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Date:   Thu, 12 Mar 2020 12:28:57 +0000
From:   Russell King - ARM Linux admin <linux@armlinux.org.uk>
To:     Marek Szyprowski <m.szyprowski@samsung.com>
Cc:     Geert Uytterhoeven <geert@linux-m68k.org>,
        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: <20200312122857.GY25745@shell.armlinux.org.uk>
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On Thu, Mar 12, 2020 at 01:23:09PM +0100, Marek Szyprowski wrote:
> Hi,
> 
> On 26.02.2020 21:48, Geert Uytterhoeven wrote:
> > Hi Russell,
> >
> > On Wed, Feb 26, 2020 at 6:57 PM Russell King - ARM Linux admin
> > <linux@armlinux.org.uk> wrote:
> >> On Wed, Feb 26, 2020 at 06:56:06PM +0100, Geert Uytterhoeven wrote:
> >>> 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.
> > Done.
> 
> Gentle ping. This fix is still not present in linux-next for over 2 weeks...

The 32-bit ARM tree is now a low priority ad-hoc effort; as a result,
I now only merge patches around once or twice each cycle. I've merged
the replacement earlier this morning.

So, it will take longer than two weeks for patches to make it into my
tree, as has been the case ever since I lost funding for maintaining
32-bit ARM support, and, therefore, I now have other priorities.

-- 
RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
FTTC broadband for 0.8mile line in suburbia: sync at 10.2Mbps down 587kbps up