Add device tree binding document for rockchip reboot-mode driver
Signed-off-by: Andy Yan <andy.yan@xxxxxxxxxxxxxx>
---
.../bindings/soc/rockchip/rockchip,reboot-mode.txt | 39 ++++++++++++++++++++++
1 file changed, 39 insertions(+)
create mode 100644 Documentation/devicetree/bindings/soc/rockchip/rockchip,reboot-mode.txt
diff --git a/Documentation/devicetree/bindings/soc/rockchip/rockchip,reboot-mode.txt b/Documentation/devicetree/bindings/soc/rockchip/rockchip,reboot-mode.txt
new file mode 100644
index 0000000..ede8509
--- /dev/null
+++ b/Documentation/devicetree/bindings/soc/rockchip/rockchip,reboot-mode.txt
@@ -0,0 +1,39 @@
+Rockchip reboot mode driver
+
+This driver get reboot mode arguments from userspace
+and stores it in special register. Then the bootloader
+will read it and take different action according the
+argument stored.
+
+Required properties:
+- compatible: should be "rockchip,reboot-mode"
+- regmap: this is phandle to the register map node
+- offset: offset in the register map for the storage register (in bytes)
+The rest of the properties should follow the generic reboot-mode discription
+found in ../../misc/reboot-mode.txt
+
+Examples:
+ reboot_mode {
+ compatible = "rockchip,reboot-mode";
+ rockchip,regmap = <&pmu>;
+ offset = <0x40>;
+ loader {
+ linux,mode = "loader";
+ linux,magic = <0x5242C301>;
+ };
+
+ maskrom {
+ linux,mode = "maskrom";
+ linux,magic = <0x5242C302>;
+ };
+
+ recovery {
+ linux,mode = "recovery";
+ linux,magic = <0x5242C303>;
+ };
+
+ fastboot {
+ linux,mode = "fastboot";
+ linux,magic = <0x5242C309>;
+ };
+ };
--
1.9.1
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