diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/arm/mach-s3c64xx/pm.c')
| -rw-r--r-- | ANDROID_3.4.5/arch/arm/mach-s3c64xx/pm.c | 374 |
1 files changed, 0 insertions, 374 deletions
diff --git a/ANDROID_3.4.5/arch/arm/mach-s3c64xx/pm.c b/ANDROID_3.4.5/arch/arm/mach-s3c64xx/pm.c deleted file mode 100644 index 7d3e81b9..00000000 --- a/ANDROID_3.4.5/arch/arm/mach-s3c64xx/pm.c +++ /dev/null @@ -1,374 +0,0 @@ -/* linux/arch/arm/plat-s3c64xx/pm.c - * - * Copyright 2008 Openmoko, Inc. - * Copyright 2008 Simtec Electronics - * Ben Dooks <ben@simtec.co.uk> - * http://armlinux.simtec.co.uk/ - * - * S3C64XX CPU PM support. - * - * 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/init.h> -#include <linux/suspend.h> -#include <linux/serial_core.h> -#include <linux/io.h> -#include <linux/gpio.h> -#include <linux/pm_domain.h> - -#include <mach/map.h> -#include <mach/irqs.h> - -#include <plat/devs.h> -#include <plat/pm.h> -#include <plat/wakeup-mask.h> - -#include <mach/regs-sys.h> -#include <mach/regs-gpio.h> -#include <mach/regs-clock.h> -#include <mach/regs-syscon-power.h> -#include <mach/regs-gpio-memport.h> -#include <mach/regs-modem.h> - -struct s3c64xx_pm_domain { - char *const name; - u32 ena; - u32 pwr_stat; - struct generic_pm_domain pd; -}; - -static int s3c64xx_pd_off(struct generic_pm_domain *domain) -{ - struct s3c64xx_pm_domain *pd; - u32 val; - - pd = container_of(domain, struct s3c64xx_pm_domain, pd); - - val = __raw_readl(S3C64XX_NORMAL_CFG); - val &= ~(pd->ena); - __raw_writel(val, S3C64XX_NORMAL_CFG); - - return 0; -} - -static int s3c64xx_pd_on(struct generic_pm_domain *domain) -{ - struct s3c64xx_pm_domain *pd; - u32 val; - long retry = 1000000L; - - pd = container_of(domain, struct s3c64xx_pm_domain, pd); - - val = __raw_readl(S3C64XX_NORMAL_CFG); - val |= pd->ena; - __raw_writel(val, S3C64XX_NORMAL_CFG); - - /* Not all domains provide power status readback */ - if (pd->pwr_stat) { - do { - cpu_relax(); - if (__raw_readl(S3C64XX_BLK_PWR_STAT) & pd->pwr_stat) - break; - } while (retry--); - - if (!retry) { - pr_err("Failed to start domain %s\n", pd->name); - return -EBUSY; - } - } - - return 0; -} - -static struct s3c64xx_pm_domain s3c64xx_pm_irom = { - .name = "IROM", - .ena = S3C64XX_NORMALCFG_IROM_ON, - .pd = { - .power_off = s3c64xx_pd_off, - .power_on = s3c64xx_pd_on, - }, -}; - -static struct s3c64xx_pm_domain s3c64xx_pm_etm = { - .name = "ETM", - .ena = S3C64XX_NORMALCFG_DOMAIN_ETM_ON, - .pwr_stat = S3C64XX_BLKPWRSTAT_ETM, - .pd = { - .power_off = s3c64xx_pd_off, - .power_on = s3c64xx_pd_on, - }, -}; - -static struct s3c64xx_pm_domain s3c64xx_pm_s = { - .name = "S", - .ena = S3C64XX_NORMALCFG_DOMAIN_S_ON, - .pwr_stat = S3C64XX_BLKPWRSTAT_S, - .pd = { - .power_off = s3c64xx_pd_off, - .power_on = s3c64xx_pd_on, - }, -}; - -static struct s3c64xx_pm_domain s3c64xx_pm_f = { - .name = "F", - .ena = S3C64XX_NORMALCFG_DOMAIN_F_ON, - .pwr_stat = S3C64XX_BLKPWRSTAT_F, - .pd = { - .power_off = s3c64xx_pd_off, - .power_on = s3c64xx_pd_on, - }, -}; - -static struct s3c64xx_pm_domain s3c64xx_pm_p = { - .name = "P", - .ena = S3C64XX_NORMALCFG_DOMAIN_P_ON, - .pwr_stat = S3C64XX_BLKPWRSTAT_P, - .pd = { - .power_off = s3c64xx_pd_off, - .power_on = s3c64xx_pd_on, - }, -}; - -static struct s3c64xx_pm_domain s3c64xx_pm_i = { - .name = "I", - .ena = S3C64XX_NORMALCFG_DOMAIN_I_ON, - .pwr_stat = S3C64XX_BLKPWRSTAT_I, - .pd = { - .power_off = s3c64xx_pd_off, - .power_on = s3c64xx_pd_on, - }, -}; - -static struct s3c64xx_pm_domain s3c64xx_pm_g = { - .name = "G", - .ena = S3C64XX_NORMALCFG_DOMAIN_G_ON, - .pd = { - .power_off = s3c64xx_pd_off, - .power_on = s3c64xx_pd_on, - }, -}; - -static struct s3c64xx_pm_domain s3c64xx_pm_v = { - .name = "V", - .ena = S3C64XX_NORMALCFG_DOMAIN_V_ON, - .pwr_stat = S3C64XX_BLKPWRSTAT_V, - .pd = { - .power_off = s3c64xx_pd_off, - .power_on = s3c64xx_pd_on, - }, -}; - -static struct s3c64xx_pm_domain *s3c64xx_always_on_pm_domains[] = { - &s3c64xx_pm_irom, -}; - -static struct s3c64xx_pm_domain *s3c64xx_pm_domains[] = { - &s3c64xx_pm_etm, - &s3c64xx_pm_g, - &s3c64xx_pm_v, - &s3c64xx_pm_i, - &s3c64xx_pm_p, - &s3c64xx_pm_s, - &s3c64xx_pm_f, -}; - -#ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK -void s3c_pm_debug_smdkled(u32 set, u32 clear) -{ - unsigned long flags; - int i; - - local_irq_save(flags); - for (i = 0; i < 4; i++) { - if (clear & (1 << i)) - gpio_set_value(S3C64XX_GPN(12 + i), 0); - if (set & (1 << i)) - gpio_set_value(S3C64XX_GPN(12 + i), 1); - } - local_irq_restore(flags); -} -#endif - -static struct sleep_save core_save[] = { - SAVE_ITEM(S3C_APLL_LOCK), - SAVE_ITEM(S3C_MPLL_LOCK), - SAVE_ITEM(S3C_EPLL_LOCK), - SAVE_ITEM(S3C_CLK_SRC), - SAVE_ITEM(S3C_CLK_DIV0), - SAVE_ITEM(S3C_CLK_DIV1), - SAVE_ITEM(S3C_CLK_DIV2), - SAVE_ITEM(S3C_CLK_OUT), - SAVE_ITEM(S3C_HCLK_GATE), - SAVE_ITEM(S3C_PCLK_GATE), - SAVE_ITEM(S3C_SCLK_GATE), - SAVE_ITEM(S3C_MEM0_GATE), - - SAVE_ITEM(S3C_EPLL_CON1), - SAVE_ITEM(S3C_EPLL_CON0), - - SAVE_ITEM(S3C64XX_MEM0DRVCON), - SAVE_ITEM(S3C64XX_MEM1DRVCON), - -#ifndef CONFIG_CPU_FREQ - SAVE_ITEM(S3C_APLL_CON), - SAVE_ITEM(S3C_MPLL_CON), -#endif -}; - -static struct sleep_save misc_save[] = { - SAVE_ITEM(S3C64XX_AHB_CON0), - SAVE_ITEM(S3C64XX_AHB_CON1), - SAVE_ITEM(S3C64XX_AHB_CON2), - - SAVE_ITEM(S3C64XX_SPCON), - - SAVE_ITEM(S3C64XX_MEM0CONSTOP), - SAVE_ITEM(S3C64XX_MEM1CONSTOP), - SAVE_ITEM(S3C64XX_MEM0CONSLP0), - SAVE_ITEM(S3C64XX_MEM0CONSLP1), - SAVE_ITEM(S3C64XX_MEM1CONSLP), - - SAVE_ITEM(S3C64XX_SDMA_SEL), - SAVE_ITEM(S3C64XX_MODEM_MIFPCON), - - SAVE_ITEM(S3C64XX_NORMAL_CFG), -}; - -void s3c_pm_configure_extint(void) -{ - __raw_writel(s3c_irqwake_eintmask, S3C64XX_EINT_MASK); -} - -void s3c_pm_restore_core(void) -{ - __raw_writel(0, S3C64XX_EINT_MASK); - - s3c_pm_debug_smdkled(1 << 2, 0); - - s3c_pm_do_restore_core(core_save, ARRAY_SIZE(core_save)); - s3c_pm_do_restore(misc_save, ARRAY_SIZE(misc_save)); -} - -void s3c_pm_save_core(void) -{ - s3c_pm_do_save(misc_save, ARRAY_SIZE(misc_save)); - s3c_pm_do_save(core_save, ARRAY_SIZE(core_save)); -} - -/* since both s3c6400 and s3c6410 share the same sleep pm calls, we - * put the per-cpu code in here until any new cpu comes along and changes - * this. - */ - -static int s3c64xx_cpu_suspend(unsigned long arg) -{ - unsigned long tmp; - - /* set our standby method to sleep */ - - tmp = __raw_readl(S3C64XX_PWR_CFG); - tmp &= ~S3C64XX_PWRCFG_CFG_WFI_MASK; - tmp |= S3C64XX_PWRCFG_CFG_WFI_SLEEP; - __raw_writel(tmp, S3C64XX_PWR_CFG); - - /* clear any old wakeup */ - - __raw_writel(__raw_readl(S3C64XX_WAKEUP_STAT), - S3C64XX_WAKEUP_STAT); - - /* set the LED state to 0110 over sleep */ - s3c_pm_debug_smdkled(3 << 1, 0xf); - - /* issue the standby signal into the pm unit. Note, we - * issue a write-buffer drain just in case */ - - tmp = 0; - - asm("b 1f\n\t" - ".align 5\n\t" - "1:\n\t" - "mcr p15, 0, %0, c7, c10, 5\n\t" - "mcr p15, 0, %0, c7, c10, 4\n\t" - "mcr p15, 0, %0, c7, c0, 4" :: "r" (tmp)); - - /* we should never get past here */ - - panic("sleep resumed to originator?"); -} - -/* mapping of interrupts to parts of the wakeup mask */ -static struct samsung_wakeup_mask wake_irqs[] = { - { .irq = IRQ_RTC_ALARM, .bit = S3C64XX_PWRCFG_RTC_ALARM_DISABLE, }, - { .irq = IRQ_RTC_TIC, .bit = S3C64XX_PWRCFG_RTC_TICK_DISABLE, }, - { .irq = IRQ_PENDN, .bit = S3C64XX_PWRCFG_TS_DISABLE, }, - { .irq = IRQ_HSMMC0, .bit = S3C64XX_PWRCFG_MMC0_DISABLE, }, - { .irq = IRQ_HSMMC1, .bit = S3C64XX_PWRCFG_MMC1_DISABLE, }, - { .irq = IRQ_HSMMC2, .bit = S3C64XX_PWRCFG_MMC2_DISABLE, }, - { .irq = NO_WAKEUP_IRQ, .bit = S3C64XX_PWRCFG_BATF_DISABLE}, - { .irq = NO_WAKEUP_IRQ, .bit = S3C64XX_PWRCFG_MSM_DISABLE }, - { .irq = NO_WAKEUP_IRQ, .bit = S3C64XX_PWRCFG_HSI_DISABLE }, - { .irq = NO_WAKEUP_IRQ, .bit = S3C64XX_PWRCFG_MSM_DISABLE }, -}; - -static void s3c64xx_pm_prepare(void) -{ - samsung_sync_wakemask(S3C64XX_PWR_CFG, - wake_irqs, ARRAY_SIZE(wake_irqs)); - - /* store address of resume. */ - __raw_writel(virt_to_phys(s3c_cpu_resume), S3C64XX_INFORM0); - - /* ensure previous wakeup state is cleared before sleeping */ - __raw_writel(__raw_readl(S3C64XX_WAKEUP_STAT), S3C64XX_WAKEUP_STAT); -} - -int __init s3c64xx_pm_init(void) -{ - int i; - - s3c_pm_init(); - - for (i = 0; i < ARRAY_SIZE(s3c64xx_always_on_pm_domains); i++) - pm_genpd_init(&s3c64xx_always_on_pm_domains[i]->pd, - &pm_domain_always_on_gov, false); - - for (i = 0; i < ARRAY_SIZE(s3c64xx_pm_domains); i++) - pm_genpd_init(&s3c64xx_pm_domains[i]->pd, NULL, false); - - if (dev_get_platdata(&s3c_device_fb.dev)) - pm_genpd_add_device(&s3c64xx_pm_f.pd, &s3c_device_fb.dev); - - return 0; -} - -static __init int s3c64xx_pm_initcall(void) -{ - pm_cpu_prep = s3c64xx_pm_prepare; - pm_cpu_sleep = s3c64xx_cpu_suspend; - pm_uart_udivslot = 1; - -#ifdef CONFIG_S3C_PM_DEBUG_LED_SMDK - gpio_request(S3C64XX_GPN(12), "DEBUG_LED0"); - gpio_request(S3C64XX_GPN(13), "DEBUG_LED1"); - gpio_request(S3C64XX_GPN(14), "DEBUG_LED2"); - gpio_request(S3C64XX_GPN(15), "DEBUG_LED3"); - gpio_direction_output(S3C64XX_GPN(12), 0); - gpio_direction_output(S3C64XX_GPN(13), 0); - gpio_direction_output(S3C64XX_GPN(14), 0); - gpio_direction_output(S3C64XX_GPN(15), 0); -#endif - - return 0; -} -arch_initcall(s3c64xx_pm_initcall); - -static __init int s3c64xx_pm_late_initcall(void) -{ - pm_genpd_poweroff_unused(); - - return 0; -} -late_initcall(s3c64xx_pm_late_initcall); |