diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index fc502e0..7c80298 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -269,6 +269,52 @@ bootwrapper_install:
 %.dtb: scripts
 	$(Q)$(MAKE) ARCH=ppc64 $(build)=$(boot) $(patsubst %,$(boot)/%,$@)
 
+configfiles=$(wildcard $(srctree)/kernel/configs/$(1).config $(srctree)/arch/$(SRCARCH)/configs/$(1).config)
+
+define mergeconfig
+$(Q)$(CONFIG_SHELL) $(srctree)/scripts/kconfig/merge_config.sh -m -O $(objtree)/arch/$(SRCARCH)/configs $(objtree)/arch/$(SRCARCH)/configs/.config $(call configfiles,$(1))
+endef
+
+mpc85xx_defconfig:
+	$(Q)cp $(srctree)/arch/$(SRCARCH)/configs/mpc85xx_basic_defconfig $(srctree)/arch/$(SRCARCH)/configs/.config
+	$(call mergeconfig,32-bit)
+	$(call mergeconfig,uart6)
+	$(call mergeconfig,mpc85xx_misc)
+	$(Q)mv $(objtree)/arch/$(SRCARCH)/configs/.config $(objtree)/arch/$(SRCARCH)/configs/mpc85xx_tmp_defconfig
+	$(Q)$(MAKE) -f $(srctree)/Makefile mpc85xx_tmp_defconfig
+
+mpc85xx_smp_defconfig:
+	$(Q)cp $(srctree)/arch/$(SRCARCH)/configs/mpc85xx_basic_defconfig $(srctree)/arch/$(SRCARCH)/configs/.config
+	$(call mergeconfig,32-bit)
+	$(call mergeconfig,smp)
+	$(call mergeconfig,cpu8)
+	$(call mergeconfig,kvm_e500)
+	$(call mergeconfig,uart2)
+	$(call mergeconfig,i2c)
+	$(Q)mv $(objtree)/arch/$(SRCARCH)/configs/.config $(objtree)/arch/$(SRCARCH)/configs/mpc85xx_smp_tmp_defconfig
+	$(Q)$(MAKE) -f $(srctree)/Makefile mpc85xx_smp_tmp_defconfig
+
+corenet32_smp_defconfig:
+	$(Q)cp $(srctree)/arch/$(SRCARCH)/configs/corenet_defconfig $(srctree)/arch/$(SRCARCH)/configs/.config
+	$(call mergeconfig,32-bit)
+	$(call mergeconfig,smp)
+	$(call mergeconfig,cpu8)
+	$(call mergeconfig,corenet32_misc)
+	$(Q)mv $(objtree)/arch/$(SRCARCH)/configs/.config $(objtree)/arch/$(SRCARCH)/configs/corenet32_smp_tmp_defconfig
+	$(Q)$(MAKE) -f $(srctree)/Makefile corenet32_smp_tmp_defconfig
+
+corenet64_smp_defconfig:
+	$(Q)cp $(srctree)/arch/$(SRCARCH)/configs/corenet_defconfig $(srctree)/arch/$(SRCARCH)/configs/.config
+	$(call mergeconfig,64-bit)
+	$(call mergeconfig,smp)
+	$(call mergeconfig,cpu24)
+	$(call mergeconfig,dma)
+	$(call mergeconfig,math_emulation)
+	$(call mergeconfig,cgroup)
+	$(call mergeconfig,corenet64_misc)
+	$(Q)mv $(objtree)/arch/$(SRCARCH)/configs/.config $(objtree)/arch/$(SRCARCH)/configs/corenet64_smp_tmp_defconfig
+	$(Q)$(MAKE) -f $(srctree)/Makefile corenet64_smp_tmp_defconfig
+
 define archhelp
   @echo '* zImage          - Build default images selected by kernel config'
   @echo '  zImage.*        - Compressed kernel image (arch/$(ARCH)/boot/zImage.*)'
diff --git a/arch/powerpc/configs/32-bit.config b/arch/powerpc/configs/32-bit.config
new file mode 100644
index 0000000..3b8b43b
--- /dev/null
