halt bug fixed

[Ralf Baechle <ralf@xxxxxxxxxxx>]

John,

> CVSROOT:      /home/pub/cvs
> Module name:  linux
> Changes by:   ralf@xxxxxxxxxxx        00/06/07 15:03:47
> 
> Modified files:
>       arch/mips64/sgi-ip27: ip27-reset.c 
> 
> Log message:
>       Reboot was doing halt and halt was crashing the machine, fixed.

this fixes the crash on halt bug for which you recently filed to bugworks.

The support for powerdown (halt -p) is still not implemented.  For me
the PROM powerdown routine doesn't work and the code from IRIX is somewhat
complex, it involves porting elsc.c and i2c.c from IRIX to Linux.  I was
hacking today but it's not yet complete.

  Ralf