diff --git a/configs/SBx81LIFKW_defconfig b/configs/SBx81LIFKW_defconfig
index 8cb397c7570..f9ca3428a2a 100644
--- a/configs/SBx81LIFKW_defconfig
+++ b/configs/SBx81LIFKW_defconfig
@@ -10,6 +10,7 @@ CONFIG_SILENT_CONSOLE=y
 CONFIG_SILENT_U_BOOT_ONLY=y
 CONFIG_MISC_INIT_R=y
 CONFIG_HUSH_PARSER=y
+CONFIG_CMD_DM=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_I2C=y
 CONFIG_CMD_SF=y
@@ -40,6 +41,8 @@ CONFIG_MV88E61XX_SWITCH=y
 CONFIG_MV88E61XX_CPU_PORT=10
 CONFIG_MV88E61XX_PHY_PORTS=0x003
 CONFIG_MV88E61XX_FIXED_PORTS=0x300
+CONFIG_PHY_FIXED=y
+CONFIG_DM_ETH=y
 CONFIG_MII=y
 CONFIG_DM_RTC=y
 CONFIG_RTC_MV=y
diff --git a/configs/SBx81LIFXCAT_defconfig b/configs/SBx81LIFXCAT_defconfig
index 1f7ff812f47..a8dc9f17498 100644
--- a/configs/SBx81LIFXCAT_defconfig
+++ b/configs/SBx81LIFXCAT_defconfig
@@ -10,6 +10,7 @@ CONFIG_SILENT_CONSOLE=y
 CONFIG_SILENT_U_BOOT_ONLY=y
 CONFIG_MISC_INIT_R=y
 CONFIG_HUSH_PARSER=y
+CONFIG_CMD_DM=y
 # CONFIG_CMD_FLASH is not set
 CONFIG_CMD_GPIO=y
 CONFIG_CMD_I2C=y
@@ -44,6 +45,8 @@ CONFIG_MV88E61XX_SWITCH=y
 CONFIG_MV88E61XX_CPU_PORT=10
 CONFIG_MV88E61XX_PHY_PORTS=0x003
 CONFIG_MV88E61XX_FIXED_PORTS=0x300
+CONFIG_PHY_FIXED=y
+CONFIG_DM_ETH=y
 CONFIG_MII=y
 CONFIG_SPI=y
 CONFIG_DM_SPI=y