* Tony Lindgren <tony@atomide.com>
* Jouni Hogander
*
+ * Copyright (C) 2007 Texas Instruments, Inc.
+ * Rajendra Nayak <rnayak@ti.com>
+ *
* Copyright (C) 2005 Texas Instruments, Inc.
* Richard Woodruff <r-woodruff2@ti.com>
*
#include <linux/list.h>
#include <linux/err.h>
#include <linux/gpio.h>
+#include <linux/clk.h>
+#include <linux/delay.h>
+#include <linux/slab.h>
#include <plat/sram.h>
#include <plat/clockdomain.h>
#include <plat/powerdomain.h>
#include <plat/control.h>
#include <plat/serial.h>
+#include <plat/sdrc.h>
+#include <plat/prcm.h>
+#include <plat/gpmc.h>
+#include <plat/dma.h>
+#include <plat/dmtimer.h>
+
+#include <asm/tlbflush.h>
#include "cm.h"
#include "cm-regbits-34xx.h"
#include "prm.h"
#include "pm.h"
+#include "sdrc.h"
+
+/* Scratchpad offsets */
+#define OMAP343X_TABLE_ADDRESS_OFFSET 0x31
+#define OMAP343X_TABLE_VALUE_OFFSET 0x30
+#define OMAP343X_CONTROL_REG_VALUE_OFFSET 0x32
+
+u32 enable_off_mode;
+u32 sleep_while_idle;
+u32 wakeup_timer_seconds;
+u32 wakeup_timer_milliseconds;
struct power_state {
struct powerdomain *pwrdm;
static void (*_omap_sram_idle)(u32 *addr, int save_state);
-static struct powerdomain *mpu_pwrdm;
+static int (*_omap_save_secure_sram)(u32 *addr);
+
+static struct powerdomain *mpu_pwrdm, *neon_pwrdm;
+static struct powerdomain *core_pwrdm, *per_pwrdm;
+static struct powerdomain *cam_pwrdm;
+
+static inline void omap3_per_save_context(void)
+{
+ omap_gpio_save_context();
+}
+
+static inline void omap3_per_restore_context(void)
+{
+ omap_gpio_restore_context();
+}
+
+static void omap3_enable_io_chain(void)
+{
+ int timeout = 0;
+
+ if (omap_rev() >= OMAP3430_REV_ES3_1) {
+ prm_set_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD,
+ PM_WKEN);
+ /* Do a readback to assure write has been done */
+ prm_read_mod_reg(WKUP_MOD, PM_WKEN);
+
+ while (!(prm_read_mod_reg(WKUP_MOD, PM_WKST) &
+ OMAP3430_ST_IO_CHAIN_MASK)) {
+ timeout++;
+ if (timeout > 1000) {
+ printk(KERN_ERR "Wake up daisy chain "
+ "activation failed.\n");
+ return;
+ }
+ prm_set_mod_reg_bits(OMAP3430_ST_IO_CHAIN_MASK,
+ WKUP_MOD, PM_WKST);
+ }
+ }
+}
+
+static void omap3_disable_io_chain(void)
+{
+ if (omap_rev() >= OMAP3430_REV_ES3_1)
+ prm_clear_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD,
+ PM_WKEN);
+}
+
+static void omap3_core_save_context(void)
+{
+ u32 control_padconf_off;
+
+ /* Save the padconf registers */
+ control_padconf_off = omap_ctrl_readl(OMAP343X_CONTROL_PADCONF_OFF);
+ control_padconf_off |= START_PADCONF_SAVE;
+ omap_ctrl_writel(control_padconf_off, OMAP343X_CONTROL_PADCONF_OFF);
+ /* wait for the save to complete */
+ while (!(omap_ctrl_readl(OMAP343X_CONTROL_GENERAL_PURPOSE_STATUS)
+ & PADCONF_SAVE_DONE))
+ udelay(1);
+
+ /*
+ * Force write last pad into memory, as this can fail in some
+ * cases according to erratas 1.157, 1.185
+ */
+ omap_ctrl_writel(omap_ctrl_readl(OMAP343X_PADCONF_ETK_D14),
+ OMAP343X_CONTROL_MEM_WKUP + 0x2a0);
+
+ /* Save the Interrupt controller context */
+ omap_intc_save_context();
+ /* Save the GPMC context */
+ omap3_gpmc_save_context();
+ /* Save the system control module context, padconf already save above*/
+ omap3_control_save_context();
+ omap_dma_global_context_save();
+}
+
+static void omap3_core_restore_context(void)
+{
+ /* Restore the control module context, padconf restored by h/w */
+ omap3_control_restore_context();
+ /* Restore the GPMC context */
+ omap3_gpmc_restore_context();
+ /* Restore the interrupt controller context */
+ omap_intc_restore_context();
+ omap_dma_global_context_restore();
+}
+
+/*
+ * FIXME: This function should be called before entering off-mode after
+ * OMAP3 secure services have been accessed. Currently it is only called
+ * once during boot sequence, but this works as we are not using secure
+ * services.
