[U-Boot] [PATCH] tegra: override compiler flags for low level init code

[Allen Martin <amartin@nvidia.com>]

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 <amartin@nvidia.com>
> 
> Tested-by: Stephen Warren <swarren@wwwdotorg.org>
> 
> (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