powerpc: Get 64-bit configs to compile with ARCH=powerpc

This is a bunch of mostly small fixes that are needed to get
ARCH=powerpc to compile for 64-bit.  This adds setup_64.c from
arch/ppc64/kernel/setup.c and locks.c from arch/ppc64/lib/locks.c.

Signed-off-by: Paul Mackerras <paulus@samba.org>
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index bc063ed..47a8eb6 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -10,6 +10,12 @@
 CFLAGS_btext.o		+= -fPIC
 endif
 
+obj-y				:= semaphore.o traps.o
+obj-$(CONFIG_ALTIVEC)		+= vecemu.o vector.o
+obj-$(CONFIG_POWER4)		+= idle_power4.o
+
+ifeq ($(CONFIG_PPC_MERGE),y)
+
 extra-$(CONFIG_PPC_STD_MMU)	:= head_32.o
 extra-$(CONFIG_PPC64)		:= head_64.o
 extra-$(CONFIG_40x)		:= head_4xx.o
@@ -21,15 +27,12 @@
 extra-$(CONFIG_PPC_FPU)		+= fpu.o
 extra-y				+= vmlinux.lds
 
-obj-y				+= traps.o prom.o semaphore.o
+obj-y				+= process.o init_task.o \
+				   prom.o systbl.o
 obj-$(CONFIG_PPC32)		+= entry_32.o setup_32.o misc_32.o
-obj-$(CONFIG_PPC64)		+= idle_power4.o
-obj-$(CONFIG_PPC64)		+= misc_64.o
-ifeq ($(CONFIG_PPC32),y)
+obj-$(CONFIG_PPC64)		+= setup_64.o misc_64.o
 obj-$(CONFIG_PPC_OF)		+= prom_init.o of_device.o
 obj-$(CONFIG_MODULES)		+= ppc_ksyms.o
-endif
-obj-$(CONFIG_ALTIVEC)		+= vecemu.o vector.o
 obj-$(CONFIG_BOOTX_TEXT)	+= btext.o
 
 ifeq ($(CONFIG_PPC_ISERIES),y)