From 1711b1e10224dbebc885b7bf7ca2f03f51ff9f4a Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Tue, 23 Oct 2012 11:52:53 -0600 Subject: ARM: tegra: move timer.c to drivers/clocksource/ Move arch/arm/mach-tegra/timer.c to drivers/clocksource/tegra20_timer.c so that the code is co-located with other clocksource drivers, and to reduce the size of the mach-tegra directory. Signed-off-by: Stephen Warren --- arch/arm/Kconfig | 1 + arch/arm/mach-tegra/Makefile | 1 - arch/arm/mach-tegra/board-dt-tegra20.c | 3 +- arch/arm/mach-tegra/board-dt-tegra30.c | 3 +- arch/arm/mach-tegra/board.h | 1 - arch/arm/mach-tegra/timer.c | 288 --------------------------------- 6 files changed, 5 insertions(+), 292 deletions(-) delete mode 100644 arch/arm/mach-tegra/timer.c (limited to 'arch/arm') diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 67874b82a4ed..eb9fc2f8acf1 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -642,6 +642,7 @@ config ARCH_TEGRA select ARCH_HAS_CPUFREQ select CLKDEV_LOOKUP select CLKSRC_MMIO + select CLKSRC_OF select COMMON_CLK select GENERIC_CLOCKEVENTS select GENERIC_GPIO diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index 0979e8bba78a..bd5d3120cb4b 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -2,7 +2,6 @@ obj-y += common.o obj-y += io.o obj-y += irq.o obj-y += clock.o -obj-y += timer.o obj-y += fuse.o obj-y += pmc.o obj-y += flowctrl.o diff --git a/arch/arm/mach-tegra/board-dt-tegra20.c b/arch/arm/mach-tegra/board-dt-tegra20.c index 3b9956aabf5a..8e35aaea5845 100644 --- a/arch/arm/mach-tegra/board-dt-tegra20.c +++ b/arch/arm/mach-tegra/board-dt-tegra20.c @@ -15,6 +15,7 @@ * */ +#include #include #include #include @@ -203,7 +204,7 @@ DT_MACHINE_START(TEGRA_DT, "nVidia Tegra20 (Flattened Device Tree)") .init_early = tegra20_init_early, .init_irq = tegra_dt_init_irq, .handle_irq = gic_handle_irq, - .init_time = tegra_init_timer, + .init_time = clocksource_of_init, .init_machine = tegra_dt_init, .init_late = tegra_dt_init_late, .restart = tegra_assert_system_reset, diff --git a/arch/arm/mach-tegra/board-dt-tegra30.c b/arch/arm/mach-tegra/board-dt-tegra30.c index 381b2f25f0b4..a9ed15dcc3ed 100644 --- a/arch/arm/mach-tegra/board-dt-tegra30.c +++ b/arch/arm/mach-tegra/board-dt-tegra30.c @@ -23,6 +23,7 @@ * */ +#include #include #include #include @@ -113,7 +114,7 @@ DT_MACHINE_START(TEGRA30_DT, "NVIDIA Tegra30 (Flattened Device Tree)") .init_early = tegra30_init_early, .init_irq = tegra_dt_init_irq, .handle_irq = gic_handle_irq, - .init_time = tegra_init_timer, + .init_time = clocksource_of_init, .init_machine = tegra30_dt_init, .init_late = tegra_init_late, .restart = tegra_assert_system_reset, diff --git a/arch/arm/mach-tegra/board.h b/arch/arm/mach-tegra/board.h index 744cdd246f6a..da8f5a3c4240 100644 --- a/arch/arm/mach-tegra/board.h +++ b/arch/arm/mach-tegra/board.h @@ -55,5 +55,4 @@ static inline int harmony_pcie_init(void) { return 0; } void __init tegra_paz00_wifikill_init(void); -extern void tegra_init_timer(void); #endif diff --git a/arch/arm/mach-tegra/timer.c b/arch/arm/mach-tegra/timer.c deleted file mode 100644 index b0036e519a15..000000000000 --- a/arch/arm/mach-tegra/timer.c +++ /dev/null @@ -1,288 +0,0 @@ -/* - * arch/arch/mach-tegra/timer.c - * - * Copyright (C) 2010 Google, Inc. - * - * Author: - * Colin Cross - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include -#include -#include - -#include "board.h" - -#define RTC_SECONDS 0x08 -#define RTC_SHADOW_SECONDS 0x0c -#define RTC_MILLISECONDS 0x10 - -#define TIMERUS_CNTR_1US 0x10 -#define TIMERUS_USEC_CFG 0x14 -#define TIMERUS_CNTR_FREEZE 0x4c - -#define TIMER1_BASE 0x0 -#define TIMER2_BASE 0x8 -#define TIMER3_BASE 0x50 -#define TIMER4_BASE 0x58 - -#define TIMER_PTV 0x0 -#define TIMER_PCR 0x4 - -static void __iomem *timer_reg_base; -static void __iomem *rtc_base; - -static struct timespec persistent_ts; -static u64 persistent_ms, last_persistent_ms; - -#define timer_writel(value, reg) \ - __raw_writel(value, timer_reg_base + (reg)) -#define timer_readl(reg) \ - __raw_readl(timer_reg_base + (reg)) - -static int tegra_timer_set_next_event(unsigned long cycles, - struct clock_event_device *evt) -{ - u32 reg; - - reg = 0x80000000 | ((cycles > 1) ? (cycles-1) : 0); - timer_writel(reg, TIMER3_BASE + TIMER_PTV); - - return 0; -} - -static void tegra_timer_set_mode(enum clock_event_mode mode, - struct clock_event_device *evt) -{ - u32 reg; - - timer_writel(0, TIMER3_BASE + TIMER_PTV); - - switch (mode) { - case CLOCK_EVT_MODE_PERIODIC: - reg = 0xC0000000 | ((1000000/HZ)-1); - timer_writel(reg, TIMER3_BASE + TIMER_PTV); - break; - case CLOCK_EVT_MODE_ONESHOT: - break; - case CLOCK_EVT_MODE_UNUSED: - case CLOCK_EVT_MODE_SHUTDOWN: - case CLOCK_EVT_MODE_RESUME: - break; - } -} - -static struct clock_event_device tegra_clockevent = { - .name = "timer0", - .rating = 300, - .features = CLOCK_EVT_FEAT_ONESHOT | CLOCK_EVT_FEAT_PERIODIC, - .set_next_event = tegra_timer_set_next_event, - .set_mode = tegra_timer_set_mode, -}; - -static u32 notrace tegra_read_sched_clock(void) -{ - return timer_readl(TIMERUS_CNTR_1US); -} - -/* - * tegra_rtc_read - Reads the Tegra RTC registers - * Care must be taken that this funciton is not called while the - * tegra_rtc driver could be executing to avoid race conditions - * on the RTC shadow register - */ -static u64 tegra_rtc_read_ms(void) -{ - u32 ms = readl(rtc_base + RTC_MILLISECONDS); - u32 s = readl(rtc_base + RTC_SHADOW_SECONDS); - return (u64)s * MSEC_PER_SEC + ms; -} - -/* - * tegra_read_persistent_clock - Return time from a persistent clock. - * - * Reads the time from a source which isn't disabled during PM, the - * 32k sync timer. Convert the cycles elapsed since last read into - * nsecs and adds to a monotonically increasing timespec. - * Care must be taken that this funciton is not called while the - * tegra_rtc driver could be executing to avoid race conditions - * on the RTC shadow register - */ -static void tegra_read_persistent_clock(struct timespec *ts) -{ - u64 delta; - struct timespec *tsp = &persistent_ts; - - last_persistent_ms = persistent_ms; - persistent_ms = tegra_rtc_read_ms(); - delta = persistent_ms - last_persistent_ms; - - timespec_add_ns(tsp, delta * NSEC_PER_MSEC); - *ts = *tsp; -} - -static irqreturn_t tegra_timer_interrupt(int irq, void *dev_id) -{ - struct clock_event_device *evt = (struct clock_event_device *)dev_id; - timer_writel(1<<30, TIMER3_BASE + TIMER_PCR); - evt->event_handler(evt); - return IRQ_HANDLED; -} - -static struct irqaction tegra_timer_irq = { - .name = "timer0", - .flags = IRQF_DISABLED | IRQF_TIMER | IRQF_TRIGGER_HIGH, - .handler = tegra_timer_interrupt, - .dev_id = &tegra_clockevent, -}; - -static const struct of_device_id timer_match[] __initconst = { - { .compatible = "nvidia,tegra20-timer" }, - {} -}; - -static const struct of_device_id rtc_match[] __initconst = { - { .compatible = "nvidia,tegra20-rtc" }, - {} -}; - -void __init tegra_init_timer(void) -{ - struct device_node *np; - struct clk *clk; - unsigned long rate; - int ret; - - np = of_find_matching_node(NULL, timer_match); - if (!np) { - pr_err("Failed to find timer DT node\n"); - BUG(); - } - - timer_reg_base = of_iomap(np, 0); - if (!timer_reg_base) { - pr_err("Can't map timer registers"); - BUG(); - } - - tegra_timer_irq.irq = irq_of_parse_and_map(np, 2); - if (tegra_timer_irq.irq <= 0) { - pr_err("Failed to map timer IRQ\n"); - BUG(); - } - - clk = clk_get_sys("timer", NULL); - if (IS_ERR(clk)) { - pr_warn("Unable to get timer clock. Assuming 12Mhz input clock.\n"); - rate = 12000000; - } else { - clk_prepare_enable(clk); - rate = clk_get_rate(clk); - } - - of_node_put(np); - - np = of_find_matching_node(NULL, rtc_match); - if (!np) { - pr_err("Failed to find RTC DT node\n"); - BUG(); - } - - rtc_base = of_iomap(np, 0); - if (!rtc_base) { - pr_err("Can't map RTC registers"); - BUG(); - } - - /* - * rtc registers are used by read_persistent_clock, keep the rtc clock - * enabled - */ - clk = clk_get_sys("rtc-tegra", NULL); - if (IS_ERR(clk)) - pr_warn("Unable to get rtc-tegra clock\n"); - else - clk_prepare_enable(clk); - - of_node_put(np); - - switch (rate) { - case 12000000: - timer_writel(0x000b, TIMERUS_USEC_CFG); - break; - case 13000000: - timer_writel(0x000c, TIMERUS_USEC_CFG); - break; - case 19200000: - timer_writel(0x045f, TIMERUS_USEC_CFG); - break; - case 26000000: - timer_writel(0x0019, TIMERUS_USEC_CFG); - break; - default: - WARN(1, "Unknown clock rate"); - } - - setup_sched_clock(tegra_read_sched_clock, 32, 1000000); - - if (clocksource_mmio_init(timer_reg_base + TIMERUS_CNTR_1US, - "timer_us", 1000000, 300, 32, clocksource_mmio_readl_up)) { - pr_err("Failed to register clocksource\n"); - BUG(); - } - - ret = setup_irq(tegra_timer_irq.irq, &tegra_timer_irq); - if (ret) { - pr_err("Failed to register timer IRQ: %d\n", ret); - BUG(); - } - - clockevents_calc_mult_shift(&tegra_clockevent, 1000000, 5); - tegra_clockevent.max_delta_ns = - clockevent_delta2ns(0x1fffffff, &tegra_clockevent); - tegra_clockevent.min_delta_ns = - clockevent_delta2ns(0x1, &tegra_clockevent); - tegra_clockevent.cpumask = cpu_all_mask; - tegra_clockevent.irq = tegra_timer_irq.irq; - clockevents_register_device(&tegra_clockevent); -#ifdef CONFIG_HAVE_ARM_TWD - twd_local_timer_of_register(); -#endif - register_persistent_clock(NULL, tegra_read_persistent_clock); -} - -#ifdef CONFIG_PM -static u32 usec_config; - -void tegra_timer_suspend(void) -{ - usec_config = timer_readl(TIMERUS_USEC_CFG); -} - -void tegra_timer_resume(void) -{ - timer_writel(usec_config, TIMERUS_USEC_CFG); -} -#endif -- cgit v1.2.3 From deeb8d194814c98be379a284e07d938c6af066f4 Mon Sep 17 00:00:00 2001 From: Hiroshi Doyu Date: Thu, 3 Jan 2013 08:27:05 +0200 Subject: ARM: tegra: Make variables static No need to be public. Checked with: $ touch arch/arm/mach-tegra/*[ch] && make C=1 Signed-off-by: Hiroshi Doyu Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/apbio.c | 2 +- arch/arm/mach-tegra/board-dt-tegra20.c | 10 +++++----- arch/arm/mach-tegra/board-dt-tegra30.c | 2 +- arch/arm/mach-tegra/flowctrl.c | 4 ++-- arch/arm/mach-tegra/tegra30_clocks_data.c | 6 +++--- 5 files changed, 12 insertions(+), 12 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/apbio.c b/arch/arm/mach-tegra/apbio.c index d091675ba376..d7aa52ea6cfc 100644 --- a/arch/arm/mach-tegra/apbio.c +++ b/arch/arm/mach-tegra/apbio.c @@ -38,7 +38,7 @@ static void tegra_apb_writel_direct(u32 value, unsigned long offset); static struct dma_chan *tegra_apb_dma_chan; static struct dma_slave_config dma_sconfig; -bool tegra_apb_dma_init(void) +static bool tegra_apb_dma_init(void) { dma_cap_mask_t mask; diff --git a/arch/arm/mach-tegra/board-dt-tegra20.c b/arch/arm/mach-tegra/board-dt-tegra20.c index 8e35aaea5845..e1f87dd314ef 100644 --- a/arch/arm/mach-tegra/board-dt-tegra20.c +++ b/arch/arm/mach-tegra/board-dt-tegra20.c @@ -46,31 +46,31 @@ #include "common.h" #include "iomap.h" -struct tegra_ehci_platform_data tegra_ehci1_pdata = { +static struct tegra_ehci_platform_data tegra_ehci1_pdata = { .operating_mode = TEGRA_USB_OTG, .power_down_on_bus_suspend = 1, .vbus_gpio = -1, }; -struct tegra_ulpi_config tegra_ehci2_ulpi_phy_config = { +static struct tegra_ulpi_config tegra_ehci2_ulpi_phy_config = { .reset_gpio = -1, .clk = "cdev2", }; -struct tegra_ehci_platform_data tegra_ehci2_pdata = { +static struct tegra_ehci_platform_data tegra_ehci2_pdata = { .phy_config = &tegra_ehci2_ulpi_phy_config, .operating_mode = TEGRA_USB_HOST, .power_down_on_bus_suspend = 1, .vbus_gpio = -1, }; -struct tegra_ehci_platform_data tegra_ehci3_pdata = { +static struct tegra_ehci_platform_data tegra_ehci3_pdata = { .operating_mode = TEGRA_USB_HOST, .power_down_on_bus_suspend = 1, .vbus_gpio = -1, }; -struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = { +static struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = { OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC1_BASE, "sdhci-tegra.0", NULL), OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC2_BASE, "sdhci-tegra.1", NULL), OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC3_BASE, "sdhci-tegra.2", NULL), diff --git a/arch/arm/mach-tegra/board-dt-tegra30.c b/arch/arm/mach-tegra/board-dt-tegra30.c index a9ed15dcc3ed..cfe5fc02be77 100644 --- a/arch/arm/mach-tegra/board-dt-tegra30.c +++ b/arch/arm/mach-tegra/board-dt-tegra30.c @@ -39,7 +39,7 @@ #include "common.h" #include "iomap.h" -struct of_dev_auxdata tegra30_auxdata_lookup[] __initdata = { +static struct of_dev_auxdata tegra30_auxdata_lookup[] __initdata = { OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000000, "sdhci-tegra.0", NULL), OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000200, "sdhci-tegra.1", NULL), OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000400, "sdhci-tegra.2", NULL), diff --git a/arch/arm/mach-tegra/flowctrl.c b/arch/arm/mach-tegra/flowctrl.c index a2250ddae797..5393eb2cae21 100644 --- a/arch/arm/mach-tegra/flowctrl.c +++ b/arch/arm/mach-tegra/flowctrl.c @@ -26,14 +26,14 @@ #include "flowctrl.h" #include "iomap.h" -u8 flowctrl_offset_halt_cpu[] = { +static u8 flowctrl_offset_halt_cpu[] = { FLOW_CTRL_HALT_CPU0_EVENTS, FLOW_CTRL_HALT_CPU1_EVENTS, FLOW_CTRL_HALT_CPU1_EVENTS + 8, FLOW_CTRL_HALT_CPU1_EVENTS + 16, }; -u8 flowctrl_offset_cpu_csr[] = { +static u8 flowctrl_offset_cpu_csr[] = { FLOW_CTRL_CPU0_CSR, FLOW_CTRL_CPU1_CSR, FLOW_CTRL_CPU1_CSR + 8, diff --git a/arch/arm/mach-tegra/tegra30_clocks_data.c b/arch/arm/mach-tegra/tegra30_clocks_data.c index 6942c7add3bb..741d264d5ecb 100644 --- a/arch/arm/mach-tegra/tegra30_clocks_data.c +++ b/arch/arm/mach-tegra/tegra30_clocks_data.c @@ -1183,7 +1183,7 @@ static struct clk tegra_dsib = { .num_parents = ARRAY_SIZE(mux_plld_out0_plld2_out0), }; -struct clk *tegra_list_clks[] = { +static struct clk *tegra_list_clks[] = { &tegra_apbdma, &tegra_rtc, &tegra_kbc, @@ -1289,7 +1289,7 @@ struct clk *tegra_list_clks[] = { * configuration. List those here to register them twice in the clock lookup * table under two names. */ -struct clk_duplicate tegra_clk_duplicates[] = { +static struct clk_duplicate tegra_clk_duplicates[] = { CLK_DUPLICATE("uarta", "serial8250.0", NULL), CLK_DUPLICATE("uartb", "serial8250.1", NULL), CLK_DUPLICATE("uartc", "serial8250.2", NULL), @@ -1340,7 +1340,7 @@ struct clk_duplicate tegra_clk_duplicates[] = { CLK_DUPLICATE("pll_d2_out0", "hdmi", "parent"), }; -struct clk *tegra_ptr_clks[] = { +static struct clk *tegra_ptr_clks[] = { &tegra_clk_32k, &tegra_clk_m, &tegra_clk_m_div2, -- cgit v1.2.3 From 45c9e5929624e3a169e3d4c0e6568a4e570272a2 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Wed, 2 Jan 2013 14:34:15 -0700 Subject: ARM: tegra: fix Kconfig warnings when !SMP Fix: warning: (ARCH_TEGRA_2x_SOC) selects ARM_ERRATA_754327 which has unmet direct dependencies (CPU_V7 && SMP) warning: (ARCH_TEGRA_2x_SOC) selects ARM_ERRATA_742230 which has unmet direct dependencies (CPU_V7 && SMP) by selecting options only if SMP. Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/Kconfig | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/Kconfig b/arch/arm/mach-tegra/Kconfig index b442f15fd01a..1ec7f80e2af5 100644 --- a/arch/arm/mach-tegra/Kconfig +++ b/arch/arm/mach-tegra/Kconfig @@ -6,9 +6,9 @@ config ARCH_TEGRA_2x_SOC bool "Enable support for Tegra20 family" select ARCH_REQUIRE_GPIOLIB select ARM_ERRATA_720789 - select ARM_ERRATA_742230 + select ARM_ERRATA_742230 if SMP select ARM_ERRATA_751472 - select ARM_ERRATA_754327 + select ARM_ERRATA_754327 if SMP select ARM_ERRATA_764369 if SMP select ARM_GIC select CPU_FREQ_TABLE if CPU_FREQ -- cgit v1.2.3 From c26cefd08990e3a393cc1592efc3f097f608015f Mon Sep 17 00:00:00 2001 From: Richard Zhao Date: Fri, 21 Dec 2012 00:09:55 +0000 Subject: ARM: tegra: cpufreq: move clk_get/put out of function tegra_cpu_init/exit tegra_cpu_init/exit will be called every time one cpu core is online or offline. And all cpu cores share same clocks, redundant clk_get/put wast time, so I move them out. Signed-off-by: Richard Zhao Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/cpu-tegra.c | 40 ++++++++++++++++++++-------------------- 1 file changed, 20 insertions(+), 20 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c index a74d3c7d2e26..85d4a23bba03 100644 --- a/arch/arm/mach-tegra/cpu-tegra.c +++ b/arch/arm/mach-tegra/cpu-tegra.c @@ -214,24 +214,6 @@ static int tegra_cpu_init(struct cpufreq_policy *policy) if (policy->cpu >= NUM_CPUS) return -EINVAL; - cpu_clk = clk_get_sys(NULL, "cpu"); - if (IS_ERR(cpu_clk)) - return PTR_ERR(cpu_clk); - - pll_x_clk = clk_get_sys(NULL, "pll_x"); - if (IS_ERR(pll_x_clk)) - return PTR_ERR(pll_x_clk); - - pll_p_clk = clk_get_sys(NULL, "pll_p"); - if (IS_ERR(pll_p_clk)) - return PTR_ERR(pll_p_clk); - - emc_clk = clk_get_sys("cpu", "emc"); - if (IS_ERR(emc_clk)) { - clk_put(cpu_clk); - return PTR_ERR(emc_clk); - } - clk_prepare_enable(emc_clk); clk_prepare_enable(cpu_clk); @@ -256,8 +238,6 @@ static int tegra_cpu_exit(struct cpufreq_policy *policy) { cpufreq_frequency_table_cpuinfo(policy, freq_table); clk_disable_unprepare(emc_clk); - clk_put(emc_clk); - clk_put(cpu_clk); return 0; } @@ -278,12 +258,32 @@ static struct cpufreq_driver tegra_cpufreq_driver = { static int __init tegra_cpufreq_init(void) { + cpu_clk = clk_get_sys(NULL, "cpu"); + if (IS_ERR(cpu_clk)) + return PTR_ERR(cpu_clk); + + pll_x_clk = clk_get_sys(NULL, "pll_x"); + if (IS_ERR(pll_x_clk)) + return PTR_ERR(pll_x_clk); + + pll_p_clk = clk_get_sys(NULL, "pll_p"); + if (IS_ERR(pll_p_clk)) + return PTR_ERR(pll_p_clk); + + emc_clk = clk_get_sys("cpu", "emc"); + if (IS_ERR(emc_clk)) { + clk_put(cpu_clk); + return PTR_ERR(emc_clk); + } + return cpufreq_register_driver(&tegra_cpufreq_driver); } static void __exit tegra_cpufreq_exit(void) { cpufreq_unregister_driver(&tegra_cpufreq_driver); + clk_put(emc_clk); + clk_put(cpu_clk); } -- cgit v1.2.3 From 130bfed72c75a36c76ecc82d73818c6fccd2a468 Mon Sep 17 00:00:00 2001 From: Joseph Lo Date: Thu, 3 Jan 2013 15:31:31 +0800 Subject: ARM: tegra30: fix power up sequence for boot_secondary The power up sequence is different on the cold boot CPU and the CPU that resumed from the hotplug. For the cold boot CPU, it was been power gated as default. To power up the cold boot CPU, the power should be un-gated by un toggling the power gate register manually. For the CPU that resumed from the hotplug, after un-halted the CPU. The flow controller will un-gate the power of the CPU. No need to manually control, just wait the power be resumed and continue the power up sequence after the CPU power is ready. Based on the work by: Varun Wadekar Signed-off-by: Joseph Lo Acked-by: Peter De Schrijver Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/platsmp.c | 39 ++++++++++++++++++++++++++++++++++++++- 1 file changed, 38 insertions(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c index 1b926df99c4b..40f8c37c8178 100644 --- a/arch/arm/mach-tegra/platsmp.c +++ b/arch/arm/mach-tegra/platsmp.c @@ -23,6 +23,7 @@ #include #include #include +#include #include @@ -36,6 +37,7 @@ extern void tegra_secondary_startup(void); +static cpumask_t tegra_cpu_init_mask; static void __iomem *scu_base = IO_ADDRESS(TEGRA_ARM_PERIF_BASE); #define EVP_CPU_RESET_VECTOR \ @@ -50,6 +52,7 @@ static void __cpuinit tegra_secondary_init(unsigned int cpu) */ gic_secondary_init(0); + cpumask_set_cpu(cpu, &tegra_cpu_init_mask); } static int tegra20_power_up_cpu(unsigned int cpu) @@ -72,7 +75,35 @@ static int tegra30_power_up_cpu(unsigned int cpu) if (pwrgateid < 0) return pwrgateid; - /* If this is the first boot, toggle powergates directly. */ + /* + * The power up sequence of cold boot CPU and warm boot CPU + * was different. + * + * For warm boot CPU that was resumed from CPU hotplug, the + * power will be resumed automatically after un-halting the + * flow controller of the warm boot CPU. We need to wait for + * the confirmaiton that the CPU is powered then removing + * the IO clamps. + * For cold boot CPU, do not wait. After the cold boot CPU be + * booted, it will run to tegra_secondary_init() and set + * tegra_cpu_init_mask which influences what tegra30_power_up_cpu() + * next time around. + */ + if (cpumask_test_cpu(cpu, &tegra_cpu_init_mask)) { + timeout = jiffies + 5*HZ; + do { + if (!tegra_powergate_is_powered(pwrgateid)) + goto remove_clamps; + udelay(10); + } while (time_before(jiffies, timeout)); + } + + /* + * The power status of the cold boot CPU is power gated as + * default. To power up the cold boot CPU, the power should + * be un-gated by un-toggling the power gate register + * manually. + */ if (!tegra_powergate_is_powered(pwrgateid)) { ret = tegra_powergate_power_on(pwrgateid); if (ret) @@ -87,6 +118,7 @@ static int tegra30_power_up_cpu(unsigned int cpu) } } +remove_clamps: /* CPU partition is powered. Enable the CPU clock. */ tegra_enable_cpu_clock(cpu); udelay(10); @@ -105,6 +137,8 @@ static int __cpuinit tegra_boot_secondary(unsigned int cpu, struct task_struct * { int status; + cpu = cpu_logical_map(cpu); + /* * Force the CPU into reset. The CPU must remain in reset when the * flow controller state is cleared (which will cause the flow @@ -165,6 +199,9 @@ static void __init tegra_smp_init_cpus(void) static void __init tegra_smp_prepare_cpus(unsigned int max_cpus) { + /* Always mark the boot CPU (CPU0) as initialized. */ + cpumask_set_cpu(0, &tegra_cpu_init_mask); + tegra_cpu_reset_handler_init(); scu_enable(scu_base); } -- cgit v1.2.3 From 57886616ca7bff844a6427436d0c8faf74653f73 Mon Sep 17 00:00:00 2001 From: Joseph Lo Date: Thu, 3 Jan 2013 14:42:59 +0800 Subject: ARM: tegra: update the cache maintenance order for CPU shutdown Updating the cache maintenance order before CPU shutdown when doing CPU hotplug. The old order: * clean L1 by flush_cache_all * exit SMP * CPU shutdown Adapt to: * disable L1 data cache by clear C bit * clean L1 by v7_flush_dcache_louis * exit SMP * CPU shutdown For CPU hotplug case, it's no need to do "flush_cache_all". And we should disable L1 data cache before clean L1 data cache. Then leaving the SMP coherency. Signed-off-by: Joseph Lo Acked-by: Peter De Schrijver Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/hotplug.c | 4 ++-- arch/arm/mach-tegra/sleep-tegra20.S | 3 --- arch/arm/mach-tegra/sleep-tegra30.S | 3 --- arch/arm/mach-tegra/sleep.S | 4 +++- arch/arm/mach-tegra/sleep.h | 1 + 5 files changed, 6 insertions(+), 9 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/hotplug.c b/arch/arm/mach-tegra/hotplug.c index dca5141a2c31..d8c683b875d1 100644 --- a/arch/arm/mach-tegra/hotplug.c +++ b/arch/arm/mach-tegra/hotplug.c @@ -28,8 +28,8 @@ void __ref tegra_cpu_die(unsigned int cpu) { cpu = cpu_logical_map(cpu); - /* Flush the L1 data cache. */ - flush_cache_all(); + /* Clean L1 data cache */ + tegra_disable_clean_inv_dcache(); /* Shut down the current CPU. */ tegra_hotplug_shutdown(); diff --git a/arch/arm/mach-tegra/sleep-tegra20.S b/arch/arm/mach-tegra/sleep-tegra20.S index 72ce709799da..ad2ca07d0578 100644 --- a/arch/arm/mach-tegra/sleep-tegra20.S +++ b/arch/arm/mach-tegra/sleep-tegra20.S @@ -33,9 +33,6 @@ * should never return */ ENTRY(tegra20_hotplug_shutdown) - /* Turn off SMP coherency */ - exit_smp r4, r5 - /* Put this CPU down */ cpu_id r0 bl tegra20_cpu_shutdown diff --git a/arch/arm/mach-tegra/sleep-tegra30.S b/arch/arm/mach-tegra/sleep-tegra30.S index 562a8e7e413d..63a15bd9b653 100644 --- a/arch/arm/mach-tegra/sleep-tegra30.S +++ b/arch/arm/mach-tegra/sleep-tegra30.S @@ -32,9 +32,6 @@ * Should never return. */ ENTRY(tegra30_hotplug_shutdown) - /* Turn off SMP coherency */ - exit_smp r4, r5 - /* Powergate this CPU */ mov r0, #TEGRA30_POWER_HOTPLUG_SHUTDOWN bl tegra30_cpu_shutdown diff --git a/arch/arm/mach-tegra/sleep.S b/arch/arm/mach-tegra/sleep.S index 26afa7cbed11..addae357da3f 100644 --- a/arch/arm/mach-tegra/sleep.S +++ b/arch/arm/mach-tegra/sleep.S @@ -34,7 +34,7 @@ #include "flowctrl.h" #include "sleep.h" -#ifdef CONFIG_PM_SLEEP +#if defined(CONFIG_HOTPLUG_CPU) || defined(CONFIG_PM_SLEEP) /* * tegra_disable_clean_inv_dcache * @@ -60,7 +60,9 @@ ENTRY(tegra_disable_clean_inv_dcache) ldmfd sp!, {r0, r4-r5, r7, r9-r11, pc} ENDPROC(tegra_disable_clean_inv_dcache) +#endif +#ifdef CONFIG_PM_SLEEP /* * tegra_sleep_cpu_finish(unsigned long v2p) * diff --git a/arch/arm/mach-tegra/sleep.h b/arch/arm/mach-tegra/sleep.h index 9821ee725420..56505c381ea8 100644 --- a/arch/arm/mach-tegra/sleep.h +++ b/arch/arm/mach-tegra/sleep.h @@ -106,6 +106,7 @@ exit_l2_resume: #else void tegra_resume(void); int tegra_sleep_cpu_finish(unsigned long); +void tegra_disable_clean_inv_dcache(void); #ifdef CONFIG_HOTPLUG_CPU void tegra20_hotplug_init(void); -- cgit v1.2.3 From b811943160cf3b040341c50d23440cf6d68ae079 Mon Sep 17 00:00:00 2001 From: Joseph Lo Date: Thu, 3 Jan 2013 14:43:00 +0800 Subject: ARM: tegra: moving the clock gating procedure to tegra_cpu_kill The tegra_cpu_die was be executed by the CPU itslf. So the clock gating procedure won't be executed after the CPU hardware shutdown code. Moving the clock gating procedure to tegra_cpu_kill that will be run by another CPU after the CPU died. Signed-off-by: Joseph Lo Acked-by: Peter De Schrijver Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/common.h | 1 + arch/arm/mach-tegra/hotplug.c | 17 +++++++++++------ arch/arm/mach-tegra/platsmp.c | 1 + 3 files changed, 13 insertions(+), 6 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/common.h b/arch/arm/mach-tegra/common.h index 02f71b4f1e51..32f8eb3fe344 100644 --- a/arch/arm/mach-tegra/common.h +++ b/arch/arm/mach-tegra/common.h @@ -1,4 +1,5 @@ extern struct smp_operations tegra_smp_ops; +extern int tegra_cpu_kill(unsigned int cpu); extern void tegra_cpu_die(unsigned int cpu); extern int tegra_cpu_disable(unsigned int cpu); diff --git a/arch/arm/mach-tegra/hotplug.c b/arch/arm/mach-tegra/hotplug.c index d8c683b875d1..6a27de4001ee 100644 --- a/arch/arm/mach-tegra/hotplug.c +++ b/arch/arm/mach-tegra/hotplug.c @@ -19,6 +19,17 @@ static void (*tegra_hotplug_shutdown)(void); +int tegra_cpu_kill(unsigned cpu) +{ + cpu = cpu_logical_map(cpu); + + /* Clock gate the CPU */ + tegra_wait_cpu_in_reset(cpu); + tegra_disable_cpu_clock(cpu); + + return 1; +} + /* * platform-specific code to shutdown a CPU * @@ -26,18 +37,12 @@ static void (*tegra_hotplug_shutdown)(void); */ void __ref tegra_cpu_die(unsigned int cpu) { - cpu = cpu_logical_map(cpu); - /* Clean L1 data cache */ tegra_disable_clean_inv_dcache(); /* Shut down the current CPU. */ tegra_hotplug_shutdown(); - /* Clock gate the CPU */ - tegra_wait_cpu_in_reset(cpu); - tegra_disable_cpu_clock(cpu); - /* Should never return here. */ BUG(); } diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c index 40f8c37c8178..5882da0f4d8a 100644 --- a/arch/arm/mach-tegra/platsmp.c +++ b/arch/arm/mach-tegra/platsmp.c @@ -212,6 +212,7 @@ struct smp_operations tegra_smp_ops __initdata = { .smp_secondary_init = tegra_secondary_init, .smp_boot_secondary = tegra_boot_secondary, #ifdef CONFIG_HOTPLUG_CPU + .cpu_kill = tegra_cpu_kill, .cpu_die = tegra_cpu_die, .cpu_disable = tegra_cpu_disable, #endif -- cgit v1.2.3 From 8c627fa6583a4894189a47a0bf868f7848b51748 Mon Sep 17 00:00:00 2001 From: Joseph Lo Date: Fri, 4 Jan 2013 17:32:21 +0800 Subject: ARM: tegra: clean up the CPUINIT section There are some redundant codes in the CPUINIT section that was caused by some codes not be organized well in "headsmp.S". Currently all the codes in "headsmp.S" were put into CPUINIT section. But actually it doesn't need to be loacted in CPUINIT section. There is no fuction access them in CPUINIT section and we will relocate them to IRAM. These codes also caused some unnecessary functions that access these codes been put into CPUINIT section too. This patch clean it up and put them into normal text section. Signed-off-by: Joseph Lo Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/cpuidle-tegra30.c | 6 +++--- arch/arm/mach-tegra/headsmp.S | 2 -- arch/arm/mach-tegra/pm.c | 4 ++-- 3 files changed, 5 insertions(+), 7 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/cpuidle-tegra30.c b/arch/arm/mach-tegra/cpuidle-tegra30.c index 5e8cbf5b799f..82530bd9b8c2 100644 --- a/arch/arm/mach-tegra/cpuidle-tegra30.c +++ b/arch/arm/mach-tegra/cpuidle-tegra30.c @@ -121,9 +121,9 @@ static inline bool tegra30_cpu_core_power_down(struct cpuidle_device *dev, } #endif -static int __cpuinit tegra30_idle_lp2(struct cpuidle_device *dev, - struct cpuidle_driver *drv, - int index) +static int tegra30_idle_lp2(struct cpuidle_device *dev, + struct cpuidle_driver *drv, + int index) { u32 cpu = is_smp() ? cpu_logical_map(dev->cpu) : dev->cpu; bool entered_lp2 = false; diff --git a/arch/arm/mach-tegra/headsmp.S b/arch/arm/mach-tegra/headsmp.S index 4a317fae6860..23f487da7a57 100644 --- a/arch/arm/mach-tegra/headsmp.S +++ b/arch/arm/mach-tegra/headsmp.S @@ -16,8 +16,6 @@ #define RESET_DATA(x) ((TEGRA_RESET_##x)*4) .section ".text.head", "ax" - __CPUINIT - /* * Tegra specific entry point for secondary CPUs. * The secondary kernel init calls v7_flush_dcache_all before it enables diff --git a/arch/arm/mach-tegra/pm.c b/arch/arm/mach-tegra/pm.c index 1b11707eaca0..498d70b33775 100644 --- a/arch/arm/mach-tegra/pm.c +++ b/arch/arm/mach-tegra/pm.c @@ -148,7 +148,7 @@ static void suspend_cpu_complex(void) save_cpu_arch_register(); } -void __cpuinit tegra_clear_cpu_in_lp2(int phy_cpu_id) +void tegra_clear_cpu_in_lp2(int phy_cpu_id) { u32 *cpu_in_lp2 = tegra_cpu_lp2_mask; @@ -160,7 +160,7 @@ void __cpuinit tegra_clear_cpu_in_lp2(int phy_cpu_id) spin_unlock(&tegra_lp2_lock); } -bool __cpuinit tegra_set_cpu_in_lp2(int phy_cpu_id) +bool tegra_set_cpu_in_lp2(int phy_cpu_id) { bool last_cpu = false; cpumask_t *cpu_lp2_mask = tegra_cpu_lp2_mask; -- cgit v1.2.3 From 9e32366fe51fea464adb21c244f372d55207e13c Mon Sep 17 00:00:00 2001 From: Joseph Lo Date: Fri, 4 Jan 2013 17:32:22 +0800 Subject: ARM: tegra: make device can run on UP The reset handler code is used for either UP or SMP. To make Tegra device can compile for UP. It needs to be moved to another file that is not SMP only. This is because the reset handler also be needed by CPU idle "powered-down" mode. So we also need to put the reset handler init function in non-SMP only and init them always. And currently the implementation of the reset handler to know which CPU is OK to bring up was identital with "cpu_present_mask". But the "cpu_present_mask" did not initialize yet when the reset handler init function was moved to init early function. We use the "cpu_possible_mask" to replace "cpu_present_mask". Then it can work on both UP and SMP case. Signed-off-by: Joseph Lo [swarren: dropped the move of v7_invalidate_l1() from one file to another, to avoid conflicts with Pavel's cleanup of this function, adjust Makefile so each line only contains 1 file.] Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/Makefile | 3 +- arch/arm/mach-tegra/common.c | 3 + arch/arm/mach-tegra/headsmp.S | 221 +-------------------------------- arch/arm/mach-tegra/platsmp.c | 1 - arch/arm/mach-tegra/reset-handler.S | 239 ++++++++++++++++++++++++++++++++++++ arch/arm/mach-tegra/reset.c | 2 +- 6 files changed, 246 insertions(+), 223 deletions(-) create mode 100644 arch/arm/mach-tegra/reset-handler.S (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index bd5d3120cb4b..a839bb3d9703 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -8,6 +8,8 @@ obj-y += flowctrl.o obj-y += powergate.o obj-y += apbio.o obj-y += pm.o +obj-y += reset.o +obj-y += reset-handler.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o obj-$(CONFIG_CPU_IDLE) += sleep.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_clocks.o @@ -26,7 +28,6 @@ ifeq ($(CONFIG_CPU_IDLE),y) obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += cpuidle-tegra30.o endif obj-$(CONFIG_SMP) += platsmp.o headsmp.o -obj-$(CONFIG_SMP) += reset.o obj-$(CONFIG_HOTPLUG_CPU) += hotplug.o obj-$(CONFIG_CPU_FREQ) += cpu-tegra.o obj-$(CONFIG_TEGRA_PCI) += pcie.o diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c index d54cfc54b9fe..3efe80b2af28 100644 --- a/arch/arm/mach-tegra/common.c +++ b/arch/arm/mach-tegra/common.c @@ -37,6 +37,7 @@ #include "apbio.h" #include "sleep.h" #include "pm.h" +#include "reset.h" /* * Storage for debug-macro.S's state. @@ -137,6 +138,7 @@ static void __init tegra_init_cache(void) #ifdef CONFIG_ARCH_TEGRA_2x_SOC void __init tegra20_init_early(void) { + tegra_cpu_reset_handler_init(); tegra_apb_io_init(); tegra_init_fuse(); tegra2_init_clocks(); @@ -150,6 +152,7 @@ void __init tegra20_init_early(void) #ifdef CONFIG_ARCH_TEGRA_3x_SOC void __init tegra30_init_early(void) { + tegra_cpu_reset_handler_init(); tegra_apb_io_init(); tegra_init_fuse(); tegra30_init_clocks(); diff --git a/arch/arm/mach-tegra/headsmp.S b/arch/arm/mach-tegra/headsmp.S index 23f487da7a57..b2834810b02b 100644 --- a/arch/arm/mach-tegra/headsmp.S +++ b/arch/arm/mach-tegra/headsmp.S @@ -1,21 +1,10 @@ #include #include -#include -#include -#include - -#include "flowctrl.h" -#include "iomap.h" -#include "reset.h" #include "sleep.h" -#define APB_MISC_GP_HIDREV 0x804 -#define PMC_SCRATCH41 0x140 - -#define RESET_DATA(x) ((TEGRA_RESET_##x)*4) - .section ".text.head", "ax" + /* * Tegra specific entry point for secondary CPUs. * The secondary kernel init calls v7_flush_dcache_all before it enables @@ -59,7 +48,6 @@ ENTRY(v7_invalidate_l1) mov pc, lr ENDPROC(v7_invalidate_l1) - ENTRY(tegra_secondary_startup) bl v7_invalidate_l1 /* Enable coresight */ @@ -67,210 +55,3 @@ ENTRY(tegra_secondary_startup) mcr p14, 0, r0, c7, c12, 6 b secondary_startup ENDPROC(tegra_secondary_startup) - -#ifdef CONFIG_PM_SLEEP -/* - * tegra_resume - * - * CPU boot vector when restarting the a CPU following - * an LP2 transition. Also branched to by LP0 and LP1 resume after - * re-enabling sdram. - */ -ENTRY(tegra_resume) - bl v7_invalidate_l1 - /* Enable coresight */ - mov32 r0, 0xC5ACCE55 - mcr p14, 0, r0, c7, c12, 6 - - cpu_id r0 - cmp r0, #0 @ CPU0? - bne cpu_resume @ no - -#ifdef CONFIG_ARCH_TEGRA_3x_SOC - /* Are we on Tegra20? */ - mov32 r6, TEGRA_APB_MISC_BASE - ldr r0, [r6, #APB_MISC_GP_HIDREV] - and r0, r0, #0xff00 - cmp r0, #(0x20 << 8) - beq 1f @ Yes - /* Clear the flow controller flags for this CPU. */ - mov32 r2, TEGRA_FLOW_CTRL_BASE + FLOW_CTRL_CPU0_CSR @ CPU0 CSR - ldr r1, [r2] - /* Clear event & intr flag */ - orr r1, r1, \ - #FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG - movw r0, #0x0FFD @ enable, cluster_switch, immed, & bitmaps - bic r1, r1, r0 - str r1, [r2] -1: -#endif - -#ifdef CONFIG_HAVE_ARM_SCU - /* enable SCU */ - mov32 r0, TEGRA_ARM_PERIF_BASE - ldr r1, [r0] - orr r1, r1, #1 - str r1, [r0] -#endif - - /* L2 cache resume & re-enable */ - l2_cache_resume r0, r1, r2, l2x0_saved_regs_addr - - b cpu_resume -ENDPROC(tegra_resume) -#endif - -#ifdef CONFIG_CACHE_L2X0 - .globl l2x0_saved_regs_addr -l2x0_saved_regs_addr: - .long 0 -#endif - - .align L1_CACHE_SHIFT -ENTRY(__tegra_cpu_reset_handler_start) - -/* - * __tegra_cpu_reset_handler: - * - * Common handler for all CPU reset events. - * - * Register usage within the reset handler: - * - * R7 = CPU present (to the OS) mask - * R8 = CPU in LP1 state mask - * R9 = CPU in LP2 state mask - * R10 = CPU number - * R11 = CPU mask - * R12 = pointer to reset handler data - * - * NOTE: This code is copied to IRAM. All code and data accesses - * must be position-independent. - */ - - .align L1_CACHE_SHIFT -ENTRY(__tegra_cpu_reset_handler) - - cpsid aif, 0x13 @ SVC mode, interrupts disabled - mrc p15, 0, r10, c0, c0, 5 @ MPIDR - and r10, r10, #0x3 @ R10 = CPU number - mov r11, #1 - mov r11, r11, lsl r10 @ R11 = CPU mask - adr r12, __tegra_cpu_reset_handler_data - -#ifdef CONFIG_SMP - /* Does the OS know about this CPU? */ - ldr r7, [r12, #RESET_DATA(MASK_PRESENT)] - tst r7, r11 @ if !present - bleq __die @ CPU not present (to OS) -#endif - -#ifdef CONFIG_ARCH_TEGRA_2x_SOC - /* Are we on Tegra20? */ - mov32 r6, TEGRA_APB_MISC_BASE - ldr r0, [r6, #APB_MISC_GP_HIDREV] - and r0, r0, #0xff00 - cmp r0, #(0x20 << 8) - bne 1f - /* If not CPU0, don't let CPU0 reset CPU1 now that CPU1 is coming up. */ - mov32 r6, TEGRA_PMC_BASE - mov r0, #0 - cmp r10, #0 - strne r0, [r6, #PMC_SCRATCH41] -1: -#endif - - /* Waking up from LP2? */ - ldr r9, [r12, #RESET_DATA(MASK_LP2)] - tst r9, r11 @ if in_lp2 - beq __is_not_lp2 - ldr lr, [r12, #RESET_DATA(STARTUP_LP2)] - cmp lr, #0 - bleq __die @ no LP2 startup handler - bx lr - -__is_not_lp2: - -#ifdef CONFIG_SMP - /* - * Can only be secondary boot (initial or hotplug) but CPU 0 - * cannot be here. - */ - cmp r10, #0 - bleq __die @ CPU0 cannot be here - ldr lr, [r12, #RESET_DATA(STARTUP_SECONDARY)] - cmp lr, #0 - bleq __die @ no secondary startup handler - bx lr -#endif - -/* - * We don't know why the CPU reset. Just kill it. - * The LR register will contain the address we died at + 4. - */ - -__die: - sub lr, lr, #4 - mov32 r7, TEGRA_PMC_BASE - str lr, [r7, #PMC_SCRATCH41] - - mov32 r7, TEGRA_CLK_RESET_BASE - - /* Are we on Tegra20? */ - mov32 r6, TEGRA_APB_MISC_BASE - ldr r0, [r6, #APB_MISC_GP_HIDREV] - and r0, r0, #0xff00 - cmp r0, #(0x20 << 8) - bne 1f - -#ifdef CONFIG_ARCH_TEGRA_2x_SOC - mov32 r0, 0x1111 - mov r1, r0, lsl r10 - str r1, [r7, #0x340] @ CLK_RST_CPU_CMPLX_SET -#endif -1: -#ifdef CONFIG_ARCH_TEGRA_3x_SOC - mov32 r6, TEGRA_FLOW_CTRL_BASE - - cmp r10, #0 - moveq r1, #FLOW_CTRL_HALT_CPU0_EVENTS - moveq r2, #FLOW_CTRL_CPU0_CSR - movne r1, r10, lsl #3 - addne r2, r1, #(FLOW_CTRL_CPU1_CSR-8) - addne r1, r1, #(FLOW_CTRL_HALT_CPU1_EVENTS-8) - - /* Clear CPU "event" and "interrupt" flags and power gate - it when halting but not before it is in the "WFI" state. */ - ldr r0, [r6, +r2] - orr r0, r0, #FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG - orr r0, r0, #FLOW_CTRL_CSR_ENABLE - str r0, [r6, +r2] - - /* Unconditionally halt this CPU */ - mov r0, #FLOW_CTRL_WAITEVENT - str r0, [r6, +r1] - ldr r0, [r6, +r1] @ memory barrier - - dsb - isb - wfi @ CPU should be power gated here - - /* If the CPU didn't power gate above just kill it's clock. */ - - mov r0, r11, lsl #8 - str r0, [r7, #348] @ CLK_CPU_CMPLX_SET -#endif - - /* If the CPU still isn't dead, just spin here. */ - b . -ENDPROC(__tegra_cpu_reset_handler) - - .align L1_CACHE_SHIFT - .type __tegra_cpu_reset_handler_data, %object - .globl __tegra_cpu_reset_handler_data -__tegra_cpu_reset_handler_data: - .rept TEGRA_RESET_DATA_SIZE - .long 0 - .endr - .align L1_CACHE_SHIFT - -ENTRY(__tegra_cpu_reset_handler_end) diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c index 5882da0f4d8a..60daf9f945cb 100644 --- a/arch/arm/mach-tegra/platsmp.c +++ b/arch/arm/mach-tegra/platsmp.c @@ -202,7 +202,6 @@ static void __init tegra_smp_prepare_cpus(unsigned int max_cpus) /* Always mark the boot CPU (CPU0) as initialized. */ cpumask_set_cpu(0, &tegra_cpu_init_mask); - tegra_cpu_reset_handler_init(); scu_enable(scu_base); } diff --git a/arch/arm/mach-tegra/reset-handler.S b/arch/arm/mach-tegra/reset-handler.S new file mode 100644 index 000000000000..54382ceade4a --- /dev/null +++ b/arch/arm/mach-tegra/reset-handler.S @@ -0,0 +1,239 @@ +/* + * Copyright (c) 2012, NVIDIA Corporation. