[resend v2: PATCH 1/2] dt-bindings: Document the hi3660 reset bindings
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From: zhangfei.gao@linaro.org (Zhangfei Gao)
Date: 2016-12-01 00:48:40
Also in:
linux-devicetree
Subsystem:
open firmware and flattened device tree bindings, reset controller framework, the rest · Maintainers:
Rob Herring, Krzysztof Kozlowski, Conor Dooley, Philipp Zabel, Linus Torvalds
Possibly related (same subject, not in this thread)
- 2016-12-06 · Re: [resend v2: PATCH 1/2] dt-bindings: Document the hi3660 reset bindings · Philipp Zabel <hidden>
- 2016-12-06 · Re: [resend v2: PATCH 1/2] dt-bindings: Document the hi3660 reset bindings · Philipp Zabel <hidden>
- 2016-12-06 · Re: [resend v2: PATCH 1/2] dt-bindings: Document the hi3660 reset bindings · zhangfei <hidden>
- 2016-12-05 · Re: [resend v2: PATCH 1/2] dt-bindings: Document the hi3660 reset bindings · Rob Herring <hidden>
- 2016-12-02 · Re: [resend v2: PATCH 1/2] dt-bindings: Document the hi3660 reset bindings · Arnd Bergmann <arnd@arndb.de>
Add DT bindings documentation for hi3660 SoC reset controller. Signed-off-by: Zhangfei Gao <zhangfei.gao@linaro.org> --- .../bindings/reset/hisilicon,hi3660-reset.txt | 51 ++++++++++++++++++++++ 1 file changed, 51 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..250daf2
--- /dev/null
+++ b/Documentation/devicetree/bindings/reset/hisilicon,hi3660-reset.txt@@ -0,0 +1,51 @@ +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" +- #reset-cells: 1, see below +- hisi,rst-syscon: phandle of the reset's syscon. +- hisi,reset-bits: Contains the reset control register information + Should contain 2 cells for each reset exposed to + consumers, defined as: + Cell #1 : offset from the syscon register base + Cell #2 : bits position of the 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"; + #reset-cells = <1>; + hisi,rst-syscon = <&iomcu>; + hisi,reset-bits = <0x20 0x8 /* 0: i2c0 */ + 0x20 0x10 /* 1: i2c1 */ + 0x20 0x20 /* 2: i2c2 */ + 0x20 0x8000000>; /* 3: i2c6 */ + }; + +Specifying reset lines connected to IP modules +============================================== +example: + + i2c0: i2c at ..... { + ... + resets = <&iomcu_rst 0>; + ... + }; + + i2c1: i2c at ..... { + ... + resets = <&iomcu_rst 1>; + ... + };
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2.7.4