8xxx: Fix PCI bus address setup for 36-bit configs

We want the outbound PCI memory map to end at the 4G boundary so we
can maximize the amount of space available for inbound mappings if
we have large amounts of memory.

This matches the device tree setup in the kernel for the 36-bit physical
configs for the platforms that have one (MPC8641 HPCN & MPC8572 DS).

Signed-off-by: Kumar Gala <galak@kernel.crashing.org>
diff --git a/include/configs/P2020DS.h b/include/configs/P2020DS.h
index a39ff26..84b5686 100644
--- a/include/configs/P2020DS.h
+++ b/include/configs/P2020DS.h
@@ -437,7 +437,7 @@
 /* controller 3, Slot 1, tgtid 3, Base address b000 */
 #define CONFIG_SYS_PCIE3_MEM_VIRT	0x80000000
 #ifdef CONFIG_PHYS_64BIT
-#define CONFIG_SYS_PCIE3_MEM_BUS	0xc0000000
+#define CONFIG_SYS_PCIE3_MEM_BUS	0xe0000000
 #define CONFIG_SYS_PCIE3_MEM_PHYS	0xc00000000ull
 #else
 #define CONFIG_SYS_PCIE3_MEM_BUS	0x80000000
@@ -456,7 +456,7 @@
 /* controller 2, direct to uli, tgtid 2, Base address 9000 */
 #define CONFIG_SYS_PCIE2_MEM_VIRT	0xa0000000
 #ifdef CONFIG_PHYS_64BIT
-#define CONFIG_SYS_PCIE2_MEM_BUS	0xc0000000
+#define CONFIG_SYS_PCIE2_MEM_BUS	0xe0000000
 #define CONFIG_SYS_PCIE2_MEM_PHYS	0xc20000000ull
 #else
 #define CONFIG_SYS_PCIE2_MEM_BUS	0xa0000000
@@ -475,7 +475,7 @@
 /* controller 1, Slot 2, tgtid 1, Base address a000 */
 #define CONFIG_SYS_PCIE1_MEM_VIRT	0xc0000000
 #ifdef CONFIG_PHYS_64BIT
-#define CONFIG_SYS_PCIE1_MEM_BUS	0xc0000000
+#define CONFIG_SYS_PCIE1_MEM_BUS	0xe0000000
 #define CONFIG_SYS_PCIE1_MEM_PHYS	0xc40000000ull
 #else
 #define CONFIG_SYS_PCIE1_MEM_BUS	0xc0000000