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#include +#include + +#include +#include +#include + +#include "flowctrl.h" +#include "iomap.h" +#include "reset.h" +#include "sleep.h" + +#define APB_MISC_GP_HIDREV 0x804 +#define PMC_SCRATCH41 0x140 + +#define RESET_DATA(x) ((TEGRA_RESET_##x)*4) + +#ifdef CONFIG_PM_SLEEP +/* + * tegra_resume + * + * CPU boot vector when restarting the a CPU following + * an LP2 transition. Also branched to by LP0 and LP1 resume after + * re-enabling sdram. + */ +ENTRY(tegra_resume) + bl v7_invalidate_l1 + /* Enable coresight */ + mov32 r0, 0xC5ACCE55 + mcr p14, 0, r0, c7, c12, 6 + + cpu_id r0 + cmp r0, #0 @ CPU0? + bne cpu_resume @ no + +#ifdef CONFIG_ARCH_TEGRA_3x_SOC + /* Are we on Tegra20? */ + mov32 r6, TEGRA_APB_MISC_BASE + ldr r0, [r6, #APB_MISC_GP_HIDREV] + and r0, r0, #0xff00 + cmp r0, #(0x20 << 8) + beq 1f @ Yes + /* Clear the flow controller flags for this CPU. */ + mov32 r2, TEGRA_FLOW_CTRL_BASE + FLOW_CTRL_CPU0_CSR @ CPU0 CSR + ldr r1, [r2] + /* Clear event & intr flag */ + orr r1, r1, \ + #FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG + movw r0, #0x0FFD @ enable, cluster_switch, immed, & bitmaps + bic r1, r1, r0 + str r1, [r2] +1: +#endif + +#ifdef CONFIG_HAVE_ARM_SCU + /* enable SCU */ + mov32 r0, TEGRA_ARM_PERIF_BASE + ldr r1, [r0] + orr r1, r1, #1 + str r1, [r0] +#endif + + /* L2 cache resume & re-enable */ + l2_cache_resume r0, r1, r2, l2x0_saved_regs_addr + + b cpu_resume +ENDPROC(tegra_resume) +#endif + +#ifdef CONFIG_CACHE_L2X0 + .globl l2x0_saved_regs_addr +l2x0_saved_regs_addr: + .long 0 +#endif + + .align L1_CACHE_SHIFT +ENTRY(__tegra_cpu_reset_handler_start) + +/* + * __tegra_cpu_reset_handler: + * + * Common handler for all CPU reset events. + * + * Register usage within the reset handler: + * + * R7 = CPU present (to the OS) mask + * R8 = CPU in LP1 state mask + * R9 = CPU in LP2 state mask + * R10 = CPU number + * R11 = CPU mask + * R12 = pointer to reset handler data + * + * NOTE: This code is copied to IRAM. All code and data accesses + * must be position-independent. + */ + + .align L1_CACHE_SHIFT +ENTRY(__tegra_cpu_reset_handler) + + cpsid aif, 0x13 @ SVC mode, interrupts disabled + mrc p15, 0, r10, c0, c0, 5 @ MPIDR + and r10, r10, #0x3 @ R10 = CPU number + mov r11, #1 + mov r11, r11, lsl r10 @ R11 = CPU mask + adr r12, __tegra_cpu_reset_handler_data + +#ifdef CONFIG_SMP + /* Does the OS know about this CPU? */ + ldr r7, [r12, #RESET_DATA(MASK_PRESENT)] + tst r7, r11 @ if !present + bleq __die @ CPU not present (to OS) +#endif + +#ifdef CONFIG_ARCH_TEGRA_2x_SOC + /* Are we on Tegra20? */ + mov32 r6, TEGRA_APB_MISC_BASE + ldr r0, [r6, #APB_MISC_GP_HIDREV] + and r0, r0, #0xff00 + cmp r0, #(0x20 << 8) + bne 1f + /* If not CPU0, don't let CPU0 reset CPU1 now that CPU1 is coming up. */ + mov32 r6, TEGRA_PMC_BASE + mov r0, #0 + cmp r10, #0 + strne r0, [r6, #PMC_SCRATCH41] +1: +#endif + + /* Waking up from LP2? */ + ldr r9, [r12, #RESET_DATA(MASK_LP2)] + tst r9, r11 @ if in_lp2 + beq __is_not_lp2 + ldr lr, [r12, #RESET_DATA(STARTUP_LP2)] + cmp lr, #0 + bleq __die @ no LP2 startup handler + bx lr + +__is_not_lp2: + +#ifdef CONFIG_SMP + /* + * Can only be secondary boot (initial or hotplug) but CPU 0 + * cannot be here. + */ + cmp r10, #0 + bleq __die @ CPU0 cannot be here + ldr lr, [r12, #RESET_DATA(STARTUP_SECONDARY)] + cmp lr, #0 + bleq __die @ no secondary startup handler + bx lr +#endif + +/* + * We don't know why the CPU reset. Just kill it. + * The LR register will contain the address we died at + 4. + */ + +__die: + sub lr, lr, #4 + mov32 r7, TEGRA_PMC_BASE + str lr, [r7, #PMC_SCRATCH41] + + mov32 r7, TEGRA_CLK_RESET_BASE + + /* Are we on Tegra20? */ + mov32 r6, TEGRA_APB_MISC_BASE + ldr r0, [r6, #APB_MISC_GP_HIDREV] + and r0, r0, #0xff00 + cmp r0, #(0x20 << 8) + bne 1f + +#ifdef CONFIG_ARCH_TEGRA_2x_SOC + mov32 r0, 0x1111 + mov r1, r0, lsl r10 + str r1, [r7, #0x340] @ CLK_RST_CPU_CMPLX_SET +#endif +1: +#ifdef CONFIG_ARCH_TEGRA_3x_SOC + mov32 r6, TEGRA_FLOW_CTRL_BASE + + cmp r10, #0 + moveq r1, #FLOW_CTRL_HALT_CPU0_EVENTS + moveq r2, #FLOW_CTRL_CPU0_CSR + movne r1, r10, lsl #3 + addne r2, r1, #(FLOW_CTRL_CPU1_CSR-8) + addne r1, r1, #(FLOW_CTRL_HALT_CPU1_EVENTS-8) + + /* Clear CPU "event" and "interrupt" flags and power gate + it when halting but not before it is in the "WFI" state. */ + ldr r0, [r6, +r2] + orr r0, r0, #FLOW_CTRL_CSR_INTR_FLAG | FLOW_CTRL_CSR_EVENT_FLAG + orr r0, r0, #FLOW_CTRL_CSR_ENABLE + str r0, [r6, +r2] + + /* Unconditionally halt this CPU */ + mov r0, #FLOW_CTRL_WAITEVENT + str r0, [r6, +r1] + ldr r0, [r6, +r1] @ memory barrier + + dsb + isb + wfi @ CPU should be power gated here + + /* If the CPU didn't power gate above just kill it's clock. */ + + mov r0, r11, lsl #8 + str r0, [r7, #348] @ CLK_CPU_CMPLX_SET +#endif + + /* If the CPU still isn't dead, just spin here. */ + b . +ENDPROC(__tegra_cpu_reset_handler) + + .align L1_CACHE_SHIFT + .type __tegra_cpu_reset_handler_data, %object + .globl __tegra_cpu_reset_handler_data +__tegra_cpu_reset_handler_data: + .rept TEGRA_RESET_DATA_SIZE + .long 0 + .endr + .align L1_CACHE_SHIFT + +ENTRY(__tegra_cpu_reset_handler_end) diff --git a/arch/arm/mach-tegra/reset.c b/arch/arm/mach-tegra/reset.c index 3fd89ecd158e..1ac434e0068f 100644 --- a/arch/arm/mach-tegra/reset.c +++ b/arch/arm/mach-tegra/reset.c @@ -75,7 +75,7 @@ void __init tegra_cpu_reset_handler_init(void) #ifdef CONFIG_SMP __tegra_cpu_reset_handler_data[TEGRA_RESET_MASK_PRESENT] = - *((u32 *)cpu_present_mask); + *((u32 *)cpu_possible_mask); __tegra_cpu_reset_handler_data[TEGRA_RESET_STARTUP_SECONDARY] = virt_to_phys((void *)tegra_secondary_startup); #endif -- cgit v1.2.3 From 1395868c06bd41390e50e7c7fe9a4783dd620867 Mon Sep 17 00:00:00 2001 From: Joseph Lo Date: Mon, 7 Jan 2013 10:56:14 +0800 Subject: ARM: tegra30: make the wait time of CPU power up to proportional to HZ It would rather to use the API of time_to_jiffies than a constant number of jiffies for the wait time of CPU power up. Based on the work by: Sang-Hun Lee Signed-off-by: Joseph Lo Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/platsmp.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c index 60daf9f945cb..68670304d9bc 100644 --- a/arch/arm/mach-tegra/platsmp.c +++ b/arch/arm/mach-tegra/platsmp.c @@ -90,7 +90,7 @@ static int tegra30_power_up_cpu(unsigned int cpu) * next time around. */ if (cpumask_test_cpu(cpu, &tegra_cpu_init_mask)) { - timeout = jiffies + 5*HZ; + timeout = jiffies + msecs_to_jiffies(50); do { if (!tegra_powergate_is_powered(pwrgateid)) goto remove_clamps; @@ -110,7 +110,7 @@ static int tegra30_power_up_cpu(unsigned int cpu) return ret; /* Wait for the power to come up. */ - timeout = jiffies + 10*HZ; + timeout = jiffies + msecs_to_jiffies(100); while (tegra_powergate_is_powered(pwrgateid)) { if (time_after(jiffies, timeout)) return -ETIMEDOUT; -- cgit v1.2.3 From 24e30c9417230b359bf6dfeb923e90138df7c112 Mon Sep 17 00:00:00 2001 From: Joseph Lo Date: Fri, 25 Jan 2013 14:38:32 +0800 Subject: ARM: tegra: fix compile error when disable CPU_IDLE The "sleep.S" file has many functions that be shared by different module currently. Not just for CPU idle driver. Make it build as default now. Reported-by: Rhyland Klein Signed-off-by: Joseph Lo [swarren: add sleep.o to separate line so each line only contains 1 file] Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/Makefile | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index a839bb3d9703..f0520961bafe 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -10,8 +10,8 @@ obj-y += apbio.o obj-y += pm.o obj-y += reset.o obj-y += reset-handler.o +obj-y += sleep.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o -obj-$(CONFIG_CPU_IDLE) += sleep.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_clocks.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_clocks_data.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_speedo.o -- cgit v1.2.3 From c7736edf1b1734455c186deec53a0aa7f8fa87ea Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 11 Jan 2013 13:16:19 +0530 Subject: ARM: tegra: add function to read chipid Add function to read chip id from APB MISC registers. This function will also get called from clock driver to flush write operations on apb bus. Signed-off-by: Prashant Gaikwad Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/fuse.c | 8 +++++++- include/linux/tegra-soc.h | 22 ++++++++++++++++++++++ 2 files changed, 29 insertions(+), 1 deletion(-) create mode 100644 include/linux/tegra-soc.h (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/fuse.c b/arch/arm/mach-tegra/fuse.c index 8121742711fe..f7db0782a6b6 100644 --- a/arch/arm/mach-tegra/fuse.c +++ b/arch/arm/mach-tegra/fuse.c @@ -20,6 +20,7 @@ #include #include #include +#include #include "fuse.h" #include "iomap.h" @@ -105,6 +106,11 @@ static void tegra_get_process_id(void) tegra_core_process_id = (reg >> 12) & 3; } +u32 tegra_read_chipid(void) +{ + return readl_relaxed(IO_ADDRESS(TEGRA_APB_MISC_BASE) + 0x804); +} + void tegra_init_fuse(void) { u32 id; @@ -119,7 +125,7 @@ void tegra_init_fuse(void) reg = tegra_apb_readl(TEGRA_APB_MISC_BASE + STRAP_OPT); tegra_bct_strapping = (reg & RAM_ID_MASK) >> RAM_CODE_SHIFT; - id = readl_relaxed(IO_ADDRESS(TEGRA_APB_MISC_BASE) + 0x804); + id = tegra_read_chipid(); tegra_chip_id = (id >> 8) & 0xff; switch (tegra_chip_id) { diff --git a/include/linux/tegra-soc.h b/include/linux/tegra-soc.h new file mode 100644 index 000000000000..95f611d78f3a --- /dev/null +++ b/include/linux/tegra-soc.h @@ -0,0 +1,22 @@ +/* + * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef __LINUX_TEGRA_SOC_H_ +#define __LINUX_TEGRA_SOC_H_ + +u32 tegra_read_chipid(void); + +#endif /* __LINUX_TEGRA_SOC_H_ */ -- cgit v1.2.3 From 89572c77cdffdf24f8fec50d3e38db6a18c04dbe Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 11 Jan 2013 13:16:21 +0530 Subject: ARM: tegra: move tegra_cpu_car.h to linux/clk/tegra.h tegra_cpu_car_ops struct is going to be accessed from drivers/clk/tegra. Move the tegra_cpu_car_ops to include/linux/clk/tegra.h. Signed-off-by: Prashant Gaikwad Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/clock.c | 2 +- arch/arm/mach-tegra/cpuidle-tegra30.c | 2 +- arch/arm/mach-tegra/hotplug.c | 2 +- arch/arm/mach-tegra/platsmp.c | 2 +- arch/arm/mach-tegra/pm.c | 2 +- arch/arm/mach-tegra/tegra20_clocks.c | 2 +- arch/arm/mach-tegra/tegra20_clocks_data.c | 2 +- arch/arm/mach-tegra/tegra30_clocks.c | 2 +- arch/arm/mach-tegra/tegra30_clocks_data.c | 2 +- arch/arm/mach-tegra/tegra_cpu_car.h | 124 ------------------------------ include/linux/clk/tegra.h | 124 ++++++++++++++++++++++++++++++ 11 files changed, 133 insertions(+), 133 deletions(-) delete mode 100644 arch/arm/mach-tegra/tegra_cpu_car.h create mode 100644 include/linux/clk/tegra.h (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c index 867bf8bf5561..8c0ff061f8cf 100644 --- a/arch/arm/mach-tegra/clock.c +++ b/arch/arm/mach-tegra/clock.c @@ -26,10 +26,10 @@ #include #include #include +#include #include "board.h" #include "clock.h" -#include "tegra_cpu_car.h" /* Global data of Tegra CPU CAR ops */ struct tegra_cpu_car_ops *tegra_cpu_car_ops; diff --git a/arch/arm/mach-tegra/cpuidle-tegra30.c b/arch/arm/mach-tegra/cpuidle-tegra30.c index 82530bd9b8c2..8b50cf4ddd6f 100644 --- a/arch/arm/mach-tegra/cpuidle-tegra30.c +++ b/arch/arm/mach-tegra/cpuidle-tegra30.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -32,7 +33,6 @@ #include "pm.h" #include "sleep.h" -#include "tegra_cpu_car.h" #ifdef CONFIG_PM_SLEEP static int tegra30_idle_lp2(struct cpuidle_device *dev, diff --git a/arch/arm/mach-tegra/hotplug.c b/arch/arm/mach-tegra/hotplug.c index 6a27de4001ee..a599f6e36dea 100644 --- a/arch/arm/mach-tegra/hotplug.c +++ b/arch/arm/mach-tegra/hotplug.c @@ -10,12 +10,12 @@ */ #include #include +#include #include #include #include "sleep.h" -#include "tegra_cpu_car.h" static void (*tegra_hotplug_shutdown)(void); diff --git a/arch/arm/mach-tegra/platsmp.c b/arch/arm/mach-tegra/platsmp.c index 68670304d9bc..3ec7fc487857 100644 --- a/arch/arm/mach-tegra/platsmp.c +++ b/arch/arm/mach-tegra/platsmp.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include @@ -30,7 +31,6 @@ #include "fuse.h" #include "flowctrl.h" #include "reset.h" -#include "tegra_cpu_car.h" #include "common.h" #include "iomap.h" diff --git a/arch/arm/mach-tegra/pm.c b/arch/arm/mach-tegra/pm.c index 498d70b33775..abfe9b93cc0c 100644 --- a/arch/arm/mach-tegra/pm.c +++ b/arch/arm/mach-tegra/pm.c @@ -24,6 +24,7 @@ #include #include #include +#include #include #include @@ -36,7 +37,6 @@ #include "reset.h" #include "flowctrl.h" #include "sleep.h" -#include "tegra_cpu_car.h" #define TEGRA_POWER_CPU_PWRREQ_OE (1 << 16) /* CPU pwr req enable */ diff --git a/arch/arm/mach-tegra/tegra20_clocks.c b/arch/arm/mach-tegra/tegra20_clocks.c index 4eb6bc81a87b..1a80ff65e5fc 100644 --- a/arch/arm/mach-tegra/tegra20_clocks.c +++ b/arch/arm/mach-tegra/tegra20_clocks.c @@ -26,12 +26,12 @@ #include #include #include +#include #include "clock.h" #include "fuse.h" #include "iomap.h" #include "tegra2_emc.h" -#include "tegra_cpu_car.h" #define RST_DEVICES 0x004 #define RST_DEVICES_SET 0x300 diff --git a/arch/arm/mach-tegra/tegra20_clocks_data.c b/arch/arm/mach-tegra/tegra20_clocks_data.c index a23a0734e352..022cdaef7ca5 100644 --- a/arch/arm/mach-tegra/tegra20_clocks_data.c +++ b/arch/arm/mach-tegra/tegra20_clocks_data.c @@ -26,12 +26,12 @@ #include #include #include +#include #include "clock.h" #include "fuse.h" #include "tegra2_emc.h" #include "tegra20_clocks.h" -#include "tegra_cpu_car.h" /* Clock definitions */ diff --git a/arch/arm/mach-tegra/tegra30_clocks.c b/arch/arm/mach-tegra/tegra30_clocks.c index d7147779f8ea..4330787fe5cb 100644 --- a/arch/arm/mach-tegra/tegra30_clocks.c +++ b/arch/arm/mach-tegra/tegra30_clocks.c @@ -28,6 +28,7 @@ #include #include #include +#include #include @@ -36,7 +37,6 @@ #include "clock.h" #include "fuse.h" #include "iomap.h" -#include "tegra_cpu_car.h" #define USE_PLL_LOCK_BITS 0 diff --git a/arch/arm/mach-tegra/tegra30_clocks_data.c b/arch/arm/mach-tegra/tegra30_clocks_data.c index 741d264d5ecb..9bfaa490cff6 100644 --- a/arch/arm/mach-tegra/tegra30_clocks_data.c +++ b/arch/arm/mach-tegra/tegra30_clocks_data.c @@ -28,11 +28,11 @@ #include #include #include +#include #include "clock.h" #include "fuse.h" #include "tegra30_clocks.h" -#include "tegra_cpu_car.h" #define DEFINE_CLK_TEGRA(_name, _rate, _ops, _flags, \ _parent_names, _parents, _parent) \ diff --git a/arch/arm/mach-tegra/tegra_cpu_car.h b/arch/arm/mach-tegra/tegra_cpu_car.h deleted file mode 100644 index 9764d31032b7..000000000000 --- a/arch/arm/mach-tegra/tegra_cpu_car.h +++ /dev/null @@ -1,124 +0,0 @@ -/* - * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -#ifndef __MACH_TEGRA_CPU_CAR_H -#define __MACH_TEGRA_CPU_CAR_H - -/* - * Tegra CPU clock and reset control ops - * - * wait_for_reset: - * keep waiting until the CPU in reset state - * put_in_reset: - * put the CPU in reset state - * out_of_reset: - * release the CPU from reset state - * enable_clock: - * CPU clock un-gate - * disable_clock: - * CPU clock gate - * rail_off_ready: - * CPU is ready for rail off - * suspend: - * save the clock settings when CPU go into low-power state - * resume: - * restore the clock settings when CPU exit low-power state - */ -struct tegra_cpu_car_ops { - void (*wait_for_reset)(u32 cpu); - void (*put_in_reset)(u32 cpu); - void (*out_of_reset)(u32 cpu); - void (*enable_clock)(u32 cpu); - void (*disable_clock)(u32 cpu); -#ifdef CONFIG_PM_SLEEP - bool (*rail_off_ready)(void); - void (*suspend)(void); - void (*resume)(void); -#endif -}; - -extern struct tegra_cpu_car_ops *tegra_cpu_car_ops; - -static inline void tegra_wait_cpu_in_reset(u32 cpu) -{ - if (WARN_ON(!tegra_cpu_car_ops->wait_for_reset)) - return; - - tegra_cpu_car_ops->wait_for_reset(cpu); -} - -static inline void tegra_put_cpu_in_reset(u32 cpu) -{ - if (WARN_ON(!tegra_cpu_car_ops->put_in_reset)) - return; - - tegra_cpu_car_ops->put_in_reset(cpu); -} - -static inline void tegra_cpu_out_of_reset(u32 cpu) -{ - if (WARN_ON(!tegra_cpu_car_ops->out_of_reset)) - return; - - tegra_cpu_car_ops->out_of_reset(cpu); -} - -static inline void tegra_enable_cpu_clock(u32 cpu) -{ - if (WARN_ON(!tegra_cpu_car_ops->enable_clock)) - return; - - tegra_cpu_car_ops->enable_clock(cpu); -} - -static inline void tegra_disable_cpu_clock(u32 cpu) -{ - if (WARN_ON(!tegra_cpu_car_ops->disable_clock)) - return; - - tegra_cpu_car_ops->disable_clock(cpu); -} - -#ifdef CONFIG_PM_SLEEP -static inline bool tegra_cpu_rail_off_ready(void) -{ - if (WARN_ON(!tegra_cpu_car_ops->rail_off_ready)) - return false; - - return tegra_cpu_car_ops->rail_off_ready(); -} - -static inline void tegra_cpu_clock_suspend(void) -{ - if (WARN_ON(!tegra_cpu_car_ops->suspend)) - return; - - tegra_cpu_car_ops->suspend(); -} - -static inline void tegra_cpu_clock_resume(void) -{ - if (WARN_ON(!tegra_cpu_car_ops->resume)) - return; - - tegra_cpu_car_ops->resume(); -} -#endif - -void tegra20_cpu_car_ops_init(void); -void tegra30_cpu_car_ops_init(void); - -#endif /* __MACH_TEGRA_CPU_CAR_H */ diff --git a/include/linux/clk/tegra.h b/include/linux/clk/tegra.h new file mode 100644 index 000000000000..0977f2a24757 --- /dev/null +++ b/include/linux/clk/tegra.h @@ -0,0 +1,124 @@ +/* + * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License + * along with this program. If not, see . + */ + +#ifndef __LINUX_CLK_TEGRA_H_ +#define __LINUX_CLK_TEGRA_H_ + +/* + * Tegra CPU clock and reset control ops + * + * wait_for_reset: + * keep waiting until the CPU in reset state + * put_in_reset: + * put the CPU in reset state + * out_of_reset: + * release the CPU from reset state + * enable_clock: + * CPU clock un-gate + * disable_clock: + * CPU clock gate + * rail_off_ready: + * CPU is ready for rail off + * suspend: + * save the clock settings when CPU go into low-power state + * resume: + * restore the clock settings when CPU exit low-power state + */ +struct tegra_cpu_car_ops { + void (*wait_for_reset)(u32 cpu); + void (*put_in_reset)(u32 cpu); + void (*out_of_reset)(u32 cpu); + void (*enable_clock)(u32 cpu); + void (*disable_clock)(u32 cpu); +#ifdef CONFIG_PM_SLEEP + bool (*rail_off_ready)(void); + void (*suspend)(void); + void (*resume)(void); +#endif +}; + +extern struct tegra_cpu_car_ops *tegra_cpu_car_ops; + +static inline void tegra_wait_cpu_in_reset(u32 cpu) +{ + if (WARN_ON(!tegra_cpu_car_ops->wait_for_reset)) + return; + + tegra_cpu_car_ops->wait_for_reset(cpu); +} + +static inline void tegra_put_cpu_in_reset(u32 cpu) +{ + if (WARN_ON(!tegra_cpu_car_ops->put_in_reset)) + return; + + tegra_cpu_car_ops->put_in_reset(cpu); +} + +static inline void tegra_cpu_out_of_reset(u32 cpu) +{ + if (WARN_ON(!tegra_cpu_car_ops->out_of_reset)) + return; + + tegra_cpu_car_ops->out_of_reset(cpu); +} + +static inline void tegra_enable_cpu_clock(u32 cpu) +{ + if (WARN_ON(!tegra_cpu_car_ops->enable_clock)) + return; + + tegra_cpu_car_ops->enable_clock(cpu); +} + +static inline void tegra_disable_cpu_clock(u32 cpu) +{ + if (WARN_ON(!tegra_cpu_car_ops->disable_clock)) + return; + + tegra_cpu_car_ops->disable_clock(cpu); +} + +#ifdef CONFIG_PM_SLEEP +static inline bool tegra_cpu_rail_off_ready(void) +{ + if (WARN_ON(!tegra_cpu_car_ops->rail_off_ready)) + return false; + + return tegra_cpu_car_ops->rail_off_ready(); +} + +static inline void tegra_cpu_clock_suspend(void) +{ + if (WARN_ON(!tegra_cpu_car_ops->suspend)) + return; + + tegra_cpu_car_ops->suspend(); +} + +static inline void tegra_cpu_clock_resume(void) +{ + if (WARN_ON(!tegra_cpu_car_ops->resume)) + return; + + tegra_cpu_car_ops->resume(); +} +#endif + +void tegra20_cpu_car_ops_init(void); +void tegra30_cpu_car_ops_init(void); + +#endif /* __LINUX_CLK_TEGRA_H_ */ -- cgit v1.2.3 From 270f8ce3122b12f4224f7c72806ebf05e23835a6 Mon Sep 17 00:00:00 2001 From: Stephen Warren Date: Fri, 11 Jan 2013 13:16:22 +0530 Subject: ARM: tegra: define Tegra20 CAR binding The Tegra20 CAR (Clock And Reset) Controller controls most aspects of most clocks within Tegra20. The device tree binding models this as a single monolithic clock provider, which exports many clocks. This reduces the number of nodes needed in device tree to represent these clocks. This binding is only useful for Tegra20; the set of clocks that exists on Tegra30 is sufficiently different to merit its own binding. Signed-off-by: Stephen Warren Acked-by: Simon Glass [pgaikwad: Added mux clk ids and sorted CAR node] Signed-off-by: Prashant Gaikwad Signed-off-by: Stephen Warren --- .../bindings/clock/nvidia,tegra20-car.txt | 205 +++++++++++++++++++++ arch/arm/boot/dts/tegra20.dtsi | 6 + 2 files changed, 211 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt (limited to 'arch/arm') diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt new file mode 100644 index 000000000000..0921fac73528 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/nvidia,tegra20-car.txt @@ -0,0 +1,205 @@ +NVIDIA Tegra20 Clock And Reset Controller + +This binding uses the common clock binding: +Documentation/devicetree/bindings/clock/clock-bindings.txt + +The CAR (Clock And Reset) Controller on Tegra is the HW module responsible +for muxing and gating Tegra's clocks, and setting their rates. + +Required properties : +- compatible : Should be "nvidia,tegra20-car" +- reg : Should contain CAR registers location and length +- clocks : Should contain phandle and clock specifiers for two clocks: + the 32 KHz "32k_in", and the board-specific oscillator "osc". +- #clock-cells : Should be 1. + In clock consumers, this cell represents the clock ID exposed by the CAR. + + The first 96 clocks are numbered to match the bits in the CAR's CLK_OUT_ENB + registers. These IDs often match those in the CAR's RST_DEVICES registers, + but not in all cases. Some bits in CLK_OUT_ENB affect multiple clocks. In + this case, those clocks are assigned IDs above 95 in order to highlight + this issue. Implementations that interpret these clock IDs as bit values + within the CLK_OUT_ENB or RST_DEVICES registers should be careful to + explicitly handle these special cases. + + The balance of the clocks controlled by the CAR are assigned IDs of 96 and + above. + + 0 cpu + 1 unassigned + 2 unassigned + 3 ac97 + 4 rtc + 5 tmr + 6 uart1 + 7 unassigned (register bit affects uart2 and vfir) + 8 gpio + 9 sdmmc2 + 10 unassigned (register bit affects spdif_in and spdif_out) + 11 i2s1 + 12 i2c1 + 13 ndflash + 14 sdmmc1 + 15 sdmmc4 + 16 twc + 17 pwm + 18 i2s2 + 19 epp + 20 unassigned (register bit affects vi and vi_sensor) + 21 2d + 22 usbd + 23 isp + 24 3d + 25 ide + 26 disp2 + 27 disp1 + 28 host1x + 29 vcp + 30 unassigned + 31 cache2 + + 32 mem + 33 ahbdma + 34 apbdma + 35 unassigned + 36 kbc + 37 stat_mon + 38 pmc + 39 fuse + 40 kfuse + 41 sbc1 + 42 snor + 43 spi1 + 44 sbc2 + 45 xio + 46 sbc3 + 47 dvc + 48 dsi + 49 unassigned (register bit affects tvo and cve) + 50 mipi + 51 hdmi + 52 csi + 53 tvdac + 54 i2c2 + 55 uart3 + 56 unassigned + 57 emc + 58 usb2 + 59 usb3 + 60 mpe + 61 vde + 62 bsea + 63 bsev + + 64 speedo + 65 uart4 + 66 uart5 + 67 i2c3 + 68 sbc4 + 69 sdmmc3 + 70 pcie + 71 owr + 72 afi + 73 csite + 74 unassigned + 75 avpucq + 76 la + 77 unassigned + 78 unassigned + 79 unassigned + 80 unassigned + 81 unassigned + 82 unassigned + 83 unassigned + 84 irama + 85 iramb + 86 iramc + 87 iramd + 88 cram2 + 89 audio_2x a/k/a audio_2x_sync_clk + 90 clk_d + 91 unassigned + 92 sus + 93 cdev1 + 94 cdev2 + 95 unassigned + + 96 uart2 + 97 vfir + 98 spdif_in + 99 spdif_out + 100 vi + 101 vi_sensor + 102 tvo + 103 cve + 104 osc + 105 clk_32k a/k/a clk_s + 106 clk_m + 107 sclk + 108 cclk + 109 hclk + 110 pclk + 111 blink + 112 pll_a + 113 pll_a_out0 + 114 pll_c + 115 pll_c_out1 + 116 pll_d + 117 pll_d_out0 + 118 pll_e + 119 pll_m + 120 pll_m_out1 + 121 pll_p + 122 pll_p_out1 + 123 pll_p_out2 + 124 pll_p_out3 + 125 pll_p_out4 + 126 pll_s + 127 pll_u + 128 pll_x + 129 cop a/k/a avp + 130 audio a/k/a audio_sync_clk + 131 pll_ref + 132 twd + +Example SoC include file: + +/ { + tegra_car: clock { + compatible = "nvidia,tegra20-car"; + reg = <0x60006000 0x1000>; + #clock-cells = <1>; + }; + + usb@c5004000 { + clocks = <&tegra_car 58>; /* usb2 */ + }; +}; + +Example board file: + +/ { + clocks { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <0>; + + osc: clock@0 { + compatible = "fixed-clock"; + reg = <0>; + #clock-cells = <0>; + clock-frequency = <12000000>; + }; + + clk_32k: clock@1 { + compatible = "fixed-clock"; + reg = <1>; + #clock-cells = <0>; + clock-frequency = <32768>; + }; + }; + + &tegra_car { + clocks = <&clk_32k> <&osc>; + }; +}; diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index b8effa1cbda7..5b104f1d5003 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -123,6 +123,12 @@ 0 42 0x04>; }; + tegra_car: clock { + compatible = "nvidia,tegra20-car"; + reg = <0x60006000 0x1000>; + #clock-cells = <1>; + }; + apbdma: dma { compatible = "nvidia,tegra20-apbdma"; reg = <0x6000a000 0x1200>; -- cgit v1.2.3 From 9598566721fe7524cca575975ea7e8ea2e27a71b Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 11 Jan 2013 13:16:23 +0530 Subject: ARM: tegra: define Tegra30 CAR binding The device tree binding models Tegra30 CAR (Clock And Reset) as a single monolithic clock provider. Signed-off-by: Prashant Gaikwad [swarren: fixed typo in binding doc] Signed-off-by: Stephen Warren --- .../bindings/clock/nvidia,tegra30-car.txt | 262 +++++++++++++++++++++ arch/arm/boot/dts/tegra30.dtsi | 6 + 2 files changed, 268 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt (limited to 'arch/arm') diff --git a/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt b/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt new file mode 100644 index 000000000000..f3da3be5fcad --- /dev/null +++ b/Documentation/devicetree/bindings/clock/nvidia,tegra30-car.txt @@ -0,0 +1,262 @@ +NVIDIA Tegra30 Clock And Reset Controller + +This binding uses the common clock binding: +Documentation/devicetree/bindings/clock/clock-bindings.txt + +The CAR (Clock And Reset) Controller on Tegra is the HW module responsible +for muxing and gating Tegra's clocks, and setting their rates. + +Required properties : +- compatible : Should be "nvidia,tegra30-car" +- reg : Should contain CAR registers location and length +- clocks : Should contain phandle and clock specifiers for two clocks: + the 32 KHz "32k_in", and the board-specific oscillator "osc". +- #clock-cells : Should be 1. + In clock consumers, this cell represents the clock ID exposed by the CAR. + + The first 130 clocks are numbered to match the bits in the CAR's CLK_OUT_ENB + registers. These IDs often match those in the CAR's RST_DEVICES registers, + but not in all cases. Some bits in CLK_OUT_ENB affect multiple clocks. In + this case, those clocks are assigned IDs above 160 in order to highlight + this issue. Implementations that interpret these clock IDs as bit values + within the CLK_OUT_ENB or RST_DEVICES registers should be careful to + explicitly handle these special cases. + + The balance of the clocks controlled by the CAR are assigned IDs of 160 and + above. + + 0 cpu + 1 unassigned + 2 unassigned + 3 unassigned + 4 rtc + 5 timer + 6 uarta + 7 unassigned (register bit affects uartb and vfir) + 8 gpio + 9 sdmmc2 + 10 unassigned (register bit affects spdif_in and spdif_out) + 11 i2s1 + 12 i2c1 + 13 ndflash + 14 sdmmc1 + 15 sdmmc4 + 16 unassigned + 17 pwm + 18 i2s2 + 19 epp + 20 unassigned (register bit affects vi and vi_sensor) + 21 2d + 22 usbd + 23 isp + 24 3d + 25 unassigned + 26 disp2 + 27 disp1 + 28 host1x + 29 vcp + 30 i2s0 + 31 cop_cache + + 32 mc + 33 ahbdma + 34 apbdma + 35 unassigned + 36 kbc + 37 statmon + 38 pmc + 39 unassigned (register bit affects fuse and fuse_burn) + 40 kfuse + 41 sbc1 + 42 nor + 43 unassigned + 44 sbc2 + 45 unassigned + 46 sbc3 + 47 i2c5 + 48 dsia + 49 unassigned (register bit affects cve and tvo) + 50 mipi + 51 hdmi + 52 csi + 53 tvdac + 54 i2c2 + 55 uartc + 56 unassigned + 57 emc + 58 usb2 + 59 usb3 + 60 mpe + 61 vde + 62 bsea + 63 bsev + + 64 speedo + 65 uartd + 66 uarte + 67 i2c3 + 68 sbc4 + 69 sdmmc3 + 70 pcie + 71 owr + 72 afi + 73 csite + 74 pciex + 75 avpucq + 76 la + 77 unassigned + 78 unassigned + 79 dtv + 80 ndspeed + 81 i2cslow + 82 dsib + 83 unassigned + 84 irama + 85 iramb + 86 iramc + 87 iramd + 88 cram2 + 89 unassigned + 90 audio_2x a/k/a audio_2x_sync_clk + 91 unassigned + 92 csus + 93 cdev2 + 94 cdev1 + 95 unassigned + + 96 cpu_g + 97 cpu_lp + 98 3d2 + 99 mselect + 100 tsensor + 101 i2s3 + 102 i2s4 + 103 i2c4 + 104 sbc5 + 105 sbc6 + 106 d_audio + 107 apbif + 108 dam0 + 109 dam1 + 110 dam2 + 111 hda2codec_2x + 112 atomics + 113 audio0_2x + 114 audio1_2x + 115 audio2_2x + 116 audio3_2x + 117 audio4_2x + 118 audio5_2x + 119 actmon + 120 extern1 + 121 extern2 + 122 extern3 + 123 sata_oob + 124 sata + 125 hda + 127 se + 128 hda2hdmi + 129 sata_cold + + 160 uartb + 161 vfir + 162 spdif_in + 163 spdif_out + 164 vi + 165 vi_sensor + 166 fuse + 167 fuse_burn + 168 cve + 169 tvo + + 170 clk_32k + 171 clk_m + 172 clk_m_div2 + 173 clk_m_div4 + 174 pll_ref + 175 pll_c + 176 pll_c_out1 + 177 pll_m + 178 pll_m_out1 + 179 pll_p + 180 pll_p_out1 + 181 pll_p_out2 + 182 pll_p_out3 + 183 pll_p_out4 + 184 pll_a + 185 pll_a_out0 + 186 pll_d + 187 pll_d_out0 + 188 pll_d2 + 189 pll_d2_out0 + 190 pll_u + 191 pll_x + 192 pll_x_out0 + 193 pll_e + 194 spdif_in_sync + 195 i2s0_sync + 196 i2s1_sync + 197 i2s2_sync + 198 i2s3_sync + 199 i2s4_sync + 200 vimclk + 201 audio0 + 202 audio1 + 203 audio2 + 204 audio3 + 205 audio4 + 206 audio5 + 207 clk_out_1 (extern1) + 208 clk_out_2 (extern2) + 209 clk_out_3 (extern3) + 210 sclk + 211 blink + 212 cclk_g + 213 cclk_lp + 214 twd + 215 cml0 + 216 cml1 + 217 hclk + 218 pclk + +Example SoC include file: + +/ { + tegra_car: clock { + compatible = "nvidia,tegra30-car"; + reg = <0x60006000 0x1000>; + #clock-cells = <1>; + }; + + usb@c5004000 { + clocks = <&tegra_car 58>; /* usb2 */ + }; +}; + +Example board file: + +/ { + clocks { + compatible = "simple-bus"; + #address-cells = <1>; + #size-cells = <0>; + + osc: clock@0 { + compatible = "fixed-clock"; + reg = <0>; + #clock-cells = <0>; + clock-frequency = <12000000>; + }; + + clk_32k: clock@1 { + compatible = "fixed-clock"; + reg = <1>; + #clock-cells = <0>; + clock-frequency = <32768>; + }; + }; + + &tegra_car { + clocks = <&clk_32k> <&osc>; + }; +}; diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi index 529fdb82dfdb..6765646c2248 100644 --- a/arch/arm/boot/dts/tegra30.dtsi +++ b/arch/arm/boot/dts/tegra30.dtsi @@ -125,6 +125,12 @@ 0 122 0x04>; }; + tegra_car: clock { + compatible = "nvidia,tegra30-car"; + reg = <0x60006000 0x1000>; + #clock-cells = <1>; + }; + apbdma: dma { compatible = "nvidia,tegra30-apbdma", "nvidia,tegra20-apbdma"; reg = <0x6000a000 0x1400>; -- cgit v1.2.3 From 61fd290d213e25d5a119b8ca25644001ed9f8f2d Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 11 Jan 2013 13:16:26 +0530 Subject: ARM: tegra: migrate to new clock code Migrate Tegra clock support to drivers/clk/tegra, this involves moving: 1. definition of tegra_cpu_car_ops to clk.c 2. definition of reset functions to clk-peripheral.c 3. change parent of cpu clock. 4. Remove legacy clock initialization. 5. Initialize clocks using DT. 6. Remove all instance of mach/clk.h Signed-off-by: Prashant Gaikwad [swarren: use to_clk_periph_gate().] Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/board-dt-tegra20.c | 30 ----------------------- arch/arm/mach-tegra/board-dt-tegra30.c | 31 ------------------------ arch/arm/mach-tegra/clock.c | 19 --------------- arch/arm/mach-tegra/common.c | 44 ++-------------------------------- arch/arm/mach-tegra/cpu-tegra.c | 2 +- arch/arm/mach-tegra/include/mach/clk.h | 3 --- arch/arm/mach-tegra/pcie.c | 2 +- arch/arm/mach-tegra/powergate.c | 2 +- drivers/clk/tegra/clk-periph.c | 38 +++++++++++++++++++++++++++++ drivers/clk/tegra/clk.c | 16 +++++++++++++ drivers/dma/tegra20-apb-dma.c | 2 +- drivers/gpu/drm/tegra/dc.c | 3 +-- drivers/gpu/drm/tegra/drm.c | 1 - drivers/gpu/drm/tegra/hdmi.c | 3 +-- drivers/i2c/busses/i2c-tegra.c | 3 +-- drivers/input/keyboard/tegra-kbc.c | 2 +- drivers/spi/spi-tegra20-sflash.c | 2 +- drivers/spi/spi-tegra20-slink.c | 2 +- drivers/staging/nvec/nvec.c | 3 +-- include/linux/clk/tegra.h | 5 ++++ sound/soc/tegra/tegra30_ahub.c | 2 +- 21 files changed, 73 insertions(+), 142 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/board-dt-tegra20.c b/arch/arm/mach-tegra/board-dt-tegra20.c index e1f87dd314ef..0c11b8af3af3 100644 --- a/arch/arm/mach-tegra/board-dt-tegra20.c +++ b/arch/arm/mach-tegra/board-dt-tegra20.c @@ -42,7 +42,6 @@ #include #include "board.h" -#include "clock.h" #include "common.h" #include "iomap.h" @@ -104,37 +103,8 @@ static struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = { {} }; -static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = { - /* name parent rate enabled */ - { "uarta", "pll_p", 216000000, true }, - { "uartd", "pll_p", 216000000, true }, - { "usbd", "clk_m", 12000000, false }, - { "usb2", "clk_m", 12000000, false }, - { "usb3", "clk_m", 12000000, false }, - { "pll_a", "pll_p_out1", 56448000, true }, - { "pll_a_out0", "pll_a", 11289600, true }, - { "cdev1", NULL, 0, true }, - { "blink", "clk_32k", 32768, true }, - { "i2s1", "pll_a_out0", 11289600, false}, - { "i2s2", "pll_a_out0", 11289600, false}, - { "sdmmc1", "pll_p", 48000000, false}, - { "sdmmc3", "pll_p", 48000000, false}, - { "sdmmc4", "pll_p", 48000000, false}, - { "spi", "pll_p", 20000000, false }, - { "sbc1", "pll_p", 100000000, false }, - { "sbc2", "pll_p", 100000000, false }, - { "sbc3", "pll_p", 100000000, false }, - { "sbc4", "pll_p", 100000000, false }, - { "host1x", "pll_c", 150000000, false }, - { "disp1", "pll_p", 600000000, false }, - { "disp2", "pll_p", 600000000, false }, - { NULL, NULL, 0, 0}, -}; - static void __init tegra_dt_init(void) { - tegra_clk_init_from_table(tegra_dt_clk_init_table); - /* * Finished with the static registrations now; fill in the missing * devices diff --git a/arch/arm/mach-tegra/board-dt-tegra30.c b/arch/arm/mach-tegra/board-dt-tegra30.c index cfe5fc02be77..92f6014d22a1 100644 --- a/arch/arm/mach-tegra/board-dt-tegra30.c +++ b/arch/arm/mach-tegra/board-dt-tegra30.c @@ -35,7 +35,6 @@ #include #include "board.h" -#include "clock.h" #include "common.h" #include "iomap.h" @@ -67,38 +66,8 @@ static struct of_dev_auxdata tegra30_auxdata_lookup[] __initdata = { {} }; -static __initdata struct tegra_clk_init_table tegra_dt_clk_init_table[] = { - /* name parent rate enabled */ - { "uarta", "pll_p", 408000000, true }, - { "pll_a", "pll_p_out1", 564480000, true }, - { "pll_a_out0", "pll_a", 11289600, true }, - { "extern1", "pll_a_out0", 0, true }, - { "clk_out_1", "extern1", 0, true }, - { "blink", "clk_32k", 32768, true }, - { "i2s0", "pll_a_out0", 11289600, false}, - { "i2s1", "pll_a_out0", 11289600, false}, - { "i2s2", "pll_a_out0", 11289600, false}, - { "i2s3", "pll_a_out0", 11289600, false}, - { "i2s4", "pll_a_out0", 11289600, false}, - { "sdmmc1", "pll_p", 48000000, false}, - { "sdmmc3", "pll_p", 48000000, false}, - { "sdmmc4", "pll_p", 48000000, false}, - { "sbc1", "pll_p", 100000000, false}, - { "sbc2", "pll_p", 100000000, false}, - { "sbc3", "pll_p", 100000000, false}, - { "sbc4", "pll_p", 100000000, false}, - { "sbc5", "pll_p", 100000000, false}, - { "sbc6", "pll_p", 100000000, false}, - { "host1x", "pll_c", 150000000, false}, - { "disp1", "pll_p", 600000000, false}, - { "disp2", "pll_p", 600000000, false}, - { NULL, NULL, 0, 0}, -}; - static void __init tegra30_dt_init(void) { - tegra_clk_init_from_table(tegra_dt_clk_init_table); - of_platform_populate(NULL, of_default_bus_match_table, tegra30_auxdata_lookup, NULL); } diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c index 8c0ff061f8cf..baa0c5b008f1 100644 --- a/arch/arm/mach-tegra/clock.c +++ b/arch/arm/mach-tegra/clock.c @@ -31,9 +31,6 @@ #include "board.h" #include "clock.h" -/* Global data of Tegra CPU CAR ops */ -struct tegra_cpu_car_ops *tegra_cpu_car_ops; - /* * Locking: * @@ -131,22 +128,6 @@ void tegra_clk_init_from_table(struct tegra_clk_init_table *table) tegra_clk_init_one_from_table(table); } -void tegra_periph_reset_deassert(struct clk *c) -{ - struct clk_tegra *clk = to_clk_tegra(__clk_get_hw(c)); - BUG_ON(!clk->reset); - clk->reset(__clk_get_hw(c), false); -} -EXPORT_SYMBOL(tegra_periph_reset_deassert); - -void tegra_periph_reset_assert(struct clk *c) -{ - struct clk_tegra *clk = to_clk_tegra(__clk_get_hw(c)); - BUG_ON(!clk->reset); - clk->reset(__clk_get_hw(c), true); -} -EXPORT_SYMBOL(tegra_periph_reset_assert); - /* Several extended clock configuration bits (e.g., clock routing, clock * phase control) are included in PLL and peripheral clock source * registers. */ diff --git a/arch/arm/mach-tegra/common.c b/arch/arm/mach-tegra/common.c index 3efe80b2af28..87dd69ccdf8e 100644 --- a/arch/arm/mach-tegra/common.c +++ b/arch/arm/mach-tegra/common.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include @@ -29,7 +30,6 @@ #include #include "board.h" -#include "clock.h" #include "common.h" #include "fuse.h" #include "iomap.h" @@ -65,6 +65,7 @@ static const struct of_device_id tegra_dt_irq_match[] __initconst = { void __init tegra_dt_init_irq(void) { + tegra_clocks_init(); tegra_init_irq(); of_irq_init(tegra_dt_irq_match); } @@ -80,43 +81,6 @@ void tegra_assert_system_reset(char mode, const char *cmd) writel_relaxed(reg, reset); } -#ifdef CONFIG_ARCH_TEGRA_2x_SOC -static __initdata struct tegra_clk_init_table tegra20_clk_init_table[] = { - /* name parent rate enabled */ - { "clk_m", NULL, 0, true }, - { "pll_p", "clk_m", 216000000, true }, - { "pll_p_out1", "pll_p", 28800000, true }, - { "pll_p_out2", "pll_p", 48000000, true }, - { "pll_p_out3", "pll_p", 72000000, true }, - { "pll_p_out4", "pll_p", 24000000, true }, - { "pll_c", "clk_m", 600000000, true }, - { "pll_c_out1", "pll_c", 120000000, true }, - { "sclk", "pll_c_out1", 120000000, true }, - { "hclk", "sclk", 120000000, true }, - { "pclk", "hclk", 60000000, true }, - { "csite", NULL, 0, true }, - { "emc", NULL, 0, true }, - { "cpu", NULL, 0, true }, - { NULL, NULL, 0, 0}, -}; -#endif - -#ifdef CONFIG_ARCH_TEGRA_3x_SOC -static __initdata struct tegra_clk_init_table tegra30_clk_init_table[] = { - /* name parent rate enabled */ - { "clk_m", NULL, 0, true }, - { "pll_p", "pll_ref", 408000000, true }, - { "pll_p_out1", "pll_p", 9600000, true }, - { "pll_p_out4", "pll_p", 102000000, true }, - { "sclk", "pll_p_out4", 102000000, true }, - { "hclk", "sclk", 102000000, true }, - { "pclk", "hclk", 51000000, true }, - { "csite", NULL, 0, true }, - { NULL, NULL, 0, 0}, -}; -#endif - - static void __init tegra_init_cache(void) { #ifdef CONFIG_CACHE_L2X0 @@ -141,8 +105,6 @@ void __init tegra20_init_early(void) tegra_cpu_reset_handler_init(); tegra_apb_io_init(); tegra_init_fuse(); - tegra2_init_clocks(); - tegra_clk_init_from_table(tegra20_clk_init_table); tegra_init_cache(); tegra_pmc_init(); tegra_powergate_init(); @@ -155,8 +117,6 @@ void __init tegra30_init_early(void) tegra_cpu_reset_handler_init(); tegra_apb_io_init(); tegra_init_fuse(); - tegra30_init_clocks(); - tegra_clk_init_from_table(tegra30_clk_init_table); tegra_init_cache(); tegra_pmc_init(); tegra_powergate_init(); diff --git a/arch/arm/mach-tegra/cpu-tegra.c b/arch/arm/mach-tegra/cpu-tegra.c index 85d4a23bba03..ebffed67e2f5 100644 --- a/arch/arm/mach-tegra/cpu-tegra.c +++ b/arch/arm/mach-tegra/cpu-tegra.c @@ -266,7 +266,7 @@ static int __init tegra_cpufreq_init(void) if (IS_ERR(pll_x_clk)) return PTR_ERR(pll_x_clk); - pll_p_clk = clk_get_sys(NULL, "pll_p"); + pll_p_clk = clk_get_sys(NULL, "pll_p_cclk"); if (IS_ERR(pll_p_clk)) return PTR_ERR(pll_p_clk); diff --git a/arch/arm/mach-tegra/include/mach/clk.h b/arch/arm/mach-tegra/include/mach/clk.h index 95f3a547c770..85bbf10a7d0d 100644 --- a/arch/arm/mach-tegra/include/mach/clk.h +++ b/arch/arm/mach-tegra/include/mach/clk.h @@ -31,9 +31,6 @@ enum tegra_clk_ex_param { TEGRA_CLK_PLLD_MIPI_MUX_SEL, }; -void tegra_periph_reset_deassert(struct clk *c); -void tegra_periph_reset_assert(struct clk *c); - #ifndef CONFIG_COMMON_CLK unsigned long clk_get_rate_all_locked(struct clk *c); #endif diff --git a/arch/arm/mach-tegra/pcie.c b/arch/arm/mach-tegra/pcie.c index bffcd643d7a3..b60165f1ca02 100644 --- a/arch/arm/mach-tegra/pcie.c +++ b/arch/arm/mach-tegra/pcie.c @@ -33,11 +33,11 @@ #include #include #include +#include #include #include -#include #include #include "board.h" diff --git a/arch/arm/mach-tegra/powergate.c b/arch/arm/mach-tegra/powergate.c index 2cc1185d902e..c6bc8f85759c 100644 --- a/arch/arm/mach-tegra/powergate.c +++ b/arch/arm/mach-tegra/powergate.c @@ -26,8 +26,8 @@ #include #include #include +#include -#include #include #include "fuse.h" diff --git a/drivers/clk/tegra/clk-periph.c b/drivers/clk/tegra/clk-periph.c index 5978e81b175b..788486e6331a 100644 --- a/drivers/clk/tegra/clk-periph.c +++ b/drivers/clk/tegra/clk-periph.c @@ -110,6 +110,44 @@ static void clk_periph_disable(struct clk_hw *hw) gate_ops->disable(gate_hw); } +void tegra_periph_reset_deassert(struct clk *c) +{ + struct clk_hw *hw = __clk_get_hw(c); + struct tegra_clk_periph *periph = to_clk_periph(hw); + struct tegra_clk_periph_gate *gate; + + if (periph->magic != TEGRA_CLK_PERIPH_MAGIC) { + gate = to_clk_periph_gate(hw); + if (gate->magic != TEGRA_CLK_PERIPH_GATE_MAGIC) { + WARN_ON(1); + return; + } + } else { + gate = &periph->gate; + } + + tegra_periph_reset(gate, 0); +} + +void tegra_periph_reset_assert(struct clk *c) +{ + struct clk_hw *hw = __clk_get_hw(c); + struct tegra_clk_periph *periph = to_clk_periph(hw); + struct tegra_clk_periph_gate *gate; + + if (periph->magic != TEGRA_CLK_PERIPH_MAGIC) { + gate = to_clk_periph_gate(hw); + if (gate->magic != TEGRA_CLK_PERIPH_GATE_MAGIC) { + WARN_ON(1); + return; + } + } else { + gate = &periph->gate; + } + + tegra_periph_reset(gate, 1); +} + const struct clk_ops tegra_clk_periph_ops = { .get_parent = clk_periph_get_parent, .set_parent = clk_periph_set_parent, diff --git a/drivers/clk/tegra/clk.c b/drivers/clk/tegra/clk.c index cf023a937208..a603b9af0ad3 100644 --- a/drivers/clk/tegra/clk.c +++ b/drivers/clk/tegra/clk.c @@ -16,9 +16,14 @@ #include #include +#include +#include #include "clk.h" +/* Global data of Tegra CPU CAR ops */ +struct tegra_cpu_car_ops *tegra_cpu_car_ops; + void __init tegra_init_dup_clks(struct tegra_clk_duplicate *dup_list, struct clk *clks[], int clk_max) { @@ -67,3 +72,14 @@ void __init tegra_init_from_table(struct tegra_clk_init_table *tbl, } } } + +static const struct of_device_id tegra_dt_clk_match[] = { + { .compatible = "nvidia,tegra20-car", .data = tegra20_clock_init }, + { .compatible = "nvidia,tegra30-car", .data = tegra30_clock_init }, + { } +}; + +void __init tegra_clocks_init(void) +{ + of_clk_init(tegra_dt_clk_match); +} diff --git a/drivers/dma/tegra20-apb-dma.c b/drivers/dma/tegra20-apb-dma.c index c39e61bc8172..afc9b89e20f4 100644 --- a/drivers/dma/tegra20-apb-dma.c +++ b/drivers/dma/tegra20-apb-dma.c @@ -31,8 +31,8 @@ #include #include #include +#include -#include #include "dmaengine.h" #define TEGRA_APBDMA_GENERAL 0x0 diff --git a/drivers/gpu/drm/tegra/dc.c b/drivers/gpu/drm/tegra/dc.c index 656b2e3334a6..56813f967c8f 100644 --- a/drivers/gpu/drm/tegra/dc.c +++ b/drivers/gpu/drm/tegra/dc.c @@ -12,8 +12,7 @@ #include #include #include - -#include +#include #include "drm.h" #include "dc.h" diff --git a/drivers/gpu/drm/tegra/drm.c b/drivers/gpu/drm/tegra/drm.c index 3a503c9e4686..d980dc75788c 100644 --- a/drivers/gpu/drm/tegra/drm.c +++ b/drivers/gpu/drm/tegra/drm.c @@ -11,7 +11,6 @@ #include #include -#include #include #include diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index e060c7e6434d..92ad276cc5e0 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -14,8 +14,7 @@ #include #include #include - -#include +#include #include "hdmi.h" #include "drm.h" diff --git a/drivers/i2c/busses/i2c-tegra.c b/drivers/i2c/busses/i2c-tegra.c index 7b38877ffec1..c7aca35e38fd 100644 --- a/drivers/i2c/busses/i2c-tegra.c +++ b/drivers/i2c/busses/i2c-tegra.c @@ -29,11 +29,10 @@ #include #include #include +#include #include -#include - #define TEGRA_I2C_TIMEOUT (msecs_to_jiffies(1000)) #define BYTES_PER_FIFO_WORD 4 diff --git a/drivers/input/keyboard/tegra-kbc.c b/drivers/input/keyboard/tegra-kbc.c index c76f96872d31..54ac1dc7d477 100644 --- a/drivers/input/keyboard/tegra-kbc.c +++ b/drivers/input/keyboard/tegra-kbc.c @@ -30,7 +30,7 @@ #include #include #include -#include +#include #define KBC_MAX_DEBOUNCE_CNT 0x3ffu diff --git a/drivers/spi/spi-tegra20-sflash.c b/drivers/spi/spi-tegra20-sflash.c index 448a8cc71df3..02feaa51a0fa 100644 --- a/drivers/spi/spi-tegra20-sflash.c +++ b/drivers/spi/spi-tegra20-sflash.c @@ -34,7 +34,7 @@ #include #include #include -#include +#include #define SPI_COMMAND 0x000 #define SPI_GO BIT(30) diff --git a/drivers/spi/spi-tegra20-slink.c b/drivers/spi/spi-tegra20-slink.c index 651167f2e0af..fa208a5cc612 100644 --- a/drivers/spi/spi-tegra20-slink.c +++ b/drivers/spi/spi-tegra20-slink.c @@ -35,7 +35,7 @@ #include #include #include -#include +#include #define SLINK_COMMAND 0x000 #define SLINK_BIT_LENGTH(x) (((x) & 0x1f) << 0) diff --git a/drivers/staging/nvec/nvec.c b/drivers/staging/nvec/nvec.c index 2830946860d1..d51615b19797 100644 --- a/drivers/staging/nvec/nvec.c +++ b/drivers/staging/nvec/nvec.c @@ -37,8 +37,7 @@ #include #include #include - -#include +#include #include "nvec.h" diff --git a/include/linux/clk/tegra.h b/include/linux/clk/tegra.h index 0977f2a24757..a7e5a3999099 100644 --- a/include/linux/clk/tegra.h +++ b/include/linux/clk/tegra.h @@ -17,6 +17,8 @@ #ifndef __LINUX_CLK_TEGRA_H_ #define __LINUX_CLK_TEGRA_H_ +#include + /* * Tegra CPU clock and reset control ops * @@ -120,5 +122,8 @@ static inline void tegra_cpu_clock_resume(void) void tegra20_cpu_car_ops_init(void); void tegra30_cpu_car_ops_init(void); +void tegra_periph_reset_deassert(struct clk *c); +void tegra_periph_reset_assert(struct clk *c); +void tegra_clocks_init(void); #endif /* __LINUX_CLK_TEGRA_H_ */ diff --git a/sound/soc/tegra/tegra30_ahub.c b/sound/soc/tegra/tegra30_ahub.c index f354dc390a0b..bb31c4123a7b 100644 --- a/sound/soc/tegra/tegra30_ahub.c +++ b/sound/soc/tegra/tegra30_ahub.c @@ -25,7 +25,7 @@ #include #include #include -#include +#include #include #include "tegra30_ahub.h" -- cgit v1.2.3 From 52dec4c9eacc339dbf1b2ab549248df1cc6eb030 Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 11 Jan 2013 13:16:27 +0530 Subject: ARM: tegra: remove legacy clock code Remove all legacy clock code from mach-tegra. Signed-off-by: Prashant Gaikwad Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/Makefile | 5 - arch/arm/mach-tegra/clock.c | 147 -- arch/arm/mach-tegra/clock.h | 153 -- arch/arm/mach-tegra/include/mach/clk.h | 41 - arch/arm/mach-tegra/tegra20_clocks.c | 1623 ------------------- arch/arm/mach-tegra/tegra20_clocks.h | 42 - arch/arm/mach-tegra/tegra20_clocks_data.c | 1143 ------------- arch/arm/mach-tegra/tegra30_clocks.c | 2506 ----------------------------- arch/arm/mach-tegra/tegra30_clocks.h | 54 - arch/arm/mach-tegra/tegra30_clocks_data.c | 1425 ---------------- include/linux/clk/tegra.h | 2 - 11 files changed, 7141 deletions(-) delete mode 100644 arch/arm/mach-tegra/clock.c delete mode 100644 arch/arm/mach-tegra/clock.h delete mode 100644 arch/arm/mach-tegra/include/mach/clk.h delete mode 100644 arch/arm/mach-tegra/tegra20_clocks.c delete mode 100644 arch/arm/mach-tegra/tegra20_clocks.h delete mode 100644 arch/arm/mach-tegra/tegra20_clocks_data.c delete mode 100644 arch/arm/mach-tegra/tegra30_clocks.c delete mode 100644 arch/arm/mach-tegra/tegra30_clocks.h delete mode 100644 arch/arm/mach-tegra/tegra30_clocks_data.c (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/Makefile b/arch/arm/mach-tegra/Makefile index f0520961bafe..6018a05e808c 100644 --- a/arch/arm/mach-tegra/Makefile +++ b/arch/arm/mach-tegra/Makefile @@ -1,7 +1,6 @@ obj-y += common.o obj-y += io.o obj-y += irq.o -obj-y += clock.o obj-y += fuse.o obj-y += pmc.o obj-y += flowctrl.o @@ -12,16 +11,12 @@ obj-y += reset.o obj-y += reset-handler.o obj-y += sleep.o obj-$(CONFIG_CPU_IDLE) += cpuidle.o -obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_clocks.o -obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_clocks_data.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra20_speedo.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += tegra2_emc.o obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += sleep-tegra20.o ifeq ($(CONFIG_CPU_IDLE),y) obj-$(CONFIG_ARCH_TEGRA_2x_SOC) += cpuidle-tegra20.o endif -obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_clocks.o -obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_clocks_data.o obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += tegra30_speedo.o obj-$(CONFIG_ARCH_TEGRA_3x_SOC) += sleep-tegra30.o ifeq ($(CONFIG_CPU_IDLE),y) diff --git a/arch/arm/mach-tegra/clock.c b/arch/arm/mach-tegra/clock.c deleted file mode 100644 index baa0c5b008f1..000000000000 --- a/arch/arm/mach-tegra/clock.c +++ /dev/null @@ -1,147 +0,0 @@ -/* - * - * Copyright (C) 2010 Google, Inc. - * Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved. - * - * Author: - * Colin Cross - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "board.h" -#include "clock.h" - -/* - * Locking: - * - * An additional mutex, clock_list_lock, is used to protect the list of all - * clocks. - * - */ -static DEFINE_MUTEX(clock_list_lock); -static LIST_HEAD(clocks); - -void tegra_clk_add(struct clk *clk) -{ - struct clk_tegra *c = to_clk_tegra(__clk_get_hw(clk)); - - mutex_lock(&clock_list_lock); - list_add(&c->node, &clocks); - mutex_unlock(&clock_list_lock); -} - -struct clk *tegra_get_clock_by_name(const char *name) -{ - struct clk_tegra *c; - struct clk *ret = NULL; - mutex_lock(&clock_list_lock); - list_for_each_entry(c, &clocks, node) { - if (strcmp(__clk_get_name(c->hw.clk), name) == 0) { - ret = c->hw.clk; - break; - } - } - mutex_unlock(&clock_list_lock); - return ret; -} - -static int tegra_clk_init_one_from_table(struct tegra_clk_init_table *table) -{ - struct clk *c; - struct clk *p; - struct clk *parent; - - int ret = 0; - - c = tegra_get_clock_by_name(table->name); - - if (!c) { - pr_warn("Unable to initialize clock %s\n", - table->name); - return -ENODEV; - } - - parent = clk_get_parent(c); - - if (table->parent) { - p = tegra_get_clock_by_name(table->parent); - if (!p) { - pr_warn("Unable to find parent %s of clock %s\n", - table->parent, table->name); - return -ENODEV; - } - - if (parent != p) { - ret = clk_set_parent(c, p); - if (ret) { - pr_warn("Unable to set parent %s of clock %s: %d\n", - table->parent, table->name, ret); - return -EINVAL; - } - } - } - - if (table->rate && table->rate != clk_get_rate(c)) { - ret = clk_set_rate(c, table->rate); - if (ret) { - pr_warn("Unable to set clock %s to rate %lu: %d\n", - table->name, table->rate, ret); - return -EINVAL; - } - } - - if (table->enabled) { - ret = clk_prepare_enable(c); - if (ret) { - pr_warn("Unable to enable clock %s: %d\n", - table->name, ret); - return -EINVAL; - } - } - - return 0; -} - -void tegra_clk_init_from_table(struct tegra_clk_init_table *table) -{ - for (; table->name; table++) - tegra_clk_init_one_from_table(table); -} - -/* Several extended clock configuration bits (e.g., clock routing, clock - * phase control) are included in PLL and peripheral clock source - * registers. */ -int tegra_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting) -{ - int ret = 0; - struct clk_tegra *clk = to_clk_tegra(__clk_get_hw(c)); - - if (!clk->clk_cfg_ex) { - ret = -ENOSYS; - goto out; - } - ret = clk->clk_cfg_ex(__clk_get_hw(c), p, setting); - -out: - return ret; -} diff --git a/arch/arm/mach-tegra/clock.h b/arch/arm/mach-tegra/clock.h deleted file mode 100644 index 2aa37f5c44c0..000000000000 --- a/arch/arm/mach-tegra/clock.h +++ /dev/null @@ -1,153 +0,0 @@ -/* - * arch/arm/mach-tegra/include/mach/clock.h - * - * Copyright (C) 2010 Google, Inc. - * Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved. - * - * Author: - * Colin Cross - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#ifndef __MACH_TEGRA_CLOCK_H -#define __MACH_TEGRA_CLOCK_H - -#include -#include -#include - -#include - -#define DIV_BUS (1 << 0) -#define DIV_U71 (1 << 1) -#define DIV_U71_FIXED (1 << 2) -#define DIV_2 (1 << 3) -#define DIV_U16 (1 << 4) -#define PLL_FIXED (1 << 5) -#define PLL_HAS_CPCON (1 << 6) -#define MUX (1 << 7) -#define PLLD (1 << 8) -#define PERIPH_NO_RESET (1 << 9) -#define PERIPH_NO_ENB (1 << 10) -#define PERIPH_EMC_ENB (1 << 11) -#define PERIPH_MANUAL_RESET (1 << 12) -#define PLL_ALT_MISC_REG (1 << 13) -#define PLLU (1 << 14) -#define PLLX (1 << 15) -#define MUX_PWM (1 << 16) -#define MUX8 (1 << 17) -#define DIV_U71_UART (1 << 18) -#define MUX_CLK_OUT (1 << 19) -#define PLLM (1 << 20) -#define DIV_U71_INT (1 << 21) -#define DIV_U71_IDLE (1 << 22) -#define ENABLE_ON_INIT (1 << 28) -#define PERIPH_ON_APB (1 << 29) - -struct clk_tegra; -#define to_clk_tegra(_hw) container_of(_hw, struct clk_tegra, hw) - -struct clk_mux_sel { - struct clk *input; - u32 value; -}; - -struct clk_pll_freq_table { - unsigned long input_rate; - unsigned long output_rate; - u16 n; - u16 m; - u8 p; - u8 cpcon; -}; - -enum clk_state { - UNINITIALIZED = 0, - ON, - OFF, -}; - -struct clk_tegra { - /* node for master clocks list */ - struct list_head node; /* node for list of all clocks */ - struct clk_lookup lookup; - struct clk_hw hw; - - bool set; - unsigned long fixed_rate; - unsigned long max_rate; - unsigned long min_rate; - u32 flags; - const char *name; - - enum clk_state state; - u32 div; - u32 mul; - - u32 reg; - u32 reg_shift; - - struct list_head shared_bus_list; - - union { - struct { - unsigned int clk_num; - } periph; - struct { - unsigned long input_min; - unsigned long input_max; - unsigned long cf_min; - unsigned long cf_max; - unsigned long vco_min; - unsigned long vco_max; - const struct clk_pll_freq_table *freq_table; - int lock_delay; - unsigned long fixed_rate; - } pll; - struct { - u32 sel; - u32 reg_mask; - } mux; - struct { - struct clk *main; - struct clk *backup; - } cpu; - struct { - struct list_head node; - bool enabled; - unsigned long rate; - } shared_bus_user; - } u; - - void (*reset)(struct clk_hw *, bool); - int (*clk_cfg_ex)(struct clk_hw *, enum tegra_clk_ex_param, u32); -}; - -struct clk_duplicate { - const char *name; - struct clk_lookup lookup; -}; - -struct tegra_clk_init_table { - const char *name; - const char *parent; - unsigned long rate; - bool enabled; -}; - -void tegra_clk_add(struct clk *c); -void tegra2_init_clocks(void); -void tegra30_init_clocks(void); -struct clk *tegra_get_clock_by_name(const char *name); -void tegra_clk_init_from_table(struct tegra_clk_init_table *table); - -#endif diff --git a/arch/arm/mach-tegra/include/mach/clk.h b/arch/arm/mach-tegra/include/mach/clk.h deleted file mode 100644 index 85bbf10a7d0d..000000000000 --- a/arch/arm/mach-tegra/include/mach/clk.h +++ /dev/null @@ -1,41 +0,0 @@ -/* - * arch/arm/mach-tegra/include/mach/clk.h - * - * Copyright (C) 2010 Google, Inc. - * - * Author: - * Erik Gilling - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#ifndef __MACH_CLK_H -#define __MACH_CLK_H - -struct clk; - -enum tegra_clk_ex_param { - TEGRA_CLK_VI_INP_SEL, - TEGRA_CLK_DTV_INVERT, - TEGRA_CLK_NAND_PAD_DIV2_ENB, - TEGRA_CLK_PLLD_CSI_OUT_ENB, - TEGRA_CLK_PLLD_DSI_OUT_ENB, - TEGRA_CLK_PLLD_MIPI_MUX_SEL, -}; - -#ifndef CONFIG_COMMON_CLK -unsigned long clk_get_rate_all_locked(struct clk *c); -#endif - -void tegra2_sdmmc_tap_delay(struct clk *c, int delay); -int tegra_clk_cfg_ex(struct clk *c, enum tegra_clk_ex_param p, u32 setting); - -#endif diff --git a/arch/arm/mach-tegra/tegra20_clocks.c b/arch/arm/mach-tegra/tegra20_clocks.c deleted file mode 100644 index 1a80ff65e5fc..000000000000 --- a/arch/arm/mach-tegra/tegra20_clocks.c +++ /dev/null @@ -1,1623 +0,0 @@ -/* - * arch/arm/mach-tegra/tegra20_clocks.c - * - * Copyright (C) 2010 Google, Inc. - * Copyright (c) 2010-2012 NVIDIA CORPORATION. All rights reserved. - * - * Author: - * Colin Cross - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "clock.h" -#include "fuse.h" -#include "iomap.h" -#include "tegra2_emc.h" - -#define RST_DEVICES 0x004 -#define RST_DEVICES_SET 0x300 -#define RST_DEVICES_CLR 0x304 -#define RST_DEVICES_NUM 3 - -#define CLK_OUT_ENB 0x010 -#define CLK_OUT_ENB_SET 0x320 -#define CLK_OUT_ENB_CLR 0x324 -#define CLK_OUT_ENB_NUM 3 - -#define CLK_MASK_ARM 0x44 -#define MISC_CLK_ENB 0x48 - -#define OSC_CTRL 0x50 -#define OSC_CTRL_OSC_FREQ_MASK (3<<30) -#define OSC_CTRL_OSC_FREQ_13MHZ (0<<30) -#define OSC_CTRL_OSC_FREQ_19_2MHZ (1<<30) -#define OSC_CTRL_OSC_FREQ_12MHZ (2<<30) -#define OSC_CTRL_OSC_FREQ_26MHZ (3<<30) -#define OSC_CTRL_MASK (0x3f2 | OSC_CTRL_OSC_FREQ_MASK) - -#define OSC_FREQ_DET 0x58 -#define OSC_FREQ_DET_TRIG (1<<31) - -#define OSC_FREQ_DET_STATUS 0x5C -#define OSC_FREQ_DET_BUSY (1<<31) -#define OSC_FREQ_DET_CNT_MASK 0xFFFF - -#define PERIPH_CLK_SOURCE_I2S1 0x100 -#define PERIPH_CLK_SOURCE_EMC 0x19c -#define PERIPH_CLK_SOURCE_OSC 0x1fc -#define PERIPH_CLK_SOURCE_NUM \ - ((PERIPH_CLK_SOURCE_OSC - PERIPH_CLK_SOURCE_I2S1) / 4) - -#define PERIPH_CLK_SOURCE_MASK (3<<30) -#define PERIPH_CLK_SOURCE_SHIFT 30 -#define PERIPH_CLK_SOURCE_PWM_MASK (7<<28) -#define PERIPH_CLK_SOURCE_PWM_SHIFT 28 -#define PERIPH_CLK_SOURCE_ENABLE (1<<28) -#define PERIPH_CLK_SOURCE_DIVU71_MASK 0xFF -#define PERIPH_CLK_SOURCE_DIVU16_MASK 0xFFFF -#define PERIPH_CLK_SOURCE_DIV_SHIFT 0 - -#define SDMMC_CLK_INT_FB_SEL (1 << 23) -#define SDMMC_CLK_INT_FB_DLY_SHIFT 16 -#define SDMMC_CLK_INT_FB_DLY_MASK (0xF << SDMMC_CLK_INT_FB_DLY_SHIFT) - -#define PLL_BASE 0x0 -#define PLL_BASE_BYPASS (1<<31) -#define PLL_BASE_ENABLE (1<<30) -#define PLL_BASE_REF_ENABLE (1<<29) -#define PLL_BASE_OVERRIDE (1<<28) -#define PLL_BASE_DIVP_MASK (0x7<<20) -#define PLL_BASE_DIVP_SHIFT 20 -#define PLL_BASE_DIVN_MASK (0x3FF<<8) -#define PLL_BASE_DIVN_SHIFT 8 -#define PLL_BASE_DIVM_MASK (0x1F) -#define PLL_BASE_DIVM_SHIFT 0 - -#define PLL_OUT_RATIO_MASK (0xFF<<8) -#define PLL_OUT_RATIO_SHIFT 8 -#define PLL_OUT_OVERRIDE (1<<2) -#define PLL_OUT_CLKEN (1<<1) -#define PLL_OUT_RESET_DISABLE (1<<0) - -#define PLL_MISC(c) (((c)->flags & PLL_ALT_MISC_REG) ? 0x4 : 0xc) - -#define PLL_MISC_DCCON_SHIFT 20 -#define PLL_MISC_CPCON_SHIFT 8 -#define PLL_MISC_CPCON_MASK (0xF<u.periph.clk_num / 32) * 4) -#define PERIPH_CLK_TO_ENB_SET_REG(c) ((c->u.periph.clk_num / 32) * 8) -#define PERIPH_CLK_TO_ENB_BIT(c) (1 << (c->u.periph.clk_num % 32)) - -#define SUPER_CLK_MUX 0x00 -#define SUPER_STATE_SHIFT 28 -#define SUPER_STATE_MASK (0xF << SUPER_STATE_SHIFT) -#define SUPER_STATE_STANDBY (0x0 << SUPER_STATE_SHIFT) -#define SUPER_STATE_IDLE (0x1 << SUPER_STATE_SHIFT) -#define SUPER_STATE_RUN (0x2 << SUPER_STATE_SHIFT) -#define SUPER_STATE_IRQ (0x3 << SUPER_STATE_SHIFT) -#define SUPER_STATE_FIQ (0x4 << SUPER_STATE_SHIFT) -#define SUPER_SOURCE_MASK 0xF -#define SUPER_FIQ_SOURCE_SHIFT 12 -#define SUPER_IRQ_SOURCE_SHIFT 8 -#define SUPER_RUN_SOURCE_SHIFT 4 -#define SUPER_IDLE_SOURCE_SHIFT 0 - -#define SUPER_CLK_DIVIDER 0x04 - -#define BUS_CLK_DISABLE (1<<3) -#define BUS_CLK_DIV_MASK 0x3 - -#define PMC_CTRL 0x0 - #define PMC_CTRL_BLINK_ENB (1 << 7) - -#define PMC_DPD_PADS_ORIDE 0x1c - #define PMC_DPD_PADS_ORIDE_BLINK_ENB (1 << 20) - -#define PMC_BLINK_TIMER_DATA_ON_SHIFT 0 -#define PMC_BLINK_TIMER_DATA_ON_MASK 0x7fff -#define PMC_BLINK_TIMER_ENB (1 << 15) -#define PMC_BLINK_TIMER_DATA_OFF_SHIFT 16 -#define PMC_BLINK_TIMER_DATA_OFF_MASK 0xffff - -/* Tegra CPU clock and reset control regs */ -#define TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX 0x4c -#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET 0x340 -#define TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR 0x344 - -#define CPU_CLOCK(cpu) (0x1 << (8 + cpu)) -#define CPU_RESET(cpu) (0x1111ul << (cpu)) - -static void __iomem *reg_clk_base = IO_ADDRESS(TEGRA_CLK_RESET_BASE); -static void __iomem *reg_pmc_base = IO_ADDRESS(TEGRA_PMC_BASE); - -/* - * Some clocks share a register with other clocks. Any clock op that - * non-atomically modifies a register used by another clock must lock - * clock_register_lock first. - */ -static DEFINE_SPINLOCK(clock_register_lock); - -/* - * Some peripheral clocks share an enable bit, so refcount the enable bits - * in registers CLK_ENABLE_L, CLK_ENABLE_H, and CLK_ENABLE_U - */ -static int tegra_periph_clk_enable_refcount[3 * 32]; - -#define clk_writel(value, reg) \ - __raw_writel(value, reg_clk_base + (reg)) -#define clk_readl(reg) \ - __raw_readl(reg_clk_base + (reg)) -#define pmc_writel(value, reg) \ - __raw_writel(value, reg_pmc_base + (reg)) -#define pmc_readl(reg) \ - __raw_readl(reg_pmc_base + (reg)) - -static unsigned long clk_measure_input_freq(void) -{ - u32 clock_autodetect; - clk_writel(OSC_FREQ_DET_TRIG | 1, OSC_FREQ_DET); - do {} while (clk_readl(OSC_FREQ_DET_STATUS) & OSC_FREQ_DET_BUSY); - clock_autodetect = clk_readl(OSC_FREQ_DET_STATUS); - if (clock_autodetect >= 732 - 3 && clock_autodetect <= 732 + 3) { - return 12000000; - } else if (clock_autodetect >= 794 - 3 && clock_autodetect <= 794 + 3) { - return 13000000; - } else if (clock_autodetect >= 1172 - 3 && clock_autodetect <= 1172 + 3) { - return 19200000; - } else if (clock_autodetect >= 1587 - 3 && clock_autodetect <= 1587 + 3) { - return 26000000; - } else { - pr_err("%s: Unexpected clock autodetect value %d", - __func__, clock_autodetect); - BUG(); - return 0; - } -} - -static int clk_div71_get_divider(unsigned long parent_rate, unsigned long rate) -{ - s64 divider_u71 = parent_rate * 2; - divider_u71 += rate - 1; - do_div(divider_u71, rate); - - if (divider_u71 - 2 < 0) - return 0; - - if (divider_u71 - 2 > 255) - return -EINVAL; - - return divider_u71 - 2; -} - -static int clk_div16_get_divider(unsigned long parent_rate, unsigned long rate) -{ - s64 divider_u16; - - divider_u16 = parent_rate; - divider_u16 += rate - 1; - do_div(divider_u16, rate); - - if (divider_u16 - 1 < 0) - return 0; - - if (divider_u16 - 1 > 0xFFFF) - return -EINVAL; - - return divider_u16 - 1; -} - -static unsigned long tegra_clk_fixed_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - return to_clk_tegra(hw)->fixed_rate; -} - -struct clk_ops tegra_clk_32k_ops = { - .recalc_rate = tegra_clk_fixed_recalc_rate, -}; - -/* clk_m functions */ -static unsigned long tegra20_clk_m_recalc_rate(struct clk_hw *hw, - unsigned long prate) -{ - if (!to_clk_tegra(hw)->fixed_rate) - to_clk_tegra(hw)->fixed_rate = clk_measure_input_freq(); - return to_clk_tegra(hw)->fixed_rate; -} - -static void tegra20_clk_m_init(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 osc_ctrl = clk_readl(OSC_CTRL); - u32 auto_clock_control = osc_ctrl & ~OSC_CTRL_OSC_FREQ_MASK; - - switch (c->fixed_rate) { - case 12000000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_12MHZ; - break; - case 13000000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_13MHZ; - break; - case 19200000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_19_2MHZ; - break; - case 26000000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_26MHZ; - break; - default: - BUG(); - } - clk_writel(auto_clock_control, OSC_CTRL); -} - -struct clk_ops tegra_clk_m_ops = { - .init = tegra20_clk_m_init, - .recalc_rate = tegra20_clk_m_recalc_rate, -}; - -/* super clock functions */ -/* "super clocks" on tegra have two-stage muxes and a clock skipping - * super divider. We will ignore the clock skipping divider, since we - * can't lower the voltage when using the clock skip, but we can if we - * lower the PLL frequency. - */ -static int tegra20_super_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - val = clk_readl(c->reg + SUPER_CLK_MUX); - BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && - ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); - c->state = ON; - return c->state; -} - -static int tegra20_super_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - clk_writel(0, c->reg + SUPER_CLK_DIVIDER); - return 0; -} - -static void tegra20_super_clk_disable(struct clk_hw *hw) -{ - pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); - - /* oops - don't disable the CPU clock! */ - BUG(); -} - -static u8 tegra20_super_clk_get_parent(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - int val = clk_readl(c->reg + SUPER_CLK_MUX); - int source; - int shift; - - BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && - ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); - shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? - SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; - source = (val >> shift) & SUPER_SOURCE_MASK; - return source; -} - -static int tegra20_super_clk_set_parent(struct clk_hw *hw, u8 index) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg + SUPER_CLK_MUX); - int shift; - - BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && - ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); - shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? - SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; - val &= ~(SUPER_SOURCE_MASK << shift); - val |= index << shift; - - clk_writel(val, c->reg); - - return 0; -} - -/* FIX ME: Need to switch parents to change the source PLL rate */ -static unsigned long tegra20_super_clk_recalc_rate(struct clk_hw *hw, - unsigned long prate) -{ - return prate; -} - -static long tegra20_super_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - return *prate; -} - -static int tegra20_super_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - return 0; -} - -struct clk_ops tegra_super_ops = { - .is_enabled = tegra20_super_clk_is_enabled, - .enable = tegra20_super_clk_enable, - .disable = tegra20_super_clk_disable, - .set_parent = tegra20_super_clk_set_parent, - .get_parent = tegra20_super_clk_get_parent, - .set_rate = tegra20_super_clk_set_rate, - .round_rate = tegra20_super_clk_round_rate, - .recalc_rate = tegra20_super_clk_recalc_rate, -}; - -static unsigned long tegra20_twd_clk_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = parent_rate; - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - - return rate; -} - -struct clk_ops tegra_twd_ops = { - .recalc_rate = tegra20_twd_clk_recalc_rate, -}; - -static u8 tegra20_cop_clk_get_parent(struct clk_hw *hw) -{ - return 0; -} - -struct clk_ops tegra_cop_ops = { - .get_parent = tegra20_cop_clk_get_parent, -}; - -/* virtual cop clock functions. Used to acquire the fake 'cop' clock to - * reset the COP block (i.e. AVP) */ -void tegra2_cop_clk_reset(struct clk_hw *hw, bool assert) -{ - unsigned long reg = assert ? RST_DEVICES_SET : RST_DEVICES_CLR; - - pr_debug("%s %s\n", __func__, assert ? "assert" : "deassert"); - clk_writel(1 << 1, reg); -} - -/* bus clock functions */ -static int tegra20_bus_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - - c->state = ((val >> c->reg_shift) & BUS_CLK_DISABLE) ? OFF : ON; - return c->state; -} - -static int tegra20_bus_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long flags; - u32 val; - - spin_lock_irqsave(&clock_register_lock, flags); - - val = clk_readl(c->reg); - val &= ~(BUS_CLK_DISABLE << c->reg_shift); - clk_writel(val, c->reg); - - spin_unlock_irqrestore(&clock_register_lock, flags); - - return 0; -} - -static void tegra20_bus_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long flags; - u32 val; - - spin_lock_irqsave(&clock_register_lock, flags); - - val = clk_readl(c->reg); - val |= BUS_CLK_DISABLE << c->reg_shift; - clk_writel(val, c->reg); - - spin_unlock_irqrestore(&clock_register_lock, flags); -} - -static unsigned long tegra20_bus_clk_recalc_rate(struct clk_hw *hw, - unsigned long prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - u64 rate = prate; - - c->div = ((val >> c->reg_shift) & BUS_CLK_DIV_MASK) + 1; - c->mul = 1; - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - return rate; -} - -static int tegra20_bus_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - int ret = -EINVAL; - unsigned long flags; - u32 val; - int i; - - spin_lock_irqsave(&clock_register_lock, flags); - - val = clk_readl(c->reg); - for (i = 1; i <= 4; i++) { - if (rate == parent_rate / i) { - val &= ~(BUS_CLK_DIV_MASK << c->reg_shift); - val |= (i - 1) << c->reg_shift; - clk_writel(val, c->reg); - c->div = i; - c->mul = 1; - ret = 0; - break; - } - } - - spin_unlock_irqrestore(&clock_register_lock, flags); - - return ret; -} - -static long tegra20_bus_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - unsigned long parent_rate = *prate; - s64 divider; - - if (rate >= parent_rate) - return rate; - - divider = parent_rate; - divider += rate - 1; - do_div(divider, rate); - - if (divider < 0) - return divider; - - if (divider > 4) - divider = 4; - do_div(parent_rate, divider); - - return parent_rate; -} - -struct clk_ops tegra_bus_ops = { - .is_enabled = tegra20_bus_clk_is_enabled, - .enable = tegra20_bus_clk_enable, - .disable = tegra20_bus_clk_disable, - .set_rate = tegra20_bus_clk_set_rate, - .round_rate = tegra20_bus_clk_round_rate, - .recalc_rate = tegra20_bus_clk_recalc_rate, -}; - -/* Blink output functions */ -static int tegra20_blink_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - val = pmc_readl(PMC_CTRL); - c->state = (val & PMC_CTRL_BLINK_ENB) ? ON : OFF; - return c->state; -} - -static unsigned long tegra20_blink_clk_recalc_rate(struct clk_hw *hw, - unsigned long prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = prate; - u32 val; - - c->mul = 1; - val = pmc_readl(c->reg); - - if (val & PMC_BLINK_TIMER_ENB) { - unsigned int on_off; - - on_off = (val >> PMC_BLINK_TIMER_DATA_ON_SHIFT) & - PMC_BLINK_TIMER_DATA_ON_MASK; - val >>= PMC_BLINK_TIMER_DATA_OFF_SHIFT; - val &= PMC_BLINK_TIMER_DATA_OFF_MASK; - on_off += val; - /* each tick in the blink timer is 4 32KHz clocks */ - c->div = on_off * 4; - } else { - c->div = 1; - } - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - return rate; -} - -static int tegra20_blink_clk_enable(struct clk_hw *hw) -{ - u32 val; - - val = pmc_readl(PMC_DPD_PADS_ORIDE); - pmc_writel(val | PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE); - - val = pmc_readl(PMC_CTRL); - pmc_writel(val | PMC_CTRL_BLINK_ENB, PMC_CTRL); - - return 0; -} - -static void tegra20_blink_clk_disable(struct clk_hw *hw) -{ - u32 val; - - val = pmc_readl(PMC_CTRL); - pmc_writel(val & ~PMC_CTRL_BLINK_ENB, PMC_CTRL); - - val = pmc_readl(PMC_DPD_PADS_ORIDE); - pmc_writel(val & ~PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE); -} - -static int tegra20_blink_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - if (rate >= parent_rate) { - c->div = 1; - pmc_writel(0, c->reg); - } else { - unsigned int on_off; - u32 val; - - on_off = DIV_ROUND_UP(parent_rate / 8, rate); - c->div = on_off * 8; - - val = (on_off & PMC_BLINK_TIMER_DATA_ON_MASK) << - PMC_BLINK_TIMER_DATA_ON_SHIFT; - on_off &= PMC_BLINK_TIMER_DATA_OFF_MASK; - on_off <<= PMC_BLINK_TIMER_DATA_OFF_SHIFT; - val |= on_off; - val |= PMC_BLINK_TIMER_ENB; - pmc_writel(val, c->reg); - } - - return 0; -} - -static long tegra20_blink_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - int div; - int mul; - long round_rate = *prate; - - mul = 1; - - if (rate >= *prate) { - div = 1; - } else { - div = DIV_ROUND_UP(*prate / 8, rate); - div *= 8; - } - - round_rate *= mul; - round_rate += div - 1; - do_div(round_rate, div); - - return round_rate; -} - -struct clk_ops tegra_blink_clk_ops = { - .is_enabled = tegra20_blink_clk_is_enabled, - .enable = tegra20_blink_clk_enable, - .disable = tegra20_blink_clk_disable, - .set_rate = tegra20_blink_clk_set_rate, - .round_rate = tegra20_blink_clk_round_rate, - .recalc_rate = tegra20_blink_clk_recalc_rate, -}; - -/* PLL Functions */ -static int tegra20_pll_clk_wait_for_lock(struct clk_tegra *c) -{ - udelay(c->u.pll.lock_delay); - return 0; -} - -static int tegra20_pll_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg + PLL_BASE); - - c->state = (val & PLL_BASE_ENABLE) ? ON : OFF; - return c->state; -} - -static unsigned long tegra20_pll_clk_recalc_rate(struct clk_hw *hw, - unsigned long prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg + PLL_BASE); - u64 rate = prate; - - if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) { - const struct clk_pll_freq_table *sel; - for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { - if (sel->input_rate == prate && - sel->output_rate == c->u.pll.fixed_rate) { - c->mul = sel->n; - c->div = sel->m * sel->p; - break; - } - } - pr_err("Clock %s has unknown fixed frequency\n", - __clk_get_name(hw->clk)); - BUG(); - } else if (val & PLL_BASE_BYPASS) { - c->mul = 1; - c->div = 1; - } else { - c->mul = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT; - c->div = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT; - if (c->flags & PLLU) - c->div *= (val & PLLU_BASE_POST_DIV) ? 