1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/mips/brcm/soc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Broadcom cable/DSL/settop platforms
8
9 maintainers:
10 - Florian Fainelli <f.fainelli@gmail.com>
11
12 description: |
13 Boards Broadcom cable/DSL/settop SoC shall have the following properties.
14 The experimental -viper variants are for running Linux on the 3384's
15 BMIPS4355 cable modem CPU instead of the BMIPS5000 application processor.
16
17 properties:
18 $nodename:
19 const: '/'
20
21 compatible:
22 enum:
23 - brcm,bcm3368
24 - brcm,bcm3384
25 - brcm,bcm33843
26 - brcm,bcm3384-viper
27 - brcm,bcm33843-viper
28 - brcm,bcm6328
29 - brcm,bcm6358
30 - brcm,bcm6362
31 - brcm,bcm6368
32 - brcm,bcm63168
33 - brcm,bcm63268
34 - brcm,bcm7125
35 - brcm,bcm7346
36 - brcm,bcm7358
37 - brcm,bcm7360
38 - brcm,bcm7362
39 - brcm,bcm7420
40 - brcm,bcm7425
41
42 cpus:
43 type: object
44 additionalProperties: false
45 properties:
46 '#address-cells':
47 const: 1
48
49 '#size-cells':
50 const: 0
51
52 mips-hpt-frequency:
53 description: MIPS counter high precision timer frequency.
54 This is common to all CPUs in the system so it lives
55 under the "cpus" node.
56 $ref: /schemas/types.yaml#/definitions/uint32
57
58 brcm,bmips-cbr-reg:
59 description: Reference address of the CBR.
60 Some SoC suffer from a BUG where CBR(Core Base Register)
61 address might be badly or never initialized by the Bootloader
62 or reading it from co-processor registers, if the system boots
63 from secondary CPU, results in invalid address.
64 The CBR address is always the same on the SoC hence it
65 can be provided in DT to handle these broken case.
66 $ref: /schemas/types.yaml#/definitions/uint32
67
68 patternProperties:
69 "^cpu@[0-9]$":
70 type: object
71 $ref: /schemas/mips/cpus.yaml#
72 unevaluatedProperties: false
73
74 required:
75 - mips-hpt-frequency
76
77 if:
78 properties:
79 compatible:
80 contains:
81 enum:
82 - brcm,bcm6358
83 - brcm,bcm6368
84
85 then:
86 properties:
87 cpus:
88 required:
89 - brcm,bmips-cbr-reg
90
91 additionalProperties: true
92
93 examples:
94 - |
95 / {
96 compatible = "brcm,bcm3368";
97 #address-cells = <1>;
98 #size-cells = <1>;
99 model = "Broadcom 3368";
100
101 cpus {
102 #address-cells = <1>;
103 #size-cells = <0>;
104
105 mips-hpt-frequency = <150000000>;
106
107 cpu@0 {
108 compatible = "brcm,bmips4350";
109 device_type = "cpu";
110 reg = <0>;
111 };
112
113 cpu@1 {
114 compatible = "brcm,bmips4350";
115 device_type = "cpu";
116 reg = <1>;
117 };
118 };
119 };
120 ...
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