Documentation/devicetree/bindings/arm/amlogic.txt

   1 Amlogic MesonX device tree bindings
   2 -------------------------------------------
   3
   4 Work in progress statement:
   5
   6 Device tree files and bindings applying to Amlogic SoCs and boards are
   7 considered "unstable". Any Amlogic device tree binding may change at
   8 any time. Be sure to use a device tree binary and a kernel image
   9 generated from the same source tree.
  10
  11 Please refer to Documentation/devicetree/bindings/ABI.txt for a definition of a
  12 stable binding/ABI.
  13
  14 ---------------------------------------------------------------
  15
  16 Boards with the Amlogic Meson6 SoC shall have the following properties:
  17   Required root node property:
  18     compatible: "amlogic,meson6"
  19
  20 Boards with the Amlogic Meson8 SoC shall have the following properties:
  21   Required root node property:
  22     compatible: "amlogic,meson8";
  23
  24 Boards with the Amlogic Meson8b SoC shall have the following properties:
  25   Required root node property:
  26     compatible: "amlogic,meson8b";
  27
  28 Boards with the Amlogic Meson GXBaby SoC shall have the following properties:
  29   Required root node property:
  30     compatible: "amlogic,meson-gxbb";
  31
  32 Boards with the Amlogic Meson GXL S905X SoC shall have the following properties:
  33   Required root node property:
  34     compatible: "amlogic,s905x", "amlogic,meson-gxl";
  35
  36 Boards with the Amlogic Meson GXL S905D SoC shall have the following properties:
  37   Required root node property:
  38     compatible: "amlogic,s905d", "amlogic,meson-gxl";
  39
  40 Boards with the Amlogic Meson GXM S912 SoC shall have the following properties:
  41   Required root node property:
  42     compatible: "amlogic,s912", "amlogic,meson-gxm";
  43
  44 Board compatible values (alphabetically, grouped by SoC):
  45
  46   - "geniatech,atv1200" (Meson6)
  47
  48   - "minix,neo-x8" (Meson8)
  49
  50   - "hardkernel,odroid-c1" (Meson8b)
  51   - "tronfy,mxq" (Meson8b)
  52
  53   - "amlogic,p200" (Meson gxbb)
  54   - "amlogic,p201" (Meson gxbb)
  55   - "friendlyarm,nanopi-k2" (Meson gxbb)
  56   - "hardkernel,odroid-c2" (Meson gxbb)
  57   - "nexbox,a95x" (Meson gxbb or Meson gxl s905x)
  58   - "tronsmart,vega-s95-pro", "tronsmart,vega-s95" (Meson gxbb)
  59   - "tronsmart,vega-s95-meta", "tronsmart,vega-s95" (Meson gxbb)
  60   - "tronsmart,vega-s95-telos", "tronsmart,vega-s95" (Meson gxbb)
  61   - "wetek,hub" (Meson gxbb)
  62   - "wetek,play2" (Meson gxbb)
  63
  64   - "amlogic,p212" (Meson gxl s905x)
  65   - "hwacom,amazetv" (Meson gxl s905x)
  66   - "khadas,vim" (Meson gxl s905x)
  67   - "libretech,cc" (Meson gxl s905x)
  68
  69   - "amlogic,p230" (Meson gxl s905d)
  70   - "amlogic,p231" (Meson gxl s905d)
  71
  72   - "amlogic,q200" (Meson gxm s912)
  73   - "amlogic,q201" (Meson gxm s912)
  74   - "kingnovel,r-box-pro" (Meson gxm S912)
  75   - "nexbox,a1" (Meson gxm s912)
  76
  77 Amlogic Meson Firmware registers Interface
  78 ------------------------------------------
  79
  80 The Meson SoCs have a register bank with status and data shared with the
  81 secure firmware.
  82
  83 Required properties:
  84  - compatible: For Meson GX SoCs, must be "amlogic,meson-gx-ao-secure", "syscon"
  85
  86 Properties should indentify components of this register interface :
  87
  88 Meson GX SoC Information
  89 ------------------------
  90 A firmware register encodes the SoC type, package and revision information on
  91 the Meson GX SoCs.
  92 If present, the following property should be added :
  93
  94 Optional properties:
  95   - amlogic,has-chip-id: If present, the interface gives the current SoC version.
  96
  97 Example
  98 -------
  99
 100 ao-secure@140 {
 101         compatible = "amlogic,meson-gx-ao-secure", "syscon";
 102         reg = <0x0 0x140 0x0 0x140>;
 103         amlogic,has-chip-id;
 104 };