Documentation/devicetree/bindings/hwlock/ti,omap-hwspinlock.yaml

   1 # SPDX-License-Identifier: (GPL-2.0-only or BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/hwlock/ti,omap-hwspinlock.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: TI HwSpinlock for OMAP and K3 based SoCs
   8
   9 maintainers:
  10   - Suman Anna <s-anna@ti.com>
  11
  12 properties:
  13   compatible:
  14     enum:
  15       - ti,omap4-hwspinlock  # for OMAP44xx, OMAP54xx, AM33xx, AM43xx, DRA7xx SoCs
  16       - ti,am654-hwspinlock  # for K3 AM65x, J721E and J7200 SoCs
  17
  18   reg:
  19     maxItems: 1
  20
  21   "#hwlock-cells":
  22     const: 1
  23     description: |
  24       The OMAP hwspinlock users will use a 0-indexed relative hwlock number as
  25       the argument specifier value for requesting a specific hwspinlock within
  26       a hwspinlock bank.
  27
  28       Please look at the generic hwlock binding for usage information for
  29       consumers, "Documentation/devicetree/bindings/hwlock/hwlock.txt"
  30
  31 required:
  32   - compatible
  33   - reg
  34   - "#hwlock-cells"
  35
  36 additionalProperties: false
  37
  38 examples:
  39
  40   - |
  41     /* OMAP4 SoCs */
  42     hwspinlock: spinlock@4a0f6000 {
  43         compatible = "ti,omap4-hwspinlock";
  44         reg = <0x4a0f6000 0x1000>;
  45         #hwlock-cells = <1>;
  46     };
  47
  48   - |
  49     / {
  50         /* K3 AM65x SoCs */
  51         model = "Texas Instruments K3 AM654 SoC";
  52         compatible = "ti,am654-evm", "ti,am654";
  53         #address-cells = <2>;
  54         #size-cells = <2>;
  55
  56         bus@100000 {
  57             compatible = "simple-bus";
  58             #address-cells = <2>;
  59             #size-cells = <2>;
  60             ranges = <0x00 0x00100000 0x00 0x00100000 0x00 0x00020000>, /* ctrl mmr */
  61                      <0x00 0x30800000 0x00 0x30800000 0x00 0x0bc00000>; /* Main NavSS */
  62
  63             bus@30800000 {
  64                 compatible = "simple-mfd";
  65                 #address-cells = <2>;
  66                 #size-cells = <2>;
  67                 ranges = <0x00 0x30800000 0x00 0x30800000 0x00 0x0bc00000>;
  68
  69                 spinlock@30e00000 {
  70                     compatible = "ti,am654-hwspinlock";
  71                     reg = <0x00 0x30e00000 0x00 0x1000>;
  72                     #hwlock-cells = <1>;
  73                 };
  74             };
  75         };
  76     };