diff --git a/arch/arm/cpu/ixp/npe/npe.c b/arch/arm/cpu/ixp/npe/npe.c
index 2e68689..9d1090e 100644
--- a/arch/arm/cpu/ixp/npe/npe.c
+++ b/arch/arm/cpu/ixp/npe/npe.c
@@ -621,8 +621,9 @@ int npe_initialize(bd_t * bis)
 			if (ixFeatureCtrlDeviceRead() == IX_FEATURE_CTRL_DEVICE_TYPE_IXP42X) {
 				switch (ixFeatureCtrlProductIdRead() & IX_FEATURE_CTRL_SILICON_STEPPING_MASK) {
 				case IX_FEATURE_CTRL_SILICON_TYPE_B0:
+				default: /* newer than B0 */
 					/*
-					 * If it is B0 Silicon, we only enable port when its corresponding
+					 * If it is B0 or newer Silicon, we only enable port when its corresponding
 					 * Eth Coprocessor is available.
 					 */
 					if (ixFeatureCtrlComponentCheck(IX_FEATURECTRL_ETH0) ==