obj-$(CONFIG_OMAP_MPU_TIMER) += timer-gp.o
# Power Management
-obj-$(CONFIG_PM) += pm.o sleep.o
+obj-$(CONFIG_PM) += pm.o pm-domain.o sleep.o
# Specific board support
obj-$(CONFIG_MACH_OMAP_GENERIC) += board-generic.o
--- /dev/null
+/*
+ * linux/arch/arm/mach-omap2/pm-domain.c
+ *
+ * Power domain functions for OMAP2
+ *
+ * Copyright (C) 2006 Nokia Corporation
+ * Tony Lindgren <tony@atomide.com>
+ *
+ * Some code based on earlier OMAP2 sample PM code
+ * Copyright (C) 2005 Texas Instruments, Inc.
+ * 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 version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+
+#include <asm/io.h>
+
+#include "prcm-regs.h"
+
+/* Power domain offsets */
+#define PM_MPU_OFFSET 0x100
+#define PM_CORE_OFFSET 0x200
+#define PM_GFX_OFFSET 0x300
+#define PM_WKUP_OFFSET 0x400 /* Autoidle only */
+#define PM_PLL_OFFSET 0x500 /* Autoidle only */
+#define PM_DSP_OFFSET 0x800
+#define PM_MDM_OFFSET 0xc00
+
+/* Power domain wake-up dependency control register */
+#define PM_WKDEP_OFFSET 0xc8
+#define EN_MDM (1 << 5)
+#define EN_WKUP (1 << 4)
+#define EN_GFX (1 << 3)
+#define EN_DSP (1 << 2)
+#define EN_MPU (1 << 1)
+#define EN_CORE (1 << 0)
+
+/* Core power domain state transition control register */
+#define PM_PWSTCTRL_OFFSET 0xe0
+#define FORCESTATE (1 << 18) /* Only for DSP & GFX */
+#define MEM4RETSTATE (1 << 6)
+#define MEM3RETSTATE (1 << 5)
+#define MEM2RETSTATE (1 << 4)
+#define MEM1RETSTATE (1 << 3)
+#define LOGICRETSTATE (1 << 2) /* Logic is retained */
+#define POWERSTATE_OFF 0x3
+#define POWERSTATE_RETENTION 0x1
+#define POWERSTATE_ON 0x0
+
+/* Power domain state register */
+#define PM_PWSTST_OFFSET 0xe4
+
+/* Hardware supervised state transition control register */
+#define CM_CLKSTCTRL_OFFSET 0x48
+#define AUTOSTAT_MPU (1 << 0) /* MPU */
+#define AUTOSTAT_DSS (1 << 2) /* Core */
+#define AUTOSTAT_L4 (1 << 1) /* Core */
+#define AUTOSTAT_L3 (1 << 0) /* Core */
+#define AUTOSTAT_GFX (1 << 0) /* GFX */
+#define AUTOSTAT_IVA (1 << 8) /* 2420 IVA in DSP domain */
+#define AUTOSTAT_DSP (1 << 0) /* DSP */
+#define AUTOSTAT_MDM (1 << 0) /* MDM */
+
+/* Automatic control of interface clock idling */
+#define CM_AUTOIDLE1_OFFSET 0x30
+#define CM_AUTOIDLE2_OFFSET 0x34 /* Core only */
+#define CM_AUTOIDLE3_OFFSET 0x38 /* Core only */
+#define CM_AUTOIDLE4_OFFSET 0x3c /* Core only */
+#define AUTO_54M(x) (((x) & 0x3) << 6)
+#define AUTO_96M(x) (((x) & 0x3) << 2)
+#define AUTO_DPLL(x) (((x) & 0x3) << 0)
+#define AUTO_STOPPED 0x3
+#define AUTO_BYPASS_FAST 0x2 /* DPLL only */
+#define AUTO_BYPASS_LOW_POWER 0x1 /* DPLL only */
+#define AUTO_DISABLED 0x0
+
+/* Voltage control PRCM_VOLTCTRL bits */
+#define AUTO_EXTVOLT (1 << 15)
+#define FORCE_EXTVOLT (1 << 14)
