From mboxrd@z Thu Jan 1 00:00:00 1970 From: khilman@kernel.org (Kevin Hilman) Date: Mon, 9 Nov 2015 09:59:57 -0800 Subject: [PATCH v5 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135 In-Reply-To: <1445859610.26723.4.camel@mtksdaap41> 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> <1445859610.26723.4.camel@mtksdaap41> Message-ID: To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Oct 26, 2015 at 4:40 AM, Eddie Huang wrote: > 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) The mt8135-evp board is still failing to boot in linux-next[1] (and has been since next-20151022.) It appears the dependencies are not quite correct in linux-next either. Kevin [1] http://kernelci.org/boot/mt8135-evbp1/job/next/kernel/next-20151109/defconfig/multi_v7_defconfig/lab/lab-khilman/?_id=564037fe59b514b2f6091909