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 + +This driver get reboot mode magic value form reboot-mode driver +and stores it in a SRAM address. Then the bootloader +can read it and take different action according to the magic +value stored. + +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 -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html