From mboxrd@z Thu Jan 1 00:00:00 1970 From: Stephen Warren Date: Mon, 14 May 2012 17:23:33 -0600 Subject: [U-Boot] [PATCH] tegra: override compiler flags for low level init code In-Reply-To: <1337037279-18562-1-git-send-email-amartin@nvidia.com> References: <1336162232-19714-1-git-send-email-amartin@nvidia.com> <1337037279-18562-1-git-send-email-amartin@nvidia.com> Message-ID: <4FB193F5.5000704@wwwdotorg.org> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On 05/14/2012 05:14 PM, Allen Martin wrote: > Override -march setting for tegra to -march=armv4t for files that are > necessary for low level init on tegra. > > The recent change to use -march=armv7-a for armv7 caused a regression > on tegra because tegra starts boot on a arm7tdmi processor before > transferring control to the cortex-a9. While still executing on the > arm7tdmi there are calls to getenv_ulong() and memset() that cause an > illegal instruction exception if compiled for armv7. > > Signed-off-by: Allen Martin Tested-by: Stephen Warren (This seems to be necessary to use gcc-4.6.1, but not gcc-4.5.3. The Whistler patches I just sent were tested with this fix in place)