diff --git a/Documentation/devicetree/bindings/mfd/brcm,cru.yaml b/Documentation/devicetree/bindings/mfd/brcm,cru.yaml new file mode 100644 index 000000000000..fc1317ab3226 --- /dev/null +++ b/Documentation/devicetree/bindings/mfd/brcm,cru.yaml @@ -0,0 +1,86 @@ +# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mfd/brcm,cru.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: Broadcom CRU + +maintainers: + - Rafał Miłecki + +description: | + Broadcom CRU ("Clock and Reset Unit" or "Central Resource Unit") is a hardware + block grouping smaller blocks. On Broadcom Northstar platform it contains e.g. + clocks, pinctrl, USB PHY and thermal. + +properties: + compatible: + items: + - enum: + - brcm,ns-cru + - const: simple-mfd + + reg: + description: CRU registers + + ranges: true + + "#address-cells": + const: 1 + + "#size-cells": + const: 1 + + pinctrl: + $ref: ../pinctrl/brcm,ns-pinmux.yaml + +patternProperties: + '^clock-controller@[a-f0-9]+$': + $ref: ../clock/brcm,iproc-clocks.yaml + + '^thermal@[a-f0-9]+$': + $ref: ../thermal/brcm,ns-thermal.yaml + +additionalProperties: false + +required: + - reg + +examples: + - | + cru-bus@1800c100 { + compatible = "brcm,ns-cru", "simple-mfd"; + reg = <0x1800c100 0x1d0>; + ranges; + #address-cells = <1>; + #size-cells = <1>; + + clock-controller@100 { + #clock-cells = <1>; + compatible = "brcm,nsp-lcpll0"; + reg = <0x100 0x14>; + clocks = <&osc>; + clock-output-names = "lcpll0", "pcie_phy", "sdio", "ddr_phy"; + }; + + clock-controller@140 { + #clock-cells = <1>; + compatible = "brcm,nsp-genpll"; + reg = <0x140 0x24>; + clocks = <&osc>; + clock-output-names = "genpll", "phy", "ethernetclk", "usbclk", + "iprocfast", "sata1", "sata2"; + }; + + pinctrl { + compatible = "brcm,bcm4708-pinmux"; + offset = <0x1c0>; + }; + + thermal@2c0 { + compatible = "brcm,ns-thermal"; + reg = <0x2c0 0x10>; + #thermal-sensor-cells = <0>; + }; + };