Documentation/devicetree/bindings/sram/allwinner,sun4i-a10-system-control.yaml

   1 # SPDX-License-Identifier: GPL-2.0+
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/sram/allwinner,sun4i-a10-system-control.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Allwinner A10 System Control Device Tree Bindings
   8
   9 maintainers:
  10   - Chen-Yu Tsai <wens@csie.org>
  11   - Maxime Ripard <mripard@kernel.org>
  12
  13 description:
  14   The SRAM controller found on most Allwinner devices is represented
  15   by a regular node for the SRAM controller itself, with sub-nodes
  16   representing the SRAM handled by the SRAM controller.
  17
  18 properties:
  19   "#address-cells":
  20     const: 1
  21
  22   "#size-cells":
  23     const: 1
  24
  25   compatible:
  26     oneOf:
  27       - const: allwinner,sun4i-a10-sram-controller
  28         deprecated: true
  29       - const: allwinner,sun4i-a10-system-control
  30       - const: allwinner,sun5i-a13-system-control
  31       - items:
  32         - const: allwinner,sun7i-a20-system-control
  33         - const: allwinner,sun4i-a10-system-control
  34       - const: allwinner,sun8i-a23-system-control
  35       - const: allwinner,sun8i-h3-system-control
  36       - const: allwinner,sun50i-a64-sram-controller
  37         deprecated: true
  38       - const: allwinner,sun50i-a64-system-control
  39       - const: allwinner,sun50i-h5-system-control
  40       - items:
  41         - const: allwinner,sun50i-h6-system-control
  42         - const: allwinner,sun50i-a64-system-control
  43       - items:
  44         - const: allwinner,suniv-f1c100s-system-control
  45         - const: allwinner,sun4i-a10-system-control
  46
  47   reg:
  48     maxItems: 1
  49
  50   ranges: true
  51
  52 patternProperties:
  53   "^sram@[a-z0-9]+":
  54     type: object
  55
  56     properties:
  57       compatible:
  58         const: mmio-sram
  59
  60     patternProperties:
  61       "^sram-section?@[a-f0-9]+$":
  62         type: object
  63
  64         properties:
  65           compatible:
  66             oneOf:
  67               - const: allwinner,sun4i-a10-sram-a3-a4
  68               - const: allwinner,sun4i-a10-sram-c1
  69               - const: allwinner,sun4i-a10-sram-d
  70               - const: allwinner,sun50i-a64-sram-c
  71               - items:
  72                 - const: allwinner,sun5i-a13-sram-a3-a4
  73                 - const: allwinner,sun4i-a10-sram-a3-a4
  74               - items:
  75                 - const: allwinner,sun7i-a20-sram-a3-a4
  76                 - const: allwinner,sun4i-a10-sram-a3-a4
  77               - items:
  78                 - const: allwinner,sun5i-a13-sram-c1
  79                 - const: allwinner,sun4i-a10-sram-c1
  80               - items:
  81                 - const: allwinner,sun7i-a20-sram-c1
  82                 - const: allwinner,sun4i-a10-sram-c1
  83               - items:
  84                 - const: allwinner,sun8i-a23-sram-c1
  85                 - const: allwinner,sun4i-a10-sram-c1
  86               - items:
  87                 - const: allwinner,sun8i-h3-sram-c1
  88                 - const: allwinner,sun4i-a10-sram-c1
  89               - items:
  90                 - const: allwinner,sun50i-a64-sram-c1
  91                 - const: allwinner,sun4i-a10-sram-c1
  92               - items:
  93                 - const: allwinner,sun50i-h5-sram-c1
  94                 - const: allwinner,sun4i-a10-sram-c1
  95               - items:
  96                 - const: allwinner,sun50i-h6-sram-c1
  97                 - const: allwinner,sun4i-a10-sram-c1
  98               - items:
  99                 - const: allwinner,sun5i-a13-sram-d
 100                 - const: allwinner,sun4i-a10-sram-d
 101               - items:
 102                 - const: allwinner,sun7i-a20-sram-d
 103                 - const: allwinner,sun4i-a10-sram-d
 104               - items:
 105                 - const: allwinner,suniv-f1c100s-sram-d
 106                 - const: allwinner,sun4i-a10-sram-d
 107               - items:
 108                 - const: allwinner,sun50i-h6-sram-c
 109                 - const: allwinner,sun50i-a64-sram-c
 110
 111 required:
 112   - "#address-cells"
 113   - "#size-cells"
 114   - compatible
 115   - reg
 116
 117 additionalProperties: false
 118
 119 examples:
 120   - |
 121     system-control@1c00000 {
 122       compatible = "allwinner,sun4i-a10-system-control";
 123       reg = <0x01c00000 0x30>;
 124       #address-cells = <1>;
 125       #size-cells = <1>;
 126       ranges;
 127
 128       sram_a: sram@00000000 {
 129         compatible = "mmio-sram";
 130         reg = <0x00000000 0xc000>;
 131         #address-cells = <1>;
 132         #size-cells = <1>;
 133         ranges = <0 0x00000000 0xc000>;
 134
 135         emac_sram: sram-section@8000 {
 136           compatible = "allwinner,sun4i-a10-sram-a3-a4";
 137           reg = <0x8000 0x4000>;
 138         };
 139       };
 140     };