On Tue, Mar 03, 2020 at 12:01:12PM +0200, Tomer Maimon wrote:
> Add device tree three bootstatus reset types documentation.
>
> Signed-off-by: Tomer Maimon <tmaimon77@xxxxxxxxx>
> ---
> .../bindings/watchdog/nuvoton,npcm-wdt.txt | 30 +++++++++++++++++++
> 1 file changed, 30 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
> index 6d593003c933..65e24a80ee70 100644
> --- a/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
> +++ b/Documentation/devicetree/bindings/watchdog/nuvoton,npcm-wdt.txt
> @@ -17,6 +17,33 @@ Required clocking property, have to be one of:
>
> Optional properties:
> - timeout-sec : Contains the watchdog timeout in seconds
> +- nuvoton,card-reset-type : "porst|corst|wd0|wd1|wd2|sw1|sw2|sw3|sw4"
> + Contains the card reset type for checking and indicating
> + the last card reset status (WDIOF_CARDRESET)
> +
> + If 'nuvoton,card-reset-type' is not specified the default is porst
> +
> + Reset types:
> + - porst: Power reset
> + - corst: Core reset
> + - wdX : Watchdog reset X (X represante 0-2)
> + - swX : Software reset X (X represante 1-4)
> +
> +- nuvoton,ext1-reset-type : "porst|corst|wd0|wd1|wd2|sw1|sw2|sw3|sw4"
> + Contains the external 2 reset type for checking and indicating
> + the last external 2 reset status (WDIOF_EXTERN1)
> +
> + If 'nuvoton,card-reset-type' is not specified the default is wd0.
> +
> + Reset types are the same as in nuvoton,card-reset-type property.
> +
> +- nuvoton,ext2-reset-type : "porst|corst|wd0|wd1|wd2|sw1|sw2|sw3|sw4"
> + Contains the external 2 reset type for checking and indicating
> + the last external 2 reset status (WDIOF_EXTERN2)
> +
> + If 'nuvoton,card-reset-type' is not specified the default is sw1.
> +
> + Reset types are the same as in nuvoton,card-reset-type property.
>
> Example:
>
> @@ -25,4 +52,7 @@ timer@f000801c {
> interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
> reg = <0xf000801c 0x4>;
> clocks = <&clk NPCM7XX_CLK_TIMER>;
> + nuvoton,card-reset-type = "porst";
> + nuvoton,ext1-reset-type = "wd1";
> + nuvoton,ext2-reset-type = "sw2";
This set of properties maps chip reset types to reset types defined
by the Linux watchdog subsystem (ie WDIOF_CARDRESET, WDIOF_EXTERN1,
and WDIOF_EXTERN2). It is neither a hardware description nor a system
configuration.
It is up to Rob to decide, but I personally don't think it is appropriate.
Guenter