+ */
+static void omap3_save_secure_ram_context(u32 target_mpu_state)
+{
+ u32 ret;
+
+ if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
+ /*
+ * MPU next state must be set to POWER_ON temporarily,
+ * otherwise the WFI executed inside the ROM code
+ * will hang the system.
+ */
+ pwrdm_set_next_pwrst(mpu_pwrdm, PWRDM_POWER_ON);
+ ret = _omap_save_secure_sram((u32 *)
+ __pa(omap3_secure_ram_storage));
+ pwrdm_set_next_pwrst(mpu_pwrdm, target_mpu_state);
+ /* Following is for error tracking, it should not happen */
+ if (ret) {
+ printk(KERN_ERR "save_secure_sram() returns %08x\n",
+ ret);
+ while (1)
+ ;
+ }
+ }
+}
/*
* PRCM Interrupt Handler Helper Function
*/
static irqreturn_t prcm_interrupt_handler (int irq, void *dev_id)
{
- u32 irqstatus_mpu;
+ u32 irqenable_mpu, irqstatus_mpu;
int c = 0;
- do {
- irqstatus_mpu = prm_read_mod_reg(OCP_MOD,
- OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
+ irqenable_mpu = prm_read_mod_reg(OCP_MOD,
+ OMAP3_PRM_IRQENABLE_MPU_OFFSET);
+ irqstatus_mpu = prm_read_mod_reg(OCP_MOD,
+ OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
+ irqstatus_mpu &= irqenable_mpu;
- if (irqstatus_mpu & (OMAP3430_WKUP_ST | OMAP3430_IO_ST)) {
+ do {
+ if (irqstatus_mpu & (OMAP3430_WKUP_ST_MASK |
+ OMAP3430_IO_ST_MASK)) {
c = _prcm_int_handle_wakeup();
/*
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));
+ irqstatus_mpu = prm_read_mod_reg(OCP_MOD,
+ OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
+ irqstatus_mpu &= irqenable_mpu;
+
+ } while (irqstatus_mpu);
return IRQ_HANDLED;
}
-static void omap_sram_idle(void)
+static void restore_control_register(u32 val)
+{
+ __asm__ __volatile__ ("mcr p15, 0, %0, c1, c0, 0" : : "r" (val));
+}
+
+/* Function to restore the table entry that was modified for enabling MMU */
+static void restore_table_entry(void)
+{
+ u32 *scratchpad_address;
+ u32 previous_value, control_reg_value;
+ u32 *address;
+
+ scratchpad_address = OMAP2_L4_IO_ADDRESS(OMAP343X_SCRATCHPAD);
+
+ /* Get address of entry that was modified */
+ address = (u32 *)__raw_readl(scratchpad_address +
+ OMAP343X_TABLE_ADDRESS_OFFSET);
+ /* Get the previous value which needs to be restored */
+ previous_value = __raw_readl(scratchpad_address +
+ OMAP343X_TABLE_VALUE_OFFSET);
+ address = __va(address);
+ *address = previous_value;
+ flush_tlb_all();
+ control_reg_value = __raw_readl(scratchpad_address
+ + OMAP343X_CONTROL_REG_VALUE_OFFSET);
+ /* This will enable caches and prediction */
+ restore_control_register(control_reg_value);
+}
+
+void omap_sram_idle(void)
{
/* Variable to tell what needs to be saved and restored
* in omap_sram_idle*/
/* 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;
+ int save_state = 0;
+ int mpu_next_state = PWRDM_POWER_ON;
+ int per_next_state = PWRDM_POWER_ON;
+ int core_next_state = PWRDM_POWER_ON;
+ int core_prev_state, per_prev_state;
+ u32 sdrc_pwr = 0;
+ int per_state_modified = 0;
if (!_omap_sram_idle)
return;
