[PATCH V5 09/12] arm: dts: iot2050: Optionally embed OTP programming data into image
Lothar Waßmann
LW at KARO-electronics.de
Fri Feb 3 13:37:41 CET 2023
Hi,
On Fri, 3 Feb 2023 13:26:38 +0100 Jan Kiszka wrote:
> From: Jan Kiszka <jan.kiszka at 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 at 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 at 0x6c0000 {
> + offset = <0x6c0000>;
> + size = <0x010000>;
> + filename = "otpcmd.bin";
> + missing-msg = "iot2050-otpcmd";
> +#else
> fill at 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
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