[PATCH 4.4 041/312] ARM: dts: orion5x: fix the missing mtd flash on linkstation lswtgl

[Greg Kroah-Hartman]

From: Roger Shimizu <rogershimizu@xxxxxxxxx>

commit 44361a2cc13493fc41216d33bb9a562ec3a9cc4e upstream.

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.

Fixes: dc57844a736f ("ARM: dts: orion5x: add buffalo linkstation ls-wtgl")
Signed-off-by: Roger Shimizu <rogershimizu@xxxxxxxxx>
Reviewed-by: Andrew Lunn <andrew@xxxxxxx>
Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>

---
 arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts |   31 +++++++++++++++++++++++
 1 file changed, 31 insertions(+)

--- a/arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts
+++ b/arch/arm/boot/dts/orion5x-linkstation-lswtgl.dts
@@ -228,6 +228,37 @@
 	};
 };
 
+&devbus_bootcs {
+	status = "okay";
+	devbus,keep-config;
+
+	flash@0 {
+		compatible = "jedec-flash";
+		reg = <0 0x40000>;
+		bank-width = <1>;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			header@0 {
+				reg = <0 0x30000>;
+				read-only;
+			};
+
+			uboot@30000 {
+				reg = <0x30000 0xF000>;
+				read-only;
+			};
+
+			uboot_env@3F000 {
+				reg = <0x3F000 0x1000>;
+			};
+		};
+	};
+};
+
 &mdio {
 	status = "okay";