From ce491cf85466c3377228c5a852ea627ec5136956 Mon Sep 17 00:00:00 2001 From: Tony Lindgren Date: Tue, 20 Oct 2009 09:40:47 -0700 Subject: omap: headers: Move remaining headers from include/mach to include/plat Move the remaining headers under plat-omap/include/mach to plat-omap/include/plat. Also search and replace the files using these headers to include using the right path. This was done with: #!/bin/bash mach_dir_old="arch/arm/plat-omap/include/mach" plat_dir_new="arch/arm/plat-omap/include/plat" headers=$(cd $mach_dir_old && ls *.h) omap_dirs="arch/arm/*omap*/ \ drivers/video/omap \ sound/soc/omap" other_files="drivers/leds/leds-ams-delta.c \ drivers/mfd/menelaus.c \ drivers/mfd/twl4030-core.c \ drivers/mtd/nand/ams-delta.c" for header in $headers; do old="#include --- arch/arm/mach-omap2/control.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-omap2/control.c') diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index 5f3aad97784..6adb360c6d4 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -15,8 +15,8 @@ #include #include -#include -#include +#include +#include static void __iomem *omap2_ctrl_base; -- cgit v1.2.2 From 8014078684377257e3a83ac45db95711929850c5 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Fri, 26 Sep 2008 17:48:46 +0530 Subject: OMAP3: PM: Populate scratchpad contents This patch populates the scratchpad contents as expected by the bootROM code. Signed-off-by: Rajendra Nayak Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/control.c | 203 ++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 203 insertions(+) (limited to 'arch/arm/mach-omap2/control.c') diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index 6adb360c6d4..03e1bce3b3b 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -17,9 +17,81 @@ #include #include +#include +#include "cm-regbits-34xx.h" +#include "prm-regbits-34xx.h" +#include "cm.h" +#include "prm.h" +#include "sdrc.h" static void __iomem *omap2_ctrl_base; +struct omap3_scratchpad { + u32 boot_config_ptr; + u32 public_restore_ptr; + u32 secure_ram_restore_ptr; + u32 sdrc_module_semaphore; + u32 prcm_block_offset; + u32 sdrc_block_offset; +}; + +struct omap3_scratchpad_prcm_block { + u32 prm_clksrc_ctrl; + u32 prm_clksel; + u32 cm_clksel_core; + u32 cm_clksel_wkup; + u32 cm_clken_pll; + u32 cm_autoidle_pll; + u32 cm_clksel1_pll; + u32 cm_clksel2_pll; + u32 cm_clksel3_pll; + u32 cm_clken_pll_mpu; + u32 cm_autoidle_pll_mpu; + u32 cm_clksel1_pll_mpu; + u32 cm_clksel2_pll_mpu; + u32 prcm_block_size; +}; + +struct omap3_scratchpad_sdrc_block { + u16 sysconfig; + u16 cs_cfg; + u16 sharing; + u16 err_type; + u32 dll_a_ctrl; + u32 dll_b_ctrl; + u32 power; + u32 cs_0; + u32 mcfg_0; + u16 mr_0; + u16 emr_1_0; + u16 emr_2_0; + u16 emr_3_0; + u32 actim_ctrla_0; + u32 actim_ctrlb_0; + u32 rfr_ctrl_0; + u32 cs_1; + u32 mcfg_1; + u16 mr_1; + u16 emr_1_1; + u16 emr_2_1; + u16 emr_3_1; + u32 actim_ctrla_1; + u32 actim_ctrlb_1; + u32 rfr_ctrl_1; + u16 dcdl_1_ctrl; + u16 dcdl_2_ctrl; + u32 flags; + u32 block_size; +}; + +/* + * This is used to store ARM registers in SDRAM before attempting + * an MPU OFF. The save and restore happens from the SRAM sleep code. + * The address is stored in scratchpad, so that it can be used + * during the restore path. + */ +u32 omap3_arm_context[128]; + #define