From mboxrd@z Thu Jan 1 00:00:00 1970 From: eddie.huang@mediatek.com (Eddie Huang) Date: Mon, 26 Oct 2015 19:40:10 +0800 Subject: [PATCH v5 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135 In-Reply-To: References: <1443799181-50409-1-git-send-email-yingjoe.chen@mediatek.com> <1443799181-50409-5-git-send-email-yingjoe.chen@mediatek.com> <1445843717.23888.1.camel@mtksdaap41> Message-ID: <1445859610.26723.4.camel@mtksdaap41> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Kevin, On Mon, 2015-10-26 at 17:06 +0900, Kevin Hilman wrote: > On Mon, Oct 26, 2015 at 4:15 PM, Yingjoe Chen wrote: > > On Mon, 2015-10-26 at 09:56 +0900, Kevin Hilman wrote: > >> Hello, > >> > >> On Sat, Oct 3, 2015 at 12:19 AM, Yingjoe Chen wrote: > >> > Add arch timer node to enable arch-timer support. MT8135 firmware > >> > doesn't correctly setup arch-timer frequency and CNTVOFF, add > >> > properties to workaround this. > >> > > >> > This also set cpu enable-method to enable SMP. > >> > > >> > Signed-off-by: Yingjoe Chen > >> > >> kernelci.org started detecting new boot failures for the mt8135-evb in > >> the arm-soc tree[1], and the boot failures were bisected down to this > >> patch, which landed upstream in the form of commit d186a394bb98 (ARM: > >> dts: mt8135: enable basic SMP bringup for mt8135) > >> > >> Maybe this new SMP support requires updating the firmware on the board > >> as well? If so, the changelog should've been a bit more explicit > >> about firmware dependencies. > > > > Kevin, > > > > Thanks for testing. > > > > No, it doesn't need new firmware. Will test to see what's going wrong. > > Thanks for following up. I'll be glad to test any patches if you have > anything you'd like me to test. You need "clockevents/drivers/mtk: Fix spurious interrupt leading to crash" (https://lkml.org/lkml/2015/8/24/803) Daniel Lezcano already applied this patch in his tree for 4.4. (https://git.linaro.org/people/daniel.lezcano/linux.git) Eddie Thanks