diff --git a/board/freescale/mpc8544ds/mpc8544ds.c b/board/freescale/mpc8544ds/mpc8544ds.c
index 31c3fad..3285cea 100644
--- a/board/freescale/mpc8544ds/mpc8544ds.c
+++ b/board/freescale/mpc8544ds/mpc8544ds.c
@@ -28,6 +28,7 @@
 #include <asm/immap_85xx.h>
 #include <asm/fsl_pci.h>
 #include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
 #include <asm/io.h>
 #include <miiphy.h>
 #include <libfdt.h>
@@ -127,7 +128,7 @@
 	puts("\n");
 
 #ifdef CONFIG_PCIE3
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
+	pcie_configured = is_serdes_configured(PCIE3);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE3)){
 		SET_STD_PCIE_INFO(pci_info[num], 3);
@@ -162,7 +163,7 @@
 #endif
 
 #ifdef CONFIG_PCIE1
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
 		SET_STD_PCIE_INFO(pci_info[num], 1);
@@ -193,7 +194,7 @@
 #endif
 
 #ifdef CONFIG_PCIE2
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
+	pcie_configured = is_serdes_configured(PCIE2);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE2)){
 		SET_STD_PCIE_INFO(pci_info[num], 2);
diff --git a/board/freescale/mpc8548cds/mpc8548cds.c b/board/freescale/mpc8548cds/mpc8548cds.c
index 14c902c..ebeb897 100644
--- a/board/freescale/mpc8548cds/mpc8548cds.c
+++ b/board/freescale/mpc8548cds/mpc8548cds.c
@@ -29,6 +29,7 @@
 #include <asm/immap_85xx.h>
 #include <asm/fsl_pci.h>
 #include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
 #include <spd_sdram.h>
 #include <miiphy.h>
 #include <libfdt.h>
@@ -332,7 +333,7 @@
 #endif /* CONFIG_PCI2 */
 
 #ifdef CONFIG_PCIE1
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
 		SET_STD_PCIE_INFO(pci_info[num], 1);
diff --git a/board/freescale/mpc8568mds/mpc8568mds.c b/board/freescale/mpc8568mds/mpc8568mds.c
index d74fcac..71cfbf0 100644
--- a/board/freescale/mpc8568mds/mpc8568mds.c
+++ b/board/freescale/mpc8568mds/mpc8568mds.c
@@ -29,6 +29,7 @@
 #include <asm/immap_85xx.h>
 #include <asm/fsl_pci.h>
 #include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
 #include <spd_sdram.h>
 #include <i2c.h>
 #include <ioports.h>
@@ -399,7 +400,7 @@
 #endif
 
 #ifdef CONFIG_PCIE1
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
 		SET_STD_PCIE_INFO(pci_info[num], 1);
diff --git a/board/freescale/mpc8569mds/mpc8569mds.c b/board/freescale/mpc8569mds/mpc8569mds.c
index dc0884e..9700b8c 100644
--- a/board/freescale/mpc8569mds/mpc8569mds.c
+++ b/board/freescale/mpc8569mds/mpc8569mds.c
@@ -31,6 +31,7 @@
 #include <asm/immap_85xx.h>
 #include <asm/fsl_pci.h>
 #include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
 #include <asm/io.h>
 #include <spd_sdram.h>
 #include <i2c.h>
@@ -579,7 +580,7 @@
 #endif
 
 #ifdef CONFIG_PCIE1
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
 		SET_STD_PCIE_INFO(pci_info[num], 1);
diff --git a/board/freescale/mpc8572ds/mpc8572ds.c b/board/freescale/mpc8572ds/mpc8572ds.c
index 120f35c..15a4d31 100644
--- a/board/freescale/mpc8572ds/mpc8572ds.c
+++ b/board/freescale/mpc8572ds/mpc8572ds.c
@@ -30,6 +30,7 @@
 #include <asm/fsl_pci.h>
 #include <asm/fsl_ddr_sdram.h>
 #include <asm/io.h>
+#include <asm/fsl_serdes.h>
 #include <miiphy.h>
 #include <libfdt.h>
 #include <fdt_support.h>
@@ -187,7 +188,7 @@
 
 	puts("\n");
 #ifdef CONFIG_PCIE3
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
+	pcie_configured = is_serdes_configured(PCIE3);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE3)){
 		SET_STD_PCIE_INFO(pci_info[num], 3);
@@ -219,7 +220,7 @@
 #endif
 
