diff options
Diffstat (limited to 'arch/arm/mach-omap2')
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 3 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/clkt34xx_dpll3m2.c | 122 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/devices.c | 53 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/devices.h | 19 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap-hotplug.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/omap-wakeupgen.c | 10 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm44xx.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/powerdomains3xxx_data.c | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sram.c | 25 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sram.h | 14 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sram34xx.S | 346 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/vc.c | 4 |
12 files changed, 6 insertions, 596 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index 935869698cbc..ceefcee6bb85 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -48,11 +48,9 @@ AFLAGS_sleep44xx.o :=-Wa,-march=armv7-a$(plus_sec) # Functions loaded to SRAM obj-$(CONFIG_SOC_OMAP2420) += sram242x.o obj-$(CONFIG_SOC_OMAP2430) += sram243x.o -obj-$(CONFIG_ARCH_OMAP3) += sram34xx.o AFLAGS_sram242x.o :=-Wa,-march=armv6 AFLAGS_sram243x.o :=-Wa,-march=armv6 -AFLAGS_sram34xx.o :=-Wa,-march=armv7-a # Restart code (OMAP4/5 currently in omap4-common.c) obj-$(CONFIG_SOC_OMAP2420) += omap2-restart.o @@ -186,7 +184,6 @@ obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpllcore.o obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_virt_prcm_set.o obj-$(CONFIG_ARCH_OMAP2) += clkt2xxx_dpll.o obj-$(CONFIG_ARCH_OMAP3) += $(clock-common) -obj-$(CONFIG_ARCH_OMAP3) += clkt34xx_dpll3m2.o obj-$(CONFIG_ARCH_OMAP4) += $(clock-common) obj-$(CONFIG_SOC_AM33XX) += $(clock-common) obj-$(CONFIG_SOC_OMAP5) += $(clock-common) diff --git a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c b/arch/arm/mach-omap2/clkt34xx_dpll3m2.c deleted file mode 100644 index 3f6521313c93..000000000000 --- a/arch/arm/mach-omap2/clkt34xx_dpll3m2.c +++ /dev/null @@ -1,122 +0,0 @@ -/* - * OMAP34xx M2 divider clock code - * - * Copyright (C) 2007-2008 Texas Instruments, Inc. - * Copyright (C) 2007-2010 Nokia Corporation - * - * Paul Walmsley - * Jouni Högander - * - * Parts of this code are based on code written by - * Richard Woodruff, Tony Lindgren, Tuukka Tikkanen, Karthik Dasu - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License version 2 as - * published by the Free Software Foundation. - */ -#undef DEBUG - -#include <linux/kernel.h> -#include <linux/errno.