mpc512x: Move common files to share them by several boards

We will soon see several new MPC521x based boards added.  This patch
moves files that are not board specific to a common directory so they
can be shared by all such ports.  It also splits off common IDE code
into a new file, cpu/mpc512x/ide.c .

Signed-off-by: Wolfgang Denk <wd@denx.de>
Cc: John Rigby <jcrigby@gmail.com>
diff --git a/cpu/mpc512x/Makefile b/cpu/mpc512x/Makefile
index d6bfd59..022c676 100644
--- a/cpu/mpc512x/Makefile
+++ b/cpu/mpc512x/Makefile
@@ -22,11 +22,18 @@
 
 include $(TOPDIR)/config.mk
 
+$(shell mkdir -p $(OBJTREE)/board/freescale/common)
+
 LIB	= $(obj)lib$(CPU).a
 
 START	= start.o
 COBJS-y	:= traps.o cpu.o cpu_init.o speed.o interrupts.o serial.o i2c.o iopin.o
+COBJS-${CONFIG_FSL_DIU_FB} += diu.o
+COBJS-${CONFIG_FSL_DIU_FB} += ../../board/freescale/common/fsl_diu_fb.o
+COBJS-${CONFIG_FSL_DIU_FB} += ../../board/freescale/common/fsl_logo_bmp.o
+COBJS-${CONFIG_CMD_IDE} += ide.o
 COBJS-${CONFIG_IIM} += iim.o
+COBJS-$(CONFIG_PCI) += pci.o
 
 COBJS	:= $(COBJS-y)
 SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)