diff options
Diffstat (limited to 'arch/arm/mach-omap2/pm34xx.c')
| -rw-r--r-- | arch/arm/mach-omap2/pm34xx.c | 259 |
1 files changed, 137 insertions, 122 deletions
diff --git a/arch/arm/mach-omap2/pm34xx.c b/arch/arm/mach-omap2/pm34xx.c index ea0000bc535..2e967716cc3 100644 --- a/arch/arm/mach-omap2/pm34xx.c +++ b/arch/arm/mach-omap2/pm34xx.c @@ -58,6 +58,7 @@ u32 enable_off_mode; u32 sleep_while_idle; u32 wakeup_timer_seconds; +u32 wakeup_timer_milliseconds; struct power_state { struct powerdomain *pwrdm; @@ -93,19 +94,20 @@ 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, WKUP_MOD, PM_WKEN); + 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)) { + 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, + prm_set_mod_reg_bits(OMAP3430_ST_IO_CHAIN_MASK, WKUP_MOD, PM_WKST); } } @@ -114,7 +116,8 @@ static void omap3_enable_io_chain(void) static void omap3_disable_io_chain(void) { if (omap_rev() >= OMAP3430_REV_ES3_1) - prm_clear_mod_reg_bits(OMAP3430_EN_IO_CHAIN, WKUP_MOD, PM_WKEN); + prm_clear_mod_reg_bits(OMAP3430_EN_IO_CHAIN_MASK, WKUP_MOD, + PM_WKEN); } static void omap3_core_save_context(void) @@ -267,14 +270,18 @@ static int _prcm_int_handle_wakeup(void) */ 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(); /* @@ -292,7 +299,11 @@ static irqreturn_t prcm_interrupt_handler (int irq, void *dev_id) 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; } @@ -371,12 +382,19 @@ void omap_sram_idle(void) if (pwrdm_read_pwrst(neon_pwrdm) == PWRDM_POWER_ON) pwrdm_set_next_pwrst(neon_pwrdm, mpu_next_state); - /* PER */ + /* 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(); + } + + /* PER */ if (per_next_state < PWRDM_POWER_ON) { omap_uart_prepare_idle(2); - omap2_gpio_prepare_for_retention(); + 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; @@ -398,10 +416,8 @@ void omap_sram_idle(void) omap3_core_save_context(); omap3_prcm_save_context(); } - /* Enable IO-PAD and IO-CHAIN wakeups */ - prm_set_mod_reg_bits(OMAP3430_EN_IO, WKUP_MOD, PM_WKEN); - omap3_enable_io_chain(); } + omap3_intc_prepare_idle(); /* @@ -445,7 +461,7 @@ void omap_sram_idle(void) 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, + prm_clear_mod_reg_bits(OMAP3430_AUTO_OFF_MASK, OMAP3430_GR_MOD, OMAP3_PRM_VOLTCTRL_OFFSET); } @@ -454,9 +470,9 @@ void omap_sram_idle(void) /* 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(); - omap2_gpio_resume_after_retention(); omap_uart_resume_idle(2); if (per_state_modified) pwrdm_set_next_pwrst(per_pwrdm, PWRDM_POWER_OFF); @@ -464,7 +480,7 @@ void omap_sram_idle(void) /* Disable IO-PAD and IO-CHAIN wakeup */ if (core_next_state < PWRDM_POWER_ON) { - prm_clear_mod_reg_bits(OMAP3430_EN_IO, WKUP_MOD, PM_WKEN); + prm_clear_mod_reg_bits(OMAP3430_EN_IO_MASK, WKUP_MOD, PM_WKEN); omap3_disable_io_chain(); } @@ -548,20 +564,21 @@ out: #ifdef CONFIG_SUSPEND static suspend_state_t suspend_state; -static void omap2_pm_wakeup_on_timer(u32 seconds) +static void omap2_pm_wakeup_on_timer(u32 seconds, u32 milliseconds) { u32 tick_rate, cycles; - if (!seconds) + if (!seconds && !milliseconds) return; tick_rate = clk_get_rate(omap_dm_timer_get_fclk(gptimer_wakeup)); - cycles = tick_rate * seconds; + 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 %d secs (%d ticks at %d ticks/sec.)\n", - seconds, cycles, tick_rate); + 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) @@ -575,8 +592,9 @@ static int omap3_pm_suspend(void) struct power_state *pwrst; int state, ret = 0; - if (wakeup_timer_seconds) - omap2_pm_wakeup_on_timer(wakeup_timer_seconds); + 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) @@ -683,9 +701,9 @@ static void __init omap3_iva_idle(void) return; /* Reset IVA2 */ - prm_write_mod_reg(OMAP3430_RST1_IVA2 | - OMAP3430_RST2_IVA2 | - OMAP3430_RST3_IVA2, + 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 */ @@ -703,9 +721,9 @@ static void __init omap3_iva_idle(void) 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, + prm_write_mod_reg(OMAP3430_RST1_IVA2_MASK | + OMAP3430_RST2_IVA2_MASK | + OMAP3430_RST3_IVA2_MASK, OMAP3430_IVA2_MOD, OMAP2_RM_RSTCTRL); } @@ -727,8 +745,8 @@ 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, + 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); } @@ -754,102 +772,102 @@ 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, OMAP2_CONTROL_SYSCONFIG); + omap_ctrl_writel(OMAP3430_AUTOIDLE_MASK, OMAP2_CONTROL_SYSCONFIG); /* * Set all plls to autoidle. This is needed until autoidle is @@ -879,35 +897,40 @@ static void __init prcm_setup_regs(void) 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, + 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 | - OMAP3430_EN_MCBSP2 | OMAP3430_EN_MCBSP3 | - OMAP3430_EN_MCBSP4, + 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 | - OMAP3430_EN_MCBSP2 | OMAP3430_EN_MCBSP3 | - OMAP3430_EN_MCBSP4, + 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 */ @@ -1080,14 +1103,6 @@ static int __init omap3_pm_init(void) omap3_idle_init(); clkdm_add_wkdep(neon_clkdm, mpu_clkdm); - /* - * REVISIT: This wkdep is only necessary when GPIO2-6 are enabled for - * IO-pad wakeup. Otherwise it will unnecessarily waste power - * waking up PER with every CORE wakeup - see - * http://marc.info/?l=linux-omap&m=121852150710062&w=2 - */ - clkdm_add_wkdep(per_clkdm, core_clkdm); - if (omap_type() != OMAP2_DEVICE_TYPE_GP) { omap3_secure_ram_storage = kmalloc(0x803F, GFP_KERNEL); |