diff --git a/board/freescale/mpc837xemds/mpc837xemds.c b/board/freescale/mpc837xemds/mpc837xemds.c
index 6c537e244453f4a805e3ac88f0a05cc741e4280f..155907ee92453bf133900e3d60324a52011bb95b 100644
--- a/board/freescale/mpc837xemds/mpc837xemds.c
+++ b/board/freescale/mpc837xemds/mpc837xemds.c
@@ -44,7 +44,7 @@ int board_early_init_f(void)
 				 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 		break;
 	case SPR_8378:
-		fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX,
+		fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_PEX,
 				 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 		break;
 	case SPR_8379:
diff --git a/board/freescale/mpc837xerdb/mpc837xerdb.c b/board/freescale/mpc837xerdb/mpc837xerdb.c
index 18a21a197ea791c882231062104aa5ef677a1130..318a3dce710052410440f2d6e3d38d4338e2b17c 100644
--- a/board/freescale/mpc837xerdb/mpc837xerdb.c
+++ b/board/freescale/mpc837xerdb/mpc837xerdb.c
@@ -148,7 +148,7 @@ int board_early_init_f(void)
 				 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 		break;
 	case SPR_8378:
-		fsl_setup_serdes(CONFIG_FSL_SERDES1, FSL_SERDES_PROTO_PEX,
+		fsl_setup_serdes(CONFIG_FSL_SERDES2, FSL_SERDES_PROTO_PEX,
 				 FSL_SERDES_CLK_100, FSL_SERDES_VDD_1V);
 		break;
 	case SPR_8379: