diff options
Diffstat (limited to 'arch/arm')
| -rw-r--r-- | arch/arm/mach-omap1/pm.h (renamed from arch/arm/plat-omap/include/mach/pm.h) | 0 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/Makefile | 4 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm-debug.c | 152 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm.c | 111 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm.h | 38 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm24xx.c | 548 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/pm34xx.c | 606 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/prcm-common.h | 2 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sdrc.c | 5 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sleep24xx.S | 1 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/sleep34xx.S | 436 | ||||
| -rw-r--r-- | arch/arm/mach-omap2/usb-musb.c | 1 | ||||
| -rw-r--r-- | arch/arm/plat-omap/Kconfig | 2 | ||||
| -rw-r--r-- | arch/arm/plat-omap/common.c | 1 |
14 files changed, 1790 insertions, 117 deletions
diff --git a/arch/arm/plat-omap/include/mach/pm.h b/arch/arm/mach-omap1/pm.h index ce6ee792753..ce6ee792753 100644 --- a/arch/arm/plat-omap/include/mach/pm.h +++ b/arch/arm/mach-omap1/pm.h diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index bf3827ae2c5..6fd1c1f7739 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -25,8 +25,10 @@ obj-$(CONFIG_ARCH_OMAP2) += sdrc2xxx.o # Power Management ifeq ($(CONFIG_PM),y) -obj-y += pm.o +obj-$(CONFIG_ARCH_OMAP2) += pm24xx.o obj-$(CONFIG_ARCH_OMAP24XX) += sleep24xx.o +obj-$(CONFIG_ARCH_OMAP3) += pm34xx.o sleep34xx.o +obj-$(CONFIG_PM_DEBUG) += pm-debug.o endif # Clock framework diff --git a/arch/arm/mach-omap2/pm-debug.c b/arch/arm/mach-omap2/pm-debug.c new file mode 100644 index 00000000000..6cc375a275b --- /dev/null +++ b/arch/arm/mach-omap2/pm-debug.c @@ -0,0 +1,152 @@ +/* + * OMAP Power Management debug routines + * + * Copyright (C) 2005 Texas Instruments, Inc. + * Copyright (C) 2006-2008 Nokia Corporation + * + * Written by: + * Richard Woodruff <r-woodruff2@ti.com> + * Tony Lindgren + * Juha Yrjola + * Amit Kucheria <amit.kucheria@nokia.com> + * Igor Stoppa <igor.stoppa@nokia.com> + * Jouni Hogander + * + * Based on pm.c for omap2 + * + * 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. + */ + +#include <linux/kernel.h> +#include <linux/timer.h> +#include <linux/clk.h> +#include <linux/err.h> +#include <linux/io.h> + +#include <mach/clock.h> +#include <mach/board.h> + +#include "prm.h" +#include "cm.h" +#include "pm.h" + +int omap2_pm_debug; + +#define DUMP_PRM_MOD_REG(mod, reg) \ + regs[reg_count].name = #mod "." #reg; \ + regs[reg_count++].val = prm_read_mod_reg(mod, reg) +#define DUMP_CM_MOD_REG(mod, reg) \ + regs[reg_count].name = #mod "." #reg; \ + regs[reg_count++].val = cm_read_mod_reg(mod, reg) +#define DUMP_PRM_REG(reg) \ + regs[reg_count].name = #reg; \ + regs[reg_count++].val = __raw_readl(reg) +#define DUMP_CM_REG(reg) \ + regs[reg_count].name = #reg; \ + regs[reg_count++].val = __raw_readl(reg) +#define DUMP_INTC_REG(reg, off) \ + regs[reg_count].name = #reg; \ + regs[reg_count++].val = __raw_readl(IO_ADDRESS(0x480fe000 + (off))) + +void omap2_pm_dump(int mode, int resume, unsigned int us) +{ + struct reg { + const char *name; + u32 val; + } regs[32]; + int reg_count = 0, i; + const char *s1 = NULL, *s2 = NULL; + + if (!resume) { +#if 0 + /* MPU */ + DUMP_PRM_MOD_REG(OCP_MOD, OMAP2_PRM_IRQENABLE_MPU_OFFSET); + DUMP_CM_MOD_REG(MPU_MOD, CM_CLKSTCTRL); + DUMP_PRM_MOD_REG(MPU_MOD, PM_PWSTCTRL); + DUMP_PRM_MOD_REG(MPU_MOD, PM_PWSTST); + DUMP_PRM_MOD_REG(MPU_MOD, PM_WKDEP); +#endif +#if 0 + /* INTC */ + DUMP_INTC_REG(INTC_MIR0, 0x0084); + DUMP_INTC_REG(INTC_MIR1, 0x00a4); + DUMP_INTC_REG(INTC_MIR2, 0x00c4); +#endif +#if 0 + DUMP_CM_MOD_REG(CORE_MOD, CM_FCLKEN1); + if (cpu_is_omap24xx()) { + DUMP_CM_MOD_REG(CORE_MOD, OMAP24XX_CM_FCLKEN2); + DUMP_PRM_MOD_REG(OMAP24XX_GR_MOD, + OMAP2_PRCM_CLKEMUL_CTRL_OFFSET); + DUMP_PRM_MOD_REG(OMAP24XX_GR_MOD, + OMAP2_PRCM_CLKSRC_CTRL_OFFSET); + } + DUMP_CM_MOD_REG(WKUP_MOD, CM_FCLKEN); + DUMP_CM_MOD_REG(CORE_MOD, CM_ICLKEN1); + DUMP_CM_MOD_REG(CORE_MOD, CM_ICLKEN2); + DUMP_CM_MOD_REG(WKUP_MOD, CM_ICLKEN); + DUMP_CM_MOD_REG(PLL_MOD, CM_CLKEN); + DUMP_CM_MOD_REG(PLL_MOD, CM_AUTOIDLE); + DUMP_PRM_MOD_REG(CORE_MOD, PM_PWSTST); +#endif +#if 0 + /* DSP */ + if (cpu_is_omap24xx()) { + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_FCLKEN); + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_ICLKEN); + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_IDLEST); + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_AUTOIDLE); + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_CLKSEL); + DUMP_CM_MOD_REG(OMAP24XX_DSP_MOD, CM_CLKSTCTRL); + DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, RM_RSTCTRL); + DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, RM_RSTST); + DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, PM_PWSTCTRL); + DUMP_PRM_MOD_REG(OMAP24XX_DSP_MOD, PM_PWSTST); + } +#endif + } else { + DUMP_PRM_MOD_REG(CORE_MOD, PM_WKST1); + if (cpu_is_omap24xx()) + DUMP_PRM_MOD_REG(CORE_MOD, OMAP24XX_PM_WKST2); + DUMP_PRM_MOD_REG(WKUP_MOD, PM_WKST); + DUMP_PRM_MOD_REG(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); +#if 1 + DUMP_INTC_REG(INTC_PENDING_IRQ0, 0x0098); + DUMP_INTC_REG(INTC_PENDING_IRQ1, 0x00b8); + DUMP_INTC_REG(INTC_PENDING_IRQ2, 0x00d8); +#endif + } + + switch (mode) { + case 0: + s1 = "full"; + s2 = "retention"; + break; + case 1: + s1 = "MPU"; + s2 = "retention"; + break; + case 2: + s1 = "MPU"; + s2 = "idle"; + break; + } + + if (!resume) +#ifdef CONFIG_NO_HZ + printk(KERN_INFO + "--- Going to %s %s (next timer after %u ms)\n", s1, s2, + jiffies_to_msecs(get_next_timer_interrupt(jiffies) - + jiffies)); +#else + printk(KERN_INFO "--- Going to %s %s\n", s1, s2); +#endif + else + printk(KERN_INFO "--- Woke up (slept for %u.