+++ b/arch/powerpc/configs/32-bit.config
@@ -0,0 +1 @@
+CONFIG_PPC_85xx=y
diff --git a/arch/powerpc/configs/64-bit.config b/arch/powerpc/configs/64-bit.config
new file mode 100644
index 0000000..b53af55
--- /dev/null
+++ b/arch/powerpc/configs/64-bit.config
@@ -0,0 +1,3 @@
+CONFIG_PPC64=y
+CONFIG_PPC_BOOK3E_64=y
+CONFIG_ALTIVEC=y
diff --git a/arch/powerpc/configs/cgroup.config b/arch/powerpc/configs/cgroup.config
new file mode 100644
index 0000000..a6012a3
--- /dev/null
+++ b/arch/powerpc/configs/cgroup.config
@@ -0,0 +1,4 @@
+CONFIG_CGROUPS=y
+CONFIG_CPUSETS=y
+CONFIG_CGROUP_CPUACCT=y
+CONFIG_CGROUP_SCHED=y
diff --git a/arch/powerpc/configs/corenet32_misc.config b/arch/powerpc/configs/corenet32_misc.config
new file mode 100644
index 0000000..4ad0ea1
--- /dev/null
+++ b/arch/powerpc/configs/corenet32_misc.config
@@ -0,0 +1,36 @@
+CONFIG_AT803X_PHY=y
+CONFIG_AUDIT=y
+CONFIG_CHR_DEV_ST=y
+CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS=n
+CONFIG_CRAMFS=y
+CONFIG_E1000=y
+CONFIG_EDAC_MPC85XX=y
+CONFIG_EMBEDDED=y
+CONFIG_EXT3_DEFAULTS_TO_ORDERED=n
+CONFIG_FORCE_MAX_ZONEORDER=13
+CONFIG_HIGHMEM=y
+CONFIG_INET_AH=y
+CONFIG_INET_IPCOMP=y
+CONFIG_KEXEC=y
+CONFIG_LEGACY_PTYS=n
+CONFIG_NET_KEY_MIGRATE=y
+CONFIG_NVRAM=y
+CONFIG_PATA_SIL680=y
+CONFIG_PCI=y
+CONFIG_PCIEASPM=n
+CONFIG_PERF_EVENTS=y
+CONFIG_POSIX_MQUEUE=y
+CONFIG_PPC_85xx=y
+CONFIG_RCU_TRACE=y
+CONFIG_SATA_AHCI=y
+CONFIG_SATA_SIL=y
+CONFIG_SCSI_LOGGING=y
+CONFIG_SCSI_SYM53C8XX_2=y
+CONFIG_SLAB=y
+CONFIG_STAGING=y
+CONFIG_UIO=y
+CONFIG_USB_OHCI_HCD=y
+CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
+CONFIG_USB_OHCI_HCD_PPC_OF_LE=y
+CONFIG_XFRM_STATISTICS=y
+CONFIG_XFRM_SUB_POLICY=y
diff --git a/arch/powerpc/configs/corenet32_smp_defconfig b/arch/powerpc/configs/corenet32_smp_defconfig
deleted file mode 100644
index 3765993..0000000
--- a/arch/powerpc/configs/corenet32_smp_defconfig
+++ /dev/null
@@ -1,185 +0,0 @@
-CONFIG_PPC_85xx=y
-CONFIG_SMP=y
-CONFIG_NR_CPUS=8
-CONFIG_SYSVIPC=y
-CONFIG_POSIX_MQUEUE=y
-CONFIG_AUDIT=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_BSD_PROCESS_ACCT=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_BLK_DEV_INITRD=y
-CONFIG_KALLSYMS_ALL=y
-CONFIG_EMBEDDED=y
-CONFIG_PERF_EVENTS=y
-CONFIG_SLAB=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_MODULE_FORCE_UNLOAD=y
-CONFIG_MODVERSIONS=y
-# CONFIG_BLK_DEV_BSG is not set
-CONFIG_PARTITION_ADVANCED=y
-CONFIG_MAC_PARTITION=y
-CONFIG_CORENET_GENERIC=y
-CONFIG_HIGHMEM=y
-# CONFIG_CORE_DUMP_DEFAULT_ELF_HEADERS is not set
-CONFIG_BINFMT_MISC=m
-CONFIG_KEXEC=y
-CONFIG_FORCE_MAX_ZONEORDER=13
-CONFIG_PCI=y
-CONFIG_PCIEPORTBUS=y
-# CONFIG_PCIEASPM is not set
-CONFIG_PCI_MSI=y
-CONFIG_RAPIDIO=y