1 : 2; - else - c->div *= (val & PLL_BASE_DIVP_MASK) ? 2 : 1; - } - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - return rate; -} - -static int tegra20_pll_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); - - val = clk_readl(c->reg + PLL_BASE); - val &= ~PLL_BASE_BYPASS; - val |= PLL_BASE_ENABLE; - clk_writel(val, c->reg + PLL_BASE); - - tegra20_pll_clk_wait_for_lock(c); - - return 0; -} - -static void tegra20_pll_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); - - val = clk_readl(c->reg); - val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE); - clk_writel(val, c->reg); -} - -static int tegra20_pll_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long input_rate = parent_rate; - const struct clk_pll_freq_table *sel; - u32 val; - - pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate); - - if (c->flags & PLL_FIXED) { - int ret = 0; - if (rate != c->u.pll.fixed_rate) { - pr_err("%s: Can not change %s fixed rate %lu to %lu\n", - __func__, __clk_get_name(hw->clk), - c->u.pll.fixed_rate, rate); - ret = -EINVAL; - } - return ret; - } - - for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { - if (sel->input_rate == input_rate && sel->output_rate == rate) { - c->mul = sel->n; - c->div = sel->m * sel->p; - - val = clk_readl(c->reg + PLL_BASE); - if (c->flags & PLL_FIXED) - val |= PLL_BASE_OVERRIDE; - val &= ~(PLL_BASE_DIVP_MASK | PLL_BASE_DIVN_MASK | - PLL_BASE_DIVM_MASK); - val |= (sel->m << PLL_BASE_DIVM_SHIFT) | - (sel->n << PLL_BASE_DIVN_SHIFT); - BUG_ON(sel->p < 1 || sel->p > 2); - if (c->flags & PLLU) { - if (sel->p == 1) - val |= PLLU_BASE_POST_DIV; - } else { - if (sel->p == 2) - val |= 1 << PLL_BASE_DIVP_SHIFT; - } - clk_writel(val, c->reg + PLL_BASE); - - if (c->flags & PLL_HAS_CPCON) { - val = clk_readl(c->reg + PLL_MISC(c)); - val &= ~PLL_MISC_CPCON_MASK; - val |= sel->cpcon << PLL_MISC_CPCON_SHIFT; - clk_writel(val, c->reg + PLL_MISC(c)); - } - - if (c->state == ON) - tegra20_pll_clk_enable(hw); - return 0; - } - } - return -EINVAL; -} - -static long tegra20_pll_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - const struct clk_pll_freq_table *sel; - unsigned long input_rate = *prate; - u64 output_rate = *prate; - int mul; - int div; - - if (c->flags & PLL_FIXED) - return c->u.pll.fixed_rate; - - for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) - if (sel->input_rate == input_rate && sel->output_rate == rate) { - mul = sel->n; - div = sel->m * sel->p; - break; - } - - if (sel->input_rate == 0) - return -EINVAL; - - output_rate *= mul; - output_rate += div - 1; /* round up */ - do_div(output_rate, div); - - return output_rate; -} - -struct clk_ops tegra_pll_ops = { - .is_enabled = tegra20_pll_clk_is_enabled, - .enable = tegra20_pll_clk_enable, - .disable = tegra20_pll_clk_disable, - .set_rate = tegra20_pll_clk_set_rate, - .recalc_rate = tegra20_pll_clk_recalc_rate, - .round_rate = tegra20_pll_clk_round_rate, -}; - -static void tegra20_pllx_clk_init(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - if (tegra_sku_id == 7) - c->max_rate = 750000000; -} - -struct clk_ops tegra_pllx_ops = { - .init = tegra20_pllx_clk_init, - .is_enabled = tegra20_pll_clk_is_enabled, - .enable = tegra20_pll_clk_enable, - .disable = tegra20_pll_clk_disable, - .set_rate = tegra20_pll_clk_set_rate, - .recalc_rate = tegra20_pll_clk_recalc_rate, - .round_rate = tegra20_pll_clk_round_rate, -}; - -static int tegra20_plle_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); - - mdelay(1); - - val = clk_readl(c->reg + PLL_BASE); - if (!(val & PLLE_MISC_READY)) - return -EBUSY; - - val = clk_readl(c->reg + PLL_BASE); - val |= PLL_BASE_ENABLE | PLL_BASE_BYPASS; - clk_writel(val, c->reg + PLL_BASE); - - return 0; -} - -struct clk_ops tegra_plle_ops = { - .is_enabled = tegra20_pll_clk_is_enabled, - .enable = tegra20_plle_clk_enable, - .set_rate = tegra20_pll_clk_set_rate, - .recalc_rate = tegra20_pll_clk_recalc_rate, - .round_rate = tegra20_pll_clk_round_rate, -}; - -/* Clock divider ops */ -static int tegra20_pll_div_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - - val >>= c->reg_shift; - c->state = (val & PLL_OUT_CLKEN) ? ON : OFF; - if (!(val & PLL_OUT_RESET_DISABLE)) - c->state = OFF; - return c->state; -} - -static unsigned long tegra20_pll_div_clk_recalc_rate(struct clk_hw *hw, - unsigned long prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = prate; - u32 val = clk_readl(c->reg); - u32 divu71; - - val >>= c->reg_shift; - - if (c->flags & DIV_U71) { - divu71 = (val & PLL_OUT_RATIO_MASK) >> PLL_OUT_RATIO_SHIFT; - c->div = (divu71 + 2); - c->mul = 2; - } else if (c->flags & DIV_2) { - c->div = 2; - c->mul = 1; - } else { - c->div = 1; - c->mul = 1; - } - - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - - return rate; -} - -static int tegra20_pll_div_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long flags; - u32 new_val; - u32 val; - - pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk)); - - if (c->flags & DIV_U71) { - spin_lock_irqsave(&clock_register_lock, flags); - val = clk_readl(c->reg); - new_val = val >> c->reg_shift; - new_val &= 0xFFFF; - - new_val |= PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE; - - val &= ~(0xFFFF << c->reg_shift); - val |= new_val << c->reg_shift; - clk_writel(val, c->reg); - spin_unlock_irqrestore(&clock_register_lock, flags); - return 0; - } else if (c->flags & DIV_2) { - BUG_ON(!(c->flags & PLLD)); - spin_lock_irqsave(&clock_register_lock, flags); - val = clk_readl(c->reg); - val &= ~PLLD_MISC_DIV_RST; - clk_writel(val, c->reg); - spin_unlock_irqrestore(&clock_register_lock, flags); - return 0; - } - return -EINVAL; -} - -static void tegra20_pll_div_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long flags; - u32 new_val; - u32 val; - - pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk)); - - if (c->flags & DIV_U71) { - spin_lock_irqsave(&clock_register_lock, flags); - val = clk_readl(c->reg); - new_val = val >> c->reg_shift; - new_val &= 0xFFFF; - - new_val &= ~(PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE); - - val &= ~(0xFFFF << c->reg_shift); - val |= new_val << c->reg_shift; - clk_writel(val, c->reg); - spin_unlock_irqrestore(&clock_register_lock, flags); - } else if (c->flags & DIV_2) { - BUG_ON(!(c->flags & PLLD)); - spin_lock_irqsave(&clock_register_lock, flags); - val = clk_readl(c->reg); - val |= PLLD_MISC_DIV_RST; - clk_writel(val, c->reg); - spin_unlock_irqrestore(&clock_register_lock, flags); - } -} - -static int tegra20_pll_div_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long flags; - int divider_u71; - u32 new_val; - u32 val; - - pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate); - - if (c->flags & DIV_U71) { - divider_u71 = clk_div71_get_divider(parent_rate, rate); - if (divider_u71 >= 0) { - spin_lock_irqsave(&clock_register_lock, flags); - val = clk_readl(c->reg); - new_val = val >> c->reg_shift; - new_val &= 0xFFFF; - if (c->flags & DIV_U71_FIXED) - new_val |= PLL_OUT_OVERRIDE; - new_val &= ~PLL_OUT_RATIO_MASK; - new_val |= divider_u71 << PLL_OUT_RATIO_SHIFT; - - val &= ~(0xFFFF << c->reg_shift); - val |= new_val << c->reg_shift; - clk_writel(val, c->reg); - c->div = divider_u71 + 2; - c->mul = 2; - spin_unlock_irqrestore(&clock_register_lock, flags); - return 0; - } - } else if (c->flags & DIV_2) { - if (parent_rate == rate * 2) - return 0; - } - return -EINVAL; -} - -static long tegra20_pll_div_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long parent_rate = *prate; - int divider; - - pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate); - - if (c->flags & DIV_U71) { - divider = clk_div71_get_divider(parent_rate, rate); - if (divider < 0) - return divider; - return DIV_ROUND_UP(parent_rate * 2, divider + 2); - } else if (c->flags & DIV_2) { - return DIV_ROUND_UP(parent_rate, 2); - } - return -EINVAL; -} - -struct clk_ops tegra_pll_div_ops = { - .is_enabled = tegra20_pll_div_clk_is_enabled, - .enable = tegra20_pll_div_clk_enable, - .disable = tegra20_pll_div_clk_disable, - .set_rate = tegra20_pll_div_clk_set_rate, - .round_rate = tegra20_pll_div_clk_round_rate, - .recalc_rate = tegra20_pll_div_clk_recalc_rate, -}; - -/* Periph clk ops */ - -static int tegra20_periph_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - c->state = ON; - - if (!c->u.periph.clk_num) - goto out; - - if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) & - PERIPH_CLK_TO_ENB_BIT(c))) - c->state = OFF; - - if (!(c->flags & PERIPH_NO_RESET)) - if (clk_readl(RST_DEVICES + PERIPH_CLK_TO_ENB_REG(c)) & - PERIPH_CLK_TO_ENB_BIT(c)) - c->state = OFF; - -out: - return c->state; -} - -static int tegra20_periph_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long flags; - u32 val; - - pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); - - if (!c->u.periph.clk_num) - return 0; - - tegra_periph_clk_enable_refcount[c->u.periph.clk_num]++; - if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 1) - return 0; - - spin_lock_irqsave(&clock_register_lock, flags); - - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - CLK_OUT_ENB_SET + PERIPH_CLK_TO_ENB_SET_REG(c)); - if (!(c->flags & PERIPH_NO_RESET) && !(c->flags & PERIPH_MANUAL_RESET)) - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - RST_DEVICES_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); - if (c->flags & PERIPH_EMC_ENB) { - /* The EMC peripheral clock has 2 extra enable bits */ - /* FIXME: Do they need to be disabled? */ - val = clk_readl(c->reg); - val |= 0x3 << 24; - clk_writel(val, c->reg); - } - - spin_unlock_irqrestore(&clock_register_lock, flags); - - return 0; -} - -static void tegra20_periph_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long flags; - - pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); - - if (!c->u.periph.clk_num) - return; - - tegra_periph_clk_enable_refcount[c->u.periph.clk_num]--; - - if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 0) - return; - - spin_lock_irqsave(&clock_register_lock, flags); - - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - CLK_OUT_ENB_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); - - spin_unlock_irqrestore(&clock_register_lock, flags); -} - -void tegra2_periph_clk_reset(struct clk_hw *hw, bool assert) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long base = assert ? RST_DEVICES_SET : RST_DEVICES_CLR; - - pr_debug("%s %s on clock %s\n", __func__, - assert ? "assert" : "deassert", __clk_get_name(hw->clk)); - - BUG_ON(!c->u.periph.clk_num); - - if (!(c->flags & PERIPH_NO_RESET)) - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - base + PERIPH_CLK_TO_ENB_SET_REG(c)); -} - -static int tegra20_periph_clk_set_parent(struct clk_hw *hw, u8 index) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - u32 mask; - u32 shift; - - pr_debug("%s: %s %d\n", __func__, __clk_get_name(hw->clk), index); - - if (c->flags & MUX_PWM) { - shift = PERIPH_CLK_SOURCE_PWM_SHIFT; - mask = PERIPH_CLK_SOURCE_PWM_MASK; - } else { - shift = PERIPH_CLK_SOURCE_SHIFT; - mask = PERIPH_CLK_SOURCE_MASK; - } - - val = clk_readl(c->reg); - val &= ~mask; - val |= (index) << shift; - - clk_writel(val, c->reg); - - return 0; -} - -static u8 tegra20_periph_clk_get_parent(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - u32 mask; - u32 shift; - - if (c->flags & MUX_PWM) { - shift = PERIPH_CLK_SOURCE_PWM_SHIFT; - mask = PERIPH_CLK_SOURCE_PWM_MASK; - } else { - shift = PERIPH_CLK_SOURCE_SHIFT; - mask = PERIPH_CLK_SOURCE_MASK; - } - - if (c->flags & MUX) - return (val & mask) >> shift; - else - return 0; -} - -static unsigned long tegra20_periph_clk_recalc_rate(struct clk_hw *hw, - unsigned long prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long rate = prate; - u32 val = clk_readl(c->reg); - - if (c->flags & DIV_U71) { - u32 divu71 = val & PERIPH_CLK_SOURCE_DIVU71_MASK; - c->div = divu71 + 2; - c->mul = 2; - } else if (c->flags & DIV_U16) { - u32 divu16 = val & PERIPH_CLK_SOURCE_DIVU16_MASK; - c->div = divu16 + 1; - c->mul = 1; - } else { - c->div = 1; - c->mul = 1; - return rate; - } - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - - return rate; -} - -static int tegra20_periph_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - int divider; - - val = clk_readl(c->reg); - - if (c->flags & DIV_U71) { - divider = clk_div71_get_divider(parent_rate, rate); - - if (divider >= 0) { - val = clk_readl(c->reg); - val &= ~PERIPH_CLK_SOURCE_DIVU71_MASK; - val |= divider; - clk_writel(val, c->reg); - c->div = divider + 2; - c->mul = 2; - return 0; - } - } else if (c->flags & DIV_U16) { - divider = clk_div16_get_divider(parent_rate, rate); - if (divider >= 0) { - val = clk_readl(c->reg); - val &= ~PERIPH_CLK_SOURCE_DIVU16_MASK; - val |= divider; - clk_writel(val, c->reg); - c->div = divider + 1; - c->mul = 1; - return 0; - } - } else if (parent_rate <= rate) { - c->div = 1; - c->mul = 1; - return 0; - } - - return -EINVAL; -} - -static long tegra20_periph_clk_round_rate(struct clk_hw *hw, - unsigned long rate, unsigned long *prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long parent_rate = __clk_get_rate(__clk_get_parent(hw->clk)); - int divider; - - pr_debug("%s: %s %lu\n", __func__, __clk_get_name(hw->clk), rate); - - if (prate) - parent_rate = *prate; - - if (c->flags & DIV_U71) { - divider = clk_div71_get_divider(parent_rate, rate); - if (divider < 0) - return divider; - - return DIV_ROUND_UP(parent_rate * 2, divider + 2); - } else if (c->flags & DIV_U16) { - divider = clk_div16_get_divider(parent_rate, rate); - if (divider < 0) - return divider; - return DIV_ROUND_UP(parent_rate, divider + 1); - } - return -EINVAL; -} - -struct clk_ops tegra_periph_clk_ops = { - .is_enabled = tegra20_periph_clk_is_enabled, - .enable = tegra20_periph_clk_enable, - .disable = tegra20_periph_clk_disable, - .set_parent = tegra20_periph_clk_set_parent, - .get_parent = tegra20_periph_clk_get_parent, - .set_rate = tegra20_periph_clk_set_rate, - .round_rate = tegra20_periph_clk_round_rate, - .recalc_rate = tegra20_periph_clk_recalc_rate, -}; - -/* External memory controller clock ops */ -static void tegra20_emc_clk_init(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - c->max_rate = __clk_get_rate(hw->clk); -} - -static long tegra20_emc_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - long emc_rate; - long clk_rate; - - /* - * The slowest entry in the EMC clock table that is at least as - * fast as rate. - */ - emc_rate = tegra_emc_round_rate(rate); - if (emc_rate < 0) - return c->max_rate; - - /* - * The fastest rate the PLL will generate that is at most the - * requested rate. - */ - clk_rate = tegra20_periph_clk_round_rate(hw, emc_rate, NULL); - - /* - * If this fails, and emc_rate > clk_rate, it's because the maximum - * rate in the EMC tables is larger than the maximum rate of the EMC - * clock. The EMC clock's max rate is the rate it was running when the - * kernel booted. Such a mismatch is probably due to using the wrong - * BCT, i.e. using a Tegra20 BCT with an EMC table written for Tegra25. - */ - WARN_ONCE(emc_rate != clk_rate, - "emc_rate %ld != clk_rate %ld", - emc_rate, clk_rate); - - return emc_rate; -} - -static int tegra20_emc_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - int ret; - - /* - * The Tegra2 memory controller has an interlock with the clock - * block that allows memory shadowed registers to be updated, - * and then transfer them to the main registers at the same - * time as the clock update without glitches. - */ - ret = tegra_emc_set_rate(rate); - if (ret < 0) - return ret; - - ret = tegra20_periph_clk_set_rate(hw, rate, parent_rate); - udelay(1); - - return ret; -} - -struct clk_ops tegra_emc_clk_ops = { - .init = tegra20_emc_clk_init, - .is_enabled = tegra20_periph_clk_is_enabled, - .enable = tegra20_periph_clk_enable, - .disable = tegra20_periph_clk_disable, - .set_parent = tegra20_periph_clk_set_parent, - .get_parent = tegra20_periph_clk_get_parent, - .set_rate = tegra20_emc_clk_set_rate, - .round_rate = tegra20_emc_clk_round_rate, - .recalc_rate = tegra20_periph_clk_recalc_rate, -}; - -/* Clock doubler ops */ -static int tegra20_clk_double_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - c->state = ON; - - if (!c->u.periph.clk_num) - goto out; - - if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) & - PERIPH_CLK_TO_ENB_BIT(c))) - c->state = OFF; - -out: - return c->state; -}; - -static unsigned long tegra20_clk_double_recalc_rate(struct clk_hw *hw, - unsigned long prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = prate; - - c->mul = 2; - c->div = 1; - - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - - return rate; -} - -static long tegra20_clk_double_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - unsigned long output_rate = *prate; - - do_div(output_rate, 2); - return output_rate; -} - -static int tegra20_clk_double_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - if (rate != 2 * parent_rate) - return -EINVAL; - return 0; -} - -struct clk_ops tegra_clk_double_ops = { - .is_enabled = tegra20_clk_double_is_enabled, - .enable = tegra20_periph_clk_enable, - .disable = tegra20_periph_clk_disable, - .set_rate = tegra20_clk_double_set_rate, - .recalc_rate = tegra20_clk_double_recalc_rate, - .round_rate = tegra20_clk_double_round_rate, -}; - -/* Audio sync clock ops */ -static int tegra20_audio_sync_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - - c->state = (val & (1<<4)) ? OFF : ON; - return c->state; -} - -static int tegra20_audio_sync_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - clk_writel(0, c->reg); - return 0; -} - -static void tegra20_audio_sync_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - clk_writel(1, c->reg); -} - -static u8 tegra20_audio_sync_clk_get_parent(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - int source; - - source = val & 0xf; - return source; -} - -static int tegra20_audio_sync_clk_set_parent(struct clk_hw *hw, u8 index) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - val = clk_readl(c->reg); - val &= ~0xf; - val |= index; - - clk_writel(val, c->reg); - - return 0; -} - -struct clk_ops tegra_audio_sync_clk_ops = { - .is_enabled = tegra20_audio_sync_clk_is_enabled, - .enable = tegra20_audio_sync_clk_enable, - .disable = tegra20_audio_sync_clk_disable, - .set_parent = tegra20_audio_sync_clk_set_parent, - .get_parent = tegra20_audio_sync_clk_get_parent, -}; - -/* cdev1 and cdev2 (dap_mclk1 and dap_mclk2) ops */ - -static int tegra20_cdev_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - /* We could un-tristate the cdev1 or cdev2 pingroup here; this is - * currently done in the pinmux code. */ - c->state = ON; - - BUG_ON(!c->u.periph.clk_num); - - if (!(clk_readl(CLK_OUT_ENB + PERIPH_CLK_TO_ENB_REG(c)) & - PERIPH_CLK_TO_ENB_BIT(c))) - c->state = OFF; - return c->state; -} - -static int tegra20_cdev_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - BUG_ON(!c->u.periph.clk_num); - - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - CLK_OUT_ENB_SET + PERIPH_CLK_TO_ENB_SET_REG(c)); - return 0; -} - -static void tegra20_cdev_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - BUG_ON(!c->u.periph.clk_num); - - clk_writel(PERIPH_CLK_TO_ENB_BIT(c), - CLK_OUT_ENB_CLR + PERIPH_CLK_TO_ENB_SET_REG(c)); -} - -static unsigned long tegra20_cdev_recalc_rate(struct clk_hw *hw, - unsigned long prate) -{ - return to_clk_tegra(hw)->fixed_rate; -} - -struct clk_ops tegra_cdev_clk_ops = { - .is_enabled = tegra20_cdev_clk_is_enabled, - .enable = tegra20_cdev_clk_enable, - .disable = tegra20_cdev_clk_disable, - .recalc_rate = tegra20_cdev_recalc_rate, -}; - -/* Tegra20 CPU clock and reset control functions */ -static void tegra20_wait_cpu_in_reset(u32 cpu) -{ - unsigned int reg; - - do { - reg = readl(reg_clk_base + - TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET); - cpu_relax(); - } while (!(reg & (1 << cpu))); /* check CPU been reset or not */ - - return; -} - -static void tegra20_put_cpu_in_reset(u32 cpu) -{ - writel(CPU_RESET(cpu), - reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET); - dmb(); -} - -static void tegra20_cpu_out_of_reset(u32 cpu) -{ - writel(CPU_RESET(cpu), - reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR); - wmb(); -} - -static void tegra20_enable_cpu_clock(u32 cpu) -{ - unsigned int reg; - - reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); - writel(reg & ~CPU_CLOCK(cpu), - reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); - barrier(); - reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); -} - -static void tegra20_disable_cpu_clock(u32 cpu) -{ - unsigned int reg; - - reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); - writel(reg | CPU_CLOCK(cpu), - reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); -} - -static struct tegra_cpu_car_ops tegra20_cpu_car_ops = { - .wait_for_reset = tegra20_wait_cpu_in_reset, - .put_in_reset = tegra20_put_cpu_in_reset, - .out_of_reset = tegra20_cpu_out_of_reset, - .enable_clock = tegra20_enable_cpu_clock, - .disable_clock = tegra20_disable_cpu_clock, -}; - -void __init tegra20_cpu_car_ops_init(void) -{ - tegra_cpu_car_ops = &tegra20_cpu_car_ops; -} diff --git a/arch/arm/mach-tegra/tegra20_clocks.h b/arch/arm/mach-tegra/tegra20_clocks.h deleted file mode 100644 index 8bfd31bcc490..000000000000 --- a/arch/arm/mach-tegra/tegra20_clocks.h +++ /dev/null @@ -1,42 +0,0 @@ -/* - * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -#ifndef __MACH_TEGRA20_CLOCK_H -#define __MACH_TEGRA20_CLOCK_H - -extern struct clk_ops tegra_clk_32k_ops; -extern struct clk_ops tegra_pll_ops; -extern struct clk_ops tegra_clk_m_ops; -extern struct clk_ops tegra_pll_div_ops; -extern struct clk_ops tegra_pllx_ops; -extern struct clk_ops tegra_plle_ops; -extern struct clk_ops tegra_clk_double_ops; -extern struct clk_ops tegra_cdev_clk_ops; -extern struct clk_ops tegra_audio_sync_clk_ops; -extern struct clk_ops tegra_super_ops; -extern struct clk_ops tegra_cpu_ops; -extern struct clk_ops tegra_twd_ops; -extern struct clk_ops tegra_cop_ops; -extern struct clk_ops tegra_bus_ops; -extern struct clk_ops tegra_blink_clk_ops; -extern struct clk_ops tegra_emc_clk_ops; -extern struct clk_ops tegra_periph_clk_ops; -extern struct clk_ops tegra_clk_shared_bus_ops; - -void tegra2_periph_clk_reset(struct clk_hw *hw, bool assert); -void tegra2_cop_clk_reset(struct clk_hw *hw, bool assert); - -#endif diff --git a/arch/arm/mach-tegra/tegra20_clocks_data.c b/arch/arm/mach-tegra/tegra20_clocks_data.c deleted file mode 100644 index 022cdaef7ca5..000000000000 --- a/arch/arm/mach-tegra/tegra20_clocks_data.c +++ /dev/null @@ -1,1143 +0,0 @@ -/* - * arch/arm/mach-tegra/tegra2_clocks.c - * - * Copyright (C) 2010 Google, Inc. - * Copyright (c) 2012 NVIDIA CORPORATION. All rights reserved. - * - * Author: - * Colin Cross - * - * This software is licensed under the terms of the GNU General Public - * License version 2, as published by the Free Software Foundation, and - * may be copied, distributed, and modified under those terms. - * - * This program is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "clock.h" -#include "fuse.h" -#include "tegra2_emc.h" -#include "tegra20_clocks.h" - -/* Clock definitions */ - -#define DEFINE_CLK_TEGRA(_name, _rate, _ops, _flags, \ - _parent_names, _parents, _parent) \ - static struct clk tegra_##_name = { \ - .hw = &tegra_##_name##_hw.hw, \ - .name = #_name, \ - .rate = _rate, \ - .ops = _ops, \ - .flags = _flags, \ - .parent_names = _parent_names, \ - .parents = _parents, \ - .num_parents = ARRAY_SIZE(_parent_names), \ - .parent = _parent, \ - }; - -static struct clk tegra_clk_32k; -static struct clk_tegra tegra_clk_32k_hw = { - .hw = { - .clk = &tegra_clk_32k, - }, - .fixed_rate = 32768, -}; - -static struct clk tegra_clk_32k = { - .name = "clk_32k", - .rate = 32768, - .ops = &tegra_clk_32k_ops, - .hw = &tegra_clk_32k_hw.hw, - .flags = CLK_IS_ROOT, -}; - -static struct clk tegra_clk_m; -static struct clk_tegra tegra_clk_m_hw = { - .hw = { - .clk = &tegra_clk_m, - }, - .flags = ENABLE_ON_INIT, - .reg = 0x1fc, - .reg_shift = 28, - .max_rate = 26000000, - .fixed_rate = 0, -}; - -static struct clk tegra_clk_m = { - .name = "clk_m", - .ops = &tegra_clk_m_ops, - .hw = &tegra_clk_m_hw.hw, - .flags = CLK_IS_ROOT, -}; - -#define DEFINE_PLL(_name, _flags, _reg, _max_rate, _input_min, \ - _input_max, _cf_min, _cf_max, _vco_min, \ - _vco_max, _freq_table, _lock_delay, _ops, \ - _fixed_rate, _parent) \ - static const char *tegra_##_name##_parent_names[] = { \ - #_parent, \ - }; \ - static struct clk *tegra_##_name##_parents[] = { \ - &tegra_##_parent, \ - }; \ - static struct clk tegra_##_name; \ - static struct clk_tegra tegra_##_name##_hw = { \ - .hw = { \ - .clk = &tegra_##_name, \ - }, \ - .flags = _flags, \ - .reg = _reg, \ - .max_rate = _max_rate, \ - .u.pll = { \ - .input_min = _input_min, \ - .input_max = _input_max, \ - .cf_min = _cf_min, \ - .cf_max = _cf_max, \ - .vco_min = _vco_min, \ - .vco_max = _vco_max, \ - .freq_table = _freq_table, \ - .lock_delay = _lock_delay, \ - .fixed_rate = _fixed_rate, \ - }, \ - }; \ - static struct clk tegra_##_name = { \ - .name = #_name, \ - .ops = &_ops, \ - .hw = &tegra_##_name##_hw.hw, \ - .parent = &tegra_##_parent, \ - .parent_names = tegra_##_name##_parent_names, \ - .parents = tegra_##_name##_parents, \ - .num_parents = 1, \ - }; - -#define DEFINE_PLL_OUT(_name, _flags, _reg, _reg_shift, \ - _max_rate, _ops, _parent, _clk_flags) \ - static const char *tegra_##_name##_parent_names[] = { \ - #_parent, \ - }; \ - static struct clk *tegra_##_name##_parents[] = { \ - &tegra_##_parent, \ - }; \ - static struct clk tegra_##_name; \ - static struct clk_tegra tegra_##_name##_hw = { \ - .hw = { \ - .clk = &tegra_##_name, \ - }, \ - .flags = _flags, \ - .reg = _reg, \ - .max_rate = _max_rate, \ - .reg_shift = _reg_shift, \ - }; \ - static struct clk tegra_##_name = { \ - .name = #_name, \ - .ops = &tegra_pll_div_ops, \ - .hw = &tegra_##_name##_hw.hw, \ - .parent = &tegra_##_parent, \ - .parent_names = tegra_##_name##_parent_names, \ - .parents = tegra_##_name##_parents, \ - .num_parents = 1, \ - .flags = _clk_flags, \ - }; - - -static struct clk_pll_freq_table tegra_pll_s_freq_table[] = { - {32768, 12000000, 366, 1, 1, 0}, - {32768, 13000000, 397, 1, 1, 0}, - {32768, 19200000, 586, 1, 1, 0}, - {32768, 26000000, 793, 1, 1, 0}, - {0, 0, 0, 0, 0, 0}, -}; - -DEFINE_PLL(pll_s, PLL_ALT_MISC_REG, 0xf0, 26000000, 32768, 32768, 0, - 0, 12000000, 26000000, tegra_pll_s_freq_table, 300, - tegra_pll_ops, 0, clk_32k); - -static struct clk_pll_freq_table tegra_pll_c_freq_table[] = { - { 12000000, 600000000, 600, 12, 1, 8 }, - { 13000000, 600000000, 600, 13, 1, 8 }, - { 19200000, 600000000, 500, 16, 1, 6 }, - { 26000000, 600000000, 600, 26, 1, 8 }, - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_c, PLL_HAS_CPCON, 0x80, 600000000, 2000000, 31000000, 1000000, - 6000000, 20000000, 1400000000, tegra_pll_c_freq_table, 300, - tegra_pll_ops, 0, clk_m); - -DEFINE_PLL_OUT(pll_c_out1, DIV_U71, 0x84, 0, 600000000, - tegra_pll_div_ops, pll_c, 0); - -static struct clk_pll_freq_table tegra_pll_m_freq_table[] = { - { 12000000, 666000000, 666, 12, 1, 8}, - { 13000000, 666000000, 666, 13, 1, 8}, - { 19200000, 666000000, 555, 16, 1, 8}, - { 26000000, 666000000, 666, 26, 1, 8}, - { 12000000, 600000000, 600, 12, 1, 8}, - { 13000000, 600000000, 600, 13, 1, 8}, - { 19200000, 600000000, 375, 12, 1, 6}, - { 26000000, 600000000, 600, 26, 1, 8}, - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_m, PLL_HAS_CPCON, 0x90, 800000000, 2000000, 31000000, 1000000, - 6000000, 20000000, 1200000000, tegra_pll_m_freq_table, 300, - tegra_pll_ops, 0, clk_m); - -DEFINE_PLL_OUT(pll_m_out1, DIV_U71, 0x94, 0, 600000000, - tegra_pll_div_ops, pll_m, 0); - -static struct clk_pll_freq_table tegra_pll_p_freq_table[] = { - { 12000000, 216000000, 432, 12, 2, 8}, - { 13000000, 216000000, 432, 13, 2, 8}, - { 19200000, 216000000, 90, 4, 2, 1}, - { 26000000, 216000000, 432, 26, 2, 8}, - { 12000000, 432000000, 432, 12, 1, 8}, - { 13000000, 432000000, 432, 13, 1, 8}, - { 19200000, 432000000, 90, 4, 1, 1}, - { 26000000, 432000000, 432, 26, 1, 8}, - { 0, 0, 0, 0, 0, 0 }, -}; - - -DEFINE_PLL(pll_p, ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON, 0xa0, 432000000, - 2000000, 31000000, 1000000, 6000000, 20000000, 1400000000, - tegra_pll_p_freq_table, 300, tegra_pll_ops, 216000000, clk_m); - -DEFINE_PLL_OUT(pll_p_out1, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, 0, - 432000000, tegra_pll_div_ops, pll_p, 0); -DEFINE_PLL_OUT(pll_p_out2, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, 16, - 432000000, tegra_pll_div_ops, pll_p, 0); -DEFINE_PLL_OUT(pll_p_out3, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, 0, - 432000000, tegra_pll_div_ops, pll_p, 0); -DEFINE_PLL_OUT(pll_p_out4, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, 16, - 432000000, tegra_pll_div_ops, pll_p, 0); - -static struct clk_pll_freq_table tegra_pll_a_freq_table[] = { - { 28800000, 56448000, 49, 25, 1, 1}, - { 28800000, 73728000, 64, 25, 1, 1}, - { 28800000, 24000000, 5, 6, 1, 1}, - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_a, PLL_HAS_CPCON, 0xb0, 73728000, 2000000, 31000000, 1000000, - 6000000, 20000000, 1400000000, tegra_pll_a_freq_table, 300, - tegra_pll_ops, 0, pll_p_out1); - -DEFINE_PLL_OUT(pll_a_out0, DIV_U71, 0xb4, 0, 73728000, - tegra_pll_div_ops, pll_a, 0); - -static struct clk_pll_freq_table tegra_pll_d_freq_table[] = { - { 12000000, 216000000, 216, 12, 1, 4}, - { 13000000, 216000000, 216, 13, 1, 4}, - { 19200000, 216000000, 135, 12, 1, 3}, - { 26000000, 216000000, 216, 26, 1, 4}, - - { 12000000, 297000000, 99, 4, 1, 4 }, - { 12000000, 339000000, 113, 4, 1, 4 }, - - { 12000000, 594000000, 594, 12, 1, 8}, - { 13000000, 594000000, 594, 13, 1, 8}, - { 19200000, 594000000, 495, 16, 1, 8}, - { 26000000, 594000000, 594, 26, 1, 8}, - - { 12000000, 616000000, 616, 12, 1, 8}, - - { 12000000, 1000000000, 1000, 12, 1, 12}, - { 13000000, 1000000000, 1000, 13, 1, 12}, - { 19200000, 1000000000, 625, 12, 1, 8}, - { 26000000, 1000000000, 1000, 26, 1, 12}, - - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_d, PLL_HAS_CPCON | PLLD, 0xd0, 1000000000, 2000000, 40000000, - 1000000, 6000000, 40000000, 1000000000, tegra_pll_d_freq_table, - 1000, tegra_pll_ops, 0, clk_m); - -DEFINE_PLL_OUT(pll_d_out0, DIV_2 | PLLD, 0, 0, 500000000, - tegra_pll_div_ops, pll_d, CLK_SET_RATE_PARENT); - -static struct clk_pll_freq_table tegra_pll_u_freq_table[] = { - { 12000000, 480000000, 960, 12, 2, 0}, - { 13000000, 480000000, 960, 13, 2, 0}, - { 19200000, 480000000, 200, 4, 2, 0}, - { 26000000, 480000000, 960, 26, 2, 0}, - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_u, PLLU, 0xc0, 480000000, 2000000, 40000000, 1000000, 6000000, - 48000000, 960000000, tegra_pll_u_freq_table, 1000, - tegra_pll_ops, 0, clk_m); - -static struct clk_pll_freq_table tegra_pll_x_freq_table[] = { - /* 1 GHz */ - { 12000000, 1000000000, 1000, 12, 1, 12}, - { 13000000, 1000000000, 1000, 13, 1, 12}, - { 19200000, 1000000000, 625, 12, 1, 8}, - { 26000000, 1000000000, 1000, 26, 1, 12}, - - /* 912 MHz */ - { 12000000, 912000000, 912, 12, 1, 12}, - { 13000000, 912000000, 912, 13, 1, 12}, - { 19200000, 912000000, 760, 16, 1, 8}, - { 26000000, 912000000, 912, 26, 1, 12}, - - /* 816 MHz */ - { 12000000, 816000000, 816, 12, 1, 12}, - { 13000000, 816000000, 816, 13, 1, 12}, - { 19200000, 816000000, 680, 16, 1, 8}, - { 26000000, 816000000, 816, 26, 1, 12}, - - /* 760 MHz */ - { 12000000, 760000000, 760, 12, 1, 12}, - { 13000000, 760000000, 760, 13, 1, 12}, - { 19200000, 760000000, 950, 24, 1, 8}, - { 26000000, 760000000, 760, 26, 1, 12}, - - /* 