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>;
|
};
|
};
|