-CONFIG_FSL_RIO=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_XFRM_USER=y
-CONFIG_XFRM_SUB_POLICY=y
-CONFIG_XFRM_STATISTICS=y
-CONFIG_NET_KEY=y
-CONFIG_NET_KEY_MIGRATE=y
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-CONFIG_IP_ADVANCED_ROUTER=y
-CONFIG_IP_MULTIPLE_TABLES=y
-CONFIG_IP_ROUTE_MULTIPATH=y
-CONFIG_IP_ROUTE_VERBOSE=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_PNP_BOOTP=y
-CONFIG_IP_PNP_RARP=y
-CONFIG_NET_IPIP=y
-CONFIG_IP_MROUTE=y
-CONFIG_IP_PIMSM_V1=y
-CONFIG_IP_PIMSM_V2=y
-CONFIG_INET_AH=y
-CONFIG_INET_ESP=y
-CONFIG_INET_IPCOMP=y
-# CONFIG_INET_LRO is not set
-CONFIG_IPV6=y
-CONFIG_IP_SCTP=m
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_DEVTMPFS=y
-CONFIG_DEVTMPFS_MOUNT=y
-CONFIG_MTD=y
-CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_BLOCK=y
-CONFIG_MTD_CFI=y
-CONFIG_MTD_CFI_INTELEXT=y
-CONFIG_MTD_CFI_AMDSTD=y
-CONFIG_MTD_PHYSMAP_OF=y
-CONFIG_MTD_NAND=y
-CONFIG_MTD_NAND_FSL_ELBC=y
-CONFIG_MTD_NAND_FSL_IFC=y
-CONFIG_MTD_SPI_NOR=y
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=131072
-CONFIG_BLK_DEV_SD=y
-CONFIG_CHR_DEV_ST=y
-CONFIG_BLK_DEV_SR=y
-CONFIG_CHR_DEV_SG=y
-CONFIG_SCSI_LOGGING=y
-CONFIG_SCSI_SYM53C8XX_2=y
-CONFIG_ATA=y
-CONFIG_SATA_AHCI=y
-CONFIG_SATA_FSL=y
-CONFIG_SATA_SIL24=y
-CONFIG_SATA_SIL=y
-CONFIG_PATA_SIL680=y
-CONFIG_NETDEVICES=y
-CONFIG_FSL_PQ_MDIO=y
-CONFIG_FSL_XGMAC_MDIO=y
-CONFIG_E1000=y
-CONFIG_E1000E=y
-CONFIG_AT803X_PHY=y
-CONFIG_VITESSE_PHY=y
-CONFIG_FIXED_PHY=y
-CONFIG_MDIO_BUS_MUX_GPIO=y
-CONFIG_MDIO_BUS_MUX_MMIOREG=y
-# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-CONFIG_SERIO_LIBPS2=y
-# CONFIG_LEGACY_PTYS is not set
-CONFIG_PPC_EPAPR_HV_BYTECHAN=y
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_MANY_PORTS=y
-CONFIG_SERIAL_8250_DETECT_IRQ=y
-CONFIG_SERIAL_8250_RSA=y
-CONFIG_NVRAM=y
-CONFIG_I2C=y
-CONFIG_I2C_CHARDEV=y
-CONFIG_I2C_MPC=y
-CONFIG_I2C_MUX=y
-CONFIG_I2C_MUX_PCA954x=y
-CONFIG_SPI=y
-CONFIG_SPI_GPIO=y
-CONFIG_SPI_FSL_SPI=y
-CONFIG_SPI_FSL_ESPI=y
-CONFIG_SENSORS_LM90=y
-CONFIG_SENSORS_INA2XX=y
-CONFIG_USB_HID=m
-CONFIG_USB=y
-CONFIG_USB_MON=y
-CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_EHCI_FSL=y
-CONFIG_USB_OHCI_HCD=y
-CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
-CONFIG_USB_OHCI_HCD_PPC_OF_LE=y
-CONFIG_USB_STORAGE=y
-CONFIG_MMC=y
-CONFIG_MMC_SDHCI=y
-CONFIG_EDAC=y
-CONFIG_EDAC_MM_EDAC=y
-CONFIG_EDAC_MPC85XX=y
-CONFIG_RTC_CLASS=y
-CONFIG_RTC_DRV_DS1307=y
-CONFIG_RTC_DRV_DS1374=y
-CONFIG_RTC_DRV_DS3232=y
-CONFIG_UIO=y
-CONFIG_VIRT_DRIVERS=y
-CONFIG_FSL_HV_MANAGER=y
-CONFIG_STAGING=y
-CONFIG_FSL_CORENET_CF=y
-CONFIG_CLK_QORIQ=y
-CONFIG_EXT2_FS=y
-CONFIG_EXT3_FS=y
-# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-CONFIG_ISO9660_FS=m
-CONFIG_JOLIET=y