+ pwrdm_clear_all_prev_pwrst(mpu_pwrdm);
+ pwrdm_clear_all_prev_pwrst(neon_pwrdm);
+ pwrdm_clear_all_prev_pwrst(core_pwrdm);
+ pwrdm_clear_all_prev_pwrst(per_pwrdm);
+
mpu_next_state = pwrdm_read_next_pwrst(mpu_pwrdm);
switch (mpu_next_state) {
+ case PWRDM_POWER_ON:
case PWRDM_POWER_RET:
/* No need to save context */
save_state = 0;
break;
+ case PWRDM_POWER_OFF:
+ save_state = 3;
+ break;
default:
/* Invalid state */
printk(KERN_ERR "Invalid mpu state in sram_idle\n");
}
pwrdm_pre_transition();
- omap2_gpio_prepare_for_retention();
- omap_uart_prepare_idle(0);
- omap_uart_prepare_idle(1);
- omap_uart_prepare_idle(2);
+ /* NEON control */
+ if (pwrdm_read_pwrst(neon_pwrdm) == PWRDM_POWER_ON)
+ pwrdm_set_next_pwrst(neon_pwrdm, mpu_next_state);
+
+ /* Enable IO-PAD and IO-CHAIN wakeups */
+ per_next_state = pwrdm_read_next_pwrst(per_pwrdm);
+ core_next_state = pwrdm_read_next_pwrst(core_pwrdm);
+ if (per_next_state < PWRDM_POWER_ON ||
+ core_next_state < PWRDM_POWER_ON) {
+ prm_set_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, PM_WKEN);
+ omap3_enable_io_chain();
+ }
- _omap_sram_idle(NULL, save_state);
- cpu_init();
+ /* PER */
+ if (per_next_state < PWRDM_POWER_ON) {
+ omap_uart_prepare_idle(2);
+ omap2_gpio_prepare_for_idle(per_next_state);
+ if (per_next_state == PWRDM_POWER_OFF) {
+ if (core_next_state == PWRDM_POWER_ON) {
+ per_next_state = PWRDM_POWER_RET;
+ pwrdm_set_next_pwrst(per_pwrdm, per_next_state);
+ per_state_modified = 1;
+ } else
+ omap3_per_save_context();
+ }
+ }
- omap_uart_resume_idle(2);
- omap_uart_resume_idle(1);
- omap_uart_resume_idle(0);
- omap2_gpio_resume_after_retention();
+ if (pwrdm_read_pwrst(cam_pwrdm) == PWRDM_POWER_ON)
+ omap2_clkdm_deny_idle(mpu_pwrdm->pwrdm_clkdms[0]);
- pwrdm_post_transition();
+ /* CORE */
+ if (core_next_state < PWRDM_POWER_ON) {
+ omap_uart_prepare_idle(0);
+ omap_uart_prepare_idle(1);
+ if (core_next_state == PWRDM_POWER_OFF) {
+ omap3_core_save_context();
+ omap3_prcm_save_context();
+ }
+ }
-}
+ omap3_intc_prepare_idle();
-/*
- * 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;
+ /*
+ * On EMU/HS devices ROM code restores a SRDC value
+ * from scratchpad which has automatic self refresh on timeout
+ * of AUTO_CNT = 1 enabled. This takes care of errata 1.142.
+ * Hence store/restore the SDRC_POWER register here.
+ */
+ if (omap_rev() >= OMAP3430_REV_ES3_0 &&
+ omap_type() != OMAP2_DEVICE_TYPE_GP &&
+ core_next_state == PWRDM_POWER_OFF)
+ sdrc_pwr = sdrc_read_reg(SDRC_POWER);
- 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);
-
- /* Ignore UART clocks. These are handled by UART core (serial.c) */
- fck_core1 &= ~(OMAP3430_EN_UART1 | OMAP3430_EN_UART2);
- fck_per &= ~OMAP3430_EN_UART3;
-
- if (fck_core1 | fck_core3 | fck_sgx | fck_dss |
- fck_cam | fck_per | fck_usbhost)
- return 1;
- return 0;
+ /*
+ * omap3_arm_context is the location where ARM registers
+ * get saved. The restore path then reads from this
+ * location and restores them back.
