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Message-ID: <CAMAWPa-Ed2FJY2pW67EHHKBH3_eBZx0+oWfMJwc_DhEjrf7aMg@mail.gmail.com>
Date:	Mon, 26 Oct 2015 09:56:50 +0900
From:	Kevin Hilman <khilman@...nel.org>
To:	Yingjoe Chen <yingjoe.chen@...iatek.com>
Cc:	Russell King - ARM Linux <linux@....linux.org.uk>,
	Matthias Brugger <matthias.bgg@...il.com>,
	"devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
	srv_heupstream@...iatek.com, Arnd Bergmann <arnd@...db.de>,
	Stephen Boyd <sboyd@...eaurora.org>,
	lkml <linux-kernel@...r.kernel.org>,
	Rob Herring <robh+dt@...nel.org>,
	linux-mediatek@...ts.infradead.org,
	Sascha Hauer <kernel@...gutronix.de>,
	Olof Johansson <olof@...om.net>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>,
	Tyler Baker <tyler.baker@...aro.org>
Subject: Re: [PATCH v5 4/5] ARM: dts: mt8135: enable basic SMP bringup for mt8135

Hello,

On Sat, Oct 3, 2015 at 12:19 AM, Yingjoe Chen <yingjoe.chen@...iatek.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@...iatek.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

[1] http://kernelci.org/boot/mt8135-evbp1/job/arm-soc/kernel/v4.3-rc5-795-ga4b616012d2e/defconfig/multi_v7_defconfig/lab/lab-khilman/?_id=562b1cf959b5149e07111471
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