OMAP_CTRL_REGADDR(reg) (omap2_ctrl_base + (reg)) void __init omap2_set_globals_control(struct omap_globals *omap2_globals) @@ -62,3 +134,134 @@ void omap_ctrl_writel(u32 val, u16 offset) __raw_writel(val, OMAP_CTRL_REGADDR(offset)); } +#ifdef CONFIG_ARCH_OMAP3 +/* + * Clears the scratchpad contents in case of cold boot- + * called during bootup + */ +void omap3_clear_scratchpad_contents(void) +{ + u32 max_offset = OMAP343X_SCRATCHPAD_ROM_OFFSET; + u32 *v_addr; + u32 offset = 0; + v_addr = OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD_ROM); + if (prm_read_mod_reg(OMAP3430_GR_MOD, OMAP3_PRM_RSTST_OFFSET) & + OMAP3430_GLOBAL_COLD_RST) { + for ( ; offset <= max_offset; offset += 0x4) + __raw_writel(0x0, (v_addr + offset)); + prm_set_mod_reg_bits(OMAP3430_GLOBAL_COLD_RST, OMAP3430_GR_MOD, + OMAP3_PRM_RSTST_OFFSET); + } +} + +/* Populate the scratchpad structure with restore structure */ +void omap3_save_scratchpad_contents(void) +{ + void * __iomem scratchpad_address; + u32 arm_context_addr; + struct omap3_scratchpad scratchpad_contents; + struct omap3_scratchpad_prcm_block prcm_block_contents; + struct omap3_scratchpad_sdrc_block sdrc_block_contents; + + /* Populate the Scratchpad contents */ + scratchpad_contents.boot_config_ptr = 0x0; + scratchpad_contents.public_restore_ptr = + virt_to_phys(get_restore_pointer()); + scratchpad_contents.secure_ram_restore_ptr = 0x0; + scratchpad_contents.sdrc_module_semaphore = 0x0; + scratchpad_contents.prcm_block_offset = 0x2C; + scratchpad_contents.sdrc_block_offset = 0x64; + + /* Populate the PRCM block contents */ + prcm_block_contents.prm_clksrc_ctrl = prm_read_mod_reg(OMAP3430_GR_MOD, + OMAP3_PRM_CLKSRC_CTRL_OFFSET); + prcm_block_contents.prm_clksel = prm_read_mod_reg(OMAP3430_CCR_MOD, + OMAP3_PRM_CLKSEL_OFFSET); + prcm_block_contents.cm_clksel_core = + cm_read_mod_reg(CORE_MOD, CM_CLKSEL); + prcm_block_contents.cm_clksel_wkup = + cm_read_mod_reg(WKUP_MOD, CM_CLKSEL); + prcm_block_contents.cm_clken_pll = + cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKEN_PLL); + prcm_block_contents.cm_autoidle_pll = + cm_read_mod_reg(PLL_MOD, OMAP3430_CM_AUTOIDLE_PLL); + prcm_block_contents.cm_clksel1_pll = + cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL1_PLL); + prcm_block_contents.cm_clksel2_pll = + cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL2_PLL); + prcm_block_contents.cm_clksel3_pll = + cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKSEL3); + prcm_block_contents.cm_clken_pll_mpu = + cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKEN_PLL); + prcm_block_contents.cm_autoidle_pll_mpu = + cm_read_mod_reg(MPU_MOD, OMAP3430_CM_AUTOIDLE_PLL); + prcm_block_contents.cm_clksel1_pll_mpu = + cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL1_PLL); + prcm_block_contents.cm_clksel2_pll_mpu = + cm_read_mod_reg(MPU_MOD, OMAP3430_CM_CLKSEL2_PLL); + prcm_block_contents.prcm_block_size = 0x0; + + /* Populate the SDRC block contents */ + sdrc_block_contents.sysconfig = + (sdrc_read_reg(SDRC_SYSCONFIG) & 0xFFFF); + sdrc_block_contents.cs_cfg = + (sdrc_read_reg(SDRC_CS_CFG) & 0xFFFF); + sdrc_block_contents.sharing = + (sdrc_read_reg(SDRC_SHARING) & 0xFFFF); + sdrc_block_contents.err_type = + (sdrc_read_reg(SDRC_ERR_TYPE) & 0xFFFF); + sdrc_block_contents.dll_a_ctrl = sdrc_read_reg(SDRC_DLLA_CTRL); + sdrc_block_contents.dll_b_ctrl = 0x0; + sdrc_block_contents.power = sdrc_read_reg(SDRC_POWER); + sdrc_block_contents.cs_0 = 0x0; + sdrc_block_contents.mcfg_0 = sdrc_read_reg(SDRC_MCFG_0); + sdrc_block_contents.mr_0 = (sdrc_read_reg(SDRC_MR_0) & 0xFFFF); + sdrc_block_contents.emr_1_0 = 0x0; + sdrc_block_contents.emr_2_0 = 0x0; + sdrc_block_contents.emr_3_0 = 0x0; + sdrc_block_contents.actim_ctrla_0 = + sdrc_read_reg(SDRC_ACTIM_CTRL_A_0); + sdrc_block_contents.actim_ctrlb_0 = + sdrc_read_reg(SDRC_ACTIM_CTRL_B_0); + sdrc_block_contents.rfr_ctrl_0 = + sdrc_read_reg(SDRC_RFR_CTRL_0); + sdrc_block_contents.cs_1 = 0x0; + sdrc_block_contents.mcfg_1 = sdrc_read_reg(SDRC_MCFG_1); + sdrc_block_contents.mr_1 = sdrc_read_reg(SDRC_MR_1) & 0xFFFF; + sdrc_block_contents.emr_1_1 = 0x0; + sdrc_block_contents.emr_2_1 = 0x0; + sdrc_block_contents.emr_3_1 = 0x0; + sdrc_block_contents.actim_ctrla_1 = + sdrc_read_reg(SDRC_ACTIM_CTRL_A_1); + sdrc_block_contents.actim_ctrlb_1 = + sdrc_read_reg(SDRC_ACTIM_CTRL_B_1); + sdrc_block_contents.rfr_ctrl_1 = + sdrc_read_reg(SDRC_RFR_CTRL_1); + sdrc_block_contents.dcdl_1_ctrl = 0x0; + sdrc_block_contents.dcdl_2_ctrl = 0x0; + sdrc_block_contents.flags = 0x0; + sdrc_block_contents.block_size = 0x0; + + arm_context_addr = virt_to_phys(omap3_arm_context); + + /* Copy all the contents to the scratchpad location */ + scratchpad_address = OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD); + memcpy_toio(scratchpad_address, &scratchpad_contents, + sizeof(scratchpad_contents)); + /* Scratchpad contents being 32 bits, a divide by 4 done here */ + memcpy_toio(scratchpad_address + + scratchpad_contents.prcm_block_offset, + &prcm_block_contents, sizeof(prcm_block_contents)); + memcpy_toio(scratchpad_address + + scratchpad_contents.sdrc_block_offset, + &sdrc_block_contents, sizeof(sdrc_block_contents)); + /* + * Copies the address of the location in SDRAM where ARM + * registers get saved during a MPU OFF transition. + */ + memcpy_toio(scratchpad_address + + scratchpad_contents.sdrc_block_offset + + sizeof(sdrc_block_contents), &arm_context_addr, 4); +} + +#endif /* CONFIG_ARCH_OMAP3 */ -- cgit v1.2.2 From c96631e13888e9be3a80aae291ed671d4d573ec9 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Fri, 26 Sep 2008 17:49:02 +0530 Subject: OMAP3: PM: SCM context save/restore Add context save and restore for the System Control Module to suport off-mode. ETK and debobs definitions added by Peter De Schrijver. Signed-off-by: Rajendra Nayak Signed-off-by: Peter 'p2' De Schrijver Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/control.c | 157 +++++++++++++++++++++++++++++++++++++++++- 1 file changed, 155 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-omap2/control.c') diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index 03e1bce3b3b..3ea417d7a1b 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -26,6 +26,7 @@ static void __iomem *omap2_ctrl_base; +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) struct omap3_scratchpad { u32 boot_config_ptr; u32 public_restore_ptr; @@ -92,6 +93,47 @@ struct omap3_scratchpad_sdrc_block { */ u32 omap3_arm_context[128]; +struct omap3_control_regs { + u32 sysconfig; + u32 devconf0; + u32 mem_dftrw0; + u32 mem_dftrw1; + u32 msuspendmux_0; + u32 msuspendmux_1; + u32 msuspendmux_2; + u32 msuspendmux_3; + u32 