From 0945b0bd85286e7fc1ade8f6e35a51435738a7de Mon Sep 17 00:00:00 2001 From: Kevin Hilman Date: Thu, 1 Nov 2007 16:11:56 -0700 Subject: [PATCH] ARM: OMAP2: PRCM: more init, and clear wakeup events. More initialization of wake dependencies. Clear PRCM wake-up events after coming out of full-retention. Signed-off-by: Kevin Hilman Signed-off-by: Tony Lindgren --- arch/arm/mach-omap2/pm.c | 23 ++++++++++++++++++++++- 1 file changed, 22 insertions(+), 1 deletion(-) diff --git a/arch/arm/mach-omap2/pm.c b/arch/arm/mach-omap2/pm.c index 16df6d7b565..7df5389d168 100644 --- a/arch/arm/mach-omap2/pm.c +++ b/arch/arm/mach-omap2/pm.c @@ -395,7 +395,7 @@ void omap2_allow_sleep(void) static void omap2_enter_full_retention(void) { - u32 sleep_time = 0; + u32 l, sleep_time = 0; /* There is 1 reference hold for all children of the oscillator * clock, the following will remove it. If no one else uses the @@ -448,6 +448,24 @@ no_sleep: clk_enable(osc_ck); + /* clear CORE wake-up events */ + prm_write_mod_reg(0xffffffff, CORE_MOD, PM_WKST1); + prm_write_mod_reg(0xffffffff, CORE_MOD, OMAP24XX_PM_WKST2); + + /* wakeup domain events */ + l = prm_read_mod_reg(WKUP_MOD, PM_WKST); + l &= 0x5; /* bit 1: GPT1, bit5 GPIO */ + prm_write_mod_reg(l, WKUP_MOD, PM_WKST); + + /* MPU domain wake events */ + l = prm_read_reg(OMAP24XX_PRCM_IRQSTATUS_MPU); + if (l & 0x01) + prm_write_reg(0x01, OMAP24XX_PRCM_IRQSTATUS_MPU); + if (l & 0x20) + prm_write_reg(0x20, OMAP24XX_PRCM_IRQSTATUS_MPU); + + /* Mask future PRCM-to-MPU interrupts */ + prm_write_reg(0x0, OMAP24XX_PRCM_IRQSTATUS_MPU); } static int omap2_i2c_active(void) @@ -652,6 +670,9 @@ static void __init prcm_setup_regs(void) prm_write_mod_reg(OMAP_EN_WKUP, MPU_MOD, PM_WKDEP); prm_write_mod_reg(0, OMAP24XX_DSP_MOD, PM_WKDEP); prm_write_mod_reg(0, GFX_MOD, PM_WKDEP); + prm_write_mod_reg(0, CORE_MOD, PM_WKDEP); + if (cpu_is_omap2430()) + prm_write_mod_reg(0, OMAP2430_MDM_MOD, PM_WKDEP); l = prm_read_mod_reg(CORE_MOD, PM_PWSTCTRL); /* Enable retention for all memory blocks */ -- 2.41.0