1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-C 1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/soc/microch 4 $id: http://devicetree.org/schemas/soc/microchip/atmel,at91rm9200-tcb.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Atmel Timer Counter Block 7 title: Atmel Timer Counter Block
8 8
9 maintainers: 9 maintainers:
10 - Alexandre Belloni <alexandre.belloni@bootli 10 - Alexandre Belloni <alexandre.belloni@bootlin.com>
11 11
12 description: | 12 description: |
13 The Atmel (now Microchip) SoCs have timers n 13 The Atmel (now Microchip) SoCs have timers named Timer Counter Block. Each
14 timer has three channels with two counters e 14 timer has three channels with two counters each.
15 15
16 properties: 16 properties:
17 compatible: 17 compatible:
18 items: 18 items:
19 - enum: 19 - enum:
20 - atmel,at91rm9200-tcb 20 - atmel,at91rm9200-tcb
21 - atmel,at91sam9x5-tcb 21 - atmel,at91sam9x5-tcb
22 - atmel,sama5d2-tcb 22 - atmel,sama5d2-tcb
23 - const: simple-mfd 23 - const: simple-mfd
24 - const: syscon 24 - const: syscon
25 25
26 reg: 26 reg:
27 maxItems: 1 27 maxItems: 1
28 28
29 interrupts: 29 interrupts:
30 description: 30 description:
31 List of interrupts. One interrupt per TC 31 List of interrupts. One interrupt per TCB channel if available or one
32 interrupt for the TC block 32 interrupt for the TC block
33 minItems: 1 33 minItems: 1
34 maxItems: 3 34 maxItems: 3
35 35
36 clock-names: 36 clock-names:
37 description: 37 description:
38 List of clock names. Always includes t0_ 38 List of clock names. Always includes t0_clk and slow clk. Also includes
39 t1_clk and t2_clk if a clock per channel 39 t1_clk and t2_clk if a clock per channel is available.
40 minItems: 2 40 minItems: 2
41 maxItems: 4 41 maxItems: 4
42 42
43 clocks: 43 clocks:
44 minItems: 2 44 minItems: 2
45 maxItems: 4 45 maxItems: 4
46 46
47 '#address-cells': 47 '#address-cells':
48 const: 1 48 const: 1
49 49
50 '#size-cells': 50 '#size-cells':
51 const: 0 51 const: 0
52 52
53 patternProperties: 53 patternProperties:
54 "^timer@[0-2]$": 54 "^timer@[0-2]$":
55 description: The timer block channels that 55 description: The timer block channels that are used as timers or counters.
56 type: object 56 type: object
57 additionalProperties: false 57 additionalProperties: false
58 properties: 58 properties:
59 compatible: 59 compatible:
60 items: 60 items:
61 - enum: 61 - enum:
62 - atmel,tcb-timer 62 - atmel,tcb-timer
63 - atmel,tcb-pwm 63 - atmel,tcb-pwm
64 - microchip,tcb-capture 64 - microchip,tcb-capture
65 reg: 65 reg:
66 description: 66 description:
67 List of channels to use for this par 67 List of channels to use for this particular timer. In Microchip TCB capture
68 mode channels are registered as a co 68 mode channels are registered as a counter devices, for the qdec mode TCB0's
69 channel <0> and <1> are required. 69 channel <0> and <1> are required.
70 70
71 minItems: 1 71 minItems: 1
72 maxItems: 3 72 maxItems: 3
73 required: 73 required:
74 - compatible 74 - compatible
75 - reg 75 - reg
76 76
77 "^pwm@[0-2]$": 77 "^pwm@[0-2]$":
78 description: The timer block channels that 78 description: The timer block channels that are used as PWMs.
79 $ref: /schemas/pwm/pwm.yaml# 79 $ref: /schemas/pwm/pwm.yaml#
80 type: object 80 type: object
81 properties: 81 properties:
82 compatible: 82 compatible:
83 const: atmel,tcb-pwm 83 const: atmel,tcb-pwm
84 reg: 84 reg:
85 description: 85 description:
86 TCB channel to use for this PWM. 86 TCB channel to use for this PWM.
87 enum: [ 0, 1, 2 ] 87 enum: [ 0, 1, 2 ]
88 88
89 "#pwm-cells": 89 "#pwm-cells":
90 description: 90 description:
