From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Warren Subject: Re: [RFC 1/4] ARM: tegra: Move SoC drivers to drivers/soc/tegra Date: Tue, 01 Jul 2014 09:05:47 -0600 Message-ID: <53B2CE4B.2010506@wwwdotorg.org> References: <1403888329-24755-1-git-send-email-thierry.reding@gmail.com> <53AEF81D.3080408@ti.com> <20140628204025.GA16415@ulmo> <7497427.LQy8pJts8f@wuerfel> <20140630090118.GA24128@ulmo> <20140630103649.GF28951@arm.com> <20140630104814.GA1495@ulmo> <20140630131628.GA31517@e102568-lin.cambridge.arm.com> <20140630193635.GB32594@mithrandir> <20140701105056.GO18313@arm.com> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <20140701105056.GO18313-5wv7dgnIgG8@public.gmane.org> Sender: linux-tegra-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Catalin Marinas , Thierry Reding Cc: Lorenzo Pieralisi , Arnd Bergmann , Greg Kroah-Hartman , Kumar Gala , Santosh Shilimkar , "linux-tegra-u79uwXL29TY76Z2rM5mHXA@public.gmane.org" , "linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org" List-Id: linux-tegra@vger.kernel.org On 07/01/2014 04:50 AM, Catalin Marinas wrote: > On Mon, Jun 30, 2014 at 08:36:36PM +0100, Thierry Reding wrote: >> On Mon, Jun 30, 2014 at 02:16:34PM +0100, Lorenzo Pieralisi wrote: >>> And I think that most of the early bring up issues are just related to >>> powering-up/resetting a cpu for it to be booted, probably that's the >>> abstraction we should be focusing on, because it should just require poking >>> a bunch of registers to kickstart a CPU, no more than that, FW should be >>> able to deal with that and that's yet another reason behind PSCI design. >> >> Right, I agree that if we can push that into PSCI that would be great >> (provided there's an open-source implementation of PSCI). > > At least one (BSD-style license): > > https://github.com/ARM-software/arm-trusted-firmware > > There are also some patches for U-Boot (only covering secondary CPU > booting for now and not merged yet). Are the U-Boot patches: a) Patches to make U-Boot provide a PSCI implementation. b) Patches to make U-Boot use PSCI as a client. If you have a link or patch subject to search for, that'd be interesting. Thanks.