From mboxrd@z Thu Jan 1 00:00:00 1970 From: grygorii.strashko@ti.com (Grygorii Strashko) Date: Thu, 17 Oct 2013 12:28:35 +0300 Subject: [PATCH 0/2] OMAP4460: cpuidle: Workaround for ROM bug because of CA9 r2pX GIC control register change In-Reply-To: <525FACA9.3060405@ti.com> References: <1382000776-15897-1-git-send-email-grygorii.strashko@ti.com> <525FACA9.3060405@ti.com> Message-ID: <525FADC3.4090505@ti.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Sorry, forgot to mention that patches are based on 4a10c2a Linux 3.12-rc2 On 10/17/2013 12:23 PM, Grygorii Strashko wrote: > The same workaround as ff999b8a0983ee15668394ed49e38d3568fc6859 > "ARM: OMAP4460: Workaround for ROM bug because of CA9 r2pX GIC control register change." > need to be applied not only when system is booting, but when > MPU hits OSWR state through CPUIdle too. > > Now the same issue is reproduced on boards PandaES and Tablet/Blaze with > SOM OMAP4460 ES1.0 when CONFIG_CPU_IDLE is enabled. > - GIC distributor is disabled > - scheduling is not performed any more > > Grygorii Strashko (2): > Revert "ARM: OMAP4+: CPUidle: Deprecate use of omap4_mpuss_read_prev_context_state()" > ARM: OMAP4460: cpuidle: WA for ROM bug because of CA9 r2pX gic control register change > > arch/arm/mach-omap2/common.h | 6 +++++ > arch/arm/mach-omap2/cpuidle44xx.c | 35 +++++++++++++++++++++++++++-- > arch/arm/mach-omap2/omap-mpuss-lowpower.c | 14 ++++++++++++ > arch/arm/mach-omap2/omap4-common.c | 6 +++++ > 4 files changed, 59 insertions(+), 2 deletions(-) > > Cc: Santosh Shilimkar > Cc: Kevin Hilman > > Regards, > -grygorii >