From ec53fe3d655befce6420a1b8485af9b1145a0c90 Mon Sep 17 00:00:00 2001 From: Eric Bénard Date: Fri, 30 Jul 2010 22:58:40 +0200 Subject: eukrea-baseboards: fix the merge in one file Last change I did made a big mess in function names and CONFIG names, this patch fixes this so that the baseboard support is really built when selected. Signed-off-by: Eric Bénard Signed-off-by: Sascha Hauer --- arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c | 2 +- arch/arm/mach-mx25/mach-cpuimx25.c | 4 ++-- arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c | 2 +- arch/arm/mach-mx3/mach-cpuimx35.c | 4 ++-- arch/arm/plat-mxc/include/mach/eukrea-baseboards.h | 4 ++-- 5 files changed, 8 insertions(+), 8 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c b/arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c index 91931dcb0689..4aaadc753d3e 100644 --- a/arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c +++ b/arch/arm/mach-mx25/eukrea_mbimxsd-baseboard.c @@ -215,7 +215,7 @@ struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata = { * Add platform devices present on this baseboard and init * them from CPU side as far as required to use them later on */ -void __init eukrea_mbimxsd_baseboard_init(void) +void __init eukrea_mbimxsd25_baseboard_init(void) { if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads, ARRAY_SIZE(eukrea_mbimxsd_pads))) diff --git a/arch/arm/mach-mx25/mach-cpuimx25.c b/arch/arm/mach-mx25/mach-cpuimx25.c index 56b2e26d23b4..b5efee23008f 100644 --- a/arch/arm/mach-mx25/mach-cpuimx25.c +++ b/arch/arm/mach-mx25/mach-cpuimx25.c @@ -147,8 +147,8 @@ static void __init eukrea_cpuimx25_init(void) if (!otg_mode_host) mxc_register_device(&otg_udc_device, &otg_device_pdata); -#ifdef CONFIG_MACH_EUKREA_MBIMXSD_BASEBOARD - eukrea_mbimxsd_baseboard_init(); +#ifdef CONFIG_MACH_EUKREA_MBIMXSD25_BASEBOARD + eukrea_mbimxsd25_baseboard_init(); #endif } diff --git a/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c b/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c index 1dc5004df866..f8f15e3ac7a0 100644 --- a/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c +++ b/arch/arm/mach-mx3/eukrea_mbimxsd-baseboard.c @@ -216,7 +216,7 @@ struct imx_ssi_platform_data eukrea_mbimxsd_ssi_pdata = { * Add platform devices present on this baseboard and init * them from CPU side as far as required to use them later on */ -void __init eukrea_mbimxsd_baseboard_init(void) +void __init eukrea_mbimxsd35_baseboard_init(void) { if (mxc_iomux_v3_setup_multiple_pads(eukrea_mbimxsd_pads, ARRAY_SIZE(eukrea_mbimxsd_pads))) diff --git a/arch/arm/mach-mx3/mach-cpuimx35.c b/arch/arm/mach-mx3/mach-cpuimx35.c index 63f970f340a2..e4268bbb8fbc 100644 --- a/arch/arm/mach-mx3/mach-cpuimx35.c +++ b/arch/arm/mach-mx3/mach-cpuimx35.c @@ -201,8 +201,8 @@ static void __init mxc_board_init(void) if (!otg_mode_host) mxc_register_device(&mxc_otg_udc_device, &otg_device_pdata); -#ifdef CONFIG_MACH_EUKREA_MBIMXSD_BASEBOARD - eukrea_mbimxsd_baseboard_init(); +#ifdef CONFIG_MACH_EUKREA_MBIMXSD35_BASEBOARD + eukrea_mbimxsd35_baseboard_init(); #endif } diff --git a/arch/arm/plat-mxc/include/mach/eukrea-baseboards.h b/arch/arm/plat-mxc/include/mach/eukrea-baseboards.h index 634e3f4c454d..656acb45d434 100644 --- a/arch/arm/plat-mxc/include/mach/eukrea-baseboards.h +++ b/arch/arm/plat-mxc/include/mach/eukrea-baseboards.h @@ -37,9 +37,9 @@ * mach-mx5/eukrea_mbimx51-baseboard.c for cpuimx51 */ -extern void eukrea_mbimx25_baseboard_init(void); +extern void eukrea_mbimxsd25_baseboard_init(void); extern void eukrea_mbimx27_baseboard_init(void); -extern void eukrea_mbimx35_baseboard_init(void); +extern void eukrea_mbimxsd35_baseboard_init(void); extern void eukrea_mbimx51_baseboard_init(void); #endif -- cgit v1.2.3 From 3d6e614952e3e4cf9e70e58893a740ffec220b24 Mon Sep 17 00:00:00 2001 From: Hans J. Koch Date: Thu, 12 Aug 2010 15:10:53 +0200 Subject: mx35: Fix boot ROM hang in internal boot mode If a watchdog reset occurs after booting in internal boot mode, the i.MX35 won't boot anymore. The boot ROM code seems to assume that some clocks are turned on (they are after a power-on reset). This patch turns on the necessary clocks. Signed-off-by: Hans J. Koch Acked-by: Uwe Kleine-König Reported-by: John Ogness Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/clock-imx35.c | 20 ++++++++++++++++---- 1 file changed, 16 insertions(+), 4 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c index d3af0fdf8475..32adf8d5b1f8 100644 --- a/arch/arm/mach-mx3/clock-imx35.c +++ b/arch/arm/mach-mx3/clock-imx35.c @@ -485,10 +485,10 @@ static struct clk_lookup lookups[] = { int __init mx35_clocks_init() { - unsigned int ll = 0; + unsigned int cgr2 = 3 << 26, cgr3 = 0; #if defined(CONFIG_DEBUG_LL) && !defined(CONFIG_DEBUG_ICEDCC) - ll = (3 << 16); + cgr2 |= 3 << 16; #endif clkdev_add_table(lookups, ARRAY_SIZE(lookups)); @@ -499,8 +499,20 @@ int __init mx35_clocks_init() __raw_writel((3 << 18), CCM_BASE + CCM_CGR0); __raw_writel((3 << 2) | (3 << 4) | (3 << 6) | (3 << 8) | (3 << 16), CCM_BASE + CCM_CGR1); - __raw_writel((3 << 26) | ll, CCM_BASE + CCM_CGR2); - __raw_writel(0, CCM_BASE + CCM_CGR3); + + /* + * Check if we came up in internal boot mode. If yes, we need some + * extra clocks turned on, otherwise the MX35 boot ROM code will + * hang after a watchdog reset. + */ + if (!(__raw_readl(CCM_BASE + CCM_RCSR) & (3 << 10))) { + /* Additionally turn on UART1, SCC, and IIM clocks */ + cgr2 |= 3 << 16 | 3 << 4; + cgr3 |= 3 << 2; + } + + __raw_writel(cgr2, CCM_BASE + CCM_CGR2); + __raw_writel(cgr3, CCM_BASE + CCM_CGR3); mxc_timer_init(&gpt_clk, MX35_IO_ADDRESS(MX35_GPT1_BASE_ADDR), MX35_INT_GPT); -- cgit v1.2.3 From 9a6f17fd1cd84811962735ff47111f84a8f05073 Mon Sep 17 00:00:00 2001 From: Sascha Hauer Date: Thu, 22 Apr 2010 12:37:13 +0200 Subject: i.MX35: remove get_3_3_div helper function In the v2 reference manual there are no dividers combined of two dividers. Instead, all dividers are simple 6bit dividers. I assume the combined dividers only exist in preliminary hardware. Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/clock-imx35.c | 24 +++++++++--------------- 1 file changed, 9 insertions(+), 15 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c index 32adf8d5b1f8..d3a8d3f32160 100644 --- a/arch/arm/mach-mx3/clock-imx35.c +++ b/arch/arm/mach-mx3/clock-imx35.c @@ -176,16 +176,11 @@ static unsigned long get_rate_ipg(struct clk *clk) return get_rate_ahb(NULL) >> 1; } -static unsigned long get_3_3_div(unsigned long in) -{ - return (((in >> 3) & 0x7) + 1) * ((in & 0x7) + 1); -} - static unsigned long get_rate_uart(struct clk *clk) { unsigned long pdr3 = __raw_readl(CCM_BASE + CCM_PDR3); unsigned long pdr4 = __raw_readl(CCM_BASE + CCM_PDR4); - unsigned long div = get_3_3_div(pdr4 >> 10); + unsigned long div = ((pdr4 >> 10) & 0x3f) + 1; if (pdr3 & (1 << 14)) return get_rate_arm() / div; @@ -216,7 +211,7 @@ static unsigned long get_rate_sdhc(struct clk *clk) break; } - return rate / get_3_3_div(div); + return rate / (div + 1); } static unsigned long get_rate_mshc(struct clk *clk) @@ -270,7 +265,7 @@ static unsigned long get_rate_csi(struct clk *clk) else rate = get_rate_ppll(); - return rate / get_3_3_div((pdr2 >> 16) & 0x3f); + return rate / (((pdr2 >> 16) & 0x3f) + 1); } static unsigned long get_rate_otg(struct clk *clk) @@ -283,22 +278,21 @@ static unsigned long get_rate_otg(struct clk *clk) else rate = get_rate_ppll(); - return rate / get_3_3_div((pdr4 >> 22) & 0x3f); + return rate / (((pdr4 >> 22) & 0x3f) + 1); } static unsigned long get_rate_ipg_per(struct clk *clk) { unsigned long pdr0 = __raw_readl(CCM_BASE + CCM_PDR0); unsigned long pdr4 = __raw_readl(CCM_BASE + CCM_PDR4); - unsigned long div1, div2; + unsigned long div; if (pdr0 & (1 << 26)) { - div1 = (pdr4 >> 19) & 0x7; - div2 = (pdr4 >> 16) & 0x7; - return get_rate_arm() / ((div1 + 1) * (div2 + 1)); + div = (pdr4 >> 16) & 0x3f; + return get_rate_arm() / (div + 1); } else { - div1 = (pdr0 >> 12) & 0x7; - return get_rate_ahb(NULL) / div1; + div = (pdr0 >> 12) & 0x7; + return get_rate_ahb(NULL) / div; } } -- cgit v1.2.3 From c96c1e394fa72bd995154af7143873945a3fa89d Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Mon, 16 Aug 2010 15:54:05 +0200 Subject: clock-imx35: fix divider if ahb is source for ipg_per According to the Datasheet: "i.MX35 (MCIMX35) Multimedia Applications Processor Reference Manual, Rev. 2" "Table 14-6. PDR0 Field Descriptions" the divider is CCM_PER_AHB[3:0] + 1. This patch adds the missing + 1. Signed-off-by: Marc Kleine-Budde Signed-off-by: Michael Grzeschik Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/clock-imx35.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c index d3a8d3f32160..e582ceb6e0c1 100644 --- a/arch/arm/mach-mx3/clock-imx35.c +++ b/arch/arm/mach-mx3/clock-imx35.c @@ -292,7 +292,7 @@ static unsigned long get_rate_ipg_per(struct clk *clk) return get_rate_arm() / (div + 1); } else { div = (pdr0 >> 12) & 0x7; - return get_rate_ahb(NULL) / div; + return get_rate_ahb(NULL) / (div + 1); } } -- cgit v1.2.3 From c56702de106b4fde301282f7ea60412276481442 Mon Sep 17 00:00:00 2001 From: Marc Kleine-Budde Date: Mon, 16 Aug 2010 15:54:06 +0200 Subject: clock-imx35: correct arm and ahb clock calculation According to the Datasheet: "i.MX35 (MCIMX35) Multimedia Applications Processor Reference Manual, Rev. 2" "Figure 14-24. Clock Control And Gating" change the result of get_rate_ahb based on the frequency returned by get_rate_arm to calculate the proper rate. Signed-off-by: Marc Kleine-Budde Signed-off-by: Michael Grzeschik Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/clock-imx35.