Ivan Mikhaylov 6e2f03e292 powerpc/[booke|4xx]: Don't clobber TCR[WP] when setting TCR[DIE]
Prevent a kernel panic caused by unintentionally clearing TCR watchdog
bits. At this point in the kernel boot, the watchdog may have already
been enabled by u-boot. The original code's attempt to write to the TCR
register results in an inadvertent clearing of the watchdog
configuration bits, causing the 476 to reset.

Signed-off-by: Ivan Mikhaylov <ivan@de.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
2017-05-30 14:59:51 +10:00
..
2017-02-22 10:30:38 -08:00
2016-12-25 17:21:22 +01:00
2017-05-12 10:04:09 -07:00
2017-05-30 14:59:51 +10:00