diff --git a/board/freescale/mpc8536ds/mpc8536ds.c b/board/freescale/mpc8536ds/mpc8536ds.c
index 032d732..da72916 100644
--- a/board/freescale/mpc8536ds/mpc8536ds.c
+++ b/board/freescale/mpc8536ds/mpc8536ds.c
@@ -216,8 +216,8 @@
 {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE3_ADDR;
 	struct pci_controller *hose = &pcie3_hose;
-	int pcie_ep = (host_agent == 1);
-	int pcie_configured  = (io_sel == 7);
+	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_3, host_agent);
+	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
 	struct pci_region *r = hose->regions;
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
@@ -265,9 +265,8 @@
 {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
 	struct pci_controller *hose = &pcie1_hose;
-	int pcie_ep = (host_agent == 5);
-	int pcie_configured  = (io_sel == 2 || io_sel == 3
-				|| io_sel == 5 || io_sel == 7);
+	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
+	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
 	struct pci_region *r = hose->regions;
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
@@ -323,8 +322,8 @@
 {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE2_ADDR;
 	struct pci_controller *hose = &pcie2_hose;
-	int pcie_ep = (host_agent == 3);
-	int pcie_configured  = (io_sel == 5 || io_sel == 7);
+	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_2, host_agent);
+	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
 	struct pci_region *r = hose->regions;
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
@@ -381,7 +380,7 @@
 	struct pci_controller *hose = &pci1_hose;
 	struct pci_region *r = hose->regions;
 
-	uint pci_agent = (host_agent == 6);
+	uint pci_agent = is_fsl_pci_agent(LAW_TRGT_IF_PCI, host_agent);
 	uint pci_speed = 66666000; /*get_clock_freq (); PCI PSPEED in [4:5] */
 	uint pci_32 = 1;
 	uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;	/* PORDEVSR[14] */
diff --git a/board/freescale/mpc8544ds/mpc8544ds.c b/board/freescale/mpc8544ds/mpc8544ds.c
index 5a47d0a..244a197 100644
--- a/board/freescale/mpc8544ds/mpc8544ds.c
+++ b/board/freescale/mpc8544ds/mpc8544ds.c
@@ -125,8 +125,8 @@
 {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE3_ADDR;
 	struct pci_controller *hose = &pcie3_hose;
-	int pcie_ep = (host_agent == 1);
-	int pcie_configured  = io_sel >= 6;
+	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_3, host_agent);
+	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
 	struct pci_region *r = hose->regions;
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
@@ -188,8 +188,8 @@
  {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
 	struct pci_controller *hose = &pcie1_hose;
-	int pcie_ep = (host_agent == 5);
-	int pcie_configured  = io_sel >= 2;
+	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
+	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
 	struct pci_region *r = hose->regions;
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
@@ -246,8 +246,8 @@
  {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE2_ADDR;
 	struct pci_controller *hose = &pcie2_hose;
-	int pcie_ep = (host_agent == 3);
-	int pcie_configured  = io_sel >= 4;
+	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_2, host_agent);
+	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
 	struct pci_region *r = hose->regions;
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
@@ -306,7 +306,7 @@
 	struct pci_controller *hose = &pci1_hose;
 	struct pci_region *r = hose->regions;
 
-	uint pci_agent = (host_agent == 6);
+	uint pci_agent = is_fsl_pci_agent(LAW_TRGT_IF_PCI, host_agent);
 	uint pci_speed = 66666000; /*get_clock_freq (); PCI PSPEED in [4:5] */
 	uint pci_32 = 1;
 	uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;	/* PORDEVSR[14] */
diff --git a/board/freescale/mpc8548cds/mpc8548cds.c b/board/freescale/mpc8548cds/mpc8548cds.c
index 9df5f82..80de6f8 100644
--- a/board/freescale/mpc8548cds/mpc8548cds.c
+++ b/board/freescale/mpc8548cds/mpc8548cds.c
@@ -283,7 +283,7 @@
 	uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;	/* PORDEVSR[14] */
 	uint pci_clk_sel = gur->porpllsr & MPC85xx_PORDEVSR_PCI1_SPD;	/* PORPLLSR[16] */
 
-	uint pci_agent = (host_agent == 3) || (host_agent == 4 ) || (host_agent == 6);
+	uint pci_agent = is_fsl_pci_agent(LAW_TRGT_IF_PCI_1, host_agent);
 
 	uint pci_speed = get_clock_freq ();	/* PCI PSPEED in [4:5] */
 
@@ -361,10 +361,10 @@
 {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
 	struct pci_controller *hose = &pcie1_hose;
-	int pcie_ep =  (host_agent == 0) || (host_agent == 2 ) || (host_agent == 3);
+	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
 	struct pci_region *r = hose->regions;
 
