On Sat, 27 Aug 2022 20:06:30 +0200 Pali Rohár pali@kernel.org wrote:
Store serial number from atsha cryptochip into the serial# env variable. U-Boot automatically puts content of this variable into the root device tree property serial-number when booting Linux kernel. Refactor turris atsha code and from turris_atsha_otp_get_serial_number() function returns directly string suitable for printing or storing into device tree. Because during different boot stages is env storage read-only, it is not possible to always store serial number into env storage. So introduce a new function turris_atsha_otp_init_serial_number() which is called at later stage and which ensures that serial number is correctly stored into env.
Signed-off-by: Pali Rohár pali@kernel.org
Reviewed-by: Marek Behún kabel@kernel.org