From mboxrd@z Thu Jan 1 00:00:00 1970 From: Allen Martin Date: Mon, 4 Jun 2012 10:54:39 -0700 Subject: [U-Boot] [PATCH] tegra: override compiler flags for low level init code In-Reply-To: <4FB193F5.5000704@wwwdotorg.org> References: <1336162232-19714-1-git-send-email-amartin@nvidia.com> <1337037279-18562-1-git-send-email-amartin@nvidia.com> <4FB193F5.5000704@wwwdotorg.org> Message-ID: <20120604175439.GA6692@nvidia.com> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de On Mon, May 14, 2012 at 04:23:33PM -0700, Stephen Warren wrote: > 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) Hi Tom, could you pick this up in u-boot-tegra? Without it tegra is currently broken in both u-boot-tegra and u-boot gits depending on the compiler you use. -Allen -- nvpublic