 #ifdef CONFIG_PCIE2
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
+	pcie_configured = is_serdes_configured(PCIE2);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE2)){
 		SET_STD_PCIE_INFO(pci_info[num], 2);
@@ -239,7 +240,7 @@
 #endif
 
 #ifdef CONFIG_PCIE1
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
 		SET_STD_PCIE_INFO(pci_info[num], 1);
diff --git a/board/freescale/mpc8610hpcd/mpc8610hpcd.c b/board/freescale/mpc8610hpcd/mpc8610hpcd.c
index 61a635d..8abd917 100644
--- a/board/freescale/mpc8610hpcd/mpc8610hpcd.c
+++ b/board/freescale/mpc8610hpcd/mpc8610hpcd.c
@@ -27,6 +27,7 @@
 #include <asm/immap_86xx.h>
 #include <asm/fsl_pci.h>
 #include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
 #include <i2c.h>
 #include <asm/io.h>
 #include <libfdt.h>
@@ -225,7 +226,7 @@
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
 	volatile ccsr_gur_t *gur = &immap->im_gur;
 	struct fsl_pci_info pci_info[3];
-	u32 devdisr, pordevsr, io_sel;
+	u32 devdisr, pordevsr;
 	int first_free_busno = 0;
 	int num = 0;
 
@@ -233,13 +234,9 @@
 
 	devdisr = in_be32(&gur->devdisr);
 	pordevsr = in_be32(&gur->pordevsr);
-	io_sel = (pordevsr & MPC8610_PORDEVSR_IO_SEL)
-			>> MPC8610_PORDEVSR_IO_SEL_SHIFT;
-
-	debug ("   pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);
 
 #ifdef CONFIG_PCIE1
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC86xx_DEVDISR_PCIE1)){
 		SET_STD_PCIE_INFO(pci_info[num], 1);
@@ -260,7 +257,7 @@
 #endif
 
 #ifdef CONFIG_PCIE2
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
+	pcie_configured = is_serdes_configured(PCIE2);
 
 	if (pcie_configured && !(devdisr & MPC86xx_DEVDISR_PCIE2)){
 		SET_STD_PCIE_INFO(pci_info[num], 2);
diff --git a/board/freescale/mpc8641hpcn/mpc8641hpcn.c b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
index 882ff0b..e951021 100644
--- a/board/freescale/mpc8641hpcn/mpc8641hpcn.c
+++ b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
@@ -26,6 +26,7 @@
 #include <asm/immap_86xx.h>
 #include <asm/fsl_pci.h>
 #include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
 #include <asm/io.h>
 #include <libfdt.h>
 #include <fdt_support.h>
@@ -147,9 +148,7 @@
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
 	volatile ccsr_gur_t *gur = &immap->im_gur;
 	uint devdisr = in_be32(&gur->devdisr);
-	uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL)
-		>> MPC8641_PORDEVSR_IO_SEL_SHIFT;
-	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	int pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
 		SET_STD_PCIE_INFO(pci_info[num], 1);
diff --git a/board/freescale/p1_p2_rdb/pci.c b/board/freescale/p1_p2_rdb/pci.c
index 2a2d6b7..e95431b 100644
--- a/board/freescale/p1_p2_rdb/pci.c
+++ b/board/freescale/p1_p2_rdb/pci.c
@@ -24,6 +24,7 @@
 #include <command.h>
 #include <pci.h>
 #include <asm/immap_85xx.h>
+#include <asm/fsl_serdes.h>
 #include <asm/io.h>
 #include <asm/fsl_pci.h>
 #include <libfdt.h>
@@ -43,7 +44,7 @@
 {
 	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 	struct fsl_pci_info pci_info[2];
-	u32 devdisr, pordevsr, io_sel;
+	u32 devdisr, pordevsr;
 	int first_free_busno = 0;
 	int num = 0;
 