+#define SETOFF_LEVEL(x) (((x) & 0x3) << 12)
+#define MEMRETCTRL (1 << 8)
+#define SETRET_LEVEL(x) (((x) & 0x3) << 6)
+#define VOLT_LEVEL(x) (((x) & 0x3) << 0)
+
+#define OMAP24XX_PRCM_VBASE IO_ADDRESS(OMAP24XX_PRCM_BASE)
+#define prcm_readl(r) __raw_readl(OMAP24XX_PRCM_VBASE + (r))
+#define prcm_writel(v, r) __raw_writel((v), OMAP24XX_PRCM_VBASE + (r))
+
+static u32 pmdomain_get_wakeup_dependencies(int domain_offset)
+{
+ return prcm_readl(domain_offset + PM_WKDEP_OFFSET);
+}
+
+static void pmdomain_set_wakeup_dependencies(u32 state, int domain_offset)
+{
+ prcm_writel(state, domain_offset + PM_WKDEP_OFFSET);
+}
+
+static u32 pmdomain_get_powerstate(int domain_offset)
+{
+ return prcm_readl(domain_offset + PM_PWSTCTRL_OFFSET);
+}
+
+static void pmdomain_set_powerstate(u32 state, int domain_offset)
+{
+ prcm_writel(state, domain_offset + PM_PWSTCTRL_OFFSET);
+}
+
+static u32 pmdomain_get_clock_autocontrol(int domain_offset)
+{
+ return prcm_readl(domain_offset + CM_CLKSTCTRL_OFFSET);
+}
+
+static void pmdomain_set_clock_autocontrol(u32 state, int domain_offset)
+{
+ prcm_writel(state, domain_offset + CM_CLKSTCTRL_OFFSET);
+}
+
+static u32 pmdomain_get_clock_autoidle1(int domain_offset)
+{
+ return prcm_readl(domain_offset + CM_AUTOIDLE1_OFFSET);
+}
+
+/* Core domain only */
+static u32 pmdomain_get_clock_autoidle2(int domain_offset)
+{
+ return prcm_readl(domain_offset + CM_AUTOIDLE2_OFFSET);
+}
+
+/* Core domain only */
+static u32 pmdomain_get_clock_autoidle3(int domain_offset)
+{
+ return prcm_readl(domain_offset + CM_AUTOIDLE3_OFFSET);
+}
+
+/* Core domain only */
+static u32 pmdomain_get_clock_autoidle4(int domain_offset)
+{
+ return prcm_readl(domain_offset + CM_AUTOIDLE4_OFFSET);
+}
+
+static void pmdomain_set_clock_autoidle1(u32 state, int domain_offset)
+{
+ prcm_writel(state, CM_AUTOIDLE1_OFFSET + domain_offset);
+}
+
+/* Core domain only */
+static void pmdomain_set_clock_autoidle2(u32 state, int domain_offset)
+{
+ prcm_writel(state, CM_AUTOIDLE2_OFFSET + domain_offset);
+}
+
+/* Core domain only */
+static void pmdomain_set_clock_autoidle3(u32 state, int domain_offset)
+{
+ prcm_writel(state, CM_AUTOIDLE3_OFFSET + domain_offset);
+}
+
+/* Core domain only */
+static void pmdomain_set_clock_autoidle4(u32 state, int domain_offset)
+{
+ prcm_writel(state, CM_AUTOIDLE4_OFFSET + domain_offset);
+}
+
+/*
+ * Configures power management domains to idle clocks automatically.
+ */
+void pmdomain_set_autoidle(void)
+{
+ u32 val;
+
+ /* Set PLL auto stop for 54M, 96M & DPLL */
+ pmdomain_set_clock_autoidle1(AUTO_54M(AUTO_STOPPED) |
+ AUTO_96M(AUTO_STOPPED) |
+ AUTO_DPLL(AUTO_STOPPED), PM_PLL_OFFSET);
+
+ /* External clock input control
+ * REVISIT: Should this be in clock framework?