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c index e582ceb6e0c1..1d311b77b40e 100644 --- a/arch/arm/mach-mx3/clock-imx35.c +++ b/arch/arm/mach-mx3/clock-imx35.c @@ -155,7 +155,7 @@ static unsigned long get_rate_arm(void) aad = &clk_consumer[(pdr0 >> 16) & 0xf]; if (aad->sel) - fref = fref * 2 / 3; + fref = fref * 3 / 4; return fref / aad->arm; } @@ -164,7 +164,7 @@ static unsigned long get_rate_ahb(struct clk *clk) { unsigned long pdr0 = __raw_readl(CCM_BASE + CCM_PDR0); struct arm_ahb_div *aad; - unsigned long fref = get_rate_mpll(); + unsigned long fref = get_rate_arm(); aad = &clk_consumer[(pdr0 >> 16) & 0xf]; -- cgit v1.2.3 From c735c40587cea45f9d2f83339f374595073c1923 Mon Sep 17 00:00:00 2001 From: Juergen Beisert Date: Mon, 16 Aug 2010 15:54:07 +0200 Subject: clock-imx35: Calculate the base clock rate for the IPU unit The mx3fb driver needs the clock the IPU runs in order to calculate the divider for the LCD clock. This patch adds the clock rate calculation routine for the i.MX35 CPU. Signed-off-by: Juergen Beisert Signed-off-by: Michael Grzeschik Signed-off-by: Sascha Hauer --- arch/arm/mach-mx3/clock-imx35.c | 29 ++++++++++++++++++++++++++++- 1 file changed, 28 insertions(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mx3/clock-imx35.c b/arch/arm/mach-mx3/clock-imx35.c index 1d311b77b40e..7a62e744a8b0 100644 --- a/arch/arm/mach-mx3/clock-imx35.c +++ b/arch/arm/mach-mx3/clock-imx35.c @@ -296,6 +296,33 @@ static unsigned long get_rate_ipg_per(struct clk *clk) } } +static unsigned long get_rate_hsp(struct clk *clk) +{ + unsigned long hsp_podf = (__raw_readl(CCM_BASE + CCM_PDR0) >> 20) & 0x03; + unsigned long fref = get_rate_mpll(); + + if (fref > 400 * 1000 * 1000) { + switch (hsp_podf) { + case 0: + return fref >> 2; + case 1: + return fref >> 3; + case 2: + return fref / 3; + } + } else { + switch (hsp_podf) { + case 0: + case 2: + return fref / 3; + case 1: + return fref / 6; + } + } + + return 0; +} + static int clk_cgr_enable(struct clk *clk) { u32 reg; @@ -353,7 +380,7 @@ DEFINE_CLOCK(i2c1_clk, 0, CCM_CGR1, 10, get_rate_ipg_per, NULL); DEFINE_CLOCK(i2c2_clk, 1, CCM_CGR1, 12, get_rate_ipg_per, NULL); DEFINE_CLOCK(i2c3_clk, 2, CCM_CGR1, 14, get_rate_ipg_per, NULL); DEFINE_CLOCK(iomuxc_clk, 0, CCM_CGR1, 16, NULL, NULL); -DEFINE_CLOCK(ipu_clk, 0, CCM_CGR1, 18, get_rate_ahb, NULL); +DEFINE_CLOCK(ipu_clk, 0, CCM_CGR1, 18, get_rate_hsp, NULL); DEFINE_CLOCK(kpp_clk, 0, CCM_CGR1, 20, get_rate_ipg, NULL); DEFINE_CLOCK(mlb_clk, 0, CCM_CGR1, 22, get_rate_ahb, NULL); DEFINE_CLOCK(mshc_clk, 0, CCM_CGR1, 24, get_rate_mshc, NULL); -- cgit v1.2.3 From a38b372fc2a3d8fe7ddbeab94d4c8bcb721f2403 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Sat, 21 Aug 2010 16:24:03 +0800 Subject: mxc/tzic: add base address when accessing TZIC registers When we call tzic_enable_wake function, the kernel will crash because of access to an unmapped address. This is because two register access operations forgot to add base address. Signed-off-by: Jason Wang Signed-off-by: Sascha Hauer --- arch/arm/plat-mxc/tzic.