Hello Janboe, On Tue, 7 Jul 2009, ye janboe wrote:
> I saw you clear clear the SDRC PWRENA bit during SDRC frequency change > but not during suspend. > > Please review if it is necessary to clear PWRENA bit during suspend. I hope we don't need this after: http://patchwork.kernel.org/patch/37284/ Of course, the bootloader might still set it :-( - Paul > > Thanks > > Janboe Ye > > rom 287db2e188391be0ac95128131724e0e035e945a Mon Sep 17 00:00:00 2001 > From: janboe <[email protected]> > Date: Tue, 7 Jul 2009 16:30:26 -0500 > Subject: [PATCH] Clear the SDRC_POWER.PWRENA bit before putting the > SDRAM into self-refresh and then suspend > > Signed-off-by: janboe <[email protected]> > --- > arch/arm/mach-omap2/sleep34xx.S | 1 + > 1 files changed, 1 insertions(+), 0 deletions(-) > > diff --git a/arch/arm/mach-omap2/sleep34xx.S b/arch/arm/mach-omap2/sleep34xx.S > index e5e2553..2bc0c3b 100644 > --- a/arch/arm/mach-omap2/sleep34xx.S > +++ b/arch/arm/mach-omap2/sleep34xx.S > @@ -70,6 +70,7 @@ loop: > ldr r4, sdrc_power @ read the SDRC_POWER register > ldr r5, [r4] @ read the contents of SDRC_POWER > orr r5, r5, #0x40 @ enable self refresh on idle req > + bic r5, r5, #0x4 @ clear PWDENA > str r5, [r4] @ write back to SDRC_POWER register > > cmp r1, #0x0 > -- > 1.6.3.1 > -- > To unsubscribe from this list: send the line "unsubscribe linux-omap" in > the body of a message to [email protected] > More majordomo info at http://vger.kernel.org/majordomo-info.html > - Paul -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
