Hi,
On Fri, 3 Feb 2023 13:26:38 +0100 Jan Kiszka wrote:
From: Jan Kiszka jan.kiszka@siemens.com
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
arch/arm/dts/k3-am65-iot2050-boot-image.dtsi | 8 ++++++++ board/siemens/iot2050/Kconfig | 7 +++++++ doc/board/siemens/iot2050.rst | 8 ++++++++ tools/binman/missing-blob-help | 8 ++++++++ 4 files changed, 31 insertions(+)
diff --git a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi index 9082a79a034..25a22a7b7b8 100644 --- a/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi +++ b/arch/arm/dts/k3-am65-iot2050-boot-image.dtsi @@ -111,10 +111,18 @@ };
/* 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 };
I would rather include the closing brace in the #if #else block... Otherwise people who might copy part of the code will have a bad experience.
Lothar Waßmann