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include "clock.h" -#include "clock3xxx.h" -#include "sdrc.h" -#include "sram.h" - -#define CYCLES_PER_MHZ 1000000 - -struct clk *sdrc_ick_p, *arm_fck_p; - -/* - * CORE DPLL (DPLL3) M2 divider rate programming functions - * - * These call into SRAM code to do the actual CM writes, since the SDRAM - * is clocked from DPLL3. - */ - -/** - * omap3_core_dpll_m2_set_rate - set CORE DPLL M2 divider - * @clk: struct clk * of DPLL to set - * @rate: rounded target rate - * - * Program the DPLL M2 divider with the rounded target rate. Returns - * -EINVAL upon error, or 0 upon success. - */ -int omap3_core_dpll_m2_set_rate(struct clk_hw *hw, unsigned long rate, - unsigned long parent_rate) -{ - struct clk_hw_omap *clk = to_clk_hw_omap(hw); - u32 new_div = 0; - u32 unlock_dll = 0; - u32 c; - unsigned long validrate, sdrcrate, _mpurate; - struct omap_sdrc_params *sdrc_cs0; - struct omap_sdrc_params *sdrc_cs1; - int ret; - unsigned long clkrate; - - if (!clk || !rate) - return -EINVAL; - - new_div = DIV_ROUND_UP(parent_rate, rate); - validrate = parent_rate / new_div; - - if (validrate != rate) - return -EINVAL; - - sdrcrate = clk_get_rate(sdrc_ick_p); - clkrate = clk_hw_get_rate(hw); - if (rate > clkrate) - sdrcrate <<= ((rate / clkrate) >> 1); - else - sdrcrate >>= ((clkrate / rate) >> 1); - - ret = omap2_sdrc_get_params(sdrcrate, &sdrc_cs0, &sdrc_cs1); - if (ret) - return -EINVAL; - - if (sdrcrate < MIN_SDRC_DLL_LOCK_FREQ) { - pr_debug("clock: will unlock SDRC DLL\n"); - unlock_dll = 1; - } - - /* - * XXX This only needs to be done when the CPU frequency changes - */ - _mpurate = clk_get_rate(arm_fck_p) / CYCLES_PER_MHZ; - c = (_mpurate << SDRC_MPURATE_SCALE) >> SDRC_MPURATE_BASE_SHIFT; - c += 1; /* for safety */ - c *= SDRC_MPURATE_LOOPS; - c >>= SDRC_MPURATE_SCALE; - if (c == 0) - c = 1; - - pr_debug("clock: changing CORE DPLL rate from %lu to %lu\n", - clkrate, validrate); - pr_debug("clock: SDRC CS0 timing params used: RFR %08x CTRLA %08x CTRLB %08x MR %08x\n", - sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla, - sdrc_cs0->actim_ctrlb, sdrc_cs0->mr); - if (sdrc_cs1) - pr_debug("clock: SDRC CS1 timing params used: RFR %08x CTRLA %08x CTRLB %08x MR %08x\n", - sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla, - sdrc_cs1->actim_ctrlb, sdrc_cs1->mr); - - if (sdrc_cs1) - omap3_configure_core_dpll( - new_div, unlock_dll, c, rate > clkrate, - sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla, - sdrc_cs0->actim_ctrlb, sdrc_cs0->mr, - sdrc_cs1->rfr_ctrl, sdrc_cs1->actim_ctrla, - sdrc_cs1->actim_ctrlb, sdrc_cs1->mr); - else - omap3_configure_core_dpll( - new_div, unlock_dll, c, rate > clkrate, - sdrc_cs0->rfr_ctrl, sdrc_cs0->actim_ctrla, - sdrc_cs0->actim_ctrlb, sdrc_cs0->mr, - 0, 0, 0, 0); - return 0; -} - diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c index a69bd67e9028..9374da313e8e 100644 --- a/arch/arm/mach-omap2/devices.c +++ b/arch/arm/mach-omap2/devices.c @@ -33,7 +33,6 @@ #include "common.h" #include "mux.h" #include "control.h" -#include "devices.h" #include "display.h" #define L3_MODULES_MAX_LEN 12 @@ -67,58 +66,6 @@ static int __init omap3_l3_init(void) } omap_postcore_initcall(omap3_l3_init); -#if defined(CONFIG_IOMMU_API) - -#include <linux/platform_data/iommu-omap.h> - -static struct resource omap3isp_resources[] = { - { - .start = OMAP3430_ISP_BASE, - .end = OMAP3430_ISP_BASE + 0x12fc, - .flags = IORESOURCE_MEM, - }, - { - .start = OMAP3430_ISP_BASE2, - .end = OMAP3430_ISP_BASE2 + 0x0600, - .flags = IORESOURCE_MEM, - }, - { - .start = 24 + OMAP_INTC_START, - .flags = IORESOURCE_IRQ, - } -}; - -static struct platform_device omap3isp_device = { - .name = "omap3isp", - .id = -1, - .num_resources = ARRAY_SIZE(omap3isp_resources), - .resource = omap3isp_resources, -}; - -static struct omap_iommu_arch_data omap3_isp_iommu = { - .name = "mmu_isp", -}; - -int omap3_init_camera(struct isp_platform_data *pdata) -{ - if (of_have_populated_dt()) - omap3_isp_iommu.name = "480bd400.mmu"; - - omap3isp_device.dev.platform_data = pdata; - omap3isp_device.dev.archdata.iommu = &omap3_isp_iommu; - - return platform_device_register(&omap3isp_device); -} - -#else /* !CONFIG_IOMMU_API */ - -int omap3_init_camera(struct isp_platform_data *pdata) -{ - return 0; -} - -#endif - #if defined(CONFIG_OMAP2PLUS_MBOX) || defined(CONFIG_OMAP2PLUS_MBOX_MODULE) static inline void __init omap_init_mbox(void) { diff --git a/arch/arm/mach-omap2/devices.h b/arch/arm/mach-omap2/devices.h deleted file mode 100644 index f61eb6e5d136..000000000000 --- a/arch/arm/mach-omap2/devices.h +++ /dev/null @@ -1,19 +0,0 @@ -/* - * arch/arm/mach-omap2/devices.h - * - * OMAP2 platform device setup/initialization - * - * 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; either version 2 of the License, or - * (at your option) any later version. - */ - -#ifndef __ARCH_ARM_MACH_OMAP_DEVICES_H -#define __ARCH_ARM_MACH_OMAP_DEVICES_H - -struct isp_platform_data; - -int omap3_init_camera(struct isp_platform_data *pdata); - -#endif diff --git a/arch/arm/mach-omap2/omap-hotplug.c b/arch/arm/mach-omap2/omap-hotplug.c index 971791fe9a3f..593fec753b28 100644 --- a/arch/arm/mach-omap2/omap-hotplug.c +++ b/arch/arm/mach-omap2/omap-hotplug.c @@ -27,7 +27,7 @@ * platform-specific code to shutdown a CPU * Called with IRQs disabled */ -void __ref omap4_cpu_die(unsigned int cpu) +void omap4_cpu_die(unsigned int cpu) { unsigned int boot_cpu = 0; void __iomem *base = omap_get_wakeupgen_base(); diff --git a/arch/arm/mach-omap2/omap-wakeupgen.c b/arch/arm/mach-omap2/omap-wakeupgen.c index e1d2e991d17a..68768a1dd8a8 100644 --- a/arch/arm/mach-omap2/omap-wakeupgen.c +++ b/arch/arm/mach-omap2/omap-wakeupgen.c @@ -20,6 +20,7 @@ #include <linux/init.h> #include <linux/io.h> #include <linux/irq.h> +#include <linux/irqchip.h> #include <linux/irqdomain.h> #include <linux/of_address.h> #include <linux/platform_device.h> @@ -330,7 +331,7 @@ static int irq_cpu_hotplug_notify(struct notifier_block *self, return NOTIFY_OK; } -static struct notifier_block __refdata irq_hotplug_notifier = { +static struct notifier_block irq_hotplug_notifier = { .notifier_call = irq_cpu_hotplug_notify, }; @@ -537,9 +538,4 @@ static int __init wakeupgen_init(struct device_node *node, return 0; } - -/* - * We cannot use the IRQCHIP_DECLARE macro that lives in - * drivers/irqchip, so we're forced to roll our own. Not