Hi Yingjoe, 2015-05-01 9:43 GMT+02:00 Yingjoe Chen <yingjoe.chen@xxxxxxxxxxxx>: > This series add SMP brinup support for mediatek SoCs. This is based > on v4.1-rc1. > > There are 2 similar but different SMP bringup up methods on Mediatek > mt65xx and mt81xx. On MT8135 & MT8127, system boots with a trustzone > firmware. Others, like MT6589, doesn't have trustzone, and run kernel > directly in secure world. > > Patch 1~3 fix issues in mtk_timer(GPT) and enable arch timer support. > Patch 4,5 add support for cpu enable-method "mediatek,mt65xx-smp" and > "mediatek,mt81xx-tz-smp", which support Mediatek SMP bringup for non-TZ > and TZ platform. > Patch 6,7 finally enable SMP bringup for mt8135 and mt8127. > > Matthias Brugger (1): > arm: mediatek: enable gpt6 on boot up to make arch timer working > > Yingjoe Chen (6): > clocksource: mediatek: Don't run event_handler if it is NULL > clocksource: mediatek: Use GPT as sched clock source > devicetree: bindings: add new SMP enable method Mediatek SoC > ARM: mediatek: add smp bringup code > ARM: dts: mt8135: enable basic SMP bringup for mt8135 > ARM: dts: mt8127: enable basic SMP bringup for mt8127 > I tried on the mt8135 eval board but it fails to bring up the CPU. When booting: [ 1.048588] CPU1: failed to come online [ 2.049914] CPU2: failed to come online [ 3.051245] CPU3: failed to come online And from userspace: / # echo 1 > /sys/devices/system/cpu/cpu1/online [ 40.115142] CPU1: failed to come online sh: write error: Input/output error / # echo 1 > /sys/devices/system/cpu/cpu2/online [ 44.667141] CPU2: failed to come online sh: write error: Input/output error / # echo 1 > /sys/devices/system/cpu/cpu3/online [ 51.271141] CPU3: failed to come online sh: write error: Input/output error Please check again. Cheers, Matthias -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
