From mboxrd@z Thu Jan  1 00:00:00 1970
From: andrew@lunn.ch (Andrew Lunn)
Date: Wed, 27 Jan 2016 18:32:31 +0100
Subject: [PATCH] ARM: dts: orion5x: add mtd flash support to linkstation
 lswtgl
In-Reply-To: <1453907405-30434-1-git-send-email-rogershimizu@gmail.com>
References: <1453907405-30434-1-git-send-email-rogershimizu@gmail.com>
Message-ID: <20160127173231.GI20194@lunn.ch>
To: linux-arm-kernel@lists.infradead.org
List-Id: linux-arm-kernel.lists.infradead.org

On Thu, Jan 28, 2016 at 12:10:05AM +0900, Roger Shimizu wrote:
> MTD flash stores u-boot and u-boot environment on linkstation lswtgl.
> The latter one can be easily read/write by u-boot-tools package in Debian.
> 
> Signed-off-by: Roger Shimizu <rogershimizu@gmail.com>
> ---
>  arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts | 30 ++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts b/arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts
> index 420788229e6f..16eabc524b27 100644
> --- a/arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts
> +++ b/arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts
> @@ -228,6 +228,36 @@
>  	};
>  };
>  
> +&devbus_bootcs {
> +	status = "okay";
> +	devbus,keep-config;
> +
> +	flash at 0 {
> +		compatible = "jedec-flash";
> +		reg = <0 0x40000>;
> +		bank-width = <1>;
> +		#address-cells = <1>;
> +		#size-cells = <1>;
> +

Hi Roger

Same comment i just sent to Thomas:

The partition table should be a subnode of the mtd node and should be named
'partitions'. This node should have the following property:
- compatible : (required) must be "fixed-partitions"
Partitions are then defined in subnodes of the partitions node.

For backwards compatibility partitions as direct subnodes of the mtd device are
supported. This use is discouraged.

	   Andrew


> +		partition at 0 {
> +			label = "header";
> +			reg = <0 0x30000>;
> +			read-only;
> +		};
> +
> +		partition at 30000 {
> +			label = "uboot";
> +			reg = <0x30000 0xF000>;
> +			read-only;
> +		};
> +
> +		partition at 3F000 {
> +			label = "uboot_env";
> +			reg = <0x3F000 0x1000>;
> +		};
> +	};
> +};
> +
>  &mdio {
>  	status = "okay";
>  
> -- 
> 2.1.4
>