diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 99dbea8c5c5..987036b60c8 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -125,11 +125,11 @@ head-$(CONFIG_PPC64)		+= arch/powerpc/kernel/entry_64.o
 head-$(CONFIG_PPC_FPU)		+= arch/powerpc/kernel/fpu.o
 
 core-y				+= arch/powerpc/kernel/ \
-				   arch/$(OLDARCH)/kernel/ \
 				   arch/powerpc/mm/ \
 				   arch/powerpc/lib/ \
 				   arch/powerpc/sysdev/ \
 				   arch/powerpc/platforms/
+core-$(CONFIG_PPC32)		+= arch/ppc/kernel/
 core-$(CONFIG_MATH_EMULATION)	+= arch/ppc/math-emu/
 core-$(CONFIG_XMON)		+= arch/powerpc/xmon/
 core-$(CONFIG_APUS)		+= arch/ppc/amiga/
@@ -165,7 +165,7 @@ define archhelp
   @echo '                    (your) ~/bin/installkernel or'
   @echo '                    (distribution) /sbin/installkernel or'
   @echo '                    install to $$(INSTALL_PATH) and run lilo'
-  @echo '  *_defconfig     - Select default config from arch/$(ARCH)/ppc/configs'
+  @echo '  *_defconfig     - Select default config from arch/$(ARCH)/configs'
 endef
 
 archclean:
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 0e679afb2e2..9ed551b6c17 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -17,7 +17,7 @@ obj-y				+= vdso32/
 obj-$(CONFIG_PPC64)		+= setup_64.o binfmt_elf32.o sys_ppc32.o \
 				   signal_64.o ptrace32.o systbl.o \
 				   paca.o ioctl32.o cpu_setup_power4.o \
-				   firmware.o sysfs.o udbg.o
+				   firmware.o sysfs.o udbg.o idle_64.o
 obj-$(CONFIG_PPC64)		+= vdso64/
 obj-$(CONFIG_ALTIVEC)		+= vecemu.o vector.o
 obj-$(CONFIG_POWER4)		+= idle_power4.o
@@ -35,6 +35,7 @@ obj-$(CONFIG_PPC_PSERIES)	+= udbg_16550.o
 obj-$(CONFIG_PPC_MAPLE)		+= udbg_16550.o
 udbgscc-$(CONFIG_PPC64)		:= udbg_scc.o
 obj-$(CONFIG_PPC_PMAC)		+= $(udbgscc-y)
+obj64-$(CONFIG_PPC_MULTIPLATFORM) += nvram_64.o
 
 ifeq ($(CONFIG_PPC_MERGE),y)
 
