[U-Boot] [PATCH v5 00/13] split tegra20 arm7 code into separate SPL

Stephen Warren swarren at wwwdotorg.org
Tue Jun 26 01:04:28 CEST 2012


On 06/25/2012 04:55 PM, Allen Martin wrote:
> This patch series fixes a long standing problem with the tegra20
> u-boot build.  Tegra20 contains an ARM7TDMI boot processor and a
> Cortex A9 main processor.  Prior to this patch series this was
> accomplished by #ifdefing out any armv7 code from the early boot
> sequence and creating a single binary that runs on both both the
> ARM7TDMI and A9.  This was very fragile as changes to compiler options
> or any additions or rearranging of the early boot code could add
> additional armv7 specific code causing it to fail on the ARM7TDMI.
> 
> This patch series pulls all the armv4t code out into a separate SPL
> that does nothing more than initialize the A9 and transfer control to
> it.  The resultint SPL and armv7 u-boot are concatenated together into
> a single image.
> 
> This patch series is also available from:
> git://github.com/arm000/u-boot.git
> branch: tegra-spl-v5
> 
> Changes:
> v5:
>  - added missing mkdir rules in all tegra20 board Makefiles that
>  include common code and changed them to be unconditional
>  - make new u-boot-dtb-t2.bin rule default for tegra20 and copy
>  resulting binary over u-boot.bin

Doesn't that then destroy the original u-boot.bin so it can't be inspected?


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