[PATCH linux dev-4.13 4/5] ARM: dts: ast2500-evb: Enable the GFX IP

[Andrew Jeffery]

On Thu, 19 Apr 2018, at 13:50, Joel Stanley wrote:
> The GFX controller is the internal graphics device used by the SoC
> (opposed to the one connected via the PCIe device and used by the host).
> 
> This configures it with a framebuffer region and adds it to the command
> line so kernel boot messages appear on the display.
> 
> Signed-off-by: Joel Stanley <joel at jms.id.au>

Reviewed-by: Andrew Jeffery <andrew at aj.id.au>

> ---
>  arch/arm/boot/dts/aspeed-ast2500-evb.dts | 21 ++++++++++++++++++++-
>  1 file changed, 20 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/aspeed-ast2500-evb.dts b/arch/arm/boot/
> dts/aspeed-ast2500-evb.dts
> index 45efac8f8806..c0a7f51e7eb6 100644
> --- a/arch/arm/boot/dts/aspeed-ast2500-evb.dts
> +++ b/arch/arm/boot/dts/aspeed-ast2500-evb.dts
> @@ -13,12 +13,26 @@
>  
>  	chosen {
>  		stdout-path = &uart5;
> -		bootargs = "console=ttyS4,115200 earlyprintk";
> +		bootargs = "console=tty0 console=ttyS4,115200 earlyprintk";
>  	};
>  
>  	memory at 80000000 {
> +		device_type = "memory";
>  		reg = <0x80000000 0x20000000>;
>  	};
> +
> +	reserved-memory {
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +		ranges;
> +
> +		gfx_memory: framebuffer {
> +			size = <0x01000000>;
> +			alignment = <0x01000000>;
> +			compatible = "shared-dma-pool";
> +			reusable;
> +		};
> +	};
>  };
>  
>  &fmc {
> @@ -80,3 +94,8 @@
>  		reg = <0x4d>;
>  	};
>  };
> +
> +&gfx {
> +     status = "okay";
> +     memory-region = <&gfx_memory>;
> +};
> -- 
> 2.17.0
>