diff options
Diffstat (limited to 'Documentation')
| -rw-r--r-- | Documentation/devicetree/bindings/bus/sun50i-de2-bus.txt | 37 | ||||
| -rw-r--r-- | Documentation/devicetree/bindings/sram/sunxi-sram.txt | 31 |
2 files changed, 64 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/bus/sun50i-de2-bus.txt b/Documentation/devicetree/bindings/bus/sun50i-de2-bus.txt new file mode 100644 index 000000000000..87dfb33fb3be --- /dev/null +++ b/Documentation/devicetree/bindings/bus/sun50i-de2-bus.txt @@ -0,0 +1,37 @@ +Device tree bindings for Allwinner A64 DE2 bus + +The Allwinner A64 DE2 is on a special bus, which needs a SRAM region (SRAM C) +to be claimed for enabling the access. + +Required properties: + + - compatible: Should contain "allwinner,sun50i-a64-de2" + - reg: A resource specifier for the register space + - #address-cells: Must be set to 1 + - #size-cells: Must be set to 1 + - ranges: Must be set up to map the address space inside the + DE2, for the sub-blocks of DE2. + - allwinner,sram: the SRAM that needs to be claimed + +Example: + + de2@1000000 { + compatible = "allwinner,sun50i-a64-de2"; + reg = <0x1000000 0x400000>; + allwinner,sram = <&de2_sram 1>; + #address-cells = <1>; + #size-cells = <1>; + ranges = <0 0x1000000 0x400000>; + + display_clocks: clock@0 { + compatible = "allwinner,sun50i-a64-de2-clk"; + reg = <0x0 0x100000>; + clocks = <&ccu CLK_DE>, + <&ccu CLK_BUS_DE>; + clock-names = "mod", + "bus"; + resets = <&ccu RST_BUS_DE>; + #clock-cells = <1>; + #reset-cells = <1>; + }; + }; diff --git a/Documentation/devicetree/bindings/sram/sunxi-sram.txt b/Documentation/devicetree/bindings/sram/sunxi-sram.txt index d087f04a4d7f..c51ade86578c 100644 --- a/Documentation/devicetree/bindings/sram/sunxi-sram.txt +++ b/Documentation/devicetree/bindings/sram/sunxi-sram.txt @@ -10,8 +10,14 @@ Controller Node Required properties: - compatible : should be: - - "allwinner,sun4i-a10-sram-controller" - - "allwinner,sun50i-a64-sram-controller" + - "allwinner,sun4i-a10-sram-controller" (deprecated) + - "allwinner,sun4i-a10-system-control" + - "allwinner,sun5i-a13-system-control" + - "allwinner,sun7i-a20-system-control", "allwinner,sun4i-a10-system-control" + - "allwinner,sun8i-a23-system-control" + - "allwinner,sun8i-h3-system-control" + - "allwinner,sun50i-a64-sram-controller" (deprecated) + - "allwinner,sun50i-a64-system-control" - reg : sram controller register offset + length SRAM nodes @@ -26,8 +32,25 @@ once again the representation described in the mmio-sram binding. The valid sections compatible for A10 are: - allwinner,sun4i-a10-sram-a3-a4 + - allwinner,sun4i-a10-sram-c1 - allwinner,sun4i-a10-sram-d +The valid sections compatible for A13 are: + - allwinner,sun5i-a13-sram-a3-a4, allwinner,sun4i-a10-sram-a3-a4 + - allwinner,sun5i-a13-sram-c1, allwinner,sun4i-a10-sram-c1 + - allwinner,sun5i-a13-sram-d, allwinner,sun4i-a10-sram-d + +The valid sections compatible for A20 are: + - allwinner,sun7i-a20-sram-a3-a4, allwinner,sun4i-a10-sram-a3-a4 + - allwinner,sun7i-a20-sram-c1, allwinner,sun4i-a10-sram-c1 + - allwinner,sun7i-a20-sram-d, allwinner,sun4i-a10-sram-d + +The valid sections compatible for A23/A33 are: + - allwinner,sun8i-a23-sram-c1, allwinner,sun4i-a10-sram-c1 + +The valid sections compatible for H3 are: + - allwinner,sun8i-h3-sram-c1, allwinner,sun4i-a10-sram-c1 + The valid sections compatible for A64 are: - allwinner,sun50i-a64-sram-c @@ -47,8 +70,8 @@ This valid values for this argument are: Example ------- -sram-controller@1c00000 { - compatible = "allwinner,sun4i-a10-sram-controller"; +system-control@1c00000 { + compatible = "allwinner,sun4i-a10-system-control"; reg = <0x01c00000 0x30>; #address-cells = <1>; #size-cells = <1>; |