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 +++++++++++++++++++++++++++++- arch/arm/plat-omap/include/plat/control.h | 49 +++++++++- 2 files changed, 202 insertions(+), 4 deletions(-) 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 */ diff --git a/arch/arm/plat-omap/include/plat/control.h b/arch/arm/plat-omap/include/plat/control.h index 1076dd96739..8ca73471ba4 100644 --- a/arch/arm/plat-omap/include/plat/control.h +++ b/arch/arm/plat-omap/include/plat/control.h @@ -146,8 +146,51 @@ #define OMAP343X_CONTROL_TEST_KEY_13 (OMAP2_CONTROL_GENERAL + 0x00fc) #define OMAP343X_CONTROL_IVA2_BOOTADDR (OMAP2_CONTROL_GENERAL + 0x0190) #define OMAP343X_CONTROL_IVA2_BOOTMOD (OMAP2_CONTROL_GENERAL + 0x0194) -#define OMAP343X_CONTROL_PBIAS_LITE (OMAP2_CONTROL_GENERAL + 0x02b0) -#define OMAP343X_CONTROL_TEMP_SENSOR (OMAP2_CONTROL_GENERAL + 0x02b4) +#define OMAP343X_CONTROL_DEBOBS(i) (OMAP2_CONTROL_GENERAL + 0x01B0 \ + + ((i) >> 1) * 4 + (!(i) & 1) * 2) +#define OMAP343X_CONTROL_PROG_IO0 (OMAP2_CONTROL_GENERAL + 0x01D4) +#define OMAP343X_CONTROL_PROG_IO1 (OMAP2_CONTROL_GENERAL + 0x01D8) +#define OMAP343X_CONTROL_DSS_DPLL_SPREADING (OMAP2_CONTROL_GENERAL + 0x01E0) +#define OMAP343X_CONTROL_CORE_DPLL_SPREADING (OMAP2_CONTROL_GENERAL + 0x01E4) +#define OMAP343X_CONTROL_PER_DPLL_SPREADING (OMAP2_CONTROL_GENERAL + 0x01E8) +#define OMAP343X_CONTROL_USBHOST_DPLL_SPREADING (OMAP2_CONTROL_GENERAL + 0x01EC) +#define OMAP343X_CONTROL_PBIAS_LITE (OMAP2_CONTROL_GENERAL + 0x02B0) +#define OMAP343X_CONTROL_TEMP_SENSOR (OMAP2_CONTROL_GENERAL + 0x02B4) +#define OMAP343X_CONTROL_SRAMLDO4 (OMAP2_CONTROL_GENERAL + 0x02B8) +#define OMAP343X_CONTROL_SRAMLDO5 (OMAP2_CONTROL_GENERAL + 0x02C0) +#define OMAP343X_CONTROL_CSI (OMAP2_CONTROL_GENERAL + 0x02C4) + + +/* 34xx PADCONF register offsets */ +#define OMAP343X_PADCONF_ETK(i) (OMAP2_CONTROL_PADCONFS + 0x5a8 + \ + (i)*2) +#define OMAP343X_PADCONF_ETK_CLK OMAP343X_PADCONF_ETK(0) +#define OMAP343X_PADCONF_ETK_CTL OMAP343X_PADCONF_ETK(1) +#define OMAP343X_PADCONF_ETK_D0 OMAP343X_PADCONF_ETK(2) +#define OMAP343X_PADCONF_ETK_D1 OMAP343X_PADCONF_ETK(3) +#define OMAP343X_PADCONF_ETK_D2 OMAP343X_PADCONF_ETK(4) +#define OMAP343X_PADCONF_ETK_D3 OMAP343X_PADCONF_ETK(5) +#define OMAP343X_PADCONF_ETK_D4 OMAP343X_PADCONF_ETK(6) +#define OMAP343X_PADCONF_ETK_D5 OMAP343X_PADCONF_ETK(7) +#define OMAP343X_PADCONF_ETK_D6 OMAP343X_PADCONF_ETK(8) +#define OMAP343X_PADCONF_ETK_D7 OMAP343X_PADCONF_ETK(9) +#define OMAP343X_PADCONF_ETK_D8 OMAP343X_PADCONF_ETK(10) +#define OMAP343X_PADCONF_ETK_D9 OMAP343X_PADCONF_ETK(11) +#define OMAP343X_PADCONF_ETK_D10 OMAP343X_PADCONF_ETK(12) +#define OMAP343X_PADCONF_ETK_D11 OMAP343X_PADCONF_ETK(13) +#define OMAP343X_PADCONF_ETK_D12 OMAP343X_PADCONF_ETK(14) +#define OMAP343X_PADCONF_ETK_D13 OMAP343X_PADCONF_ETK(15) +#define OMAP343X_PADCONF_ETK_D14 OMAP343X_PADCONF_ETK(16) +#define OMAP343X_PADCONF_ETK_D15 OMAP343X_PADCONF_ETK(17) + +/* 34xx GENERAL_WKUP regist offsets */ +#define OMAP343X_CONTROL_WKUP_DEBOBSMUX(i) (OMAP343X_CONTROL_GENERAL_WKUP + \ + 0x008 + (i)) +#define OMAP343X_CONTROL_WKUP_DEBOBS0 (OMAP343X_CONTROL_GENERAL_WKUP + 0x008) +#define OMAP343X_CONTROL_WKUP_DEBOBS1 (OMAP343X_CONTROL_GENERAL_WKUP + 0x00C) +#define OMAP343X_CONTROL_WKUP_DEBOBS2 (OMAP343X_CONTROL_GENERAL_WKUP + 0x010) +#define OMAP343X_CONTROL_WKUP_DEBOBS3 (OMAP343X_CONTROL_GENERAL_WKUP + 0x014) +#define OMAP343X_CONTROL_WKUP_DEBOBS4 (OMAP343X_CONTROL_GENERAL_WKUP + 0x018) /* 34xx D2D idle-related pins, handled by PM core */ #define OMAP3_PADCONF_SAD2D_MSTANDBY 0x250 @@ -226,6 +269,8 @@ extern void omap3_save_scratchpad_contents(void); extern void omap3_clear_scratchpad_contents(void); extern u32 *get_restore_pointer(void); extern u32 omap3_arm_context[128]; +extern void omap3_control_save_context(void); +extern void omap3_control_restore_context(void); #else #define omap_ctrl_base_get() 0 -- cgit v1.2.3