[PATCH 2.6.12] ppc32: Fix Sandpoint Soft Reboot

[Mark A. Greer]

ppc32: Fix Sandpoint Soft Reboot

This patch allows the Freescale Sandpoint to perform soft reboots. A 
write of 0x00 to the Winbond's Chip Select Control Register was clearing 
the Upper BIOS Chip Select Enable bit which unmaps the boot flash. The 
comment associated with the write noted that it was enabling the RTC and 
Keyboard address locations, but the bits in question (1 and 0) are 
reserved when the Winbond chip is in PowerPC mode. Also, the bits are 1 
for enable, 0 for disable, therefore the original code was actually 
disabling the address locations. The patch also corrects errors in the 
definitions of 2 configuration bits in the Tundra Tsi107 bridge's MAPB 
Options register.

Signed-off-by Randy Vinson <rvinson at mvista.com>
Signed-off-by Mark A. Greer <mgreer at mvista.com>
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