On 27 September 2013 15:46, Leela Krishna Amudala <l.krishna@xxxxxxxxxxx> wrote:
> This patch parses the watchdog node to read pmu wdt sys registers addresses
> and do mask/unmask enable/disable of WDT in probe and s2r scenarios.
>
> Signed-off-by: Leela Krishna Amudala <l.krishna@xxxxxxxxxxx>
> ---
> .../devicetree/bindings/watchdog/samsung-wdt.txt | 24 ++++-
> drivers/watchdog/s3c2410_wdt.c | 94 ++++++++++++++++++--
> 2 files changed, 108 insertions(+), 10 deletions(-)
>
> diff --git a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
> index 2aa486c..f78b802 100644
> --- a/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
> +++ b/Documentation/devicetree/bindings/watchdog/samsung-wdt.txt
> @@ -5,10 +5,30 @@ after a preset amount of time during which the WDT reset event has not
> occurred.
>
> Required properties:
> -- compatible : should be "samsung,s3c2410-wdt"
> +- compatible : should be "samsung,s3c2410-wdt" or "samsung,s3c5250-wdt"
It would also be helpful to mention the SoCs along with the compatibles strings.
> - reg : base physical address of the controller and length of memory mapped
> - region.
> + region and additional (addresses and length of memory mapped regions
> + of) PMU registers for masking/unmasking WDT only in case of Exynos5250 and 5420.
> - interrupts : interrupt number to the cpu.
> +- reset-mask-bit: bit number in the PMU registers to program mask/unmask WDT (required only
> + in case of Exynos5250 and 5420).
>
> Optional properties:
> - timeout-sec : contains the watchdog timeout in seconds.
> +
> +Examples:
> +
> +watchdog {
watchdog@101D0000
> + compatible = "samsung,s3c2410-wdt";
> + reg = <0x101D0000 0x100>;
> + interrupts = <0 42 0>;
> + status = "disabled";
> +};
> +
> +watchdog {
ditto
> + compatible = "samsung,s3c5250-wdt";
> + reg = <0x101D0000 0x100>, <0x10040408 0x4>, <0x1004040c 0x4>;
--
With warm regards,
Sachin
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