-CONFIG_ZISOFS=y
-CONFIG_UDF_FS=m
-CONFIG_MSDOS_FS=m
-CONFIG_VFAT_FS=y
-CONFIG_NTFS_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_TMPFS=y
-CONFIG_HUGETLBFS=y
-CONFIG_JFFS2_FS=y
-CONFIG_CRAMFS=y
-CONFIG_NFS_FS=y
-CONFIG_NFS_V4=y
-CONFIG_ROOT_NFS=y
-CONFIG_NFSD=m
-CONFIG_NLS_CODEPAGE_437=y
-CONFIG_NLS_CODEPAGE_850=y
-CONFIG_NLS_ISO8859_1=y
-CONFIG_NLS_UTF8=m
-CONFIG_DEBUG_INFO=y
-CONFIG_MAGIC_SYSRQ=y
-CONFIG_DEBUG_SHIRQ=y
-CONFIG_DETECT_HUNG_TASK=y
-CONFIG_RCU_TRACE=y
-CONFIG_CRYPTO_NULL=y
-CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_MD4=y
-CONFIG_CRYPTO_SHA256=y
-CONFIG_CRYPTO_SHA512=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
-CONFIG_CRYPTO_DEV_FSL_CAAM=y
diff --git a/arch/powerpc/configs/corenet64_misc.config b/arch/powerpc/configs/corenet64_misc.config
new file mode 100644
index 0000000..c079055
--- /dev/null
+++ b/arch/powerpc/configs/corenet64_misc.config
@@ -0,0 +1,16 @@
+CONFIG_BLK_DEV_SR_VENDOR=y
+CONFIG_CRC_T10DIF=y
+CONFIG_DEBUG_FS=y
+CONFIG_DUMMY=y
+CONFIG_EEPROM_LEGACY=y
+CONFIG_EXPERT=y
+CONFIG_FHANDLE=y
+CONFIG_FRAME_WARN=1024
+CONFIG_FTL=y
+CONFIG_INET_XFRM_MODE_BEET=n
+CONFIG_INPUT_FF_MEMLESS=m
+CONFIG_IRQ_DOMAIN_DEBUG=y
+CONFIG_JFFS2_FS_DEBUG=1
+CONFIG_MTD_UBI=y
+CONFIG_PPC_OF_BOOT_TRAMPOLINE=n
+CONFIG_UBIFS_FS=y
diff --git a/arch/powerpc/configs/corenet64_smp_defconfig b/arch/powerpc/configs/corenet_defconfig
similarity index 83%
rename from arch/powerpc/configs/corenet64_smp_defconfig
rename to arch/powerpc/configs/corenet_defconfig
index 33cd1df..89c43ee 100644
--- a/arch/powerpc/configs/corenet64_smp_defconfig
+++ b/arch/powerpc/configs/corenet_defconfig
@@ -1,23 +1,11 @@
-CONFIG_PPC64=y
-CONFIG_PPC_BOOK3E_64=y
-CONFIG_ALTIVEC=y
-CONFIG_SMP=y
-CONFIG_NR_CPUS=24
 CONFIG_SYSVIPC=y
-CONFIG_FHANDLE=y
-CONFIG_IRQ_DOMAIN_DEBUG=y
 CONFIG_NO_HZ=y
 CONFIG_HIGH_RES_TIMERS=y
 CONFIG_BSD_PROCESS_ACCT=y
 CONFIG_IKCONFIG=y
 CONFIG_IKCONFIG_PROC=y
 CONFIG_LOG_BUF_SHIFT=14
-CONFIG_CGROUPS=y
-CONFIG_CPUSETS=y
-CONFIG_CGROUP_CPUACCT=y
-CONFIG_CGROUP_SCHED=y
 CONFIG_BLK_DEV_INITRD=y
-CONFIG_EXPERT=y
 CONFIG_KALLSYMS_ALL=y
 CONFIG_MODULES=y
 CONFIG_MODULE_UNLOAD=y
@@ -27,10 +15,7 @@ CONFIG_MODVERSIONS=y
 CONFIG_PARTITION_ADVANCED=y
 CONFIG_MAC_PARTITION=y
 CONFIG_CORENET_GENERIC=y
-# CONFIG_PPC_OF_BOOT_TRAMPOLINE is not set
 CONFIG_BINFMT_MISC=m
-CONFIG_MATH_EMULATION=y
-CONFIG_MATH_EMULATION_HW_UNIMPLEMENTED=y
 CONFIG_PCIEPORTBUS=y
 CONFIG_PCI_MSI=y
 CONFIG_RAPIDIO=y
@@ -55,7 +40,6 @@ CONFIG_IP_MROUTE=y
 CONFIG_IP_PIMSM_V1=y
 CONFIG_IP_PIMSM_V2=y
 CONFIG_INET_ESP=y
-# CONFIG_INET_XFRM_MODE_BEET is not set
 # CONFIG_INET_LRO is not set
 CONFIG_IPV6=y
 CONFIG_IP_SCTP=m
@@ -65,7 +49,6 @@ CONFIG_DEVTMPFS_MOUNT=y
 CONFIG_MTD=y
 CONFIG_MTD_CMDLINE_PARTS=y