@@ -78,5 +79,7 @@ smpobj-$(CONFIG_SMP)		+= smp.o
 
 endif
 
+obj-$(CONFIG_PPC64)		+= $(obj64-y)
+
 extra-$(CONFIG_PPC_FPU)		+= fpu.o
 extra-$(CONFIG_PPC64)		+= entry_64.o
diff --git a/arch/ppc64/kernel/idle.c b/arch/powerpc/kernel/idle_64.c
similarity index 100%
rename from arch/ppc64/kernel/idle.c
rename to arch/powerpc/kernel/idle_64.c
diff --git a/arch/ppc64/kernel/nvram.c b/arch/powerpc/kernel/nvram_64.c
similarity index 100%
rename from arch/ppc64/kernel/nvram.c
rename to arch/powerpc/kernel/nvram_64.c
diff --git a/arch/ppc64/Makefile b/arch/ppc64/Makefile
deleted file mode 100644
index a55a82d145d..00000000000
--- a/arch/ppc64/Makefile
+++ /dev/null
@@ -1,142 +0,0 @@
-# This file is included by the global makefile so that you can add your own
-# architecture-specific flags and dependencies. Remember to do have actions
-# for "archclean" and "archdep" for cleaning up and making dependencies for
-# this architecture
-#
-# This file is subject to the terms and conditions of the GNU General Public
-# License.  See the file "COPYING" in the main directory of this archive
-# for more details.
-#
-# Copyright (C) 1994 by Linus Torvalds
-# Changes for PPC by Gary Thomas
-# Rewritten by Cort Dougan and Paul Mackerras
-# Adjusted for PPC64 by Tom Gall
-#
-
-KERNELLOAD	:= 0xc000000000000000
-
-# Set default 32 bits cross compilers for vdso and boot wrapper
-CROSS32_COMPILE ?=
-
-CROSS32CC		:= $(CROSS32_COMPILE)gcc
-CROSS32AS		:= $(CROSS32_COMPILE)as
-CROSS32LD		:= $(CROSS32_COMPILE)ld
-CROSS32OBJCOPY		:= $(CROSS32_COMPILE)objcopy
-
-# If we have a biarch compiler, use it for 32 bits cross compile if
-# CROSS32_COMPILE wasn't explicitely defined, and add proper explicit
-# target type to target compilers
-
-HAS_BIARCH      := $(call cc-option-yn, -m64)
-ifeq ($(HAS_BIARCH),y)
-ifeq ($(CROSS32_COMPILE),)
-CROSS32CC	:= $(CC) -m32
-CROSS32AS	:= $(AS) -a32
-CROSS32LD	:= $(LD) -m elf32ppc
-CROSS32OBJCOPY	:= $(OBJCOPY)
-endif
-override AS	+= -a64
-override LD	+= -m elf64ppc
-override CC	+= -m64
-endif
-
-export CROSS32CC CROSS32AS CROSS32LD CROSS32OBJCOPY
-
-new_nm := $(shell if $(NM) --help 2>&1 | grep -- '--synthetic' > /dev/null; then echo y; else echo n; fi)
-
-ifeq ($(new_nm),y)
-NM		:= $(NM) --synthetic
-
-endif
-
-CHECKFLAGS	+= -m64 -D__powerpc__ -D__powerpc64__
-
-LDFLAGS		:= -m elf64ppc
-LDFLAGS_vmlinux	:= -Bstatic -e $(KERNELLOAD) -Ttext $(KERNELLOAD)
-CFLAGS		+= -msoft-float -pipe -mminimal-toc -mtraceback=none \
-		   -mcall-aixdesc
-# Temporary hack until we have migrated to asm-powerpc
-CPPFLAGS	+= -Iarch/$(ARCH)/include
-
-GCC_VERSION     := $(call cc-version)
-GCC_BROKEN_VEC	:= $(shell if [ $(GCC_VERSION) -lt 0400 ] ; then echo "y"; fi ;)
-
-ifeq ($(CONFIG_POWER4_ONLY),y)
-ifeq ($(CONFIG_ALTIVEC),y)
-ifeq ($(GCC_BROKEN_VEC),y)
-	CFLAGS += $(call cc-option,-mcpu=970)
-else
-	CFLAGS += $(call cc-option,-mcpu=power4)
-endif
-else
-	CFLAGS += $(call cc-option,-mcpu=power4)
-endif
-else
-	CFLAGS += $(call cc-option,-mtune=power4)
-endif
-
-# No AltiVec instruction when building kernel
-CFLAGS	+= $(call cc-option, -mno-altivec)
-
-# Enable unit-at-a-time mode when possible. It shrinks the
-# kernel considerably.
-CFLAGS += $(call cc-option,-funit-at-a-time)
-
-head-y := arch/ppc64/kernel/head.o
-head-y += arch/powerpc/kernel/fpu.o
-head-y += arch/powerpc/kernel/entry_64.o
-
-core-y				+= arch/ppc64/kernel/ arch/powerpc/kernel/
-core-y				+= arch/powerpc/mm/
-core-y				+= arch/powerpc/sysdev/
-core-y				+= arch/powerpc/platforms/
-core-y				+= arch/powerpc/lib/
-core-$(CONFIG_XMON)		+= arch/powerpc/xmon/
-drivers-$(CONFIG_OPROFILE)	+= arch/powerpc/oprofile/
-
-boot := arch/ppc64/boot
-
-boottargets-$(CONFIG_PPC_PSERIES) += zImage zImage.initrd
-boottargets-$(CONFIG_PPC_PMAC) += zImage.vmode zImage.initrd.vmode
-boottargets-$(CONFIG_PPC_MAPLE) += zImage zImage.initrd
-boottargets-$(CONFIG_PPC_ISERIES) += vmlinux.sminitrd vmlinux.initrd vmlinux.sm
-boottargets-$(CONFIG_PPC_BPA) += zImage zImage.initrd
-$(boottargets-y): vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) $(boot)/$@
-
-bootimage-$(CONFIG_PPC_PSERIES) := $(boot)/zImage
-bootimage-$(CONFIG_PPC_PMAC) := vmlinux
-bootimage-$(CONFIG_PPC_MAPLE) := $(boot)/zImage
-bootimage-$(CONFIG_PPC_BPA) := $(boot)/zImage
-bootimage-$(CONFIG_PPC_ISERIES) := vmlinux
-BOOTIMAGE := $(bootimage-y)
-install: vmlinux
-	$(Q)$(MAKE) $(build)=$(boot) BOOTIMAGE=$(BOOTIMAGE) $@
-
-defaultimage-$(CONFIG_PPC_PSERIES) := zImage
-defaultimage-$(CONFIG_PPC_PMAC) := zImage.vmode
-defaultimage-$(CONFIG_PPC_MAPLE) := zImage
-defaultimage-$(CONFIG_PPC_ISERIES) := vmlinux
-KBUILD_IMAGE := $(defaultimage-y)
-all: $(KBUILD_IMAGE)
-
-archclean:
-	$(Q)$(MAKE) $(clean)=$(boot)
-	# Temporary hack until we have migrated to asm-powerpc
-	$(Q)rm -rf arch/$(ARCH)/include
-
-
-# Temporary hack until we have migrated to asm-powerpc
-include/asm: arch/$(ARCH)/include/asm
-arch/$(ARCH)/include/asm:
-	$(Q)if [ ! -d arch/$(ARCH)/include ]; then mkdir -p arch/$(ARCH)/include; fi
-	$(Q)ln -fsn $(srctree)/include/asm-powerpc arch/$(ARCH)/include/asm
-
-define archhelp
-  echo  '  zImage.vmode        - Compressed kernel image (arch/$(ARCH)/boot/zImage.vmode)'
-  echo  '  zImage.initrd.vmode - Compressed kernel image with initrd attached,'
-  echo  '                        sourced from arch/$(ARCH)/boot/ramdisk.image.gz'
-  echo  '                        (arch/$(ARCH)/boot/zImage.initrd.vmode)'
-  echo  '  zImage              - zImage for pSeries machines'
-  echo  '  zImage.initrd       - zImage with initrd for pSeries machines'
-endef
diff --git a/arch/ppc64/kernel/Makefile b/arch/ppc64/kernel/Makefile
deleted file mode 100644
index 5f0abdb66e0..00000000000
--- a/arch/ppc64/kernel/Makefile
+++ /dev/null
@@ -1,7 +0,0 @@
-#
-# Makefile for the linux ppc64 kernel.
-#
-
-obj-y               +=	idle.o
-
-obj-$(CONFIG_PPC_MULTIPLATFORM) += nvram.o