From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-wm0-f66.google.com ([74.125.82.66]:33275 "EHLO mail-wm0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751325AbcKGMTe (ORCPT ); Mon, 7 Nov 2016 07:19:34 -0500 Received: by mail-wm0-f66.google.com with SMTP id u144so16153187wmu.0 for ; Mon, 07 Nov 2016 04:19:34 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <58205984.4000708@jinso.co.jp> References: <57A46D20.7040106@jinso.co.jp> <57C9764F.2070802@jinso.co.jp> <57D66DEC.4090607@jinso.co.jp> <57ECF4EA.4010704@jinso.co.jp> <57EE368B.8030500@jinso.co.jp> <57EE38CF.5090903@jinso.co.jp> <58205984.4000708@jinso.co.jp> From: Geert Uytterhoeven Date: Mon, 7 Nov 2016 13:19:32 +0100 Message-ID: Subject: Re: GEN2:Lager: Only 1 core works when turning off the SW8-PIN4 To: Hiep Cao Minh Cc: Xuan Truong Nguyen , Laurent Pinchart , duclm , Ryusuke Sakato , Kuninori Morimoto , Magnus Damm , Geert Uytterhoeven , =?UTF-8?B?56iy5ZCJ?= , Yoshihiro Shimoda , =?UTF-8?B?RHVuZ++8muS6uuOCvQ==?= , Simon Horman , Linux-Renesas , Wolfram Sang Content-Type: text/plain; charset=UTF-8 Sender: linux-renesas-soc-owner@vger.kernel.org List-ID: Hi Hiep, On Mon, Nov 7, 2016 at 11:37 AM, Hiep Cao Minh wrote: > On 11/07/2016 06:44 PM, Geert Uytterhoeven wrote: >> On Fri, Sep 30, 2016 at 12:05 PM, Hiep Cao Minh >> wrote: >>>>>> >>>>>> The issue you're seeing is due to a combination of commits >>>>>> 5f3bca0db8ac01a7 >>>>>> ("ARM: shmobile: apmu: Add APMU DT support via Enable method") and >>>>>> dc378795156d980c ("ARM: dts: r8a7790: Add APMU nodes"). >>>>>> >>>>>> When debug mode is enabled (SW8-4 = OFF), trying to boot secondary >>>>>> CPUs >>>>>> may >>>>>> lock up the system after a cold boot, depending of boot load version. >>>>>> Hence >>>>>> we explicitly prohibit that. BTW, this has been the case on Koelsch >>>>>> since >>>>>> commit >>>>>> 277efd30cfc72ec2 ("ARM: shmobile: Check r8a7791 MD21 at SMP boot"). >>>>>> >>>>>> Now, does series "[PATCH/RFT 0/4] ARM: shmobile: R-Car Gen2: Allow >>>>>> booting >>>>>> secondary CPU cores in debug mode" (included in all renesas-drivers >>>>>> releases >>>>>> during September) fix it for you? >>>>> >>>>> Thanks for your series patches. >>>>> I have had some problems of receiving post mail from Linux-Renesas >>>>> Mailing >>>>> List recently. >>>>> >>>>> Could you please forward these series patches to me? >>>> >>>> They're included in renesas-drivers. >>>> You can also get them from gitweb at >>>> >>>> >>>> https://git.kernel.org/cgit/linux/kernel/git/geert/renesas-drivers.git/log/?h=topic/rcar-secondary-booting-in-debug-mode-v1 >>> >>> Thanks, I'll confirm these patches on my board. >> >> Have you tried this series on your Lager? If yes, can I add your >> Tested-by? > > Sorry for the late reply!. > I have totally forgotten my reporting test result to you. > I have tested this series on my Lager board. The bug has been fixed. Thanks, I will add your Tested-by. >> Which ES version of R-Car H1 do you have? If you don't know, you can >> tell me the result of "md.l 0xff000044 1" in U-Boot. > > My board information: > LAGER SPI_LOADER V0.28 2014.09.29 > DEVICE S25FL512 > > > U-Boot 2016.01 (Jul 27 2016 - 15:27:42 +0900) > > CPU: Renesas Electronics R8A7790 rev 2.0 > ----- > => md.l 0xff000044 1 > ff000044: 00004510 .E.. R-Car H2 ES2.0. Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds