atmel,at91rm9200-tcb.yaml

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

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FreeBSD/Linux Kernel Cross Reference sys/contrib/device-tree/Bindings/soc/microchip/atmel,at91rm9200-tcb.yaml

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sys/contrib/device-tree/Bindings/soc/microchip/atmel,at91rm9200-tcb.yaml