@@ -51,16 +52,13 @@
 
 	devdisr = in_be32(&gur->devdisr);
 	pordevsr = in_be32(&gur->pordevsr);
-	io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >> 19;
-
-	debug ("   pci_init_board: devdisr=%x, io_sel=%x\n", devdisr, io_sel);
 
 	if (!(pordevsr & MPC85xx_PORDEVSR_SGMII2_DIS))
 		printf("eTSEC2 is in sgmii mode.\n");
 
 	puts("\n");
 #ifdef CONFIG_PCIE2
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
+	pcie_configured = is_serdes_configured(PCIE2);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
 		SET_STD_PCIE_INFO(pci_info[num], 2);
@@ -79,7 +77,7 @@
 #endif
 
 #ifdef CONFIG_PCIE1
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
 		SET_STD_PCIE_INFO(pci_info[num], 1);
diff --git a/board/freescale/p2020ds/p2020ds.c b/board/freescale/p2020ds/p2020ds.c
index b05ef98..a40be13 100644
--- a/board/freescale/p2020ds/p2020ds.c
+++ b/board/freescale/p2020ds/p2020ds.c
@@ -30,6 +30,7 @@
 #include <asm/fsl_pci.h>
 #include <asm/fsl_ddr_sdram.h>
 #include <asm/io.h>
+#include <asm/fsl_serdes.h>
 #include <miiphy.h>
 #include <libfdt.h>
 #include <fdt_support.h>
@@ -210,7 +211,7 @@
 
 	puts("\n");
 #ifdef CONFIG_PCIE2
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
+	pcie_configured = is_serdes_configured(PCIE2);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE2)) {
 		SET_STD_PCIE_INFO(pci_info[num], 2);
@@ -250,7 +251,7 @@
 #endif
 
 #ifdef CONFIG_PCIE3
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
+	pcie_configured = is_serdes_configured(PCIE3);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE3)) {
 		SET_STD_PCIE_INFO(pci_info[num], 3);
@@ -269,7 +270,7 @@
 #endif
 
 #ifdef CONFIG_PCIE1
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)) {
 		SET_STD_PCIE_INFO(pci_info[num], 1);
diff --git a/board/sbc8548/sbc8548.c b/board/sbc8548/sbc8548.c
index 272428f..06c1eea 100644
--- a/board/sbc8548/sbc8548.c
+++ b/board/sbc8548/sbc8548.c
@@ -32,6 +32,7 @@
 #include <asm/immap_85xx.h>
 #include <asm/fsl_pci.h>
 #include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
 #include <spd_sdram.h>
 #include <netdev.h>
 #include <tsec.h>
@@ -364,7 +365,7 @@
 	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI2); /* disable PCI2 */
 
 #ifdef CONFIG_PCIE1
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
 		SET_STD_PCIE_INFO(pci_info[num], 1);
diff --git a/board/sbc8641d/sbc8641d.c b/board/sbc8641d/sbc8641d.c
index 5bf2364..5ee8f73 100644
--- a/board/sbc8641d/sbc8641d.c
+++ b/board/sbc8641d/sbc8641d.c
@@ -35,6 +35,7 @@
 #include <asm/immap_86xx.h>
 #include <asm/fsl_pci.h>
 #include <asm/fsl_ddr_sdram.h>
+#include <asm/fsl_serdes.h>
 #include <libfdt.h>
 #include <fdt_support.h>
 
@@ -210,13 +211,11 @@
 	volatile immap_t *immap = (immap_t *) CONFIG_SYS_CCSRBAR;
 	volatile ccsr_gur_t *gur = &immap->im_gur;
 	uint devdisr = in_be32(&gur->devdisr);
-	uint io_sel = (gur->pordevsr & MPC8641_PORDEVSR_IO_SEL)
-		>> MPC8641_PORDEVSR_IO_SEL_SHIFT;
 	int pcie_ep;
 	int num = 0;
 
 #ifdef CONFIG_PCIE1
-	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	int pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
 		SET_STD_PCIE_INFO(pci_info[num], 1);
diff --git a/board/tqc/tqm85xx/tqm85xx.c b/board/tqc/tqm85xx/tqm85xx.c
index 527af6d..43c73e1 100644
--- a/board/tqc/tqm85xx/tqm85xx.c
+++ b/board/tqc/tqm85xx/tqm85xx.c
@@ -38,6 +38,7 @@
 #include <asm/immap_85xx.h>
 #include <asm/fsl_pci.h>
 #include <asm/io.h>
+#include <asm/fsl_serdes.h>
 #include <linux/compiler.h>
 #include <ioports.h>
 #include <flash.h>
@@ -555,8 +556,6 @@
 	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
 	u32 devdisr = in_be32(&gur->devdisr);
 	u32 pordevsr = in_be32(&gur->pordevsr);
-	__maybe_unused uint io_sel = (pordevsr & MPC85xx_PORDEVSR_IO_SEL) >>
-			MPC85xx_PORDEVSR_IO_SEL_SHIFT;
 
 #ifdef CONFIG_PCI1
 	uint pci_32 = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_PCI32;
@@ -598,7 +597,7 @@
 #endif
 
 #ifdef CONFIG_PCIE1
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)) {
 		SET_STD_PCIE_INFO(pci_info[num], 1);
diff --git a/board/xes/common/fsl_8xxx_pci.c b/board/xes/common/fsl_8xxx_pci.c
index 4a0965b..4135849 100644
--- a/board/xes/common/fsl_8xxx_pci.c
+++ b/board/xes/common/fsl_8xxx_pci.c
@@ -24,6 +24,7 @@
 #include <common.h>
 #include <pci.h>
 #include <asm/fsl_pci.h>
+#include <asm/fsl_serdes.h>
 #include <asm/io.h>
 #include <linux/compiler.h>
 #include <libfdt.h>
@@ -81,11 +82,9 @@
 	volatile ccsr_gur_t *gur = &immap->im_gur;
 #endif
 	u32 devdisr = in_be32(&gur->devdisr);
-	u32 pordevsr = in_be32(&gur->pordevsr);
-	__maybe_unused uint io_sel = (pordevsr & MPC8xxx_PORDEVSR_IO_SEL) >>
-			MPC8xxx_PORDEVSR_IO_SEL_SHIFT;
 
 #ifdef CONFIG_PCI1
+	u32 pordevsr = in_be32(&gur->pordevsr);
 	uint pci_spd_norm = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_SPD;
 	uint pci_32 = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_PCI32;
 	uint pci_arb = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1_ARB;
@@ -114,7 +113,7 @@
 #endif
 
 #ifdef CONFIG_PCIE1
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	pcie_configured = is_serdes_configured(PCIE1);
 
 	if (pcie_configured && !(devdisr & MPC8xxx_DEVDISR_PCIE1)) {
 		SET_STD_PCIE_INFO(pci_info[num], 1);
@@ -131,7 +130,7 @@
 #endif /* CONFIG_PCIE1 */
 
 #ifdef CONFIG_PCIE2
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
+	pcie_configured = is_serdes_configured(PCIE2);
 
 	if (pcie_configured && !(devdisr & MPC8xxx_DEVDISR_PCIE2)) {
 		SET_STD_PCIE_INFO(pci_info[num], 2);
@@ -148,7 +147,7 @@
 #endif /* CONFIG_PCIE2 */
 
 #ifdef CONFIG_PCIE3
-	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
+	pcie_configured = is_serdes_configured(PCIE3);
 
 	if (pcie_configured && !(devdisr & MPC8xxx_DEVDISR_PCIE3)) {
 		SET_STD_PCIE_INFO(pci_info[num], 3);