+ */
+ PRCM_CLKSRC_CTRL |= (0x3 << 3);
+
+ /* Configure number of 32KHz clock cycles for sys_clk */
+ PRCM_CLKSSETUP = 0x00ff;
+
+ /* Configure automatic voltage transition */
+ PRCM_VOLTSETUP = 0;
+ val = PRCM_VOLTCTRL;
+ val &= ~(SETOFF_LEVEL(0x3) | VOLT_LEVEL(0x3));
+ val |= SETOFF_LEVEL(1) | VOLT_LEVEL(1) | AUTO_EXTVOLT;
+ PRCM_VOLTCTRL = val;
+
+ /* Disable emulation tools functional clock */
+ PRCM_CLKEMUL_CTRL = 0x0;
+
+ /* Set core memory retention state */
+ val = pmdomain_get_powerstate(PM_CORE_OFFSET);
+ if (cpu_is_omap2420()) {
+ val &= ~(0x7 << 3);
+ val |= (MEM3RETSTATE | MEM2RETSTATE | MEM1RETSTATE);
+ } else {
+ val &= ~(0xf << 3);
+ val |= (MEM4RETSTATE | MEM3RETSTATE | MEM2RETSTATE |
+ MEM1RETSTATE);
+ }
+ pmdomain_set_powerstate(val, PM_CORE_OFFSET);
+
+ /* OCP interface smart idle. REVISIT: Enable autoidle bit0 ? */
+ val = SMS_SYSCONFIG;
+ val &= ~(0x3 << 3);
+ val |= (0x2 << 3) | (1 << 0);
+ SMS_SYSCONFIG |= val;
+
+ val = SDRC_SYSCONFIG;
+ val &= ~(0x3 << 3);
+ val |= (0x2 << 3);
+ SDRC_SYSCONFIG = val;
+
+ /* Configure L3 interface for smart idle.
+ * REVISIT: Enable autoidle bit0 ?
+ */
+ val = GPMC_SYSCONFIG;
+ val &= ~(0x3 << 3);
+ val |= (0x2 << 3) | (1 << 0);
+ GPMC_SYSCONFIG = val;
+
+ pmdomain_set_powerstate(LOGICRETSTATE | POWERSTATE_RETENTION,
+ PM_MPU_OFFSET);
+ pmdomain_set_powerstate(POWERSTATE_RETENTION, PM_CORE_OFFSET);
+ if (!cpu_is_omap2420())
+ pmdomain_set_powerstate(POWERSTATE_RETENTION, PM_MDM_OFFSET);
+
+ /* Assume suspend function has saved the state for DSP and GFX */
+ pmdomain_set_powerstate(FORCESTATE | POWERSTATE_OFF, PM_DSP_OFFSET);
+ pmdomain_set_powerstate(FORCESTATE | POWERSTATE_OFF, PM_GFX_OFFSET);
+
+#if 0
+ /* REVISIT: Internal USB needs special handling */
+ force_standby_usb();
+ if (cpu_is_omap2430())
+ force_hsmmc();
+ sdram_self_refresh_on_idle_req(1);
+#endif
+
+ /* Enable clock auto control for all domains.
+ * Note that CORE domain includes also DSS, L4 & L3.
