[PATCH v2 4/4] ARM: davinci: da850-evm: add SPI flash support

Manjunathappa, Prakash prakash.pm at ti.com
Mon Mar 4 08:47:48 EST 2013


On Mon, Mar 04, 2013 at 18:29:15, Manjunathappa, Prakash wrote:
> Enable m25p64 SPI flash support on da850-EVM. Also
> add partition information of SPI flash.
> 
> Signed-off-by: Manjunathappa, Prakash <prakash.pm at ti.com>
> ---
> Since v1:
> Look for m25p64 instead of m25p80.
> Corrected the filesystem partition information.
> 
>  arch/arm/boot/dts/da850-evm.dts |   40 +++++++++++++++++++++++++++++++++++++++
>  1 files changed, 40 insertions(+), 0 deletions(-)
> 
> diff --git a/arch/arm/boot/dts/da850-evm.dts b/arch/arm/boot/dts/da850-evm.dts
> index c359872..3306d82 100644
> --- a/arch/arm/boot/dts/da850-evm.dts
> +++ b/arch/arm/boot/dts/da850-evm.dts
> @@ -41,6 +41,46 @@
>  		wdt: wdt at 1c21000 {
>  			status = "okay";
>  		};
> +		spi1: spi at 1f0e000 {
> +			status = "okay";
> +			pinctrl-names = "default";
> +			pinctrl-0 = <&spi1_pins>;
> +			flash: m25p80 at 0 {
> +				#address-cells = <1>;
> +				#size-cells = <1>;
> +				compatible = "m25p64";
> +				spi-max-frequency = <30000000>;
> +				reg = <0>;
> +				partition at 0 {
> +					label = "U-Boot-SPL";
> +					reg = <0x00000000 0x00010000>;
> +					read-only;
> +				};
> +				partition at 1 {
> +					label = "U-Boot";
> +					reg = <0x00010000 0x00080000>;
> +					read-only;
> +				};
> +				partition at 2 {
> +					label = "U-Boot-Env";
> +					reg = <0x00090000 0x00010000>;
> +					read-only;
> +				};
> +				partition at 3 {
> +					label = "Kernel";
> +					reg = <0x000a0000 0x00280000>;
> +				};
> +				partition at 4 {
> +					label = "Filesystem";
> +					reg = <0x00320000 0x00400000>;
> +				};
> +				partition at 5 {
> +					label = "MAC-Address";
> +					reg = <0x00720000 0x00010000>;

Ah... MAC address is at the end of 8MB flash. Need to change above:
					reg = <0x007f0000 0x00010000>;
Will send v3 for this.

Thanks,
Prakash

> +					read-only;
> +				};
> +			};
> +		};
>  	};
>  	nand_cs3 at 62000000 {
>  		status = "okay";
> -- 
> 1.7.4.1
> 
> 




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