750 MHz */ - { 12000000, 750000000, 750, 12, 1, 12}, - { 13000000, 750000000, 750, 13, 1, 12}, - { 19200000, 750000000, 625, 16, 1, 8}, - { 26000000, 750000000, 750, 26, 1, 12}, - - /* 608 MHz */ - { 12000000, 608000000, 608, 12, 1, 12}, - { 13000000, 608000000, 608, 13, 1, 12}, - { 19200000, 608000000, 380, 12, 1, 8}, - { 26000000, 608000000, 608, 26, 1, 12}, - - /* 456 MHz */ - { 12000000, 456000000, 456, 12, 1, 12}, - { 13000000, 456000000, 456, 13, 1, 12}, - { 19200000, 456000000, 380, 16, 1, 8}, - { 26000000, 456000000, 456, 26, 1, 12}, - - /* 312 MHz */ - { 12000000, 312000000, 312, 12, 1, 12}, - { 13000000, 312000000, 312, 13, 1, 12}, - { 19200000, 312000000, 260, 16, 1, 8}, - { 26000000, 312000000, 312, 26, 1, 12}, - - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_x, PLL_HAS_CPCON | PLL_ALT_MISC_REG, 0xe0, 1000000000, 2000000, - 31000000, 1000000, 6000000, 20000000, 1200000000, - tegra_pll_x_freq_table, 300, tegra_pllx_ops, 0, clk_m); - -static struct clk_pll_freq_table tegra_pll_e_freq_table[] = { - { 12000000, 100000000, 200, 24, 1, 0 }, - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_e, PLL_ALT_MISC_REG, 0xe8, 100000000, 12000000, 12000000, 0, 0, - 0, 0, tegra_pll_e_freq_table, 0, tegra_plle_ops, 0, clk_m); - -static const char *tegra_common_parent_names[] = { - "clk_m", -}; - -static struct clk *tegra_common_parents[] = { - &tegra_clk_m, -}; - -static struct clk tegra_clk_d; -static struct clk_tegra tegra_clk_d_hw = { - .hw = { - .clk = &tegra_clk_d, - }, - .flags = PERIPH_NO_RESET, - .reg = 0x34, - .reg_shift = 12, - .max_rate = 52000000, - .u.periph = { - .clk_num = 90, - }, -}; - -static struct clk tegra_clk_d = { - .name = "clk_d", - .hw = &tegra_clk_d_hw.hw, - .ops = &tegra_clk_double_ops, - .parent = &tegra_clk_m, - .parent_names = tegra_common_parent_names, - .parents = tegra_common_parents, - .num_parents = ARRAY_SIZE(tegra_common_parent_names), -}; - -static struct clk tegra_cdev1; -static struct clk_tegra tegra_cdev1_hw = { - .hw = { - .clk = &tegra_cdev1, - }, - .fixed_rate = 26000000, - .u.periph = { - .clk_num = 94, - }, -}; -static struct clk tegra_cdev1 = { - .name = "cdev1", - .hw = &tegra_cdev1_hw.hw, - .ops = &tegra_cdev_clk_ops, - .flags = CLK_IS_ROOT, -}; - -/* dap_mclk2, belongs to the cdev2 pingroup. */ -static struct clk tegra_cdev2; -static struct clk_tegra tegra_cdev2_hw = { - .hw = { - .clk = &tegra_cdev2, - }, - .fixed_rate = 26000000, - .u.periph = { - .clk_num = 93, - }, -}; -static struct clk tegra_cdev2 = { - .name = "cdev2", - .hw = &tegra_cdev2_hw.hw, - .ops = &tegra_cdev_clk_ops, - .flags = CLK_IS_ROOT, -}; - -/* initialized before peripheral clocks */ -static struct clk_mux_sel mux_audio_sync_clk[8+1]; -static const struct audio_sources { - const char *name; - int value; -} mux_audio_sync_clk_sources[] = { - { .name = "spdif_in", .value = 0 }, - { .name = "i2s1", .value = 1 }, - { .name = "i2s2", .value = 2 }, - { .name = "pll_a_out0", .value = 4 }, -#if 0 /* FIXME: not implemented */ - { .name = "ac97", .value = 3 }, - { .name = "ext_audio_clk2", .value = 5 }, - { .name = "ext_audio_clk1", .value = 6 }, - { .name = "ext_vimclk", .value = 7 }, -#endif - { NULL, 0 } -}; - -static const char *audio_parent_names[] = { - "spdif_in", - "i2s1", - "i2s2", - "dummy", - "pll_a_out0", - "dummy", - "dummy", - "dummy", -}; - -static struct clk *audio_parents[] = { - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, - NULL, -}; - -static struct clk tegra_audio; -static struct clk_tegra tegra_audio_hw = { - .hw = { - .clk = &tegra_audio, - }, - .reg = 0x38, - .max_rate = 73728000, -}; -DEFINE_CLK_TEGRA(audio, 0, &tegra_audio_sync_clk_ops, 0, audio_parent_names, - audio_parents, NULL); - -static const char *audio_2x_parent_names[] = { - "audio", -}; - -static struct clk *audio_2x_parents[] = { - &tegra_audio, -}; - -static struct clk tegra_audio_2x; -static struct clk_tegra tegra_audio_2x_hw = { - .hw = { - .clk = &tegra_audio_2x, - }, - .flags = PERIPH_NO_RESET, - .max_rate = 48000000, - .reg = 0x34, - .reg_shift = 8, - .u.periph = { - .clk_num = 89, - }, -}; -DEFINE_CLK_TEGRA(audio_2x, 0, &tegra_clk_double_ops, 0, audio_2x_parent_names, - audio_2x_parents, &tegra_audio); - -static struct clk_lookup tegra_audio_clk_lookups[] = { - { .con_id = "audio", .clk = &tegra_audio }, - { .con_id = "audio_2x", .clk = &tegra_audio_2x } -}; - -/* This is called after peripheral clocks are initialized, as the - * audio_sync clock depends on some of the peripheral clocks. - */ - -static void init_audio_sync_clock_mux(void) -{ - int i; - struct clk_mux_sel *sel = mux_audio_sync_clk; - const struct audio_sources *src = mux_audio_sync_clk_sources; - struct clk_lookup *lookup; - - for (i = 0; src->name; i++, sel++, src++) { - sel->input = tegra_get_clock_by_name(src->name); - if (!sel->input) - pr_err("%s: could not find clk %s\n", __func__, - src->name); - audio_parents[src->value] = sel->input; - sel->value = src->value; - } - - lookup = tegra_audio_clk_lookups; - for (i = 0; i < ARRAY_SIZE(tegra_audio_clk_lookups); i++, lookup++) { - struct clk *c = lookup->clk; - struct clk_tegra *clk = to_clk_tegra(c->hw); - __clk_init(NULL, c); - INIT_LIST_HEAD(&clk->shared_bus_list); - clk->lookup.con_id = lookup->con_id; - clk->lookup.clk = c; - clkdev_add(&clk->lookup); - tegra_clk_add(c); - } -} - -static const char *mux_cclk[] = { - "clk_m", - "pll_c", - "clk_32k", - "pll_m", - "pll_p", - "pll_p_out4", - "pll_p_out3", - "clk_d", - "pll_x", -}; - - -static struct clk *mux_cclk_p[] = { - &tegra_clk_m, - &tegra_pll_c, - &tegra_clk_32k, - &tegra_pll_m, - &tegra_pll_p, - &tegra_pll_p_out4, - &tegra_pll_p_out3, - &tegra_clk_d, - &tegra_pll_x, -}; - -static const char *mux_sclk[] = { - "clk_m", - "pll_c_out1", - "pll_p_out4", - "pllp_p_out3", - "pll_p_out2", - "clk_d", - "clk_32k", - "pll_m_out1", -}; - -static struct clk *mux_sclk_p[] = { - &tegra_clk_m, - &tegra_pll_c_out1, - &tegra_pll_p_out4, - &tegra_pll_p_out3, - &tegra_pll_p_out2, - &tegra_clk_d, - &tegra_clk_32k, - &tegra_pll_m_out1, -}; - -static struct clk tegra_cclk; -static struct clk_tegra tegra_cclk_hw = { - .hw = { - .clk = &tegra_cclk, - }, - .reg = 0x20, - .max_rate = 1000000000, -}; -DEFINE_CLK_TEGRA(cclk, 0, &tegra_super_ops, 0, mux_cclk, - mux_cclk_p, NULL); - -static const char *mux_twd[] = { - "cclk", -}; - -static struct clk *mux_twd_p[] = { - &tegra_cclk, -}; - -static struct clk tegra_clk_twd; -static struct clk_tegra tegra_clk_twd_hw = { - .hw = { - .clk = &tegra_clk_twd, - }, - .max_rate = 1000000000, - .mul = 1, - .div = 4, -}; - -static struct clk tegra_clk_twd = { - .name = "twd", - .ops = &tegra_twd_ops, - .hw = &tegra_clk_twd_hw.hw, - .parent = &tegra_cclk, - .parent_names = mux_twd, - .parents = mux_twd_p, - .num_parents = ARRAY_SIZE(mux_twd), -}; - -static struct clk tegra_sclk; -static struct clk_tegra tegra_sclk_hw = { - .hw = { - .clk = &tegra_sclk, - }, - .reg = 0x28, - .max_rate = 240000000, - .min_rate = 120000000, -}; -DEFINE_CLK_TEGRA(sclk, 0, &tegra_super_ops, 0, mux_sclk, - mux_sclk_p, NULL); - -static const char *tegra_cop_parent_names[] = { - "tegra_sclk", -}; - -static struct clk *tegra_cop_parents[] = { - &tegra_sclk, -}; - -static struct clk tegra_cop; -static struct clk_tegra tegra_cop_hw = { - .hw = { - .clk = &tegra_cop, - }, - .max_rate = 240000000, - .reset = &tegra2_cop_clk_reset, -}; -DEFINE_CLK_TEGRA(cop, 0, &tegra_cop_ops, CLK_SET_RATE_PARENT, - tegra_cop_parent_names, tegra_cop_parents, &tegra_sclk); - -static const char *tegra_hclk_parent_names[] = { - "tegra_sclk", -}; - -static struct clk *tegra_hclk_parents[] = { - &tegra_sclk, -}; - -static struct clk tegra_hclk; -static struct clk_tegra tegra_hclk_hw = { - .hw = { - .clk = &tegra_hclk, - }, - .flags = DIV_BUS, - .reg = 0x30, - .reg_shift = 4, - .max_rate = 240000000, -}; -DEFINE_CLK_TEGRA(hclk, 0, &tegra_bus_ops, 0, tegra_hclk_parent_names, - tegra_hclk_parents, &tegra_sclk); - -static const char *tegra_pclk_parent_names[] = { - "tegra_hclk", -}; - -static struct clk *tegra_pclk_parents[] = { - &tegra_hclk, -}; - -static struct clk tegra_pclk; -static struct clk_tegra tegra_pclk_hw = { - .hw = { - .clk = &tegra_pclk, - }, - .flags = DIV_BUS, - .reg = 0x30, - .reg_shift = 0, - .max_rate = 120000000, -}; -DEFINE_CLK_TEGRA(pclk, 0, &tegra_bus_ops, 0, tegra_pclk_parent_names, - tegra_pclk_parents, &tegra_hclk); - -static const char *tegra_blink_parent_names[] = { - "clk_32k", -}; - -static struct clk *tegra_blink_parents[] = { - &tegra_clk_32k, -}; - -static struct clk tegra_blink; -static struct clk_tegra tegra_blink_hw = { - .hw = { - .clk = &tegra_blink, - }, - .reg = 0x40, - .max_rate = 32768, -}; -DEFINE_CLK_TEGRA(blink, 0, &tegra_blink_clk_ops, 0, tegra_blink_parent_names, - tegra_blink_parents, &tegra_clk_32k); - -static const char *mux_pllm_pllc_pllp_plla[] = { - "pll_m", - "pll_c", - "pll_p", - "pll_a_out0", -}; - -static struct clk *mux_pllm_pllc_pllp_plla_p[] = { - &tegra_pll_m, - &tegra_pll_c, - &tegra_pll_p, - &tegra_pll_a_out0, -}; - -static const char *mux_pllm_pllc_pllp_clkm[] = { - "pll_m", - "pll_c", - "pll_p", - "clk_m", -}; - -static struct clk *mux_pllm_pllc_pllp_clkm_p[] = { - &tegra_pll_m, - &tegra_pll_c, - &tegra_pll_p, - &tegra_clk_m, -}; - -static const char *mux_pllp_pllc_pllm_clkm[] = { - "pll_p", - "pll_c", - "pll_m", - "clk_m", -}; - -static struct clk *mux_pllp_pllc_pllm_clkm_p[] = { - &tegra_pll_p, - &tegra_pll_c, - &tegra_pll_m, - &tegra_clk_m, -}; - -static const char *mux_pllaout0_audio2x_pllp_clkm[] = { - "pll_a_out0", - "audio_2x", - "pll_p", - "clk_m", -}; - -static struct clk *mux_pllaout0_audio2x_pllp_clkm_p[] = { - &tegra_pll_a_out0, - &tegra_audio_2x, - &tegra_pll_p, - &tegra_clk_m, -}; - -static const char *mux_pllp_plld_pllc_clkm[] = { - "pllp", - "pll_d_out0", - "pll_c", - "clk_m", -}; - -static struct clk *mux_pllp_plld_pllc_clkm_p[] = { - &tegra_pll_p, - &tegra_pll_d_out0, - &tegra_pll_c, - &tegra_clk_m, -}; - -static const char *mux_pllp_pllc_audio_clkm_clk32[] = { - "pll_p", - "pll_c", - "audio", - "clk_m", - "clk_32k", -}; - -static struct clk *mux_pllp_pllc_audio_clkm_clk32_p[] = { - &tegra_pll_p, - &tegra_pll_c, - &tegra_audio, - &tegra_clk_m, - &tegra_clk_32k, -}; - -static const char *mux_pllp_pllc_pllm[] = { - "pll_p", - "pll_c", - "pll_m" -}; - -static struct clk *mux_pllp_pllc_pllm_p[] = { - &tegra_pll_p, - &tegra_pll_c, - &tegra_pll_m, -}; - -static const char *mux_clk_m[] = { - "clk_m", -}; - -static struct clk *mux_clk_m_p[] = { - &tegra_clk_m, -}; - -static const char *mux_pllp_out3[] = { - "pll_p_out3", -}; - -static struct clk *mux_pllp_out3_p[] = { - &tegra_pll_p_out3, -}; - -static const char *mux_plld[] = { - "pll_d", -}; - -static struct clk *mux_plld_p[] = { - &tegra_pll_d, -}; - -static const char *mux_clk_32k[] = { - "clk_32k", -}; - -static struct clk *mux_clk_32k_p[] = { - &tegra_clk_32k, -}; - -static const char *mux_pclk[] = { - "pclk", -}; - -static struct clk *mux_pclk_p[] = { - &tegra_pclk, -}; - -static struct clk tegra_emc; -static struct clk_tegra tegra_emc_hw = { - .hw = { - .clk = &tegra_emc, - }, - .reg = 0x19c, - .max_rate = 800000000, - .flags = MUX | DIV_U71 | PERIPH_EMC_ENB, - .reset = &tegra2_periph_clk_reset, - .u.periph = { - .clk_num = 57, - }, -}; -DEFINE_CLK_TEGRA(emc, 0, &tegra_emc_clk_ops, 0, mux_pllm_pllc_pllp_clkm, - mux_pllm_pllc_pllp_clkm_p, NULL); - -#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, \ - _max, _inputs, _flags) \ - static struct clk tegra_##_name; \ - static struct clk_tegra tegra_##_name##_hw = { \ - .hw = { \ - .clk = &tegra_##_name, \ - }, \ - .lookup = { \ - .dev_id = _dev, \ - .con_id = _con, \ - }, \ - .reg = _reg, \ - .flags = _flags, \ - .max_rate = _max, \ - .u.periph = { \ - .clk_num = _clk_num, \ - }, \ - .reset = tegra2_periph_clk_reset, \ - }; \ - static struct clk tegra_##_name = { \ - .name = #_name, \ - .ops = &tegra_periph_clk_ops, \ - .hw = &tegra_##_name##_hw.hw, \ - .parent_names = _inputs, \ - .parents = _inputs##_p, \ - .num_parents = ARRAY_SIZE(_inputs), \ - }; - -PERIPH_CLK(apbdma, "tegra-apbdma", NULL, 34, 0, 108000000, mux_pclk, 0); -PERIPH_CLK(rtc, "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET); -PERIPH_CLK(timer, "timer", NULL, 5, 0, 26000000, mux_clk_m, 0); -PERIPH_CLK(i2s1, "tegra20-i2s.0", NULL, 11, 0x100, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71); -PERIPH_CLK(i2s2, "tegra20-i2s.1", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71); -PERIPH_CLK(spdif_out, "spdif_out", NULL, 10, 0x108, 100000000, mux_pllaout0_audio2x_pllp_clkm, MUX | DIV_U71); -PERIPH_CLK(spdif_in, "spdif_in", NULL, 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71); -PERIPH_CLK(pwm, "tegra-pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_audio_clkm_clk32, MUX | DIV_U71 | MUX_PWM); -PERIPH_CLK(spi, "spi", NULL, 43, 0x114, 40000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(xio, "xio", NULL, 45, 0x120, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(twc, "twc", NULL, 16, 0x12c, 150000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(sbc1, "spi_tegra.0", NULL, 41, 0x134, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(sbc2, "spi_tegra.1", NULL, 44, 0x118, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(sbc3, "spi_tegra.2", NULL, 46, 0x11c, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(sbc4, "spi_tegra.3", NULL, 68, 0x1b4, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(ide, "ide", NULL, 25, 0x144, 100000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* requires min voltage */ -PERIPH_CLK(ndflash, "tegra_nand", NULL, 13, 0x160, 164000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ -PERIPH_CLK(vfir, "vfir", NULL, 7, 0x168, 72000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(sdmmc1, "sdhci-tegra.0", NULL, 14, 0x150, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ -PERIPH_CLK(sdmmc2, "sdhci-tegra.1", NULL, 9, 0x154, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ -PERIPH_CLK(sdmmc3, "sdhci-tegra.2", NULL, 69, 0x1bc, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ -PERIPH_CLK(sdmmc4, "sdhci-tegra.3", NULL, 15, 0x164, 52000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ -PERIPH_CLK(vcp, "tegra-avp", "vcp", 29, 0, 250000000, mux_clk_m, 0); -PERIPH_CLK(bsea, "tegra-avp", "bsea", 62, 0, 250000000, mux_clk_m, 0); -PERIPH_CLK(bsev, "tegra-aes", "bsev", 63, 0, 250000000, mux_clk_m, 0); -PERIPH_CLK(vde, "tegra-avp", "vde", 61, 0x1c8, 250000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage and process_id */ -PERIPH_CLK(csite, "csite", NULL, 73, 0x1d4, 144000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* max rate ??? */ -/* FIXME: what is la? */ -PERIPH_CLK(la, "la", NULL, 76, 0x1f8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(owr, "tegra_w1", NULL, 71, 0x1cc, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(nor, "nor", NULL, 42, 0x1d0, 92000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* requires min voltage */ -PERIPH_CLK(mipi, "mipi", NULL, 50, 0x174, 60000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ -PERIPH_CLK(i2c1, "tegra-i2c.0", "div-clk", 12, 0x124, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); -PERIPH_CLK(i2c2, "tegra-i2c.1", "div-clk", 54, 0x198, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); -PERIPH_CLK(i2c3, "tegra-i2c.2", "div-clk", 67, 0x1b8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); -PERIPH_CLK(dvc, "tegra-i2c.3", "div-clk", 47, 0x128, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U16); -PERIPH_CLK(uarta, "tegra-uart.0", NULL, 6, 0x178, 600000000, mux_pllp_pllc_pllm_clkm, MUX); -PERIPH_CLK(uartb, "tegra-uart.1", NULL, 7, 0x17c, 600000000, mux_pllp_pllc_pllm_clkm, MUX); -PERIPH_CLK(uartc, "tegra-uart.2", NULL, 55, 0x1a0, 600000000, mux_pllp_pllc_pllm_clkm, MUX); -PERIPH_CLK(uartd, "tegra-uart.3", NULL, 65, 0x1c0, 600000000, mux_pllp_pllc_pllm_clkm, MUX); -PERIPH_CLK(uarte, "tegra-uart.4", NULL, 66, 0x1c4, 600000000, mux_pllp_pllc_pllm_clkm, MUX); -PERIPH_CLK(3d, "3d", NULL, 24, 0x158, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_MANUAL_RESET); /* scales with voltage and process_id */ -PERIPH_CLK(2d, "2d", NULL, 21, 0x15c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */ -PERIPH_CLK(vi, "tegra_camera", "vi", 20, 0x148, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */ -PERIPH_CLK(vi_sensor, "tegra_camera", "vi_sensor", 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET); /* scales with voltage and process_id */ -PERIPH_CLK(epp, "epp", NULL, 19, 0x16c, 300000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */ -PERIPH_CLK(mpe, "mpe", NULL, 60, 0x170, 250000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */ -PERIPH_CLK(host1x, "host1x", NULL, 28, 0x180, 166000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71); /* scales with voltage and process_id */ -PERIPH_CLK(cve, "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ -PERIPH_CLK(tvo, "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ -PERIPH_CLK(hdmi, "hdmi", NULL, 51, 0x18c, 600000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ -PERIPH_CLK(tvdac, "tvdac", NULL, 53, 0x194, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ -PERIPH_CLK(disp1, "tegradc.0", NULL, 27, 0x138, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */ -PERIPH_CLK(disp2, "tegradc.1", NULL, 26, 0x13c, 600000000, mux_pllp_plld_pllc_clkm, MUX); /* scales with voltage and process_id */ -PERIPH_CLK(usbd, "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ -PERIPH_CLK(usb2, "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ -PERIPH_CLK(usb3, "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ -PERIPH_CLK(dsi, "dsi", NULL, 48, 0, 500000000, mux_plld, 0); /* scales with voltage */ -PERIPH_CLK(csi, "tegra_camera", "csi", 52, 0, 72000000, mux_pllp_out3, 0); -PERIPH_CLK(isp, "tegra_camera", "isp", 23, 0, 150000000, mux_clk_m, 0); /* same frequency as VI */ -PERIPH_CLK(csus, "tegra_camera", "csus", 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET); -PERIPH_CLK(pex, NULL, "pex", 70, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET); -PERIPH_CLK(afi, NULL, "afi", 72, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET); -PERIPH_CLK(pcie_xclk, NULL, "pcie_xclk", 74, 0, 26000000, mux_clk_m, PERIPH_MANUAL_RESET); - -static struct clk *tegra_list_clks[] = { - &tegra_apbdma, - &tegra_rtc, - &tegra_timer, - &tegra_i2s1, - &tegra_i2s2, - &tegra_spdif_out, - &tegra_spdif_in, - &tegra_pwm, - &tegra_spi, - &tegra_xio, - &tegra_twc, - &tegra_sbc1, - &tegra_sbc2, - &tegra_sbc3, - &tegra_sbc4, - &tegra_ide, - &tegra_ndflash, - &tegra_vfir, - &tegra_sdmmc1, - &tegra_sdmmc2, - &tegra_sdmmc3, - &tegra_sdmmc4, - &tegra_vcp, - &tegra_bsea, - &tegra_bsev, - &tegra_vde, - &tegra_csite, - &tegra_la, - &tegra_owr, - &tegra_nor, - &tegra_mipi, - &tegra_i2c1, - &tegra_i2c2, - &tegra_i2c3, - &tegra_dvc, - &tegra_uarta, - &tegra_uartb, - &tegra_uartc, - &tegra_uartd, - &tegra_uarte, - &tegra_3d, - &tegra_2d, - &tegra_vi, - &tegra_vi_sensor, - &tegra_epp, - &tegra_mpe, - &tegra_host1x, - &tegra_cve, - &tegra_tvo, - &tegra_hdmi, - &tegra_tvdac, - &tegra_disp1, - &tegra_disp2, - &tegra_usbd, - &tegra_usb2, - &tegra_usb3, - &tegra_dsi, - &tegra_csi, - &tegra_isp, - &tegra_csus, - &tegra_pex, - &tegra_afi, - &tegra_pcie_xclk, -}; - -#define CLK_DUPLICATE(_name, _dev, _con) \ - { \ - .name = _name, \ - .lookup = { \ - .dev_id = _dev, \ - .con_id = _con, \ - }, \ - } - -/* Some clocks may be used by different drivers depending on the board - * configuration. List those here to register them twice in the clock lookup - * table under two names. - */ -static struct clk_duplicate tegra_clk_duplicates[] = { - CLK_DUPLICATE("uarta", "serial8250.0", NULL), - CLK_DUPLICATE("uartb", "serial8250.1", NULL), - CLK_DUPLICATE("uartc", "serial8250.2", NULL), - CLK_DUPLICATE("uartd", "serial8250.3", NULL), - CLK_DUPLICATE("uarte", "serial8250.4", NULL), - CLK_DUPLICATE("usbd", "utmip-pad", NULL), - CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL), - CLK_DUPLICATE("usbd", "tegra-otg", NULL), - CLK_DUPLICATE("2d", "tegra_grhost", "gr2d"), - CLK_DUPLICATE("3d", "tegra_grhost", "gr3d"), - CLK_DUPLICATE("epp", "tegra_grhost", "epp"), - CLK_DUPLICATE("mpe", "tegra_grhost", "mpe"), - CLK_DUPLICATE("cop", "tegra-avp", "cop"), - CLK_DUPLICATE("vde", "tegra-aes", "vde"), - CLK_DUPLICATE("cclk", NULL, "cpu"), - CLK_DUPLICATE("twd", "smp_twd", NULL), - CLK_DUPLICATE("pll_p_out3", "tegra-i2c.0", "fast-clk"), - CLK_DUPLICATE("pll_p_out3", "tegra-i2c.1", "fast-clk"), - CLK_DUPLICATE("pll_p_out3", "tegra-i2c.2", "fast-clk"), - CLK_DUPLICATE("pll_p_out3", "tegra-i2c.3", "fast-clk"), - CLK_DUPLICATE("pll_p", "tegradc.0", "parent"), - CLK_DUPLICATE("pll_p", "tegradc.1", "parent"), - CLK_DUPLICATE("pll_d_out0", "hdmi", "parent"), -}; - -#define CLK(dev, con, ck) \ - { \ - .dev_id = dev, \ - .con_id = con, \ - .clk = ck, \ - } - -static struct clk *tegra_ptr_clks[] = { - &tegra_clk_32k, - &tegra_pll_s, - &tegra_clk_m, - &tegra_pll_m, - &tegra_pll_m_out1, - &tegra_pll_c, - &tegra_pll_c_out1, - &tegra_pll_p, - &tegra_pll_p_out1, - &tegra_pll_p_out2, - &tegra_pll_p_out3, - &tegra_pll_p_out4, - &tegra_pll_a, - &tegra_pll_a_out0, - &tegra_pll_d, - &tegra_pll_d_out0, - &tegra_pll_u, - &tegra_pll_x, - &tegra_pll_e, - &tegra_cclk, - &tegra_clk_twd, - &tegra_sclk, - &tegra_hclk, - &tegra_pclk, - &tegra_clk_d, - &tegra_cdev1, - &tegra_cdev2, - &tegra_blink, - &tegra_cop, - &tegra_emc, -}; - -static void tegra2_init_one_clock(struct clk *c) -{ - struct clk_tegra *clk = to_clk_tegra(c->hw); - int ret; - - ret = __clk_init(NULL, c); - if (ret) - pr_err("clk init failed %s\n", __clk_get_name(c)); - - INIT_LIST_HEAD(&clk->shared_bus_list); - if (!clk->lookup.dev_id && !clk->lookup.con_id) - clk->lookup.con_id = c->name; - clk->lookup.clk = c; - clkdev_add(&clk->lookup); - tegra_clk_add(c); -} - -void __init tegra2_init_clocks(void) -{ - int i; - struct clk *c; - - for (i = 0; i < ARRAY_SIZE(tegra_ptr_clks); i++) - tegra2_init_one_clock(tegra_ptr_clks[i]); - - for (i = 0; i < ARRAY_SIZE(tegra_list_clks); i++) - tegra2_init_one_clock(tegra_list_clks[i]); - - for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) { - c = tegra_get_clock_by_name(tegra_clk_duplicates[i].name); - if (!c) { - pr_err("%s: Unknown duplicate clock %s\n", __func__, - tegra_clk_duplicates[i].name); - continue; - } - - tegra_clk_duplicates[i].lookup.clk = c; - clkdev_add(&tegra_clk_duplicates[i].lookup); - } - - init_audio_sync_clock_mux(); - tegra20_cpu_car_ops_init(); -} diff --git a/arch/arm/mach-tegra/tegra30_clocks.c b/arch/arm/mach-tegra/tegra30_clocks.c deleted file mode 100644 index 4330787fe5cb..000000000000 --- a/arch/arm/mach-tegra/tegra30_clocks.c +++ /dev/null @@ -1,2506 +0,0 @@ -/* - * arch/arm/mach-tegra/tegra30_clocks.c - * - * Copyright (c) 2010-2012 NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include - -#include - -#include "clock.h" -#include "fuse.h" -#include "iomap.h" - -#define USE_PLL_LOCK_BITS 0 - -#define RST_DEVICES_L 0x004 -#define RST_DEVICES_H 0x008 -#define RST_DEVICES_U 0x00C -#define RST_DEVICES_V 0x358 -#define RST_DEVICES_W 0x35C -#define RST_DEVICES_SET_L 0x300 -#define RST_DEVICES_CLR_L 0x304 -#define RST_DEVICES_SET_V 0x430 -#define RST_DEVICES_CLR_V 0x434 -#define RST_DEVICES_NUM 5 - -#define CLK_OUT_ENB_L 0x010 -#define CLK_OUT_ENB_H 0x014 -#define CLK_OUT_ENB_U 0x018 -#define CLK_OUT_ENB_V 0x360 -#define CLK_OUT_ENB_W 0x364 -#define CLK_OUT_ENB_SET_L 0x320 -#define CLK_OUT_ENB_CLR_L 0x324 -#define CLK_OUT_ENB_SET_V 0x440 -#define CLK_OUT_ENB_CLR_V 0x444 -#define CLK_OUT_ENB_NUM 5 - -#define RST_DEVICES_V_SWR_CPULP_RST_DIS (0x1 << 1) -#define CLK_OUT_ENB_V_CLK_ENB_CPULP_EN (0x1 << 1) - -#define PERIPH_CLK_TO_BIT(c) (1 << (c->u.periph.clk_num % 32)) -#define PERIPH_CLK_TO_RST_REG(c) \ - periph_clk_to_reg((c), RST_DEVICES_L, RST_DEVICES_V, 4) -#define PERIPH_CLK_TO_RST_SET_REG(c) \ - periph_clk_to_reg((c), RST_DEVICES_SET_L, RST_DEVICES_SET_V, 8) -#define PERIPH_CLK_TO_RST_CLR_REG(c) \ - periph_clk_to_reg((c), RST_DEVICES_CLR_L, RST_DEVICES_CLR_V, 8) - -#define PERIPH_CLK_TO_ENB_REG(c) \ - periph_clk_to_reg((c), CLK_OUT_ENB_L, CLK_OUT_ENB_V, 4) -#define PERIPH_CLK_TO_ENB_SET_REG(c) \ - periph_clk_to_reg((c), CLK_OUT_ENB_SET_L, CLK_OUT_ENB_SET_V, 8) -#define PERIPH_CLK_TO_ENB_CLR_REG(c) \ - periph_clk_to_reg((c), CLK_OUT_ENB_CLR_L, CLK_OUT_ENB_CLR_V, 8) - -#define CLK_MASK_ARM 0x44 -#define MISC_CLK_ENB 0x48 - -#define OSC_CTRL 0x50 -#define OSC_CTRL_OSC_FREQ_MASK (0xF<<28) -#define OSC_CTRL_OSC_FREQ_13MHZ (0x0<<28) -#define OSC_CTRL_OSC_FREQ_19_2MHZ (0x4<<28) -#define OSC_CTRL_OSC_FREQ_12MHZ (0x8<<28) -#define OSC_CTRL_OSC_FREQ_26MHZ (0xC<<28) -#define OSC_CTRL_OSC_FREQ_16_8MHZ (0x1<<28) -#define OSC_CTRL_OSC_FREQ_38_4MHZ (0x5<<28) -#define OSC_CTRL_OSC_FREQ_48MHZ (0x9<<28) -#define OSC_CTRL_MASK (0x3f2 | OSC_CTRL_OSC_FREQ_MASK) - -#define OSC_CTRL_PLL_REF_DIV_MASK (3<<26) -#define OSC_CTRL_PLL_REF_DIV_1 (0<<26) -#define OSC_CTRL_PLL_REF_DIV_2 (1<<26) -#define OSC_CTRL_PLL_REF_DIV_4 (2<<26) - -#define OSC_FREQ_DET 0x58 -#define OSC_FREQ_DET_TRIG (1<<31) - -#define OSC_FREQ_DET_STATUS 0x5C -#define OSC_FREQ_DET_BUSY (1<<31) -#define OSC_FREQ_DET_CNT_MASK 0xFFFF - -#define PERIPH_CLK_SOURCE_I2S1 0x100 -#define PERIPH_CLK_SOURCE_EMC 0x19c -#define PERIPH_CLK_SOURCE_OSC 0x1fc -#define PERIPH_CLK_SOURCE_NUM1 \ - ((PERIPH_CLK_SOURCE_OSC - PERIPH_CLK_SOURCE_I2S1) / 4) - -#define PERIPH_CLK_SOURCE_G3D2 0x3b0 -#define PERIPH_CLK_SOURCE_SE 0x42c -#define PERIPH_CLK_SOURCE_NUM2 \ - ((PERIPH_CLK_SOURCE_SE - PERIPH_CLK_SOURCE_G3D2) / 4 + 1) - -#define AUDIO_DLY_CLK 0x49c -#define AUDIO_SYNC_CLK_SPDIF 0x4b4 -#define PERIPH_CLK_SOURCE_NUM3 \ - ((AUDIO_SYNC_CLK_SPDIF - AUDIO_DLY_CLK) / 4 + 1) - -#define PERIPH_CLK_SOURCE_NUM (PERIPH_CLK_SOURCE_NUM1 + \ - PERIPH_CLK_SOURCE_NUM2 + \ - PERIPH_CLK_SOURCE_NUM3) - -#define CPU_SOFTRST_CTRL 0x380 - -#define PERIPH_CLK_SOURCE_DIVU71_MASK 0xFF -#define PERIPH_CLK_SOURCE_DIVU16_MASK 0xFFFF -#define PERIPH_CLK_SOURCE_DIV_SHIFT 0 -#define PERIPH_CLK_SOURCE_DIVIDLE_SHIFT 8 -#define PERIPH_CLK_SOURCE_DIVIDLE_VAL 50 -#define PERIPH_CLK_UART_DIV_ENB (1<<24) -#define PERIPH_CLK_VI_SEL_EX_SHIFT 24 -#define PERIPH_CLK_VI_SEL_EX_MASK (0x3<reg_shift - 24) * 4) - -#define PLL_BASE 0x0 -#define PLL_BASE_BYPASS (1<<31) -#define PLL_BASE_ENABLE (1<<30) -#define PLL_BASE_REF_ENABLE (1<<29) -#define PLL_BASE_OVERRIDE (1<<28) -#define PLL_BASE_LOCK (1<<27) -#define PLL_BASE_DIVP_MASK (0x7<<20) -#define PLL_BASE_DIVP_SHIFT 20 -#define PLL_BASE_DIVN_MASK (0x3FF<<8) -#define PLL_BASE_DIVN_SHIFT 8 -#define PLL_BASE_DIVM_MASK (0x1F) -#define PLL_BASE_DIVM_SHIFT 0 - -#define PLL_OUT_RATIO_MASK (0xFF<<8) -#define PLL_OUT_RATIO_SHIFT 8 -#define PLL_OUT_OVERRIDE (1<<2) -#define PLL_OUT_CLKEN (1<<1) -#define PLL_OUT_RESET_DISABLE (1<<0) - -#define PLL_MISC(c) \ - (((c)->flags & PLL_ALT_MISC_REG) ? 0x4 : 0xc) -#define PLL_MISC_LOCK_ENABLE(c) \ - (((c)->flags & (PLLU | PLLD)) ? (1<<22) : (1<<18)) - -#define PLL_MISC_DCCON_SHIFT 20 -#define PLL_MISC_CPCON_SHIFT 8 -#define PLL_MISC_CPCON_MASK (0xF<hw.clk; - - return clk_set_rate(clk, - (__clk_get_rate(__clk_get_parent(clk)) + n - 1) / n); -} - -static inline u32 periph_clk_to_reg( - struct clk_tegra *c, u32 reg_L, u32 reg_V, int offs) -{ - u32 reg = c->u.periph.clk_num / 32; - BUG_ON(reg >= RST_DEVICES_NUM); - if (reg < 3) - reg = reg_L + (reg * offs); - else - reg = reg_V + ((reg - 3) * offs); - return reg; -} - -static unsigned long clk_measure_input_freq(void) -{ - u32 clock_autodetect; - clk_writel(OSC_FREQ_DET_TRIG | 1, OSC_FREQ_DET); - do {} while (clk_readl(OSC_FREQ_DET_STATUS) & OSC_FREQ_DET_BUSY); - clock_autodetect = clk_readl(OSC_FREQ_DET_STATUS); - if (clock_autodetect >= 732 - 3 && clock_autodetect <= 732 + 3) { - return 12000000; - } else if (clock_autodetect >= 794 - 3 && clock_autodetect <= 794 + 3) { - return 13000000; - } else if (clock_autodetect >= 1172 - 3 && clock_autodetect <= 1172 + 3) { - return 19200000; - } else if (clock_autodetect >= 1587 - 3 && clock_autodetect <= 1587 + 3) { - return 26000000; - } else if (clock_autodetect >= 1025 - 3 && clock_autodetect <= 1025 + 3) { - return 16800000; - } else if (clock_autodetect >= 2344 - 3 && clock_autodetect <= 2344 + 3) { - return 38400000; - } else if (clock_autodetect >= 2928 - 3 && clock_autodetect <= 2928 + 3) { - return 48000000; - } else { - pr_err("%s: Unexpected clock autodetect value %d", __func__, - clock_autodetect); - BUG(); - return 0; - } -} - -static int clk_div71_get_divider(unsigned long parent_rate, unsigned long rate, - u32 flags, u32 round_mode) -{ - s64 divider_u71 = parent_rate; - if (!rate) - return -EINVAL; - - if (!(flags & DIV_U71_INT)) - divider_u71 *= 2; - if (round_mode == ROUND_DIVIDER_UP) - divider_u71 += rate - 1; - do_div(divider_u71, rate); - if (flags & DIV_U71_INT) - divider_u71 *= 2; - - if (divider_u71 - 2 < 0) - return 0; - - if (divider_u71 - 2 > 255) - return -EINVAL; - - return divider_u71 - 2; -} - -static int clk_div16_get_divider(unsigned long parent_rate, unsigned long rate) -{ - s64 divider_u16; - - divider_u16 = parent_rate; - if (!rate) - return -EINVAL; - divider_u16 += rate - 1; - do_div(divider_u16, rate); - - if (divider_u16 - 1 < 0) - return 0; - - if (divider_u16 - 1 > 0xFFFF) - return -EINVAL; - - return divider_u16 - 1; -} - -static unsigned long tegra30_clk_fixed_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - return to_clk_tegra(hw)->fixed_rate; -} - -struct clk_ops tegra30_clk_32k_ops = { - .recalc_rate = tegra30_clk_fixed_recalc_rate, -}; - -/* clk_m functions */ -static unsigned long tegra30_clk_m_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - if (!to_clk_tegra(hw)->fixed_rate) - to_clk_tegra(hw)->fixed_rate = clk_measure_input_freq(); - return to_clk_tegra(hw)->fixed_rate; -} - -static void tegra30_clk_m_init(struct clk_hw *hw) -{ - u32 osc_ctrl = clk_readl(OSC_CTRL); - u32 auto_clock_control = osc_ctrl & ~OSC_CTRL_OSC_FREQ_MASK; - u32 pll_ref_div = osc_ctrl & OSC_CTRL_PLL_REF_DIV_MASK; - - switch (to_clk_tegra(hw)->fixed_rate) { - case 12000000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_12MHZ; - BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); - break; - case 13000000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_13MHZ; - BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); - break; - case 19200000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_19_2MHZ; - BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); - break; - case 26000000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_26MHZ; - BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); - break; - case 16800000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_16_8MHZ; - BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_1); - break; - case 38400000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_38_4MHZ; - BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_2); - break; - case 48000000: - auto_clock_control |= OSC_CTRL_OSC_FREQ_48MHZ; - BUG_ON(pll_ref_div != OSC_CTRL_PLL_REF_DIV_4); - break; - default: - pr_err("%s: Unexpected clock rate %ld", __func__, - to_clk_tegra(hw)->fixed_rate); - BUG(); - } - clk_writel(auto_clock_control, OSC_CTRL); -} - -struct clk_ops tegra30_clk_m_ops = { - .init = tegra30_clk_m_init, - .recalc_rate = tegra30_clk_m_recalc_rate, -}; - -static unsigned long tegra30_clk_m_div_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = parent_rate; - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - - return rate; -} - -struct clk_ops tegra_clk_m_div_ops = { - .recalc_rate = tegra30_clk_m_div_recalc_rate, -}; - -/* PLL reference divider functions */ -static unsigned long tegra30_pll_ref_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long rate = parent_rate; - u32 pll_ref_div = clk_readl(OSC_CTRL) & OSC_CTRL_PLL_REF_DIV_MASK; - - switch (pll_ref_div) { - case OSC_CTRL_PLL_REF_DIV_1: - c->div = 1; - break; - case OSC_CTRL_PLL_REF_DIV_2: - c->div = 2; - break; - case OSC_CTRL_PLL_REF_DIV_4: - c->div = 4; - break; - default: - pr_err("%s: Invalid pll ref divider %d", __func__, pll_ref_div); - BUG(); - } - c->mul = 1; - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - - return rate; -} - -struct clk_ops tegra_pll_ref_ops = { - .recalc_rate = tegra30_pll_ref_recalc_rate, -}; - -/* super clock functions */ -/* "super clocks" on tegra30 have two-stage muxes, fractional 7.1 divider and - * clock skipping super divider. We will ignore the clock skipping divider, - * since we can't lower the voltage when using the clock skip, but we can if - * we lower the PLL frequency. We will use 7.1 divider for CPU super-clock - * only when its parent is a fixed rate PLL, since we can't change PLL rate - * in this case. - */ -static void tegra30_super_clk_init(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - struct clk_tegra *p = - to_clk_tegra(__clk_get_hw(__clk_get_parent(hw->clk))); - - c->state = ON; - if (c->flags & DIV_U71) { - /* Init safe 7.1 divider value (does not affect PLLX path) */ - clk_writel(SUPER_CLOCK_DIV_U71_MIN << SUPER_CLOCK_DIV_U71_SHIFT, - c->reg + SUPER_CLK_DIVIDER); - c->mul = 2; - c->div = 2; - if (!(p->flags & PLLX)) - c->div += SUPER_CLOCK_DIV_U71_MIN; - } else - clk_writel(0, c->reg + SUPER_CLK_DIVIDER); -} - -static u8 tegra30_super_clk_get_parent(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - int source; - int shift; - - val = clk_readl(c->reg + SUPER_CLK_MUX); - BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && - ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); - shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? - SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; - source = (val >> shift) & SUPER_SOURCE_MASK; - if (c->flags & DIV_2) - source |= val & SUPER_LP_DIV2_BYPASS; - - return source; -} - -static int tegra30_super_clk_set_parent(struct clk_hw *hw, u8 index) -{ - struct clk_tegra *c = to_clk_tegra(hw); - struct clk_tegra *p = - to_clk_tegra(__clk_get_hw(clk_get_parent(hw->clk))); - u32 val; - int shift; - - val = clk_readl(c->reg + SUPER_CLK_MUX); - BUG_ON(((val & SUPER_STATE_MASK) != SUPER_STATE_RUN) && - ((val & SUPER_STATE_MASK) != SUPER_STATE_IDLE)); - shift = ((val & SUPER_STATE_MASK) == SUPER_STATE_IDLE) ? - SUPER_IDLE_SOURCE_SHIFT : SUPER_RUN_SOURCE_SHIFT; - - /* For LP mode super-clock switch between PLLX direct - and divided-by-2 outputs is allowed only when other - than PLLX clock source is current parent */ - if ((c->flags & DIV_2) && (p->flags & PLLX) && - ((index ^ val) & SUPER_LP_DIV2_BYPASS)) { - if (p->flags & PLLX) - return -EINVAL; - val ^= SUPER_LP_DIV2_BYPASS; - clk_writel_delay(val, c->reg); - } - val &= ~(SUPER_SOURCE_MASK << shift); - val |= (index & SUPER_SOURCE_MASK) << shift; - - /* 7.1 divider for CPU super-clock does not affect - PLLX path */ - if (c->flags & DIV_U71) { - u32 div = 0; - if (!