1 Device tree configuration for the GFX display
2
3 Required properties:
4 - compatible
5 * Must be one of the following:
6 + aspeed,ast2500-gfx
7 + aspeed,ast2400-gfx
8 * In addition, the ASPEED pinctrl bindings
9 be present
10
11 - reg: Physical base address and length of t
12
13 - interrupts: interrupt number for the GFX d
14
15 - clocks: clock number used to generate the
16
17 - resets: reset line that must be released t
18
19 - memory-region:
20 Phandle to a memory region to allocate fro
21 Documentation/devicetree/bindings/reserved
22
23
24 Example:
25
26 gfx: display@1e6e6000 {
27 compatible = "aspeed,ast2500-gfx", "sy
28 reg = <0x1e6e6000 0x1000>;
29 reg-io-width = <4>;
30 clocks = <&syscon ASPEED_CLK_GATE_D1CL
31 resets = <&syscon ASPEED_RESET_CRT1>;
32 interrupts = <0x19>;
33 memory-region = <&gfx_memory>;
34 };
35
36 gfx_memory: framebuffer {
37 size = <0x01000000>;
38 alignment = <0x01000000>;
39 compatible = "shared-dma-pool";
40 reusable;
41 };
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