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Message-Id: <20210208131527.24463-5-martin.kepplinger@puri.sm>
Date: Mon, 8 Feb 2021 14:15:26 +0100
From: Martin Kepplinger <martin.kepplinger@...i.sm>
To: robh@...nel.org, shawnguo@...nel.org, kernel@...gutronix.de,
festevam@...il.com
Cc: kernel@...i.sm, linux-imx@....com, devicetree@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
Angus Ainslie <angus@...ea.ca>,
Martin Kepplinger <martin.kepplinger@...i.sm>
Subject: [PATCH 4/5] arm64: dts: librem5: protect some partitions of the nor-flash
From: Angus Ainslie <angus@...ea.ca>
These sections should be read only as they contain important data.
Signed-off-by: Angus Ainslie <angus@...ea.ca>
Signed-off-by: Martin Kepplinger <martin.kepplinger@...i.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@...0000000 {
+ label = "protected0";
+ reg = <0x00000000 0x00030000>;
+ read-only;
+ };
+ partition@...0030000 {
+ label = "protected1";
+ reg = <0x00030000 0x00010000>;
+ read-only;
+ };
+ partition@...0040000 {
+ label = "rw";
+ reg = <0x00040000 0x001C0000>;
+ };
};
};
--
2.20.1
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