diff --git a/configs/zynq_mars_zx2_defconfig b/configs/zynq_mars_zx2_defconfig
index e686efed91..143b849ae0 100644
--- a/configs/zynq_mars_zx2_defconfig
+++ b/configs/zynq_mars_zx2_defconfig
@@ -9,6 +9,8 @@ CONFIG_BOOT_SCRIPT_OFFSET=0x1f80000
 CONFIG_USE_BOOTCOMMAND=y
 CONFIG_BOOTCOMMAND="run $modeboot"
 CONFIG_ENCLUSTRA_QSPI_FLASHMAP=y
+CONFIG_PHY_MICREL=y
+CONFIG_PHY_MICREL_KSZ90X1=y
 # CONFIG_OF_LIST is not set
 # CONFIG_SPL is not set
 # CONFIG_ENV_IS_IN_SPI_FLASH is not set
diff --git a/configs/zynq_mars_zx3_defconfig b/configs/zynq_mars_zx3_defconfig
index 273b9f7a67..71f55c66bb 100644
--- a/configs/zynq_mars_zx3_defconfig
+++ b/configs/zynq_mars_zx3_defconfig
@@ -21,6 +21,8 @@ CONFIG_MTD_PARTITIONS=y
 CONFIG_USE_BOOTCOMMAND=y
 CONFIG_BOOTCOMMAND="run $modeboot"
 CONFIG_ENCLUSTRA_QSPI_FLASHMAP=y
+CONFIG_PHY_MICREL=y
+CONFIG_PHY_MICREL_KSZ90X1=y
 # CONFIG_OF_LIST is not set
 # CONFIG_SPL is not set
 # CONFIG_ENV_IS_IN_SPI_FLASH is not set
diff --git a/configs/zynq_mercury_defconfig b/configs/zynq_mercury_defconfig
index a6becc9ddb..bef1a1af05 100644
--- a/configs/zynq_mercury_defconfig
+++ b/configs/zynq_mercury_defconfig
@@ -21,6 +21,8 @@ CONFIG_MTD_PARTITIONS=y
 CONFIG_USE_BOOTCOMMAND=y
 CONFIG_BOOTCOMMAND="run $modeboot"
 CONFIG_ENCLUSTRA_QSPI_FLASHMAP=y
+CONFIG_PHY_MICREL=y
+CONFIG_PHY_MICREL_KSZ90X1=y
 # CONFIG_OF_LIST is not set
 # CONFIG_SPL is not set
 # CONFIG_ENV_IS_IN_SPI_FLASH is not set