docs: dts: Added documentation for hi6220 Reset Controller
Signed-off-by: Chen Feng <puck.c...@hisilicon.com>
---
.../bindings/reset/hisilicon,hi6220-reset.txt | 32 ++++++++++++++++++++++
1 file changed, 32 insertions(+)
create mode 100644
Documentation/devicetree/bindings/reset/hisilicon,hi6220-reset.txt
diff --git a/Documentation/devicetree/bindings/reset/hisilicon,hi6220-reset.txt
b/Documentation/devicetree/bindings/reset/hisilicon,hi6220-reset.txt
new file mode 100644
index 0000000..02a8dae
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/hisilicon,hi6220-reset.txt
@@ -0,0 +1,32 @@
+Hisilicon System Reset Controller
+======================================
+
+Please also refer to reset.txt in this directory for common reset
+controller binding usage.
+
+The reset controller node must be a sub-node of the chip controller
+node on SoCs.
+
+Required properties:
+- compatible: may be "hisilicon,hi6220-reset-ctl"
+- reg: should be register base and length as documented in the
+ datasheet
+- #reset-cells: 1, see below
+
+Example:
+
+reset_ctrl: reset_ctrl@f7030000 {
+compatible = "hisilicon,hi6220-reset-ctl";
+reg = <0x0 0xf7030000 0x0 0x1000>;
+#reset-cells = <1>;
+};
+
+Specifying reset lines connected to IP modules
+==============================================
+example:
+
+ uart1: uart1@..... {
+ ...
+ resets = <&reset_ctrl 0x305>;
+ ...
+ };
--
1.9.1
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