target/linux/realtek/files-5.10/Documentation/devicetree/bindings/realtek,otto-timer.yaml

   1 # SPDX-License-Identifier: GPL-2.0
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/timer/realtek,rtl8300-timer.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Realtek Timer Device Tree Bindings
   8
   9 maintainers:
  10   - Markus Stockhausen <markus.stockhausen@gmx.de>
  11
  12 description: |
  13   The Realtek SOCs of the RTL83XX and RTL93XX series have at least 5 known
  14   timers with corresponding interrupt lines . Their speed is derived from the
  15   Lexra Bus (LXB) by dividers. Each timer has a block of 4 control registers in
  16   the address range 0xb800xxxx with following start offsets.
  17
  18   RTL83XX: 0x3100, 0x3110, 0x3120, 0x3130, 0x3140
  19   RTL93XX: 0x3200, 0x3210, 0x3220, 0x3230, 0x3240
  20
  21 properties:
  22   compatible:
  23     items:
  24       - enum:
  25         - realtek,rtl8380-timer
  26         - realtek,rtl8390-timer
  27         - realtek,rtl9300-timer
  28       - const: realtek,otto-timer
  29
  30   reg:
  31     minItems: 5
  32     maxItems: 5
  33     description:
  34       List of timer register addresses.
  35
  36   interrupts:
  37     minItems: 5
  38     maxItems: 5
  39     description:
  40       List of timer interrupts.
  41
  42   clocks:
  43     maxItems: 1
  44
  45 required:
  46   - compatible
  47   - reg
  48   - interrupts
  49   - clocks
  50
  51 additionalProperties: false
  52
  53 examples:
  54   - |
  55     timer0: timer@3100 {
  56       compatible = "realtek,rtl8380-timer", "realtek,otto-timer";
  57       reg = <0x3100 0x10>, <0x3110 0x10>, <0x3120 0x10>,
  58             <0x3130 0x10>, <0x3140 0x10>;
  59
  60       interrupt-parent = <&intc>;
  61       interrupts = <29 4>, <28 4>, <17 4>, <16 4>, <15 4>;
  62       clocks = <&ccu CLK_LXB>;
  63     };
  64   - |
  65     timer0: timer@3100 {
  66       compatible = "realtek,rtl8390-timer", "realtek,otto-timer";
  67       reg = <0x3100 0x10>, <0x3110 0x10>, <0x3120 0x10>,
  68             <0x3130 0x10>, <0x3140 0x10>;
  69
  70       interrupt-parent = <&intc>;
  71       interrupts = <29 4>, <28 4>, <17 4>, <16 4>, <15 4>;
  72       clocks = <&ccu CLK_LXB>;
  73     };
  74   - |
  75     timer0: timer@3200 {
  76       compatible = "realtek,rtl9300-timer", "realtek,otto-timer";
  77       reg = <0x3200 0x10>, <0x3210 0x10>, <0x3220 0x10>,
  78             <0x3230 0x10>, <0x3240 0x10>;
  79
  80       interrupt-parent = <&intc>;
  81       interrupts = <7 4>, <8 4>, <9 4>, <10 4>, <11 4>;
  82       clocks = <&ccu CLK_LXB>;
  83     };
  84
  85 ...