boards/snps/em_starterkit/board.yml

board:
  name: em_starterkit
  vendor: snps
  socs:
  - name: emsk_em7d
  - name: emsk_em9d
  - name: emsk_em11d
  revision:
    format: major.minor.patch
    default: "2.3"
    revisions:
    - name: "2.2"
    - name: "2.3"