diff --git a/include/target.mk b/include/target.mk
index c27e9d3354..c3b4c52459 100644
--- a/include/target.mk
+++ b/include/target.mk
@@ -229,6 +229,12 @@ ifeq ($(DUMP),1)
     CPU_CFLAGS_vfp = -mfpu=vfp -mfloat-abi=softfp
     CPU_CFLAGS_vfp3 = -mfpu=vfp3-d16 -mfloat-abi=softfp
   endif
+  ifeq ($(ARCH),powerpc)
+    CPU_CFLAGS_603e:=-mcpu=603e
+    CPU_CFLAGS_8540:=-mcpu=8540
+    CPU_CFLAGS_405:=-mcpu=405
+    CPU_CFLAGS_440:=-mcpu=440
+  endif
   ifeq ($(ARCH),sparc)
     CPU_TYPE = sparc
     CPU_CFLAGS_ultrasparc = -mcpu=ultrasparc
diff --git a/target/linux/mpc52xx/Makefile b/target/linux/mpc52xx/Makefile
index 7b07058944..a965773078 100644
--- a/target/linux/mpc52xx/Makefile
+++ b/target/linux/mpc52xx/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 ARCH:=powerpc
 BOARD:=mpc52xx
 BOARDNAME:=Freescale MPC52xx
-CFLAGS:=-Os -pipe -mcpu=603e
+CPU_TYPE:=603e
 FEATURES:=targz ext4
 
 LINUX_VERSION:=3.8.13
diff --git a/target/linux/mpc83xx/Makefile b/target/linux/mpc83xx/Makefile
index 1bb0d34bbc..4c25049ee5 100644
--- a/target/linux/mpc83xx/Makefile
+++ b/target/linux/mpc83xx/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 ARCH:=powerpc
 BOARD:=mpc83xx
 BOARDNAME:=Freescale MPC83xx
-CFLAGS:=-Os -pipe -mcpu=603e
+CPU_TYPE:=603e
 FEATURES:=squashfs targz
 MAINTAINER:=Imre Kaloz <kaloz@openwrt.org>
 
diff --git a/target/linux/mpc85xx/Makefile b/target/linux/mpc85xx/Makefile
index c8ae94daf0..278cdee345 100644
--- a/target/linux/mpc85xx/Makefile
+++ b/target/linux/mpc85xx/Makefile
@@ -9,7 +9,7 @@ include $(TOPDIR)/rules.mk
 ARCH:=powerpc
 BOARD:=mpc85xx
 BOARDNAME:=Freescale MPC85xx
-CFLAGS:=-Os -pipe -mcpu=8540
+CPU_TYPE:=8540
 FEATURES:=spe_fpu squashfs
 MAINTAINER:=Imre Kaloz <kaloz@openwrt.org>
 SUBTARGETS=generic p1020
diff --git a/target/linux/ppc40x/Makefile b/target/linux/ppc40x/Makefile
index 29982df190..947c8ebb22 100644
--- a/target/linux/ppc40x/Makefile
+++ b/target/linux/ppc40x/Makefile
@@ -10,7 +10,7 @@ ARCH:=powerpc
 BOARD:=ppc40x
 BOARDNAME:=AMCC/IBM PPC40x
 FEATURES:=squashfs
-CFLAGS:=-Os -pipe -mcpu=405
+CPU_TYPE:=405
 MAINTAINER:=Imre Kaloz <kaloz@openwrt.org>
 
 LINUX_VERSION:=3.10.12
diff --git a/target/linux/ppc44x/Makefile b/target/linux/ppc44x/Makefile
index 661eebc4cb..6c48c01944 100644
--- a/target/linux/ppc44x/Makefile
+++ b/target/linux/ppc44x/Makefile
@@ -10,7 +10,7 @@ ARCH:=powerpc
 BOARD:=ppc44x
 BOARDNAME:=AMCC/IBM PPC44x
 FEATURES:=squashfs broken
-CFLAGS:=-Os -pipe -mcpu=440
+CPU_TYPE:=440
 MAINTAINER:=Imre Kaloz <kaloz@openwrt.org>
 
 LINUX_VERSION:=3.10.12