diff options
| author | Anton Vorontsov <avorontsov@ru.mvista.com> | 2008-07-03 23:51:34 -0700 |
|---|---|---|
| committer | Wim Van Sebroeck <wim@iguana.be> | 2008-08-06 13:05:12 +0000 |
| commit | 500c919e3d699644cc9d6c1e93022481baafd8e1 (patch) | |
| tree | 4bf64f774303f6adbb8368093cca12170fc3f5ca /mm | |
| parent | ef8ab12ec2d663f9b146c920a4dd589a7e767f2d (diff) | |
| download | blackbird-op-linux-500c919e3d699644cc9d6c1e93022481baafd8e1.tar.gz blackbird-op-linux-500c919e3d699644cc9d6c1e93022481baafd8e1.zip | |
[WATCHDOG] mpc83xx_wdt: add support for MPC86xx CPUs
On MPC86xx the watchdog could be enabled only at power-on-reset, and could
not be disabled afterwards. We must ping the watchdog from the kernel
until the userspace handles it.
MPC83xx CPUs are only differ in a way that watchdog could be disabled
once, but after it was enabled via software it becomes just the same as
MPC86xx.
Thus, to support MPC86xx I added the kernel timer which pings the watchdog
until the userspace opens it.
Since we implemented the timer, now we're able to implement proper
handling for the CONFIG_WATCHDOG_NOWAYOUT case, for MPC83xx and MPC86xx.
Also move the probe code into subsys_initcall, because we want start
pinging the watchdog ASAP, and misc devices are available in
subsys_initcall.
Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com>
Cc: Kumar Gala <galak@kernel.crashing.org>
Signed-off-by: Wim Van Sebroeck <wim@iguana.be>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'mm')
0 files changed, 0 insertions, 0 deletions