91 The only third cell flag supported b 91 The only third cell flag supported by this binding is
92 PWM_POLARITY_INVERTED. 92 PWM_POLARITY_INVERTED.
93 const: 3 93 const: 3
94 94
95 required: 95 required:
96 - compatible 96 - compatible
97 - reg 97 - reg
98 - "#pwm-cells" 98 - "#pwm-cells"
99 99
100 additionalProperties: false 100 additionalProperties: false
101 101
102 102
103 allOf: 103 allOf:
104 - if: 104 - if:
105 properties: 105 properties:
106 compatible: 106 compatible:
107 contains: 107 contains:
108 const: atmel,sama5d2-tcb 108 const: atmel,sama5d2-tcb
109 then: 109 then:
110 properties: 110 properties:
111 clocks: 111 clocks:
112 minItems: 3 112 minItems: 3
113 maxItems: 3 113 maxItems: 3
114 clock-names: 114 clock-names:
115 items: 115 items:
116 - const: t0_clk 116 - const: t0_clk
117 - const: gclk 117 - const: gclk
118 - const: slow_clk 118 - const: slow_clk
119 else: 119 else:
120 properties: 120 properties:
121 clocks: 121 clocks:
122 minItems: 2 122 minItems: 2
123 maxItems: 4 123 maxItems: 4
124 clock-names: 124 clock-names:
125 oneOf: 125 oneOf:
126 - items: 126 - items:
127 - const: t0_clk 127 - const: t0_clk
128 - const: slow_clk 128 - const: slow_clk
129 - items: 129 - items:
130 - const: t0_clk 130 - const: t0_clk
131 - const: t1_clk 131 - const: t1_clk
132 - const: t2_clk 132 - const: t2_clk
133 - const: slow_clk 133 - const: slow_clk
134 134
135 required: 135 required:
136 - compatible 136 - compatible
137 - reg 137 - reg
138 - interrupts 138 - interrupts
139 - clocks 139 - clocks
140 - clock-names 140 - clock-names
141 - '#address-cells' 141 - '#address-cells'
142 - '#size-cells' 142 - '#size-cells'
143 143
144 additionalProperties: false 144 additionalProperties: false
145 145
146 examples: 146 examples:
147 - | 147 - |
148 /* One interrupt per TC block: */ 148 /* One interrupt per TC block: */
149 tcb0: timer@fff7c000 { 149 tcb0: timer@fff7c000 {
150 compatible = "atmel,at91rm9200 150 compatible = "atmel,at91rm9200-tcb", "simple-mfd", "syscon";
151 #address-cells = <1>; 151 #address-cells = <1>;
152 #size-cells = <0>; 152 #size-cells = <0>;
153 reg = <0xfff7c000 0x100>; 153 reg = <0xfff7c000 0x100>;
154 interrupts = <18 4>; 154 interrupts = <18 4>;
155 clocks = <&tcb0_clk>, <&clk32k 155 clocks = <&tcb0_clk>, <&clk32k>;
156 clock-names = "t0_clk", "slow_ 156 clock-names = "t0_clk", "slow_clk";
157 157
158 timer@0 { 158 timer@0 {
159 compatible = "atmel,tc 159 compatible = "atmel,tcb-timer";
160 reg = <0>, <1>; 160 reg = <0>, <1>;
161 }; 161 };
162 162
163 timer@2 { 163 timer@2 {
164 compatible = "atmel,tc 164 compatible = "atmel,tcb-timer";
165 reg = <2>; 165 reg = <2>;
166 }; 166 };
167 }; 167 };
168 168
169 /* One interrupt per TC channel in a TC bl 169 /* One interrupt per TC channel in a TC block: */
170 tcb1: timer@fffdc000 { 170 tcb1: timer@fffdc000 {
171 compatible = "atmel,at91rm9200 171 compatible = "atmel,at91rm9200-tcb", "simple-mfd", "syscon";
172 #address-cells = <1>; 172 #address-cells = <1>;
173 #size-cells = <0>; 173 #size-cells = <0>;
174 reg = <0xfffdc000 0x100>; 174 reg = <0xfffdc000 0x100>;
175 interrupts = <26 4>, <27 4>, < 175 interrupts = <26 4>, <27 4>, <28 4>;
176 clocks = <&tcb1_clk>, <&clk32k 176 clocks = <&tcb1_clk>, <&clk32k>;
177 clock-names = "t0_clk", "slow_ 177 clock-names = "t0_clk", "slow_clk";
178 178
179 timer@0 { 179 timer@0 {
180 compatible = "atmel,tc 180 compatible = "atmel,tcb-timer";
181 reg = <0>; 181 reg = <0>;
182 }; 182 };
183 183
184 timer@1 { 184 timer@1 {
185 compatible = "atmel,tc 185 compatible = "atmel,tcb-timer";
186 reg = <1>; 186 reg = <1>;
187 }; 187 };
188 188
189 pwm@2 { 189 pwm@2 {
190 compatible = "atmel,tc 190 compatible = "atmel,tcb-pwm";
191 reg = <2>; 191 reg = <2>;
192 #pwm-cells = <3>; 192 #pwm-cells = <3>;
193 }; 193 };
194 }; 194 };
195 /* TCB0 Capture with QDEC: */ 195 /* TCB0 Capture with QDEC: */
196 timer@f800c000 { 196 timer@f800c000 {
197 compatible = "atmel,at91rm9200 197 compatible = "atmel,at91rm9200-tcb", "simple-mfd", "syscon";
198 #address-cells = <1>; 198 #address-cells = <1>;
199 #size-cells = <0>; 199 #size-cells = <0>;
200 reg = <0xfff7c000 0x100>; 200 reg = <0xfff7c000 0x100>;
201 interrupts = <18 4>; 201 interrupts = <18 4>;
202 clocks = <&tcb0_clk>, <&clk32k 202 clocks = <&tcb0_clk>, <&clk32k>;
203 clock-names = "t0_clk", "slow_ 203 clock-names = "t0_clk", "slow_clk";
204 204
205 timer@0 { 205 timer@0 {
206 compatible = "microchi 206 compatible = "microchip,tcb-capture";
207 reg = <0>, <1>; 207 reg = <0>, <1>;
208 }; 208 };
209 209
210 timer@2 { 210 timer@2 {
211 compatible = "atmel,tc 211 compatible = "atmel,tcb-timer";
212 reg = <2>; 212 reg = <2>;
213 }; 213 };
214 }; 214 };
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