diff --git a/cpu/mcf5227x/config.mk b/cpu/mcf5227x/config.mk
index 8d60fd66bf08bbfbef35328f4e96a86fbf72abbe..8eab49dff9ad8e3467de17f0a2aa980de7728621 100644
--- a/cpu/mcf5227x/config.mk
+++ b/cpu/mcf5227x/config.mk
@@ -24,8 +24,8 @@
 #
 
 PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
-ifeq ($(findstring 4.2,$(shell $(CC) --version)),4.2)
-PLATFORM_CPPFLAGS += -mcpu=5208 -fPIC
+ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1)
+PLATFORM_CPPFLAGS += -mcpu=52277 -fPIC
 else
 PLATFORM_CPPFLAGS += -m5307 -fPIC
 endif
diff --git a/cpu/mcf523x/config.mk b/cpu/mcf523x/config.mk
index 93645a31e0a086c4c12d6d2d9ec8cd4b93f12f50..fc7945451f02c4f84f05d7e0af4e50e906ca192a 100644
--- a/cpu/mcf523x/config.mk
+++ b/cpu/mcf523x/config.mk
@@ -24,7 +24,7 @@
 #
 
 PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
-ifeq ($(findstring 4.2,$(shell $(CC) --version)),4.2)
+ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1)
 PLATFORM_CPPFLAGS += -mcpu=5235 -fPIC
 else
 PLATFORM_CPPFLAGS += -m5307 -fPIC
diff --git a/cpu/mcf52x2/config.mk b/cpu/mcf52x2/config.mk
index 650e340aee8deea980598f84c2022e332ed4791d..829273617b4f9b825a8b566ea446461f06a0f163 100644
--- a/cpu/mcf52x2/config.mk
+++ b/cpu/mcf52x2/config.mk
@@ -34,7 +34,7 @@ is5275:=$(shell grep CONFIG_M5275 $(TOPDIR)/include/$(cfg))
 is5282:=$(shell grep CONFIG_M5282 $(TOPDIR)/include/$(cfg))
 
 
-ifeq ($(findstring 4.2,$(shell $(CC) --version)),4.2)
+ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1)
 
 ifneq (,$(findstring CONFIG_M5249,$(is5249)))
 PLATFORM_CPPFLAGS += -mcpu=5249
diff --git a/cpu/mcf532x/config.mk b/cpu/mcf532x/config.mk
index 16a0bc3264b1031b394d0180fd5dac5c6a08b269..0cb90ac4e2e0ba3ffab2c547ebd74229fca599c4 100644
--- a/cpu/mcf532x/config.mk
+++ b/cpu/mcf532x/config.mk
@@ -24,7 +24,7 @@
 #
 
 PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
-ifeq ($(findstring 4.2,$(shell $(CC) --version)),4.2)
+ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1)
 PLATFORM_CPPFLAGS += -mcpu=5329 -fPIC
 else
 PLATFORM_CPPFLAGS += -m5307 -fPIC
diff --git a/cpu/mcf5445x/config.mk b/cpu/mcf5445x/config.mk
index 67efa07af75b80641f2c7ae0024682853d0a20ac..b0b49f7b2623a5b6235b71b8604ac6d202dca01a 100644
--- a/cpu/mcf5445x/config.mk
+++ b/cpu/mcf5445x/config.mk
@@ -24,7 +24,7 @@
 #
 
 PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
-ifeq ($(findstring 4.2,$(shell $(CC) --version)),4.2)
+ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1)
 PLATFORM_CPPFLAGS += -mcpu=54455 -fPIC
 else
 PLATFORM_CPPFLAGS += -m5407 -fPIC
diff --git a/cpu/mcf547x_8x/config.mk b/cpu/mcf547x_8x/config.mk
index 567b28192640bbf1b16823b36bb35b53a5363e52..83102abbbbef4a3709785942c903de62a1c71013 100644
--- a/cpu/mcf547x_8x/config.mk
+++ b/cpu/mcf547x_8x/config.mk
@@ -24,7 +24,7 @@
 #
 
 PLATFORM_RELFLAGS += -ffixed-d7 -msep-data
-ifeq ($(findstring 4.2,$(shell $(CC) --version)),4.2)
+ifneq ($(findstring 4.1,$(shell $(CC) --version)),4.1)
 PLATFORM_CPPFLAGS += -mcpu=5485 -fPIC
 else
 PLATFORM_CPPFLAGS += -m5407 -fPIC