(p->flags & PLLX)) { - div = clk_readl(c->reg + - SUPER_CLK_DIVIDER); - div &= SUPER_CLOCK_DIV_U71_MASK; - div >>= SUPER_CLOCK_DIV_U71_SHIFT; - } - c->div = div + 2; - c->mul = 2; - } - clk_writel_delay(val, c->reg); - - return 0; -} - -/* - * Do not use super clocks "skippers", since dividing using a clock skipper - * does not allow the voltage to be scaled down. Instead adjust the rate of - * the parent clock. This requires that the parent of a super clock have no - * other children, otherwise the rate will change underneath the other - * children. Special case: if fixed rate PLL is CPU super clock parent the - * rate of this PLL can't be changed, and it has many other children. In - * this case use 7.1 fractional divider to adjust the super clock rate. - */ -static int tegra30_super_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - struct clk *parent = __clk_get_parent(hw->clk); - struct clk_tegra *cparent = to_clk_tegra(__clk_get_hw(parent)); - - if ((c->flags & DIV_U71) && (cparent->flags & PLL_FIXED)) { - int div = clk_div71_get_divider(parent_rate, - rate, c->flags, ROUND_DIVIDER_DOWN); - div = max(div, SUPER_CLOCK_DIV_U71_MIN); - - clk_writel(div << SUPER_CLOCK_DIV_U71_SHIFT, - c->reg + SUPER_CLK_DIVIDER); - c->div = div + 2; - c->mul = 2; - return 0; - } - return 0; -} - -static unsigned long tegra30_super_clk_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = parent_rate; - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - - return rate; -} - -static long tegra30_super_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - struct clk *parent = __clk_get_parent(hw->clk); - struct clk_tegra *cparent = to_clk_tegra(__clk_get_hw(parent)); - int mul = 2; - int div; - - if ((c->flags & DIV_U71) && (cparent->flags & PLL_FIXED)) { - div = clk_div71_get_divider(*prate, - rate, c->flags, ROUND_DIVIDER_DOWN); - div = max(div, SUPER_CLOCK_DIV_U71_MIN) + 2; - rate = *prate * mul; - rate += div - 1; /* round up */ - do_div(rate, c->div); - - return rate; - } - return *prate; -} - -struct clk_ops tegra30_super_ops = { - .init = tegra30_super_clk_init, - .set_parent = tegra30_super_clk_set_parent, - .get_parent = tegra30_super_clk_get_parent, - .recalc_rate = tegra30_super_clk_recalc_rate, - .round_rate = tegra30_super_clk_round_rate, - .set_rate = tegra30_super_clk_set_rate, -}; - -static unsigned long tegra30_twd_clk_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = parent_rate; - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - - return rate; -} - -struct clk_ops tegra30_twd_ops = { - .recalc_rate = tegra30_twd_clk_recalc_rate, -}; - -/* bus clock functions */ -static int tegra30_bus_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - - c->state = ((val >> c->reg_shift) & BUS_CLK_DISABLE) ? OFF : ON; - return c->state; -} - -static int tegra30_bus_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - val = clk_readl(c->reg); - val &= ~(BUS_CLK_DISABLE << c->reg_shift); - clk_writel(val, c->reg); - - return 0; -} - -static void tegra30_bus_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - val = clk_readl(c->reg); - val |= BUS_CLK_DISABLE << c->reg_shift; - clk_writel(val, c->reg); -} - -static unsigned long tegra30_bus_clk_recalc_rate(struct clk_hw *hw, - unsigned long prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - u64 rate = prate; - - c->div = ((val >> c->reg_shift) & BUS_CLK_DIV_MASK) + 1; - c->mul = 1; - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - return rate; -} - -static int tegra30_bus_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - int ret = -EINVAL; - u32 val; - int i; - - val = clk_readl(c->reg); - for (i = 1; i <= 4; i++) { - if (rate == parent_rate / i) { - val &= ~(BUS_CLK_DIV_MASK << c->reg_shift); - val |= (i - 1) << c->reg_shift; - clk_writel(val, c->reg); - c->div = i; - c->mul = 1; - ret = 0; - break; - } - } - - return ret; -} - -static long tegra30_bus_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - unsigned long parent_rate = *prate; - s64 divider; - - if (rate >= parent_rate) - return parent_rate; - - divider = parent_rate; - divider += rate - 1; - do_div(divider, rate); - - if (divider < 0) - return divider; - - if (divider > 4) - divider = 4; - do_div(parent_rate, divider); - - return parent_rate; -} - -struct clk_ops tegra30_bus_ops = { - .is_enabled = tegra30_bus_clk_is_enabled, - .enable = tegra30_bus_clk_enable, - .disable = tegra30_bus_clk_disable, - .set_rate = tegra30_bus_clk_set_rate, - .round_rate = tegra30_bus_clk_round_rate, - .recalc_rate = tegra30_bus_clk_recalc_rate, -}; - -/* Blink output functions */ -static int tegra30_blink_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - val = pmc_readl(PMC_CTRL); - c->state = (val & PMC_CTRL_BLINK_ENB) ? ON : OFF; - return c->state; -} - -static int tegra30_blink_clk_enable(struct clk_hw *hw) -{ - u32 val; - - val = pmc_readl(PMC_DPD_PADS_ORIDE); - pmc_writel(val | PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE); - - val = pmc_readl(PMC_CTRL); - pmc_writel(val | PMC_CTRL_BLINK_ENB, PMC_CTRL); - - return 0; -} - -static void tegra30_blink_clk_disable(struct clk_hw *hw) -{ - u32 val; - - val = pmc_readl(PMC_CTRL); - pmc_writel(val & ~PMC_CTRL_BLINK_ENB, PMC_CTRL); - - val = pmc_readl(PMC_DPD_PADS_ORIDE); - pmc_writel(val & ~PMC_DPD_PADS_ORIDE_BLINK_ENB, PMC_DPD_PADS_ORIDE); -} - -static int tegra30_blink_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - if (rate >= parent_rate) { - c->div = 1; - pmc_writel(0, c->reg); - } else { - unsigned int on_off; - u32 val; - - on_off = DIV_ROUND_UP(parent_rate / 8, rate); - c->div = on_off * 8; - - val = (on_off & PMC_BLINK_TIMER_DATA_ON_MASK) << - PMC_BLINK_TIMER_DATA_ON_SHIFT; - on_off &= PMC_BLINK_TIMER_DATA_OFF_MASK; - on_off <<= PMC_BLINK_TIMER_DATA_OFF_SHIFT; - val |= on_off; - val |= PMC_BLINK_TIMER_ENB; - pmc_writel(val, c->reg); - } - - return 0; -} - -static unsigned long tegra30_blink_clk_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = parent_rate; - u32 val; - u32 mul; - u32 div; - u32 on_off; - - mul = 1; - val = pmc_readl(c->reg); - - if (val & PMC_BLINK_TIMER_ENB) { - on_off = (val >> PMC_BLINK_TIMER_DATA_ON_SHIFT) & - PMC_BLINK_TIMER_DATA_ON_MASK; - val >>= PMC_BLINK_TIMER_DATA_OFF_SHIFT; - val &= PMC_BLINK_TIMER_DATA_OFF_MASK; - on_off += val; - /* each tick in the blink timer is 4 32KHz clocks */ - div = on_off * 4; - } else { - div = 1; - } - - if (mul != 0 && div != 0) { - rate *= mul; - rate += div - 1; /* round up */ - do_div(rate, div); - } - return rate; -} - -static long tegra30_blink_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - int div; - int mul; - long round_rate = *prate; - - mul = 1; - - if (rate >= *prate) { - div = 1; - } else { - div = DIV_ROUND_UP(*prate / 8, rate); - div *= 8; - } - - round_rate *= mul; - round_rate += div - 1; - do_div(round_rate, div); - - return round_rate; -} - -struct clk_ops tegra30_blink_clk_ops = { - .is_enabled = tegra30_blink_clk_is_enabled, - .enable = tegra30_blink_clk_enable, - .disable = tegra30_blink_clk_disable, - .recalc_rate = tegra30_blink_clk_recalc_rate, - .round_rate = tegra30_blink_clk_round_rate, - .set_rate = tegra30_blink_clk_set_rate, -}; - -static void tegra30_utmi_param_configure(struct clk_hw *hw) -{ - unsigned long main_rate = - __clk_get_rate(__clk_get_parent(__clk_get_parent(hw->clk))); - u32 reg; - int i; - - for (i = 0; i < ARRAY_SIZE(utmi_parameters); i++) { - if (main_rate == utmi_parameters[i].osc_frequency) - break; - } - - if (i >= ARRAY_SIZE(utmi_parameters)) { - pr_err("%s: Unexpected main rate %lu\n", __func__, main_rate); - return; - } - - reg = clk_readl(UTMIP_PLL_CFG2); - - /* Program UTMIP PLL stable and active counts */ - /* [FIXME] arclk_rst.h says WRONG! This should be 1ms -> 0x50 Check! */ - reg &= ~UTMIP_PLL_CFG2_STABLE_COUNT(~0); - reg |= UTMIP_PLL_CFG2_STABLE_COUNT( - utmi_parameters[i].stable_count); - - reg &= ~UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT(~0); - - reg |= UTMIP_PLL_CFG2_ACTIVE_DLY_COUNT( - utmi_parameters[i].active_delay_count); - - /* Remove power downs from UTMIP PLL control bits */ - reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_A_POWERDOWN; - reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_B_POWERDOWN; - reg &= ~UTMIP_PLL_CFG2_FORCE_PD_SAMP_C_POWERDOWN; - - clk_writel(reg, UTMIP_PLL_CFG2); - - /* Program UTMIP PLL delay and oscillator frequency counts */ - reg = clk_readl(UTMIP_PLL_CFG1); - reg &= ~UTMIP_PLL_CFG1_ENABLE_DLY_COUNT(~0); - - reg |= UTMIP_PLL_CFG1_ENABLE_DLY_COUNT( - utmi_parameters[i].enable_delay_count); - - reg &= ~UTMIP_PLL_CFG1_XTAL_FREQ_COUNT(~0); - reg |= UTMIP_PLL_CFG1_XTAL_FREQ_COUNT( - utmi_parameters[i].xtal_freq_count); - - /* Remove power downs from UTMIP PLL control bits */ - reg &= ~UTMIP_PLL_CFG1_FORCE_PLL_ENABLE_POWERDOWN; - reg &= ~UTMIP_PLL_CFG1_FORCE_PLL_ACTIVE_POWERDOWN; - reg &= ~UTMIP_PLL_CFG1_FORCE_PLLU_POWERDOWN; - - clk_writel(reg, UTMIP_PLL_CFG1); -} - -/* PLL Functions */ -static int tegra30_pll_clk_wait_for_lock(struct clk_tegra *c, u32 lock_reg, - u32 lock_bit) -{ - int ret = 0; - -#if USE_PLL_LOCK_BITS - int i; - for (i = 0; i < c->u.pll.lock_delay; i++) { - if (clk_readl(lock_reg) & lock_bit) { - udelay(PLL_POST_LOCK_DELAY); - return 0; - } - udelay(2); /* timeout = 2 * lock time */ - } - pr_err("Timed out waiting for lock bit on pll %s", - __clk_get_name(hw->clk)); - ret = -1; -#else - udelay(c->u.pll.lock_delay); -#endif - return ret; -} - -static int tegra30_pll_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg + PLL_BASE); - - c->state = (val & PLL_BASE_ENABLE) ? ON : OFF; - return c->state; -} - -static void tegra30_pll_clk_init(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - if (c->flags & PLLU) - tegra30_utmi_param_configure(hw); -} - -static int tegra30_pll_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); - -#if USE_PLL_LOCK_BITS - val = clk_readl(c->reg + PLL_MISC(c)); - val |= PLL_MISC_LOCK_ENABLE(c); - clk_writel(val, c->reg + PLL_MISC(c)); -#endif - val = clk_readl(c->reg + PLL_BASE); - val &= ~PLL_BASE_BYPASS; - val |= PLL_BASE_ENABLE; - clk_writel(val, c->reg + PLL_BASE); - - if (c->flags & PLLM) { - val = pmc_readl(PMC_PLLP_WB0_OVERRIDE); - val |= PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE; - pmc_writel(val, PMC_PLLP_WB0_OVERRIDE); - } - - tegra30_pll_clk_wait_for_lock(c, c->reg + PLL_BASE, PLL_BASE_LOCK); - - return 0; -} - -static void tegra30_pll_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - pr_debug("%s on clock %s\n", __func__, __clk_get_name(hw->clk)); - - val = clk_readl(c->reg); - val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE); - clk_writel(val, c->reg); - - if (c->flags & PLLM) { - val = pmc_readl(PMC_PLLP_WB0_OVERRIDE); - val &= ~PMC_PLLP_WB0_OVERRIDE_PLLM_ENABLE; - pmc_writel(val, PMC_PLLP_WB0_OVERRIDE); - } -} - -static int tegra30_pll_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val, p_div, old_base; - unsigned long input_rate; - const struct clk_pll_freq_table *sel; - struct clk_pll_freq_table cfg; - - if (c->flags & PLL_FIXED) { - int ret = 0; - if (rate != c->u.pll.fixed_rate) { - pr_err("%s: Can not change %s fixed rate %lu to %lu\n", - __func__, __clk_get_name(hw->clk), - c->u.pll.fixed_rate, rate); - ret = -EINVAL; - } - return ret; - } - - if (c->flags & PLLM) { - if (rate != __clk_get_rate(hw->clk)) { - pr_err("%s: Can not change memory %s rate in flight\n", - __func__, __clk_get_name(hw->clk)); - return -EINVAL; - } - } - - p_div = 0; - input_rate = parent_rate; - - /* Check if the target rate is tabulated */ - for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { - if (sel->input_rate == input_rate && sel->output_rate == rate) { - if (c->flags & PLLU) { - BUG_ON(sel->p < 1 || sel->p > 2); - if (sel->p == 1) - p_div = PLLU_BASE_POST_DIV; - } else { - BUG_ON(sel->p < 1); - for (val = sel->p; val > 1; val >>= 1) - p_div++; - p_div <<= PLL_BASE_DIVP_SHIFT; - } - break; - } - } - - /* Configure out-of-table rate */ - if (sel->input_rate == 0) { - unsigned long cfreq; - BUG_ON(c->flags & PLLU); - sel = &cfg; - - switch (input_rate) { - case 12000000: - case 26000000: - cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2000000; - break; - case 13000000: - cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2600000; - break; - case 16800000: - case 19200000: - cfreq = (rate <= 1200000 * 1000) ? 1200000 : 2400000; - break; - default: - pr_err("%s: Unexpected reference rate %lu\n", - __func__, input_rate); - BUG(); - } - - /* Raise VCO to guarantee 0.5% accuracy */ - for (cfg.output_rate = rate; cfg.output_rate < 200 * cfreq; - cfg.output_rate <<= 1) - p_div++; - - cfg.p = 0x1 << p_div; - cfg.m = input_rate / cfreq; - cfg.n = cfg.output_rate / cfreq; - cfg.cpcon = OUT_OF_TABLE_CPCON; - - if ((cfg.m > (PLL_BASE_DIVM_MASK >> PLL_BASE_DIVM_SHIFT)) || - (cfg.n > (PLL_BASE_DIVN_MASK >> PLL_BASE_DIVN_SHIFT)) || - (p_div > (PLL_BASE_DIVP_MASK >> PLL_BASE_DIVP_SHIFT)) || - (cfg.output_rate > c->u.pll.vco_max)) { - pr_err("%s: Failed to set %s out-of-table rate %lu\n", - __func__, __clk_get_name(hw->clk), rate); - return -EINVAL; - } - p_div <<= PLL_BASE_DIVP_SHIFT; - } - - c->mul = sel->n; - c->div = sel->m * sel->p; - - old_base = val = clk_readl(c->reg + PLL_BASE); - val &= ~(PLL_BASE_DIVM_MASK | PLL_BASE_DIVN_MASK | - ((c->flags & PLLU) ? PLLU_BASE_POST_DIV : PLL_BASE_DIVP_MASK)); - val |= (sel->m << PLL_BASE_DIVM_SHIFT) | - (sel->n << PLL_BASE_DIVN_SHIFT) | p_div; - if (val == old_base) - return 0; - - if (c->state == ON) { - tegra30_pll_clk_disable(hw); - val &= ~(PLL_BASE_BYPASS | PLL_BASE_ENABLE); - } - clk_writel(val, c->reg + PLL_BASE); - - if (c->flags & PLL_HAS_CPCON) { - val = clk_readl(c->reg + PLL_MISC(c)); - val &= ~PLL_MISC_CPCON_MASK; - val |= sel->cpcon << PLL_MISC_CPCON_SHIFT; - if (c->flags & (PLLU | PLLD)) { - val &= ~PLL_MISC_LFCON_MASK; - if (sel->n >= PLLDU_LFCON_SET_DIVN) - val |= 0x1 << PLL_MISC_LFCON_SHIFT; - } else if (c->flags & (PLLX | PLLM)) { - val &= ~(0x1 << PLL_MISC_DCCON_SHIFT); - if (rate >= (c->u.pll.vco_max >> 1)) - val |= 0x1 << PLL_MISC_DCCON_SHIFT; - } - clk_writel(val, c->reg + PLL_MISC(c)); - } - - if (c->state == ON) - tegra30_pll_clk_enable(hw); - - c->u.pll.fixed_rate = rate; - - return 0; -} - -static long tegra30_pll_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long input_rate = *prate; - u64 output_rate = *prate; - const struct clk_pll_freq_table *sel; - struct clk_pll_freq_table cfg; - int mul; - int div; - u32 p_div; - u32 val; - - if (c->flags & PLL_FIXED) - return c->u.pll.fixed_rate; - - if (c->flags & PLLM) - return __clk_get_rate(hw->clk); - - p_div = 0; - /* Check if the target rate is tabulated */ - for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { - if (sel->input_rate == input_rate && sel->output_rate == rate) { - if (c->flags & PLLU) { - BUG_ON(sel->p < 1 || sel->p > 2); - if (sel->p == 1) - p_div = PLLU_BASE_POST_DIV; - } else { - BUG_ON(sel->p < 1); - for (val = sel->p; val > 1; val >>= 1) - p_div++; - p_div <<= PLL_BASE_DIVP_SHIFT; - } - break; - } - } - - if (sel->input_rate == 0) { - unsigned long cfreq; - BUG_ON(c->flags & PLLU); - sel = &cfg; - - switch (input_rate) { - case 12000000: - case 26000000: - cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2000000; - break; - case 13000000: - cfreq = (rate <= 1000000 * 1000) ? 1000000 : 2600000; - break; - case 16800000: - case 19200000: - cfreq = (rate <= 1200000 * 1000) ? 1200000 : 2400000; - break; - default: - pr_err("%s: Unexpected reference rate %lu\n", - __func__, input_rate); - BUG(); - } - - /* Raise VCO to guarantee 0.5% accuracy */ - for (cfg.output_rate = rate; cfg.output_rate < 200 * cfreq; - cfg.output_rate <<= 1) - p_div++; - - cfg.p = 0x1 << p_div; - cfg.m = input_rate / cfreq; - cfg.n = cfg.output_rate / cfreq; - } - - mul = sel->n; - div = sel->m * sel->p; - - output_rate *= mul; - output_rate += div - 1; /* round up */ - do_div(output_rate, div); - - return output_rate; -} - -static unsigned long tegra30_pll_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = parent_rate; - u32 val = clk_readl(c->reg + PLL_BASE); - - if (c->flags & PLL_FIXED && !(val & PLL_BASE_OVERRIDE)) { - const struct clk_pll_freq_table *sel; - for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { - if (sel->input_rate == parent_rate && - sel->output_rate == c->u.pll.fixed_rate) { - c->mul = sel->n; - c->div = sel->m * sel->p; - break; - } - } - pr_err("Clock %s has unknown fixed frequency\n", - __clk_get_name(hw->clk)); - BUG(); - } else if (val & PLL_BASE_BYPASS) { - c->mul = 1; - c->div = 1; - } else { - c->mul = (val & PLL_BASE_DIVN_MASK) >> PLL_BASE_DIVN_SHIFT; - c->div = (val & PLL_BASE_DIVM_MASK) >> PLL_BASE_DIVM_SHIFT; - if (c->flags & PLLU) - c->div *= (val & PLLU_BASE_POST_DIV) ? 1 : 2; - else - c->div *= (0x1 << ((val & PLL_BASE_DIVP_MASK) >> - PLL_BASE_DIVP_SHIFT)); - } - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - - return rate; -} - -struct clk_ops tegra30_pll_ops = { - .is_enabled = tegra30_pll_clk_is_enabled, - .init = tegra30_pll_clk_init, - .enable = tegra30_pll_clk_enable, - .disable = tegra30_pll_clk_disable, - .recalc_rate = tegra30_pll_recalc_rate, - .round_rate = tegra30_pll_round_rate, - .set_rate = tegra30_pll_clk_set_rate, -}; - -int tegra30_plld_clk_cfg_ex(struct clk_hw *hw, - enum tegra_clk_ex_param p, u32 setting) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val, mask, reg; - - switch (p) { - case TEGRA_CLK_PLLD_CSI_OUT_ENB: - mask = PLLD_BASE_CSI_CLKENABLE; - reg = c->reg + PLL_BASE; - break; - case TEGRA_CLK_PLLD_DSI_OUT_ENB: - mask = PLLD_MISC_DSI_CLKENABLE; - reg = c->reg + PLL_MISC(c); - break; - case TEGRA_CLK_PLLD_MIPI_MUX_SEL: - if (!(c->flags & PLL_ALT_MISC_REG)) { - mask = PLLD_BASE_DSIB_MUX_MASK; - reg = c->reg + PLL_BASE; - break; - } - /* fall through - error since PLLD2 does not have MUX_SEL control */ - default: - return -EINVAL; - } - - val = clk_readl(reg); - if (setting) - val |= mask; - else - val &= ~mask; - clk_writel(val, reg); - return 0; -} - -static int tegra30_plle_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - val = clk_readl(c->reg + PLL_BASE); - c->state = (val & PLLE_BASE_ENABLE) ? ON : OFF; - return c->state; -} - -static void tegra30_plle_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - val = clk_readl(c->reg + PLL_BASE); - val &= ~(PLLE_BASE_CML_ENABLE | PLLE_BASE_ENABLE); - clk_writel(val, c->reg + PLL_BASE); -} - -static void tegra30_plle_training(struct clk_tegra *c) -{ - u32 val; - - /* PLLE is already disabled, and setup cleared; - * create falling edge on PLLE IDDQ input */ - val = pmc_readl(PMC_SATA_PWRGT); - val |= PMC_SATA_PWRGT_PLLE_IDDQ_VALUE; - pmc_writel(val, PMC_SATA_PWRGT); - - val = pmc_readl(PMC_SATA_PWRGT); - val |= PMC_SATA_PWRGT_PLLE_IDDQ_SWCTL; - pmc_writel(val, PMC_SATA_PWRGT); - - val = pmc_readl(PMC_SATA_PWRGT); - val &= ~PMC_SATA_PWRGT_PLLE_IDDQ_VALUE; - pmc_writel(val, PMC_SATA_PWRGT); - - do { - val = clk_readl(c->reg + PLL_MISC(c)); - } while (!(val & PLLE_MISC_READY)); -} - -static int tegra30_plle_configure(struct clk_hw *hw, bool force_training) -{ - struct clk_tegra *c = to_clk_tegra(hw); - struct clk *parent = __clk_get_parent(hw->clk); - const struct clk_pll_freq_table *sel; - u32 val; - - unsigned long rate = c->u.pll.fixed_rate; - unsigned long input_rate = __clk_get_rate(parent); - - for (sel = c->u.pll.freq_table; sel->input_rate != 0; sel++) { - if (sel->input_rate == input_rate && sel->output_rate == rate) - break; - } - - if (sel->input_rate == 0) - return -ENOSYS; - - /* disable PLLE, clear setup fiels */ - tegra30_plle_clk_disable(hw); - - val = clk_readl(c->reg + PLL_MISC(c)); - val &= ~(PLLE_MISC_LOCK_ENABLE | PLLE_MISC_SETUP_MASK); - clk_writel(val, c->reg + PLL_MISC(c)); - - /* training */ - val = clk_readl(c->reg + PLL_MISC(c)); - if (force_training || (!(val & PLLE_MISC_READY))) - tegra30_plle_training(c); - - /* configure dividers, setup, disable SS */ - val = clk_readl(c->reg + PLL_BASE); - val &= ~PLLE_BASE_DIV_MASK; - val |= PLLE_BASE_DIV(sel->m, sel->n, sel->p, sel->cpcon); - clk_writel(val, c->reg + PLL_BASE); - c->mul = sel->n; - c->div = sel->m * sel->p; - - val = clk_readl(c->reg + PLL_MISC(c)); - val |= PLLE_MISC_SETUP_VALUE; - val |= PLLE_MISC_LOCK_ENABLE; - clk_writel(val, c->reg + PLL_MISC(c)); - - val = clk_readl(PLLE_SS_CTRL); - val |= PLLE_SS_DISABLE; - clk_writel(val, PLLE_SS_CTRL); - - /* enable and lock PLLE*/ - val = clk_readl(c->reg + PLL_BASE); - val |= (PLLE_BASE_CML_ENABLE | PLLE_BASE_ENABLE); - clk_writel(val, c->reg + PLL_BASE); - - tegra30_pll_clk_wait_for_lock(c, c->reg + PLL_MISC(c), PLLE_MISC_LOCK); - - return 0; -} - -static int tegra30_plle_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - return tegra30_plle_configure(hw, !c->set); -} - -static unsigned long tegra30_plle_clk_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long rate = parent_rate; - u32 val; - - val = clk_readl(c->reg + PLL_BASE); - c->mul = (val & PLLE_BASE_DIVN_MASK) >> PLLE_BASE_DIVN_SHIFT; - c->div = (val & PLLE_BASE_DIVM_MASK) >> PLLE_BASE_DIVM_SHIFT; - c->div *= (val & PLLE_BASE_DIVP_MASK) >> PLLE_BASE_DIVP_SHIFT; - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - return rate; -} - -struct clk_ops tegra30_plle_ops = { - .is_enabled = tegra30_plle_clk_is_enabled, - .enable = tegra30_plle_clk_enable, - .disable = tegra30_plle_clk_disable, - .recalc_rate = tegra30_plle_clk_recalc_rate, -}; - -/* Clock divider ops */ -static int tegra30_pll_div_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - if (c->flags & DIV_U71) { - u32 val = clk_readl(c->reg); - val >>= c->reg_shift; - c->state = (val & PLL_OUT_CLKEN) ? ON : OFF; - if (!(val & PLL_OUT_RESET_DISABLE)) - c->state = OFF; - } else { - c->state = ON; - } - return c->state; -} - -static int tegra30_pll_div_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - u32 new_val; - - pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk)); - if (c->flags & DIV_U71) { - val = clk_readl(c->reg); - new_val = val >> c->reg_shift; - new_val &= 0xFFFF; - - new_val |= PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE; - - val &= ~(0xFFFF << c->reg_shift); - val |= new_val << c->reg_shift; - clk_writel_delay(val, c->reg); - return 0; - } else if (c->flags & DIV_2) { - return 0; - } - return -EINVAL; -} - -static void tegra30_pll_div_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - u32 new_val; - - pr_debug("%s: %s\n", __func__, __clk_get_name(hw->clk)); - if (c->flags & DIV_U71) { - val = clk_readl(c->reg); - new_val = val >> c->reg_shift; - new_val &= 0xFFFF; - - new_val &= ~(PLL_OUT_CLKEN | PLL_OUT_RESET_DISABLE); - - val &= ~(0xFFFF << c->reg_shift); - val |= new_val << c->reg_shift; - clk_writel_delay(val, c->reg); - } -} - -static int tegra30_pll_div_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - u32 new_val; - int divider_u71; - - if (c->flags & DIV_U71) { - divider_u71 = clk_div71_get_divider( - parent_rate, rate, c->flags, ROUND_DIVIDER_UP); - if (divider_u71 >= 0) { - val = clk_readl(c->reg); - new_val = val >> c->reg_shift; - new_val &= 0xFFFF; - if (c->flags & DIV_U71_FIXED) - new_val |= PLL_OUT_OVERRIDE; - new_val &= ~PLL_OUT_RATIO_MASK; - new_val |= divider_u71 << PLL_OUT_RATIO_SHIFT; - - val &= ~(0xFFFF << c->reg_shift); - val |= new_val << c->reg_shift; - clk_writel_delay(val, c->reg); - c->div = divider_u71 + 2; - c->mul = 2; - c->fixed_rate = rate; - return 0; - } - } else if (c->flags & DIV_2) { - c->fixed_rate = rate; - return 0; - } - - return -EINVAL; -} - -static unsigned long tegra30_pll_div_clk_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = parent_rate; - - if (c->flags & DIV_U71) { - u32 divu71; - u32 val = clk_readl(c->reg); - val >>= c->reg_shift; - - divu71 = (val & PLL_OUT_RATIO_MASK) >> PLL_OUT_RATIO_SHIFT; - c->div = (divu71 + 2); - c->mul = 2; - } else if (c->flags & DIV_2) { - if (c->flags & (PLLD | PLLX)) { - c->div = 2; - c->mul = 1; - } else - BUG(); - } else { - c->div = 1; - c->mul = 1; - } - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - - return rate; -} - -static long tegra30_pll_div_clk_round_rate(struct clk_hw *hw, - unsigned long rate, unsigned long *prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long parent_rate = __clk_get_rate(__clk_get_parent(hw->clk)); - int divider; - - if (prate) - parent_rate = *prate; - - if (c->flags & DIV_U71) { - divider = clk_div71_get_divider( - parent_rate, rate, c->flags, ROUND_DIVIDER_UP); - if (divider < 0) - return divider; - return DIV_ROUND_UP(parent_rate * 2, divider + 2); - } else if (c->flags & DIV_2) { - *prate = rate * 2; - return rate; - } - - return -EINVAL; -} - -struct clk_ops tegra30_pll_div_ops = { - .is_enabled = tegra30_pll_div_clk_is_enabled, - .enable = tegra30_pll_div_clk_enable, - .disable = tegra30_pll_div_clk_disable, - .set_rate = tegra30_pll_div_clk_set_rate, - .recalc_rate = tegra30_pll_div_clk_recalc_rate, - .round_rate = tegra30_pll_div_clk_round_rate, -}; - -/* Periph clk ops */ -static inline u32 periph_clk_source_mask(struct clk_tegra *c) -{ - if (c->flags & MUX8) - return 7 << 29; - else if (c->flags & MUX_PWM) - return 3 << 28; - else if (c->flags & MUX_CLK_OUT) - return 3 << (c->u.periph.clk_num + 4); - else if (c->flags & PLLD) - return PLLD_BASE_DSIB_MUX_MASK; - else - return 3 << 30; -} - -static inline u32 periph_clk_source_shift(struct clk_tegra *c) -{ - if (c->flags & MUX8) - return 29; - else if (c->flags & MUX_PWM) - return 28; - else if (c->flags & MUX_CLK_OUT) - return c->u.periph.clk_num + 4; - else if (c->flags & PLLD) - return PLLD_BASE_DSIB_MUX_SHIFT; - else - return 30; -} - -static int tegra30_periph_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - c->state = ON; - if (!(clk_readl(PERIPH_CLK_TO_ENB_REG(c)) & PERIPH_CLK_TO_BIT(c))) - c->state = OFF; - if (!(c->flags & PERIPH_NO_RESET)) - if (clk_readl(PERIPH_CLK_TO_RST_REG(c)) & PERIPH_CLK_TO_BIT(c)) - c->state = OFF; - return c->state; -} - -static int tegra30_periph_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - tegra_periph_clk_enable_refcount[c->u.periph.clk_num]++; - if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 1) - return 0; - - clk_writel_delay(PERIPH_CLK_TO_BIT(c), PERIPH_CLK_TO_ENB_SET_REG(c)); - if (!(c->flags & PERIPH_NO_RESET) && - !(c->flags & PERIPH_MANUAL_RESET)) { - if (clk_readl(PERIPH_CLK_TO_RST_REG(c)) & - PERIPH_CLK_TO_BIT(c)) { - udelay(5); /* reset propagation delay */ - clk_writel(PERIPH_CLK_TO_BIT(c), - PERIPH_CLK_TO_RST_CLR_REG(c)); - } - } - return 0; -} - -static void tegra30_periph_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long val; - - tegra_periph_clk_enable_refcount[c->u.periph.clk_num]--; - - if (tegra_periph_clk_enable_refcount[c->u.periph.clk_num] > 0) - return; - - /* If peripheral is in the APB bus then read the APB bus to - * flush the write operation in apb bus. This will avoid the - * peripheral access after disabling clock*/ - if (c->flags & PERIPH_ON_APB) - val = chipid_readl(); - - clk_writel_delay(PERIPH_CLK_TO_BIT(c), PERIPH_CLK_TO_ENB_CLR_REG(c)); -} - -void tegra30_periph_clk_reset(struct clk_hw *hw, bool assert) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long val; - - if (!(c->flags & PERIPH_NO_RESET)) { - if (assert) { - /* If peripheral is in the APB bus then read the APB - * bus to flush the write operation in apb bus. This - * will avoid the peripheral access after disabling - * clock */ - if (c->flags & PERIPH_ON_APB) - val = chipid_readl(); - - clk_writel(PERIPH_CLK_TO_BIT(c), - PERIPH_CLK_TO_RST_SET_REG(c)); - } else - clk_writel(PERIPH_CLK_TO_BIT(c), - PERIPH_CLK_TO_RST_CLR_REG(c)); - } -} - -static int tegra30_periph_clk_set_parent(struct clk_hw *hw, u8 index) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - if (!(c->flags & MUX)) - return (index == 0) ? 0 : (-EINVAL); - - val = clk_readl(c->reg); - val &= ~periph_clk_source_mask(c); - val |= (index << periph_clk_source_shift(c)); - clk_writel_delay(val, c->reg); - return 0; -} - -static u8 tegra30_periph_clk_get_parent(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - int source = (val & periph_clk_source_mask(c)) >> - periph_clk_source_shift(c); - - if (!(c->flags & MUX)) - return 0; - - return source; -} - -static int tegra30_periph_clk_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - int divider; - - if (c->flags & DIV_U71) { - divider = clk_div71_get_divider( - parent_rate, rate, c->flags, ROUND_DIVIDER_UP); - if (divider >= 0) { - val = clk_readl(c->reg); - val &= ~PERIPH_CLK_SOURCE_DIVU71_MASK; - val |= divider; - if (c->flags & DIV_U71_UART) { - if (divider) - val |= PERIPH_CLK_UART_DIV_ENB; - else - val &= ~PERIPH_CLK_UART_DIV_ENB; - } - clk_writel_delay(val, c->reg); - c->div = divider + 2; - c->mul = 2; - return 0; - } - } else if (c->flags & DIV_U16) { - divider = clk_div16_get_divider(parent_rate, rate); - if (divider >= 0) { - val = clk_readl(c->reg); - val &= ~PERIPH_CLK_SOURCE_DIVU16_MASK; - val |= divider; - clk_writel_delay(val, c->reg); - c->div = divider + 1; - c->mul = 1; - return 0; - } - } else if (parent_rate <= rate) { - c->div = 1; - c->mul = 1; - return 0; - } - return -EINVAL; -} - -static long tegra30_periph_clk_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - unsigned long parent_rate = __clk_get_rate(__clk_get_parent(hw->clk)); - int divider; - - if (prate) - parent_rate = *prate; - - if (c->flags & DIV_U71) { - divider = clk_div71_get_divider( - parent_rate, rate, c->flags, ROUND_DIVIDER_UP); - if (divider < 0) - return divider; - - return DIV_ROUND_UP(parent_rate * 2, divider + 2); - } else if (c->flags & DIV_U16) { - divider = clk_div16_get_divider(parent_rate, rate); - if (divider < 0) - return divider; - return DIV_ROUND_UP(parent_rate, divider + 1); - } - return -EINVAL; -} - -static unsigned long tegra30_periph_clk_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = parent_rate; - u32 val = clk_readl(c->reg); - - if (c->flags & DIV_U71) { - u32 divu71 = val & PERIPH_CLK_SOURCE_DIVU71_MASK; - if ((c->flags & DIV_U71_UART) && - (!(val & PERIPH_CLK_UART_DIV_ENB))) { - divu71 = 0; - } - if (c->flags & DIV_U71_IDLE) { - val &= ~(PERIPH_CLK_SOURCE_DIVU71_MASK << - PERIPH_CLK_SOURCE_DIVIDLE_SHIFT); - val |= (PERIPH_CLK_SOURCE_DIVIDLE_VAL << - PERIPH_CLK_SOURCE_DIVIDLE_SHIFT); - clk_writel(val, c->reg); - } - c->div = divu71 + 2; - c->mul = 2; - } else if (c->flags & DIV_U16) { - u32 divu16 = val & PERIPH_CLK_SOURCE_DIVU16_MASK; - c->div = divu16 + 1; - c->mul = 1; - } else { - c->div = 1; - c->mul = 1; - } - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - return rate; -} - -struct clk_ops tegra30_periph_clk_ops = { - .is_enabled = tegra30_periph_clk_is_enabled, - .enable = tegra30_periph_clk_enable, - .disable = tegra30_periph_clk_disable, - .set_parent = tegra30_periph_clk_set_parent, - .get_parent = tegra30_periph_clk_get_parent, - .set_rate = tegra30_periph_clk_set_rate, - .round_rate = tegra30_periph_clk_round_rate, - .recalc_rate = tegra30_periph_clk_recalc_rate, -}; - -static int tegra30_dsib_clk_set_parent(struct clk_hw *hw, u8 index) -{ - struct clk *d = clk_get_sys(NULL, "pll_d"); - /* The DSIB parent selection bit is in PLLD base register */ - tegra_clk_cfg_ex( - d, TEGRA_CLK_PLLD_MIPI_MUX_SEL, index); - - return 0; -} - -struct clk_ops tegra30_dsib_clk_ops = { - .is_enabled = tegra30_periph_clk_is_enabled, - .enable = &tegra30_periph_clk_enable, - .disable = &tegra30_periph_clk_disable, - .set_parent = &tegra30_dsib_clk_set_parent, - .get_parent = &tegra30_periph_clk_get_parent, - .set_rate = &tegra30_periph_clk_set_rate, - .round_rate = &tegra30_periph_clk_round_rate, - .recalc_rate = &tegra30_periph_clk_recalc_rate, -}; - -/* Periph extended clock configuration ops */ -int tegra30_vi_clk_cfg_ex(struct clk_hw *hw, - enum tegra_clk_ex_param p, u32 setting) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - if (p == TEGRA_CLK_VI_INP_SEL) { - u32 val = clk_readl(c->reg); - val &= ~PERIPH_CLK_VI_SEL_EX_MASK; - val |= (setting << PERIPH_CLK_VI_SEL_EX_SHIFT) & - PERIPH_CLK_VI_SEL_EX_MASK; - clk_writel(val, c->reg); - return 0; - } - return -EINVAL; -} - -int tegra30_nand_clk_cfg_ex(struct clk_hw *hw, - enum tegra_clk_ex_param p, u32 setting) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - if (p == TEGRA_CLK_NAND_PAD_DIV2_ENB) { - u32 val = clk_readl(c->reg); - if (setting) - val |= PERIPH_CLK_NAND_DIV_EX_ENB; - else - val &= ~PERIPH_CLK_NAND_DIV_EX_ENB; - clk_writel(val, c->reg); - return 0; - } - return -EINVAL; -} - -int tegra30_dtv_clk_cfg_ex(struct clk_hw *hw, - enum tegra_clk_ex_param p, u32 setting) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - if (p == TEGRA_CLK_DTV_INVERT) { - u32 val = clk_readl(c->reg); - if (setting) - val |= PERIPH_CLK_DTV_POLARITY_INV; - else - val &= ~PERIPH_CLK_DTV_POLARITY_INV; - clk_writel(val, c->reg); - return 0; - } - return -EINVAL; -} - -/* Output clock ops */ - -static DEFINE_SPINLOCK(clk_out_lock); - -static int tegra30_clk_out_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = pmc_readl(c->reg); - - c->state = (val & (0x1 << c->u.periph.clk_num)) ? ON : OFF; - c->mul = 1; - c->div = 1; - return c->state; -} - -static int tegra30_clk_out_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - unsigned long flags; - - spin_lock_irqsave(&clk_out_lock, flags); - val = pmc_readl(c->reg); - val |= (0x1 << c->u.periph.clk_num); - pmc_writel(val, c->reg); - spin_unlock_irqrestore(&clk_out_lock, flags); - - return 0; -} - -static void tegra30_clk_out_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - unsigned long flags; - - spin_lock_irqsave(&clk_out_lock, flags); - val = pmc_readl(c->reg); - val &= ~(0x1 << c->u.periph.clk_num); - pmc_writel(val, c->reg); - spin_unlock_irqrestore(&clk_out_lock, flags); -} - -static int tegra30_clk_out_set_parent(struct clk_hw *hw, u8 index) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - unsigned long flags; - - spin_lock_irqsave(&clk_out_lock, flags); - val = pmc_readl(c->reg); - val &= ~periph_clk_source_mask(c); - val |= (index << periph_clk_source_shift(c)); - pmc_writel(val, c->reg); - spin_unlock_irqrestore(&clk_out_lock, flags); - - return 0; -} - -static u8 tegra30_clk_out_get_parent(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = pmc_readl(c->reg); - int source; - - source = (val & periph_clk_source_mask(c)) >> - periph_clk_source_shift(c); - return source; -} - -struct clk_ops tegra_clk_out_ops = { - .is_enabled = tegra30_clk_out_is_enabled, - .enable = tegra30_clk_out_enable, - .disable = tegra30_clk_out_disable, - .set_parent = tegra30_clk_out_set_parent, - .get_parent = tegra30_clk_out_get_parent, - .recalc_rate = tegra30_clk_fixed_recalc_rate, -}; - -/* Clock doubler ops */ -static int tegra30_clk_double_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - c->state = ON; - if (!(clk_readl(PERIPH_CLK_TO_ENB_REG(c)) & PERIPH_CLK_TO_BIT(c))) - c->state = OFF; - return c->state; -}; - -static int tegra30_clk_double_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - if (rate == parent_rate) { - val = clk_readl(c->reg) | (0x1 << c->reg_shift); - clk_writel(val, c->reg); - c->mul = 1; - c->div = 1; - return 0; - } else if (rate == 2 * parent_rate) { - val = clk_readl(c->reg) & (~(0x1 << c->reg_shift)); - clk_writel(val, c->reg); - c->mul = 2; - c->div = 1; - return 0; - } - return -EINVAL; -} - -static unsigned long tegra30_clk_double_recalc_rate(struct clk_hw *hw, - unsigned long parent_rate) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u64 rate = parent_rate; - - u32 val = clk_readl(c->reg); - c->mul = val & (0x1 << c->reg_shift) ? 