[PATCH linux dev-5.3 2/2] ARM: dts: aspeed: ast2600evb: Use custom flash layout

[Cédric Le Goater]

On 26/09/2019 08:31, Joel Stanley wrote:
> The AST2600 u-boot and kernel images have outgrown the OpenBMC layout.
> While BMC machines use 128MB SPI NOR chips, we only have 64MB on the EVB
> so use a layout that has a smaller region for the ro and rw filesystems.
>
> Signed-off-by: Joel Stanley <joel at jms.id.au>

Perfect. We can move the layout in its own .dtsi file if some other board
needs it one day. 

Reviewed-by: Cédric Le Goater <clg at kaod.org>

Thanks,

C.

> ---
>  arch/arm/boot/dts/aspeed-ast2600-evb.dts | 32 +++++++++++++++++++++++-
>  1 file changed, 31 insertions(+), 1 deletion(-)
> 
> diff --git a/arch/arm/boot/dts/aspeed-ast2600-evb.dts b/arch/arm/boot/dts/aspeed-ast2600-evb.dts
> index 7bcafb027afa..0b3d3978c4d3 100644
> --- a/arch/arm/boot/dts/aspeed-ast2600-evb.dts
> +++ b/arch/arm/boot/dts/aspeed-ast2600-evb.dts
> @@ -96,7 +96,37 @@
>  		m25p,fast-read;
>  		label = "bmc";
>  		spi-max-frequency = <50000000>;
> -#include "openbmc-flash-layout.dtsi"
> +
> +		partitions {
> +			compatible = "fixed-partitions";
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +
> +			u-boot at 0 {
> +				reg = <0x0 0xe0000>; // 896KB
> +				label = "u-boot";
> +			};
> +
> +			u-boot-env at e0000 {
> +				reg = <0xe0000 0x20000>; // 128KB
> +				label = "u-boot-env";
> +			};
> +
> +			kernel at 100000 {
> +				reg = <0x100000 0x900000>; // 9MB
> +				label = "kernel";
> +			};
> +
> +			rofs at a00000 {
> +				reg = <0xa00000 0x2000000>; // 32MB
> +				label = "rofs";
> +			};
> +
> +			rwfs at 6000000 {
> +				reg = <0x2a00000 0x1600000>; // 22MB
> +				label = "rwfs";
> +			};
> +		};
>  	};
>  };
>  
>