meta-asrock/meta-e3c256d4i/recipes-phosphor/flash/phosphor-software-manager/bios-update

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