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arm64: dts: armada-3720-espressobin: wire up spi flash

PATCH New Uwe Kleine-König 2 participants 2 messages Mar 25, 2018 – Apr 6, 2018

Subsystems (2)
Device tree bindings Arm/Marvell Kirkwood and Armada 370, 375, 38x, 39x, XP, 3700, 7K/8K, CN9130 SoC support
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Uwe Kleine-König

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PATCH 1/1 arm64: dts: armada-3720-espressobin: wire up spi flash

From: Ellie Reeves <[email protected]>

This is the storage the machine boots from by default. The partitioning is taken from the U-Boot that is shipped with the board. There is some more space on the flash that isn't used.

Signed-off-by Ellie Reeves <[email protected]>
Signed-off-by Uwe Kleine-K?nig <[email protected]>
---
 .../boot/dts/marvell/armada-3720-espressobin.dts   | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts +27 -0
index 882d6e4a04e4..5f98c2fecca4 100644
@@ -108,6 +108,33 @@
 	status = "okay";
 };
 
+&spi0 {
+	status = "okay";
+
+	flash at 0 {
+		reg = <0>;
+		compatible = "winbond,w25q32dw", "jedec,spi-flash";
+		spi-max-frequency = <104000000>;
+		m25p,fast-read;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition at 0 {
+				label = "uboot";
+				reg = <0 0x180000>;
+			};
+
+			partition at 180000 {
+				label = "ubootenv";
+				reg = <0x180000 0x10000>;
+			};
+		};
+	};
+};
+
 /* Exported on the micro USB connector J5 through an FTDI */
 &uart0 {
 	pinctrl-names = "default";
Signature · 1 line
2.16.2
maintainer
#1 lore raw

PATCH 1/1 arm64: dts: armada-3720-espressobin: wire up spi flash

Hi Uwe,

Quoted 5 lines · Uwe Kleine-K?nig

From: Ellie Reeves <[email protected]>

This is the storage the machine boots from by default. The partitioning is taken from the U-Boot that is shipped with the board. There is some more space on the flash that isn't used.

I tested this patch and was able to read the uboot environement from Linux.

Quoted 3 lines
Signed-off-by Ellie Reeves <[email protected]>
Signed-off-by Uwe Kleine-K?nig <[email protected]>

Applied on mvebu/dt64-for-4.18

Thanks,

Gregory

Quoted 50 lines
---
 .../boot/dts/marvell/armada-3720-espressobin.dts   | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)
arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts +27 -0
index 882d6e4a04e4..5f98c2fecca4 100644
@@ -108,6 +108,33 @@
 	status = "okay";
 };
 
+&spi0 {
+	status = "okay";
+
+	flash at 0 {
+		reg = <0>;
+		compatible = "winbond,w25q32dw", "jedec,spi-flash";
+		spi-max-frequency = <104000000>;
+		m25p,fast-read;
+
+		partitions {
+			compatible = "fixed-partitions";
+			#address-cells = <1>;
+			#size-cells = <1>;
+
+			partition at 0 {
+				label = "uboot";
+				reg = <0 0x180000>;
+			};
+
+			partition at 180000 {
+				label = "ubootenv";
+				reg = <0x180000 0x10000>;
+			};
+		};
+	};
+};
+
 /* Exported on the micro USB connector J5 through an FTDI */
 &uart0 {
 	pinctrl-names = "default";
Signature · 7 lines
2.16.2


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Signature · 3 lines
Gregory Clement, Bootlin (formerly Free Electrons)
Embedded Linux and Kernel engineering
http://bootlin.com