[U-Boot] p4080ds starts OS with MSR[EE]=1 and DEC armed?

Scott Wood scottwood at freescale.com
Mon Mar 14 19:09:17 CET 2011


On Sat, 12 Mar 2011 16:56:09 -0600
Kumar Gala <galak at kernel.crashing.org> wrote:

> 
> On Mar 3, 2011, at 8:59 AM, Jimi Xenidis wrote:
> 
> > I was surprised to find myself at the decrement interrupt when running my new stuff.
> > That is against ePAPR, right?
> > Does u-boot at least make sure that the DEC is set to some large value before it leaps at me?
> > I don't mind forcing EE=0 but I'd like to make sure I make it that far into the code :)
> > -JX
> 
> Jimi,
> 
> Not sure how or why you are seeing this, but u-boot should disable interrupts in common/cmd_bootm.c
> 
> Look for disable_interrupts() -> this should set MSR[EE] = 0.

What about the rest of MSR -- ME/CE/DE?

-Scott



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