diff --git a/cpu/ppc4xx/4xx_pci.c b/cpu/ppc4xx/4xx_pci.c
index e8871fc..2e75886 100644
--- a/cpu/ppc4xx/4xx_pci.c
+++ b/cpu/ppc4xx/4xx_pci.c
@@ -588,8 +588,9 @@
 	int busno;
 
 	busno = pci_440_init (&ppc440_hose);
-#if defined(CONFIG_440SPE) || \
-    defined(CONFIG_460EX) || defined(CONFIG_460GT)
+#if (defined(CONFIG_440SPE) || \
+    defined(CONFIG_460EX) || defined(CONFIG_460GT)) && \
+    !defined(CONFIG_PCI_DISABLE_PCIE)
 	pcie_setup_hoses(busno + 1);
 #endif
 }
diff --git a/cpu/ppc4xx/4xx_pcie.c b/cpu/ppc4xx/4xx_pcie.c
index fd40d8a..58d96bb 100644
--- a/cpu/ppc4xx/4xx_pcie.c
+++ b/cpu/ppc4xx/4xx_pcie.c
@@ -33,7 +33,7 @@
 
 #if (defined(CONFIG_440SPE) || defined(CONFIG_405EX) ||	\
     defined(CONFIG_460EX) || defined(CONFIG_460GT)) && \
-    defined(CONFIG_PCI)
+    defined(CONFIG_PCI) && !defined(CONFIG_PCI_DISABLE_PCIE)
 
 #include <asm/4xx_pcie.h>
 
diff --git a/cpu/ppc4xx/fdt.c b/cpu/ppc4xx/fdt.c
index c55e1cf..ba5c120 100644
--- a/cpu/ppc4xx/fdt.c
+++ b/cpu/ppc4xx/fdt.c
@@ -113,6 +113,7 @@
 void ft_cpu_setup(void *blob, bd_t *bd)
 {
 	sys_info_t sys_info;
+	int off, ndepth = 0;
 
 	get_sys_info(&sys_info);
 
@@ -133,9 +134,28 @@
 	fdt_fixup_memory(blob, (u64)bd->bi_memstart, (u64)bd->bi_memsize);
 
 	/*
-	 * Setup all baudrates for the UARTs
+	 * Fixup all UART clocks for CPU internal UARTs
+	 * (only these UARTs are definitely clocked by gd->uart_clk)
+	 *
+	 * These UARTs are direct childs of /plb/opb. This code
+	 * does not touch any UARTs that are connected to the ebc.
 	 */
-	do_fixup_by_compat_u32(blob, "ns16550", "clock-frequency", gd->uart_clk, 1);
+	off = fdt_path_offset(blob, "/plb/opb");
+	while ((off = fdt_next_node(blob, off, &ndepth)) >= 0) {
+		/*
+		 * process all sub nodes and stop when we are back
+		 * at the starting depth
+		 */
+		if (ndepth <= 0)
+			break;
+
+		/* only update direct childs */
+		if ((ndepth == 1) &&
+		    (fdt_node_check_compatible(blob, off, "ns16550") == 0))
+			fdt_setprop(blob, off,
+				    "clock-frequency",
+				    (void*)&(gd->uart_clk), 4);
+	}
 
 	/*
 	 * Fixup all ethernet nodes