[PATCH 4/5] arm64: dts: librem5: protect some partitions of the nor-flash

Martin Kepplinger
2021-02-08T13:17:31Z

From: Angus Ainslie <angus@akkea.ca>

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>
---
.../arm64/boot/dts/freescale/imx8mq-librem5.dtsi | 16 ++++++++++++++++
1 file changed, 16 insertions(+)

diff --git a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
index c2bbbdeb93e3..9867e2a50008 100644
--- a/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mq-librem5.dtsi
@@ -258,6 +258,22 @@
compatible = "jedec,spi-nor";
reg = <0>;
spi-max-frequency = <1000000>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ partition@0x00000000 {
+ label = "protected0";
+ reg = <0x00000000 0x00030000>;
+ read-only;
+ };
+ partition@0x00030000 {
+ label = "protected1";
+ reg = <0x00030000 0x00010000>;
+ read-only;
+ };
+ partition@0x00040000 {
+ label = "rw";
+ reg = <0x00040000 0x001C0000>;
+ };
};
};

--
2.20.1