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) (limited to 'arch/arm') diff --git a/arch/arm/plat-mxc/tzic.c b/arch/arm/plat-mxc/tzic.c index b3da9aad4295..3703ab28257f 100644 --- a/arch/arm/plat-mxc/tzic.c +++ b/arch/arm/plat-mxc/tzic.c @@ -164,8 +164,9 @@ int tzic_enable_wake(int is_idle) return -EAGAIN; for (i = 0; i < 4; i++) { - v = is_idle ? __raw_readl(TZIC_ENSET0(i)) : wakeup_intr[i]; - __raw_writel(v, TZIC_WAKEUP0(i)); + v = is_idle ? __raw_readl(tzic_base + TZIC_ENSET0(i)) : + wakeup_intr[i]; + __raw_writel(v, tzic_base + TZIC_WAKEUP0(i)); } return 0; -- cgit v1.2.3 From 7f67bff58662604874778e6853e5c394f944e554 Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Sat, 21 Aug 2010 16:24:04 +0800 Subject: mx5/clock: fix clear bit fields issue in _clk_ccgr_disable function We can see MXC_CCM_CCGRx_MOD_OFF is defined as 0 while MXC_CCM_CCGRx_CG_MASK is defined as 0x3 in crm_regs.h, here in the _clk_ccgr_disable function, we want to clear the corresponding enable bit fields to disable this clock, so we should choose MASK instead of OFF otherwise clocks can't be disabled. Signed-off-by: Jason Wang Signed-off-by: Sascha Hauer --- arch/arm/mach-mx5/clock-mx51.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm') diff --git a/arch/arm/mach-mx5/clock-mx51.c b/arch/arm/mach-mx5/clock-mx51.c index 6af69def357f..57c10a9926cc 100644 --- a/arch/arm/mach-mx5/clock-mx51.c +++ b/arch/arm/mach-mx5/clock-mx51.c @@ -56,7 +56,7 @@ static void _clk_ccgr_disable(struct clk *clk) { u32 reg; reg = __raw_readl(clk->enable_reg); - reg &= ~(MXC_CCM_CCGRx_MOD_OFF << clk->enable_shift); + reg &= ~(MXC_CCM_CCGRx_CG_MASK << clk->enable_shift); __raw_writel(reg, clk->enable_reg); } -- cgit v1.2.3 From 14f0f512ba6f4eccc9b7cf67be47439ed2917afb Mon Sep 17 00:00:00 2001 From: Jason Wang Date: Sat, 21 Aug 2010 16:24:05 +0800 Subject: ARM: imx: set cache line size to 64 bytes for i.MX5 The core of i.MX5 series is cortex-A8, its cache line size is 64 bytes instead of 32 bytes. Refer to the OMAP3's selection, we choose 64 bytes for i.MX5, this can increase a little bit performance when perform cache operations. Signed-off-by: Jason Wang Signed-off-by: Sascha Hauer --- arch/arm/plat-mxc/Kconfig | 1 + 1 file changed, 1 insertion(+) (limited to 'arch/arm') diff --git a/arch/arm/plat-mxc/Kconfig b/arch/arm/plat-mxc/Kconfig index 0527e65318f4..6785db4179b8 100644 --- a/arch/arm/plat-mxc/Kconfig +++ b/arch/arm/plat-mxc/Kconfig @@ -43,6 +43,7 @@ config ARCH_MXC91231 config ARCH_MX5 bool "MX5-based" select CPU_V7 + select ARM_L1_CACHE_SHIFT_6 help This enables support for systems based on the Freescale i.MX51 family -- cgit v1.2.3