From mboxrd@z Thu Jan 1 00:00:00 1970 From: Albert ARIBAUD Date: Tue, 21 Dec 2010 08:21:39 +0100 Subject: [U-Boot] [RFC PATCH v2] ARM: Avoid compiler optimization for usages of readb, writeb and friends. In-Reply-To: <4D105324.2080201@googlemail.com> References: <1292711230-3234-1-git-send-email-holler@ahsoftware.de> <4D0DB994.1020703@googlemail.com> <4D0DDCEF.2040806@ahsoftware.de> <4D0E643A.9040001@ahsoftware.de> <4D0EA9BB.4050002@ahsoftware.de> <4D0F8E75.2010107@ahsoftware.de> <4D105324.2080201@googlemail.com> Message-ID: <4D105583.8070703@free.fr> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi Dirk, Le 21/12/2010 08:11, Dirk Behme a ?crit : > But the issue with drivers/mtd/nand/omap_gpmc.c (i.e. the additional > ldrb r3, [r3]) is still open? Has anybody tried to replace it with > a nop in the binary to be sure this is the root cause? Can you try and preprocess the C file for both the broken and working cases, then post the preprocessed C extract? Differences at the C level may help understanding differences at the asm level. > Thanks > > Dirk Amicalement, -- Albert.