On Sun, Jan 27, 2013 at 07:03:44AM -0000, =?utf-8?b?TWF0cyBLw6Rycm1hbiA8TWF0cy5LYXJybWFuQHRyaXRlY2guc2U+?= wrote:
> If watchdog is enabled, the arch/powerpc/lib/ticks.S::wait_ticks() function > calls the function specified by the WATCHDOG_RESET macro. > The wait_ticks function depends on the registers r0, r6 and r7 being > preserved however that is not guaranteed, e.g. if the reset function is a > C function this will probably overwrite r0 and cause an endless loop. > > The following patch changes to using r14+r15 instead of r6+r7 (to resemble > what would have been generated by a C compiler) and saves all necessary > registers on the stack. > > The patch has been tested on a custom MPC5125 based machine using the 512x > powerpc architecture. > > Signed-off-by: Mats Karrman <mats.karr...@tritech.se> > Cc: Wolfgang Denk <w...@denx.de> > Acked-by: Joakim Tjernlund <joakim.tjernl...@transmode.se> > Tested-by: Stefan Roese <s...@denx.de> This does not cleanly apply to u-boot/master, can you please resend based on top of tree? Thanks! -- Tom
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