meta-asrock/meta-spc621d8hm3/recipes-phosphor/flash/phosphor-software-manager/bios-update

BIOS_UPDATE_PREP_GPIOS=(
  ME_OVERRIDE=1
  FM_ME_RCVR_N=0
  FM_BIOS_SPI_BMC_CTRL=1
)
BIOS_UPDATE_MAGIC_OFFSET=16
BIOS_UPDATE_MAGIC=5aa5f00f
BIOS_UPDATE_SIZE=$((32 << 20))
BIOS_UPDATE_POWER_GPIO=FM_BMC_PWRBTN_OUT_N