ppc4xx: Consolidate pci_target_init() function

This patch removes the duplicted implementations of the pci_target_init()
function by introducing a weak default function for it. This weak default
has a different implementation for 440EP(x)/GR(x) PPC's. It can be
overridden by a board specific version (e.g. PMC440, korat).

Signed-off-by: Stefan Roese <sr@denx.de>
Acked-by: Matthias Fuchs <matthias.fuchs@esd.eu>
diff --git a/include/configs/DU440.h b/include/configs/DU440.h
index e9ea1bf..65dc235 100644
--- a/include/configs/DU440.h
+++ b/include/configs/DU440.h
@@ -60,8 +60,9 @@
 #define CONFIG_SYS_PCI_MEMBASE1	CONFIG_SYS_PCI_MEMBASE  + 0x10000000
 #define CONFIG_SYS_PCI_MEMBASE2	CONFIG_SYS_PCI_MEMBASE1 + 0x10000000
 #define CONFIG_SYS_PCI_MEMBASE3	CONFIG_SYS_PCI_MEMBASE2 + 0x10000000
-#define CONFIG_SYS_PCI_IOBASE          0xe8000000
-
+#define CONFIG_SYS_PCI_IOBASE		0xe8000000
+#define CONFIG_SYS_PCI_SUBSYS_VENDORID	PCI_VENDOR_ID_ESDGMBH
+#define CONFIG_SYS_PCI_SUBSYS_ID	0x0444		/* device ID for DU440 */
 
 /* Don't change either of these */
 #define CONFIG_SYS_PERIPHERAL_BASE	0xef600000	/* internal peripherals	*/