%03u ms)\n", + us / 1000, us % 1000); + + for (i = 0; i < reg_count; i++) + printk(KERN_INFO "%-20s: 0x%08x\n", regs[i].name, regs[i].val); +} diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c deleted file mode 100644 index ea8ceaed09c..00000000000 --- a/arch/arm/mach-omap2/pm.c +++ /dev/null @@ -1,111 +0,0 @@ -/* - * linux/arch/arm/mach-omap2/pm.c - * - * OMAP2 Power Management Routines - * - * Copyright (C) 2006 Nokia Corporation - * Tony Lindgren <tony@atomide.com> - * - * Copyright (C) 2005 Texas Instruments, Inc. - * Richard Woodruff <r-woodruff2@ti.com> - * - * Based on pm.c for omap1 - * - * 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. - */ - -#include <linux/suspend.h> -#include <linux/sched.h> -#include <linux/proc_fs.h> -#include <linux/interrupt.h> -#include <linux/sysfs.h> -#include <linux/module.h> -#include <linux/delay.h> -#include <linux/clk.h> -#include <linux/io.h> - -#include <asm/irq.h> -#include <asm/atomic.h> -#include <asm/mach/time.h> -#include <asm/mach/irq.h> - -#include <mach/irqs.h> -#include <mach/clock.h> -#include <mach/sram.h> -#include <mach/pm.h> - -static struct clk *vclk; -static void (*omap2_sram_idle)(void); -static void (*omap2_sram_suspend)(int dllctrl, int cpu_rev); -static void (*saved_idle)(void); - -extern void __init pmdomain_init(void); -extern void pmdomain_set_autoidle(void); - -static unsigned int omap24xx_sleep_save[OMAP24XX_SLEEP_SAVE_SIZE]; - -void omap2_pm_idle(void) -{ - local_irq_disable(); - local_fiq_disable(); - if (need_resched()) { - local_fiq_enable(); - local_irq_enable(); - return; - } - - omap2_sram_idle(); - local_fiq_enable(); - local_irq_enable(); -} - -static int omap2_pm_prepare(void) -{ - /* We cannot sleep in idle until we have resumed */ - saved_idle = pm_idle; - pm_idle = NULL; - return 0; -} - -static int omap2_pm_suspend(void) -{ - return 0; -} - -static int omap2_pm_enter(suspend_state_t state) -{ - int ret = 0; - - switch (state) - { - case PM_SUSPEND_STANDBY: - case PM_SUSPEND_MEM: - ret = omap2_pm_suspend(); - break; - default: - ret = -EINVAL; - } - - return ret; -} - -static void omap2_pm_finish(void) -{ - pm_idle = saved_idle; -} - -static struct platform_suspend_ops omap_pm_ops = { - .prepare = omap2_pm_prepare, - .enter = omap2_pm_enter, - .finish = omap2_pm_finish, - .valid = suspend_valid_only_mem, -}; - -static int __init omap2_pm_init(void) -{ - return 0; -} - -__initcall(omap2_pm_init); diff --git a/arch/arm/mach-omap2/pm.h b/arch/arm/mach-omap2/pm.h new file mode 100644 index 00000000000..f7b3baf7667 --- /dev/null +++ b/arch/arm/mach-omap2/pm.h @@ -0,0 +1,38 @@ +/* + * OMAP2/3 Power Management Routines + * + * Copyright (C) 2008 Nokia Corporation + * Jouni Hogander + * + * 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. + */ +#ifndef __ARCH_ARM_MACH_OMAP2_PM_H +#define __ARCH_ARM_MACH_OMAP2_PM_H + +extern int omap2_pm_init(void); +extern int omap3_pm_init(void); + +#ifdef CONFIG_PM_DEBUG +extern void omap2_pm_dump(int mode, int resume, unsigned int us); +extern int omap2_pm_debug; +#else +#define omap2_pm_dump(mode, resume, us) do {} while (0); +#define omap2_pm_debug 0 +#endif /* CONFIG_PM_DEBUG */ + +extern void omap24xx_idle_loop_suspend(void); + +extern void omap24xx_cpu_suspend(u32 dll_ctrl, void __iomem *sdrc_dlla_ctrl, + void __iomem *sdrc_power); +extern void omap34xx_cpu_suspend(u32 *addr, int save_state); +extern void save_secure_ram_context(u32 *addr); + +extern unsigned int omap24xx_idle_loop_suspend_sz; +extern unsigned int omap34xx_suspend_sz; +extern unsigned int save_secure_ram_context_sz; +extern unsigned int omap24xx_cpu_suspend_sz; +extern unsigned int omap34xx_cpu_suspend_sz; + +#endif diff --git a/arch/arm/mach-omap2/pm24xx.c b/arch/arm/mach-omap2/pm24xx.c new file mode 100644 index 00000000000..232b9f6032e --- /dev/null +++ b/arch/arm/mach-omap2/pm24xx.c @@ -0,0 +1,548 @@ +/* + * OMAP2 Power Management Routines + * + * Copyright (C) 2005 Texas Instruments, Inc. + * Copyright (C) 2006-2008 Nokia Corporation + * + * Written by: + * Richard Woodruff <r-woodruff2@ti.com> + * Tony Lindgren + * Juha Yrjola + * Amit Kucheria <amit.kucheria@nokia.com> + * Igor Stoppa <igor.stoppa@nokia.com> + * + * Based on pm.c for omap1 + * + * 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. + */ + +#include <linux/suspend.h> +#include <linux/sched.h> +#include <linux/proc_fs.h> +#include <linux/interrupt.h> +#include <linux/sysfs.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/clk.h> +#include <linux/io.h> +#include <linux/irq.h> +#include <linux/time.h> +#include <linux/gpio.h> + +#include <asm/mach/time.h> +#include <asm/mach/irq.h> +#include <asm/mach-types.h> + +#include <mach/irqs.h> +#include <mach/clock.h> +#include <mach/sram.h> +#include <mach/control.h> +#include <mach/mux.h> +#include <mach/dma.h> +#include <mach/board.h> + +#include "prm.h" +#include "prm-regbits-24xx.h" +#include "cm.h" +#include "cm-regbits-24xx.h" +#include "sdrc.h" +#include "pm.h" + +#include <mach/powerdomain.h> +#include <mach/clockdomain.h> + +static void (*omap2_sram_idle)(void); +static void (*omap2_sram_suspend)(u32 dllctrl, void __iomem *sdrc_dlla_ctrl, + void __iomem *sdrc_power); + +static struct powerdomain *mpu_pwrdm; +static struct powerdomain *core_pwrdm; + +static struct clockdomain *dsp_clkdm; +static struct clockdomain *gfx_clkdm; + +static struct clk *osc_ck, *emul_ck; + +static int omap2_fclks_active(void) +{ + u32 f1, f2; + + f1 = cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + f2 = cm_read_mod_reg(CORE_MOD, OMAP24XX_CM_FCLKEN2); + if (f1 | f2) + return 1; + return 0; +} + +static int omap2_irq_pending(void) +{ + u32 pending_reg = 0x480fe098; + int i; + + for (i = 0; i < 4; i++) { + if (omap_readl(pending_reg)) + return 1; + pending_reg += 0x20; + } + return 0; +} + +static void omap2_enter_full_retention(void) +{ + u32 l; + struct timespec ts_preidle, ts_postidle, ts_idle; + + /* There is 1 reference hold for all children of the oscillator + * clock, the following will remove it. If no one else uses the + * oscillator itself it will be disabled if/when we enter retention + * mode. + */ + clk_disable(osc_ck); + + /* Clear old wake-up events */ + /* REVISIT: These write to reserved bits? */ + prm_write_mod_reg(0xffffffff, CORE_MOD, PM_WKST1); + prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2); + prm_write_mod_reg(0xffffffff, WKUP_MOD, PM_WKST); + + /* + * Set MPU powerdomain's next power state to RETENTION; + * preserve logic state during retention + */ + pwrdm_set_logic_retst(mpu_pwrdm, PWRDM_POWER_RET); + pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET); + + /* Workaround to kill USB */ + l = omap_ctrl_readl(OMAP2_CONTROL_DEVCONF0) | OMAP24XX_USBSTANDBYCTRL; + omap_ctrl_writel(l, OMAP2_CONTROL_DEVCONF0); + + omap2_gpio_prepare_for_retention(); + + if (omap2_pm_debug) { + omap2_pm_dump(0, 0, 0); + getnstimeofday(&ts_preidle); + } + + /* One last check for pending IRQs to avoid extra latency due + * to sleeping unnecessarily. */ + if (omap2_irq_pending()) + goto no_sleep; + + /* Jump to SRAM suspend code */ + omap2_sram_suspend(sdrc_read_reg(SDRC_DLLA_CTRL), + OMAP_SDRC_REGADDR(SDRC_DLLA_CTRL), + OMAP_SDRC_REGADDR(SDRC_POWER)); +no_sleep: + + if (omap2_pm_debug) { + unsigned long long tmp; + + getnstimeofday(&ts_postidle); + ts_idle = timespec_sub(ts_postidle, ts_preidle); + tmp = timespec_to_ns(&ts_idle) * NSEC_PER_USEC; + omap2_pm_dump(0, 