From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [RFC 3/7] ARM: vf610m4: add new machine and SoC for Vybrid on Cortex-M4 Date: Sun, 12 Oct 2014 20:51:37 +0200 Message-ID: <2790232.XFn8jX0Lfm@wuerfel> References: Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Stefan Agner Cc: shawn.guo-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org, kernel-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, u.kleine-koenig-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org, olof-nZhT3qVonbNeoWH0uzbU5w@public.gmane.org, marcel-mitwqZ+T+m9Wk0Htik3J/w@public.gmane.org, linux-lFZ/pmaqli7XmaaqVzeoHQ@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: devicetree@vger.kernel.org On Sunday 12 October 2014 20:13:57 Stefan Agner wrote: > This patch adds a new machine ARCH_MXCM4 which requires !MMU and > !MULTIARCH and is meant as machine for the hetregenous multi-core > Vybrid/i.MX SoC's to run Linux on the Cortex-M4. > > The first SoC supported is Vybrid on Cortex-M4 (SOC_VF610M4). > > Signed-off-by: Stefan Agner > --- > Not sure whether we really need a new MACH, but since MACH_MXC needs > MULTIARCH, which in turn conflicts with !MMU, I guess there is no > easier way to do it... And then, this also needs a new SOC. I've carried an experimental patch to enable !MMU in combination with MULTIPLATFORM for a while, it's probably time to do this for real now, especially since we now have two !MMU platforms that can be built together. Independent of the question of whether such a combined kernel could run on real hardware or anybody would want to run such a kernel if it were possible, I think it's very useful to be able to build allmodconfig with MMU disabled and get all drivers for the available platforms for build testing. 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