[PATCH] powerpc: Disable external interrupts in bootwrapper

Geoff Levand geoffrey.levand at am.sony.com
Wed Mar 28 11:05:11 EST 2007


Mark A. Greer wrote:
> Disable external interrupts very early in the bootwrapper in case
> the firmware left a device generating interrupts.

This is just a guess at what is happening, but I think the OF on my
G5 uses the timer interrupt as a kind of watchdog timer, so that if
the loaded code hangs, OF will regain control.  If you disable
interrupts, you may loose this functionality.

-Geoff




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