1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/soc/bcm/brcm,bcm2835-pm.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: BCM2835 PM (Power domains, watchdog)
8
9 description: |
10 The PM block controls power domains and some reset lines, and includes a
11 watchdog timer.
12
13 maintainers:
14 - Nicolas Saenz Julienne <nsaenz@kernel.org>
15
16 allOf:
17 - $ref: /schemas/watchdog/watchdog.yaml#
18
19 properties:
20 compatible:
21 items:
22 - enum:
23 - brcm,bcm2835-pm
24 - brcm,bcm2711-pm
25 - const: brcm,bcm2835-pm-wdt
26
27 reg:
28 minItems: 2
29 maxItems: 3
30
31 reg-names:
32 minItems: 2
33 items:
34 - const: pm
35 - const: asb
36 - const: rpivid_asb
37
38 "#power-domain-cells":
39 const: 1
40
41 "#reset-cells":
42 const: 1
43
44 clocks:
45 minItems: 4
46 maxItems: 4
47
48 clock-names:
49 items:
50 - const: v3d
51 - const: peri_image
52 - const: h264
53 - const: isp
54
55 system-power-controller:
56 type: boolean
57
58 timeout-sec: true
59
60 required:
61 - compatible
62 - reg
63 - "#power-domain-cells"
64 - "#reset-cells"
65 - clocks
66
67 additionalProperties: false
68
69 examples:
70 - |
71 #include <dt-bindings/clock/bcm2835.h>
72
73 watchdog@7e100000 {
74 compatible = "brcm,bcm2835-pm", "brcm,bcm2835-pm-wdt";
75 #power-domain-cells = <1>;
76 #reset-cells = <1>;
77 reg = <0x7e100000 0x114>,
78 <0x7e00a000 0x24>;
79 reg-names = "pm", "asb";
80 clocks = <&clocks BCM2835_CLOCK_V3D>,
81 <&clocks BCM2835_CLOCK_PERI_IMAGE>,
82 <&clocks BCM2835_CLOCK_H264>,
83 <&clocks BCM2835_CLOCK_ISP>;
84 clock-names = "v3d", "peri_image", "h264", "isp";
85 system-power-controller;
86 };
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