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Device tree configuration for the GFX display device on the ASPEED SoCs
Required properties:
- compatible
* Must be one of the following:
+ aspeed,ast2500-gfx
+ aspeed,ast2400-gfx
* In addition, the ASPEED pinctrl bindings require the 'syscon' property to
be present
- reg: Physical base address and length of the GFX registers
- interrupts: interrupt number for the GFX device
- clocks: clock number used to generate the pixel clock
- resets: reset line that must be released to use the GFX device
- memory-region:
Phandle to a memory region to allocate from, as defined in
Documentation/devicetree/bindings/reserved-memory/reserved-memory.txt
Example:
gfx: display@1e6e6000 {
compatible = "aspeed,ast2500-gfx", "syscon";
reg = <0x1e6e6000 0x1000>;
reg-io-width = <4>;
clocks = <&syscon ASPEED_CLK_GATE_D1CLK>;
resets = <&syscon ASPEED_RESET_CRT1>;
interrupts = <0x19>;
memory-region = <&gfx_memory>;
};
gfx_memory: framebuffer {
size = <0x01000000>;
alignment = <0x01000000>;
compatible = "shared-dma-pool";
reusable;
};
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