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

[Stephen Warren <swarren@wwwdotorg.org>]

On 06/04/2012 11:54 AM, Allen Martin wrote:
> 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. 

It's been there for a while, I believe, at least in u-boot-tegra/master.