+ */
+ _omap_sram_idle(omap3_arm_context, save_state);
+ cpu_init();
+
+ /* Restore normal SDRC POWER settings */
+ if (omap_rev() >= OMAP3430_REV_ES3_0 &&
+ omap_type() != OMAP2_DEVICE_TYPE_GP &&
+ core_next_state == PWRDM_POWER_OFF)
+ sdrc_write_reg(sdrc_pwr, SDRC_POWER);
+
+ /* Restore table entry modified during MMU restoration */
+ if (pwrdm_read_prev_pwrst(mpu_pwrdm) == PWRDM_POWER_OFF)
+ restore_table_entry();
+
+ /* CORE */
+ if (core_next_state < PWRDM_POWER_ON) {
+ core_prev_state = pwrdm_read_prev_pwrst(core_pwrdm);
+ if (core_prev_state == PWRDM_POWER_OFF) {
+ omap3_core_restore_context();
+ omap3_prcm_restore_context();
+ omap3_sram_restore_context();
+ omap2_sms_restore_context();
+ }
+ omap_uart_resume_idle(0);
+ omap_uart_resume_idle(1);
+ if (core_next_state == PWRDM_POWER_OFF)
+ prm_clear_mod_reg_bits(OMAP3430_AUTO_OFF_MASK,
+ OMAP3430_GR_MOD,
+ OMAP3_PRM_VOLTCTRL_OFFSET);
+ }
+ omap3_intc_resume_idle();
+
+ /* PER */
+ if (per_next_state < PWRDM_POWER_ON) {
+ per_prev_state = pwrdm_read_prev_pwrst(per_pwrdm);
+ omap2_gpio_resume_after_idle();
+ if (per_prev_state == PWRDM_POWER_OFF)
+ omap3_per_restore_context();
+ omap_uart_resume_idle(2);
+ if (per_state_modified)
+ pwrdm_set_next_pwrst(per_pwrdm, PWRDM_POWER_OFF);
+ }
+
+ /* Disable IO-PAD and IO-CHAIN wakeup */
+ if (core_next_state < PWRDM_POWER_ON) {
+ prm_clear_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, PM_WKEN);
+ omap3_disable_io_chain();
+ }
+
+ pwrdm_post_transition();
+
+ omap2_clkdm_allow_idle(mpu_pwrdm->pwrdm_clkdms[0]);
}
-static int omap3_can_sleep(void)
+int omap3_can_sleep(void)
{
- if (!omap_uart_can_sleep())
+ if (!sleep_while_idle)
return 0;
- if (omap3_fclks_active())
+ if (!omap_uart_can_sleep())
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)
+int set_pwrdm_state(struct powerdomain *pwrdm, u32 state)
{
u32 cur_state;
int sleep_switch = 0;
if (!omap3_can_sleep())
goto out;
- if (omap_irq_pending())
+ if (omap_irq_pending() || need_resched())
goto out;
omap_sram_idle();
#ifdef CONFIG_SUSPEND
static suspend_state_t suspend_state;
+static void omap2_pm_wakeup_on_timer(u32 seconds, u32 milliseconds)
+{
+ u32 tick_rate, cycles;
+
+ if (!seconds && !milliseconds)
+ return;
+
+ tick_rate = clk_get_rate(omap_dm_timer_get_fclk(gptimer_wakeup));
+ cycles = tick_rate * seconds + tick_rate * milliseconds / 1000;
+ omap_dm_timer_stop(gptimer_wakeup);
+ omap_dm_timer_set_load_start(gptimer_wakeup, 0, 0xffffffff - cycles);
+
+ pr_info("PM: Resume timer in %u.%03u secs"
+ " (%d ticks at %d ticks/sec.)\n",
+ seconds, milliseconds, cycles, tick_rate);
+}
+
static int omap3_pm_prepare(void)
{
disable_hlt();
struct power_state *pwrst;
int state, ret = 0;