1 : 2; - c->div = 1; - - if (c->mul != 0 && c->div != 0) { - rate *= c->mul; - rate += c->div - 1; /* round up */ - do_div(rate, c->div); - } - - return rate; -} - -static long tegra30_clk_double_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *prate) -{ - unsigned long output_rate = *prate; - - do_div(output_rate, 2); - return output_rate; -} - -struct clk_ops tegra30_clk_double_ops = { - .is_enabled = tegra30_clk_double_is_enabled, - .enable = tegra30_periph_clk_enable, - .disable = tegra30_periph_clk_disable, - .recalc_rate = tegra30_clk_double_recalc_rate, - .round_rate = tegra30_clk_double_round_rate, - .set_rate = tegra30_clk_double_set_rate, -}; - -/* Audio sync clock ops */ -struct clk_ops tegra_sync_source_ops = { - .recalc_rate = tegra30_clk_fixed_recalc_rate, -}; - -static int tegra30_audio_sync_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - c->state = (val & AUDIO_SYNC_DISABLE_BIT) ? OFF : ON; - return c->state; -} - -static int tegra30_audio_sync_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - clk_writel((val & (~AUDIO_SYNC_DISABLE_BIT)), c->reg); - return 0; -} - -static void tegra30_audio_sync_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - clk_writel((val | AUDIO_SYNC_DISABLE_BIT), c->reg); -} - -static int tegra30_audio_sync_clk_set_parent(struct clk_hw *hw, u8 index) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val; - - val = clk_readl(c->reg); - val &= ~AUDIO_SYNC_SOURCE_MASK; - val |= index; - - clk_writel(val, c->reg); - return 0; -} - -static u8 tegra30_audio_sync_clk_get_parent(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - int source; - - source = val & AUDIO_SYNC_SOURCE_MASK; - return source; -} - -struct clk_ops tegra30_audio_sync_clk_ops = { - .is_enabled = tegra30_audio_sync_clk_is_enabled, - .enable = tegra30_audio_sync_clk_enable, - .disable = tegra30_audio_sync_clk_disable, - .set_parent = tegra30_audio_sync_clk_set_parent, - .get_parent = tegra30_audio_sync_clk_get_parent, - .recalc_rate = tegra30_clk_fixed_recalc_rate, -}; - -/* cml0 (pcie), and cml1 (sata) clock ops */ -static int tegra30_cml_clk_is_enabled(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - u32 val = clk_readl(c->reg); - c->state = val & (0x1 << c->u.periph.clk_num) ? ON : OFF; - return c->state; -} - -static int tegra30_cml_clk_enable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - u32 val = clk_readl(c->reg); - val |= (0x1 << c->u.periph.clk_num); - clk_writel(val, c->reg); - - return 0; -} - -static void tegra30_cml_clk_disable(struct clk_hw *hw) -{ - struct clk_tegra *c = to_clk_tegra(hw); - - u32 val = clk_readl(c->reg); - val &= ~(0x1 << c->u.periph.clk_num); - clk_writel(val, c->reg); -} - -struct clk_ops tegra_cml_clk_ops = { - .is_enabled = tegra30_cml_clk_is_enabled, - .enable = tegra30_cml_clk_enable, - .disable = tegra30_cml_clk_disable, - .recalc_rate = tegra30_clk_fixed_recalc_rate, -}; - -struct clk_ops tegra_pciex_clk_ops = { - .recalc_rate = tegra30_clk_fixed_recalc_rate, -}; - -/* Tegra30 CPU clock and reset control functions */ -static void tegra30_wait_cpu_in_reset(u32 cpu) -{ - unsigned int reg; - - do { - reg = readl(reg_clk_base + - TEGRA30_CLK_RST_CONTROLLER_CPU_CMPLX_STATUS); - cpu_relax(); - } while (!(reg & (1 << cpu))); /* check CPU been reset or not */ - - return; -} - -static void tegra30_put_cpu_in_reset(u32 cpu) -{ - writel(CPU_RESET(cpu), - reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_SET); - dmb(); -} - -static void tegra30_cpu_out_of_reset(u32 cpu) -{ - writel(CPU_RESET(cpu), - reg_clk_base + TEGRA_CLK_RST_CONTROLLER_RST_CPU_CMPLX_CLR); - wmb(); -} - -static void tegra30_enable_cpu_clock(u32 cpu) -{ - unsigned int reg; - - writel(CPU_CLOCK(cpu), - reg_clk_base + TEGRA30_CLK_RST_CONTROLLER_CLK_CPU_CMPLX_CLR); - reg = readl(reg_clk_base + - TEGRA30_CLK_RST_CONTROLLER_CLK_CPU_CMPLX_CLR); -} - -static void tegra30_disable_cpu_clock(u32 cpu) -{ - - unsigned int reg; - - reg = readl(reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); - writel(reg | CPU_CLOCK(cpu), - reg_clk_base + TEGRA_CLK_RST_CONTROLLER_CLK_CPU_CMPLX); -} - -#ifdef CONFIG_PM_SLEEP -static bool tegra30_cpu_rail_off_ready(void) -{ - unsigned int cpu_rst_status; - int cpu_pwr_status; - - cpu_rst_status = readl(reg_clk_base + - TEGRA30_CLK_RST_CONTROLLER_CPU_CMPLX_STATUS); - cpu_pwr_status = tegra_powergate_is_powered(TEGRA_POWERGATE_CPU1) || - tegra_powergate_is_powered(TEGRA_POWERGATE_CPU2) || - tegra_powergate_is_powered(TEGRA_POWERGATE_CPU3); - - if (((cpu_rst_status & 0xE) != 0xE) || cpu_pwr_status) - return false; - - return true; -} - -static void tegra30_cpu_clock_suspend(void) -{ - /* switch coresite to clk_m, save off original source */ - tegra30_cpu_clk_sctx.clk_csite_src = - readl(reg_clk_base + CLK_RESET_SOURCE_CSITE); - writel(3<<30, reg_clk_base + CLK_RESET_SOURCE_CSITE); - - tegra30_cpu_clk_sctx.cpu_burst = - readl(reg_clk_base + CLK_RESET_CCLK_BURST); - tegra30_cpu_clk_sctx.pllx_base = - readl(reg_clk_base + CLK_RESET_PLLX_BASE); - tegra30_cpu_clk_sctx.pllx_misc = - readl(reg_clk_base + CLK_RESET_PLLX_MISC); - tegra30_cpu_clk_sctx.cclk_divider = - readl(reg_clk_base + CLK_RESET_CCLK_DIVIDER); -} - -static void tegra30_cpu_clock_resume(void) -{ - unsigned int reg, policy; - - /* Is CPU complex already running on PLLX? */ - reg = readl(reg_clk_base + CLK_RESET_CCLK_BURST); - policy = (reg >> CLK_RESET_CCLK_BURST_POLICY_SHIFT) & 0xF; - - if (policy == CLK_RESET_CCLK_IDLE_POLICY) - reg = (reg >> CLK_RESET_CCLK_IDLE_POLICY_SHIFT) & 0xF; - else if (policy == CLK_RESET_CCLK_RUN_POLICY) - reg = (reg >> CLK_RESET_CCLK_RUN_POLICY_SHIFT) & 0xF; - else - BUG(); - - if (reg != CLK_RESET_CCLK_BURST_POLICY_PLLX) { - /* restore PLLX settings if CPU is on different PLL */ - writel(tegra30_cpu_clk_sctx.pllx_misc, - reg_clk_base + CLK_RESET_PLLX_MISC); - writel(tegra30_cpu_clk_sctx.pllx_base, - reg_clk_base + CLK_RESET_PLLX_BASE); - - /* wait for PLL stabilization if PLLX was enabled */ - if (tegra30_cpu_clk_sctx.pllx_base & (1 << 30)) - udelay(300); - } - - /* - * Restore original burst policy setting for calls resulting from CPU - * LP2 in idle or system suspend. - */ - writel(tegra30_cpu_clk_sctx.cclk_divider, - reg_clk_base + CLK_RESET_CCLK_DIVIDER); - writel(tegra30_cpu_clk_sctx.cpu_burst, - reg_clk_base + CLK_RESET_CCLK_BURST); - - writel(tegra30_cpu_clk_sctx.clk_csite_src, - reg_clk_base + CLK_RESET_SOURCE_CSITE); -} -#endif - -static struct tegra_cpu_car_ops tegra30_cpu_car_ops = { - .wait_for_reset = tegra30_wait_cpu_in_reset, - .put_in_reset = tegra30_put_cpu_in_reset, - .out_of_reset = tegra30_cpu_out_of_reset, - .enable_clock = tegra30_enable_cpu_clock, - .disable_clock = tegra30_disable_cpu_clock, -#ifdef CONFIG_PM_SLEEP - .rail_off_ready = tegra30_cpu_rail_off_ready, - .suspend = tegra30_cpu_clock_suspend, - .resume = tegra30_cpu_clock_resume, -#endif -}; - -void __init tegra30_cpu_car_ops_init(void) -{ - tegra_cpu_car_ops = &tegra30_cpu_car_ops; -} diff --git a/arch/arm/mach-tegra/tegra30_clocks.h b/arch/arm/mach-tegra/tegra30_clocks.h deleted file mode 100644 index 7a34adb2f72d..000000000000 --- a/arch/arm/mach-tegra/tegra30_clocks.h +++ /dev/null @@ -1,54 +0,0 @@ -/* - * Copyright (c) 2012, NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify it - * under the terms and conditions of the GNU General Public License, - * version 2, as published by the Free Software Foundation. - * - * This program is distributed in the hope it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License - * along with this program. If not, see . - */ - -#ifndef __MACH_TEGRA30_CLOCK_H -#define __MACH_TEGRA30_CLOCK_H - -extern struct clk_ops tegra30_clk_32k_ops; -extern struct clk_ops tegra30_clk_m_ops; -extern struct clk_ops tegra_clk_m_div_ops; -extern struct clk_ops tegra_pll_ref_ops; -extern struct clk_ops tegra30_pll_ops; -extern struct clk_ops tegra30_pll_div_ops; -extern struct clk_ops tegra_plld_ops; -extern struct clk_ops tegra30_plle_ops; -extern struct clk_ops tegra_cml_clk_ops; -extern struct clk_ops tegra_pciex_clk_ops; -extern struct clk_ops tegra_sync_source_ops; -extern struct clk_ops tegra30_audio_sync_clk_ops; -extern struct clk_ops tegra30_clk_double_ops; -extern struct clk_ops tegra_clk_out_ops; -extern struct clk_ops tegra30_super_ops; -extern struct clk_ops tegra30_blink_clk_ops; -extern struct clk_ops tegra30_twd_ops; -extern struct clk_ops tegra30_bus_ops; -extern struct clk_ops tegra30_periph_clk_ops; -extern struct clk_ops tegra30_dsib_clk_ops; -extern struct clk_ops tegra_nand_clk_ops; -extern struct clk_ops tegra_vi_clk_ops; -extern struct clk_ops tegra_dtv_clk_ops; -extern struct clk_ops tegra_clk_shared_bus_ops; - -int tegra30_plld_clk_cfg_ex(struct clk_hw *hw, - enum tegra_clk_ex_param p, u32 setting); -void tegra30_periph_clk_reset(struct clk_hw *hw, bool assert); -int tegra30_vi_clk_cfg_ex(struct clk_hw *hw, - enum tegra_clk_ex_param p, u32 setting); -int tegra30_nand_clk_cfg_ex(struct clk_hw *hw, - enum tegra_clk_ex_param p, u32 setting); -int tegra30_dtv_clk_cfg_ex(struct clk_hw *hw, - enum tegra_clk_ex_param p, u32 setting); -#endif diff --git a/arch/arm/mach-tegra/tegra30_clocks_data.c b/arch/arm/mach-tegra/tegra30_clocks_data.c deleted file mode 100644 index 9bfaa490cff6..000000000000 --- a/arch/arm/mach-tegra/tegra30_clocks_data.c +++ /dev/null @@ -1,1425 +0,0 @@ -/* - * arch/arm/mach-tegra/tegra30_clocks.c - * - * Copyright (c) 2010-2012 NVIDIA CORPORATION. All rights reserved. - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; version 2 of the License. - * - * This program is distributed in the hope that it will be useful, but WITHOUT - * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or - * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for - * more details. - * - * You should have received a copy of the GNU General Public License along - * with this program; if not, write to the Free Software Foundation, Inc., - * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. - * - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#include "clock.h" -#include "fuse.h" -#include "tegra30_clocks.h" - -#define DEFINE_CLK_TEGRA(_name, _rate, _ops, _flags, \ - _parent_names, _parents, _parent) \ - static struct clk tegra_##_name = { \ - .hw = &tegra_##_name##_hw.hw, \ - .name = #_name, \ - .rate = _rate, \ - .ops = _ops, \ - .flags = _flags, \ - .parent_names = _parent_names, \ - .parents = _parents, \ - .num_parents = ARRAY_SIZE(_parent_names), \ - .parent = _parent, \ - }; - -static struct clk tegra_clk_32k; -static struct clk_tegra tegra_clk_32k_hw = { - .hw = { - .clk = &tegra_clk_32k, - }, - .fixed_rate = 32768, -}; -static struct clk tegra_clk_32k = { - .name = "clk_32k", - .hw = &tegra_clk_32k_hw.hw, - .ops = &tegra30_clk_32k_ops, - .flags = CLK_IS_ROOT, -}; - -static struct clk tegra_clk_m; -static struct clk_tegra tegra_clk_m_hw = { - .hw = { - .clk = &tegra_clk_m, - }, - .flags = ENABLE_ON_INIT, - .reg = 0x1fc, - .reg_shift = 28, - .max_rate = 48000000, -}; -static struct clk tegra_clk_m = { - .name = "clk_m", - .hw = &tegra_clk_m_hw.hw, - .ops = &tegra30_clk_m_ops, - .flags = CLK_IS_ROOT | CLK_IGNORE_UNUSED, -}; - -static const char *clk_m_div_parent_names[] = { - "clk_m", -}; - -static struct clk *clk_m_div_parents[] = { - &tegra_clk_m, -}; - -static struct clk tegra_clk_m_div2; -static struct clk_tegra tegra_clk_m_div2_hw = { - .hw = { - .clk = &tegra_clk_m_div2, - }, - .mul = 1, - .div = 2, - .max_rate = 24000000, -}; -DEFINE_CLK_TEGRA(clk_m_div2, 0, &tegra_clk_m_div_ops, 0, - clk_m_div_parent_names, clk_m_div_parents, &tegra_clk_m); - -static struct clk tegra_clk_m_div4; -static struct clk_tegra tegra_clk_m_div4_hw = { - .hw = { - .clk = &tegra_clk_m_div4, - }, - .mul = 1, - .div = 4, - .max_rate = 12000000, -}; -DEFINE_CLK_TEGRA(clk_m_div4, 0, &tegra_clk_m_div_ops, 0, - clk_m_div_parent_names, clk_m_div_parents, &tegra_clk_m); - -static struct clk tegra_pll_ref; -static struct clk_tegra tegra_pll_ref_hw = { - .hw = { - .clk = &tegra_pll_ref, - }, - .flags = ENABLE_ON_INIT, - .max_rate = 26000000, -}; -DEFINE_CLK_TEGRA(pll_ref, 0, &tegra_pll_ref_ops, 0, clk_m_div_parent_names, - clk_m_div_parents, &tegra_clk_m); - -#define DEFINE_PLL(_name, _flags, _reg, _max_rate, _input_min, \ - _input_max, _cf_min, _cf_max, _vco_min, \ - _vco_max, _freq_table, _lock_delay, _ops, \ - _fixed_rate, _clk_cfg_ex, _parent) \ - static struct clk tegra_##_name; \ - static const char *_name##_parent_names[] = { \ - #_parent, \ - }; \ - static struct clk *_name##_parents[] = { \ - &tegra_##_parent, \ - }; \ - static struct clk_tegra tegra_##_name##_hw = { \ - .hw = { \ - .clk = &tegra_##_name, \ - }, \ - .flags = _flags, \ - .reg = _reg, \ - .max_rate = _max_rate, \ - .u.pll = { \ - .input_min = _input_min, \ - .input_max = _input_max, \ - .cf_min = _cf_min, \ - .cf_max = _cf_max, \ - .vco_min = _vco_min, \ - .vco_max = _vco_max, \ - .freq_table = _freq_table, \ - .lock_delay = _lock_delay, \ - .fixed_rate = _fixed_rate, \ - }, \ - .clk_cfg_ex = _clk_cfg_ex, \ - }; \ - DEFINE_CLK_TEGRA(_name, 0, &_ops, CLK_IGNORE_UNUSED, \ - _name##_parent_names, _name##_parents, \ - &tegra_##_parent); - -#define DEFINE_PLL_OUT(_name, _flags, _reg, _reg_shift, \ - _max_rate, _ops, _parent, _clk_flags) \ - static const char *_name##_parent_names[] = { \ - #_parent, \ - }; \ - static struct clk *_name##_parents[] = { \ - &tegra_##_parent, \ - }; \ - static struct clk tegra_##_name; \ - static struct clk_tegra tegra_##_name##_hw = { \ - .hw = { \ - .clk = &tegra_##_name, \ - }, \ - .flags = _flags, \ - .reg = _reg, \ - .max_rate = _max_rate, \ - .reg_shift = _reg_shift, \ - }; \ - DEFINE_CLK_TEGRA(_name, 0, &tegra30_pll_div_ops, \ - _clk_flags, _name##_parent_names, \ - _name##_parents, &tegra_##_parent); - -static struct clk_pll_freq_table tegra_pll_c_freq_table[] = { - { 12000000, 1040000000, 520, 6, 1, 8}, - { 13000000, 1040000000, 480, 6, 1, 8}, - { 16800000, 1040000000, 495, 8, 1, 8}, /* actual: 1039.5 MHz */ - { 19200000, 1040000000, 325, 6, 1, 6}, - { 26000000, 1040000000, 520, 13, 1, 8}, - - { 12000000, 832000000, 416, 6, 1, 8}, - { 13000000, 832000000, 832, 13, 1, 8}, - { 16800000, 832000000, 396, 8, 1, 8}, /* actual: 831.6 MHz */ - { 19200000, 832000000, 260, 6, 1, 8}, - { 26000000, 832000000, 416, 13, 1, 8}, - - { 12000000, 624000000, 624, 12, 1, 8}, - { 13000000, 624000000, 624, 13, 1, 8}, - { 16800000, 600000000, 520, 14, 1, 8}, - { 19200000, 624000000, 520, 16, 1, 8}, - { 26000000, 624000000, 624, 26, 1, 8}, - - { 12000000, 600000000, 600, 12, 1, 8}, - { 13000000, 600000000, 600, 13, 1, 8}, - { 16800000, 600000000, 500, 14, 1, 8}, - { 19200000, 600000000, 375, 12, 1, 6}, - { 26000000, 600000000, 600, 26, 1, 8}, - - { 12000000, 520000000, 520, 12, 1, 8}, - { 13000000, 520000000, 520, 13, 1, 8}, - { 16800000, 520000000, 495, 16, 1, 8}, /* actual: 519.75 MHz */ - { 19200000, 520000000, 325, 12, 1, 6}, - { 26000000, 520000000, 520, 26, 1, 8}, - - { 12000000, 416000000, 416, 12, 1, 8}, - { 13000000, 416000000, 416, 13, 1, 8}, - { 16800000, 416000000, 396, 16, 1, 8}, /* actual: 415.8 MHz */ - { 19200000, 416000000, 260, 12, 1, 6}, - { 26000000, 416000000, 416, 26, 1, 8}, - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_c, PLL_HAS_CPCON, 0x80, 1400000000, 2000000, 31000000, 1000000, - 6000000, 20000000, 1400000000, tegra_pll_c_freq_table, 300, - tegra30_pll_ops, 0, NULL, pll_ref); - -DEFINE_PLL_OUT(pll_c_out1, DIV_U71, 0x84, 0, 700000000, - tegra30_pll_div_ops, pll_c, CLK_IGNORE_UNUSED); - -static struct clk_pll_freq_table tegra_pll_m_freq_table[] = { - { 12000000, 666000000, 666, 12, 1, 8}, - { 13000000, 666000000, 666, 13, 1, 8}, - { 16800000, 666000000, 555, 14, 1, 8}, - { 19200000, 666000000, 555, 16, 1, 8}, - { 26000000, 666000000, 666, 26, 1, 8}, - { 12000000, 600000000, 600, 12, 1, 8}, - { 13000000, 600000000, 600, 13, 1, 8}, - { 16800000, 600000000, 500, 14, 1, 8}, - { 19200000, 600000000, 375, 12, 1, 6}, - { 26000000, 600000000, 600, 26, 1, 8}, - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_m, PLL_HAS_CPCON | PLLM, 0x90, 800000000, 2000000, 31000000, - 1000000, 6000000, 20000000, 1200000000, tegra_pll_m_freq_table, - 300, tegra30_pll_ops, 0, NULL, pll_ref); - -DEFINE_PLL_OUT(pll_m_out1, DIV_U71, 0x94, 0, 600000000, - tegra30_pll_div_ops, pll_m, CLK_IGNORE_UNUSED); - -static struct clk_pll_freq_table tegra_pll_p_freq_table[] = { - { 12000000, 216000000, 432, 12, 2, 8}, - { 13000000, 216000000, 432, 13, 2, 8}, - { 16800000, 216000000, 360, 14, 2, 8}, - { 19200000, 216000000, 360, 16, 2, 8}, - { 26000000, 216000000, 432, 26, 2, 8}, - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_p, ENABLE_ON_INIT | PLL_FIXED | PLL_HAS_CPCON, 0xa0, 432000000, - 2000000, 31000000, 1000000, 6000000, 20000000, 1400000000, - tegra_pll_p_freq_table, 300, tegra30_pll_ops, 408000000, NULL, - pll_ref); - -DEFINE_PLL_OUT(pll_p_out1, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, - 0, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED); -DEFINE_PLL_OUT(pll_p_out2, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa4, - 16, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED); -DEFINE_PLL_OUT(pll_p_out3, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, - 0, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED); -DEFINE_PLL_OUT(pll_p_out4, ENABLE_ON_INIT | DIV_U71 | DIV_U71_FIXED, 0xa8, - 16, 432000000, tegra30_pll_div_ops, pll_p, CLK_IGNORE_UNUSED); - -static struct clk_pll_freq_table tegra_pll_a_freq_table[] = { - { 9600000, 564480000, 294, 5, 1, 4}, - { 9600000, 552960000, 288, 5, 1, 4}, - { 9600000, 24000000, 5, 2, 1, 1}, - - { 28800000, 56448000, 49, 25, 1, 1}, - { 28800000, 73728000, 64, 25, 1, 1}, - { 28800000, 24000000, 5, 6, 1, 1}, - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_a, PLL_HAS_CPCON, 0xb0, 700000000, 2000000, 31000000, 1000000, - 6000000, 20000000, 1400000000, tegra_pll_a_freq_table, - 300, tegra30_pll_ops, 0, NULL, pll_p_out1); - -DEFINE_PLL_OUT(pll_a_out0, DIV_U71, 0xb4, 0, 100000000, tegra30_pll_div_ops, - pll_a, CLK_IGNORE_UNUSED); - -static struct clk_pll_freq_table tegra_pll_d_freq_table[] = { - { 12000000, 216000000, 216, 12, 1, 4}, - { 13000000, 216000000, 216, 13, 1, 4}, - { 16800000, 216000000, 180, 14, 1, 4}, - { 19200000, 216000000, 180, 16, 1, 4}, - { 26000000, 216000000, 216, 26, 1, 4}, - - { 12000000, 594000000, 594, 12, 1, 8}, - { 13000000, 594000000, 594, 13, 1, 8}, - { 16800000, 594000000, 495, 14, 1, 8}, - { 19200000, 594000000, 495, 16, 1, 8}, - { 26000000, 594000000, 594, 26, 1, 8}, - - { 12000000, 1000000000, 1000, 12, 1, 12}, - { 13000000, 1000000000, 1000, 13, 1, 12}, - { 19200000, 1000000000, 625, 12, 1, 8}, - { 26000000, 1000000000, 1000, 26, 1, 12}, - - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_d, PLL_HAS_CPCON | PLLD, 0xd0, 1000000000, 2000000, 40000000, - 1000000, 6000000, 40000000, 1000000000, tegra_pll_d_freq_table, - 1000, tegra30_pll_ops, 0, tegra30_plld_clk_cfg_ex, pll_ref); - -DEFINE_PLL_OUT(pll_d_out0, DIV_2 | PLLD, 0, 0, 500000000, tegra30_pll_div_ops, - pll_d, CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED); - -DEFINE_PLL(pll_d2, PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLD, 0x4b8, 1000000000, - 2000000, 40000000, 1000000, 6000000, 40000000, 1000000000, - tegra_pll_d_freq_table, 1000, tegra30_pll_ops, 0, NULL, - pll_ref); - -DEFINE_PLL_OUT(pll_d2_out0, DIV_2 | PLLD, 0, 0, 500000000, tegra30_pll_div_ops, - pll_d2, CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED); - -static struct clk_pll_freq_table tegra_pll_u_freq_table[] = { - { 12000000, 480000000, 960, 12, 2, 12}, - { 13000000, 480000000, 960, 13, 2, 12}, - { 16800000, 480000000, 400, 7, 2, 5}, - { 19200000, 480000000, 200, 4, 2, 3}, - { 26000000, 480000000, 960, 26, 2, 12}, - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_u, PLL_HAS_CPCON | PLLU, 0xc0, 480000000, 2000000, 40000000, - 1000000, 6000000, 48000000, 960000000, tegra_pll_u_freq_table, - 1000, tegra30_pll_ops, 0, NULL, pll_ref); - -static struct clk_pll_freq_table tegra_pll_x_freq_table[] = { - /* 1.7 GHz */ - { 12000000, 1700000000, 850, 6, 1, 8}, - { 13000000, 1700000000, 915, 7, 1, 8}, /* actual: 1699.2 MHz */ - { 16800000, 1700000000, 708, 7, 1, 8}, /* actual: 1699.2 MHz */ - { 19200000, 1700000000, 885, 10, 1, 8}, /* actual: 1699.2 MHz */ - { 26000000, 1700000000, 850, 13, 1, 8}, - - /* 1.6 GHz */ - { 12000000, 1600000000, 800, 6, 1, 8}, - { 13000000, 1600000000, 738, 6, 1, 8}, /* actual: 1599.0 MHz */ - { 16800000, 1600000000, 857, 9, 1, 8}, /* actual: 1599.7 MHz */ - { 19200000, 1600000000, 500, 6, 1, 8}, - { 26000000, 1600000000, 800, 13, 1, 8}, - - /* 1.5 GHz */ - { 12000000, 1500000000, 750, 6, 1, 8}, - { 13000000, 1500000000, 923, 8, 1, 8}, /* actual: 1499.8 MHz */ - { 16800000, 1500000000, 625, 7, 1, 8}, - { 19200000, 1500000000, 625, 8, 1, 8}, - { 26000000, 1500000000, 750, 13, 1, 8}, - - /* 1.4 GHz */ - { 12000000, 1400000000, 700, 6, 1, 8}, - { 13000000, 1400000000, 969, 9, 1, 8}, /* actual: 1399.7 MHz */ - { 16800000, 1400000000, 1000, 12, 1, 8}, - { 19200000, 1400000000, 875, 12, 1, 8}, - { 26000000, 1400000000, 700, 13, 1, 8}, - - /* 1.3 GHz */ - { 12000000, 1300000000, 975, 9, 1, 8}, - { 13000000, 1300000000, 1000, 10, 1, 8}, - { 16800000, 1300000000, 928, 12, 1, 8}, /* actual: 1299.2 MHz */ - { 19200000, 1300000000, 812, 12, 1, 8}, /* actual: 1299.2 MHz */ - { 26000000, 1300000000, 650, 13, 1, 8}, - - /* 1.2 GHz */ - { 12000000, 1200000000, 1000, 10, 1, 8}, - { 13000000, 1200000000, 923, 10, 1, 8}, /* actual: 1199.9 MHz */ - { 16800000, 1200000000, 1000, 14, 1, 8}, - { 19200000, 1200000000, 1000, 16, 1, 8}, - { 26000000, 1200000000, 600, 13, 1, 8}, - - /* 1.1 GHz */ - { 12000000, 1100000000, 825, 9, 1, 8}, - { 13000000, 1100000000, 846, 10, 1, 8}, /* actual: 1099.8 MHz */ - { 16800000, 1100000000, 982, 15, 1, 8}, /* actual: 1099.8 MHz */ - { 19200000, 1100000000, 859, 15, 1, 8}, /* actual: 1099.5 MHz */ - { 26000000, 1100000000, 550, 13, 1, 8}, - - /* 1 GHz */ - { 12000000, 1000000000, 1000, 12, 1, 8}, - { 13000000, 1000000000, 1000, 13, 1, 8}, - { 16800000, 1000000000, 833, 14, 1, 8}, /* actual: 999.6 MHz */ - { 19200000, 1000000000, 625, 12, 1, 8}, - { 26000000, 1000000000, 1000, 26, 1, 8}, - - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_x, PLL_HAS_CPCON | PLL_ALT_MISC_REG | PLLX, 0xe0, 1700000000, - 2000000, 31000000, 1000000, 6000000, 20000000, 1700000000, - tegra_pll_x_freq_table, 300, tegra30_pll_ops, 0, NULL, pll_ref); - -DEFINE_PLL_OUT(pll_x_out0, DIV_2 | PLLX, 0, 0, 850000000, tegra30_pll_div_ops, - pll_x, CLK_SET_RATE_PARENT | CLK_IGNORE_UNUSED); - -static struct clk_pll_freq_table tegra_pll_e_freq_table[] = { - /* PLLE special case: use cpcon field to store cml divider value */ - { 12000000, 100000000, 150, 1, 18, 11}, - { 216000000, 100000000, 200, 18, 24, 13}, - { 0, 0, 0, 0, 0, 0 }, -}; - -DEFINE_PLL(pll_e, PLL_ALT_MISC_REG, 0xe8, 100000000, 2000000, 216000000, - 12000000, 12000000, 1200000000, 2400000000U, - tegra_pll_e_freq_table, 300, tegra30_plle_ops, 100000000, NULL, - pll_ref); - -static const char *mux_plle[] = { - "pll_e", -}; - -static struct clk *mux_plle_p[] = { - &tegra_pll_e, -}; - -static struct clk tegra_cml0; -static struct clk_tegra tegra_cml0_hw = { - .hw = { - .clk = &tegra_cml0, - }, - .reg = 0x48c, - .fixed_rate = 100000000, - .u.periph = { - .clk_num = 0, - }, -}; -DEFINE_CLK_TEGRA(cml0, 0, &tegra_cml_clk_ops, 0, mux_plle, - mux_plle_p, &tegra_pll_e); - -static struct clk tegra_cml1; -static struct clk_tegra tegra_cml1_hw = { - .hw = { - .clk = &tegra_cml1, - }, - .reg = 0x48c, - .fixed_rate = 100000000, - .u.periph = { - .clk_num = 1, - }, -}; -DEFINE_CLK_TEGRA(cml1, 0, &tegra_cml_clk_ops, 0, mux_plle, - mux_plle_p, &tegra_pll_e); - -static struct clk tegra_pciex; -static struct clk_tegra tegra_pciex_hw = { - .hw = { - .clk = &tegra_pciex, - }, - .reg = 0x48c, - .fixed_rate = 100000000, - .reset = tegra30_periph_clk_reset, - .u.periph = { - .clk_num = 74, - }, -}; -DEFINE_CLK_TEGRA(pciex, 0, &tegra_pciex_clk_ops, 0, mux_plle, - mux_plle_p, &tegra_pll_e); - -#define SYNC_SOURCE(_name) \ - static struct clk tegra_##_name##_sync; \ - static struct clk_tegra tegra_##_name##_sync_hw = { \ - .hw = { \ - .clk = &tegra_##_name##_sync, \ - }, \ - .max_rate = 24000000, \ - .fixed_rate = 24000000, \ - }; \ - static struct clk tegra_##_name##_sync = { \ - .name = #_name "_sync", \ - .hw = &tegra_##_name##_sync_hw.hw, \ - .ops = &tegra_sync_source_ops, \ - .flags = CLK_IS_ROOT, \ - }; - -SYNC_SOURCE(spdif_in); -SYNC_SOURCE(i2s0); -SYNC_SOURCE(i2s1); -SYNC_SOURCE(i2s2); -SYNC_SOURCE(i2s3); -SYNC_SOURCE(i2s4); -SYNC_SOURCE(vimclk); - -static struct clk *tegra_sync_source_list[] = { - &tegra_spdif_in_sync, - &tegra_i2s0_sync, - &tegra_i2s1_sync, - &tegra_i2s2_sync, - &tegra_i2s3_sync, - &tegra_i2s4_sync, - &tegra_vimclk_sync, -}; - -static const char *mux_audio_sync_clk[] = { - "spdif_in_sync", - "i2s0_sync", - "i2s1_sync", - "i2s2_sync", - "i2s3_sync", - "i2s4_sync", - "vimclk_sync", -}; - -#define AUDIO_SYNC_CLK(_name, _index) \ - static struct clk tegra_##_name; \ - static struct clk_tegra tegra_##_name##_hw = { \ - .hw = { \ - .clk = &tegra_##_name, \ - }, \ - .max_rate = 24000000, \ - .reg = 0x4A0 + (_index) * 4, \ - }; \ - static struct clk tegra_##_name = { \ - .name = #_name, \ - .ops = &tegra30_audio_sync_clk_ops, \ - .hw = &tegra_##_name##_hw.hw, \ - .parent_names = mux_audio_sync_clk, \ - .parents = tegra_sync_source_list, \ - .num_parents = ARRAY_SIZE(mux_audio_sync_clk), \ - }; - -AUDIO_SYNC_CLK(audio0, 0); -AUDIO_SYNC_CLK(audio1, 1); -AUDIO_SYNC_CLK(audio2, 2); -AUDIO_SYNC_CLK(audio3, 3); -AUDIO_SYNC_CLK(audio4, 4); -AUDIO_SYNC_CLK(audio5, 5); - -static struct clk *tegra_clk_audio_list[] = { - &tegra_audio0, - &tegra_audio1, - &tegra_audio2, - &tegra_audio3, - &tegra_audio4, - &tegra_audio5, /* SPDIF */ -}; - -#define AUDIO_SYNC_2X_CLK(_name, _index) \ - static const char *_name##_parent_names[] = { \ - "tegra_" #_name, \ - }; \ - static struct clk *_name##_parents[] = { \ - &tegra_##_name, \ - }; \ - static struct clk tegra_##_name##_2x; \ - static struct clk_tegra tegra_##_name##_2x_hw = { \ - .hw = { \ - .clk = &tegra_##_name##_2x, \ - }, \ - .flags = PERIPH_NO_RESET, \ - .max_rate = 48000000, \ - .reg = 0x49C, \ - .reg_shift = 24 + (_index), \ - .u.periph = { \ - .clk_num = 113 + (_index), \ - }, \ - }; \ - static struct clk tegra_##_name##_2x = { \ - .name = #_name "_2x", \ - .ops = &tegra30_clk_double_ops, \ - .hw = &tegra_##_name##_2x_hw.hw, \ - .parent_names = _name##_parent_names, \ - .parents = _name##_parents, \ - .parent = &tegra_##_name, \ - .num_parents = 1, \ - }; - -AUDIO_SYNC_2X_CLK(audio0, 0); -AUDIO_SYNC_2X_CLK(audio1, 1); -AUDIO_SYNC_2X_CLK(audio2, 2); -AUDIO_SYNC_2X_CLK(audio3, 3); -AUDIO_SYNC_2X_CLK(audio4, 4); -AUDIO_SYNC_2X_CLK(audio5, 5); /* SPDIF */ - -static struct clk *tegra_clk_audio_2x_list[] = { - &tegra_audio0_2x, - &tegra_audio1_2x, - &tegra_audio2_2x, - &tegra_audio3_2x, - &tegra_audio4_2x, - &tegra_audio5_2x, /* SPDIF */ -}; - -#define MUX_I2S_SPDIF(_id) \ -static const char *mux_pllaout0_##_id##_2x_pllp_clkm[] = { \ - "pll_a_out0", \ - #_id "_2x", \ - "pll_p", \ - "clk_m", \ -}; \ -static struct clk *mux_pllaout0_##_id##_2x_pllp_clkm_p[] = { \ - &tegra_pll_a_out0, \ - &tegra_##_id##_2x, \ - &tegra_pll_p, \ - &tegra_clk_m, \ -}; - -MUX_I2S_SPDIF(audio0); -MUX_I2S_SPDIF(audio1); -MUX_I2S_SPDIF(audio2); -MUX_I2S_SPDIF(audio3); -MUX_I2S_SPDIF(audio4); -MUX_I2S_SPDIF(audio5); /* SPDIF */ - -static struct clk tegra_extern1; -static struct clk tegra_extern2; -static struct clk tegra_extern3; - -/* External clock outputs (through PMC) */ -#define MUX_EXTERN_OUT(_id) \ -static const char *mux_clkm_clkm2_clkm4_extern##_id[] = { \ - "clk_m", \ - "clk_m_div2", \ - "clk_m_div4", \ - "extern" #_id, \ -}; \ -static struct clk *mux_clkm_clkm2_clkm4_extern##_id##_p[] = { \ - &tegra_clk_m, \ - &tegra_clk_m_div2, \ - &tegra_clk_m_div4, \ - &tegra_extern##_id, \ -}; - -MUX_EXTERN_OUT(1); -MUX_EXTERN_OUT(2); -MUX_EXTERN_OUT(3); - -#define CLK_OUT_CLK(_name, _index) \ - static struct clk tegra_##_name; \ - static struct clk_tegra tegra_##_name##_hw = { \ - .hw = { \ - .clk = &tegra_##_name, \ - }, \ - .lookup = { \ - .dev_id = #_name, \ - .con_id = "extern" #_index, \ - }, \ - .flags = MUX_CLK_OUT, \ - .fixed_rate = 216000000, \ - .reg = 0x1a8, \ - .u.periph = { \ - .clk_num = (_index - 1) * 8 + 2, \ - }, \ - }; \ - static struct clk tegra_##_name = { \ - .name = #_name, \ - .ops = &tegra_clk_out_ops, \ - .hw = &tegra_##_name##_hw.hw, \ - .parent_names = mux_clkm_clkm2_clkm4_extern##_index, \ - .parents = mux_clkm_clkm2_clkm4_extern##_index##_p, \ - .num_parents = ARRAY_SIZE(mux_clkm_clkm2_clkm4_extern##_index),\ - }; - -CLK_OUT_CLK(clk_out_1, 1); -CLK_OUT_CLK(clk_out_2, 2); -CLK_OUT_CLK(clk_out_3, 3); - -static struct clk *tegra_clk_out_list[] = { - &tegra_clk_out_1, - &tegra_clk_out_2, - &tegra_clk_out_3, -}; - -static const char *mux_sclk[] = { - "clk_m", - "pll_c_out1", - "pll_p_out4", - "pll_p_out3", - "pll_p_out2", - "dummy", - "clk_32k", - "pll_m_out1", -}; - -static struct clk *mux_sclk_p[] = { - &tegra_clk_m, - &tegra_pll_c_out1, - &tegra_pll_p_out4, - &tegra_pll_p_out3, - &tegra_pll_p_out2, - NULL, - &tegra_clk_32k, - &tegra_pll_m_out1, -}; - -static struct clk tegra_clk_sclk; -static struct clk_tegra tegra_clk_sclk_hw = { - .hw = { - .clk = &tegra_clk_sclk, - }, - .reg = 0x28, - .max_rate = 334000000, - .min_rate = 40000000, -}; - -static struct clk tegra_clk_sclk = { - .name = "sclk", - .ops = &tegra30_super_ops, - .hw = &tegra_clk_sclk_hw.hw, - .parent_names = mux_sclk, - .parents = mux_sclk_p, - .num_parents = ARRAY_SIZE(mux_sclk), -}; - -static const char *tegra_hclk_parent_names[] = { - "tegra_sclk", -}; - -static struct clk *tegra_hclk_parents[] = { - &tegra_clk_sclk, -}; - -static struct clk tegra_hclk; -static struct clk_tegra tegra_hclk_hw = { - .hw = { - .clk = &tegra_hclk, - }, - .flags = DIV_BUS, - .reg = 0x30, - .reg_shift = 4, - .max_rate = 378000000, - .min_rate = 12000000, -}; -DEFINE_CLK_TEGRA(hclk, 0, &tegra30_bus_ops, 0, tegra_hclk_parent_names, - tegra_hclk_parents, &tegra_clk_sclk); - -static const char *tegra_pclk_parent_names[] = { - "tegra_hclk", -}; - -static struct clk *tegra_pclk_parents[] = { - &tegra_hclk, -}; - -static struct clk tegra_pclk; -static struct clk_tegra tegra_pclk_hw = { - .hw = { - .clk = &tegra_pclk, - }, - .flags = DIV_BUS, - .reg = 0x30, - .reg_shift = 0, - .max_rate = 167000000, - .min_rate = 12000000, -}; -DEFINE_CLK_TEGRA(pclk, 0, &tegra30_bus_ops, 0, tegra_pclk_parent_names, - tegra_pclk_parents, &tegra_hclk); - -static const char *mux_blink[] = { - "clk_32k", -}; - -static struct clk *mux_blink_p[] = { - &tegra_clk_32k, -}; - -static struct clk tegra_clk_blink; -static struct clk_tegra tegra_clk_blink_hw = { - .hw = { - .clk = &tegra_clk_blink, - }, - .reg = 0x40, - .max_rate = 32768, -}; -static struct clk tegra_clk_blink = { - .name = "blink", - .ops = &tegra30_blink_clk_ops, - .hw = &tegra_clk_blink_hw.hw, - .parent = &tegra_clk_32k, - .parent_names = mux_blink, - .parents = mux_blink_p, - .num_parents = ARRAY_SIZE(mux_blink), -}; - -static const char *mux_pllm_pllc_pllp_plla[] = { - "pll_m", - "pll_c", - "pll_p", - "pll_a_out0", -}; - -static const char *mux_pllp_pllc_pllm_clkm[] = { - "pll_p", - "pll_c", - "pll_m", - "clk_m", -}; - -static const char *mux_pllp_clkm[] = { - "pll_p", - "dummy", - "dummy", - "clk_m", -}; - -static const char *mux_pllp_plld_pllc_clkm[] = { - "pll_p", - "pll_d_out0", - "pll_c", - "clk_m", -}; - -static const char *mux_pllp_pllm_plld_plla_pllc_plld2_clkm[] = { - "pll_p", - "pll_m", - "pll_d_out0", - "pll_a_out0", - "pll_c", - "pll_d2_out0", - "clk_m", -}; - -static const char *mux_plla_pllc_pllp_clkm[] = { - "pll_a_out0", - "dummy", - "pll_p", - "clk_m" -}; - -static const char *mux_pllp_pllc_clk32_clkm[] = { - "pll_p", - "pll_c", - "clk_32k", - "clk_m", -}; - -static const char *mux_pllp_pllc_clkm_clk32[] = { - "pll_p", - "pll_c", - "clk_m", - "clk_32k", -}; - -static const char *mux_pllp_pllc_pllm[] = { - "pll_p", - "pll_c", - "pll_m", -}; - -static const char *mux_clk_m[] = { - "clk_m", -}; - -static const char *mux_pllp_out3[] = { - "pll_p_out3", -}; - -static const char *mux_plld_out0[] = { - "pll_d_out0", -}; - -static const char *mux_plld_out0_plld2_out0[] = { - "pll_d_out0", - "pll_d2_out0", -}; - -static const char *mux_clk_32k[] = { - "clk_32k", -}; - -static const char *mux_plla_clk32_pllp_clkm_plle[] = { - "pll_a_out0", - "clk_32k", - "pll_p", - "clk_m", - "pll_e", -}; - -static const char *mux_cclk_g[] = { - "clk_m", - "pll_c", - "clk_32k", - "pll_m", - "pll_p", - "pll_p_out4", - "pll_p_out3", - "dummy", - "pll_x", -}; - -static struct clk *mux_pllm_pllc_pllp_plla_p[] = { - &tegra_pll_m, - &tegra_pll_c, - &tegra_pll_p, - &tegra_pll_a_out0, -}; - -static struct clk *mux_pllp_pllc_pllm_clkm_p[] = { - &tegra_pll_p, - &tegra_pll_c, - &tegra_pll_m, - &tegra_clk_m, -}; - -static struct clk *mux_pllp_clkm_p[] = { - &tegra_pll_p, - NULL, - NULL, - &tegra_clk_m, -}; - -static struct clk *mux_pllp_plld_pllc_clkm_p[] = { - &tegra_pll_p, - &tegra_pll_d_out0, - &tegra_pll_c, - &tegra_clk_m, -}; - -static struct clk *mux_pllp_pllm_plld_plla_pllc_plld2_clkm_p[] = { - &tegra_pll_p, - &tegra_pll_m, - &tegra_pll_d_out0, - &tegra_pll_a_out0, - &tegra_pll_c, - &tegra_pll_d2_out0, - &tegra_clk_m, -}; - -static struct clk *mux_plla_pllc_pllp_clkm_p[] = { - &tegra_pll_a_out0, - NULL, - &tegra_pll_p, - &tegra_clk_m, -}; - -static struct clk *mux_pllp_pllc_clk32_clkm_p[] = { - &tegra_pll_p, - &tegra_pll_c, - &tegra_clk_32k, - &tegra_clk_m, -}; - -static struct clk *mux_pllp_pllc_clkm_clk32_p[] = { - &tegra_pll_p, - &tegra_pll_c, - &tegra_clk_m, - &tegra_clk_32k, -}; - -static struct clk *mux_pllp_pllc_pllm_p[] = { - &tegra_pll_p, - &tegra_pll_c, - &tegra_pll_m, -}; - -static struct clk *mux_clk_m_p[] = { - &tegra_clk_m, -}; - -static struct clk *mux_pllp_out3_p[] = { - &tegra_pll_p_out3, -}; - -static struct clk *mux_plld_out0_p[] = { - &tegra_pll_d_out0, -}; - -static struct clk *mux_plld_out0_plld2_out0_p[] = { - &tegra_pll_d_out0, - &tegra_pll_d2_out0, -}; - -static struct clk *mux_clk_32k_p[] = { - &tegra_clk_32k, -}; - -static struct clk *mux_plla_clk32_pllp_clkm_plle_p[] = { - &tegra_pll_a_out0, - &tegra_clk_32k, - &tegra_pll_p, - &tegra_clk_m, - &tegra_pll_e, -}; - -static struct clk *mux_cclk_g_p[] = { - &tegra_clk_m, - &tegra_pll_c, - &tegra_clk_32k, - &tegra_pll_m, - &tegra_pll_p, - &tegra_pll_p_out4, - &tegra_pll_p_out3, - NULL, - &tegra_pll_x, -}; - -static struct clk tegra_clk_cclk_g; -static struct clk_tegra tegra_clk_cclk_g_hw = { - .hw = { - .clk = &tegra_clk_cclk_g, - }, - .flags = DIV_U71 | DIV_U71_INT, - .reg = 0x368, - .max_rate = 1700000000, -}; -static struct clk tegra_clk_cclk_g = { - .name = "cclk_g", - .ops = &tegra30_super_ops, - .hw = &tegra_clk_cclk_g_hw.hw, - .parent_names = mux_cclk_g, - .parents = mux_cclk_g_p, - .num_parents = ARRAY_SIZE(mux_cclk_g), -}; - -static const char *mux_twd[] = { - "cclk_g", -}; - -static struct clk *mux_twd_p[] = { - &tegra_clk_cclk_g, -}; - -static struct clk tegra30_clk_twd; -static struct clk_tegra tegra30_clk_twd_hw = { - .hw = { - .clk = &tegra30_clk_twd, - }, - .max_rate = 1400000000, - .mul = 1, - .div = 2, -}; - -static struct clk tegra30_clk_twd = { - .name = "twd", - .ops = &tegra30_twd_ops, - .hw = &tegra30_clk_twd_hw.hw, - .parent = &tegra_clk_cclk_g, - .parent_names = mux_twd, - .parents = mux_twd_p, - .num_parents = ARRAY_SIZE(mux_twd), -}; - -#define PERIPH_CLK(_name, _dev, _con, _clk_num, _reg, \ - _max, _inputs, _flags) \ - static struct clk tegra_##_name; \ - static struct clk_tegra tegra_##_name##_hw = { \ - .hw = { \ - .clk = &tegra_##_name, \ - }, \ - .lookup = { \ - .dev_id = _dev, \ - .con_id = _con, \ - }, \ - .reg = _reg, \ - .flags = _flags, \ - .max_rate = _max, \ - .u.periph = { \ - .clk_num = _clk_num, \ - }, \ - .reset = &tegra30_periph_clk_reset, \ - }; \ - static struct clk tegra_##_name = { \ - .name = #_name, \ - .ops = &tegra30_periph_clk_ops, \ - .hw = &tegra_##_name##_hw.hw, \ - .parent_names = _inputs, \ - .parents = _inputs##_p, \ - .num_parents = ARRAY_SIZE(_inputs), \ - }; - -PERIPH_CLK(apbdma, "tegra-apbdma", NULL, 34, 0, 26000000, mux_clk_m, 0); -PERIPH_CLK(rtc, "rtc-tegra", NULL, 4, 0, 32768, mux_clk_32k, PERIPH_NO_RESET | PERIPH_ON_APB); -PERIPH_CLK(kbc, "tegra-kbc", NULL, 36, 0, 32768, mux_clk_32k, PERIPH_NO_RESET | PERIPH_ON_APB); -PERIPH_CLK(timer, "timer", NULL, 5, 0, 26000000, mux_clk_m, 0); -PERIPH_CLK(kfuse, "kfuse-tegra", NULL, 40, 0, 26000000, mux_clk_m, 0); -PERIPH_CLK(fuse, "fuse-tegra", "fuse", 39, 0, 26000000, mux_clk_m, PERIPH_ON_APB); -PERIPH_CLK(fuse_burn, "fuse-tegra", "fuse_burn", 39, 0, 26000000, mux_clk_m, PERIPH_ON_APB); -PERIPH_CLK(apbif, "tegra30-ahub", "apbif", 107, 0, 26000000, mux_clk_m, 0); -PERIPH_CLK(i2s0, "tegra30-i2s.0", NULL, 30, 0x1d8, 26000000, mux_pllaout0_audio0_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(i2s1, "tegra30-i2s.1", NULL, 11, 0x100, 26000000, mux_pllaout0_audio1_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(i2s2, "tegra30-i2s.2", NULL, 18, 0x104, 26000000, mux_pllaout0_audio2_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(i2s3, "tegra30-i2s.3", NULL, 101, 0x3bc, 26000000, mux_pllaout0_audio3_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(i2s4, "tegra30-i2s.4", NULL, 102, 0x3c0, 