ixp: Move conditional compilation to Makefile

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>

cpu/ixp/Makefile

@@ -26,10 +26,16 @@ include $(TOPDIR)/config.mk
 LIB	= $(obj)lib$(CPU).a
 
 START	= start.o
-COBJS	= serial.o interrupts.o cpu.o timer.o pci.o
-
-SRCS	:= $(START:.o=.S) $(SOBJS:.o=.S) $(COBJS:.o=.c)
-OBJS	:= $(addprefix $(obj),$(SOBJS) $(COBJS))
+COBJS-y	+= cpu.o
+COBJS-y	+= interrupts.o
+COBJS-$(CONFIG_PCI) += pci.o
+COBJS-y	+= serial.o
+ifndef CONFIG_USE_IRQ
+COBJS-y	+= timer.o
+endif
+
+SRCS	:= $(START:.o=.S) $(SOBJS-y:.o=.S) $(COBJS-y:.o=.c)
+OBJS	:= $(addprefix $(obj),$(SOBJS-y) $(COBJS-y))
 START	:= $(addprefix $(obj),$(START))
 
 all:	$(obj).depend $(START) $(LIB)

cpu/ixp/pci.c

@@ -24,9 +24,6 @@
 
 
 #include <common.h>
-
-#ifdef CONFIG_PCI
-
 #include <asm/processor.h>
 #include <asm/io.h>
 #include <pci.h>
@@ -572,4 +569,3 @@ pci_dev_t pci_find_devices (struct pci_device_id * ids, int devNo)
 	}
 	return -1;
 }
-#endif	/* CONFIG_PCI */

cpu/ixp/timer.c

@@ -32,7 +32,6 @@
 #include <common.h>
 #include <asm/arch/ixp425.h>
 
-#ifndef CONFIG_USE_IRQ
 ulong get_timer (ulong base)
 {
        return get_timer_masked () - base;
@@ -80,4 +79,3 @@ ulong get_timer_masked (void)
 	}
 	return (reload_constant - current);
 }
-#endif /* #ifndef CONFIG_USE_IRQ */