zephyr/boards/arduino/uno_r4/board.yml

boards:
  - name: arduino_uno_r4_minima
    full_name: Arduino UNO R4 Minima
    vendor: arduino
    socs:
      - name: r7fa4m1ab3cfm
  - name: arduino_uno_r4_wifi
    full_name: Arduino UNO R4 WiFi
    vendor: arduino
    socs:
      - name: r7fa4m1ab3cfm