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* [PATCH v4] ARM: dts: imx6qdl-nitrogen6x: Add SPI NOR partitions
@ 2017-11-28 17:49 ` Otavio Salvador
  0 siblings, 0 replies; 9+ messages in thread
From: Otavio Salvador @ 2017-11-28 17:49 UTC (permalink / raw)
  To: linux-arm-kernel
  Cc: Gary Bisson, Otavio Salvador, Fabio Estevam, devicetree,
	Sascha Hauer, linux-kernel, Rob Herring, Mark Rutland,
	Russell King, Shawn Guo

This adds the partitions definition for the SPI NOR to provide
backward compatibility with the documented[1] layout used with
Boundary Devices BSP.

1. https://boundarydevices.com/boot-flash-access-linux/

It exports to Linux:

 mtd0: bootloader
 mtd1: env
 mtd2: splash

Signed-off-by: Otavio Salvador <otavio@ossystems.com.br>
---

Changes in v4:
 - drop lock flag

Changes in v3:
 - use lock instead of read-only (Gary Bisson)

Changes in v2:
 - rework labels (Fabio Estevam)
 - add read-only flags (Fabio Estevam)

 arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
index 4bdf29169d2a..919b6b7619a4 100644
--- a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
@@ -276,6 +276,23 @@
 		compatible = "sst,sst25vf016b", "jedec,spi-nor";
 		spi-max-frequency = <20000000>;
 		reg = <0>;
+		#address-cells = <1>;
+		#size-cells = <1>;
+
+		partition@0 {
+			label = "bootloader";
+			reg = <0x0 0xc0000>;
+		};
+
+		partition@c0000 {
+			label = "env";
+			reg = <0xc0000 0x2000>;
+		};
+
+		partition@c2000 {
+			label = "splash";
+			reg = <0xc2000 0x13e000>;
+		};
 	};
 };
 
-- 
2.15.0

^ permalink raw reply related	[flat|nested] 9+ messages in thread

end of thread, other threads:[~2017-11-29 14:48 UTC | newest]

Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-11-28 17:49 [PATCH v4] ARM: dts: imx6qdl-nitrogen6x: Add SPI NOR partitions Otavio Salvador
2017-11-28 17:49 ` Otavio Salvador
2017-11-28 17:49 ` Otavio Salvador
2017-11-28 18:14 ` Fabio Estevam
2017-11-28 18:14   ` Fabio Estevam
2017-11-28 18:14   ` Fabio Estevam
2017-11-29 14:48 ` Shawn Guo
2017-11-29 14:48   ` Shawn Guo
2017-11-29 14:48   ` Shawn Guo

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