26000000, mux_pllaout0_audio4_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(spdif_out, "tegra30-spdif", "spdif_out", 10, 0x108, 100000000, mux_pllaout0_audio5_2x_pllp_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(spdif_in, "tegra30-spdif", "spdif_in", 10, 0x10c, 100000000, mux_pllp_pllc_pllm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(pwm, "tegra-pwm", NULL, 17, 0x110, 432000000, mux_pllp_pllc_clk32_clkm, MUX | MUX_PWM | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(d_audio, "tegra30-ahub", "d_audio", 106, 0x3d0, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71); -PERIPH_CLK(dam0, "tegra30-dam.0", NULL, 108, 0x3d8, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71); -PERIPH_CLK(dam1, "tegra30-dam.1", NULL, 109, 0x3dc, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71); -PERIPH_CLK(dam2, "tegra30-dam.2", NULL, 110, 0x3e0, 48000000, mux_plla_pllc_pllp_clkm, MUX | DIV_U71); -PERIPH_CLK(hda, "tegra30-hda", "hda", 125, 0x428, 108000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(hda2codec_2x, "tegra30-hda", "hda2codec", 111, 0x3e4, 48000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(hda2hdmi, "tegra30-hda", "hda2hdmi", 128, 0, 48000000, mux_clk_m, 0); -PERIPH_CLK(sbc1, "spi_tegra.0", NULL, 41, 0x134, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(sbc2, "spi_tegra.1", NULL, 44, 0x118, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(sbc3, "spi_tegra.2", NULL, 46, 0x11c, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(sbc4, "spi_tegra.3", NULL, 68, 0x1b4, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(sbc5, "spi_tegra.4", NULL, 104, 0x3c8, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(sbc6, "spi_tegra.5", NULL, 105, 0x3cc, 160000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(sata_oob, "tegra_sata_oob", NULL, 123, 0x420, 216000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(sata, "tegra_sata", NULL, 124, 0x424, 216000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(sata_cold, "tegra_sata_cold", NULL, 129, 0, 48000000, mux_clk_m, 0); -PERIPH_CLK(ndflash, "tegra_nand", NULL, 13, 0x160, 240000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(ndspeed, "tegra_nand_speed", NULL, 80, 0x3f8, 240000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(vfir, "vfir", NULL, 7, 0x168, 72000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(sdmmc1, "sdhci-tegra.0", NULL, 14, 0x150, 208000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ -PERIPH_CLK(sdmmc2, "sdhci-tegra.1", NULL, 9, 0x154, 104000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ -PERIPH_CLK(sdmmc3, "sdhci-tegra.2", NULL, 69, 0x1bc, 208000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ -PERIPH_CLK(sdmmc4, "sdhci-tegra.3", NULL, 15, 0x164, 104000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* scales with voltage */ -PERIPH_CLK(vcp, "tegra-avp", "vcp", 29, 0, 250000000, mux_clk_m, 0); -PERIPH_CLK(bsea, "tegra-avp", "bsea", 62, 0, 250000000, mux_clk_m, 0); -PERIPH_CLK(bsev, "tegra-aes", "bsev", 63, 0, 250000000, mux_clk_m, 0); -PERIPH_CLK(vde, "vde", NULL, 61, 0x1c8, 520000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_INT); -PERIPH_CLK(csite, "csite", NULL, 73, 0x1d4, 144000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* max rate ??? */ -PERIPH_CLK(la, "la", NULL, 76, 0x1f8, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); -PERIPH_CLK(owr, "tegra_w1", NULL, 71, 0x1cc, 26000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(nor, "nor", NULL, 42, 0x1d0, 127000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71); /* requires min voltage */ -PERIPH_CLK(mipi, "mipi", NULL, 50, 0x174, 60000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | PERIPH_ON_APB); /* scales with voltage */ -PERIPH_CLK(i2c1, "tegra-i2c.0", "div-clk", 12, 0x124, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB); -PERIPH_CLK(i2c2, "tegra-i2c.1", "div-clk", 54, 0x198, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB); -PERIPH_CLK(i2c3, "tegra-i2c.2", "div-clk", 67, 0x1b8, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB); -PERIPH_CLK(i2c4, "tegra-i2c.3", "div-clk", 103, 0x3c4, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB); -PERIPH_CLK(i2c5, "tegra-i2c.4", "div-clk", 47, 0x128, 26000000, mux_pllp_clkm, MUX | DIV_U16 | PERIPH_ON_APB); -PERIPH_CLK(uarta, "tegra-uart.0", NULL, 6, 0x178, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB); -PERIPH_CLK(uartb, "tegra-uart.1", NULL, 7, 0x17c, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB); -PERIPH_CLK(uartc, "tegra-uart.2", NULL, 55, 0x1a0, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB); -PERIPH_CLK(uartd, "tegra-uart.3", NULL, 65, 0x1c0, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB); -PERIPH_CLK(uarte, "tegra-uart.4", NULL, 66, 0x1c4, 800000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_UART | PERIPH_ON_APB); -PERIPH_CLK(vi, "tegra_camera", "vi", 20, 0x148, 425000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT); -PERIPH_CLK(3d, "3d", NULL, 24, 0x158, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET); -PERIPH_CLK(3d2, "3d2", NULL, 98, 0x3b0, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE | PERIPH_MANUAL_RESET); -PERIPH_CLK(2d, "2d", NULL, 21, 0x15c, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT | DIV_U71_IDLE); -PERIPH_CLK(vi_sensor, "tegra_camera", "vi_sensor", 20, 0x1a8, 150000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | PERIPH_NO_RESET); -PERIPH_CLK(epp, "epp", NULL, 19, 0x16c, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT); -PERIPH_CLK(mpe, "mpe", NULL, 60, 0x170, 520000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT); -PERIPH_CLK(host1x, "host1x", NULL, 28, 0x180, 260000000, mux_pllm_pllc_pllp_plla, MUX | DIV_U71 | DIV_U71_INT); -PERIPH_CLK(cve, "cve", NULL, 49, 0x140, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ -PERIPH_CLK(tvo, "tvo", NULL, 49, 0x188, 250000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ -PERIPH_CLK(dtv, "dtv", NULL, 79, 0x1dc, 250000000, mux_clk_m, 0); -PERIPH_CLK(hdmi, "hdmi", NULL, 51, 0x18c, 148500000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8 | DIV_U71); -PERIPH_CLK(tvdac, "tvdac", NULL, 53, 0x194, 220000000, mux_pllp_plld_pllc_clkm, MUX | DIV_U71); /* requires min voltage */ -PERIPH_CLK(disp1, "tegradc.0", NULL, 27, 0x138, 600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8); -PERIPH_CLK(disp2, "tegradc.1", NULL, 26, 0x13c, 600000000, mux_pllp_pllm_plld_plla_pllc_plld2_clkm, MUX | MUX8); -PERIPH_CLK(usbd, "fsl-tegra-udc", NULL, 22, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ -PERIPH_CLK(usb2, "tegra-ehci.1", NULL, 58, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ -PERIPH_CLK(usb3, "tegra-ehci.2", NULL, 59, 0, 480000000, mux_clk_m, 0); /* requires min voltage */ -PERIPH_CLK(dsia, "tegradc.0", "dsia", 48, 0, 500000000, mux_plld_out0, 0); -PERIPH_CLK(csi, "tegra_camera", "csi", 52, 0, 102000000, mux_pllp_out3, 0); -PERIPH_CLK(isp, "tegra_camera", "isp", 23, 0, 150000000, mux_clk_m, 0); /* same frequency as VI */ -PERIPH_CLK(csus, "tegra_camera", "csus", 92, 0, 150000000, mux_clk_m, PERIPH_NO_RESET); -PERIPH_CLK(tsensor, "tegra-tsensor", NULL, 100, 0x3b8, 216000000, mux_pllp_pllc_clkm_clk32, MUX | DIV_U71); -PERIPH_CLK(actmon, "actmon", NULL, 119, 0x3e8, 216000000, mux_pllp_pllc_clk32_clkm, MUX | DIV_U71); -PERIPH_CLK(extern1, "extern1", NULL, 120, 0x3ec, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71); -PERIPH_CLK(extern2, "extern2", NULL, 121, 0x3f0, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71); -PERIPH_CLK(extern3, "extern3", NULL, 122, 0x3f4, 216000000, mux_plla_clk32_pllp_clkm_plle, MUX | MUX8 | DIV_U71); -PERIPH_CLK(i2cslow, "i2cslow", NULL, 81, 0x3fc, 26000000, mux_pllp_pllc_clk32_clkm, MUX | DIV_U71 | PERIPH_ON_APB); -PERIPH_CLK(pcie, "tegra-pcie", "pcie", 70, 0, 250000000, mux_clk_m, 0); -PERIPH_CLK(afi, "tegra-pcie", "afi", 72, 0, 250000000, mux_clk_m, 0); -PERIPH_CLK(se, "se", NULL, 127, 0x42c, 520000000, mux_pllp_pllc_pllm_clkm, MUX | DIV_U71 | DIV_U71_INT); - -static struct clk tegra_dsib; -static struct clk_tegra tegra_dsib_hw = { - .hw = { - .clk = &tegra_dsib, - }, - .lookup = { - .dev_id = "tegradc.1", - .con_id = "dsib", - }, - .reg = 0xd0, - .flags = MUX | PLLD, - .max_rate = 500000000, - .u.periph = { - .clk_num = 82, - }, - .reset = &tegra30_periph_clk_reset, -}; -static struct clk tegra_dsib = { - .name = "dsib", - .ops = &tegra30_dsib_clk_ops, - .hw = &tegra_dsib_hw.hw, - .parent_names = mux_plld_out0_plld2_out0, - .parents = mux_plld_out0_plld2_out0_p, - .num_parents = ARRAY_SIZE(mux_plld_out0_plld2_out0), -}; - -static struct clk *tegra_list_clks[] = { - &tegra_apbdma, - &tegra_rtc, - &tegra_kbc, - &tegra_timer, - &tegra_kfuse, - &tegra_fuse, - &tegra_fuse_burn, - &tegra_apbif, - &tegra_i2s0, - &tegra_i2s1, - &tegra_i2s2, - &tegra_i2s3, - &tegra_i2s4, - &tegra_spdif_out, - &tegra_spdif_in, - &tegra_pwm, - &tegra_d_audio, - &tegra_dam0, - &tegra_dam1, - &tegra_dam2, - &tegra_hda, - &tegra_hda2codec_2x, - &tegra_hda2hdmi, - &tegra_sbc1, - &tegra_sbc2, - &tegra_sbc3, - &tegra_sbc4, - &tegra_sbc5, - &tegra_sbc6, - &tegra_sata_oob, - &tegra_sata, - &tegra_sata_cold, - &tegra_ndflash, - &tegra_ndspeed, - &tegra_vfir, - &tegra_sdmmc1, - &tegra_sdmmc2, - &tegra_sdmmc3, - &tegra_sdmmc4, - &tegra_vcp, - &tegra_bsea, - &tegra_bsev, - &tegra_vde, - &tegra_csite, - &tegra_la, - &tegra_owr, - &tegra_nor, - &tegra_mipi, - &tegra_i2c1, - &tegra_i2c2, - &tegra_i2c3, - &tegra_i2c4, - &tegra_i2c5, - &tegra_uarta, - &tegra_uartb, - &tegra_uartc, - &tegra_uartd, - &tegra_uarte, - &tegra_vi, - &tegra_3d, - &tegra_3d2, - &tegra_2d, - &tegra_vi_sensor, - &tegra_epp, - &tegra_mpe, - &tegra_host1x, - &tegra_cve, - &tegra_tvo, - &tegra_dtv, - &tegra_hdmi, - &tegra_tvdac, - &tegra_disp1, - &tegra_disp2, - &tegra_usbd, - &tegra_usb2, - &tegra_usb3, - &tegra_dsia, - &tegra_dsib, - &tegra_csi, - &tegra_isp, - &tegra_csus, - &tegra_tsensor, - &tegra_actmon, - &tegra_extern1, - &tegra_extern2, - &tegra_extern3, - &tegra_i2cslow, - &tegra_pcie, - &tegra_afi, - &tegra_se, -}; - -#define CLK_DUPLICATE(_name, _dev, _con) \ - { \ - .name = _name, \ - .lookup = { \ - .dev_id = _dev, \ - .con_id = _con, \ - }, \ - } - -/* Some clocks may be used by different drivers depending on the board - * configuration. List those here to register them twice in the clock lookup - * table under two names. - */ -static struct clk_duplicate tegra_clk_duplicates[] = { - CLK_DUPLICATE("uarta", "serial8250.0", NULL), - CLK_DUPLICATE("uartb", "serial8250.1", NULL), - CLK_DUPLICATE("uartc", "serial8250.2", NULL), - CLK_DUPLICATE("uartd", "serial8250.3", NULL), - CLK_DUPLICATE("uarte", "serial8250.4", NULL), - CLK_DUPLICATE("usbd", "utmip-pad", NULL), - CLK_DUPLICATE("usbd", "tegra-ehci.0", NULL), - CLK_DUPLICATE("usbd", "tegra-otg", NULL), - CLK_DUPLICATE("dsib", "tegradc.0", "dsib"), - CLK_DUPLICATE("dsia", "tegradc.1", "dsia"), - CLK_DUPLICATE("bsev", "tegra-avp", "bsev"), - CLK_DUPLICATE("bsev", "nvavp", "bsev"), - CLK_DUPLICATE("vde", "tegra-aes", "vde"), - CLK_DUPLICATE("bsea", "tegra-aes", "bsea"), - CLK_DUPLICATE("bsea", "nvavp", "bsea"), - CLK_DUPLICATE("cml1", "tegra_sata_cml", NULL), - CLK_DUPLICATE("cml0", "tegra_pcie", "cml"), - CLK_DUPLICATE("pciex", "tegra_pcie", "pciex"), - CLK_DUPLICATE("i2c1", "tegra-i2c-slave.0", NULL), - CLK_DUPLICATE("i2c2", "tegra-i2c-slave.1", NULL), - CLK_DUPLICATE("i2c3", "tegra-i2c-slave.2", NULL), - CLK_DUPLICATE("i2c4", "tegra-i2c-slave.3", NULL), - CLK_DUPLICATE("i2c5", "tegra-i2c-slave.4", NULL), - CLK_DUPLICATE("sbc1", "spi_slave_tegra.0", NULL), - CLK_DUPLICATE("sbc2", "spi_slave_tegra.1", NULL), - CLK_DUPLICATE("sbc3", "spi_slave_tegra.2", NULL), - CLK_DUPLICATE("sbc4", "spi_slave_tegra.3", NULL), - CLK_DUPLICATE("sbc5", "spi_slave_tegra.4", NULL), - CLK_DUPLICATE("sbc6", "spi_slave_tegra.5", NULL), - CLK_DUPLICATE("twd", "smp_twd", NULL), - CLK_DUPLICATE("vcp", "nvavp", "vcp"), - CLK_DUPLICATE("i2s0", NULL, "i2s0"), - CLK_DUPLICATE("i2s1", NULL, "i2s1"), - CLK_DUPLICATE("i2s2", NULL, "i2s2"), - CLK_DUPLICATE("i2s3", NULL, "i2s3"), - CLK_DUPLICATE("i2s4", NULL, "i2s4"), - CLK_DUPLICATE("dam0", NULL, "dam0"), - CLK_DUPLICATE("dam1", NULL, "dam1"), - CLK_DUPLICATE("dam2", NULL, "dam2"), - CLK_DUPLICATE("spdif_in", NULL, "spdif_in"), - CLK_DUPLICATE("pll_p_out3", "tegra-i2c.0", "fast-clk"), - CLK_DUPLICATE("pll_p_out3", "tegra-i2c.1", "fast-clk"), - CLK_DUPLICATE("pll_p_out3", "tegra-i2c.2", "fast-clk"), - CLK_DUPLICATE("pll_p_out3", "tegra-i2c.3", "fast-clk"), - CLK_DUPLICATE("pll_p_out3", "tegra-i2c.4", "fast-clk"), - CLK_DUPLICATE("pll_p", "tegradc.0", "parent"), - CLK_DUPLICATE("pll_p", "tegradc.1", "parent"), - CLK_DUPLICATE("pll_d2_out0", "hdmi", "parent"), -}; - -static struct clk *tegra_ptr_clks[] = { - &tegra_clk_32k, - &tegra_clk_m, - &tegra_clk_m_div2, - &tegra_clk_m_div4, - &tegra_pll_ref, - &tegra_pll_m, - &tegra_pll_m_out1, - &tegra_pll_c, - &tegra_pll_c_out1, - &tegra_pll_p, - &tegra_pll_p_out1, - &tegra_pll_p_out2, - &tegra_pll_p_out3, - &tegra_pll_p_out4, - &tegra_pll_a, - &tegra_pll_a_out0, - &tegra_pll_d, - &tegra_pll_d_out0, - &tegra_pll_d2, - &tegra_pll_d2_out0, - &tegra_pll_u, - &tegra_pll_x, - &tegra_pll_x_out0, - &tegra_pll_e, - &tegra_clk_cclk_g, - &tegra_cml0, - &tegra_cml1, - &tegra_pciex, - &tegra_clk_sclk, - &tegra_hclk, - &tegra_pclk, - &tegra_clk_blink, - &tegra30_clk_twd, -}; - -static void tegra30_init_one_clock(struct clk *c) -{ - struct clk_tegra *clk = to_clk_tegra(c->hw); - __clk_init(NULL, c); - INIT_LIST_HEAD(&clk->shared_bus_list); - if (!clk->lookup.dev_id && !clk->lookup.con_id) - clk->lookup.con_id = c->name; - clk->lookup.clk = c; - clkdev_add(&clk->lookup); - tegra_clk_add(c); -} - -void __init tegra30_init_clocks(void) -{ - int i; - struct clk *c; - - for (i = 0; i < ARRAY_SIZE(tegra_ptr_clks); i++) - tegra30_init_one_clock(tegra_ptr_clks[i]); - - for (i = 0; i < ARRAY_SIZE(tegra_list_clks); i++) - tegra30_init_one_clock(tegra_list_clks[i]); - - for (i = 0; i < ARRAY_SIZE(tegra_clk_duplicates); i++) { - c = tegra_get_clock_by_name(tegra_clk_duplicates[i].name); - if (!c) { - pr_err("%s: Unknown duplicate clock %s\n", __func__, - tegra_clk_duplicates[i].name); - continue; - } - - tegra_clk_duplicates[i].lookup.clk = c; - clkdev_add(&tegra_clk_duplicates[i].lookup); - } - - for (i = 0; i < ARRAY_SIZE(tegra_sync_source_list); i++) - tegra30_init_one_clock(tegra_sync_source_list[i]); - for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_list); i++) - tegra30_init_one_clock(tegra_clk_audio_list[i]); - for (i = 0; i < ARRAY_SIZE(tegra_clk_audio_2x_list); i++) - tegra30_init_one_clock(tegra_clk_audio_2x_list[i]); - - for (i = 0; i < ARRAY_SIZE(tegra_clk_out_list); i++) - tegra30_init_one_clock(tegra_clk_out_list[i]); - - tegra30_cpu_car_ops_init(); -} diff --git a/include/linux/clk/tegra.h b/include/linux/clk/tegra.h index a7e5a3999099..404d6f940872 100644 --- a/include/linux/clk/tegra.h +++ b/include/linux/clk/tegra.h @@ -120,8 +120,6 @@ static inline void tegra_cpu_clock_resume(void) } #endif -void tegra20_cpu_car_ops_init(void); -void tegra30_cpu_car_ops_init(void); void tegra_periph_reset_deassert(struct clk *c); void tegra_periph_reset_assert(struct clk *c); void tegra_clocks_init(void); -- cgit v1.2.3 From 8d8b43dae3b714582cbdb99d88847cc1757952ee Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 11 Jan 2013 13:31:21 +0530 Subject: ARM: tegra: add clock properties to Tegra20 DT Add clock information to device nodes. Signed-off-by: Prashant Gaikwad Signed-off-by: Stephen Warren --- arch/arm/boot/dts/tegra20.dtsi | 44 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 44 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/tegra20.dtsi b/arch/arm/boot/dts/tegra20.dtsi index 5b104f1d5003..d665a67d4358 100644 --- a/arch/arm/boot/dts/tegra20.dtsi +++ b/arch/arm/boot/dts/tegra20.dtsi @@ -9,6 +9,7 @@ reg = <0x50000000 0x00024000>; interrupts = <0 65 0x04 /* mpcore syncpt */ 0 67 0x04>; /* mpcore general */ + clocks = <&tegra_car 28>; #address-cells = <1>; #size-cells = <1>; @@ -19,41 +20,49 @@ compatible = "nvidia,tegra20-mpe"; reg = <0x54040000 0x00040000>; interrupts = <0 68 0x04>; + clocks = <&tegra_car 60>; }; vi { compatible = "nvidia,tegra20-vi"; reg = <0x54080000 0x00040000>; interrupts = <0 69 0x04>; + clocks = <&tegra_car 100>; }; epp { compatible = "nvidia,tegra20-epp"; reg = <0x540c0000 0x00040000>; interrupts = <0 70 0x04>; + clocks = <&tegra_car 19>; }; isp { compatible = "nvidia,tegra20-isp"; reg = <0x54100000 0x00040000>; interrupts = <0 71 0x04>; + clocks = <&tegra_car 23>; }; gr2d { compatible = "nvidia,tegra20-gr2d"; reg = <0x54140000 0x00040000>; interrupts = <0 72 0x04>; + clocks = <&tegra_car 21>; }; gr3d { compatible = "nvidia,tegra20-gr3d"; reg = <0x54180000 0x00040000>; + clocks = <&tegra_car 24>; }; dc@54200000 { compatible = "nvidia,tegra20-dc"; reg = <0x54200000 0x00040000>; interrupts = <0 73 0x04>; + clocks = <&tegra_car 27>, <&tegra_car 121>; + clock-names = "disp1", "parent"; rgb { status = "disabled"; @@ -64,6 +73,8 @@ compatible = "nvidia,tegra20-dc"; reg = <0x54240000 0x00040000>; interrupts = <0 74 0x04>; + clocks = <&tegra_car 26>, <&tegra_car 121>; + clock-names = "disp2", "parent"; rgb { status = "disabled"; @@ -74,6 +85,8 @@ compatible = "nvidia,tegra20-hdmi"; reg = <0x54280000 0x00040000>; interrupts = <0 75 0x04>; + clocks = <&tegra_car 51>, <&tegra_car 117>; + clock-names = "hdmi", "parent"; status = "disabled"; }; @@ -81,12 +94,14 @@ compatible = "nvidia,tegra20-tvo"; reg = <0x542c0000 0x00040000>; interrupts = <0 76 0x04>; + clocks = <&tegra_car 102>; status = "disabled"; }; dsi { compatible = "nvidia,tegra20-dsi"; reg = <0x54300000 0x00040000>; + clocks = <&tegra_car 48>; status = "disabled"; }; }; @@ -148,6 +163,7 @@ 0 117 0x04 0 118 0x04 0 119 0x04>; + clocks = <&tegra_car 34>; }; ahb { @@ -189,6 +205,7 @@ reg = <0x70002800 0x200>; interrupts = <0 13 0x04>; nvidia,dma-request-selector = <&apbdma 2>; + clocks = <&tegra_car 11>; status = "disabled"; }; @@ -197,6 +214,7 @@ reg = <0x70002a00 0x200>; interrupts = <0 3 0x04>; nvidia,dma-request-selector = <&apbdma 1>; + clocks = <&tegra_car 18>; status = "disabled"; }; @@ -205,6 +223,7 @@ reg = <0x70006000 0x40>; reg-shift = <2>; interrupts = <0 36 0x04>; + clocks = <&tegra_car 6>; status = "disabled"; }; @@ -213,6 +232,7 @@ reg = <0x70006040 0x40>; reg-shift = <2>; interrupts = <0 37 0x04>; + clocks = <&tegra_car 96>; status = "disabled"; }; @@ -221,6 +241,7 @@ reg = <0x70006200 0x100>; reg-shift = <2>; interrupts = <0 46 0x04>; + clocks = <&tegra_car 55>; status = "disabled"; }; @@ -229,6 +250,7 @@ reg = <0x70006300 0x100>; reg-shift = <2>; interrupts = <0 90 0x04>; + clocks = <&tegra_car 65>; status = "disabled"; }; @@ -237,6 +259,7 @@ reg = <0x70006400 0x100>; reg-shift = <2>; interrupts = <0 91 0x04>; + clocks = <&tegra_car 66>; status = "disabled"; }; @@ -244,6 +267,7 @@ compatible = "nvidia,tegra20-pwm"; reg = <0x7000a000 0x100>; #pwm-cells = <2>; + clocks = <&tegra_car 17>; }; rtc { @@ -258,6 +282,8 @@ interrupts = <0 38 0x04>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 12>, <&tegra_car 124>; + clock-names = "div-clk", "fast-clk"; status = "disabled"; }; @@ -268,6 +294,7 @@ nvidia,dma-request-selector = <&apbdma 11>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 43>; status = "disabled"; }; @@ -277,6 +304,8 @@ interrupts = <0 84 0x04>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 54>, <&tegra_car 124>; + clock-names = "div-clk", "fast-clk"; status = "disabled"; }; @@ -286,6 +315,8 @@ interrupts = <0 92 0x04>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 67>, <&tegra_car 124>; + clock-names = "div-clk", "fast-clk"; status = "disabled"; }; @@ -295,6 +326,8 @@ interrupts = <0 53 0x04>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 47>, <&tegra_car 124>; + clock-names = "div-clk", "fast-clk"; status = "disabled"; }; @@ -305,6 +338,7 @@ nvidia,dma-request-selector = <&apbdma 15>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 41>; status = "disabled"; }; @@ -315,6 +349,7 @@ nvidia,dma-request-selector = <&apbdma 16>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 44>; status = "disabled"; }; @@ -325,6 +360,7 @@ nvidia,dma-request-selector = <&apbdma 17>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 46>; status = "disabled"; }; @@ -335,6 +371,7 @@ nvidia,dma-request-selector = <&apbdma 18>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 68>; status = "disabled"; }; @@ -369,6 +406,7 @@ interrupts = <0 20 0x04>; phy_type = "utmi"; nvidia,has-legacy-mode; + clocks = <&tegra_car 22>; status = "disabled"; }; @@ -377,6 +415,7 @@ reg = <0xc5004000 0x4000>; interrupts = <0 21 0x04>; phy_type = "ulpi"; + clocks = <&tegra_car 58>; status = "disabled"; }; @@ -385,6 +424,7 @@ reg = <0xc5008000 0x4000>; interrupts = <0 97 0x04>; phy_type = "utmi"; + clocks = <&tegra_car 59>; status = "disabled"; }; @@ -392,6 +432,7 @@ compatible = "nvidia,tegra20-sdhci"; reg = <0xc8000000 0x200>; interrupts = <0 14 0x04>; + clocks = <&tegra_car 14>; status = "disabled"; }; @@ -399,6 +440,7 @@ compatible = "nvidia,tegra20-sdhci"; reg = <0xc8000200 0x200>; interrupts = <0 15 0x04>; + clocks = <&tegra_car 9>; status = "disabled"; }; @@ -406,6 +448,7 @@ compatible = "nvidia,tegra20-sdhci"; reg = <0xc8000400 0x200>; interrupts = <0 19 0x04>; + clocks = <&tegra_car 69>; status = "disabled"; }; @@ -413,6 +456,7 @@ compatible = "nvidia,tegra20-sdhci"; reg = <0xc8000600 0x200>; interrupts = <0 31 0x04>; + clocks = <&tegra_car 15>; status = "disabled"; }; -- cgit v1.2.3 From 1cbc733d1e6626efa9b20231668fa2523f3eafeb Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 11 Jan 2013 13:31:22 +0530 Subject: ARM: tegra: add clock properties to Tegra30 DT Add clock information to device nodes. Signed-off-by: Prashant Gaikwad [swarren: added second clock to 3d node] Signed-off-by: Stephen Warren --- arch/arm/boot/dts/tegra30.dtsi | 56 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 55 insertions(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/tegra30.dtsi b/arch/arm/boot/dts/tegra30.dtsi index 6765646c2248..b1483d925878 100644 --- a/arch/arm/boot/dts/tegra30.dtsi +++ b/arch/arm/boot/dts/tegra30.dtsi @@ -9,6 +9,7 @@ reg = <0x50000000 0x00024000>; interrupts = <0 65 0x04 /* mpcore syncpt */ 0 67 0x04>; /* mpcore general */ + clocks = <&tegra_car 28>; #address-cells = <1>; #size-cells = <1>; @@ -19,41 +20,50 @@ compatible = "nvidia,tegra30-mpe"; reg = <0x54040000 0x00040000>; interrupts = <0 68 0x04>; + clocks = <&tegra_car 60>; }; vi { compatible = "nvidia,tegra30-vi"; reg = <0x54080000 0x00040000>; interrupts = <0 69 0x04>; + clocks = <&tegra_car 164>; }; epp { compatible = "nvidia,tegra30-epp"; reg = <0x540c0000 0x00040000>; interrupts = <0 70 0x04>; + clocks = <&tegra_car 19>; }; isp { compatible = "nvidia,tegra30-isp"; reg = <0x54100000 0x00040000>; interrupts = <0 71 0x04>; + clocks = <&tegra_car 23>; }; gr2d { compatible = "nvidia,tegra30-gr2d"; reg = <0x54140000 0x00040000>; interrupts = <0 72 0x04>; + clocks = <&tegra_car 21>; }; gr3d { compatible = "nvidia,tegra30-gr3d"; reg = <0x54180000 0x00040000>; + clocks = <&tegra_car 24 &tegra_car 98>; + clock-names = "3d", "3d2"; }; dc@54200000 { compatible = "nvidia,tegra30-dc"; reg = <0x54200000 0x00040000>; interrupts = <0 73 0x04>; + clocks = <&tegra_car 27>, <&tegra_car 179>; + clock-names = "disp1", "parent"; rgb { status = "disabled"; @@ -64,6 +74,8 @@ compatible = "nvidia,tegra30-dc"; reg = <0x54240000 0x00040000>; interrupts = <0 74 0x04>; + clocks = <&tegra_car 26>, <&tegra_car 179>; + clock-names = "disp2", "parent"; rgb { status = "disabled"; @@ -74,6 +86,8 @@ compatible = "nvidia,tegra30-hdmi"; reg = <0x54280000 0x00040000>; interrupts = <0 75 0x04>; + clocks = <&tegra_car 51>, <&tegra_car 189>; + clock-names = "hdmi", "parent"; status = "disabled"; }; @@ -81,12 +95,14 @@ compatible = "nvidia,tegra30-tvo"; reg = <0x542c0000 0x00040000>; interrupts = <0 76 0x04>; + clocks = <&tegra_car 169>; status = "disabled"; }; dsi { compatible = "nvidia,tegra30-dsi"; reg = <0x54300000 0x00040000>; + clocks = <&tegra_car 48>; status = "disabled"; }; }; @@ -166,6 +182,7 @@ 0 141 0x04 0 142 0x04 0 143 0x04>; + clocks = <&tegra_car 34>; }; ahb: ahb { @@ -201,6 +218,7 @@ reg = <0x70006000 0x40>; reg-shift = <2>; interrupts = <0 36 0x04>; + clocks = <&tegra_car 6>; status = "disabled"; }; @@ -209,6 +227,7 @@ reg = <0x70006040 0x40>; reg-shift = <2>; interrupts = <0 37 0x04>; + clocks = <&tegra_car 160>; status = "disabled"; }; @@ -217,6 +236,7 @@ reg = <0x70006200 0x100>; reg-shift = <2>; interrupts = <0 46 0x04>; + clocks = <&tegra_car 55>; status = "disabled"; }; @@ -225,6 +245,7 @@ reg = <0x70006300 0x100>; reg-shift = <2>; interrupts = <0 90 0x04>; + clocks = <&tegra_car 65>; status = "disabled"; }; @@ -233,6 +254,7 @@ reg = <0x70006400 0x100>; reg-shift = <2>; interrupts = <0 91 0x04>; + clocks = <&tegra_car 66>; status = "disabled"; }; @@ -240,6 +262,7 @@ compatible = "nvidia,tegra30-pwm", "nvidia,tegra20-pwm"; reg = <0x7000a000 0x100>; #pwm-cells = <2>; + clocks = <&tegra_car 17>; }; rtc { @@ -254,6 +277,8 @@ interrupts = <0 38 0x04>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 12>, <&tegra_car 182>; + clock-names = "div-clk", "fast-clk"; status = "disabled"; }; @@ -263,6 +288,8 @@ interrupts = <0 84 0x04>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 54>, <&tegra_car 182>; + clock-names = "div-clk", "fast-clk"; status = "disabled"; }; @@ -272,6 +299,8 @@ interrupts = <0 92 0x04>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 67>, <&tegra_car 182>; + clock-names = "div-clk", "fast-clk"; status = "disabled"; }; @@ -281,6 +310,8 @@ interrupts = <0 120 0x04>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 103>, <&tegra_car 182>; + clock-names = "div-clk", "fast-clk"; status = "disabled"; }; @@ -290,6 +321,8 @@ interrupts = <0 53 0x04>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 47>, <&tegra_car 182>; + clock-names = "div-clk", "fast-clk"; status = "disabled"; }; @@ -300,6 +333,7 @@ nvidia,dma-request-selector = <&apbdma 15>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 41>; status = "disabled"; }; @@ -310,6 +344,7 @@ nvidia,dma-request-selector = <&apbdma 16>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 44>; status = "disabled"; }; @@ -320,6 +355,7 @@ nvidia,dma-request-selector = <&apbdma 17>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 46>; status = "disabled"; }; @@ -330,6 +366,7 @@ nvidia,dma-request-selector = <&apbdma 18>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 68>; status = "disabled"; }; @@ -340,6 +377,7 @@ nvidia,dma-request-selector = <&apbdma 27>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 104>; status = "disabled"; }; @@ -350,6 +388,7 @@ nvidia,dma-request-selector = <&apbdma 28>; #address-cells = <1>; #size-cells = <0>; + clocks = <&tegra_car 105>; status = "disabled"; }; @@ -383,7 +422,13 @@ 0x70080200 0x100>; interrupts = <0 103 0x04>; nvidia,dma-request-selector = <&apbdma 1>; - + clocks = <&tegra_car 106>, <&tegra_car 107>, <&tegra_car 30>, + <&tegra_car 11>, <&tegra_car 18>, <&tegra_car 101>, + <&tegra_car 102>, <&tegra_car 108>, <&tegra_car 109>, + <&tegra_car 110>, <&tegra_car 162>; + clock-names = "d_audio", "apbif", "i2s0", "i2s1", "i2s2", + "i2s3", "i2s4", "dam0", "dam1", "dam2", + "spdif_in"; ranges; #address-cells = <1>; #size-cells = <1>; @@ -392,6 +437,7 @@ compatible = "nvidia,tegra30-i2s"; reg = <0x70080300 0x100>; nvidia,ahub-cif-ids = <4 4>; + clocks = <&tegra_car 30>; status = "disabled"; }; @@ -399,6 +445,7 @@ compatible = "nvidia,tegra30-i2s"; reg = <0x70080400 0x100>; nvidia,ahub-cif-ids = <5 5>; + clocks = <&tegra_car 11>; status = "disabled"; }; @@ -406,6 +453,7 @@ compatible = "nvidia,tegra30-i2s"; reg = <0x70080500 0x100>; nvidia,ahub-cif-ids = <6 6>; + clocks = <&tegra_car 18>; status = "disabled"; }; @@ -413,6 +461,7 @@ compatible = "nvidia,tegra30-i2s"; reg = <0x70080600 0x100>; nvidia,ahub-cif-ids = <7 7>; + clocks = <&tegra_car 101>; status = "disabled"; }; @@ -420,6 +469,7 @@ compatible = "nvidia,tegra30-i2s"; reg = <0x70080700 0x100>; nvidia,ahub-cif-ids = <8 8>; + clocks = <&tegra_car 102>; status = "disabled"; }; }; @@ -428,6 +478,7 @@ compatible = "nvidia,tegra30-sdhci", "nvidia,tegra20-sdhci"; reg = <0x78000000 0x200>; interrupts = <0 14 0x04>; + clocks = <&tegra_car 14>; status = "disabled"; }; @@ -435,6 +486,7 @@ compatible = "nvidia,tegra30-sdhci", "nvidia,tegra20-sdhci"; reg = <0x78000200 0x200>; interrupts = <0 15 0x04>; + clocks = <&tegra_car 9>; status = "disabled"; }; @@ -442,6 +494,7 @@ compatible = "nvidia,tegra30-sdhci", "nvidia,tegra20-sdhci"; reg = <0x78000400 0x200>; interrupts = <0 19 0x04>; + clocks = <&tegra_car 69>; status = "disabled"; }; @@ -449,6 +502,7 @@ compatible = "nvidia,tegra30-sdhci", "nvidia,tegra20-sdhci"; reg = <0x78000600 0x200>; interrupts = <0 31 0x04>; + clocks = <&tegra_car 15>; status = "disabled"; }; -- cgit v1.2.3 From d409b3af89e93f1e08acf157126fc77188e2b89c Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 11 Jan 2013 13:31:23 +0530 Subject: ARM: tegra: paz00: add clock information to DT Add clock i2c clock information to device node. Signed-off-by: Prashant Gaikwad Signed-off-by: Stephen Warren --- arch/arm/boot/dts/tegra20-paz00.dts | 2 ++ 1 file changed, 2 insertions(+) (limited to 'arch/arm') diff --git a/arch/arm/boot/dts/tegra20-paz00.dts b/arch/arm/boot/dts/tegra20-paz00.dts index 6a93d1404c76..a965fe9c7aa1 100644 --- a/arch/arm/boot/dts/tegra20-paz00.dts +++ b/arch/arm/boot/dts/tegra20-paz00.dts @@ -266,6 +266,8 @@ clock-frequency = <80000>; request-gpios = <&gpio 170 0>; /* gpio PV2 */ slave-addr = <138>; + clocks = <&tegra_car 67>, <&tegra_car 124>; + clock-names = "div-clk", "fast-clk"; }; i2c@7000d000 { -- cgit v1.2.3 From 0d4b5ba525827731cfb2682404633b38f0a0e18c Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 11 Jan 2013 13:31:26 +0530 Subject: ARM: tegra20: remove auxdata Remove AUXDATA as clock are initialized from device node. Signed-off-by: Prashant Gaikwad Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/board-dt-tegra20.c | 24 ------------------------ 1 file changed, 24 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/board-dt-tegra20.c b/arch/arm/mach-tegra/board-dt-tegra20.c index 0c11b8af3af3..5049edf68f4f 100644 --- a/arch/arm/mach-tegra/board-dt-tegra20.c +++ b/arch/arm/mach-tegra/board-dt-tegra20.c @@ -70,36 +70,12 @@ static struct tegra_ehci_platform_data tegra_ehci3_pdata = { }; static struct of_dev_auxdata tegra20_auxdata_lookup[] __initdata = { - OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC1_BASE, "sdhci-tegra.0", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC2_BASE, "sdhci-tegra.1", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC3_BASE, "sdhci-tegra.2", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-sdhci", TEGRA_SDMMC4_BASE, "sdhci-tegra.3", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C_BASE, "tegra-i2c.0", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C2_BASE, "tegra-i2c.1", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-i2c", TEGRA_I2C3_BASE, "tegra-i2c.2", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-i2c-dvc", TEGRA_DVC_BASE, "tegra-i2c.3", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S1_BASE, "tegra20-i2s.0", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-i2s", TEGRA_I2S2_BASE, "tegra20-i2s.1", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-das", TEGRA_APB_MISC_DAS_BASE, "tegra20-das", NULL), OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB_BASE, "tegra-ehci.0", &tegra_ehci1_pdata), OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB2_BASE, "tegra-ehci.1", &tegra_ehci2_pdata), OF_DEV_AUXDATA("nvidia,tegra20-ehci", TEGRA_USB3_BASE, "tegra-ehci.2", &tegra_ehci3_pdata), - OF_DEV_AUXDATA("nvidia,tegra20-apbdma", TEGRA_APB_DMA_BASE, "tegra-apbdma", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-pwm", TEGRA_PWFM_BASE, "tegra-pwm", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-sflash", 0x7000c380, "spi", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-slink", 0x7000D400, "spi_tegra.0", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-slink", 0x7000D600, "spi_tegra.1", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-slink", 0x7000D800, "spi_tegra.2", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-slink", 0x7000DA00, "spi_tegra.3", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-host1x", 0x50000000, "host1x", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-dc", 0x54200000, "tegradc.0", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-dc", 0x54240000, "tegradc.1", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-hdmi", 0x54280000, "hdmi", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-dsi", 0x54300000, "dsi", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-tvo", 0x542c0000, "tvo", NULL), {} }; -- cgit v1.2.3 From 3c3a8aa9ccc47c4c2c53ab35a87db3bb93c6e450 Mon Sep 17 00:00:00 2001 From: Prashant Gaikwad Date: Fri, 11 Jan 2013 13:31:27 +0530 Subject: ARM: tegra30: remove auxdata Remove AUXDATA as clocks are initialized from device node. Signed-off-by: Prashant Gaikwad Signed-off-by: Stephen Warren --- arch/arm/mach-tegra/board-dt-tegra30.c | 31 +------------------------------ 1 file changed, 1 insertion(+), 30 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-tegra/board-dt-tegra30.c b/arch/arm/mach-tegra/board-dt-tegra30.c index 92f6014d22a1..5b58b6439db6 100644 --- a/arch/arm/mach-tegra/board-dt-tegra30.c +++ b/arch/arm/mach-tegra/board-dt-tegra30.c @@ -38,38 +38,9 @@ #include "common.h" #include "iomap.h" -static struct of_dev_auxdata tegra30_auxdata_lookup[] __initdata = { - OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000000, "sdhci-tegra.0", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000200, "sdhci-tegra.1", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000400, "sdhci-tegra.2", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-sdhci", 0x78000600, "sdhci-tegra.3", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C000, "tegra-i2c.0", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C400, "tegra-i2c.1", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C500, "tegra-i2c.2", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000C700, "tegra-i2c.3", NULL), - OF_DEV_AUXDATA("nvidia,tegra20-i2c", 0x7000D000, "tegra-i2c.4", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-ahub", 0x70080000, "tegra30-ahub", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-apbdma", 0x6000a000, "tegra-apbdma", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-pwm", TEGRA_PWFM_BASE, "tegra-pwm", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-slink", 0x7000D400, "spi_tegra.0", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-slink", 0x7000D600, "spi_tegra.1", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-slink", 0x7000D800, "spi_tegra.2", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-slink", 0x7000DA00, "spi_tegra.3", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-slink", 0x7000DC00, "spi_tegra.4", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-slink", 0x7000DE00, "spi_tegra.5", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-host1x", 0x50000000, "host1x", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-dc", 0x54200000, "tegradc.0", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-dc", 0x54240000, "tegradc.1", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-hdmi", 0x54280000, "hdmi", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-dsi", 0x54300000, "dsi", NULL), - OF_DEV_AUXDATA("nvidia,tegra30-tvo", 0x542c0000, "tvo", NULL), - {} -}; - static void __init tegra30_dt_init(void) { - of_platform_populate(NULL, of_default_bus_match_table, - tegra30_auxdata_lookup, NULL); + of_platform_populate(NULL, of_default_bus_match_table, NULL, NULL); } static const char *tegra30_dt_board_compat[] = { -- cgit v1.2.3