On Wed, Aug 03, 2016 at 04:05:21PM -0700, John Stultz wrote:
> Add device tree binding document for reboot-mode driver
>
> Cc: Andy Yan <andy.yan@xxxxxxxxxxxxxx>
> Cc: Rob Herring <robh@xxxxxxxxxx>
> Cc: Arnd Bergmann <arnd@xxxxxxxx>
> Cc: Thierry Reding <treding@xxxxxxxxxx>
> Cc: Heiko Stübner <heiko@xxxxxxxxx>
> Cc: Caesar Wang <wxt@xxxxxxxxxxxxxx>
> Cc: Kees Cook <keescook@xxxxxxxxxxxx>
> Cc: Guodong Xu <guodong.xu@xxxxxxxxxx>
> Cc: Haojian Zhuang <haojian.zhuang@xxxxxxxxxx>
> Cc: Vishal Bhoj <vishal.bhoj@xxxxxxxxxx>
> Cc: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: Android Kernel Team <kernel-team@xxxxxxxxxxx>
> Signed-off-by: John Stultz <john.stultz@xxxxxxxxxx>
> ---
> .../bindings/power/reset/sram-reboot-mode.txt | 35 ++++++++++++++++++++++
> 1 file changed, 35 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/power/reset/sram-reboot-mode.txt
>
> diff --git a/Documentation/devicetree/bindings/power/reset/sram-reboot-mode.txt b/Documentation/devicetree/bindings/power/reset/sram-reboot-mode.txt
> new file mode 100644
> index 0000000..0a0ed05
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/power/reset/sram-reboot-mode.txt
> @@ -0,0 +1,35 @@
> +SRAM reboot mode driver
Bindings don't describe drivers.
> +
> +This driver get reboot mode magic value form reboot-mode driver
s/form/from/
> +and stores it in a SRAM address. Then the bootloader
> +can read it and take different action according to the magic
> +value stored.
Might say "on the next reboot" somewhere in here.
> +
> +This DT node should be represented as a sub-node of a "mmio-sram" node.
> +
> +Required properties:
> +- compatible: should be "sram-reboot-mode"
> +- reg: offset from the sram range where to store the magic value(in bytes)
> +
> +The rest of the properties should follow the generic reboot-mode discription
> +found in reboot-mode.txt
> +
> +Example:
> +
> + sram@5f01000 {
> + compatible = "mmio-sram";
> + reg = <0x0 0x05f01000 0x0 0x00001000>;
> + ranges = <0x0 0x0 0x05f01000 0x00001000>;
> +
> + #address-cells = <1>;
> + #size-cells = <1>;
> +
> + reboot-mode@0 {
> + compatible = "sram-reboot-mode";
> + reg = <0x0 0x4>;
> +
> + mode-normal = <0x77665501>;
> + mode-bootloader = <0x77665500>;
> + mode-recovery = <0x77665502>;
> + };
> + };
> --
> 1.9.1
>
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