xref: /linux/Documentation/devicetree/bindings/mfd/brcm,cru.yaml (revision 28650a5c3a3471f8211b567bc8fe55aebbd4df66) 
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    $ref: ../clock/brcm,iproc-clocks.yaml
38
39  '^phy@[a-f0-9]+$':
40    $ref: ../phy/bcm-ns-usb2-phy.yaml
41
42  '^pinctrl@[a-f0-9]+$':
43    $ref: ../pinctrl/brcm,ns-pinmux.yaml
44
45  '^syscon@[a-f0-9]+$':
46    $ref: syscon.yaml
47
48  '^thermal@[a-f0-9]+$':
49    $ref: ../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    };
109