[PATCH v3 2/2] [POWERPC] MPC8568E-MDS: add support for flash

Kumar Gala galak at kernel.crashing.org
Fri Oct 19 05:58:25 EST 2007


On Oct 18, 2007, at 1:01 PM, Anton Vorontsov wrote:

> MPC8568E-MDS have 1 32MB Spansion x16 CFI flash chip. Let's use it.
>
> Signed-off-by: Anton Vorontsov <avorontsov at ru.mvista.com>
> ---
>  arch/powerpc/boot/dts/mpc8568mds.dts |   34 +++++++++++++++++++++++ 
> ++++++++++-
>  1 files changed, 33 insertions(+), 1 deletions(-)
>
> diff --git a/arch/powerpc/boot/dts/mpc8568mds.dts b/arch/powerpc/ 
> boot/dts/mpc8568mds.dts
> index be8d512..758ada4 100644
> --- a/arch/powerpc/boot/dts/mpc8568mds.dts
> +++ b/arch/powerpc/boot/dts/mpc8568mds.dts
> @@ -47,12 +47,44 @@
>  		#size-cells = <1>;
>  		compatible = "fsl,mpc8568-localbus";
>  		reg = <e0005000 d8>;
> -		ranges = <1 0 f8000000 0008000>;
> +		ranges = <1 0 f8000000 0008000
> +			  0 0 fe000000 2000000>;
>
>  		bcsr at 1,0 {
>  			device_type = "board-control";
>  			reg = <1 0 8000>;
>  		};
> +
> +		flash at 0,0 {
> +			#address-cells = <1>;
> +			#size-cells = <1>;
> +			compatible = "Spansion,S29GL256N11TFIV2O", "cfi-flash";
> +			reg = <0 0 2000000>;
> +			bank-width = <2>;
> +			device-width = <1>;
> +

Are you basing the partition map on something or making it up?   
Clearly hrcw & u-boot are at fixed offsets, wondering about kernel &  
rootfs?

> +			hrcw at 0 {
> +				label = "hrcw";
> +				reg = <0 20000>;
> +				read-only;
> +			};
> +
> +			kernel at 20000 {
> +				label = "kernel";
> +				reg = <20000 200000>;
> +			};
> +
> +			rootfs at 220000 {
> +				label = "rootfs";
> +				reg = <220000 1d60000>;
> +			};
> +
> +			uboot at 1f80000 {
> +				label = "u-boot";
> +				reg = <1f80000 80000>;
> +				read-only;
> +			};
> +		};
>  	};
>
>  	soc8568 at e0000000 {
> -- 
> 1.5.0.6
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