[PATCH/RFCv2] wdt: Add support for PowerQUICC watchdog
Kumar Gala
galak at kernel.crashing.org
Fri Jan 18 01:31:26 EST 2008
On Jan 17, 2008, at 6:47 AM, Jochen Friedrich wrote:
> The PowerQUICC series has a watchdog which can be activated by the
> boot
> loader and then needs to be reset in regular intervals. Once the
> watchdog is enabled, it can't be disabled anymore. This patch adds
> support for this kind of watchdog. An early init function is
> provided to
> manually reset the watchdog in early board setup. Later, a kernel
> timer
> is used to reset the watchdog until the watchdog driver is opened from
> user space. This replaces mpc8xx_wdt.c (only usable for ARCH=ppc) and
> mpc83xx_wdt.c (untested on this platform).
Why are you commenting on mpc83xx_wdt with respect to pq1_wdt?
Also, is this driver just for PQ1 platforms or PQ1 & PQ2? If its just
pq1 we should probably call it pq1_wdt*
> Signed-off-by: Jochen Friedrich <jochen at scram.de>
> ---
> arch/powerpc/platforms/8xx/mpc86xads_setup.c | 5 +
> arch/powerpc/platforms/8xx/mpc885ads_setup.c | 5 +
> arch/powerpc/sysdev/Makefile | 3 +
> arch/powerpc/sysdev/pq_wdt.c | 203 +++++++++++++++++
> ++++++
> arch/powerpc/sysdev/pq_wdt.h | 28 ++++
> drivers/watchdog/Kconfig | 13 ++-
> drivers/watchdog/Makefile | 1 +
> drivers/watchdog/pq_wdt.c | 225 +++++++++++++++++
> +++++++++
> 8 files changed, 482 insertions(+), 1 deletions(-)
> create mode 100644 arch/powerpc/sysdev/pq_wdt.c
> create mode 100644 arch/powerpc/sysdev/pq_wdt.h
> create mode 100644 drivers/watchdog/pq_wdt.c
What are the bits in sysdev/pq_wdt.{c,h}. Why aren't these just in
drivers/watchdog?
- k
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