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

Message ID 20180325195736.19782-1-u.kleine-koenig@pengutronix.de
State New
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Series
  • arm64: dts: armada-3720-espressobin: wire up spi flash
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Commit Message

Uwe Kleine-König March 25, 2018, 7:57 p.m.
From: Ellie Reeves <ellierevves@gmail.com>

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 <ellierevves@gmail.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
---
 .../boot/dts/marvell/armada-3720-espressobin.dts   | 27 ++++++++++++++++++++++
 1 file changed, 27 insertions(+)

Comments

Gregory CLEMENT April 6, 2018, 9:42 a.m. | #1
Hi Uwe,
 
 On dim., mars 25 2018, Uwe Kleine-König <u.kleine-koenig@pengutronix.de> wrote:

> From: Ellie Reeves <ellierevves@gmail.com>
>
> 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.

>
> Signed-off-by: Ellie Reeves <ellierevves@gmail.com>
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>


Applied on mvebu/dt64-for-4.18

Thanks,

Gregory

> ---
>  .../boot/dts/marvell/armada-3720-espressobin.dts   | 27 ++++++++++++++++++++++
>  1 file changed, 27 insertions(+)
>
> diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
> index 882d6e4a04e4..5f98c2fecca4 100644
> --- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
> +++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
> @@ -108,6 +108,33 @@
>  	status = "okay";
>  };
>  
> +&spi0 {
> +	status = "okay";
> +
> +	flash@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@0 {
> +				label = "uboot";
> +				reg = <0 0x180000>;
> +			};
> +
> +			partition@180000 {
> +				label = "ubootenv";
> +				reg = <0x180000 0x10000>;
> +			};
> +		};
> +	};
> +};
> +
>  /* Exported on the micro USB connector J5 through an FTDI */
>  &uart0 {
>  	pinctrl-names = "default";
> -- 
> 2.16.2
>
>
> _______________________________________________
> linux-arm-kernel mailing list
> linux-arm-kernel@lists.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

Patch

diff --git a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
index 882d6e4a04e4..5f98c2fecca4 100644
--- a/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
+++ b/arch/arm64/boot/dts/marvell/armada-3720-espressobin.dts
@@ -108,6 +108,33 @@ 
 	status = "okay";
 };
 
+&spi0 {
+	status = "okay";
+
+	flash@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@0 {
+				label = "uboot";
+				reg = <0 0x180000>;
+			};
+
+			partition@180000 {
+				label = "ubootenv";
+				reg = <0x180000 0x10000>;
+			};
+		};
+	};
+};
+
 /* Exported on the micro USB connector J5 through an FTDI */
 &uart0 {
 	pinctrl-names = "default";