-	int pcie_configured  = io_sel >= 1;
+	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
 
 	if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
 		printf ("\n    PCIE connected to slot as %s (base address %x)",
diff --git a/board/freescale/mpc8568mds/mpc8568mds.c b/board/freescale/mpc8568mds/mpc8568mds.c
index fe505b0..e2dc69e 100644
--- a/board/freescale/mpc8568mds/mpc8568mds.c
+++ b/board/freescale/mpc8568mds/mpc8568mds.c
@@ -422,10 +422,10 @@
 {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
 	struct pci_controller *hose = &pcie1_hose;
-	int pcie_ep =  (host_agent == 0) || (host_agent == 2 ) || (host_agent == 3);
+	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
 	struct pci_region *r = hose->regions;
 
-	int pcie_configured  = io_sel >= 1;
+	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
 
 	if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
 		printf ("\n    PCIE connected to slot as %s (base address %x)",
diff --git a/board/freescale/mpc8569mds/mpc8569mds.c b/board/freescale/mpc8569mds/mpc8569mds.c
index 63c21dd..cc88731 100644
--- a/board/freescale/mpc8569mds/mpc8569mds.c
+++ b/board/freescale/mpc8569mds/mpc8569mds.c
@@ -331,9 +331,9 @@
 
 	pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
 	hose = &pcie1_hose;
-	pcie_ep =  (host_agent == 0) || (host_agent == 2 ) || (host_agent == 3);
+	pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
 	r = hose->regions;
-	pcie_configured  = io_sel >= 1;
+	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
 
 	if (pcie_configured && !(gur->devdisr & MPC85xx_DEVDISR_PCIE)){
 		printf ("\n    PCIE connected to slot as %s (base address %x)",
diff --git a/board/freescale/mpc8572ds/mpc8572ds.c b/board/freescale/mpc8572ds/mpc8572ds.c
index 7da70fe..c69934c 100644
--- a/board/freescale/mpc8572ds/mpc8572ds.c
+++ b/board/freescale/mpc8572ds/mpc8572ds.c
@@ -186,9 +186,8 @@
 	{
 		volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE3_ADDR;
 		struct pci_controller *hose = &pcie3_hose;
-		int pcie_ep = (host_agent == 0) || (host_agent == 3) ||
-			(host_agent == 5) || (host_agent == 6);
-		int pcie_configured  = (io_sel == 0x7);
+		int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_3, host_agent);
+		int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
 		struct pci_region *r = hose->regions;
 		u32 temp32;
 
@@ -252,9 +251,8 @@
 	{
 		volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE2_ADDR;
 		struct pci_controller *hose = &pcie2_hose;
-		int pcie_ep = (host_agent == 2) || (host_agent == 4) ||
-			(host_agent == 6) || (host_agent == 0);
-		int pcie_configured  = (io_sel == 0x3) || (io_sel == 0x7);
+		int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_2, host_agent);
+		int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
 		struct pci_region *r = hose->regions;
 
 		if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE2)){
@@ -301,11 +299,8 @@
 	{
 		volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
 		struct pci_controller *hose = &pcie1_hose;
-		int pcie_ep = (host_agent <= 1) || (host_agent == 4) ||
-			(host_agent == 5);
-		int pcie_configured  = (io_sel == 0x2) || (io_sel == 0x3) ||
-					(io_sel == 0x7) || (io_sel == 0xb) ||
-					(io_sel == 0xc) || (io_sel == 0xf);
+		int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
+		int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
 		struct pci_region *r = hose->regions;
 
 		if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
diff --git a/board/freescale/mpc8610hpcd/mpc8610hpcd.c b/board/freescale/mpc8610hpcd/mpc8610hpcd.c
index 45000d9..98111eb 100644
--- a/board/freescale/mpc8610hpcd/mpc8610hpcd.c
+++ b/board/freescale/mpc8610hpcd/mpc8610hpcd.c
@@ -248,9 +248,8 @@
  {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
 	struct pci_controller *hose = &pcie1_hose;
-	int pcie_configured = (io_sel == 1) || (io_sel == 4);
-	int pcie_ep = (host_agent == 0) || (host_agent == 2) ||
-		(host_agent == 5);
+	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
+	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
 	struct pci_region *r = hose->regions;
 
 	if (pcie_configured && !(devdisr & MPC86xx_DEVDISR_PCIE1)) {
@@ -298,9 +297,8 @@
 	struct pci_controller *hose = &pcie2_hose;
 	struct pci_region *r = hose->regions;
 
