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Date:   Wed, 26 Feb 2020 17:57:24 +0000
From:   Russell King - ARM Linux admin <linux@armlinux.org.uk>
To:     Geert Uytterhoeven <geert@linux-m68k.org>
Cc:     Marek Szyprowski <m.szyprowski@samsung.com>,
        Geert Uytterhoeven <geert+renesas@glider.be>,
        Nicolas Pitre <nico@fluxnic.net>,
        Arnd Bergmann <arnd@arndb.de>,
        Eric Miao <eric.miao@nvidia.com>,
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        <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 Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] ARM: boot: Fix ATAGs with appended DTB
Message-ID: <20200226175723.GF25745@shell.armlinux.org.uk>
References: <CGME20200225144815eucas1p1229ceb0d017b46cbbe2409639a7c1f83@eucas1p1.samsung.com>
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 <e249c123-8d00-4aa3-34b8-f82d52428966@samsung.com>
 <20200226174905.GE25745@shell.armlinux.org.uk>
 <CAMuHMdW1ojYyWXZpzgiy8PrZnR2PQ9n3SEDrQ7hFFUg0j-jegg@mail.gmail.com>
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On Wed, Feb 26, 2020 at 06:56:06PM +0100, Geert Uytterhoeven wrote:
> Hi Russell,
> 
> On Wed, Feb 26, 2020 at 6:49 PM Russell King - ARM Linux admin
> <linux@armlinux.org.uk> wrote:
> > On Wed, Feb 26, 2020 at 07:35:14AM +0100, Marek Szyprowski wrote:
> > > 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.
> 
> Fixing the original is fine for me, of course.
> Thanks!

Please submit a replacement for 8960/1, thanks.

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