+ */
+ pmdomain_set_clock_autocontrol(AUTOSTAT_MPU, PM_MPU_OFFSET);
+ pmdomain_set_clock_autocontrol(AUTOSTAT_GFX, PM_GFX_OFFSET);
+ pmdomain_set_clock_autocontrol(AUTOSTAT_DSS | AUTOSTAT_L4 | AUTOSTAT_L3,
+ PM_CORE_OFFSET);
+ if (cpu_is_omap2420())
+ pmdomain_set_clock_autocontrol(AUTOSTAT_IVA | AUTOSTAT_DSP,
+ PM_DSP_OFFSET);
+ else {
+ pmdomain_set_clock_autocontrol(AUTOSTAT_DSP, PM_DSP_OFFSET);
+ pmdomain_set_clock_autocontrol(AUTOSTAT_MDM, PM_MDM_OFFSET);
+ }
+
+ /* Enable clock autoidle for all domains */
+ pmdomain_set_clock_autoidle1(0x2, PM_DSP_OFFSET);
+ if (cpu_is_omap2420()) {
+ pmdomain_set_clock_autoidle1(0xfffffff9, PM_CORE_OFFSET);
+ pmdomain_set_clock_autoidle2(0x7, PM_CORE_OFFSET);
+ pmdomain_set_clock_autoidle1(0x3f, PM_WKUP_OFFSET);
+ } else {
+ pmdomain_set_clock_autoidle1(0xeafffff1, PM_CORE_OFFSET);
+ pmdomain_set_clock_autoidle2(0xfff, PM_CORE_OFFSET);
+ pmdomain_set_clock_autoidle1(0x7f, PM_WKUP_OFFSET);
+ pmdomain_set_clock_autoidle1(0x3, PM_MDM_OFFSET);
+ }
+ pmdomain_set_clock_autoidle3(0x7, PM_CORE_OFFSET);
+ pmdomain_set_clock_autoidle4(0x1f, PM_CORE_OFFSET);
+}
+
+/*
+ * Initializes power domains by removing wake-up dependencies and powering
+ * down DSP and GFX. Gets called from PM init. Note that DSP and IVA code
+ * must re-enable DSP and GFX when used.
+ */
+void __init pmdomain_init(void)
+{
+ /* Remove all domain wakeup dependencies */
+ pmdomain_set_wakeup_dependencies(EN_WKUP | EN_CORE, PM_MPU_OFFSET);
+ pmdomain_set_wakeup_dependencies(0, PM_DSP_OFFSET);
+ pmdomain_set_wakeup_dependencies(0, PM_GFX_OFFSET);
+ pmdomain_set_wakeup_dependencies(EN_WKUP | EN_MPU, PM_CORE_OFFSET);
+ if (cpu_is_omap2430())
+ pmdomain_set_wakeup_dependencies(0, PM_MDM_OFFSET);
+
+ /* Power down DSP and GFX */
+ pmdomain_set_powerstate(POWERSTATE_OFF | FORCESTATE, PM_DSP_OFFSET);
+ pmdomain_set_powerstate(POWERSTATE_OFF | FORCESTATE, PM_GFX_OFFSET);
+}
#include <linux/interrupt.h>
#include <linux/sysfs.h>
#include <linux/module.h>
+#include <linux/delay.h>
#include <asm/io.h>
#include <asm/irq.h>
#include <asm/arch/sram.h>
#include <asm/arch/pm.h>
