diff --git a/Makefile b/Makefile
index b2a31c3a..994e8a4a 100644
--- a/Makefile
+++ b/Makefile
@@ -26,7 +26,7 @@ SHAREDIR	= $(DESTDIR)/$(PREFIX)/share/libopencm3/scripts
 INSTALL		= install
 
 SRCLIBDIR = $(shell pwd)/lib
-TARGETS = stm32/f1 stm32/f2 stm32/f4 lpc13xx lpc17xx lpc43xx lm3s  efm32/efm32tg
+TARGETS = stm32/f1 stm32/f2 stm32/f4 lpc13xx lpc17xx lpc43xx lm3s  efm32/efm32tg efm32/efm32g efm32/efm32lg efm32/efm32gg
 
 # Be silent per default, but 'make V=1' will show all compiler calls.
 ifneq ($(V),1)
diff --git a/lib/efm32/efm32g/Makefile b/lib/efm32/efm32g/Makefile
new file mode 100644
index 00000000..923be478
--- /dev/null
+++ b/lib/efm32/efm32g/Makefile
@@ -0,0 +1,38 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2012 chrysn <chrysn@fsfe.org>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+LIBNAME		= libopencm3_efm32g
+FAMILY		= EFM32G
+
+PREFIX		?= arm-none-eabi
+#PREFIX		?= arm-elf
+CC		= $(PREFIX)-gcc
+AR		= $(PREFIX)-ar
+CFLAGS		= -Os -g -Wall -Wextra -I../../../include -fno-common \
+		  -mcpu=cortex-m3 -mthumb -Wstrict-prototypes \
+		  -ffunction-sections -fdata-sections -MD -D$(FAMILY)
+# ARFLAGS	= rcsv
+ARFLAGS		= rcs
+OBJS		= vector.o
+
+VPATH += ../:../../cm3
+
+include ../../Makefile.include
+
diff --git a/lib/efm32/efm32gg/Makefile b/lib/efm32/efm32gg/Makefile
new file mode 100644
index 00000000..0d9d0bdc
--- /dev/null
+++ b/lib/efm32/efm32gg/Makefile
@@ -0,0 +1,38 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2012 chrysn <chrysn@fsfe.org>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+LIBNAME		= libopencm3_efm32gg
+FAMILY		= EFM32GG
+
+PREFIX		?= arm-none-eabi
+#PREFIX		?= arm-elf
+CC		= $(PREFIX)-gcc
+AR		= $(PREFIX)-ar
+CFLAGS		= -Os -g -Wall -Wextra -I../../../include -fno-common \
+		  -mcpu=cortex-m3 -mthumb -Wstrict-prototypes \
+		  -ffunction-sections -fdata-sections -MD -D$(FAMILY)
+# ARFLAGS	= rcsv
+ARFLAGS		= rcs
+OBJS		= vector.o
+
+VPATH += ../:../../cm3
+
+include ../../Makefile.include
+
diff --git a/lib/efm32/efm32lg/Makefile b/lib/efm32/efm32lg/Makefile
new file mode 100644
index 00000000..c76323e7
--- /dev/null
+++ b/lib/efm32/efm32lg/Makefile
@@ -0,0 +1,38 @@
+##
+## This file is part of the libopencm3 project.
+##
+## Copyright (C) 2009 Uwe Hermann <uwe@hermann-uwe.de>
+## Copyright (C) 2012 chrysn <chrysn@fsfe.org>
+##
+## This library is free software: you can redistribute it and/or modify
+## it under the terms of the GNU Lesser General Public License as published by
+## the Free Software Foundation, either version 3 of the License, or
+## (at your option) any later version.
+##
+## This library is distributed in the hope that it will be useful,
+## but WITHOUT ANY WARRANTY; without even the implied warranty of
+## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+## GNU Lesser General Public License for more details.
+##
+## You should have received a copy of the GNU Lesser General Public License
+## along with this library. If not, see <http://www.gnu.org/licenses/>.
+##
+
+LIBNAME		= libopencm3_efm32lg
+FAMILY		= EFM32LG
+
+PREFIX		?= arm-none-eabi
+#PREFIX		?= arm-elf
+CC		= $(PREFIX)-gcc
+AR		= $(PREFIX)-ar
+CFLAGS		= -Os -g -Wall -Wextra -I../../../include -fno-common \
+		  -mcpu=cortex-m3 -mthumb -Wstrict-prototypes \
+		  -ffunction-sections -fdata-sections -MD -D$(FAMILY)
+# ARFLAGS	= rcsv
+ARFLAGS		= rcs
+OBJS		= vector.o
+
+VPATH += ../:../../cm3
+
+include ../../Makefile.include
+