From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marc Zyngier Subject: Re: [PATCH 1/3] irqchip: gic/realview: support more RealView DCC variants Date: Thu, 18 Feb 2016 14:47:13 +0000 Message-ID: <56C5D971.6060005@arm.com> References: <1455803172-22747-1-git-send-email-linus.walleij@linaro.org> <56C5D304.5010708@arm.com> <5028476.WAQS3ylXOd@wuerfel> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <5028476.WAQS3ylXOd@wuerfel> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Arnd Bergmann , linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org Cc: Linus Walleij , Mark Rutland , Russell King , Pawel Moll , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Will Deacon List-Id: devicetree@vger.kernel.org On 18/02/16 14:40, Arnd Bergmann wrote: > 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? No, it looks like someone helped themselves to *all* of the EB-11MPs - I have a bunch of empty baseboards, and no tile to slap on. I also have a box of unsoldered 11MPs, but that a different story... ;-) I guess I should plan for another dumpster diving session. M. -- Jazz is not dead. It just smells funny... -- 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