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-rw-r--r--arch/arm/mach-s3c64xx/pm.c350
1 files changed, 0 insertions, 350 deletions
diff --git a/arch/arm/mach-s3c64xx/pm.c b/arch/arm/mach-s3c64xx/pm.c
deleted file mode 100644
index fd6dbb263ed5..000000000000
--- a/arch/arm/mach-s3c64xx/pm.c
+++ /dev/null
@@ -1,350 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-//
-// Copyright 2008 Openmoko, Inc.
-// Copyright 2008 Simtec Electronics
-// Ben Dooks <ben@simtec.co.uk>
-// http://armlinux.simtec.co.uk/
-//
-// S3C64XX CPU PM support.
-
-#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/cpu.h>
-#include <plat/devs.h>
-#include <plat/pm.h>
-#include <plat/wakeup-mask.h>
-
-#include <mach/regs-gpio.h>
-#include <mach/regs-clock.h>
-#include <mach/gpio-samsung.h>
-
-#include "regs-gpio-memport.h"
-#include "regs-modem.h"
-#include "regs-sys.h"
-#include "regs-syscon-power.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
-
-#ifdef CONFIG_PM_SLEEP
-static struct sleep_save core_save[] = {
- SAVE_ITEM(S3C64XX_MEM0DRVCON),
- SAVE_ITEM(S3C64XX_MEM1DRVCON),
-};
-
-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));
-}
-#endif
-
-/* 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 */
-
- pr_info("Failed to suspend the system\n");
- return 1; /* Aborting suspend */
-}
-
-/* mapping of interrupts to parts of the wakeup mask */
-static const 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(__pa_symbol(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);
-
-#ifdef CONFIG_S3C_DEV_FB
- if (dev_get_platdata(&s3c_device_fb.dev))
- pm_genpd_add_device(&s3c64xx_pm_f.pd, &s3c_device_fb.dev);
-#endif
-
- return 0;
-}
-
-static __init int s3c64xx_pm_initcall(void)
-{
- if (!soc_is_s3c64xx())
- return 0;
-
- pm_cpu_prep = s3c64xx_pm_prepare;
- pm_cpu_sleep = s3c64xx_cpu_suspend;
-
-#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);
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