+ if (wakeup_timer_seconds || wakeup_timer_milliseconds)
+ omap2_pm_wakeup_on_timer(wakeup_timer_seconds,
+ wakeup_timer_milliseconds);
+
/* Read current next_pwrsts */
list_for_each_entry(pwrst, &pwrst_list, node)
pwrst->saved_state = pwrdm_read_next_pwrst(pwrst->pwrdm);
}
omap_uart_prepare_suspend();
+ omap3_intc_suspend();
+
omap_sram_idle();
restore:
return;
/* Reset IVA2 */
- prm_write_mod_reg(OMAP3430_RST1_IVA2 |
- OMAP3430_RST2_IVA2 |
- OMAP3430_RST3_IVA2,
- OMAP3430_IVA2_MOD, RM_RSTCTRL);
+ prm_write_mod_reg(OMAP3430_RST1_IVA2_MASK |
+ OMAP3430_RST2_IVA2_MASK |
+ OMAP3430_RST3_IVA2_MASK,
+ OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
/* Enable IVA2 clock */
- cm_write_mod_reg(OMAP3430_CM_FCLKEN_IVA2_EN_IVA2,
+ cm_write_mod_reg(OMAP3430_CM_FCLKEN_IVA2_EN_IVA2_MASK,
OMAP3430_IVA2_MOD, CM_FCLKEN);
/* Set IVA2 boot mode to 'idle' */
OMAP343X_CONTROL_IVA2_BOOTMOD);
/* Un-reset IVA2 */
- prm_write_mod_reg(0, OMAP3430_IVA2_MOD, RM_RSTCTRL);
+ prm_write_mod_reg(0, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
/* Disable IVA2 clock */
cm_write_mod_reg(0, OMAP3430_IVA2_MOD, CM_FCLKEN);
/* Reset IVA2 */
- prm_write_mod_reg(OMAP3430_RST1_IVA2 |
- OMAP3430_RST2_IVA2 |
- OMAP3430_RST3_IVA2,
- OMAP3430_IVA2_MOD, RM_RSTCTRL);
+ prm_write_mod_reg(OMAP3430_RST1_IVA2_MASK |
+ OMAP3430_RST2_IVA2_MASK |
+ OMAP3430_RST3_IVA2_MASK,
+ OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL);
}
static void __init omap3_d2d_idle(void)
omap_ctrl_writew(padconf, OMAP3_PADCONF_SAD2D_IDLEACK);
/* 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);
+ prm_write_mod_reg(OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RSTPWRON_MASK |
+ OMAP3430_RM_RSTCTRL_CORE_MODEM_SW_RST_MASK,
+ CORE_MOD, OMAP2_RM_RSTCTRL);
+ prm_write_mod_reg(0, CORE_MOD, OMAP2_RM_RSTCTRL);
}
static void __init prcm_setup_regs(void)
* Note that in the long run this should be done by clockfw
*/
cm_write_mod_reg(
- OMAP3430_AUTO_MODEM |
- 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 |
- OMAP3430_AUTO_SAD2D |
- OMAP3430_AUTO_SSI,
+ OMAP3430_AUTO_MODEM_MASK |
+ OMAP3430ES2_AUTO_MMC3_MASK |
+ OMAP3430ES2_AUTO_ICR_MASK |
+ OMAP3430_AUTO_AES2_MASK |
+ OMAP3430_AUTO_SHA12_MASK |
+ OMAP3430_AUTO_DES2_MASK |
+ OMAP3430_AUTO_MMC2_MASK |
+ OMAP3430_AUTO_MMC1_MASK |
+ OMAP3430_AUTO_MSPRO_MASK |
+ OMAP3430_AUTO_HDQ_MASK |
+ OMAP3430_AUTO_MCSPI4_MASK |
+ OMAP3430_AUTO_MCSPI3_MASK |
+ OMAP3430_AUTO_MCSPI2_MASK |
+ OMAP3430_AUTO_MCSPI1_MASK |
+ OMAP3430_AUTO_I2C3_MASK |
+ OMAP3430_AUTO_I2C2_MASK |
+ OMAP3430_AUTO_I2C1_MASK |
+ OMAP3430_AUTO_UART2_MASK |
+ OMAP3430_AUTO_UART1_MASK |
+ OMAP3430_AUTO_GPT11_MASK |
+ OMAP3430_AUTO_GPT10_MASK |
+ OMAP3430_AUTO_MCBSP5_MASK |
