diff --git a/drivers/net/Kconfig b/drivers/net/Kconfig
index 9fc28b1..2a7c8f9 100644
--- a/drivers/net/Kconfig
+++ b/drivers/net/Kconfig
@@ -548,21 +548,14 @@
 	  of the device (I/O space)
 endif #DM_ETH
 
-choice
-	prompt "SMC911X bus width"
-	default SMC911X_16_BIT
-
 config SMC911X_32_BIT
-	bool "Enable 32-bit interface"
-
-config SMC911X_16_BIT
-	bool "Enable 16-bit interface"
+	bool "Enable SMC911X 32-bit interface"
+	default n
 	help
-	  Define this if data bus is 16 bits. If your processor
-	  automatically converts one 32 bit word to two 16 bit
-	  words you may also try CONFIG_SMC911X_32_BIT.
+	  Define this if data bus is 32 bits. If your processor use a
+	  narrower 16 bit bus or cannot convert one 32 bit word to two 16 bit
+	  words, leave this to "n".
 
-endchoice
 endif #SMC911X
 
 config SUN7I_GMAC
diff --git a/drivers/net/smc911x.c b/drivers/net/smc911x.c
index 7b79831..d596d96 100644
--- a/drivers/net/smc911x.c
+++ b/drivers/net/smc911x.c
@@ -48,12 +48,6 @@
 
 #define DRIVERNAME "smc911x"
 
-#if defined (CONFIG_SMC911X_32_BIT) && \
-	defined (CONFIG_SMC911X_16_BIT)
-#error "SMC911X: Only one of CONFIG_SMC911X_32_BIT and \
-	CONFIG_SMC911X_16_BIT shall be set"
-#endif
-
 #if defined (CONFIG_SMC911X_32_BIT)
 static u32 smc911x_reg_read(struct smc911x_priv *priv, u32 offset)
 {
@@ -64,7 +58,7 @@
 {
 	writel(val, priv->iobase + offset);
 }
-#elif defined (CONFIG_SMC911X_16_BIT)
+#else
 static u32 smc911x_reg_read(struct smc911x_priv *priv, u32 offset)
 {
 	return (readw(priv->iobase + offset) & 0xffff) |
@@ -75,9 +69,7 @@
 	writew(val & 0xffff, priv->iobase + offset);
 	writew(val >> 16, priv->iobase + offset + 2);
 }
-#else
-#error "SMC911X: undefined bus width"
-#endif /* CONFIG_SMC911X_16_BIT */
+#endif /* CONFIG_SMC911X_32_BIT */
 
 static u32 smc911x_get_mac_csr(struct smc911x_priv *priv, u8 reg)
 {