 CONFIG_MTD_BLOCK=y
-CONFIG_FTL=y
 CONFIG_MTD_CFI=y
 CONFIG_MTD_CFI_INTELEXT=y
 CONFIG_MTD_CFI_AMDSTD=y
@@ -74,20 +57,16 @@ CONFIG_MTD_NAND=y
 CONFIG_MTD_NAND_FSL_ELBC=y
 CONFIG_MTD_NAND_FSL_IFC=y
 CONFIG_MTD_SPI_NOR=y
-CONFIG_MTD_UBI=y
 CONFIG_BLK_DEV_LOOP=y
 CONFIG_BLK_DEV_RAM=y
 CONFIG_BLK_DEV_RAM_SIZE=131072
-CONFIG_EEPROM_LEGACY=y
 CONFIG_BLK_DEV_SD=y
 CONFIG_BLK_DEV_SR=y
-CONFIG_BLK_DEV_SR_VENDOR=y
 CONFIG_CHR_DEV_SG=y
 CONFIG_ATA=y
 CONFIG_SATA_FSL=y
 CONFIG_SATA_SIL24=y
 CONFIG_NETDEVICES=y
-CONFIG_DUMMY=y
 CONFIG_FSL_PQ_MDIO=y
 CONFIG_FSL_XGMAC_MDIO=y
 CONFIG_E1000E=y
@@ -95,7 +74,6 @@ CONFIG_VITESSE_PHY=y
 CONFIG_FIXED_PHY=y
 CONFIG_MDIO_BUS_MUX_GPIO=y
 CONFIG_MDIO_BUS_MUX_MMIOREG=y
-CONFIG_INPUT_FF_MEMLESS=m
 # CONFIG_INPUT_MOUSEDEV is not set
 # CONFIG_INPUT_KEYBOARD is not set
 # CONFIG_INPUT_MOUSE is not set
@@ -131,12 +109,10 @@ CONFIG_RTC_CLASS=y
 CONFIG_RTC_DRV_DS1307=y
 CONFIG_RTC_DRV_DS1374=y
 CONFIG_RTC_DRV_DS3232=y
-CONFIG_DMADEVICES=y
-CONFIG_FSL_DMA=y
 CONFIG_VIRT_DRIVERS=y
 CONFIG_FSL_HV_MANAGER=y
-CONFIG_CLK_QORIQ=y
 CONFIG_FSL_CORENET_CF=y
+CONFIG_CLK_QORIQ=y
 CONFIG_EXT2_FS=y
 CONFIG_EXT3_FS=y
 CONFIG_ISO9660_FS=m
@@ -150,8 +126,6 @@ CONFIG_PROC_KCORE=y
 CONFIG_TMPFS=y
 CONFIG_HUGETLBFS=y
 CONFIG_JFFS2_FS=y
-CONFIG_JFFS2_FS_DEBUG=1
-CONFIG_UBIFS_FS=y
 CONFIG_NFS_FS=y
 CONFIG_NFS_V4=y
 CONFIG_ROOT_NFS=y
@@ -160,10 +134,7 @@ CONFIG_NLS_CODEPAGE_437=y
 CONFIG_NLS_CODEPAGE_850=y
 CONFIG_NLS_ISO8859_1=y
 CONFIG_NLS_UTF8=m
-CONFIG_CRC_T10DIF=y
 CONFIG_DEBUG_INFO=y
-CONFIG_FRAME_WARN=1024
-CONFIG_DEBUG_FS=y
 CONFIG_MAGIC_SYSRQ=y
 CONFIG_DEBUG_SHIRQ=y
 CONFIG_DETECT_HUNG_TASK=y
diff --git a/arch/powerpc/configs/cpu24.config b/arch/powerpc/configs/cpu24.config
new file mode 100644
index 0000000..08d2f61
--- /dev/null
+++ b/arch/powerpc/configs/cpu24.config
@@ -0,0 +1 @@
+CONFIG_NR_CPUS=24
diff --git a/arch/powerpc/configs/cpu8.config b/arch/powerpc/configs/cpu8.config
new file mode 100644
index 0000000..8832f89
--- /dev/null
+++ b/arch/powerpc/configs/cpu8.config
@@ -0,0 +1 @@
+CONFIG_NR_CPUS=8
diff --git a/arch/powerpc/configs/dma.config b/arch/powerpc/configs/dma.config
new file mode 100644
index 0000000..f0e66b5
--- /dev/null
+++ b/arch/powerpc/configs/dma.config
@@ -0,0 +1,2 @@
+CONFIG_DMADEVICES=y
+CONFIG_FSL_DMA=y
diff --git a/arch/powerpc/configs/i2c.config b/arch/powerpc/configs/i2c.config
new file mode 100644
index 0000000..aafb657
--- /dev/null
+++ b/arch/powerpc/configs/i2c.config
@@ -0,0 +1 @@
+CONFIG_I2C=y
diff --git a/arch/powerpc/configs/kvm_e500.config b/arch/powerpc/configs/kvm_e500.config
new file mode 100644
index 0000000..615b0a0
--- /dev/null
+++ b/arch/powerpc/configs/kvm_e500.config
@@ -0,0 +1,2 @@
+CONFIG_KVM_GUEST=y