+ OMAP3430_AUTO_MCBSP1_MASK |
+ OMAP3430ES1_AUTO_FAC_MASK | /* This is es1 only */
+ OMAP3430_AUTO_MAILBOXES_MASK |
+ OMAP3430_AUTO_OMAPCTRL_MASK |
+ OMAP3430ES1_AUTO_FSHOSTUSB_MASK |
+ OMAP3430_AUTO_HSOTGUSB_MASK |
+ OMAP3430_AUTO_SAD2D_MASK |
+ OMAP3430_AUTO_SSI_MASK,
CORE_MOD, CM_AUTOIDLE1);
cm_write_mod_reg(
- OMAP3430_AUTO_PKA |
- OMAP3430_AUTO_AES1 |
- OMAP3430_AUTO_RNG |
- OMAP3430_AUTO_SHA11 |
- OMAP3430_AUTO_DES1,
+ OMAP3430_AUTO_PKA_MASK |
+ OMAP3430_AUTO_AES1_MASK |
+ OMAP3430_AUTO_RNG_MASK |
+ OMAP3430_AUTO_SHA11_MASK |
+ OMAP3430_AUTO_DES1_MASK,
CORE_MOD, CM_AUTOIDLE2);
if (omap_rev() > OMAP3430_REV_ES1_0) {
cm_write_mod_reg(
- OMAP3430_AUTO_MAD2D |
- OMAP3430ES2_AUTO_USBTLL,
+ OMAP3430_AUTO_MAD2D_MASK |
+ OMAP3430ES2_AUTO_USBTLL_MASK,
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 ,
+ OMAP3430_AUTO_WDT2_MASK |
+ OMAP3430_AUTO_WDT1_MASK |
+ OMAP3430_AUTO_GPIO1_MASK |
+ OMAP3430_AUTO_32KSYNC_MASK |
+ OMAP3430_AUTO_GPT12_MASK |
+ OMAP3430_AUTO_GPT1_MASK,
WKUP_MOD, CM_AUTOIDLE);
cm_write_mod_reg(
- OMAP3430_AUTO_DSS,
+ OMAP3430_AUTO_DSS_MASK,
OMAP3430_DSS_MOD,
CM_AUTOIDLE);
cm_write_mod_reg(
- OMAP3430_AUTO_CAM,
+ OMAP3430_AUTO_CAM_MASK,
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_AUTO_GPIO6_MASK |
+ OMAP3430_AUTO_GPIO5_MASK |
+ OMAP3430_AUTO_GPIO4_MASK |
+ OMAP3430_AUTO_GPIO3_MASK |
+ OMAP3430_AUTO_GPIO2_MASK |
+ OMAP3430_AUTO_WDT3_MASK |
+ OMAP3430_AUTO_UART3_MASK |
+ OMAP3430_AUTO_GPT9_MASK |
+ OMAP3430_AUTO_GPT8_MASK |
+ OMAP3430_AUTO_GPT7_MASK |
+ OMAP3430_AUTO_GPT6_MASK |
+ OMAP3430_AUTO_GPT5_MASK |
+ OMAP3430_AUTO_GPT4_MASK |
+ OMAP3430_AUTO_GPT3_MASK |
+ OMAP3430_AUTO_GPT2_MASK |
+ OMAP3430_AUTO_MCBSP4_MASK |
+ OMAP3430_AUTO_MCBSP3_MASK |
+ OMAP3430_AUTO_MCBSP2_MASK,
OMAP3430_PER_MOD,
CM_AUTOIDLE);
if (omap_rev() > OMAP3430_REV_ES1_0) {
cm_write_mod_reg(
- OMAP3430ES2_AUTO_USBHOST,
+ OMAP3430ES2_AUTO_USBHOST_MASK,
OMAP3430ES2_USBHOST_MOD,
CM_AUTOIDLE);
}
+ omap_ctrl_writel(OMAP3430_AUTOIDLE_MASK, OMAP2_CONTROL_SYSCONFIG);
+
/*
* Set all plls to autoidle. This is needed until autoidle is
* enabled by clockfw
OMAP3_PRM_CLKSRC_CTRL_OFFSET);
/* setup wakup source */
- prm_write_mod_reg(OMAP3430_EN_IO | OMAP3430_EN_GPIO1 |
- OMAP3430_EN_GPT1 | OMAP3430_EN_GPT12,
+ prm_write_mod_reg(OMAP3430_EN_IO_MASK | OMAP3430_EN_GPIO1_MASK |
+ OMAP3430_EN_GPT1_MASK | OMAP3430_EN_GPT12_MASK,
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,
+ prm_write_mod_reg(OMAP3430_GRPSEL_GPIO1_MASK |
+ OMAP3430_GRPSEL_GPT1_MASK |
+ OMAP3430_GRPSEL_GPT12_MASK,
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,
+ prm_write_mod_reg(OMAP3430_IO_EN_MASK | OMAP3430_WKUP_EN_MASK,
OCP_MOD, OMAP3_PRM_IRQENABLE_MPU_OFFSET);
