[U-Boot] mpc512x: Trouble migrating from 2012.07 to 2013.01

[Mats Kärrman]

Joakim Tjernlund/Transmode wrote on 2013/01/24 09:21:
> Looking at the watchdog impl. I see it can be normal C code. This makes
> wait_ticks unsafe
> (even before my patch) as wait_ticks relies on r6 and r7 (and with my
> patch r0 too)
> to be unmodified.

Yes!
I can see in the assembly from my watchdog_reset() (arch/powerpc/cpu/mpc5125/cpu.c) that it does not touch r7 and r8 but indeed r0 -- for storing lr in fact so the endless loop is explained!

Many thanks!
I'll prepare a patch as soon as I've got one tested.

BR // Mats