[PATCH v2 2/7] dt-bindings: Amlogic: Document the CPU reset controller for Meson8b
From: Carlo Caione <hidden>
Date: 2015-12-02 17:22:28
Also in:
linux-clk, linux-devicetree
Subsystem:
arm/amlogic meson soc clock framework, common clk framework, open firmware and flattened device tree bindings, the rest · Maintainers:
Neil Armstrong, Jerome Brunet, Michael Turquette, Stephen Boyd, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
From: Carlo Caione <redacted> The clock controller on Amlogic Meson8b SoCs has been extended with a reset controller used to reset the CPU cores. It is used during SMP bringup. With this patch we extend the clock controller documentation. Signed-off-by: Carlo Caione <redacted> --- Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt b/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt
index 2b7b3fa..feeb4de 100644
--- a/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt
+++ b/Documentation/devicetree/bindings/clock/amlogic,meson8b-clkc.txt@@ -1,7 +1,8 @@ * Amlogic Meson8b Clock and Reset Unit The Amlogic Meson8b clock controller generates and supplies clock to various -controllers within the SoC. +controllers within the SoC and also implements a reset controller for the CPU +cores. Required Properties:
@@ -13,16 +14,19 @@ Required Properties: mapped region. - #clock-cells: should be 1. +- #reset-cells: should be 1. Each clock is assigned an identifier and client nodes can use this identifier to specify the clock which they consume. All available clocks are defined as preprocessor macros in the dt-bindings/clock/meson8b-clkc.h header and can be used in device tree sources. +Similar identifiers exist for the CPU core reset lines. Example: Clock controller node: clkc: clock-controller at c1104000 { #clock-cells = <1>; + #reset-cells = <1>; compatible = "amlogic,meson8b-clkc"; reg = <0xc1108000 0x4>, <0xc1104000 0x460>; };
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2.5.0