msuspendmux_4; + u32 msuspendmux_5; + u32 sec_ctrl; + u32 devconf1; + u32 csirxfe; + u32 iva2_bootaddr; + u32 iva2_bootmod; + u32 debobs_0; + u32 debobs_1; + u32 debobs_2; + u32 debobs_3; + u32 debobs_4; + u32 debobs_5; + u32 debobs_6; + u32 debobs_7; + u32 debobs_8; + u32 prog_io0; + u32 prog_io1; + u32 dss_dpll_spreading; + u32 core_dpll_spreading; + u32 per_dpll_spreading; + u32 usbhost_dpll_spreading; + u32 pbias_lite; + u32 temp_sensor; + u32 sramldo4; + u32 sramldo5; + u32 csi; +}; + +static struct omap3_control_regs control_context; +#endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */ + #define OMAP_CTRL_REGADDR(reg) (omap2_ctrl_base + (reg)) void __init omap2_set_globals_control(struct omap_globals *omap2_globals) @@ -134,7 +176,7 @@ void omap_ctrl_writel(u32 val, u16 offset) __raw_writel(val, OMAP_CTRL_REGADDR(offset)); } -#ifdef CONFIG_ARCH_OMAP3 +#if defined(CONFIG_ARCH_OMAP3) && defined(CONFIG_PM) /* * Clears the scratchpad contents in case of cold boot- * called during bootup @@ -264,4 +306,115 @@ void omap3_save_scratchpad_contents(void) sizeof(sdrc_block_contents), &arm_context_addr, 4); } -#endif /* CONFIG_ARCH_OMAP3 */ +void omap3_control_save_context(void) +{ + control_context.sysconfig = omap_ctrl_readl(OMAP2_CONTROL_SYSCONFIG); + control_context.devconf0 = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0); + control_context.mem_dftrw0 = + omap_ctrl_readl(OMAP343X_CONTROL_MEM_DFTRW0); + control_context.mem_dftrw1 = + omap_ctrl_readl(OMAP343X_CONTROL_MEM_DFTRW1); + control_context.msuspendmux_0 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_0); + control_context.msuspendmux_1 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_1); + control_context.msuspendmux_2 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_2); + control_context.msuspendmux_3 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_3); + control_context.msuspendmux_4 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_4); + control_context.msuspendmux_5 = + omap_ctrl_readl(OMAP2_CONTROL_MSUSPENDMUX_5); + control_context.sec_ctrl = omap_ctrl_readl(OMAP2_CONTROL_SEC_CTRL); + control_context.devconf1 = omap_ctrl_readl(OMAP343X_CONTROL_DEVCONF1); + control_context.csirxfe = omap_ctrl_readl(OMAP343X_CONTROL_CSIRXFE); + control_context.iva2_bootaddr = + omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTADDR); + control_context.iva2_bootmod = + omap_ctrl_readl(OMAP343X_CONTROL_IVA2_BOOTMOD); + control_context.debobs_0 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(0)); + control_context.debobs_1 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(1)); + control_context.debobs_2 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(2)); + control_context.debobs_3 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(3)); + control_context.debobs_4 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(4)); + control_context.debobs_5 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(5)); + control_context.debobs_6 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(6)); + control_context.debobs_7 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(7)); + control_context.debobs_8 = omap_ctrl_readl(OMAP343X_CONTROL_DEBOBS(8)); + control_context.prog_io0 = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO0); + control_context.prog_io1 = omap_ctrl_readl(OMAP343X_CONTROL_PROG_IO1); + control_context.dss_dpll_spreading = + omap_ctrl_readl(OMAP343X_CONTROL_DSS_DPLL_SPREADING); + control_context.core_dpll_spreading = + omap_ctrl_readl(OMAP343X_CONTROL_CORE_DPLL_SPREADING); + control_context.per_dpll_spreading = + omap_ctrl_readl(OMAP343X_CONTROL_PER_DPLL_SPREADING); + control_context.usbhost_dpll_spreading = + omap_ctrl_readl(OMAP343X_CONTROL_USBHOST_DPLL_SPREADING); + control_context.pbias_lite = + omap_ctrl_readl(OMAP343X_CONTROL_PBIAS_LITE); + control_context.temp_sensor = + omap_ctrl_readl(OMAP343X_CONTROL_TEMP_SENSOR); + control_context.sramldo4 = omap_ctrl_readl(OMAP343X_CONTROL_SRAMLDO4); + control_context.sramldo5 = omap_ctrl_readl(OMAP343X_CONTROL_SRAMLDO5); + control_context.csi = omap_ctrl_readl(OMAP343X_CONTROL_CSI); + return; +} + +void omap3_control_restore_context(void) +{ + omap_ctrl_writel(control_context.sysconfig, OMAP2_CONTROL_SYSCONFIG); + omap_ctrl_writel(control_context.devconf0, OMAP2_CONTROL_DEVCONF0); + omap_ctrl_writel(control_context.mem_dftrw0, + OMAP343X_CONTROL_MEM_DFTRW0); + omap_ctrl_writel(control_context.mem_dftrw1, + OMAP343X_CONTROL_MEM_DFTRW1); + omap_ctrl_writel(control_context.msuspendmux_0, + OMAP2_CONTROL_MSUSPENDMUX_0); + omap_ctrl_writel(control_context.msuspendmux_1, + OMAP2_CONTROL_MSUSPENDMUX_1); + omap_ctrl_writel(control_context.msuspendmux_2, + OMAP2_CONTROL_MSUSPENDMUX_2); + omap_ctrl_writel(control_context.msuspendmux_3, + OMAP2_CONTROL_MSUSPENDMUX_3); + omap_ctrl_writel(control_context.msuspendmux_4, + OMAP2_CONTROL_MSUSPENDMUX_4); + omap_ctrl_writel(control_context.msuspendmux_5, + OMAP2_CONTROL_MSUSPENDMUX_5); + omap_ctrl_writel(control_context.sec_ctrl, OMAP2_CONTROL_SEC_CTRL); + omap_ctrl_writel(control_context.devconf1, OMAP343X_CONTROL_DEVCONF1); + omap_ctrl_writel(control_context.csirxfe, OMAP343X_CONTROL_CSIRXFE); + omap_ctrl_writel(control_context.iva2_bootaddr, + OMAP343X_CONTROL_IVA2_BOOTADDR); + omap_ctrl_writel(control_context.iva2_bootmod, + OMAP343X_CONTROL_IVA2_BOOTMOD); + omap_ctrl_writel(control_context.debobs_0, OMAP343X_CONTROL_DEBOBS(0)); + omap_ctrl_writel(control_context.debobs_1, OMAP343X_CONTROL_DEBOBS(1)); + omap_ctrl_writel(control_context.debobs_2, OMAP343X_CONTROL_DEBOBS(2)); + omap_ctrl_writel(control_context.debobs_3, OMAP343X_CONTROL_DEBOBS(3)); + omap_ctrl_writel(control_context.debobs_4, OMAP343X_CONTROL_DEBOBS(4)); + omap_ctrl_writel(control_context.debobs_5, OMAP343X_CONTROL_DEBOBS(5)); + omap_ctrl_writel(control_context.debobs_6, OMAP343X_CONTROL_DEBOBS(6)); + omap_ctrl_writel(control_context.debobs_7, OMAP343X_CONTROL_DEBOBS(7)); + omap_ctrl_writel(control_context.debobs_8, OMAP343X_CONTROL_DEBOBS(8)); + omap_ctrl_writel(control_context.prog_io0, OMAP343X_CONTROL_PROG_IO0); + omap_ctrl_writel(control_context.prog_io1, OMAP343X_CONTROL_PROG_IO1); + omap_ctrl_writel(control_context.dss_dpll_spreading, + OMAP343X_CONTROL_DSS_DPLL_SPREADING); + omap_ctrl_writel(control_context.core_dpll_spreading, + OMAP343X_CONTROL_CORE_DPLL_SPREADING); + omap_ctrl_writel(control_context.per_dpll_spreading, + OMAP343X_CONTROL_PER_DPLL_SPREADING); + omap_ctrl_writel(control_context.usbhost_dpll_spreading, + OMAP343X_CONTROL_USBHOST_DPLL_SPREADING); + omap_ctrl_writel(control_context.pbias_lite, + OMAP343X_CONTROL_PBIAS_LITE); + omap_ctrl_writel(control_context.temp_sensor, + OMAP343X_CONTROL_TEMP_SENSOR); + omap_ctrl_writel(control_context.sramldo4, OMAP343X_CONTROL_SRAMLDO4); + omap_ctrl_writel(control_context.sramldo5, OMAP343X_CONTROL_SRAMLDO5); + omap_ctrl_writel(control_context.csi, OMAP343X_CONTROL_CSI); + return; +} +#endif /* CONFIG_ARCH_OMAP3 && CONFIG_PM */ -- cgit v1.2.2 From 27d59a4a2def42307349079f2e3538d96934c379 Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Mon, 13 Oct 2008 13:15:00 +0300 Subject: OMAP3 PM: off-mode support for HS/EMU devices For HS/EMU devices, some additional resources need to be saved/restored for off-mode support. Namely, saving the secure RAM and a pointer to it in the scratchpad. Signed-off-by: Tero Kristo Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/control.c | 8 +++++++- 1 file changed, 7 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-omap2/control.c') diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index 3ea417d7a1b..b84cff7087b 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -85,6 +85,8 @@ struct omap3_scratchpad_sdrc_block { u32 block_size; }; +void *omap3_secure_ram_storage; + /* * This is used to store ARM registers in SDRAM before attempting * an MPU OFF. The save and restore happens from the SRAM sleep code. @@ -209,7 +211,11 @@ void omap3_save_scratchpad_contents(void) scratchpad_contents.boot_config_ptr = 0x0; scratchpad_contents.public_restore_ptr = virt_to_phys(get_restore_pointer()); - scratchpad_contents.secure_ram_restore_ptr = 0x0; + if (omap_type() == OMAP2_DEVICE_TYPE_GP) + scratchpad_contents.secure_ram_restore_ptr = 0x0; + else + scratchpad_contents.secure_ram_restore_ptr = + (u32) __pa(omap3_secure_ram_storage); scratchpad_contents.sdrc_module_semaphore = 0x0; scratchpad_contents.prcm_block_offset = 0x2C; scratchpad_contents.sdrc_block_offset = 0x64; -- cgit v1.2.2 From cb0cb2b815bf073dc0211ab224682a6caf6c89ce Mon Sep 17 00:00:00 2001 From: Kalle Jokiniemi Date: Tue, 12 May 2009 14:02:16 +0300 Subject: OMAP3: PM: Fix PLL_MOD CLKEN offset in scratchpad The CM_CLKEN_PLL register saved in scratchpad memory was wrongly using offset of 0x0004 instead of 0x0000. The effect of this was that boot ROM code would restore the wrong value when waking up from off mode. This wrong value, however, will be overwritten by prcm context restore. Still, a short period of wrong clock settings in CM_CLKEN_PLL remained between ROM code and prcm context restore. This is fixed by the patch. Problem reported by: Jouni Hogander Signed-off-by: Kalle Jokiniemi Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/control.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'arch/arm/mach-omap2/control.c') diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index b84cff7087b..c41565ec16e 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -230,7 +230,7 @@ void omap3_save_scratchpad_contents(void) prcm_block_contents.cm_clksel_wkup = cm_read_mod_reg(WKUP_MOD, CM_CLKSEL); prcm_block_contents.cm_clken_pll = - cm_read_mod_reg(PLL_MOD, OMAP3430_CM_CLKEN_PLL); + cm_read_mod_reg(PLL_MOD, CM_CLKEN); prcm_block_contents.cm_autoidle_pll = cm_read_mod_reg(PLL_MOD, OMAP3430_CM_AUTOIDLE_PLL); prcm_block_contents.cm_clksel1_pll = -- cgit v1.2.2 From 0795a75a369b931150074a14473f024359b7f25c Mon Sep 17 00:00:00 2001 From: Tero Kristo Date: Mon, 13 Oct 2008 17:58:50 +0300 Subject: OMAP3: PM: SDRC auto-refresh workaround for off-mode Errata: ES3.0, ES3.1 SDRC not sending auto-refresh when OMAP wakes-up from OFF mode Signed-off-by: Tero Kristo Signed-off-by: Kalle Jokiniemi Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/control.