+CONFIG_PPC_QEMU_E500=y
diff --git a/arch/powerpc/configs/math_emulation.config b/arch/powerpc/configs/math_emulation.config
new file mode 100644
index 0000000..fa2fb66
--- /dev/null
+++ b/arch/powerpc/configs/math_emulation.config
@@ -0,0 +1,2 @@
+CONFIG_MATH_EMULATION=y
+CONFIG_MATH_EMULATION_HW_UNIMPLEMENTED=y
diff --git a/arch/powerpc/configs/mpc85xx_smp_defconfig b/arch/powerpc/configs/mpc85xx_basic_defconfig
similarity index 97%
rename from arch/powerpc/configs/mpc85xx_smp_defconfig
rename to arch/powerpc/configs/mpc85xx_basic_defconfig
index b6c7111..8cb47f4 100644
--- a/arch/powerpc/configs/mpc85xx_smp_defconfig
+++ b/arch/powerpc/configs/mpc85xx_basic_defconfig
@@ -1,7 +1,4 @@
-CONFIG_PPC_85xx=y
 CONFIG_PHYS_64BIT=y
-CONFIG_SMP=y
-CONFIG_NR_CPUS=8
 CONFIG_SYSVIPC=y
 CONFIG_POSIX_MQUEUE=y
 CONFIG_AUDIT=y
@@ -128,14 +125,11 @@ CONFIG_INPUT_FF_MEMLESS=m
 CONFIG_SERIO_LIBPS2=y
 CONFIG_SERIAL_8250=y
 CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=2
-CONFIG_SERIAL_8250_RUNTIME_UARTS=2
 CONFIG_SERIAL_8250_MANY_PORTS=y
 CONFIG_SERIAL_8250_DETECT_IRQ=y
 CONFIG_SERIAL_8250_RSA=y
 CONFIG_SERIAL_QE=m
 CONFIG_NVRAM=y
-CONFIG_I2C=y
 CONFIG_I2C_CHARDEV=y
 CONFIG_I2C_CPM=m
 CONFIG_I2C_MPC=y
diff --git a/arch/powerpc/configs/mpc85xx_defconfig b/arch/powerpc/configs/mpc85xx_defconfig
deleted file mode 100644
index 6ecf7bd..0000000
--- a/arch/powerpc/configs/mpc85xx_defconfig
+++ /dev/null
@@ -1,252 +0,0 @@
-CONFIG_PPC_85xx=y
-CONFIG_PHYS_64BIT=y
-CONFIG_SYSVIPC=y
-CONFIG_POSIX_MQUEUE=y
-CONFIG_AUDIT=y
-CONFIG_IRQ_DOMAIN_DEBUG=y
-CONFIG_NO_HZ=y
-CONFIG_HIGH_RES_TIMERS=y
-CONFIG_BSD_PROCESS_ACCT=y
-CONFIG_IKCONFIG=y
-CONFIG_IKCONFIG_PROC=y
-CONFIG_LOG_BUF_SHIFT=14
-CONFIG_BLK_DEV_INITRD=y
-CONFIG_EXPERT=y
-CONFIG_KALLSYMS_ALL=y
-CONFIG_MODULES=y
-CONFIG_MODULE_UNLOAD=y
-CONFIG_MODULE_FORCE_UNLOAD=y
-CONFIG_MODVERSIONS=y
-# CONFIG_BLK_DEV_BSG is not set
-CONFIG_PARTITION_ADVANCED=y
-CONFIG_MAC_PARTITION=y
-CONFIG_C293_PCIE=y
-CONFIG_MPC8540_ADS=y
-CONFIG_MPC8560_ADS=y
-CONFIG_MPC85xx_CDS=y
-CONFIG_MPC85xx_MDS=y
-CONFIG_MPC8536_DS=y
-CONFIG_MPC85xx_DS=y
-CONFIG_MPC85xx_RDB=y
-CONFIG_P1010_RDB=y
-CONFIG_P1022_DS=y
-CONFIG_P1022_RDK=y
-CONFIG_P1023_RDB=y
-CONFIG_SOCRATES=y
-CONFIG_KSI8560=y
-CONFIG_XES_MPC85xx=y
-CONFIG_STX_GP3=y
-CONFIG_TQM8540=y
-CONFIG_TQM8541=y
-CONFIG_TQM8548=y
-CONFIG_TQM8555=y
-CONFIG_TQM8560=y
-CONFIG_SBC8548=y
-CONFIG_MVME2500=y
-CONFIG_QUICC_ENGINE=y
-CONFIG_QE_GPIO=y
-CONFIG_HIGHMEM=y
-CONFIG_BINFMT_MISC=m
-CONFIG_MATH_EMULATION=y
-CONFIG_FORCE_MAX_ZONEORDER=12
-CONFIG_PCI=y
-CONFIG_PCIEPORTBUS=y
-# CONFIG_PCIEASPM is not set
-CONFIG_PCI_MSI=y
-CONFIG_RAPIDIO=y
-CONFIG_NET=y
-CONFIG_PACKET=y
-CONFIG_UNIX=y
-CONFIG_XFRM_USER=y
-CONFIG_NET_KEY=y
-CONFIG_INET=y
