From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH/RFC] ARM: OMAP2: PRCM: more init, and clear wakeup events. Date: Fri, 16 Nov 2007 16:01:07 -0800 Message-ID: <20071117000107.GO32675@atomide.com> References: <20071101231156.378789006@mvista.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <20071101231156.378789006@mvista.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: linux-omap-open-source-bounces@linux.omap.com Errors-To: linux-omap-open-source-bounces@linux.omap.com To: Kevin Hilman Cc: linux-omap-open-source@linux.omap.com List-Id: linux-omap@vger.kernel.org * Kevin Hilman [071101 16:13]: > More initialization of wake dependencies. > Clear PRCM wake-up events after coming out of full-retention. > > Signed-off-by: Kevin Hilman > > --- > arch/arm/mach-omap2/pm.c | 23 ++++++++++++++++++++++- > 1 file changed, 22 insertions(+), 1 deletion(-) > > Index: dev/arch/arm/mach-omap2/pm.c > =================================================================== > --- dev.orig/arch/arm/mach-omap2/pm.c > +++ dev/arch/arm/mach-omap2/pm.c > @@ -397,7 +397,7 @@ 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 > @@ -450,6 +450,24 @@ 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) > @@ -654,6 +672,9 @@ 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 */ > -- Pushing today. Tony