brcm,cru.yaml

  1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
  2%YAML 1.2
  3---
  4$id: http://devicetree.org/schemas/mfd/brcm,cru.yaml#
  5$schema: http://devicetree.org/meta-schemas/core.yaml#
  6
  7title: Broadcom CRU
  8
  9maintainers:
 10  - Rafał Miłecki <rafal@milecki.pl>
 11
 12description: |
 13  Broadcom CRU ("Clock and Reset Unit" or "Central Resource Unit") is a hardware
 14  block grouping smaller blocks. On Broadcom Northstar platform it contains e.g.
 15  clocks, pinctrl, USB PHY and thermal.
 16
 17properties:
 18  compatible:
 19    items:
 20      - enum:
 21          - brcm,ns-cru
 22      - const: simple-mfd
 23
 24  reg:
 25    description: CRU registers
 26
 27  ranges: true
 28
 29  "#address-cells":
 30    const: 1
 31
 32  "#size-cells":
 33    const: 1
 34
 35patternProperties:
 36  '^clock-controller@[a-f0-9]+$':
 37    $ref: /schemas/clock/brcm,iproc-clocks.yaml
 38
 39  '^phy@[a-f0-9]+$':
 40    $ref: /schemas/phy/bcm-ns-usb2-phy.yaml
 41
 42  '^pinctrl@[a-f0-9]+$':
 43    $ref: /schemas/pinctrl/brcm,ns-pinmux.yaml
 44
 45  '^syscon@[a-f0-9]+$':
 46    $ref: syscon.yaml
 47
 48  '^thermal@[a-f0-9]+$':
 49    $ref: /schemas/thermal/brcm,ns-thermal.yaml
 50
 51additionalProperties: false
 52
 53required:
 54  - reg
 55
 56examples:
 57  - |
 58    #include <dt-bindings/clock/bcm-nsp.h>
 59    cru-bus@1800c100 {
 60        compatible = "brcm,ns-cru", "simple-mfd";
 61        reg = <0x1800c100 0x1d0>;
 62        ranges;
 63        #address-cells = <1>;
 64        #size-cells = <1>;
 65
 66        clock-controller@100 {
 67            #clock-cells = <1>;
 68            compatible = "brcm,nsp-lcpll0";
 69            reg = <0x100 0x14>;
 70            clocks = <&osc>;
 71            clock-output-names = "lcpll0", "pcie_phy", "sdio", "ddr_phy";
 72        };
 73
 74        clock-controller@140 {
 75            #clock-cells = <1>;
 76            compatible = "brcm,nsp-genpll";
 77            reg = <0x140 0x24>;
 78            clocks = <&osc>;
 79            clock-output-names = "genpll", "phy", "ethernetclk", "usbclk",
 80                                 "iprocfast", "sata1", "sata2";
 81        };
 82
 83        phy@164 {
 84            compatible = "brcm,ns-usb2-phy";
 85            reg = <0x164 0x4>;
 86            brcm,syscon-clkset = <&clkset>;
 87            clocks = <&genpll BCM_NSP_GENPLL_USB_PHY_REF_CLK>;
 88            clock-names = "phy-ref-clk";
 89            #phy-cells = <0>;
 90        };
 91
 92        clkset: syscon@180 {
 93            compatible = "brcm,cru-clkset", "syscon";
 94            reg = <0x180 0x4>;
 95        };
 96
 97        pinctrl@1c0 {
 98            compatible = "brcm,bcm4708-pinmux";
 99            reg = <0x1c0 0x24>;
100            reg-names = "cru_gpio_control";
101        };
102
103        thermal@2c0 {
104            compatible = "brcm,ns-thermal";
105            reg = <0x2c0 0x10>;
106            #thermal-sensor-cells = <0>;
107        };
108    };