+#include "prcm-regs.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();
return error;
}
+#define INT0_WAKE_MASK (OMAP_IRQ_BIT(INT_24XX_GPIO_BANK1) | \
+ OMAP_IRQ_BIT(INT_24XX_GPIO_BANK2) | \
+ OMAP_IRQ_BIT(INT_24XX_GPIO_BANK3))
+
+#define INT1_WAKE_MASK (OMAP_IRQ_BIT(INT_24XX_GPIO_BANK4))
+
+#define INT2_WAKE_MASK (OMAP_IRQ_BIT(INT_24XX_UART1_IRQ) | \
+ OMAP_IRQ_BIT(INT_24XX_UART2_IRQ) | \
+ OMAP_IRQ_BIT(INT_24XX_UART3_IRQ))
+
+#define preg(reg) printk("%s\t(0x%p):\t0x%08x\n", #reg, ®, reg);
+
+static void omap2_pm_debug(char * desc)
+{
+ printk("%s:\n", desc);
+
+ preg(CM_CLKSTCTRL_MPU);
+ preg(CM_CLKSTCTRL_CORE);
+ preg(CM_CLKSTCTRL_GFX);
+ preg(CM_CLKSTCTRL_DSP);
+ preg(CM_CLKSTCTRL_MDM);
+
+ preg(PM_PWSTCTRL_MPU);
+ preg(PM_PWSTCTRL_CORE);
+ preg(PM_PWSTCTRL_GFX);
+ preg(PM_PWSTCTRL_DSP);
+ preg(PM_PWSTCTRL_MDM);
+
+ preg(PM_PWSTST_MPU);
+ preg(PM_PWSTST_CORE);
+ preg(PM_PWSTST_GFX);
+ preg(PM_PWSTST_DSP);
+ preg(PM_PWSTST_MDM);
+
+ preg(CM_AUTOIDLE1_CORE);
+ preg(CM_AUTOIDLE2_CORE);
+ preg(CM_AUTOIDLE3_CORE);
+ preg(CM_AUTOIDLE4_CORE);
+ preg(CM_AUTOIDLE_WKUP);
+ preg(CM_AUTOIDLE_PLL);
+ preg(CM_AUTOIDLE_DSP);
+ preg(CM_AUTOIDLE_MDM);
+
+ preg(CM_ICLKEN1_CORE);
+ preg(CM_ICLKEN2_CORE);
+ preg(CM_ICLKEN3_CORE);
+ preg(CM_ICLKEN4_CORE);
+ preg(CM_ICLKEN_GFX);
+ preg(CM_ICLKEN_WKUP);
+ preg(CM_ICLKEN_DSP);
+ preg(CM_ICLKEN_MDM);
+
+ preg(CM_IDLEST1_CORE);
+ preg(CM_IDLEST2_CORE);
+ preg(CM_IDLEST3_CORE);
+ preg(CM_IDLEST4_CORE);
+ preg(CM_IDLEST_GFX);
+ preg(CM_IDLEST_WKUP);
+ preg(CM_IDLEST_CKGEN);
+ preg(CM_IDLEST_DSP);
+ preg(CM_IDLEST_MDM);
+
+ preg(RM_RSTST_MPU);
+ preg(RM_RSTST_GFX);
+ preg(RM_RSTST_WKUP);
+ preg(RM_RSTST_DSP);
+ preg(RM_RSTST_MDM);
+
+ preg(PM_WKDEP_MPU);
+ preg(PM_WKDEP_CORE);
+ preg(PM_WKDEP_GFX);
+ preg(PM_WKDEP_DSP);
+ preg(PM_WKDEP_MDM);
+
+ preg(CM_FCLKEN_WKUP);
+ preg(CM_ICLKEN_WKUP);
+ preg(CM_IDLEST_WKUP);
+ preg(CM_AUTOIDLE_WKUP);
+ preg(CM_CLKSEL_WKUP);
+
+ preg(PM_WKEN_WKUP);
+ preg(PM_WKST_WKUP);
+}
+
+static inline void omap2_pm_save_registers(void)
+{
+ /* Save interrupt registers */
+ OMAP24XX_SAVE(INTC_MIR0);
