1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/clock/atmel,at91rm9200-pmc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6
7 title: Atmel Power Management Controller (PMC)
8
9 maintainers:
10 - Claudiu Beznea <claudiu.beznea@microchip.com>
11
12 description:
13 The power management controller optimizes power consumption by controlling all
14 system and user peripheral clocks. The PMC enables/disables the clock inputs
15 to many of the peripherals and to the processor.
16
17 properties:
18 compatible:
19 oneOf:
20 - items:
21 - const: atmel,at91sam9g20-pmc
22 - const: atmel,at91sam9260-pmc
23 - const: syscon
24 - items:
25 - enum:
26 - atmel,at91sam9g15-pmc
27 - atmel,at91sam9g25-pmc
28 - atmel,at91sam9g35-pmc
29 - atmel,at91sam9x25-pmc
30 - atmel,at91sam9x35-pmc
31 - const: atmel,at91sam9x5-pmc
32 - const: syscon
33 - items:
34 - enum:
35 - atmel,at91rm9200-pmc
36 - atmel,at91sam9260-pmc
37 - atmel,at91sam9g45-pmc
38 - atmel,at91sam9n12-pmc
39 - atmel,at91sam9rl-pmc
40 - atmel,at91sam9x5-pmc
41 - atmel,sama5d2-pmc
42 - atmel,sama5d3-pmc
43 - atmel,sama5d4-pmc
44 - microchip,sam9x60-pmc
45 - microchip,sam9x7-pmc
46 - microchip,sama7g5-pmc
47 - const: syscon
48
49 reg:
50 maxItems: 1
51
52 interrupts:
53 maxItems: 1
54
55 "#clock-cells":
56 description: |
57 - 1st cell is the clock type, one of PMC_TYPE_CORE, PMC_TYPE_SYSTEM,
58 PMC_TYPE_PERIPHERAL, PMC_TYPE_GCK, PMC_TYPE_PROGRAMMABLE (as defined
59 in <dt-bindings/clock/at91.h>)
60 - 2nd cell is the clock identifier as defined in <dt-bindings/clock/at91.h
61 (for core clocks) or as defined in datasheet (for system, peripheral,
62 gck and programmable clocks).
63 const: 2
64
65 clocks:
66 minItems: 2
67 maxItems: 3
68
69 clock-names:
70 minItems: 2
71 maxItems: 3
72
73 atmel,osc-bypass:
74 description: set when a clock signal is directly provided on XIN
75 type: boolean
76
77 required:
78 - compatible
79 - reg
80 - interrupts
81 - "#clock-cells"
82 - clocks
83 - clock-names
84
85 allOf:
86 - if:
87 properties:
88 compatible:
89 contains:
90 enum:
91 - microchip,sam9x60-pmc
92 - microchip,sam9x7-pmc
93 - microchip,sama7g5-pmc
94 then:
95 properties:
96 clocks:
97 minItems: 3
98 maxItems: 3
99 clock-names:
100 items:
101 - const: td_slck
102 - const: md_slck
103 - const: main_xtal
104
105 - if:
106 properties:
107 compatible:
108 contains:
109 enum:
110 - atmel,at91rm9200-pmc
111 - atmel,at91sam9260-pmc
112 - atmel,at91sam9g20-pmc
113 then:
114 properties:
115 clocks:
116 minItems: 2
117 maxItems: 2
118 clock-names:
119 items:
120 - const: slow_xtal
121 - const: main_xtal
122
123 - if:
124 properties:
125 compatible:
126 contains:
127 enum:
128 - atmel,sama5d2-pmc
129 - atmel,sama5d3-pmc
130 - atmel,sama5d4-pmc
131 then:
132 properties:
133 clocks:
134 minItems: 2
135 maxItems: 2
136 clock-names:
137 items:
138 - const: slow_clk
139 - const: main_xtal
140
141 additionalProperties: false
142
143 examples:
144 - |
145 #include <dt-bindings/interrupt-controller/irq.h>
146
147 pmc: clock-controller@f0018000 {
148 compatible = "atmel,sama5d4-pmc", "syscon";
149 reg = <0xf0018000 0x120>;
150 interrupts = <1 IRQ_TYPE_LEVEL_HIGH 7>;
151 #clock-cells = <2>;
152 clocks = <&clk32k>, <&main_xtal>;
153 clock-names = "slow_clk", "main_xtal";
154 };
155
156 ...
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