[PATCH] ppc44x/watchdog: Select WATCHDOG_NOWAYOUT option

[Kumar Gala]

On Jul 12, 2012, at 9:44 PM, Jiang Lu wrote:

> On PPC44x core, the WRC(Watchdog-timer Reset Control) field of TCR
> of timer can not reset by software after set to a non-zero value.
> Which means software can not reset the timeout behaviour of watchdog timer.
> 
> This patch selects WATCHDOG_NOWAYOUT option for 44x platforms to
> indicate the watchdog timer can not be disabled once fired.
> 
> Signed-off-by: Jiang Lu <lu.jiang at windriver.com>
> ---
> drivers/watchdog/Kconfig |    1 +
> 1 files changed, 1 insertions(+), 0 deletions(-)

I believe this is not 44x specific, but how Book-E watchdog is architected.

> 
> diff --git a/drivers/watchdog/Kconfig b/drivers/watchdog/Kconfig
> index 3709624..41f3dff 100644
> --- a/drivers/watchdog/Kconfig
> +++ b/drivers/watchdog/Kconfig
> @@ -1084,6 +1084,7 @@ config PIKA_WDT
> config BOOKE_WDT
> 	tristate "PowerPC Book-E Watchdog Timer"
> 	depends on BOOKE || 4xx
> +	select WATCHDOG_NOWAYOUT if 44x

This should probably be 'select WATCHDOG_NOWAYOUT if BOOKE'

> 	---help---
> 	  Watchdog driver for PowerPC Book-E chips, such as the Freescale
> 	  MPC85xx SOCs and the IBM PowerPC 440.
> -- 
> 1.7.7
> 
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