Re: common ieee1275 code

[Hollis Blanchard]

On Jul 14, 2005, at 4:55 AM, Marco Gerards wrote:
> > I will note that one related file is still left:
> > kern/powerpc/ieee1275/openfw.c. That file contains some
> > PowerPC-specific code, such as grub_map, grub_reboot, and
> > grub_halt. However, it also contains code that I think will be
> > generally useful, such as device tree path parsing and
> > grub_devalias_iterate. I will leave it to others to determine how to
> > split that up.
>
> Why won't those functions work on the usparc?  I hope Vincent can test
> those commands.

grub_map is necessarily processor-specific; it includes MMU permission 
bits. I also don't know if it's a method of the cpu node found via 
/chosen/mmu.

"reboot" and "halt" commands are not specified by IEEE1275, so vary by 
implementation. For example, although "reset-all" works on both Mac and 
pSeries, "shut-down" doesn't work on pSeries. The odds of OpenBoot 
diverging here are pretty good.

-Hollis