ppc4xx: Consolidate pci_master_init() function

This patch removes the duplicted implementations of the pci_master_init()
function by introducing a weak default function for it. It can be
overridden by a board specific version.

Signed-off-by: Stefan Roese <sr@denx.de>
diff --git a/board/esd/pmc440/pmc440.c b/board/esd/pmc440/pmc440.c
index c5dc486..d0ff080 100644
--- a/board/esd/pmc440/pmc440.c
+++ b/board/esd/pmc440/pmc440.c
@@ -39,6 +39,8 @@
 #include <miiphy.h>
 #endif
 #include <serial.h>
+#include <asm/4xx_pci.h>
+
 #include "fpga.h"
 #include "pmc440.h"
 
@@ -600,24 +602,16 @@
 #endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_TARGET_INIT) */
 
 /*
- * pci_master_init
+ * Override weak default pci_master_init()
  */
 #if defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT)
 void pci_master_init(struct pci_controller *hose)
 {
-	unsigned short temp_short;
-
 	/*
-	 * Write the PowerPC440 EP PCI Configuration regs.
-	 * Enable PowerPC440 EP to be a master on the PCI bus (PMM).
-	 * Enable PowerPC440 EP to act as a PCI memory target (PTM).
+	 * Only configure the master in monach mode
 	 */
-	if (is_monarch()) {
-		pci_read_config_word(0, PCI_COMMAND, &temp_short);
-		pci_write_config_word(0, PCI_COMMAND,
-				      temp_short | PCI_COMMAND_MASTER |
-				      PCI_COMMAND_MEMORY);
-	}
+	if (is_monarch())
+		__pci_master_init(hose);
 }
 #endif /* defined(CONFIG_PCI) && defined(CONFIG_SYS_PCI_MASTER_INIT) */