very nice. - */ -OF_DECLARE_2(irqchip, ti_wakeupgen, "ti,omap4-wugen-mpu", wakeupgen_init); +IRQCHIP_DECLARE(ti_wakeupgen, "ti,omap4-wugen-mpu", wakeupgen_init); diff --git a/arch/arm/mach-omap2/pm44xx.c b/arch/arm/mach-omap2/pm44xx.c index d697cecf762b..178e22c146b7 100644 --- a/arch/arm/mach-omap2/pm44xx.c +++ b/arch/arm/mach-omap2/pm44xx.c @@ -210,7 +210,7 @@ static inline int omap4plus_init_static_deps(const struct static_dep_map *map) } map++; - }; + } return 0; } diff --git a/arch/arm/mach-omap2/powerdomains3xxx_data.c b/arch/arm/mach-omap2/powerdomains3xxx_data.c index d31c495175c1..2e00c7f1f471 100644 --- a/arch/arm/mach-omap2/powerdomains3xxx_data.c +++ b/arch/arm/mach-omap2/powerdomains3xxx_data.c @@ -582,7 +582,7 @@ void __init omap3xxx_powerdomains_init(void) /* Only 81xx needs custom pwrdm_operations */ if (!cpu_is_ti81xx()) - pwrdm_register_platform_funcs(&omap3_pwrdm_operations);; + pwrdm_register_platform_funcs(&omap3_pwrdm_operations); rev = omap_rev(); diff --git a/arch/arm/mach-omap2/sram.c b/arch/arm/mach-omap2/sram.c index cd488b80ba36..83d0e61f49e6 100644 --- a/arch/arm/mach-omap2/sram.c +++ b/arch/arm/mach-omap2/sram.c @@ -211,35 +211,10 @@ static inline int omap243x_sram_init(void) #ifdef CONFIG_ARCH_OMAP3 -static u32 (*_omap3_sram_configure_core_dpll)( - u32 m2, u32 unlock_dll, u32 f, u32 inc, - u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, - u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, - u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, - u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); - -u32 omap3_configure_core_dpll(u32 m2, u32 unlock_dll, u32 f, u32 inc, - u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, - u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, - u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, - u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1) -{ - BUG_ON(!_omap3_sram_configure_core_dpll); - return _omap3_sram_configure_core_dpll( - m2, unlock_dll, f, inc, - sdrc_rfr_ctrl_0, sdrc_actim_ctrl_a_0, - sdrc_actim_ctrl_b_0, sdrc_mr_0, - sdrc_rfr_ctrl_1, sdrc_actim_ctrl_a_1, - sdrc_actim_ctrl_b_1, sdrc_mr_1); -} - void omap3_sram_restore_context(void) { omap_sram_reset(); - _omap3_sram_configure_core_dpll = - omap_sram_push(omap3_sram_configure_core_dpll, - omap3_sram_configure_core_dpll_sz); omap_push_sram_idle(); } diff --git a/arch/arm/mach-omap2/sram.h b/arch/arm/mach-omap2/sram.h index 948d3edefc38..18dc884267fa 100644 --- a/arch/arm/mach-omap2/sram.h +++ b/arch/arm/mach-omap2/sram.h @@ -15,12 +15,6 @@ extern void omap2_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type); extern u32 omap2_set_prcm(u32 dpll_ctrl_val, u32 sdrc_rfr_val, int bypass); -extern u32 omap3_configure_core_dpll( - u32 m2, u32 unlock_dll, u32 f, u32 inc, - u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, - u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, - u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, - u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); extern