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Thu, 12 Mar 2020 12:23:09 +0000 (GMT) Subject: Re: [PATCH] ARM: boot: Fix ATAGs with appended DTB To: Geert Uytterhoeven , Russell King - ARM Linux admin Cc: Geert Uytterhoeven , Nicolas Pitre , Arnd Bergmann , Eric Miao , =?UTF-8?Q?Uwe_Kleine-K=c3=b6nig?= , Chris Brandt , Linux ARM , Linux-Renesas , Linux Kernel Mailing List From: Marek Szyprowski Message-ID: Date: Thu, 12 Mar 2020 13:23:09 +0100 User-Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:68.0) Gecko/20100101 Thunderbird/68.5.0 MIME-Version: 1.0 In-Reply-To: Content-Transfer-Encoding: 7bit Content-Language: en-US X-Brightmail-Tracker: H4sIAAAAAAAAA01Se0hTcRTut3t3d11OrvN1sigapBjlo/rjliYGJbcosIgMY+qqy9R01m5a RpK9RbSmFurUlB6YplazNKZCTnSWNrWFlkkpmWg08VXks9xulv993znfOd/54JCYtFvoTkar TrNqlSJWRojx6uap9o2VXjHhvsYZT3ouq1lEF+Vk4HRZTT1GF+ZnIXqwp15A6750CWmzvoCg nw+PCGjD7XpE3xkaIuiPmdkoaDlj7urEmJnpLMQMtlwnmMw3GxlDYypiqu5fYDIujxDMzTlf 5mdbJs5M6FaHiMPEAcfZ2OhEVu0TGCmOSjf3CE/m2J8d6J0RpaBxuzRkRwK1BT63j6M0JCal 1EMELV8nRTyZRPCjtBzjyQQCfY1FtDhSPVWM840SBE36XCFPLAj6HnfgVpUT5Q/G/lqBFTtT Svh18bZtL0Y9wmDwZqHQ2iAoP0izpBFWLKECQdP9zjaMU+sg29hl07hQcsgvbcR5jSO8yhuw YTtqP+j6hm0Yo9ZAjaUA47Eb9AwUCaxmQI2JIP31LYK/eyfMax4IeewE34zP/uZZBa3Z6Tg/ cBlBv6lCxJN0BOZLuYhX+UOvaXphE7lg4QWP9T58eQdUf69B1jJQDvDe4sgf4QBZ1TkYX5ZA 6jUpr/YArbHyn21Dx1tMg2TaJdG0S+Jol8TR/vctRngZcmMTuDgly21SsWe8OUUcl6BSeh+L j9OhhXdrnTdOvkD62aMGRJFIZi/xdY0JlwoViVxSnAEBicmcJRFrlOFSyXFF0jlWHR+hTohl OQNaSeIyN8nmu8NyKaVUnGZPsOxJVr3YFZB27ikomKgbPjLb9nsX2TCZ4vZbberlXJ8+7Qyt UB4y4h9CkPyK9CopD11WkFzqqz3l0hhkmkmoGuxPjRkrWrnr/O4VX5yaWrU+mvJgzwN5ReNr Kz69vHeC1NbdGH2iOrx3T21YS3OyZt9We7NHbvb8wf5t2zfY7w4oMOnHnSKp0WjHkjAZzkUp /NZjak7xBwUhp8RqAwAA X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFnrJIsWRmVeSWpSXmKPExsVy+t/xu7rrNLPiDP60clr8nXSM3WL+9F4W i1Xb9zJbzJ09idHi2a29TBabHl9jtbi8aw6bxdaX75gsDk3dy2gx78ULNovbEyczOnB7XL52 kdnj969JjB7PTrSzeUw8q+tx6HAHo8fmJfUevc3v2Dz6/xp4fDszkcXj8ya5AK4oPZui/NKS VIWM/OISW6VoQwsjPUNLCz0jE0s9Q2PzWCsjUyV9O5uU1JzMstQifbsEvYyey7dYC6bzVDy5 85u9gfETZxcjJ4eEgInEtp8LWLoYuTiEBJYySiz9/I8VIiEjcXJaA5QtLPHnWhcbRNFrRon9 z1+zgySEBawljj/czQRiiwikS7w++YUZpIhZYC2zxISpMxghOrYyS/xYep4FpIpNwFCi6y3I KE4OXgE7iQnXr4DFWQRUJSYfvwa2TlQgVuLGzA4miBpBiZMzn4DVcAoESmx68BLMZhYwk5i3 +SEzhC0vsf3tHChbXOLWk/lMExiFZiFpn4WkZRaSlllIWhYwsqxiFEktLc5Nzy021CtOzC0u zUvXS87P3cQIjOZtx35u3sF4aWPwIUYBDkYlHl4Dsaw4IdbEsuLK3EOMEhzMSiK88fLpcUK8 KYmVValF+fFFpTmpxYcYTYGem8gsJZqcD0w0eSXxhqaG5haWhubG5sZmFkrivB0CB2OEBNIT S1KzU1MLUotg+pg4OKUaGBkLngpHnrNfep+b6Xrt5F39i05nTfVfWKO3+7fMlunvuPveWUt1 +8px31c3Mzc4sFprNaPBJo5Th1gUeH8+vHMoYmuUZ1XmgVLJ9u+foozMH3fJaqRVNcSarNCq rnXZ6fH1l+/5HyZF76+wblRiLNyYZ/twZnvql9cLuG4XM++1e/1yxn/n50osxRmJhlrMRcWJ AKNhF/r8AgAA X-CMS-MailID: 20200312122310eucas1p1165dfbb441a2f266968e1e00e2844d04 X-Msg-Generator: CA Content-Type: text/plain; charset="utf-8" X-RootMTR: 20200225144815eucas1p1229ceb0d017b46cbbe2409639a7c1f83 X-EPHeader: CA CMS-TYPE: 201P X-CMS-RootMailID: 20200225144815eucas1p1229ceb0d017b46cbbe2409639a7c1f83 References: <20200225144749.19815-1-geert+renesas@glider.be> <20200226174905.GE25745@shell.armlinux.org.uk> <20200226175723.GF25745@shell.armlinux.org.uk> Sender: linux-renesas-soc-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-renesas-soc@vger.kernel.org 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 > 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 >>> 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 >>>>>> 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. >>> 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... Best regards -- Marek Szyprowski, PhD Samsung R&D Institute Poland