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| author | Ivan Mikhaylov <ivan@de.ibm.com> | 2017-05-19 18:47:05 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-05-30 07:59:51 +0300 |
| commit | 6e2f03e292ef46eed2b31b0a344a91d514f9cd81 (patch) | |
| tree | fc20bfd1e8f49c361bbe28a572bcff12a9fdba0c /arch/powerpc/include/uapi/asm/Kbuild | |
| parent | 20975a0ae1ccc59a21a149e2fd2964ce88edb0a9 (diff) | |
| download | linux-6e2f03e292ef46eed2b31b0a344a91d514f9cd81.tar.xz | |
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>
Diffstat (limited to 'arch/powerpc/include/uapi/asm/Kbuild')
0 files changed, 0 insertions, 0 deletions