-CONFIG_IP_MULTICAST=y
-CONFIG_IP_ADVANCED_ROUTER=y
-CONFIG_IP_MULTIPLE_TABLES=y
-CONFIG_IP_ROUTE_MULTIPATH=y
-CONFIG_IP_ROUTE_VERBOSE=y
-CONFIG_IP_PNP=y
-CONFIG_IP_PNP_DHCP=y
-CONFIG_IP_PNP_BOOTP=y
-CONFIG_IP_PNP_RARP=y
-CONFIG_NET_IPIP=y
-CONFIG_IP_MROUTE=y
-CONFIG_IP_PIMSM_V1=y
-CONFIG_IP_PIMSM_V2=y
-CONFIG_INET_ESP=y
-# CONFIG_INET_XFRM_MODE_BEET is not set
-# CONFIG_INET_LRO is not set
-CONFIG_IPV6=y
-CONFIG_IP_SCTP=m
-CONFIG_UEVENT_HELPER_PATH="/sbin/hotplug"
-CONFIG_DEVTMPFS=y
-CONFIG_DEVTMPFS_MOUNT=y
-CONFIG_MTD=y
-CONFIG_MTD_CMDLINE_PARTS=y
-CONFIG_MTD_BLOCK=y
-CONFIG_FTL=y
-CONFIG_MTD_CFI=y
-CONFIG_MTD_CFI_INTELEXT=y
-CONFIG_MTD_CFI_AMDSTD=y
-CONFIG_MTD_PHYSMAP=y
-CONFIG_MTD_PHYSMAP_OF=y
-CONFIG_MTD_PLATRAM=y
-CONFIG_MTD_M25P80=y
-CONFIG_MTD_NAND=y
-CONFIG_MTD_NAND_FSL_ELBC=y
-CONFIG_MTD_NAND_FSL_IFC=y
-CONFIG_MTD_SPI_NOR=y
-CONFIG_MTD_UBI=y
-CONFIG_BLK_DEV_LOOP=y
-CONFIG_BLK_DEV_NBD=y
-CONFIG_BLK_DEV_RAM=y
-CONFIG_BLK_DEV_RAM_SIZE=131072
-CONFIG_EEPROM_AT24=y
-CONFIG_EEPROM_LEGACY=y
-CONFIG_BLK_DEV_SD=y
-CONFIG_CHR_DEV_ST=y
-CONFIG_BLK_DEV_SR=y
-CONFIG_CHR_DEV_SG=y
-CONFIG_SCSI_LOGGING=y
-CONFIG_ATA=y
-CONFIG_SATA_AHCI=y
-CONFIG_SATA_FSL=y
-CONFIG_SATA_SIL24=y
-CONFIG_PATA_ALI=y
-CONFIG_PATA_VIA=y
-CONFIG_NETDEVICES=y
-CONFIG_DUMMY=y
-CONFIG_FS_ENET=y
-CONFIG_UCC_GETH=y
-CONFIG_GIANFAR=y
-CONFIG_E1000=y
-CONFIG_E1000E=y
-CONFIG_IGB=y
-CONFIG_AT803X_PHY=y
-CONFIG_MARVELL_PHY=y
-CONFIG_DAVICOM_PHY=y
-CONFIG_CICADA_PHY=y
-CONFIG_VITESSE_PHY=y
-CONFIG_BROADCOM_PHY=y
-CONFIG_FIXED_PHY=y
-CONFIG_INPUT_FF_MEMLESS=m
-# CONFIG_INPUT_MOUSEDEV is not set
-# CONFIG_INPUT_KEYBOARD is not set
-# CONFIG_INPUT_MOUSE is not set
-CONFIG_SERIO_LIBPS2=y
-CONFIG_SERIAL_8250=y
-CONFIG_SERIAL_8250_CONSOLE=y
-CONFIG_SERIAL_8250_NR_UARTS=6
-CONFIG_SERIAL_8250_RUNTIME_UARTS=6
-CONFIG_SERIAL_8250_MANY_PORTS=y
-CONFIG_SERIAL_8250_DETECT_IRQ=y
-CONFIG_SERIAL_8250_RSA=y
-CONFIG_SERIAL_QE=m
-CONFIG_NVRAM=y
-CONFIG_I2C_CHARDEV=y
-CONFIG_I2C_CPM=m
-CONFIG_I2C_MPC=y
-CONFIG_SPI=y
-CONFIG_SPI_FSL_SPI=y
-CONFIG_SPI_FSL_ESPI=y
-CONFIG_GPIO_MPC8XXX=y
-CONFIG_SENSORS_LM90=y
-CONFIG_FB=y
-CONFIG_FB_FSL_DIU=y
-# CONFIG_VGA_CONSOLE is not set
-CONFIG_FRAMEBUFFER_CONSOLE=y
-CONFIG_SOUND=y
-CONFIG_SND=y
-# CONFIG_SND_SUPPORT_OLD_API is not set
-# CONFIG_SND_DRIVERS is not set
-CONFIG_SND_INTEL8X0=y
-# CONFIG_SND_PPC is not set
-# CONFIG_SND_USB is not set
-CONFIG_SND_SOC=y
-CONFIG_SND_POWERPC_SOC=y
-CONFIG_HID_A4TECH=y
-CONFIG_HID_APPLE=y
-CONFIG_HID_BELKIN=y
-CONFIG_HID_CHERRY=y
-CONFIG_HID_CHICONY=y
-CONFIG_HID_CYPRESS=y
-CONFIG_HID_EZKEY=y
-CONFIG_HID_GYRATION=y
-CONFIG_HID_LOGITECH=y
-CONFIG_HID_MICROSOFT=y
-CONFIG_HID_MONTEREY=y
-CONFIG_HID_PANTHERLORD=y
-CONFIG_HID_PETALYNX=y
-CONFIG_HID_SAMSUNG=y
