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path: root/drivers/watchdog/mpc8xxx_wdt.c
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2008-08-26[WATCHDOG] mpc8xxx_wdt: fix modular buildAnton Vorontsov
Fix the following build error when mpc8xxx_wdt is selected to build as a module: drivers/watchdog/mpc8xxx_wdt.c:304: error: redefinition of '__inittest' drivers/watchdog/mpc8xxx_wdt.c:298: error: previous definition of '__inittest' was here drivers/watchdog/mpc8xxx_wdt.c:304: error: redefinition of 'init_module' drivers/watchdog/mpc8xxx_wdt.c:298: error: previous definition of 'init_module' was here Reported-by: Dave Jones <davej@redhat.com> Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Signed-off-by: Wim Van Sebroeck <wim@iguana.be> Cc: Adrian Bunk <bunk@kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2008-08-06[WATCHDOG] mpc8xxx_wdt: add support for MPC8xx watchdogsAnton Vorontsov
The mpc8xxx_wdt driver is using two registers: SWSRR to push magic numbers, and SWCRR to control the watchdog. Both registers are available on the MPC8xx, and seem to have the same offsets and semantics as in MPC83xx/MPC86xx watchdogs. The only difference is prescale value. So this driver simply works on the MPC8xx CPUs. One quirk is needed for the MPC8xx, though. It has small prescale value and slow CPU, so the watchdog resets board prior to the driver has time to load. To solve this we should split initialization in two steps: start ping the watchdog early, and register the watchdog userspace interface later. MPC823 seem to be the first CPU in MPC8xx line, so we use fsl,mpc823-wdt compatible matching. Signed-off-by: Anton Vorontsov <avorontsov@ru.mvista.com> Tested-by: Jochen Friedrich <jochen@scram.de> 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>
2008-08-06[WATCHDOG] mpc8xxx_wdt: fix buildAnton Vorontsov
CC drivers/watchdog/mpc8xxx_wdt.o drivers/watchdog/mpc8xxx_wdt.c: In function 'mpc8xxx_wdt_ioctl': drivers/watchdog/mpc8xxx_wdt.c:156: error: 'cmd' undeclared (first use in this function) drivers/watchdog/mpc8xxx_wdt.c:156: error: (Each undeclared identifier is reported only once drivers/watchdog/mpc8xxx_wdt.c:156: error: for each function it appears in.) drivers/watchdog/mpc8xxx_wdt.c: At top level: drivers/watchdog/mpc8xxx_wdt.c:176: warning: initialization from incompatible pointer type This patch ought to be folded into mpc8xxx_wdt-various-renames-mostly-s-mpc83xx-mpc8xxx-g.patch 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>
2008-08-06[WATCHDOG] mpc8xxx_wdt: various renames, mostly s/mpc83xx/mpc8xxx/gAnton Vorontsov
mpc83xx_wdt.c renamed to mpc8xxx_wdt.c, now we can do various renames in the file itself. 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>
2008-08-06[WATCHDOG] mpc83xx_wdt: rename to mpc8xxx_wdtAnton Vorontsov
Rename the driver because now we support some MPC86xx processors. There are no changes to the mpc83xx_wdt.c file, yet. When possible, we do file renames and changes separately (because Linus once asked so, because it helps git to track the renamed files). 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>