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) (limited to 'arch/arm/mach-omap2/control.c') diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index c41565ec16e..2ff8d7cc60a 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -209,8 +209,13 @@ void omap3_save_scratchpad_contents(void) /* Populate the Scratchpad contents */ scratchpad_contents.boot_config_ptr = 0x0; - scratchpad_contents.public_restore_ptr = - virt_to_phys(get_restore_pointer()); + if (omap_rev() != OMAP3430_REV_ES3_0 && + omap_rev() != OMAP3430_REV_ES3_1) + scratchpad_contents.public_restore_ptr = + virt_to_phys(get_restore_pointer()); + else + scratchpad_contents.public_restore_ptr = + virt_to_phys(get_es3_restore_pointer()); if (omap_type() == OMAP2_DEVICE_TYPE_GP) scratchpad_contents.secure_ram_restore_ptr = 0x0; else -- cgit v1.2.2 From f265dc4c5d39f2bd369d97c87a7bd89061b159d4 Mon Sep 17 00:00:00 2001 From: Rajendra Nayak Date: Tue, 9 Jun 2009 22:30:41 +0530 Subject: OMAP3: PM: Program SDRC to send self refresh on timeout of AUTO_CNT Due to an OMAP3 errata (1.142), on HS/EMU devices SDRC should be programed to issue automatic self refresh on timeout of AUTO_CNT = 1 prior to any transition to OFF mode. This is needed only on sil rev's ES3.0 and above. This patch enables the above needed WA in the SDRC power register value stored in scratchpad, so that ROM code restores this value in SDRC POWER on the wakeup path. The original SDRC POWER register value is stored and restored back in omap_sram_idle() function. This fixes some random crashes observed while stressing suspend on HS/EMU devices. Signed-off-by: Rajendra Nayak Signed-off-by: Kalle Jokiniemi Signed-off-by: Kevin Hilman --- arch/arm/mach-omap2/control.c | 16 +++++++++++++++- 1 file changed, 15 insertions(+), 1 deletion(-) (limited to 'arch/arm/mach-omap2/control.c') diff --git a/arch/arm/mach-omap2/control.c b/arch/arm/mach-omap2/control.c index 2ff8d7cc60a..cdd1f35636d 100644 --- a/arch/arm/mach-omap2/control.c +++ b/arch/arm/mach-omap2/control.c @@ -265,7 +265,21 @@ void omap3_save_scratchpad_contents(void) (sdrc_read_reg(SDRC_ERR_TYPE) & 0xFFFF); sdrc_block_contents.dll_a_ctrl = sdrc_read_reg(SDRC_DLLA_CTRL); sdrc_block_contents.dll_b_ctrl = 0x0; - sdrc_block_contents.power = sdrc_read_reg(SDRC_POWER); + /* + * Due to a OMAP3 errata (1.142), on EMU/HS devices SRDC should + * be programed to issue automatic self refresh on timeout + * of AUTO_CNT = 1 prior to any transition to OFF mode. + */ + if ((omap_type() != OMAP2_DEVICE_TYPE_GP) + && (omap_rev() >= OMAP3430_REV_ES3_0)) + sdrc_block_contents.power = (sdrc_read_reg(SDRC_POWER) & + ~(SDRC_POWER_AUTOCOUNT_MASK| + SDRC_POWER_CLKCTRL_MASK)) | + (1 << SDRC_POWER_AUTOCOUNT_SHIFT) | + SDRC_SELF_REFRESH_ON_AUTOCOUNT; + else + sdrc_block_contents.power = sdrc_read_reg(SDRC_POWER); + sdrc_block_contents.cs_0 = 0x0; sdrc_block_contents.mcfg_0 = sdrc_read_reg(SDRC_MCFG_0); sdrc_block_contents.mr_0 = (sdrc_read_reg(SDRC_MR_0) & 0xFFFF); -- cgit v1.2.2