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 <ota...@ossystems.com.br>
---

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 | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi 
b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
index 4bdf29169d2a..f855d802533e 100644
--- a/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
+++ b/arch/arm/boot/dts/imx6qdl-nitrogen6x.dtsi
@@ -276,6 +276,26 @@
                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>;
+                       lock;
+               };
+
+               partition@c0000 {
+                       label = "env";
+                       reg = <0xc0000 0x2000>;
+                       lock;
+               };
+
+               partition@c2000 {
+                       label = "splash";
+                       reg = <0xc2000 0x13e000>;
+                       lock;
+               };
        };
 };
 
-- 
2.15.0

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