Hi Stefan,
a new board revision of Omnia is coming. In this new revision the board information (serial number, MAC address) and board cryptography is implemented by the microcontroller. The ATSHA204A cryptochip is not present on this new revision.
Here are some changes regarding this.
Marek
Marek Behún (4): arm: mvebu: turris_omnia: Refactor MCU status and features reading arm: mvebu: turris_omnia: Implement getting board information from MCU arm: mvebu: turris_omnia: Print board ECDSA public key if available arm: mvebu: turris_omnia: Disable Atmel SHA node if not present
board/CZ.NIC/turris_atsha_otp.c | 27 +-- board/CZ.NIC/turris_common.c | 42 +++++ board/CZ.NIC/turris_common.h | 10 + board/CZ.NIC/turris_omnia/Makefile | 2 +- board/CZ.NIC/turris_omnia/turris_omnia.c | 229 +++++++++++++++++++---- 5 files changed, 252 insertions(+), 58 deletions(-) create mode 100644 board/CZ.NIC/turris_common.c create mode 100644 board/CZ.NIC/turris_common.h