arm64: dts: librem5: protect some partitions of the nor-flash

These sections should be read only as they contain important data.

Signed-off-by: Angus Ainslie <angus@akkea.ca>
Signed-off-by: Martin Kepplinger <martin.kepplinger@puri.sm>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index c2bbbdeb93e35ea6d46fa83464798dab6ab10581..2d248304432b83a4aa28ee6d9afbe88072121b93 100644 (file)
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -258,6 +258,25 @@
                compatible = "jedec,spi-nor";
                reg = <0>;
                spi-max-frequency = <1000000>;
+               #address-cells = <1>;
+               #size-cells = <1>;
+
+               partition@0 {
+                       label = "protected0";
+                       reg = <0x0 0x30000>;
+                       read-only;
+               };
+
+               partition@30000 {
+                       label = "protected1";
+                       reg = <0x30000 0x10000>;
+                       read-only;
+               };
+
+               partition@40000 {
+                       label = "rw";
+                       reg = <0x40000 0x1C0000>;
+               };
        };
 };