From mboxrd@z Thu Jan 1 00:00:00 1970 From: Scott Shu Subject: Re: [PATCH v3 5/8] ARM: mediatek: add smp bringup code for MT6580 Date: Fri, 7 Aug 2015 10:28:14 +0800 Message-ID: <1438914494.1900.38.camel@mtkswgap22> References: <1438696464-59858-1-git-send-email-scott.shu@mediatek.com> <1438696464-59858-6-git-send-email-scott.shu@mediatek.com> <20150805094429.GU7557@n2100.arm.linux.org.uk> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20150805094429.GU7557-l+eeeJia6m9vn6HldHNs0ANdhmdF6hFW@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Russell King - ARM Linux Cc: Matthias Brugger , Sascha Hauer , Mark Rutland , devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, wsd_upstream-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, scott.shu-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org, loda.chou-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, jades.shih-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, linux-mediatek-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, Mars.Cheng-NuS5LvNUpcJWk0Htik3J/w@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org On Wed, 2015-08-05 at 10:44 +0100, Russell King - ARM Linux wrote: > On Tue, Aug 04, 2015 at 09:54:21PM +0800, Scott Shu wrote: > > Add support for cpu enable-method "mediatek,mt6580-smp" for booting > > secondary CPUs on MT6580. > > If you have CPU power domain support, and you power up and power down the > CPUs, why do you need the boot_lock and pen_release stuff? Isn't keeping > the power off on a CPU sufficient to prevent it entering the kernel? > Thanks Russell. Yes, the system works well after removing boot_lock and pen_release. Will be fixed in next version. Scott -- 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