| Amlogic MesonX device tree bindings |
| ------------------------------------------- |
| |
| Work in progress statement: |
| |
| Device tree files and bindings applying to Amlogic SoCs and boards are |
| considered "unstable". Any Amlogic device tree binding may change at |
| any time. Be sure to use a device tree binary and a kernel image |
| generated from the same source tree. |
| |
| Please refer to Documentation/devicetree/bindings/ABI.txt for a definition of a |
| stable binding/ABI. |
| |
| --------------------------------------------------------------- |
| |
| Boards with the Amlogic Meson6 SoC shall have the following properties: |
| Required root node property: |
| compatible: "amlogic,meson6" |
| |
| Boards with the Amlogic Meson8 SoC shall have the following properties: |
| Required root node property: |
| compatible: "amlogic,meson8"; |
| |
| Boards with the Amlogic Meson8b SoC shall have the following properties: |
| Required root node property: |
| compatible: "amlogic,meson8b"; |
| |
| Boards with the Amlogic Meson GXBaby SoC shall have the following properties: |
| Required root node property: |
| compatible: "amlogic,meson-gxbb"; |
| |
| Boards with the Amlogic Meson GXL S905X SoC shall have the following properties: |
| Required root node property: |
| compatible: "amlogic,s905x", "amlogic,meson-gxl"; |
| |
| Boards with the Amlogic Meson GXL S905D SoC shall have the following properties: |
| Required root node property: |
| compatible: "amlogic,s905d", "amlogic,meson-gxl"; |
| |
| Boards with the Amlogic Meson GXM S912 SoC shall have the following properties: |
| Required root node property: |
| compatible: "amlogic,s912", "amlogic,meson-gxm"; |
| |
| Board compatible values (alphabetically, grouped by SoC): |
| |
| - "geniatech,atv1200" (Meson6) |
| |
| - "minix,neo-x8" (Meson8) |
| |
| - "hardkernel,odroid-c1" (Meson8b) |
| - "tronfy,mxq" (Meson8b) |
| |
| - "amlogic,p200" (Meson gxbb) |
| - "amlogic,p201" (Meson gxbb) |
| - "friendlyarm,nanopi-k2" (Meson gxbb) |
| - "hardkernel,odroid-c2" (Meson gxbb) |
| - "nexbox,a95x" (Meson gxbb or Meson gxl s905x) |
| - "tronsmart,vega-s95-pro", "tronsmart,vega-s95" (Meson gxbb) |
| - "tronsmart,vega-s95-meta", "tronsmart,vega-s95" (Meson gxbb) |
| - "tronsmart,vega-s95-telos", "tronsmart,vega-s95" (Meson gxbb) |
| - "wetek,hub" (Meson gxbb) |
| - "wetek,play2" (Meson gxbb) |
| |
| - "amlogic,p212" (Meson gxl s905x) |
| - "hwacom,amazetv" (Meson gxl s905x) |
| - "khadas,vim" (Meson gxl s905x) |
| - "libretech,cc" (Meson gxl s905x) |
| |
| - "amlogic,p230" (Meson gxl s905d) |
| - "amlogic,p231" (Meson gxl s905d) |
| |
| - "amlogic,q200" (Meson gxm s912) |
| - "amlogic,q201" (Meson gxm s912) |
| - "kingnovel,r-box-pro" (Meson gxm S912) |
| - "nexbox,a1" (Meson gxm s912) |
| |
| Amlogic Meson Firmware registers Interface |
| ------------------------------------------ |
| |
| The Meson SoCs have a register bank with status and data shared with the |
| secure firmware. |
| |
| Required properties: |
| - compatible: For Meson GX SoCs, must be "amlogic,meson-gx-ao-secure", "syscon" |
| |
| Properties should indentify components of this register interface : |
| |
| Meson GX SoC Information |
| ------------------------ |
| A firmware register encodes the SoC type, package and revision information on |
| the Meson GX SoCs. |
| If present, the following property should be added : |
| |
| Optional properties: |
| - amlogic,has-chip-id: If present, the interface gives the current SoC version. |
| |
| Example |
| ------- |
| |
| ao-secure@140 { |
| compatible = "amlogic,meson-gx-ao-secure", "syscon"; |
| reg = <0x0 0x140 0x0 0x140>; |
| amlogic,has-chip-id; |
| }; |