-	int pcie_configured = (io_sel == 0) || (io_sel == 4);
-	int pcie_ep = (host_agent == 0) || (host_agent == 1) ||
-		(host_agent == 4);
+	int pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
+	int pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_2, host_agent);
 
 	if (pcie_configured && !(devdisr & MPC86xx_DEVDISR_PCIE2)) {
 		printf(" PCI-Express 2 connected to slot as %s" \
@@ -345,7 +343,7 @@
  {
 	volatile ccsr_fsl_pci_t *pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCI1_ADDR;
 	struct pci_controller *hose = &pci1_hose;
-	int pci_agent = (host_agent >= 4) && (host_agent <= 6);
+	int pci_agent = is_fsl_pci_agent(LAW_TRGT_IF_PCI_1, host_agent);
 	struct pci_region *r = hose->regions;
 
 	if ( !(devdisr & MPC86xx_DEVDISR_PCI1)) {
diff --git a/board/freescale/mpc8641hpcn/mpc8641hpcn.c b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
index fab4fae..1a08afa 100644
--- a/board/freescale/mpc8641hpcn/mpc8641hpcn.c
+++ b/board/freescale/mpc8641hpcn/mpc8641hpcn.c
@@ -155,15 +155,14 @@
 	uint devdisr = 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);
 
 #ifdef DEBUG
 	uint host1_agent = (gur->porbmsr & MPC8641_PORBMSR_HA)
 		>> MPC8641_PORBMSR_HA_SHIFT;
 	uint pex1_agent = (host1_agent == 0) || (host1_agent == 1);
 #endif
-	if ((io_sel == 2 || io_sel == 3 || io_sel == 5
-	     || io_sel == 6 || io_sel == 7 || io_sel == 0xF)
-	    && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
+	if (pcie_configured && !(devdisr & MPC86xx_DEVDISR_PCIEX1)) {
 		debug("PCI-EXPRESS 1: %s \n", pex1_agent ? "Agent" : "Host");
 		debug("0x%08x=0x%08x ", &pci->pme_msg_det, pci->pme_msg_det);
 		if (pci->pme_msg_det) {
diff --git a/board/freescale/p1_p2_rdb/pci.c b/board/freescale/p1_p2_rdb/pci.c
index 174a8a7..a3617d5 100644
--- a/board/freescale/p1_p2_rdb/pci.c
+++ b/board/freescale/p1_p2_rdb/pci.c
@@ -59,9 +59,8 @@
 
 #ifdef CONFIG_PCIE2
 	SET_STD_PCIE_INFO(pci_info[num], 2);
-	pcie_ep = (host_agent == 2) || (host_agent == 4) ||
-		(host_agent == 6) || (host_agent == 0);
-	pcie_configured  = (io_sel == 0xE);
+	pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_2, host_agent);
+	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
 		puts ("\n    PCIE2 connected to Slot 1 as ");
@@ -80,9 +79,8 @@
 #ifdef CONFIG_PCIE1
 	SET_STD_PCIE_INFO(pci_info[num], 1);
 
-	pcie_ep = (host_agent <= 1) || (host_agent == 4) ||
-		(host_agent == 5);
-	pcie_configured  = (io_sel == 0xE);
+	pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
+	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)){
 		puts ("\n    PCIE1 connected to Slot 2 as ");
diff --git a/board/freescale/p2020ds/p2020ds.c b/board/freescale/p2020ds/p2020ds.c
index 3fe72cd..7ad9be8 100644
--- a/board/freescale/p2020ds/p2020ds.c
+++ b/board/freescale/p2020ds/p2020ds.c
@@ -219,9 +219,8 @@
 #ifdef CONFIG_PCIE2
 	pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE2_ADDR;
 	hose = &pcie2_hose;
-	pcie_ep = (host_agent == 2) || (host_agent == 4) ||
-		  (host_agent == 6) || (host_agent == 0);
-	pcie_configured = (io_sel == 0x2) || (io_sel == 0xe);
+	pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_2, host_agent);
+	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_2, io_sel);
 	r = hose->regions;
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE2)) {
@@ -287,9 +286,8 @@
 #ifdef CONFIG_PCIE3
 	pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE3_ADDR;
 	hose = &pcie3_hose;
-	pcie_ep = (host_agent == 0) || (host_agent == 3) ||
-		(host_agent == 5) || (host_agent == 6);
-	pcie_configured = (io_sel == 0x2) || (io_sel == 0x4);
+	pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_3, host_agent);
+	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_3, io_sel);
 	r = hose->regions;
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE3)) {
@@ -336,8 +334,8 @@
 #ifdef CONFIG_PCIE1
 	pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
 	hose = &pcie1_hose;
-	pcie_ep = (host_agent <= 1) || (host_agent == 4) || (host_agent == 5);
-	pcie_configured  = (io_sel & 6) || (io_sel == 0xE) || (io_sel == 0xF);
+	pcie_ep = is_fsl_pci_agent(LAW_TRGT_IF_PCIE_1, host_agent);
+	pcie_configured = is_fsl_pci_cfg(LAW_TRGT_IF_PCIE_1, io_sel);
 	r = hose->regions;
 
 	if (pcie_configured && !(devdisr & MPC85xx_DEVDISR_PCIE)) {