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Received: from shell.armlinux.org.uk ([2002:4e20:1eda:1:5054:ff:fe00:4ec]:53116) by pandora.armlinux.org.uk with esmtpsa (TLSv1.2:ECDHE-RSA-AES256-GCM-SHA384:256) (Exim 4.90_1) (envelope-from ) id 1j70o4-0000ZM-Bz; Wed, 26 Feb 2020 17:49:12 +0000 Received: from linux by shell.armlinux.org.uk with local (Exim 4.92) (envelope-from ) id 1j70nx-0000A1-E1; Wed, 26 Feb 2020 17:49:05 +0000 Date: Wed, 26 Feb 2020 17:49:05 +0000 From: Russell King - ARM Linux admin To: Marek Szyprowski , Geert Uytterhoeven Subject: Re: [PATCH] ARM: boot: Fix ATAGs with appended DTB Message-ID: <20200226174905.GE25745@shell.armlinux.org.uk> References: <20200225144749.19815-1-geert+renesas@glider.be> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.10.1 (2018-07-13) X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20200226_094939_476399_5877F37A X-CRM114-Status: GOOD ( 12.70 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Arnd Bergmann , Nicolas Pitre , linux-kernel@vger.kernel.org, Linux-Renesas , Chris Brandt , Uwe =?iso-8859-1?Q?Kleine-K=F6nig?= , Eric Miao , Linux ARM Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+infradead-linux-arm-kernel=archiver.kernel.org@lists.infradead.org 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 > > Signed-off-by: Geert Uytterhoeven 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/ FTTC broadband for 0.8mile line in suburbia: sync at 12.1Mbps down 622kbps up According to speedtest.net: 11.9Mbps down 500kbps up _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel