From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [PATCH 1/3] irqchip: gic/realview: support more RealView DCC variants Date: Thu, 18 Feb 2016 15:40:34 +0100 Message-ID: <5028476.WAQS3ylXOd@wuerfel> References: <1455803172-22747-1-git-send-email-linus.walleij@linaro.org> <56C5D304.5010708@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: <56C5D304.5010708-5wv7dgnIgG8@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org Cc: Marc Zyngier , Linus Walleij , Mark Rutland , Russell King , Pawel Moll , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Will Deacon List-Id: devicetree@vger.kernel.org On Thursday 18 February 2016 14:19:48 Marc Zyngier wrote: > On 18/02/16 13:46, Linus Walleij wrote: > > In the add-on file for the GIC dealing with the RealView family > > we currently only handle the PB11MPCore, let's extend this to > > manage the RealView EB ARM11MPCore as well. The Revision B of the > > ARM11MPCore core tile is a bit special and needs special handling > > as it moves a system control register around at random. > > Ah, 11MPCore RevB. That thing. Tried to locate one in the magic > cupboard, and failed. Oh well... What surprised me though is that it's enabled by default: $ grep REVB arch/arm/configs/realview* arch/arm/configs/realview_defconfig:CONFIG_REALVIEW_EB_ARM11MP_REVB=y arch/arm/configs/realview-smp_defconfig:CONFIG_REALVIEW_EB_ARM11MP_REVB=y With that option set, the defconfig kernel should not be able to boot on RevC machines. Do you have a RevC machine that works with the defconfig? Arnd -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html