Adds device tree binding documentation for system controller node present in Mediatek MIPS and Ralink SOCs. This node is a clock and reset provider for the rest of the world. This covers RT2880, RT3050, RT3052, RT3350, RT3883, RT5350, MT7620, MT7628 and MT7688 SoCs. Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Acked-by: Stephen Boyd <sboyd@xxxxxxxxxx> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx> --- .../bindings/clock/mediatek,mtmips-sysc.yaml | 64 +++++++++++++++++++ 1 file changed, 64 insertions(+) create mode 100644 Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml diff --git a/Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml b/Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml new file mode 100644 index 000000000000..ba7ffc5b16a0 --- /dev/null +++ b/Documentation/devicetree/bindings/clock/mediatek,mtmips-sysc.yaml @@ -0,0 +1,64 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/clock/mediatek,mtmips-sysc.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: MTMIPS SoCs System Controller + +maintainers: + - Sergio Paracuellos <sergio.paracuellos@xxxxxxxxx> + +description: | + MediaTek MIPS and Ralink SoCs provides a system controller to allow + to access to system control registers. These registers include clock + and reset related ones so this node is both clock and reset provider + for the rest of the world. + + These SoCs have an XTAL from where the cpu clock is + provided as well as derived clocks for the bus and the peripherals. + +properties: + compatible: + items: + - enum: + - ralink,mt7620-sysc + - ralink,mt7628-sysc + - ralink,mt7688-sysc + - ralink,rt2880-sysc + - ralink,rt3050-sysc + - ralink,rt3052-sysc + - ralink,rt3352-sysc + - ralink,rt3883-sysc + - ralink,rt5350-sysc + - const: syscon + + reg: + maxItems: 1 + + '#clock-cells': + description: + The first cell indicates the clock number. + const: 1 + + '#reset-cells': + description: + The first cell indicates the reset bit within the register. + const: 1 + +required: + - compatible + - reg + - '#clock-cells' + - '#reset-cells' + +additionalProperties: false + +examples: + - | + syscon@0 { + compatible = "ralink,rt5350-sysc", "syscon"; + reg = <0x0 0x100>; + #clock-cells = <1>; + #reset-cells = <1>; + }; -- 2.25.1