+ OMAP24XX_SAVE(INTC_MIR1);
+ OMAP24XX_SAVE(INTC_MIR2);
+
+ /* Save power control registers */
+ OMAP24XX_SAVE(CM_CLKSTCTRL_MPU);
+ OMAP24XX_SAVE(CM_CLKSTCTRL_CORE);
+ OMAP24XX_SAVE(CM_CLKSTCTRL_GFX);
+ OMAP24XX_SAVE(CM_CLKSTCTRL_DSP);
+ OMAP24XX_SAVE(CM_CLKSTCTRL_MDM);
+
+ /* Save power state registers */
+ OMAP24XX_SAVE(PM_PWSTCTRL_MPU);
+ OMAP24XX_SAVE(PM_PWSTCTRL_CORE);
+ OMAP24XX_SAVE(PM_PWSTCTRL_GFX);
+ OMAP24XX_SAVE(PM_PWSTCTRL_DSP);
+ OMAP24XX_SAVE(PM_PWSTCTRL_MDM);
+
+ /* Save autoidle registers */
+ OMAP24XX_SAVE(CM_AUTOIDLE1_CORE);
+ OMAP24XX_SAVE(CM_AUTOIDLE2_CORE);
+ OMAP24XX_SAVE(CM_AUTOIDLE3_CORE);
+ OMAP24XX_SAVE(CM_AUTOIDLE4_CORE);
+ OMAP24XX_SAVE(CM_AUTOIDLE_WKUP);
+ OMAP24XX_SAVE(CM_AUTOIDLE_PLL);
+ OMAP24XX_SAVE(CM_AUTOIDLE_DSP);
+ OMAP24XX_SAVE(CM_AUTOIDLE_MDM);
+
+ /* Save idle state registers */
+ OMAP24XX_SAVE(CM_IDLEST1_CORE);
+ OMAP24XX_SAVE(CM_IDLEST2_CORE);
+ OMAP24XX_SAVE(CM_IDLEST3_CORE);
+ OMAP24XX_SAVE(CM_IDLEST4_CORE);
+ OMAP24XX_SAVE(CM_IDLEST_GFX);
+ OMAP24XX_SAVE(CM_IDLEST_WKUP);
+ OMAP24XX_SAVE(CM_IDLEST_CKGEN);
+ OMAP24XX_SAVE(CM_IDLEST_DSP);
+ OMAP24XX_SAVE(CM_IDLEST_MDM);
+
+ /* Save clock registers */
+ OMAP24XX_SAVE(CM_FCLKEN1_CORE);
+ OMAP24XX_SAVE(CM_FCLKEN2_CORE);
+ OMAP24XX_SAVE(CM_ICLKEN1_CORE);
+ OMAP24XX_SAVE(CM_ICLKEN2_CORE);
+ OMAP24XX_SAVE(CM_ICLKEN3_CORE);
+ OMAP24XX_SAVE(CM_ICLKEN4_CORE);
+}
+
+static inline void omap2_pm_restore_registers(void)
+{
+ /* Restore clock state registers */
+ OMAP24XX_RESTORE(CM_CLKSTCTRL_MPU);
+ OMAP24XX_RESTORE(CM_CLKSTCTRL_CORE);
+ OMAP24XX_RESTORE(CM_CLKSTCTRL_GFX);
+ OMAP24XX_RESTORE(CM_CLKSTCTRL_DSP);
+ OMAP24XX_RESTORE(CM_CLKSTCTRL_MDM);
+
+ /* Restore power state registers */
+ OMAP24XX_RESTORE(PM_PWSTCTRL_MPU);
+ OMAP24XX_RESTORE(PM_PWSTCTRL_CORE);
+ OMAP24XX_RESTORE(PM_PWSTCTRL_GFX);
+ OMAP24XX_RESTORE(PM_PWSTCTRL_DSP);
+ OMAP24XX_RESTORE(PM_PWSTCTRL_MDM);
+
+ /* Restore idle state registers */
+ OMAP24XX_RESTORE(CM_IDLEST1_CORE);
+ OMAP24XX_RESTORE(CM_IDLEST2_CORE);
+ OMAP24XX_RESTORE(CM_IDLEST3_CORE);
+ OMAP24XX_RESTORE(CM_IDLEST4_CORE);
+ OMAP24XX_RESTORE(CM_IDLEST_GFX);
