[PATCH] dt-bindings: Document the hi3660 reset bindings
From: Zhangfei Gao <hidden>
Date: 2016-12-09 02:11:44
Add DT bindings documentation for hi3660 SoC reset controller. Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> --- .../bindings/reset/hisilicon,hi3660-reset.txt | 43 ++++++++++++++++++++++ 1 file changed, 43 insertions(+) create mode 100644 Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt
diff --git a/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt
new file mode 100644
index 0000000..2bf3344
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt@@ -0,0 +1,43 @@ +Hisilicon System Reset Controller +====================================== + +Please also refer to reset.txt in this directory for common reset +controller binding usage. + +The reset controller registers are part of the system-ctl block on +hi3660 SoC. + +Required properties: +- compatible: should be + "hisilicon,hi3660-reset" +- hisi,rst-syscon: phandle of the reset's syscon. +- #reset-cells : Specifies the number of cells needed to encode a + reset source. The type shall be a <u32> and the value shall be 2. + + Cell #1 : offset of the reset assert control + register from the syscon register base + offset + 4: deassert control register + offset + 8: status control register + Cell #2 : bit position of the reset in the reset control register + +Example: + iomcu: iomcu at ffd7e000 { + compatible = "hisilicon,hi3660-iomcu", "syscon"; + reg = <0x0 0xffd7e000 0x0 0x1000>; + }; + + iomcu_rst: iomcu_rst_controller { + compatible = "hisilicon,hi3660-reset"; + hisi,rst-syscon = <&iomcu>; + #reset-cells = <2>; + }; + +Specifying reset lines connected to IP modules +============================================== +example: + + i2c0: i2c at ..... { + ... + resets = <&iomcu_rst 0x20 3>; /* offset: 0x20; bit: 3 */ + ... + };
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2.7.4