arm: dts: iot2050: Optionally embed OTP programming data into image
Use external blob otpcmd.bin to replace the 0xff filled OTP programming
command block to create a firmware image that provisions the OTP on
first boot. This otpcmd.bin is generated from the customer keys using
steps described in the meta-iot2050 integration layer for the device.
Based on original patch by Baocheng Su.
Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
diff --git a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
index 9082a79..a2fc8bb 100644
--- a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
+++ b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi
@@ -111,10 +111,19 @@
};
/* OTP update command block */
+#if CONFIG_IOT2050_EMBED_OTPCMD
+ blob-ext@0x6c0000 {
+ offset = <0x6c0000>;
+ size = <0x010000>;
+ filename = "otpcmd.bin";
+ missing-msg = "iot2050-otpcmd";
+ };
+#else
fill@0x6c0000 {
offset = <0x6c0000>;
size = <0x010000>;
fill-byte = [ff];
};
+#endif
};
};