+ OMAP24XX_RESTORE(CM_IDLEST_WKUP);
+ OMAP24XX_RESTORE(CM_IDLEST_CKGEN);
+ OMAP24XX_RESTORE(CM_IDLEST_DSP);
+ OMAP24XX_RESTORE(CM_IDLEST_MDM);
+
+ /* Restore autoidle registers */
+ OMAP24XX_RESTORE(CM_AUTOIDLE1_CORE);
+ OMAP24XX_RESTORE(CM_AUTOIDLE2_CORE);
+ OMAP24XX_RESTORE(CM_AUTOIDLE3_CORE);
+ OMAP24XX_RESTORE(CM_AUTOIDLE4_CORE);
+ OMAP24XX_RESTORE(CM_AUTOIDLE_WKUP);
+ OMAP24XX_RESTORE(CM_AUTOIDLE_PLL);
+ OMAP24XX_RESTORE(CM_AUTOIDLE_DSP);
+ OMAP24XX_RESTORE(CM_AUTOIDLE_MDM);
+
+ /* Restore clock registers */
+ OMAP24XX_RESTORE(CM_FCLKEN1_CORE);
+ OMAP24XX_RESTORE(CM_FCLKEN2_CORE);
+ OMAP24XX_RESTORE(CM_ICLKEN1_CORE);
+ OMAP24XX_RESTORE(CM_ICLKEN2_CORE);
+ OMAP24XX_RESTORE(CM_ICLKEN3_CORE);
+ OMAP24XX_RESTORE(CM_ICLKEN4_CORE);
+
+ /* REVISIT: Clear interrupts here */
+
+ /* Restore interrupt registers */
+ OMAP24XX_RESTORE(INTC_MIR0);
+ OMAP24XX_RESTORE(INTC_MIR1);
+ OMAP24XX_RESTORE(INTC_MIR2);
+}
+
+static int omap2_pm_suspend(void)
+{
+ int processor_type = 0;
+
+ /* REVISIT: 0x21 or 0x26? */
+ if (cpu_is_omap2420())
+ processor_type = 0x21;
+
+ if (!processor_type)
+ return -ENOTSUPP;
+
+ local_irq_disable();
+ local_fiq_disable();
+
+ omap2_pm_save_registers();
+
+ /* Disable interrupts except for the wake events */
+ INTC_MIR_SET0 = 0xffffffff & ~INT0_WAKE_MASK;
+ INTC_MIR_SET1 = 0xffffffff & ~INT1_WAKE_MASK;
+ INTC_MIR_SET2 = 0xffffffff & ~INT2_WAKE_MASK;
+
+ pmdomain_set_autoidle();
+
+ /* Clear old wake-up events */
+ PM_WKST1_CORE = 0;
+ PM_WKST2_CORE = 0;
+ PM_WKST_WKUP = 0;
+
+ /* Enable wake-up events */
+ PM_WKEN1_CORE = (1 << 22) | (1 << 21); /* UART1 & 2 */
+ PM_WKEN2_CORE = (1 << 2); /* UART3 */
+ PM_WKEN_WKUP = (1 << 2) | (1 << 0); /* GPIO & GPT1 */
+
+ /* Disable clocks except for CM_ICLKEN2_CORE. It gets disabled
+ * in the SRAM suspend code */
+ CM_FCLKEN1_CORE = 0;
+ CM_FCLKEN2_CORE = 0;
+ CM_ICLKEN1_CORE = 0;
+ CM_ICLKEN3_CORE = 0;
+ CM_ICLKEN4_CORE = 0;
+
+ omap2_pm_debug("Status before suspend");
+
+ /* Must wait for serial buffers to clear */
+ mdelay(200);
+
+ /* Jump to SRAM suspend code
+ * REVISIT: When is this SDRC_DLLB_CTRL?