+ /* Enable PM_WKEN to support DSS LPR */
+ prm_write_mod_reg(OMAP3430_PM_WKEN_DSS_EN_DSS_MASK,
+ OMAP3430_DSS_MOD, PM_WKEN);
+
/* Enable wakeups in PER */
- prm_write_mod_reg(OMAP3430_EN_GPIO2 | OMAP3430_EN_GPIO3 |
- OMAP3430_EN_GPIO4 | OMAP3430_EN_GPIO5 |
- OMAP3430_EN_GPIO6 | OMAP3430_EN_UART3,
+ prm_write_mod_reg(OMAP3430_EN_GPIO2_MASK | OMAP3430_EN_GPIO3_MASK |
+ OMAP3430_EN_GPIO4_MASK | OMAP3430_EN_GPIO5_MASK |
+ OMAP3430_EN_GPIO6_MASK | OMAP3430_EN_UART3_MASK |
+ OMAP3430_EN_MCBSP2_MASK | OMAP3430_EN_MCBSP3_MASK |
+ OMAP3430_EN_MCBSP4_MASK,
OMAP3430_PER_MOD, PM_WKEN);
/* and allow them to wake up MPU */
- prm_write_mod_reg(OMAP3430_GRPSEL_GPIO2 | OMAP3430_EN_GPIO3 |
- OMAP3430_GRPSEL_GPIO4 | OMAP3430_EN_GPIO5 |
- OMAP3430_GRPSEL_GPIO6 | OMAP3430_EN_UART3,
+ prm_write_mod_reg(OMAP3430_GRPSEL_GPIO2_MASK |
+ OMAP3430_GRPSEL_GPIO3_MASK |
+ OMAP3430_GRPSEL_GPIO4_MASK |
+ OMAP3430_GRPSEL_GPIO5_MASK |
+ OMAP3430_GRPSEL_GPIO6_MASK |
+ OMAP3430_GRPSEL_UART3_MASK |
+ OMAP3430_GRPSEL_MCBSP2_MASK |
+ OMAP3430_GRPSEL_MCBSP3_MASK |
+ OMAP3430_GRPSEL_MCBSP4_MASK,
OMAP3430_PER_MOD, OMAP3430_PM_MPUGRPSEL);
/* Don't attach IVA interrupts */
prm_write_mod_reg(0, OMAP3430_PER_MOD, OMAP3430_PM_IVAGRPSEL);
/* Clear any pending 'reset' flags */
- prm_write_mod_reg(0xffffffff, MPU_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, CORE_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, OMAP3430_PER_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, OMAP3430_EMU_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, OMAP3430_NEON_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, OMAP3430_DSS_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, OMAP3430ES2_USBHOST_MOD, RM_RSTST);
+ prm_write_mod_reg(0xffffffff, MPU_MOD, OMAP2_RM_RSTST);
+ prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP2_RM_RSTST);
+ prm_write_mod_reg(0xffffffff, OMAP3430_PER_MOD, OMAP2_RM_RSTST);
+ prm_write_mod_reg(0xffffffff, OMAP3430_EMU_MOD, OMAP2_RM_RSTST);
+ prm_write_mod_reg(0xffffffff, OMAP3430_NEON_MOD, OMAP2_RM_RSTST);
+ prm_write_mod_reg(0xffffffff, OMAP3430_DSS_MOD, OMAP2_RM_RSTST);
+ prm_write_mod_reg(0xffffffff, OMAP3430ES2_USBHOST_MOD, OMAP2_RM_RSTST);
/* Clear any pending PRCM interrupts */
prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
- /* Don't attach IVA interrupts */
- prm_write_mod_reg(0, WKUP_MOD, OMAP3430_PM_IVAGRPSEL);
- prm_write_mod_reg(0, CORE_MOD, OMAP3430_PM_IVAGRPSEL1);
- prm_write_mod_reg(0, CORE_MOD, OMAP3430ES2_PM_IVAGRPSEL3);
- prm_write_mod_reg(0, OMAP3430_PER_MOD, OMAP3430_PM_IVAGRPSEL);
+ omap3_iva_idle();
+ omap3_d2d_idle();
+}
- /* Clear any pending 'reset' flags */