void omap3_sram_restore_context(void); /* Do not use these */ @@ -52,14 +46,6 @@ extern void omap243x_sram_reprogram_sdrc(u32 perf_level, u32 dll_val, u32 mem_type); extern unsigned long omap243x_sram_reprogram_sdrc_sz; -extern u32 omap3_sram_configure_core_dpll( - u32 m2, u32 unlock_dll, u32 f, u32 inc, - u32 sdrc_rfr_ctrl_0, u32 sdrc_actim_ctrl_a_0, - u32 sdrc_actim_ctrl_b_0, u32 sdrc_mr_0, - u32 sdrc_rfr_ctrl_1, u32 sdrc_actim_ctrl_a_1, - u32 sdrc_actim_ctrl_b_1, u32 sdrc_mr_1); -extern unsigned long omap3_sram_configure_core_dpll_sz; - #ifdef CONFIG_PM extern void omap_push_sram_idle(void); #else diff --git a/arch/arm/mach-omap2/sram34xx.S b/arch/arm/mach-omap2/sram34xx.S deleted file mode 100644 index 1446331b576a..000000000000 --- a/arch/arm/mach-omap2/sram34xx.S +++ /dev/null @@ -1,346 +0,0 @@ -/* - * linux/arch/arm/mach-omap3/sram.S - * - * Omap3 specific functions that need to be run in internal SRAM - * - * Copyright (C) 2004, 2007, 2008 Texas Instruments, Inc. - * Copyright (C) 2008 Nokia Corporation - * - * Rajendra Nayak <rnayak@ti.com> - * Richard Woodruff <r-woodruff2@ti.com> - * Paul Walmsley - * - * 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; either version 2 of - * the License, or (at your option) any later version. - * - * 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., 59 Temple Place, Suite 330, Boston, - * MA 02111-1307 USA - */ -#include <linux/linkage.h> - -#include <asm/assembler.h> - -#include "soc.h" -#include "iomap.h" -#include "sdrc.h" -#include "cm3xxx.h" - -/* - * This file needs be built unconditionally as ARM to interoperate correctly - * with non-Thumb-2-capable firmware. - */ - .arm - - .text - -/* r1 parameters */ -#define SDRC_NO_UNLOCK_DLL 0x0 -#define SDRC_UNLOCK_DLL 0x1 - -/* SDRC_DLLA_CTRL bit settings */ -#define FIXEDDELAY_SHIFT 24 -#define FIXEDDELAY_MASK (0xff << FIXEDDELAY_SHIFT) -#define DLLIDLE_MASK 0x4 - -/* - * SDRC_DLLA_CTRL default values: TI hardware team indicates that - * FIXEDDELAY should be initialized to 0xf. This apparently was - * empirically determined during process testing, so no derivation - * was provided. - */ -#define FIXEDDELAY_DEFAULT (0x0f << FIXEDDELAY_SHIFT) - -/* SDRC_DLLA_STATUS bit settings */ -#define LOCKSTATUS_MASK 0x4 - -/* SDRC_POWER bit settings */ -#define SRFRONIDLEREQ_MASK 0x40 - -/* CM_IDLEST1_CORE bit settings */ -#define ST_SDRC_MASK 0x2 - -/* CM_ICLKEN1_CORE bit settings */ -#define EN_SDRC_MASK 0x2 - -/* CM_CLKSEL1_PLL bit settings */ -#define CORE_DPLL_CLKOUT_DIV_SHIFT 0x1b - -/* - * omap3_sram_configure_core_dpll - change DPLL3 M2 divider - * - * Params passed in registers: - * r0 = new M2 divider setting (only 1 and 2 supported right now) - * r1 = unlock SDRC DLL? (1 = yes, 0 = no). Only unlock DLL for - * SDRC rates < 83MHz - * r2 = number of MPU cycles to wait for SDRC to stabilize after - * reprogramming the SDRC when switching to a slower MPU speed - * r3 = increasing SDRC rate? (1 = yes, 0 = no) - * - * Params passed via the stack. The needed params will be copied in SRAM - * before use by the code in SRAM (SDRAM is not accessible during SDRC - * reconfiguration): - * new SDRC_RFR_CTRL_0 register contents - * new SDRC_ACTIM_CTRL_A_0 register contents - * new SDRC_ACTIM_CTRL_B_0 register contents - * new SDRC_MR_0 register value - * new SDRC_RFR_CTRL_1 register contents - * new SDRC_ACTIM_CTRL_A_1 register contents - * new SDRC_ACTIM_CTRL_B_1 register contents - * new SDRC_MR_1 register value - * - * If the param SDRC_RFR_CTRL_1 is 0, the parameters are not programmed into - * the SDRC CS1 registers - * - * NOTE: This code no longer attempts to program the SDRC AC timing and MR - * registers. This is because the code currently cannot ensure that all - * L3 initiators (e.g., sDMA, IVA, DSS DISPC, etc.) are not accessing the - * SDRAM when the registers are written. If the registers are changed while - * an initiator is accessing SDRAM, memory can be corrupted and/or the SDRC - * may enter an unpredictable state. In the future, the intent is to - * re-enable this code in cases where we can ensure that no initiators are - * touching the SDRAM. Until that time, users who know that their use case - * can satisfy the above requirement can enable the CONFIG_OMAP3_SDRC_AC_TIMING - * option. - * - * Richard Woodruff notes that any changes to this code must be carefully - * audited and tested to ensure that they don't cause a TLB miss while - * the SDRAM is inaccessible. Such a situation will crash the system - * since it will cause the ARM MMU to attempt to walk the page tables. - * These crashes may be intermittent. - */ - .align 3 -ENTRY(omap3_sram_configure_core_dpll) - stmfd sp!, {r1-r12, lr} @ store regs to stack - - @ pull the extra args off the stack - @ and store them in SRAM - -/* - * PC-relative stores are deprecated in ARMv7 and lead to undefined behaviour - * in Thumb-2: use a r7 as a base instead. - * Be careful not to clobber r7 when maintaing this file. - */ - THUMB( adr r7, omap3_sram_configure_core_dpll ) - .macro strtext Rt:req, label:req - ARM( str \Rt, \label ) - THUMB( str \Rt, [r7, \label - omap3_sram_configure_core_dpll] ) - .endm - - ldr r4, [sp, #52] - strtext r4, omap_sdrc_rfr_ctrl_0_val - ldr r4, [sp, #56] - strtext r4, omap_sdrc_actim_ctrl_a_0_val - ldr r4, [sp, #60] - strtext r4, omap_sdrc_actim_ctrl_b_0_val - ldr r4, [sp, #64] - strtext r4, omap_sdrc_mr_0_val - ldr r4, [sp, #68] - strtext r4, omap_sdrc_rfr_ctrl_1_val - cmp r4, #0 @ if SDRC_RFR_CTRL_1 is 0, - beq skip_cs1_params @ do not use cs1 params - ldr r4, [sp, #72] - strtext r4, omap_sdrc_actim_ctrl_a_1_val - ldr r4, [sp, #76] - strtext r4, omap_sdrc_actim_ctrl_b_1_val - ldr r4, [sp, #80] - strtext r4, omap_sdrc_mr_1_val -skip_cs1_params: - mrc p15, 0, r8, c1, c0, 0 @ read ctrl register - bic r10, r8, #0x800 @ clear Z-bit, disable branch prediction - mcr p15, 0, r10, c1, c0, 0 @ write ctrl register - dsb @ flush buffered writes to interconnect - isb @ prevent speculative exec past here - cmp r3, #1 @ if increasing SDRC clk rate, - bleq configure_sdrc @ program the SDRC regs early (for RFR) - cmp r1, #SDRC_UNLOCK_DLL @ set the intended DLL state - bleq unlock_dll - blne lock_dll - bl sdram_in_selfrefresh @ put SDRAM in self refresh, idle SDRC - bl configure_core_dpll @ change the DPLL3 M2 divider - mov r12, r2 - bl wait_clk_stable @ wait for SDRC to stabilize - bl enable_sdrc @ take SDRC out of idle - cmp r1, #SDRC_UNLOCK_DLL @ wait for DLL status to change - bleq wait_dll_unlock - blne wait_dll_lock - cmp r3, #1 @ if increasing SDRC clk rate, - beq return_to_sdram @ return to SDRAM code, otherwise, - bl configure_sdrc @ reprogram SDRC regs now -return_to_sdram: - mcr p15, 0, r8, c1, c0, 0 @ restore ctrl register - isb @ prevent speculative exec past here - mov r0, #0 @ return value - ldmfd sp!, {r1-r12, pc} @ restore regs and return -unlock_dll: - ldr r11, omap3_sdrc_dlla_ctrl - ldr r12, [r11] - bic r12, r12, #FIXEDDELAY_MASK - orr r12, r12, #FIXEDDELAY_DEFAULT - orr r12, r12, #DLLIDLE_MASK - str r12, [r11] @ (no OCP barrier needed) - bx lr -lock_dll: - ldr r11, omap3_sdrc_dlla_ctrl - ldr r12, [r11] - bic r12, r12, #DLLIDLE_MASK - str r12, [r11] @ (no OCP barrier needed) - bx lr -sdram_in_selfrefresh: - ldr r11, omap3_sdrc_power @ read the SDRC_POWER register - ldr r12, [r11] @ read the contents of SDRC_POWER - mov r9, r12 @ keep a copy of SDRC_POWER bits - orr r12, r12, #SRFRONIDLEREQ_MASK @ enable self refresh on idle - str r12, [r11] @ write back to SDRC_POWER register - ldr r12, [r11] @ posted-write barrier for SDRC -idle_sdrc: - ldr r11, omap3_cm_iclken1_core @ read the CM_ICLKEN1_CORE reg - ldr r12, [r11] - bic r12, r12, #EN_SDRC_MASK @ disable iclk bit for SDRC - str r12, [r11] -wait_sdrc_idle: - ldr r11, omap3_cm_idlest1_core - ldr r12, [r11] - and r12, r12, #ST_SDRC_MASK @ check for SDRC idle - cmp r12, #ST_SDRC_MASK - bne wait_sdrc_idle - bx lr -configure_core_dpll: - ldr r11, omap3_cm_clksel1_pll - ldr r12, [r11] - ldr r10, core_m2_mask_val @ modify m2 for core dpll - and r12, r12, r10 - orr r12, r12, r0, lsl #CORE_DPLL_CLKOUT_DIV_SHIFT - str r12, [r11] - ldr r12, [r11] @ posted-write barrier for CM - bx lr -wait_clk_stable: - subs r12, r12, #1 - bne wait_clk_stable - bx lr -enable_sdrc: - ldr r11, omap3_cm_iclken1_core - ldr r12, [r11] - orr r12, r12, #EN_SDRC_MASK @ enable iclk bit for SDRC - str r12, [r11] -wait_sdrc_idle1: - ldr r11, omap3_cm_idlest1_core - ldr r12, [r11] - and r12, r12, #ST_SDRC_MASK - cmp r12, #0 - bne wait_sdrc_idle1 -restore_sdrc_power_val: - ldr r11, omap3_sdrc_power - str r9, [r11] @ restore SDRC_POWER, no barrier needed - bx lr -wait_dll_lock: - ldr r11, omap3_sdrc_dlla_status - ldr r12, [r11] - and r12, r12, #LOCKSTATUS_MASK - cmp r12, #LOCKSTATUS_MASK - bne wait_dll_lock - bx lr -wait_dll_unlock: - ldr r11, omap3_sdrc_dlla_status - ldr r12, [r11] - and r12, r12, #LOCKSTATUS_MASK - cmp r12, #0x0 - bne wait_dll_unlock - bx lr -configure_sdrc: - ldr r12, omap_sdrc_rfr_ctrl_0_val @ fetch value from SRAM - ldr r11, omap3_sdrc_rfr_ctrl_0 @ fetch addr from SRAM - str r12, [r11] @ store -#ifdef CONFIG_OMAP3_SDRC_AC_TIMING - ldr r12, omap_sdrc_actim_ctrl_a_0_val - ldr r11, omap3_sdrc_actim_ctrl_a_0 - str r12, [r11] - ldr r12, omap_sdrc_actim_ctrl_b_0_val - ldr r11, omap3_sdrc_actim_ctrl_b_0 - str r12, [r11] - ldr r12, omap_sdrc_mr_0_val - ldr r11, omap3_sdrc_mr_0 - str r12, [r11] -#endif - ldr r12, omap_sdrc_rfr_ctrl_1_val - cmp r12, #0 @ if SDRC_RFR_CTRL_1 is 0, - beq skip_cs1_prog @ do not program cs1 params - ldr r11, omap3_sdrc_rfr_ctrl_1 - str r12, [r11] -#ifdef CONFIG_OMAP3_SDRC_AC_TIMING - ldr r12, omap_sdrc_actim_ctrl_a_1_val - ldr r11, omap3_sdrc_actim_ctrl_a_1 - str r12, [r11] - ldr r12, omap_sdrc_actim_ctrl_b_1_val - ldr r11, omap3_sdrc_actim_ctrl_b_1 - str r12, [r11] - ldr r12, omap_sdrc_mr_1_val - ldr r11, omap3_sdrc_mr_1 - str r12, [r11] -#endif -skip_cs1_prog: - ldr r12, [r11] @ posted-write barrier for SDRC - bx lr - - .align -omap3_sdrc_power: - .word OMAP34XX_SDRC_REGADDR(SDRC_POWER) -omap3_cm_clksel1_pll: - .word OMAP34XX_CM_REGADDR(PLL_MOD, CM_CLKSEL1) -omap3_cm_idlest1_core: - .word OMAP34XX_CM_REGADDR(CORE_MOD, CM_IDLEST) -omap3_cm_iclken1_core: - .word OMAP34XX_CM_REGADDR(CORE_MOD, CM_ICLKEN1) - -omap3_sdrc_rfr_ctrl_0: - .word OMAP34XX_SDRC_REGADDR(SDRC_RFR_CTRL_0) -omap3_sdrc_rfr_ctrl_1: - .word OMAP34XX_SDRC_REGADDR(SDRC_RFR_CTRL_1) -omap3_sdrc_actim_ctrl_a_0: - .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_A_0) -omap3_sdrc_actim_ctrl_a_1: - .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_A_1) -omap3_sdrc_actim_ctrl_b_0: - .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_B_0) -omap3_sdrc_actim_ctrl_b_1: - .word OMAP34XX_SDRC_REGADDR(SDRC_ACTIM_CTRL_B_1) -omap3_sdrc_mr_0: - .word OMAP34XX_SDRC_REGADDR(SDRC_MR_0) -omap3_sdrc_mr_1: - .word OMAP34XX_SDRC_REGADDR(SDRC_MR_1) -omap_sdrc_rfr_ctrl_0_val: - .word 0xDEADBEEF -omap_sdrc_rfr_ctrl_1_val: - .word 0xDEADBEEF -omap_sdrc_actim_ctrl_a_0_val: - .word 0xDEADBEEF -omap_sdrc_actim_ctrl_a_1_val: - .word 0xDEADBEEF -omap_sdrc_actim_ctrl_b_0_val: - .word 0xDEADBEEF -omap_sdrc_actim_ctrl_b_1_val: - .word 0xDEADBEEF -omap_sdrc_mr_0_val: - .word 0xDEADBEEF -omap_sdrc_mr_1_val: - .word 0xDEADBEEF - -omap3_sdrc_dlla_status: - .word OMAP34XX_SDRC_REGADDR(SDRC_DLLA_STATUS) -omap3_sdrc_dlla_ctrl: - .word OMAP34XX_SDRC_REGADDR(SDRC_DLLA_CTRL) -core_m2_mask_val: - .word 0x07FFFFFF -ENDPROC(omap3_sram_configure_core_dpll) - -ENTRY(omap3_sram_configure_core_dpll_sz) - .word . - omap3_sram_configure_core_dpll - diff --git a/arch/arm/mach-omap2/vc.c b/arch/arm/mach-omap2/vc.c index d44d311704ba..2028167fff31 100644 --- a/arch/arm/mach-omap2/vc.c +++ b/arch/arm/mach-omap2/vc.c @@ -280,10 +280,6 @@ void omap3_vc_set_pmic_signaling(int core_next_state) } } -#define PRM_POLCTRL_TWL_MASK (OMAP3430_PRM_POLCTRL_CLKREQ_POL | \ - OMAP3430_PRM_POLCTRL_CLKREQ_POL) -#define PRM_POLCTRL_TWL_VAL OMAP3430_PRM_POLCTRL_CLKREQ_POL - /* * Configure signal polarity for sys_clkreq and sys_off_mode pins * as the default values are wrong and can cause the system to hang |