From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754955AbbETV00 (ORCPT ); Wed, 20 May 2015 17:26:26 -0400 Received: from mout.kundenserver.de ([212.227.126.130]:52210 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752819AbbETV0W (ORCPT ); Wed, 20 May 2015 17:26:22 -0400 From: Arnd Bergmann To: linux-arm-kernel@lists.infradead.org Cc: Stefan Agner , mcoquelin.stm32@gmail.com, linux@arm.linux.org.uk, jason@lakedaemon.net, marc.zyngier@arm.com, linux-kernel@vger.kernel.org, kernel@pengutronix.de, u.kleine-koenig@pengutronix.de, olof@lixom.net, shawn.guo@linaro.org Subject: Re: [PATCH defconfig v8] ARM: vf610m4: add defconfig for Linux on Vybrids Cortex-M4 Date: Wed, 20 May 2015 23:25:44 +0200 Message-ID: <7545746.Jl1zbQvhrm@wuerfel> User-Agent: KMail/4.11.5 (Linux/3.16.0-10-generic; KDE/4.11.5; x86_64; ; ) In-Reply-To: <1432073182-27114-1-git-send-email-stefan@agner.ch> References: <1432073182-27114-1-git-send-email-stefan@agner.ch> MIME-Version: 1.0 Content-Transfer-Encoding: 7Bit Content-Type: text/plain; charset="us-ascii" X-Provags-ID: V03:K0:uoH//73XtZ6Ec6RqWJULfIQjrH2a3/0ckUwfcKBSUUTgcqUVb8b Sbw3NGaKMLCd0VdWKBW87hQnolg4oYDx77tEaXsQwrN6UIXIvScWL9jyiBI3XJctS6TztHM QC8j6JvH9oy5WIi951K3dE96he6/9oxuSi2xBJPIw5baszA/KjQcONh7t61poK6bQojr0/m vGzFzV8E+kdTRNNZ8dYZw== X-UI-Out-Filterresults: notjunk:1; Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wednesday 20 May 2015 00:06:22 Stefan Agner wrote: > Add defconfig for Linux on Vybrid (vf610) on the secondary Cortex- > M4 CPU. The use of a XIP image has been tested which needs to be > loaded (e.g. using the custom m4boot loader) to the end of the > available RAM at address 0x8f000000. The Cortex-M4 has a code-alias > which makes sure that the instructions get fetched through the code > bus (alias starts at 0x00800000 => 0x80800000 in system address). > Hence, to get optimal performance, use 0x0f000000 as XIP_PHYS_ADDR. > This address is additionally shifted by the length of the minimal > loader which is inserted by m4boot. Currently, this offset is 0x80. > > The standard DRAM base address is configured to 0x8C000000, which > gives the Cortex-M4 48MiB of RAM. > > Signed-off-by: Stefan Agner > Applied to next/defconfig, thanks! Arnd