diff --git a/board/mpc8641hpcn/mpc8641hpcn.c b/board/mpc8641hpcn/mpc8641hpcn.c
index 2626ccc..5023c1c 100644
--- a/board/mpc8641hpcn/mpc8641hpcn.c
+++ b/board/mpc8641hpcn/mpc8641hpcn.c
@@ -359,3 +359,67 @@ my_usage:
 	puts("For example:   reset cf 40 2.5 10\n");
 	puts("See MPC8641HPCN Design Workbook for valid values of command line parameters.\n");
 }
+
+/*
+ * get_board_sys_clk
+ *      Reads the FPGA on board for CONFIG_SYS_CLK_FREQ
+ */
+
+unsigned long get_board_sys_clk(ulong dummy)
+{
+	u8 i, go_bit, rd_clks;
+	ulong val = 0;
+
+	go_bit = in8(PIXIS_BASE + PIXIS_VCTL);
+	go_bit &= 0x01;
+
+	rd_clks = in8(PIXIS_BASE + PIXIS_VCFGEN0);
+	rd_clks &= 0x1C;
+
+	/*
+	 * Only if both go bit and the SCLK bit in VCFGEN0 are set
+	 * should we be using the AUX register. Remember, we also set the
+	 * GO bit to boot from the alternate bank on the on-board flash
+	 */
+
+	if (go_bit) {
+		if (rd_clks == 0x1c)
+			i = in8(PIXIS_BASE + PIXIS_AUX);
+		else
+			i = in8(PIXIS_BASE + PIXIS_SPD);
+	} else {
+		i = in8(PIXIS_BASE + PIXIS_SPD);
+	}
+
+	i &= 0x07;
+
+	switch (i) {
+	case 0:
+		val = 33000000;
+		break;
+	case 1:
+		val = 40000000;
+		break;
+	case 2:
+		val = 50000000;
+		break;
+	case 3:
+		val = 66000000;
+		break;
+	case 4:
+		val = 83000000;
+		break;
+	case 5:
+		val = 100000000;
+		break;
+	case 6:
+		val = 134000000;
+		break;
+	case 7:
+		val = 166000000;
+		break;
+	}
+
+	return val;
+}
+
diff --git a/board/mpc8641hpcn/oftree.dts b/board/mpc8641hpcn/oftree.dts
index e3f5efa..742a140 100644
--- a/board/mpc8641hpcn/oftree.dts
+++ b/board/mpc8641hpcn/oftree.dts
@@ -187,7 +187,7 @@
 			compatible = "ns16550";
 			reg = <4600 100>;
 			clock-frequency = <0>;
-			interrupts = <2a 2>;
+			interrupts = <1c 2>;
 			interrupt-parent = <40000>;
 		};
 
diff --git a/cpu/mpc86xx/speed.c b/cpu/mpc86xx/speed.c
index 8088b87..e130705 100644
--- a/cpu/mpc86xx/speed.c
+++ b/cpu/mpc86xx/speed.c
@@ -30,72 +30,6 @@
 #include <asm/processor.h>
 
 
-#ifdef MPC8641HPCN
-/*
- * get_board_sys_clk
- *	Reads the FPGA on board for CONFIG_SYS_CLK_FREQ
- */
-
-unsigned long get_board_sys_clk(ulong dummy)
-{
-	u8 i, go_bit, rd_clks;
-	ulong val = 0;
-
-	go_bit = in8(PIXIS_BASE + PIXIS_VCTL);
-	go_bit &= 0x01;
-
-	rd_clks = in8(PIXIS_BASE + PIXIS_VCFGEN0);
-	rd_clks &= 0x1C;
-
-	/*
-	 * Only if both go bit and the SCLK bit in VCFGEN0 are set
-	 * should we be using the AUX register. Remember, we also set the
-	 * GO bit to boot from the alternate bank on the on-board flash
-	 */
-
-	if (go_bit) {
-		if (rd_clks == 0x1c)
-			i = in8(PIXIS_BASE + PIXIS_AUX);
-		else
-			i = in8(PIXIS_BASE + PIXIS_SPD);
-	} else {
-		i = in8(PIXIS_BASE + PIXIS_SPD);
-	}
-
-	i &= 0x07;
-
-	switch (i) {
-	case 0:
-		val = 33000000;
-		break;
-	case 1:
-		val = 40000000;
-		break;
-	case 2:
-		val = 50000000;
-		break;
-	case 3:
-		val = 66000000;
-		break;
-	case 4:
-		val = 83000000;
-		break;
-	case 5:
-		val = 100000000;
-		break;
-	case 6:
-		val = 134000000;
-		break;
-	case 7:
-		val = 166000000;
-		break;
-	}
-
-	return val;
-}
-
-#endif
-
 void get_sys_info (sys_info_t *sysInfo)
 {
 	volatile immap_t    *immap = (immap_t *)CFG_IMMR;
diff --git a/doc/README.mpc8641hpcn b/doc/README.mpc8641hpcn
index 907a911..8ea0b1e 100644
--- a/doc/README.mpc8641hpcn
+++ b/doc/README.mpc8641hpcn
@@ -117,7 +117,7 @@ To Flash U-boot into the alternative bank (0xFF800000 - 0xFFBFFFFF):
 	0xf800_0000	0xf80f_ffff	CCSR		1M
 	0xf810_0000	0xf81f_ffff	PIXIS		1M
 	0xf840_0000	0xf840_3fff	Stack space	32K
-	0xe200_0000	0xe2ff_ffff	PCI1/PEX1 IO	512M
-	0xe300_0000	0xe3ff_ffff	PCI2/PEX2 IO	512M
+	0xe200_0000	0xe2ff_ffff	PCI1/PEX1 IO	16M
+	0xe300_0000	0xe3ff_ffff	PCI2/PEX2 IO	16M
 	0xfe00_0000	0xfeff_ffff	Flash(alternate)16M
 	0xff00_0000	0xffff_ffff	Flash(boot bank)16M