+ */
+ omap2_sram_suspend(SDRC_DLLA_CTRL, processor_type);
+
+ /* Back from sleep */
+ omap2_pm_restore_registers();
+
+ local_fiq_enable();
+ local_irq_enable();
+
+ return 0;
+}
+
static int omap2_pm_enter(suspend_state_t state)
{
+ int ret = 0;
+
switch (state)
{
case PM_SUSPEND_STANDBY:
case PM_SUSPEND_MEM:
- /* FIXME: Add suspend */
+ ret = omap2_pm_suspend();
break;
-
case PM_SUSPEND_DISK:
- return -ENOTSUPP;
-
+ ret = -ENOTSUPP;
+ break;
default:
- return -EINVAL;
+ ret = -EINVAL;
}
- return 0;
+ return ret;
}
static int omap2_pm_finish(suspend_state_t state)
pm_set_ops(&omap_pm_ops);
pm_idle = omap2_pm_idle;
+ pmdomain_init();
+
return 0;
}
#define INT_24XX_MCBSP1_IRQ_RX 60
#define INT_24XX_MCBSP2_IRQ_TX 62
#define INT_24XX_MCBSP2_IRQ_RX 63
+#define INT_24XX_UART1_IRQ 72
+#define INT_24XX_UART2_IRQ 73
#define INT_24XX_UART3_IRQ 74
/* Max. 128 level 2 IRQs (OMAP1610), 192 GPIOs (OMAP730) and
OMAP24XX_SLEEP_SAVE_INTC_MIR0,
OMAP24XX_SLEEP_SAVE_INTC_MIR1,
OMAP24XX_SLEEP_SAVE_INTC_MIR2,
+
+ OMAP24XX_SLEEP_SAVE_CM_CLKSTCTRL_MPU,
+ OMAP24XX_SLEEP_SAVE_CM_CLKSTCTRL_CORE,
+ OMAP24XX_SLEEP_SAVE_CM_CLKSTCTRL_GFX,
+ OMAP24XX_SLEEP_SAVE_CM_CLKSTCTRL_DSP,
+ OMAP24XX_SLEEP_SAVE_CM_CLKSTCTRL_MDM,
+
+ OMAP24XX_SLEEP_SAVE_PM_PWSTCTRL_MPU,
+ OMAP24XX_SLEEP_SAVE_PM_PWSTCTRL_CORE,
+ OMAP24XX_SLEEP_SAVE_PM_PWSTCTRL_GFX,
+ OMAP24XX_SLEEP_SAVE_PM_PWSTCTRL_DSP,
+ OMAP24XX_SLEEP_SAVE_PM_PWSTCTRL_MDM,
+
+ OMAP24XX_SLEEP_SAVE_CM_IDLEST1_CORE,
+ OMAP24XX_SLEEP_SAVE_CM_IDLEST2_CORE,
+ OMAP24XX_SLEEP_SAVE_CM_IDLEST3_CORE,
+ OMAP24XX_SLEEP_SAVE_CM_IDLEST4_CORE,
+ OMAP24XX_SLEEP_SAVE_CM_IDLEST_GFX,
+ OMAP24XX_SLEEP_SAVE_CM_IDLEST_WKUP,
+ OMAP24XX_SLEEP_SAVE_CM_IDLEST_CKGEN,
+ OMAP24XX_SLEEP_SAVE_CM_IDLEST_DSP,
+ OMAP24XX_SLEEP_SAVE_CM_IDLEST_MDM,
+
+ OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE1_CORE,
+ OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE2_CORE,
+ OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE3_CORE,
+ OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE4_CORE,
+ OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE_WKUP,
+ OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE_PLL,
+ OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE_DSP,
+ OMAP24XX_SLEEP_SAVE_CM_AUTOIDLE_MDM,
+
OMAP24XX_SLEEP_SAVE_CM_FCLKEN1_CORE,
OMAP24XX_SLEEP_SAVE_CM_FCLKEN2_CORE,
OMAP24XX_SLEEP_SAVE_CM_ICLKEN1_CORE,
OMAP24XX_SLEEP_SAVE_CM_ICLKEN2_CORE,
+ OMAP24XX_SLEEP_SAVE_CM_ICLKEN3_CORE,
OMAP24XX_SLEEP_SAVE_CM_ICLKEN4_CORE,
OMAP24XX_SLEEP_SAVE_GPIO1_IRQENABLE1,
OMAP24XX_SLEEP_SAVE_GPIO2_IRQENABLE1,
projects / linux-drm-fsl-dcu.git / commitdiff