- prm_write_mod_reg(0xffffffff, MPU_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, CORE_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, OMAP3430_PER_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, OMAP3430_EMU_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, OMAP3430_NEON_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, OMAP3430_DSS_MOD, RM_RSTST);
- prm_write_mod_reg(0xffffffff, OMAP3430ES2_USBHOST_MOD, RM_RSTST);
+void omap3_pm_off_mode_enable(int enable)
+{
+ struct power_state *pwrst;
+ u32 state;
- /* Clear any pending PRCM interrupts */
- prm_write_mod_reg(0, OCP_MOD, OMAP3_PRM_IRQSTATUS_MPU_OFFSET);
+ if (enable)
+ state = PWRDM_POWER_OFF;
+ else
+ state = PWRDM_POWER_RET;
- omap3_iva_idle();
- omap3_d2d_idle();
+#ifdef CONFIG_CPU_IDLE
+ omap3_cpuidle_update_states();
+#endif
+
+ list_for_each_entry(pwrst, &pwrst_list, node) {
+ pwrst->next_state = state;
+ set_pwrdm_state(pwrst->pwrdm, state);
+ }
}
int omap3_pm_get_suspend_state(struct powerdomain *pwrdm)
*/
static int __init clkdms_setup(struct clockdomain *clkdm, void *unused)
{
+ clkdm_clear_all_wkdeps(clkdm);
+ clkdm_clear_all_sleepdeps(clkdm);
+
if (clkdm->flags & CLKDM_CAN_ENABLE_AUTO)
omap2_clkdm_allow_idle(clkdm);
else if (clkdm->flags & CLKDM_CAN_FORCE_SLEEP &&
{
_omap_sram_idle = omap_sram_push(omap34xx_cpu_suspend,
omap34xx_cpu_suspend_sz);
+ if (omap_type() != OMAP2_DEVICE_TYPE_GP)
+ _omap_save_secure_sram = omap_sram_push(save_secure_ram_context,
+ save_secure_ram_context_sz);
}
static int __init omap3_pm_init(void)
{
struct power_state *pwrst, *tmp;
+ struct clockdomain *neon_clkdm, *per_clkdm, *mpu_clkdm, *core_clkdm;
int ret;
if (!cpu_is_omap34xx())
goto err2;
}
+ neon_pwrdm = pwrdm_lookup("neon_pwrdm");
+ per_pwrdm = pwrdm_lookup("per_pwrdm");
+ core_pwrdm = pwrdm_lookup("core_pwrdm");
+ cam_pwrdm = pwrdm_lookup("cam_pwrdm");
+
+ neon_clkdm = clkdm_lookup("neon_clkdm");
+ mpu_clkdm = clkdm_lookup("mpu_clkdm");
+ per_clkdm = clkdm_lookup("per_clkdm");
+ core_clkdm = clkdm_lookup("core_clkdm");
+
omap_push_sram_idle();
#ifdef CONFIG_SUSPEND
suspend_set_ops(&omap_pm_ops);
#endif /* CONFIG_SUSPEND */
pm_idle = omap3_pm_idle;
+ omap3_idle_init();
+
+ clkdm_add_wkdep(neon_clkdm, mpu_clkdm);
+ if (omap_type() != OMAP2_DEVICE_TYPE_GP) {
+ omap3_secure_ram_storage =
+ kmalloc(0x803F, GFP_KERNEL);
+ if (!omap3_secure_ram_storage)
+ printk(KERN_ERR "Memory allocation failed when"
+ "allocating for secure sram context\n");
+
+ local_irq_disable();
+ local_fiq_disable();
+
+ omap_dma_global_context_save();
+ omap3_save_secure_ram_context(PWRDM_POWER_ON);
+ omap_dma_global_context_restore();
+
+ local_irq_enable();
+ local_fiq_enable();
+ }
+ omap3_save_scratchpad_contents();
err1:
return ret;
err2: