diff --git a/board/xes/common/fsl_8xxx_clk.c b/board/xes/common/fsl_8xxx_clk.c
index 0155670..f4a17b7 100644
--- a/board/xes/common/fsl_8xxx_clk.c
+++ b/board/xes/common/fsl_8xxx_clk.c
@@ -21,6 +21,7 @@
  */
 
 #include <common.h>
+#include <asm/io.h>
 
 /*
  * Return SYSCLK input frequency - 50 MHz or 66 MHz depending on POR config
@@ -33,9 +34,8 @@
 	immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
 	volatile ccsr_gur_t *gur = &immap->im_gur;
 #endif
-	u32 gpporcr = gur->gpporcr;
 
-	if (gpporcr & 0x10000)
+	if (in_be32(&gur->gpporcr) & 0x10000)
 		return 66666666;
 	else
 		return 50000000;
@@ -49,7 +49,7 @@
 unsigned long get_board_ddr_clk(ulong dummy)
 {
 	volatile ccsr_gur_t *gur = (void *)(CONFIG_SYS_MPC85xx_GUTS_ADDR);
-	u32 ddr_ratio = ((gur->porpllsr) & 0x00003e00) >> 9;
+	u32 ddr_ratio = (in_be32(&gur->porpllsr) & 0x00003e00) >> 9;
 
 	if (ddr_ratio == 0x7)
 		return get_board_sys_clk(dummy);
diff --git a/board/xes/common/fsl_8xxx_pci.c b/board/xes/common/fsl_8xxx_pci.c
index 463588f..a615820 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/io.h>
 #include <libfdt.h>
 #include <fdt_support.h>
 
@@ -182,18 +183,18 @@
 	immap_t *immap = (immap_t *)CONFIG_SYS_IMMR;
 	volatile ccsr_gur_t *gur = &immap->im_gur;
 #endif
-	uint devdisr = gur->devdisr;
-	uint io_sel = (gur->pordevsr & MPC8xxx_PORDEVSR_IO_SEL) >>
+	uint devdisr = in_be32(&gur->devdisr);
+	uint io_sel = (in_be32(&gur->pordevsr) & MPC8xxx_PORDEVSR_IO_SEL) >>
 			MPC8xxx_PORDEVSR_IO_SEL_SHIFT;
-	uint host_agent = (gur->porbmsr & MPC8xxx_PORBMSR_HA) >>
+	uint host_agent = (in_be32(&gur->porbmsr) & MPC8xxx_PORBMSR_HA) >>
 			MPC8xxx_PORBMSR_HA_SHIFT;
 	struct pci_region *r;
 
 #ifdef CONFIG_PCI1
-	uint pci_spd_norm = (gur->pordevsr & MPC85xx_PORDEVSR_PCI1_SPD);
-	uint pci_32 = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_PCI32;
-	uint pci_arb = gur->pordevsr & MPC85xx_PORDEVSR_PCI1_ARB;
-	uint pcix = gur->pordevsr & MPC85xx_PORDEVSR_PCI1;
+	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;
+	uint pcix = in_be32(&gur->pordevsr) & MPC85xx_PORDEVSR_PCI1;
 	uint freq = CONFIG_SYS_CLK_FREQ / 1000 / 1000;
 
 	width = 0; /* Silence compiler warning... */
@@ -203,12 +204,11 @@
 	host = host_agent_cfg[host_agent].pci_host[0];
 	r = hose->regions;
 
-
 	if (!(devdisr & MPC85xx_DEVDISR_PCI1)) {
 		printf("\n    PCI1: %d bit %s, %s %d MHz, %s, %s\n",
 			pci_32 ? 32 : 64,
 			pcix ? "PCIX" : "PCI",
-			pci_spd_norm ?  ">=" : "<=",
+			pci_spd_norm ? ">=" : "<=",
 			pcix ? freq * 2 : freq,
 			host ? "host" : "agent",
 			pci_arb ? "arbiter" : "external-arbiter");
@@ -245,7 +245,7 @@
 	}
 #elif defined CONFIG_MPC8548
 	/* PCI1 not present on MPC8572 */
-	gur->devdisr |= MPC85xx_DEVDISR_PCI1; /* disable */
+	setbits_be32(&gur->devdisr, MPC85xx_DEVDISR_PCI1);
 #endif
 #ifdef CONFIG_PCIE1
 	pci = (ccsr_fsl_pci_t *) CONFIG_SYS_PCIE1_ADDR;
@@ -257,10 +257,10 @@
 	if (width && !(devdisr & MPC8xxx_DEVDISR_PCIE1)) {
 		printf("\n    PCIE1 connected as %s (x%d)",
 			host ? "Root Complex" : "End Point", width);
-		if (pci->pme_msg_det) {
-			pci->pme_msg_det = 0xffffffff;
+		if (in_be32(&pci->pme_msg_det)) {
+			out_be32(&pci->pme_msg_det, 0xffffffff);
 			debug(" with errors.  Clearing.  Now 0x%08x",
-				pci->pme_msg_det);
+				in_be32(&pci->pme_msg_det));
 		}
 		printf("\n");
 
@@ -293,7 +293,7 @@
 				hose->first_busno, hose->last_busno);
 	}
 #else
-	gur->devdisr |= MPC8xxx_DEVDISR_PCIE1; /* disable */
+	setbits_be32(&gur->devdisr, MPC8xxx_DEVDISR_PCIE1);
 #endif /* CONFIG_PCIE1 */
 
 #ifdef CONFIG_PCIE2
@@ -306,10 +306,10 @@
 	if (width && !(devdisr & MPC8xxx_DEVDISR_PCIE2)) {
 		printf("\n    PCIE2 connected as %s (x%d)",
 			host ? "Root Complex" : "End Point", width);
-		if (pci->pme_msg_det) {
-			pci->pme_msg_det = 0xffffffff;
+		if (in_be32(&pci->pme_msg_det)) {
+			out_be32(&pci->pme_msg_det, 0xffffffff);
 			debug(" with errors.  Clearing.  Now 0x%08x",
-				pci->pme_msg_det);
+				in_be32(&pci->pme_msg_det));
 		}
 		printf("\n");
 
@@ -342,7 +342,7 @@
 				hose->first_busno, hose->last_busno);
 	}
 #else
-	gur->devdisr |= MPC8xxx_DEVDISR_PCIE2; /* disable */
+	setbits_be32(&gur->devdisr, MPC8xxx_DEVDISR_PCIE2);
 #endif /* CONFIG_PCIE2 */
 
 #ifdef CONFIG_PCIE3
@@ -355,10 +355,10 @@
 	if (width && !(devdisr & MPC8xxx_DEVDISR_PCIE3)) {
 		printf("\n    PCIE3 connected as %s (x%d)",
 			host ? "Root Complex" : "End Point", width);
-		if (pci->pme_msg_det) {
-			pci->pme_msg_det = 0xffffffff;
+		if (in_be32(&pci->pme_msg_det)) {
+			out_be32(&pci->pme_msg_det, 0xffffffff);
 			debug(" with errors.  Clearing.  Now 0x%08x",
-				pci->pme_msg_det);
+				in_be32(&pci->pme_msg_det));
 		}
 		printf("\n");
 
@@ -391,7 +391,7 @@
 				hose->first_busno, hose->last_busno);
 	}
 #else
-	gur->devdisr |= MPC8xxx_DEVDISR_PCIE3; /* disable */
+	setbits_be32(&gur->devdisr, MPC8xxx_DEVDISR_PCIE3);
 #endif /* CONFIG_PCIE3 */
 }
 
diff --git a/board/xes/xpedite5200/xpedite5200.c b/board/xes/xpedite5200/xpedite5200.c
index 77afdbc..7109771 100644
--- a/board/xes/xpedite5200/xpedite5200.c
+++ b/board/xes/xpedite5200/xpedite5200.c
@@ -40,7 +40,6 @@
 {
 	volatile ccsr_lbc_t *lbc = (void *)(CONFIG_SYS_MPC85xx_LBC_ADDR);
 	volatile ccsr_local_ecm_t *ecm = (void *)(CONFIG_SYS_MPC85xx_ECM_ADDR);
-
 	char *s;
 
 	printf("Board: X-ES %s PMC\n", CONFIG_SYS_BOARD_NAME);
@@ -56,10 +55,10 @@
 		printf("Cfg %s", s);
 	printf("\n");
 
-	lbc->ltesr = 0xffffffff;	/* Clear LBC error interrupts */
-	lbc->lteir = 0xffffffff;	/* Enable LBC error interrupts */
-	ecm->eedr = 0xffffffff;		/* Clear ecm errors */
-	ecm->eeer = 0xffffffff;		/* Enable ecm errors */
+	out_be32(&lbc->ltesr, 0xffffffff);	/* Clear LBC error IRQs */
+	out_be32(&lbc->lteir, 0xffffffff);	/* Enable LBC error IRQs */
+	out_be32(&ecm->eedr, 0xffffffff);	/* Clear ecm errors */
+	out_be32(&ecm->eeer, 0xffffffff);	/* Enable ecm errors */
 
 	return 0;
 }
@@ -79,11 +78,11 @@
 	printf("FLASH: Executed from FLASH%d\n", flash_sel ? 2 : 1);
 
 	if (flash_sel) {
-		lbc->br0 = CONFIG_SYS_BR1_PRELIM;
-		lbc->or0 = CONFIG_SYS_OR1_PRELIM;
+		out_be32(&lbc->br0, CONFIG_SYS_BR1_PRELIM);
+		out_be32(&lbc->or0, CONFIG_SYS_OR1_PRELIM);
 
-		lbc->br1 = CONFIG_SYS_BR0_PRELIM;
-		lbc->or1 = CONFIG_SYS_OR0_PRELIM;
+		out_be32(&lbc->br1, CONFIG_SYS_BR0_PRELIM);
+		out_be32(&lbc->or1, CONFIG_SYS_OR0_PRELIM);
 	}
 }
 
diff --git a/board/xes/xpedite5370/xpedite5370.c b/board/xes/xpedite5370/xpedite5370.c
index d54c699..48d9fc8 100644
--- a/board/xes/xpedite5370/xpedite5370.c
+++ b/board/xes/xpedite5370/xpedite5370.c
@@ -71,11 +71,11 @@
 	printf("FLASH: Executed from FLASH%d\n", flash_sel ? 2 : 1);
 
 	if (flash_sel) {
-		lbc->br0 = CONFIG_SYS_BR1_PRELIM;
-		lbc->or0 = CONFIG_SYS_OR1_PRELIM;
+		out_be32(&lbc->br0, CONFIG_SYS_BR1_PRELIM);
+		out_be32(&lbc->or0, CONFIG_SYS_OR1_PRELIM);
 
-		lbc->br1 = CONFIG_SYS_BR0_PRELIM;
-		lbc->or1 = CONFIG_SYS_OR0_PRELIM;
+		out_be32(&lbc->br1, CONFIG_SYS_BR0_PRELIM);
+		out_be32(&lbc->or1, CONFIG_SYS_OR0_PRELIM);
 	}
 }