On Wed, Aug 15, 2012 at 01:44:17PM -0700, 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-v8
Changes: v8:
- rebased to u-boot-tegra/master
- added changes to work with "arm: Provide lowlevel_init C function
wrapper for v7"
- Moved JTAG init in SPL to earlier
- fixed TEXT_BASE in SPL to use SPL TEXT_BASE not main u-boot
TEXT_BASE
- pad exception handlers in arm720t to 64 bytes with 0x12345678 to
match armv7
Two additional changes I neglected to mention: - added another tegra2->tegra20 rename for some new code that was added to arch/arm/cpu/armv7/start.S - rolled in the mkconfig fix that was breaking ARM platforms that don't define SoC
-Allen