Re: [PATCH v5 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135

From	Eddie Huang <eddie.huang@mediatek.com>
Newsgroups	linux.kernel
Subject	Re: [PATCH v5 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135
Date	2015-10-26 12:50 +0100
Message-ID	<qnOrM-7Hj-21@gated-at.bofh.it> (permalink)
References	<qfarw-7j6-13@gated-at.bofh.it> <qfarw-7j6-21@gated-at.bofh.it> <qnEiK-1tK-3@gated-at.bofh.it> <qnKet-5ir-7@gated-at.bofh.it> <qnL0R-5NG-1@gated-at.bofh.it>
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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 <yingjoe.chen@mediatek.com> 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 <yingjoe.chen@mediatek.com> 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 <yingjoe.chen@mediatek.com>
> >>
> >> 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


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Thread

Re: [PATCH v5 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135 Kevin Hilman <khilman@kernel.org> - 2015-10-26 02:00 +0100
  Re: [PATCH v5 4/5] ARM: dts: mt8135: enable basic SMP bringup for  mt8135 Yingjoe Chen <yingjoe.chen@mediatek.com> - 2015-10-26 08:20 +0100
    Re: [PATCH v5 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135 Kevin Hilman <khilman@kernel.org> - 2015-10-26 09:10 +0100
      Re: [PATCH v5 4/5] ARM: dts: mt8135: enable basic SMP bringup for  mt8135 Eddie Huang <eddie.huang@mediatek.com> - 2015-10-26 12:50 +0100
        Re: [PATCH v5 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135 Kevin Hilman <khilman@kernel.org> - 2015-10-29 10:20 +0100
          Re: [PATCH v5 4/5] ARM: dts: mt8135: enable basic SMP bringup for  mt8135 Eddie Huang <eddie.huang@mediatek.com> - 2015-10-29 13:10 +0100

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