diff --git a/configs/shenzhou/README.txt b/configs/shenzhou/README.txt
index e68bd7bf9f..e929f2b8ba 100644
--- a/configs/shenzhou/README.txt
+++ b/configs/shenzhou/README.txt
@@ -560,9 +560,9 @@ Shenzhou-specific Configuration Options
 
     CONFIG_STM32_PHYADDR - The 5-bit address of the PHY on the board
     CONFIG_STM32_MII - Support Ethernet MII interface
-    CONFIG_STM32_MII_MCO1 - Use MCO1 to clock the MII interface
-    CONFIG_STM32_MII_MCO2 - Use MCO2 to clock the MII interface
+    CONFIG_STM32_MII_MCO - Use MCO to clock the MII interface
     CONFIG_STM32_RMII - Support Ethernet RMII interface
+    CONFIG_STM32_RMII_MCO - Use MCO to clock the RMII interface
     CONFIG_STM32_AUTONEG - Use PHY autonegotion to determine speed and mode
     CONFIG_STM32_ETHFD - If CONFIG_STM32_AUTONEG is not defined, then this
       may be defined to select full duplex mode. Default: half-duplex
diff --git a/configs/shenzhou/include/board.h b/configs/shenzhou/include/board.h
index 8e4d895318..df4386cf1b 100644
--- a/configs/shenzhou/include/board.h
+++ b/configs/shenzhou/include/board.h
@@ -166,9 +166,9 @@
  * -- ---- -------------- ----------------------------------------------------------
  * PN NAME SIGNAL         NOTES
  * -- ---- -------------- ----------------------------------------------------------
- * 24 PA1  MII_RX_CLK     Ethernet PHY
- *         RMII_REF_CLK   Ethernet PHY
- * 25 PA2  MII_MDIO       Ethernet PHY
+ * 24 PA1  MII_RX_CLK     Ethernet PHY   NOTE:  Despite the MII labeling of these
+ *         RMII_REF_CLK   Ethernet PHY   signals, the DM916AEP is actually configured
+ * 25 PA2  MII_MDIO       Ethernet PHY   to work in RMII mode.
  * 48 PB11 MII_TX_EN      Ethernet PHY
  * 51 PB12 MII_TXD0       Ethernet PHY
  * 52 PB13 MII_TXD1       Ethernet PHY
@@ -186,11 +186,11 @@
 #  ifndef CONFIG_STM32_ETH_REMAP
 #    error "STM32 Ethernet requires CONFIG_STM32_ETH_REMAP"
 #  endif
-#  ifndef CONFIG_STM32_MII
-#    error "STM32 Ethernet requires CONFIG_STM32_MII"
+#  ifndef CONFIG_STM32_RMII
+#    error "STM32 Ethernet requires CONFIG_STM32_RMII"
 #  endif
-#  ifndef CONFIG_STM32_MII_MCO
-#    error "STM32 Ethernet requires CONFIG_STM32_MII_MCO"
+#  ifndef CONFIG_STM32_RMII_MCO
+#    error "STM32 Ethernet requires CONFIG_STM32_RMII_MCO"
 #  endif
 #endif
 
diff --git a/configs/shenzhou/nsh/defconfig b/configs/shenzhou/nsh/defconfig
index f231b26325..053717470e 100644
--- a/configs/shenzhou/nsh/defconfig
+++ b/configs/shenzhou/nsh/defconfig
@@ -161,7 +161,7 @@ CONFIG_STM32_JTAG_FULL_ENABLE=y
 # CONFIG_STM32_JTAG_NOJNTRST_ENABLE is not set
 # CONFIG_STM32_JTAG_SW_ENABLE is not set
 # CONFIG_STM32_FORCEPOWER is not set
-# CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG is not set`
+# CONFIG_ARCH_BOARD_STM32_CUSTOM_CLOCKCONFIG is not set
 
 #
 # SPI Configuration
@@ -173,8 +173,8 @@ CONFIG_STM32_JTAG_FULL_ENABLE=y
 # Ethernet MAC configuration
 #
 CONFIG_STM32_PHYADDR=1
-CONFIG_STM32_MII=y
-CONFIG_STM32_MII_MCO=y
+# CONFIG_STM32_MII is not set
+# CONFIG_STM32_MII_MCO is not set
 # CONFIG_STM32_MII_EXTCLK is not set
 CONFIG_STM32_AUTONEG=y
 CONFIG_STM32_PHYSR=16
@@ -183,6 +183,9 @@ CONFIG_STM32_PHYSR_100MBPS=0x0000
 CONFIG_STM32_PHYSR_MODE=0x0004
 CONFIG_STM32_PHYSR_FULLDUPLEX=0x0004
 # CONFIG_STM32_ETH_PTP is not set
+CONFIG_STM32_RMII=y
+CONFIG_STM32_RMII_MCO=y
+# CONFIG_STM32_RMII_EXTCLK is not set
 
 #
 # USB Host Configuration