1, tmp); + } + omap2_gpio_resume_after_retention(); + + clk_enable(osc_ck); + + /* clear CORE wake-up events */ + prm_write_mod_reg(0xffffffff, CORE_MOD, PM_WKST1); + prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2); + + /* wakeup domain events - bit 1: GPT1, bit5 GPIO */ + prm_clear_mod_reg_bits(0x4 | 0x1, WKUP_MOD, PM_WKST); + + /* MPU domain wake events */ + l = prm_read_mod_reg(OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); + if (l & 0x01) + prm_write_mod_reg(0x01, OCP_MOD, + OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); + if (l & 0x20) + prm_write_mod_reg(0x20, OCP_MOD, + OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); + + /* Mask future PRCM-to-MPU interrupts */ + prm_write_mod_reg(0x0, OCP_MOD, OMAP2_PRCM_IRQSTATUS_MPU_OFFSET); +} + +static int omap2_i2c_active(void) +{ + u32 l; + + l = cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + return l & (OMAP2420_EN_I2C2 | OMAP2420_EN_I2C1); +} + +static int sti_console_enabled; + +static int omap2_allow_mpu_retention(void) +{ + u32 l; + + /* Check for MMC, UART2, UART1, McSPI2, McSPI1 and DSS1. */ + l = cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + if (l & (OMAP2420_EN_MMC | OMAP24XX_EN_UART2 | + OMAP24XX_EN_UART1 | OMAP24XX_EN_MCSPI2 | + OMAP24XX_EN_MCSPI1 | OMAP24XX_EN_DSS1)) + return 0; + /* Check for UART3. */ + l = cm_read_mod_reg(CORE_MOD, OMAP24XX_CM_FCLKEN2); + if (l & OMAP24XX_EN_UART3) + return 0; + if (sti_console_enabled) + return 0; + + return 1; +} + +static void omap2_enter_mpu_retention(void) +{ + int only_idle = 0; + struct timespec ts_preidle, ts_postidle, ts_idle; + + /* Putting MPU into the WFI state while a transfer is active + * seems to cause the I2C block to timeout. Why? Good question. */ + if (omap2_i2c_active()) + return; + + /* The peripherals seem not to be able to wake up the MPU when + * it is in retention mode. */ + if (omap2_allow_mpu_retention()) { + /* REVISIT: These write to reserved bits? */ + prm_write_mod_reg(0xffffffff, CORE_MOD, PM_WKST1); + prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2); + prm_write_mod_reg(0xffffffff, WKUP_MOD, PM_WKST); + + /* Try to enter MPU retention */ + prm_write_mod_reg((0x01 << OMAP_POWERSTATE_SHIFT) | + OMAP_LOGICRETSTATE, + MPU_MOD, PM_PWSTCTRL); + } else { + /* Block MPU retention */ + + prm_write_mod_reg(OMAP_LOGICRETSTATE, MPU_MOD, PM_PWSTCTRL); + only_idle = 1; + } + + if (omap2_pm_debug) { + omap2_pm_dump(only_idle ? 2 : 1, 0, 0); + getnstimeofday(&ts_preidle); + } + + omap2_sram_idle(); + + if (omap2_pm_debug) { + unsigned long long tmp; + + getnstimeofday(&ts_postidle); + ts_idle = timespec_sub(ts_postidle, ts_preidle); + tmp = timespec_to_ns(&ts_idle) * NSEC_PER_USEC; + omap2_pm_dump(only_idle ? 2 : 1, 1, tmp); + } +} + +static int omap2_can_sleep(void) +{ + if (omap2_fclks_active()) + return 0; + if (osc_ck->usecount > 1) + return 0; + if (omap_dma_running()) + return 0; + + return 1; +} + +static void omap2_pm_idle(void) +{ + local_irq_disable(); + local_fiq_disable(); + + if (!omap2_can_sleep()) { + if (omap2_irq_pending()) + goto out; + omap2_enter_mpu_retention(); + goto out; + } + + if (omap2_irq_pending()) + goto out; + + omap2_enter_full_retention(); + +out: + local_fiq_enable(); + local_irq_enable(); +} + +static int omap2_pm_prepare(void) +{ + /* We cannot sleep in idle until we have resumed */ + disable_hlt(); + return 0; +} + +static int omap2_pm_suspend(void) +{ + u32 wken_wkup, mir1; + + wken_wkup = prm_read_mod_reg(WKUP_MOD, PM_WKEN); + prm_write_mod_reg(wken_wkup & ~OMAP24XX_EN_GPT1, WKUP_MOD, PM_WKEN); + + /* Mask GPT1 */ + mir1 = omap_readl(0x480fe0a4); + omap_writel(1 << 5, 0x480fe0ac); + + omap2_enter_full_retention(); + + omap_writel(mir1, 0x480fe0a4); + prm_write_mod_reg(wken_wkup, WKUP_MOD, PM_WKEN); + + return 0; +} + +static int omap2_pm_enter(suspend_state_t state) +{ + int ret = 0; + + switch (state) { + case PM_SUSPEND_STANDBY: + case PM_SUSPEND_MEM: + ret = omap2_pm_suspend(); + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static void omap2_pm_finish(void) +{ + enable_hlt(); +} + +static struct platform_suspend_ops omap_pm_ops = { + .prepare = omap2_pm_prepare, + .enter = omap2_pm_enter, + .finish = omap2_pm_finish, + .valid = suspend_valid_only_mem, +}; + +static int _pm_clkdm_enable_hwsup(struct clockdomain *clkdm) +{ + omap2_clkdm_allow_idle(clkdm); + return 0; +} + +static void __init prcm_setup_regs(void) +{ + int i, num_mem_banks; + struct powerdomain *pwrdm; + + /* Enable autoidle */ + prm_write_mod_reg(OMAP24XX_AUTOIDLE, OCP_MOD, + OMAP2_PRCM_SYSCONFIG_OFFSET); + + /* Set all domain wakeup dependencies */ + prm_write_mod_reg(OMAP_EN_WKUP_MASK, MPU_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP24XX_DSP_MOD, PM_WKDEP); + prm_write_mod_reg(0, GFX_MOD, PM_WKDEP); + prm_write_mod_reg(0, CORE_MOD, PM_WKDEP); + if (cpu_is_omap2430()) + prm_write_mod_reg(0, OMAP2430_MDM_MOD, PM_WKDEP); + + /* + * Set CORE powerdomain memory banks to retain their contents + * during RETENTION + */ + num_mem_banks = pwrdm_get_mem_bank_count(core_pwrdm); + for (i = 0; i < num_mem_banks; i++) + pwrdm_set_mem_retst(core_pwrdm, i, PWRDM_POWER_RET); + + /* Set CORE powerdomain's next power state to RETENTION */ + pwrdm_set_next_pwrst(core_pwrdm, PWRDM_POWER_RET); + + /* + * Set MPU powerdomain's next power state to RETENTION; + * preserve logic state during retention + */ + pwrdm_set_logic_retst(mpu_pwrdm, PWRDM_POWER_RET); + pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_RET); + + /* Force-power down DSP, GFX powerdomains */ + + pwrdm = clkdm_get_pwrdm(dsp_clkdm); + pwrdm_set_next_pwrst(pwrdm, PWRDM_POWER_OFF); + omap2_clkdm_sleep(dsp_clkdm); + + pwrdm = clkdm_get_pwrdm(gfx_clkdm); + pwrdm_set_next_pwrst(pwrdm, PWRDM_POWER_OFF); + omap2_clkdm_sleep(gfx_clkdm); + + /* Enable clockdomain hardware-supervised control for all clkdms */ + clkdm_for_each(_pm_clkdm_enable_hwsup); + + /* Enable clock autoidle for all domains */ + cm_write_mod_reg(OMAP24XX_AUTO_CAM | + OMAP24XX_AUTO_MAILBOXES | + OMAP24XX_AUTO_WDT4 | + OMAP2420_AUTO_WDT3 | + OMAP24XX_AUTO_MSPRO | + OMAP2420_AUTO_MMC | + OMAP24XX_AUTO_FAC | + OMAP2420_AUTO_EAC | + OMAP24XX_AUTO_HDQ | + OMAP24XX_AUTO_UART2 | + OMAP24XX_AUTO_UART1 | + OMAP24XX_AUTO_I2C2 | + OMAP24XX_AUTO_I2C1 | + OMAP24XX_AUTO_MCSPI2 | + OMAP24XX_AUTO_MCSPI1 | + OMAP24XX_AUTO_MCBSP2 | + OMAP24XX_AUTO_MCBSP1 | + OMAP24XX_AUTO_GPT12 | + OMAP24XX_AUTO_GPT11 | + OMAP24XX_AUTO_GPT10 | + OMAP24XX_AUTO_GPT9 | + OMAP24XX_AUTO_GPT8 | + OMAP24XX_AUTO_GPT7 | + OMAP24XX_AUTO_GPT6 | + OMAP24XX_AUTO_GPT5 | + OMAP24XX_AUTO_GPT4 | + OMAP24XX_AUTO_GPT3 | + OMAP24XX_AUTO_GPT2 | + OMAP2420_AUTO_VLYNQ | + OMAP24XX_AUTO_DSS, + CORE_MOD, CM_AUTOIDLE1); + cm_write_mod_reg(OMAP24XX_AUTO_UART3 | + OMAP24XX_AUTO_SSI | + OMAP24XX_AUTO_USB, + CORE_MOD, CM_AUTOIDLE2); + cm_write_mod_reg(OMAP24XX_AUTO_SDRC | + OMAP24XX_AUTO_GPMC | + OMAP24XX_AUTO_SDMA, + CORE_MOD, CM_AUTOIDLE3); + cm_write_mod_reg(OMAP24XX_AUTO_PKA | + OMAP24XX_AUTO_AES | + OMAP24XX_AUTO_RNG | + OMAP24XX_AUTO_SHA | + OMAP24XX_AUTO_DES, + CORE_MOD, OMAP24XX_CM_AUTOIDLE4); + + cm_write_mod_reg(OMAP2420_AUTO_DSP_IPI, OMAP24XX_DSP_MOD, CM_AUTOIDLE); + + /* Put DPLL and both APLLs into autoidle mode */ + cm_write_mod_reg((0x03 << OMAP24XX_AUTO_DPLL_SHIFT) | + (0x03 << OMAP24XX_AUTO_96M_SHIFT) | + (0x03 << OMAP24XX_AUTO_54M_SHIFT), + PLL_MOD, CM_AUTOIDLE); + + cm_write_mod_reg(OMAP24XX_AUTO_OMAPCTRL | + OMAP24XX_AUTO_WDT1 | + OMAP24XX_AUTO_MPU_WDT | + OMAP24XX_AUTO_GPIOS | + OMAP24XX_AUTO_32KSYNC | + OMAP24XX_AUTO_GPT1, + WKUP_MOD, CM_AUTOIDLE); + + /* REVISIT: Configure number of 32 kHz clock cycles for sys_clk + * stabilisation */ + prm_write_mod_reg(15 << OMAP_SETUP_TIME_SHIFT, OMAP24XX_GR_MOD, + OMAP2_PRCM_CLKSSETUP_OFFSET); + + /* Configure automatic voltage transition */ + prm_write_mod_reg(2 << OMAP_SETUP_TIME_SHIFT, OMAP24XX_GR_MOD, + OMAP2_PRCM_VOLTSETUP_OFFSET); + prm_write_mod_reg(OMAP24XX_AUTO_EXTVOLT | + (0x1 << OMAP24XX_SETOFF_LEVEL_SHIFT) | + OMAP24XX_MEMRETCTRL | + (0x1 << OMAP24XX_SETRET_LEVEL_SHIFT) | + (0x0 << OMAP24XX_VOLT_LEVEL_SHIFT), + OMAP24XX_GR_MOD, OMAP2_PRCM_VOLTCTRL_OFFSET); + + /* Enable wake-up events */ + prm_write_mod_reg(OMAP24XX_EN_GPIOS | OMAP24XX_EN_GPT1, + WKUP_MOD, PM_WKEN); +} + +int __init omap2_pm_init(void) +{ + u32 l; + + if (!cpu_is_omap24xx()) + return -ENODEV; + + printk(KERN_INFO "Power Management for OMAP2 initializing\n"); + l = prm_read_mod_reg(OCP_MOD, OMAP2_PRCM_REVISION_OFFSET); + printk(KERN_INFO "PRCM revision %d.%d\n", (l >> 4) & 0x0f, l & 0x0f); + + /* Look up important powerdomains, clockdomains */ + + mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); + if (!mpu_pwrdm) + pr_err("PM: mpu_pwrdm not found\n"); + + core_pwrdm = pwrdm_lookup("core_pwrdm"); + if (!core_pwrdm) + pr_err("PM: core_pwrdm not found\n"); + + dsp_clkdm = clkdm_lookup("dsp_clkdm"); + if (!dsp_clkdm) + pr_err("PM: mpu_clkdm not found\n"); + + gfx_clkdm = clkdm_lookup("gfx_clkdm"); + if (!gfx_clkdm) + pr_err("PM: gfx_clkdm not found\n"); + + + osc_ck = clk_get(NULL, "osc_ck"); + if (IS_ERR(osc_ck)) { + printk(KERN_ERR "could not get osc_ck\n"); + return -ENODEV; + } + + if (cpu_is_omap242x()) { + emul_ck = clk_get(NULL, "emul_ck"); + if (IS_ERR(emul_ck)) { + printk(KERN_ERR "could not get emul_ck\n"); + clk_put(osc_ck); + return -ENODEV; + } + } + + prcm_setup_regs(); + + /* Hack to prevent MPU retention when STI console is enabled. */ + { + const struct omap_sti_console_config *sti; + + sti = omap_get_config(OMAP_TAG_STI_CONSOLE, + struct omap_sti_console_config); + if (sti != NULL && sti->enable) + sti_console_enabled = 1; + } + + /* + * We copy the assembler sleep/wakeup routines to SRAM. + * These routines need to be in SRAM as that's the only + * memory the MPU can see when it wakes up. + */ + if (cpu_is_omap24xx()) { + omap2_sram_idle = omap_sram_push(omap24xx_idle_loop_suspend, + omap24xx_idle_loop_suspend_sz); + + omap2_sram_suspend = omap_sram_push(omap24xx_cpu_suspend, + omap24xx_cpu_suspend_sz); + } + + suspend_set_ops(&omap_pm_ops); + pm_idle = omap2_pm_idle; + + return 0; +} + +late_initcall(omap2_pm_init); diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c new file mode 100644 index 00000000000..4474947ddd6 --- /dev/null +++ b/arch/arm/mach-omap2/pm34xx.c @@ -0,0 +1,606 @@ +/* + * OMAP3 Power Management Routines + * + * Copyright (C) 2006-2008 Nokia Corporation + * Tony Lindgren <tony@atomide.com> + * Jouni Hogander + * + * Copyright (C) 2005 Texas Instruments, Inc. + * Richard Woodruff <r-woodruff2@ti.com> + * + * Based on pm.c for omap1 + * + * 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. + */ + +#include <linux/pm.h> +#include <linux/suspend.h> +#include <linux/interrupt.h> +#include <linux/module.h> +#include <linux/list.h> +#include <linux/err.h> +#include <linux/gpio.h> + +#include <mach/sram.h> +#include <mach/clockdomain.h> +#include <mach/powerdomain.h> +#include <mach/control.h> + +#include "cm.h" +#include "cm-regbits-34xx.h" +#include "prm-regbits-34xx.h" + +#include "prm.h" +#include "pm.h" + +struct power_state { + struct powerdomain *pwrdm; + u32 next_state; + u32 saved_state; + struct list_head node; +}; + +static LIST_HEAD(pwrst_list); + +static void (*_omap_sram_idle)(u32 *addr, int save_state); + +static struct powerdomain *mpu_pwrdm; + +/* PRCM Interrupt Handler for wakeups */ +static irqreturn_t prcm_interrupt_handler (int irq, void *dev_id) +{ + u32 wkst, irqstatus_mpu; + u32 fclk, iclk; + + /* WKUP */ + wkst = prm_read_mod_reg(WKUP_MOD, PM_WKST); + if (wkst) { + iclk = cm_read_mod_reg(WKUP_MOD, CM_ICLKEN); + fclk = cm_read_mod_reg(WKUP_MOD, CM_FCLKEN); + cm_set_mod_reg_bits(wkst, WKUP_MOD, CM_ICLKEN); + cm_set_mod_reg_bits(wkst, WKUP_MOD, CM_FCLKEN); + prm_write_mod_reg(wkst, WKUP_MOD, PM_WKST); + while (prm_read_mod_reg(WKUP_MOD, PM_WKST)) + cpu_relax(); + cm_write_mod_reg(iclk, WKUP_MOD, CM_ICLKEN); + cm_write_mod_reg(fclk, WKUP_MOD, CM_FCLKEN); + } + + /* CORE */ + wkst = prm_read_mod_reg(CORE_MOD, PM_WKST1); + if (wkst) { + iclk = cm_read_mod_reg(CORE_MOD, CM_ICLKEN1); + fclk = cm_read_mod_reg(CORE_MOD, CM_FCLKEN1); + cm_set_mod_reg_bits(wkst, CORE_MOD, CM_ICLKEN1); + cm_set_mod_reg_bits(wkst, CORE_MOD, CM_FCLKEN1); + prm_write_mod_reg(wkst, CORE_MOD, PM_WKST1); + while (prm_read_mod_reg(CORE_MOD, PM_WKST1)) + cpu_relax(); + cm_write_mod_reg(iclk, CORE_MOD, CM_ICLKEN1); + cm_write_mod_reg(fclk, CORE_MOD, CM_FCLKEN1); + } + wkst = prm_read_mod_reg(CORE_MOD, OMAP3430ES2_PM_WKST3); + if (wkst) { + iclk = cm_read_mod_reg(CORE_MOD, CM_ICLKEN3); + fclk = cm_read_mod_reg(CORE_MOD, OMAP3430ES2_CM_FCLKEN3); + cm_set_mod_reg_bits(wkst, CORE_MOD, CM_ICLKEN3); + cm_set_mod_reg_bits(wkst, CORE_MOD, OMAP3430ES2_CM_FCLKEN3); + prm_write_mod_reg(wkst, CORE_MOD, OMAP3430ES2_PM_WKST3); + while (prm_read_mod_reg(CORE_MOD, OMAP3430ES2_PM_WKST3)) + cpu_relax(); + cm_write_mod_reg(iclk, CORE_MOD, CM_ICLKEN3); + cm_write_mod_reg(fclk, CORE_MOD, OMAP3430ES2_CM_FCLKEN3); + } + + /* PER */ + wkst = prm_read_mod_reg(OMAP3430_PER_MOD, PM_WKST); + if (wkst) { + iclk = cm_read_mod_reg(OMAP3430_PER_MOD, CM_ICLKEN); + fclk = cm_read_mod_reg(OMAP3430_PER_MOD, CM_FCLKEN); + cm_set_mod_reg_bits(wkst, OMAP3430_PER_MOD, CM_ICLKEN); + cm_set_mod_reg_bits(wkst, OMAP3430_PER_MOD, CM_FCLKEN); + prm_write_mod_reg(wkst, OMAP3430_PER_MOD, PM_WKST); + while (prm_read_mod_reg(OMAP3430_PER_MOD, PM_WKST)) + cpu_relax(); + cm_write_mod_reg(iclk, OMAP3430_PER_MOD, CM_ICLKEN); + cm_write_mod_reg(fclk, OMAP3430_PER_MOD, CM_FCLKEN); + } + + if (omap_rev() > OMAP3430_REV_ES1_0) { + /* USBHOST */ + wkst = prm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, PM_WKST); + if (wkst) { + iclk = cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + CM_ICLKEN); + fclk = cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + CM_FCLKEN); + cm_set_mod_reg_bits(wkst, OMAP3430ES2_USBHOST_MOD, + CM_ICLKEN); + cm_set_mod_reg_bits(wkst, OMAP3430ES2_USBHOST_MOD, + CM_FCLKEN); + prm_write_mod_reg(wkst, OMAP3430ES2_USBHOST_MOD, + PM_WKST); + while (prm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + PM_WKST)) + cpu_relax(); + cm_write_mod_reg(iclk, OMAP3430ES2_USBHOST_MOD, + CM_ICLKEN); + cm_write_mod_reg(fclk, OMAP3430ES2_USBHOST_MOD, + CM_FCLKEN); + } + } + + irqstatus_mpu = prm_read_mod_reg(OCP_MOD, + OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + prm_write_mod_reg(irqstatus_mpu, OCP_MOD, + OMAP3_PRM_IRQSTATUS_MPU_OFFSET); + + while (prm_read_mod_reg(OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET)) + cpu_relax(); + + return IRQ_HANDLED; +} + +static void omap_sram_idle(void) +{ + /* Variable to tell what needs to be saved and restored + * in omap_sram_idle*/ + /* save_state = 0 => Nothing to save and restored */ + /* save_state = 1 => Only L1 and logic lost */ + /* save_state = 2 => Only L2 lost */ + /* save_state = 3 => L1, L2 and logic lost */ + int save_state = 0, mpu_next_state; + + if (!_omap_sram_idle) + return; + + mpu_next_state = pwrdm_read_next_pwrst(mpu_pwrdm); + switch (mpu_next_state) { + case PWRDM_POWER_RET: + /* No need to save context */ + save_state = 0; + break; + default: + /* Invalid state */ + printk(KERN_ERR "Invalid mpu state in sram_idle\n"); + return; + } + omap2_gpio_prepare_for_retention(); + + _omap_sram_idle(NULL, save_state); + cpu_init(); + + omap2_gpio_resume_after_retention(); +} + +/* + * Check if functional clocks are enabled before entering + * sleep. This function could be behind CONFIG_PM_DEBUG + * when all drivers are configuring their sysconfig registers + * properly and using their clocks properly. + */ +static int omap3_fclks_active(void) +{ + u32 fck_core1 = 0, fck_core3 = 0, fck_sgx = 0, fck_dss = 0, + fck_cam = 0, fck_per = 0, fck_usbhost = 0; + + fck_core1 = cm_read_mod_reg(CORE_MOD, + CM_FCLKEN1); + if (omap_rev() > OMAP3430_REV_ES1_0) { + fck_core3 = cm_read_mod_reg(CORE_MOD, + OMAP3430ES2_CM_FCLKEN3); + fck_sgx = cm_read_mod_reg(OMAP3430ES2_SGX_MOD, + CM_FCLKEN); + fck_usbhost = cm_read_mod_reg(OMAP3430ES2_USBHOST_MOD, + CM_FCLKEN); + } else + fck_sgx = cm_read_mod_reg(GFX_MOD, + OMAP3430ES2_CM_FCLKEN3); + fck_dss = cm_read_mod_reg(OMAP3430_DSS_MOD, + CM_FCLKEN); + fck_cam = cm_read_mod_reg(OMAP3430_CAM_MOD, + CM_FCLKEN); + fck_per = cm_read_mod_reg(OMAP3430_PER_MOD, + CM_FCLKEN); + if (fck_core1 | fck_core3 | fck_sgx | fck_dss | + fck_cam | fck_per | fck_usbhost) + return 1; + return 0; +} + +static int omap3_can_sleep(void) +{ + if (omap3_fclks_active()) + return 0; + return 1; +} + +/* This sets pwrdm state (other than mpu & core. Currently only ON & + * RET are supported. Function is assuming that clkdm doesn't have + * hw_sup mode enabled. */ +static int set_pwrdm_state(struct powerdomain *pwrdm, u32 state) +{ + u32 cur_state; + int sleep_switch = 0; + int ret = 0; + + if (pwrdm == NULL || IS_ERR(pwrdm)) + return -EINVAL; + + while (!(pwrdm->pwrsts & (1 << state))) { + if (state == PWRDM_POWER_OFF) + return ret; + state--; + } + + cur_state = pwrdm_read_next_pwrst(pwrdm); + if (cur_state == state) + return ret; + + if (pwrdm_read_pwrst(pwrdm) < PWRDM_POWER_ON) { + omap2_clkdm_wakeup(pwrdm->pwrdm_clkdms[0]); + sleep_switch = 1; + pwrdm_wait_transition(pwrdm); + } + + ret = pwrdm_set_next_pwrst(pwrdm, state); + if (ret) { + printk(KERN_ERR "Unable to set state of powerdomain: %s\n", + pwrdm->name); + goto err; + } + + if (sleep_switch) { + omap2_clkdm_allow_idle(pwrdm->pwrdm_clkdms[0]); + pwrdm_wait_transition(pwrdm); + } + +err: + return ret; +} + +static void omap3_pm_idle(void) +{ + local_irq_disable(); + local_fiq_disable(); + + if (!omap3_can_sleep()) + goto out; + + if (omap_irq_pending()) + goto out; + + omap_sram_idle(); + +out: + local_fiq_enable(); + local_irq_enable(); +} + +static int omap3_pm_prepare(void) +{ + disable_hlt(); + return 0; +} + +static int omap3_pm_suspend(void) +{ + struct power_state *pwrst; + int state, ret = 0; + + /* Read current next_pwrsts */ + list_for_each_entry(pwrst, &pwrst_list, node) + pwrst->saved_state = pwrdm_read_next_pwrst(pwrst->pwrdm); + /* Set ones wanted by suspend */ + list_for_each_entry(pwrst, &pwrst_list, node) { + if (set_pwrdm_state(pwrst->pwrdm, pwrst->next_state)) + goto restore; + if (pwrdm_clear_all_prev_pwrst(pwrst->pwrdm)) + goto restore; + } + + omap_sram_idle(); + +restore: + /* Restore next_pwrsts */ + list_for_each_entry(pwrst, &pwrst_list, node) { + set_pwrdm_state(pwrst->pwrdm, pwrst->saved_state); + state = pwrdm_read_prev_pwrst(pwrst->pwrdm); + if (state > pwrst->next_state) { + printk(KERN_INFO "Powerdomain (%s) didn't enter " + "target state %d\n", + pwrst->pwrdm->name, pwrst->next_state); + ret = -1; + } + } + if (ret) + printk(KERN_ERR "Could not enter target state in pm_suspend\n"); + else + printk(KERN_INFO "Successfully put all powerdomains " + "to target state\n"); + + return ret; +} + +static int omap3_pm_enter(suspend_state_t state) +{ + int ret = 0; + + switch (state) { + case PM_SUSPEND_STANDBY: + case PM_SUSPEND_MEM: + ret = omap3_pm_suspend(); + break; + default: + ret = -EINVAL; + } + + return ret; +} + +static void omap3_pm_finish(void) +{ + enable_hlt(); +} + +static struct platform_suspend_ops omap_pm_ops = { + .prepare = omap3_pm_prepare, + .enter = omap3_pm_enter, + .finish = omap3_pm_finish, + .valid = suspend_valid_only_mem, +}; + +static void __init prcm_setup_regs(void) +{ + /* reset modem */ + prm_write_mod_reg(OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RSTPWRON | + OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RST, + CORE_MOD, RM_RSTCTRL); + prm_write_mod_reg(0, CORE_MOD, RM_RSTCTRL); + + /* XXX Reset all wkdeps. This should be done when initializing + * powerdomains */ + prm_write_mod_reg(0, OMAP3430_IVA2_MOD, PM_WKDEP); + prm_write_mod_reg(0, MPU_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP3430_DSS_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP3430_NEON_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP3430_CAM_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP3430_PER_MOD, PM_WKDEP); + if (omap_rev() > OMAP3430_REV_ES1_0) { + prm_write_mod_reg(0, OMAP3430ES2_SGX_MOD, PM_WKDEP); + prm_write_mod_reg(0, OMAP3430ES2_USBHOST_MOD, PM_WKDEP); + } else + prm_write_mod_reg(0, GFX_MOD, PM_WKDEP); + + /* + * Enable interface clock autoidle for all modules. + * Note that in the long run this should be done by clockfw + */ + cm_write_mod_reg( + OMAP3430ES2_AUTO_MMC3 | + OMAP3430ES2_AUTO_ICR | + OMAP3430_AUTO_AES2 | + OMAP3430_AUTO_SHA12 | + OMAP3430_AUTO_DES2 | + OMAP3430_AUTO_MMC2 | + OMAP3430_AUTO_MMC1 | + OMAP3430_AUTO_MSPRO | + OMAP3430_AUTO_HDQ | + OMAP3430_AUTO_MCSPI4 | + OMAP3430_AUTO_MCSPI3 | + OMAP3430_AUTO_MCSPI2 | + OMAP3430_AUTO_MCSPI1 | + OMAP3430_AUTO_I2C3 | + OMAP3430_AUTO_I2C2 | + OMAP3430_AUTO_I2C1 | + OMAP3430_AUTO_UART2 | + OMAP3430_AUTO_UART1 | + OMAP3430_AUTO_GPT11 | + OMAP3430_AUTO_GPT10 | + OMAP3430_AUTO_MCBSP5 | + OMAP3430_AUTO_MCBSP1 | + OMAP3430ES1_AUTO_FAC | /* This is es1 only */ + OMAP3430_AUTO_MAILBOXES | + OMAP3430_AUTO_OMAPCTRL | + OMAP3430ES1_AUTO_FSHOSTUSB | + OMAP3430_AUTO_HSOTGUSB | + OMAP3430ES1_AUTO_D2D | /* This is es1 only */ + OMAP3430_AUTO_SSI, + CORE_MOD, CM_AUTOIDLE1); + + cm_write_mod_reg( + OMAP3430_AUTO_PKA | + OMAP3430_AUTO_AES1 | + OMAP3430_AUTO_RNG | + OMAP3430_AUTO_SHA11 | + OMAP3430_AUTO_DES1, + CORE_MOD, CM_AUTOIDLE2); + + if (omap_rev() > OMAP3430_REV_ES1_0) { + cm_write_mod_reg( + OMAP3430ES2_AUTO_USBTLL, + CORE_MOD, CM_AUTOIDLE3); + } + + cm_write_mod_reg( + OMAP3430_AUTO_WDT2 | + OMAP3430_AUTO_WDT1 | + OMAP3430_AUTO_GPIO1 | + OMAP3430_AUTO_32KSYNC | + OMAP3430_AUTO_GPT12 | + OMAP3430_AUTO_GPT1 , + WKUP_MOD, CM_AUTOIDLE); + + cm_write_mod_reg( + OMAP3430_AUTO_DSS, + OMAP3430_DSS_MOD, + CM_AUTOIDLE); + + cm_write_mod_reg( + OMAP3430_AUTO_CAM, + OMAP3430_CAM_MOD, + CM_AUTOIDLE); + + cm_write_mod_reg( + OMAP3430_AUTO_GPIO6 | + OMAP3430_AUTO_GPIO5 | + OMAP3430_AUTO_GPIO4 | + OMAP3430_AUTO_GPIO3 | + OMAP3430_AUTO_GPIO2 | + OMAP3430_AUTO_WDT3 | + OMAP3430_AUTO_UART3 | + OMAP3430_AUTO_GPT9 | + OMAP3430_AUTO_GPT8 | + OMAP3430_AUTO_GPT7 | + OMAP3430_AUTO_GPT6 | + OMAP3430_AUTO_GPT5 | + OMAP3430_AUTO_GPT4 | + OMAP3430_AUTO_GPT3 | + OMAP3430_AUTO_GPT2 | + OMAP3430_AUTO_MCBSP4 | + OMAP3430_AUTO_MCBSP3 | + OMAP3430_AUTO_MCBSP2, + OMAP3430_PER_MOD, + CM_AUTOIDLE); + + if (omap_rev() > OMAP3430_REV_ES1_0) { + cm_write_mod_reg( + OMAP3430ES2_AUTO_USBHOST, + OMAP3430ES2_USBHOST_MOD, + CM_AUTOIDLE); + } + + /* + * Set all plls to autoidle. This is needed until autoidle is + * enabled by clockfw + */ + cm_write_mod_reg(1 << OMAP3430_AUTO_IVA2_DPLL_SHIFT, + OMAP3430_IVA2_MOD, CM_AUTOIDLE2); + cm_write_mod_reg(1 << OMAP3430_AUTO_MPU_DPLL_SHIFT, + MPU_MOD, + CM_AUTOIDLE2); + cm_write_mod_reg((1 << OMAP3430_AUTO_PERIPH_DPLL_SHIFT) | + (1 << OMAP3430_AUTO_CORE_DPLL_SHIFT), + PLL_MOD, + CM_AUTOIDLE); + cm_write_mod_reg(1 << OMAP3430ES2_AUTO_PERIPH2_DPLL_SHIFT, + PLL_MOD, + CM_AUTOIDLE2); + + /* + * Enable control of expternal oscillator through + * sys_clkreq. In the long run clock framework should + * take care of this. + */ + prm_rmw_mod_reg_bits(OMAP_AUTOEXTCLKMODE_MASK, + 1 << OMAP_AUTOEXTCLKMODE_SHIFT, + OMAP3430_GR_MOD, + OMAP3_PRM_CLKSRC_CTRL_OFFSET); + + /* setup wakup source */ + prm_write_mod_reg(OMAP3430_EN_IO | OMAP3430_EN_GPIO1 | + OMAP3430_EN_GPT1 | OMAP3430_EN_GPT12, + WKUP_MOD, PM_WKEN); + /* No need to write EN_IO, that is always enabled */ + prm_write_mod_reg(OMAP3430_EN_GPIO1 | OMAP3430_EN_GPT1 | + OMAP3430_EN_GPT12, + WKUP_MOD, OMAP3430_PM_MPUGRPSEL); + /* For some reason IO doesn't generate wakeup event even if + * it is selected to mpu wakeup goup */ + prm_write_mod_reg(OMAP3430_IO_EN | OMAP3430_WKUP_EN, + OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET); +} + +static int __init pwrdms_setup(struct powerdomain *pwrdm) +{ + struct power_state *pwrst; + + if (!pwrdm->pwrsts) + return 0; + + pwrst = kmalloc(sizeof(struct power_state), GFP_KERNEL); + if (!pwrst) + return -ENOMEM; + pwrst->pwrdm = pwrdm; + pwrst->next_state = PWRDM_POWER_RET; + list_add(&pwrst->node, &pwrst_list); + + if (pwrdm_has_hdwr_sar(pwrdm)) + pwrdm_enable_hdwr_sar(pwrdm); + + return set_pwrdm_state(pwrst->pwrdm, pwrst->next_state); +} + +/* + * Enable hw supervised mode for all clockdomains if it's + * supported. Initiate sleep transition for other clockdomains, if + * they are not used + */ +static int __init clkdms_setup(struct clockdomain *clkdm) +{ + if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO) + omap2_clkdm_allow_idle(clkdm); + else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP && + atomic_read(&clkdm->usecount) == 0) + omap2_clkdm_sleep(clkdm); + return 0; +} + +int __init omap3_pm_init(void) +{ + struct power_state *pwrst, *tmp; + int ret; + + if (!cpu_is_omap34xx()) + return -ENODEV; + + printk(KERN_ERR "Power Management for TI OMAP3.\n"); + + /* XXX prcm_setup_regs needs to be before enabling hw + * supervised mode for powerdomains */ + prcm_setup_regs(); + + ret = request_irq(INT_34XX_PRCM_MPU_IRQ, + (irq_handler_t)prcm_interrupt_handler, + IRQF_DISABLED, "prcm", NULL); + if (ret) { + printk(KERN_ERR "request_irq failed to register for 0x%x\n", + INT_34XX_PRCM_MPU_IRQ); + goto err1; + } + + ret = pwrdm_for_each(pwrdms_setup); + if (ret) { + printk(KERN_ERR "Failed to setup powerdomains\n"); + goto err2; + } + + (void) clkdm_for_each(clkdms_setup); + + mpu_pwrdm = pwrdm_lookup("mpu_pwrdm"); + if (mpu_pwrdm == NULL) { + printk(KERN_ERR "Failed to get mpu_pwrdm\n"); + goto err2; + } + + _omap_sram_idle = omap_sram_push(omap34xx_cpu_suspend, + omap34xx_cpu_suspend_sz); + + suspend_set_ops(&omap_pm_ops); + + pm_idle = omap3_pm_idle; + +err1: + return ret; +err2: + free_irq(INT_34XX_PRCM_MPU_IRQ, NULL); + list_for_each_entry_safe(pwrst, tmp, &pwrst_list, node) { + list_del(&pwrst->node); + kfree(pwrst); + } + return ret; +} + +late_initcall(omap3_pm_init); diff --git a/arch/arm/mach-omap2/prcm-common.h b/arch/arm/mach-omap2/prcm-common.h index 812d50ee495..cb1ae84e092 100644 --- a/arch/arm/mach-omap2/prcm-common.h +++ b/arch/arm/mach-omap2/prcm-common.h @@ -276,6 +276,8 @@ /* CM_FCLKEN_WKUP, CM_ICLKEN_WKUP, PM_WKEN_WKUP shared bits */ #define OMAP3430_EN_GPIO1 (1 << 3) #define OMAP3430_EN_GPIO1_SHIFT 3 +#define OMAP3430_EN_GPT12 (1 << 1) +#define OMAP3430_EN_GPT12_SHIFT 1 #define OMAP3430_EN_GPT1 (1 << 0) #define OMAP3430_EN_GPT1_SHIFT 0 diff --git a/arch/arm/mach-omap2/sdrc.c b/arch/arm/mach-omap2/sdrc.c index d62e4e10d4b..2045441e838 100644 --- a/arch/arm/mach-omap2/sdrc.c +++ b/arch/arm/mach-omap2/sdrc.c @@ -60,9 +60,12 @@ struct omap_sdrc_params *omap2_sdrc_get_params(unsigned long r) { struct omap_sdrc_params *sp; + if (!sdrc_init_params) + return NULL; + sp = sdrc_init_params; - while (sp->rate != r) + while (sp->rate && sp->rate != r) sp++; if (!sp->rate) diff --git a/arch/arm/mach-omap2/sleep24xx.S b/arch/arm/mach-omap2/sleep24xx.S index bf9e96105e1..130aadbfa08 100644 --- a/arch/arm/mach-omap2/sleep24xx.S +++ b/arch/arm/mach-omap2/sleep24xx.S @@ -28,7 +28,6 @@ #include <linux/linkage.h> #include <asm/assembler.h> #include <mach/io.h> -#include <mach/pm.h> #include <mach/omap24xx.h> diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S new file mode 100644 index 00000000000..e5e2553e79a --- /dev/null +++ b/arch/arm/mach-omap2/sleep34xx.S @@ -0,0 +1,436 @@ +/* + * linux/arch/arm/mach-omap2/sleep.S + * + * (C) Copyright 2007 + * Texas Instruments + * Karthik Dasu <karthik-dp@ti.com> + * + * (C) Copyright 2004 + * Texas Instruments, <www.ti.com> + * Richard Woodruff <r-woodruff2@ti.com> + * + * 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 <mach/io.h> +#include <mach/control.h> + +#include "prm.h" +#include "sdrc.h" + +#define PM_PREPWSTST_CORE_V OMAP34XX_PRM_REGADDR(CORE_MOD, \ + OMAP3430_PM_PREPWSTST) +#define PM_PREPWSTST_MPU_V OMAP34XX_PRM_REGADDR(MPU_MOD, \ + OMAP3430_PM_PREPWSTST) +#define PM_PWSTCTRL_MPU_P OMAP34XX_PRM_REGADDR(MPU_MOD, PM_PWSTCTRL) +#define SCRATCHPAD_MEM_OFFS 0x310 /* Move this as correct place is + * available */ +#define SCRATCHPAD_BASE_P OMAP343X_CTRL_REGADDR(\ + OMAP343X_CONTROL_MEM_WKUP +\ + SCRATCHPAD_MEM_OFFS) +#define SDRC_POWER_V OMAP34XX_SDRC_REGADDR(SDRC_POWER) + + .text +/* Function call to get the restore pointer for resume from OFF */ +ENTRY(get_restore_pointer) + stmfd sp!, {lr} @ save registers on stack + adr r0, restore + ldmfd sp!, {pc} @ restore regs and return +ENTRY(get_restore_pointer_sz) + .word . - get_restore_pointer_sz +/* + * Forces OMAP into idle state + * + * omap34xx_suspend() - This bit of code just executes the WFI + * for normal idles. + * + * Note: This code get's copied to internal SRAM at boot. When the OMAP + * wakes up it continues execution at the point it went to sleep. + */ +ENTRY(omap34xx_cpu_suspend) + stmfd sp!, {r0-r12, lr} @ save registers on stack +loop: + /*b loop*/ @Enable to debug by stepping through code + /* r0 contains restore pointer in sdram */ + /* r1 contains information about saving context */ + ldr r4, sdrc_power @ read the SDRC_POWER register + ldr r5, [r4] @ read the contents of SDRC_POWER + orr r5, r5, #0x40 @ enable self refresh on idle req + str r5, [r4] @ write back to SDRC_POWER register + + cmp r1, #0x0 + /* If context save is required, do that and execute wfi */ + bne save_context_wfi + /* Data memory barrier and Data sync barrier */ + mov r1, #0 + mcr p15, 0, r1, c7, c10, 4 + mcr p15, 0, r1, c7, c10, 5 + + wfi @ wait for interrupt + + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + bl i_dll_wait + + ldmfd sp!, {r0-r12, pc} @ restore regs and return +restore: + /* b restore*/ @ Enable to debug restore code + /* Check what was the reason for mpu reset and store the reason in r9*/ + /* 1 - Only L1 and logic lost */ + /* 2 - Only L2 lost - In this case, we wont be here */ + /* 3 - Both L1 and L2 lost */ + ldr r1, pm_pwstctrl_mpu + ldr r2, [r1] + and r2, r2, #0x3 + cmp r2, #0x0 @ Check if target power state was OFF or RET + moveq r9, #0x3 @ MPU OFF => L1 and L2 lost + movne r9, #0x1 @ Only L1 and L2 lost => avoid L2 invalidation + bne logic_l1_restore + /* Execute smi to invalidate L2 cache */ + mov r12, #0x1 @ set up to invalide L2 +smi: .word 0xE1600070 @ Call SMI monitor (smieq) +logic_l1_restore: + mov r1, #0 + /* Invalidate all instruction caches to PoU + * and flush branch target cache */ + mcr p15, 0, r1, c7, c5, 0 + + ldr r4, scratchpad_base + ldr r3, [r4,#0xBC] + ldmia r3!, {r4-r6} + mov sp, r4 + msr spsr_cxsf, r5 + mov lr, r6 + + ldmia r3!, {r4-r9} + /* Coprocessor access Control Register */ + mcr p15, 0, r4, c1, c0, 2 + + /* TTBR0 */ + MCR p15, 0, r5, c2, c0, 0 + /* TTBR1 */ + MCR p15, 0, r6, c2, c0, 1 + /* Translation table base control register */ + MCR p15, 0, r7, c2, c0, 2 + /*domain access Control Register */ + MCR p15, 0, r8, c3, c0, 0 + /* data fault status Register */ + MCR p15, 0, r9, c5, c0, 0 + + ldmia r3!,{r4-r8} + /* instruction fault status Register */ + MCR p15, 0, r4, c5, c0, 1 + /*Data Auxiliary Fault Status Register */ + MCR p15, 0, r5, c5, c1, 0 + /*Instruction Auxiliary Fault Status Register*/ + MCR p15, 0, r6, c5, c1, 1 + /*Data Fault Address Register */ + MCR p15, 0, r7, c6, c0, 0 + /*Instruction Fault Address Register*/ + MCR p15, 0, r8, c6, c0, 2 + ldmia r3!,{r4-r7} + + /* user r/w thread and process ID */ + MCR p15, 0, r4, c13, c0, 2 + /* user ro thread and process ID */ + MCR p15, 0, r5, c13, c0, 3 + /*Privileged only thread and process ID */ + MCR p15, 0, r6, c13, c0, 4 + /* cache size selection */ + MCR p15, 2, r7, c0, c0, 0 + ldmia r3!,{r4-r8} + /* Data TLB lockdown registers */ + MCR p15, 0, r4, c10, c0, 0 + /* Instruction TLB lockdown registers */ + MCR p15, 0, r5, c10, c0, 1 + /* Secure or Nonsecure Vector Base Address */ + MCR p15, 0, r6, c12, c0, 0 + /* FCSE PID */ + MCR p15, 0, r7, c13, c0, 0 + /* Context PID */ + MCR p15, 0, r8, c13, c0, 1 + + ldmia r3!,{r4-r5} + /* primary memory remap register */ + MCR p15, 0, r4, c10, c2, 0 + /*normal memory remap register */ + MCR p15, 0, r5, c10, c2, 1 + + /* Restore cpsr */ + ldmia r3!,{r4} /*load CPSR from SDRAM*/ + msr cpsr, r4 /*store cpsr */ + + /* Enabling MMU here */ + mrc p15, 0, r7, c2, c0, 2 /* Read TTBRControl */ + /* Extract N (0:2) bits and decide whether to use TTBR0 or TTBR1*/ + and r7, #0x7 + cmp r7, #0x0 + beq usettbr0 +ttbr_error: + /* More work needs to be done to support N[0:2] value other than 0 + * So looping here so that the error can be detected + */ + b ttbr_error +usettbr0: + mrc p15, 0, r2, c2, c0, 0 + ldr r5, ttbrbit_mask + and r2, r5 + mov r4, pc + ldr r5, table_index_mask + and r4, r5 /* r4 = 31 to 20 bits of pc */ + /* Extract the value to be written to table entry */ + ldr r1, table_entry + add r1, r1, r4 /* r1 has value to be written to table entry*/ + /* Getting the address of table entry to modify */ + lsr r4, #18 + add r2, r4 /* r2 has the location which needs to be modified */ + /* Storing previous entry of location being modified */ + ldr r5, scratchpad_base + ldr r4, [r2] + str r4, [r5, #0xC0] + /* Modify the table entry */ + str r1, [r2] + /* Storing address of entry being modified + * - will be restored after enabling MMU */ + ldr r5, scratchpad_base + str r2, [r5, #0xC4] + + mov r0, #0 + mcr p15, 0, r0, c7, c5, 4 @ Flush prefetch buffer + mcr p15, 0, r0, c7, c5, 6 @ Invalidate branch predictor array + mcr p15, 0, r0, c8, c5, 0 @ Invalidate instruction TLB + mcr p15, 0, r0, c8, c6, 0 @ Invalidate data TLB + /* Restore control register but dont enable caches here*/ + /* Caches will be enabled after restoring MMU table entry */ + ldmia r3!, {r4} + /* Store previous value of control register in scratchpad */ + str r4, [r5, #0xC8] + ldr r2, cache_pred_disable_mask + and r4, r2 + mcr p15, 0, r4, c1, c0, 0 + + ldmfd sp!, {r0-r12, pc} @ restore regs and return +save_context_wfi: + /*b save_context_wfi*/ @ enable to debug save code + mov r8, r0 /* Store SDRAM address in r8 */ + /* Check what that target sleep state is:stored in r1*/ + /* 1 - Only L1 and logic lost */ + /* 2 - Only L2 lost */ + /* 3 - Both L1 and L2 lost */ + cmp r1, #0x2 /* Only L2 lost */ + beq clean_l2 + cmp r1, #0x1 /* L2 retained */ + /* r9 stores whether to clean L2 or not*/ + moveq r9, #0x0 /* Dont Clean L2 */ + movne r9, #0x1 /* Clean L2 */ +l1_logic_lost: + /* Store sp and spsr to SDRAM */ + mov r4, sp + mrs r5, spsr + mov r6, lr + stmia r8!, {r4-r6} + /* Save all ARM registers */ + /* Coprocessor access control register */ + mrc p15, 0, r6, c1, c0, 2 + stmia r8!, {r6} + /* TTBR0, TTBR1 and Translation table base control */ + mrc p15, 0, r4, c2, c0, 0 + mrc p15, 0, r5, c2, c0, 1 + mrc p15, 0, r6, c2, c0, 2 + stmia r8!, {r4-r6} + /* Domain access control register, data fault status register, + and instruction fault status register */ + mrc p15, 0, r4, c3, c0, 0 + mrc p15, 0, r5, c5, c0, 0 + mrc p15, 0, r6, c5, c0, 1 + stmia r8!, {r4-r6} + /* Data aux fault status register, instruction aux fault status, + datat fault address register and instruction fault address register*/ + mrc p15, 0, r4, c5, c1, 0 + mrc p15, 0, r5, c5, c1, 1 + mrc p15, 0, r6, c6, c0, 0 + mrc p15, 0, r7, c6, c0, 2 + stmia r8!, {r4-r7} + /* user r/w thread and process ID, user r/o thread and process ID, + priv only thread and process ID, cache size selection */ + mrc p15, 0, r4, c13, c0, 2 + mrc p15, 0, r5, c13, c0, 3 + mrc p15, 0, r6, c13, c0, 4 + mrc p15, 2, r7, c0, c0, 0 + stmia r8!, {r4-r7} + /* Data TLB lockdown, instruction TLB lockdown registers */ + mrc p15, 0, r5, c10, c0, 0 + mrc p15, 0, r6, c10, c0, 1 + stmia r8!, {r5-r6} + /* Secure or non secure vector base address, FCSE PID, Context PID*/ + mrc p15, 0, r4, c12, c0, 0 + mrc p15, 0, r5, c13, c0, 0 + mrc p15, 0, r6, c13, c0, 1 + stmia r8!, {r4-r6} + /* Primary remap, normal remap registers */ + mrc p15, 0, r4, c10, c2, 0 + mrc p15, 0, r5, c10, c2, 1 + stmia r8!,{r4-r5} + + /* Store current cpsr*/ + mrs r2, cpsr + stmia r8!, {r2} + + mrc p15, 0, r4, c1, c0, 0 + /* save control register */ + stmia r8!, {r4} +clean_caches: + /* Clean Data or unified cache to POU*/ + /* How to invalidate only L1 cache???? - #FIX_ME# */ + /* mcr p15, 0, r11, c7, c11, 1 */ + cmp r9, #1 /* Check whether L2 inval is required or not*/ + bne skip_l2_inval +clean_l2: + /* read clidr */ + mrc p15, 1, r0, c0, c0, 1 + /* extract loc from clidr */ + ands r3, r0, #0x7000000 + /* left align loc bit field */ + mov r3, r3, lsr #23 + /* if loc is 0, then no need to clean */ + beq finished + /* start clean at cache level 0 */ + mov r10, #0 +loop1: + /* work out 3x current cache level */ + add r2, r10, r10, lsr #1 + /* extract cache type bits from clidr*/ + mov r1, r0, lsr r2 + /* mask of the bits for current cache only */ + and r1, r1, #7 + /* see what cache we have at this level */ + cmp r1, #2 + /* skip if no cache, or just i-cache */ + blt skip + /* select current cache level in cssr */ + mcr p15, 2, r10, c0, c0, 0 + /* isb to sych the new cssr&csidr */ + isb + /* read the new csidr */ + mrc p15, 1, r1, c0, c0, 0 + /* extract the length of the cache lines */ + and r2, r1, #7 + /* add 4 (line length offset) */ + add r2, r2, #4 + ldr r4, assoc_mask + /* find maximum number on the way size */ + ands r4, r4, r1, lsr #3 + /* find bit position of way size increment */ + clz r5, r4 + ldr r7, numset_mask + /* extract max number of the index size*/ + ands r7, r7, r1, lsr #13 +loop2: + mov r9, r4 + /* create working copy of max way size*/ +loop3: + /* factor way and cache number into r11 */ + orr r11, r10, r9, lsl r5 + /* factor index number into r11 */ + orr r11, r11, r7, lsl r2 + /*clean & invalidate by set/way */ + mcr p15, 0, r11, c7, c10, 2 + /* decrement the way*/ + subs r9, r9, #1 + bge loop3 + /*decrement the index */ + subs r7, r7, #1 + bge loop2 +skip: + add r10, r10, #2 + /* increment cache number */ + cmp r3, r10 + bgt loop1 +finished: + /*swith back to cache level 0 */ + mov r10, #0 + /* select current cache level in cssr */ + mcr p15, 2, r10, c0, c0, 0 + isb +skip_l2_inval: + /* Data memory barrier and Data sync barrier */ + mov r1, #0 + mcr p15, 0, r1, c7, c10, 4 + mcr p15, 0, r1, c7, c10, 5 + + wfi @ wait for interrupt + nop + nop + nop + nop + nop + nop + nop + nop + nop + nop + bl i_dll_wait + /* restore regs and return */ + ldmfd sp!, {r0-r12, pc} + +i_dll_wait: + ldr r4, clk_stabilize_delay + +i_dll_delay: + subs r4, r4, #0x1 + bne i_dll_delay + ldr r4, sdrc_power + ldr r5, [r4] + bic r5, r5, #0x40 + str r5, [r4] + bx lr +pm_prepwstst_core: + .word PM_PREPWSTST_CORE_V +pm_prepwstst_mpu: + .word PM_PREPWSTST_MPU_V +pm_pwstctrl_mpu: + .word PM_PWSTCTRL_MPU_P +scratchpad_base: + .word SCRATCHPAD_BASE_P +sdrc_power: + .word SDRC_POWER_V +context_mem: + .word 0x803E3E14 +clk_stabilize_delay: + .word 0x000001FF +assoc_mask: + .word 0x3ff +numset_mask: + .word 0x7fff +ttbrbit_mask: + .word 0xFFFFC000 +table_index_mask: + .word 0xFFF00000 +table_entry: + .word 0x00000C02 +cache_pred_disable_mask: + .word 0xFFFFE7FB +ENTRY(omap34xx_cpu_suspend_sz) + .word . - omap34xx_cpu_suspend diff --git a/arch/arm/mach-omap2/usb-musb.c b/arch/arm/mach-omap2/usb-musb.c index 34a56a136ef..215d463b70e 100644 --- a/arch/arm/mach-omap2/usb-musb.c +++ b/arch/arm/mach-omap2/usb-musb.c @@ -28,7 +28,6 @@ #include <mach/hardware.h> #include <mach/irqs.h> -#include <mach/pm.h> #include <mach/mux.h> #include <mach/usb.h> diff --git a/arch/arm/plat-omap/Kconfig b/arch/arm/plat-omap/Kconfig index 9dd68fafb37..4bc9ed701dc 100644 --- a/arch/arm/plat-omap/Kconfig +++ b/arch/arm/plat-omap/Kconfig @@ -171,7 +171,7 @@ endchoice config OMAP_SERIAL_WAKE bool "Enable wake-up events for serial ports" - depends on OMAP_MUX + depends on ARCH_OMAP1 && OMAP_MUX default y help Select this option if you want to have your system wake up diff --git a/arch/arm/plat-omap/common.c b/arch/arm/plat-omap/common.c index 70b68ef8320..86ee23d6f73 100644 --- a/arch/arm/plat-omap/common.c +++ b/arch/arm/plat-omap/common.c @@ -11,7 +11,6 @@ #include <linux/kernel.h> #include <linux/init.h> #include <linux/delay.h> -#include <linux/pm.h> #include <linux/console.h> #include <linux/serial.h> #include <linux/tty.h> |