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Date:   Wed, 26 Feb 2020 17:49:05 +0000
From:   Russell King - ARM Linux admin <linux@armlinux.org.uk>
To:     Marek Szyprowski <m.szyprowski@samsung.com>,
        Geert Uytterhoeven <geert+renesas@glider.be>
Cc:     Nicolas Pitre <nico@fluxnic.net>, Arnd Bergmann <arnd@arndb.de>,
        Eric Miao <eric.miao@nvidia.com>,
        Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= 
        <u.kleine-koenig@pengutronix.de>,
        Chris Brandt <chris.brandt@renesas.com>,
        Linux ARM <linux-arm-kernel@lists.infradead.org>,
        Linux-Renesas <linux-renesas-soc@vger.kernel.org>,
        linux-kernel@vger.kernel.org
Subject: Re: [PATCH] ARM: boot: Fix ATAGs with appended DTB
Message-ID: <20200226174905.GE25745@shell.armlinux.org.uk>
References: <CGME20200225144815eucas1p1229ceb0d017b46cbbe2409639a7c1f83@eucas1p1.samsung.com>
 <20200225144749.19815-1-geert+renesas@glider.be>
 <e249c123-8d00-4aa3-34b8-f82d52428966@samsung.com>
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On Wed, Feb 26, 2020 at 07:35:14AM +0100, Marek Szyprowski wrote:
> Hi Geert,
> 
> On 25.02.2020 15:47, Geert Uytterhoeven wrote:
> > At early boot, register r8 may contain an ATAGs or DTB pointer.
> > When an appended DTB is found, its address is stored in r8, for
> > extraction of the RAM base address later.
> >
> > However, if r8 contained an ATAGs pointer before, that pointer will be
> > lost, and the provided ATAGs is no longer folded into the provided DTB.
> >
> > Fix this by leaving r8 untouched.
> >
> > Fixes: 137e522593918be2 ("ARM: 8960/1: boot: Obtain start of physical memory from DTB")
> > Reported-by: Marek Szyprowski <m.szyprowski@samsung.com>
> > Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

The original commit hasn't been submitted, so it can be fixed before it
hits mainline if you want.  Let me know what you want to do.  Thanks.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
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