-CONFIG_HID_SUNPLUS=y
-CONFIG_USB=y
-CONFIG_USB_MON=y
-CONFIG_USB_EHCI_HCD=y
-CONFIG_USB_EHCI_FSL=y
-CONFIG_USB_OHCI_HCD=y
-CONFIG_USB_OHCI_HCD_PPC_OF_BE=y
-CONFIG_USB_OHCI_HCD_PPC_OF_LE=y
-CONFIG_USB_STORAGE=y
-CONFIG_MMC=y
-CONFIG_MMC_SDHCI=y
-CONFIG_MMC_SDHCI_PLTFM=y
-CONFIG_MMC_SDHCI_OF_ESDHC=y
-CONFIG_EDAC=y
-CONFIG_EDAC_MM_EDAC=y
-CONFIG_EDAC_MPC85XX=y
-CONFIG_RTC_CLASS=y
-CONFIG_RTC_DRV_DS1307=y
-CONFIG_RTC_DRV_DS1374=y
-CONFIG_RTC_DRV_DS3232=y
-CONFIG_RTC_DRV_CMOS=y
-CONFIG_DMADEVICES=y
-CONFIG_FSL_DMA=y
-CONFIG_EXT2_FS=y
-CONFIG_EXT3_FS=y
-# CONFIG_EXT3_DEFAULTS_TO_ORDERED is not set
-CONFIG_ISO9660_FS=m
-CONFIG_JOLIET=y
-CONFIG_ZISOFS=y
-CONFIG_UDF_FS=m
-CONFIG_MSDOS_FS=m
-CONFIG_VFAT_FS=y
-CONFIG_NTFS_FS=y
-CONFIG_PROC_KCORE=y
-CONFIG_TMPFS=y
-CONFIG_HUGETLBFS=y
-CONFIG_ADFS_FS=m
-CONFIG_AFFS_FS=m
-CONFIG_HFS_FS=m
-CONFIG_HFSPLUS_FS=m
-CONFIG_BEFS_FS=m
-CONFIG_BFS_FS=m
-CONFIG_EFS_FS=m
-CONFIG_JFFS2_FS=y
-CONFIG_JFFS2_FS_DEBUG=1
-CONFIG_UBIFS_FS=y
-CONFIG_CRAMFS=y
-CONFIG_VXFS_FS=m
-CONFIG_HPFS_FS=m
-CONFIG_QNX4FS_FS=m
-CONFIG_SYSV_FS=m
-CONFIG_UFS_FS=m
-CONFIG_NFS_FS=y
-CONFIG_NFS_V4=y
-CONFIG_ROOT_NFS=y
-CONFIG_NFSD=y
-CONFIG_NLS_CODEPAGE_437=y
-CONFIG_NLS_CODEPAGE_850=y
-CONFIG_NLS_ISO8859_1=y
-CONFIG_CRC_T10DIF=y
-CONFIG_FONTS=y
-CONFIG_FONT_8x8=y
-CONFIG_FONT_8x16=y
-CONFIG_DEBUG_INFO=y
-CONFIG_DEBUG_FS=y
-CONFIG_DETECT_HUNG_TASK=y
-CONFIG_CRYPTO_PCBC=m
-CONFIG_CRYPTO_SHA256=y
-CONFIG_CRYPTO_SHA512=y
-# CONFIG_CRYPTO_ANSI_CPRNG is not set
-CONFIG_CRYPTO_DEV_FSL_CAAM=y
-CONFIG_CRYPTO_DEV_TALITOS=y
diff --git a/arch/powerpc/configs/mpc85xx_misc.config b/arch/powerpc/configs/mpc85xx_misc.config
new file mode 100644
index 0000000..3f554d5
--- /dev/null
+++ b/arch/powerpc/configs/mpc85xx_misc.config
@@ -0,0 +1,11 @@
+CONFIG_BROADCOM_PHY=y
+CONFIG_E1000=y
+CONFIG_EDAC_MPC85XX=y
+CONFIG_IGB=y
+CONFIG_MTD_M25P80=y
+CONFIG_MTD_PHYSMAP=y
+CONFIG_MTD_PLATRAM=y
+CONFIG_MVME2500=y
+CONFIG_PATA_VIA=y
+CONFIG_PCIEASPM=n
+CONFIG_PCIEPORTBUS=y
diff --git a/arch/powerpc/configs/smp.config b/arch/powerpc/configs/smp.config
new file mode 100644
index 0000000..1cbf7ec
--- /dev/null
+++ b/arch/powerpc/configs/smp.config
@@ -0,0 +1 @@
+CONFIG_SMP=y
diff --git a/arch/powerpc/configs/uart2.config b/arch/powerpc/configs/uart2.config
new file mode 100644
index 0000000..ed35fa5
--- /dev/null
+++ b/arch/powerpc/configs/uart2.config
@@ -0,0 +1,2 @@
+CONFIG_SERIAL_8250_NR_UARTS=2
+CONFIG_SERIAL_8250_RUNTIME_UARTS=2
diff --git a/arch/powerpc/configs/uart6.config b/arch/powerpc/configs/uart6.config
new file mode 100644
index 0000000..c7150c9
--- /dev/null
+++ b/arch/powerpc/configs/uart6.config
@@ -0,0 +1,2 @@
+CONFIG_SERIAL_8250_NR_UARTS=6
+CONFIG_SERIAL_8250_RUNTIME_UARTS=6
