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dt-bindings: mfd: Add Broadcom CRU
CRU is a block used in e.g. Northstar devices. It can be seen in the bcm5301x.dtsi and this binding documents its proper usage. Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Lee Jones <lee.jones@linaro.org>
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Documentation/devicetree/bindings/mfd/brcm,cru.yaml
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Documentation/devicetree/bindings/mfd/brcm,cru.yaml
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# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/mfd/brcm,cru.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Broadcom CRU
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maintainers:
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- Rafał Miłecki <rafal@milecki.pl>
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description: |
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Broadcom CRU ("Clock and Reset Unit" or "Central Resource Unit") is a hardware
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block grouping smaller blocks. On Broadcom Northstar platform it contains e.g.
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clocks, pinctrl, USB PHY and thermal.
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properties:
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compatible:
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items:
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- enum:
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- brcm,ns-cru
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- const: simple-mfd
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reg:
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description: CRU registers
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ranges: true
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"#address-cells":
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const: 1
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"#size-cells":
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const: 1
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pinctrl:
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$ref: ../pinctrl/brcm,ns-pinmux.yaml
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patternProperties:
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'^clock-controller@[a-f0-9]+$':
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$ref: ../clock/brcm,iproc-clocks.yaml
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'^thermal@[a-f0-9]+$':
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$ref: ../thermal/brcm,ns-thermal.yaml
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additionalProperties: false
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required:
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- reg
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examples:
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- |
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cru-bus@1800c100 {
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compatible = "brcm,ns-cru", "simple-mfd";
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reg = <0x1800c100 0x1d0>;
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ranges;
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#address-cells = <1>;
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#size-cells = <1>;
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clock-controller@100 {
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#clock-cells = <1>;
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compatible = "brcm,nsp-lcpll0";
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reg = <0x100 0x14>;
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clocks = <&osc>;
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clock-output-names = "lcpll0", "pcie_phy", "sdio", "ddr_phy";
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};
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clock-controller@140 {
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#clock-cells = <1>;
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compatible = "brcm,nsp-genpll";
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reg = <0x140 0x24>;
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clocks = <&osc>;
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clock-output-names = "genpll", "phy", "ethernetclk", "usbclk",
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"iprocfast", "sata1", "sata2";
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};
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pinctrl {
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compatible = "brcm,bcm4708-pinmux";
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offset = <0x1c0>;
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};
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thermal@2c0 {
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compatible = "brcm,ns-thermal";
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reg = <0x2c0 0x10>;
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#thermal-sensor-cells = <0>;
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};
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};
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