diff --git a/lib/dispatch/vector_chipset.c b/lib/dispatch/vector_chipset.c
index 2515664f..0ea09eac 100644
--- a/lib/dispatch/vector_chipset.c
+++ b/lib/dispatch/vector_chipset.c
@@ -12,7 +12,10 @@
 #	include "../lpc43xx/m4/vector_chipset.c"
 #elif defined(VF6XX)
 #	include "../vf6xx/vector_chipset.c"
-
+#elif defined(EFM32WG)
+#	include "../efm32/wg/vector_chipset.c"
+#elif defined(EZR32WG)
+#	include "../efm32/ezr32wg/vector_chipset.c"
 #else
 
 static void pre_main(void) {}
diff --git a/lib/efm32/ezr32wg/Makefile b/lib/efm32/ezr32wg/Makefile
index c30e5faf..0fafd501 100644
--- a/lib/efm32/ezr32wg/Makefile
+++ b/lib/efm32/ezr32wg/Makefile
@@ -23,6 +23,7 @@ LIBNAME		= libopencm3_ezr32wg
 SRCLIBDIR	?= ../..
 FAMILY		= EZR32WG
 
+FP_FLAGS        ?= -mfloat-abi=hard -mfpu=fpv4-sp-d16
 PREFIX		?= arm-none-eabi
 #PREFIX		?= arm-elf
 CC		= $(PREFIX)-gcc
diff --git a/lib/efm32/ezr32wg/vector_chipset.c b/lib/efm32/ezr32wg/vector_chipset.c
new file mode 100644
index 00000000..145be057
--- /dev/null
+++ b/lib/efm32/ezr32wg/vector_chipset.c
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
+ * Copyright (C) 2011 Fergus Noble <fergusnoble@gmail.com>
+ *
+ * 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/>.
+ */
+
+#include <libopencm3/cm3/scb.h>
+
+static void pre_main(void)
+{
+	/* Enable access to Floating-Point coprocessor. */
+	SCB_CPACR |= SCB_CPACR_FULL * (SCB_CPACR_CP10 | SCB_CPACR_CP11);
+}
diff --git a/lib/efm32/wg/Makefile b/lib/efm32/wg/Makefile
index 39a8377e..1fccbfdc 100644
--- a/lib/efm32/wg/Makefile
+++ b/lib/efm32/wg/Makefile
@@ -23,6 +23,7 @@ LIBNAME		= libopencm3_efm32wg
 SRCLIBDIR	?= ../..
 FAMILY		= EFM32WG
 
+FP_FLAGS        ?= -mfloat-abi=hard -mfpu=fpv4-sp-d16
 PREFIX		?= arm-none-eabi
 #PREFIX		?= arm-elf
 CC		= $(PREFIX)-gcc
diff --git a/lib/efm32/wg/vector_chipset.c b/lib/efm32/wg/vector_chipset.c
new file mode 100644
index 00000000..145be057
--- /dev/null
+++ b/lib/efm32/wg/vector_chipset.c
@@ -0,0 +1,27 @@
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * Copyright (C) 2010 Piotr Esden-Tempski <piotr@esden.net>
+ * Copyright (C) 2011 Fergus Noble <fergusnoble@gmail.com>
+ *
+ * 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/>.
+ */
+
+#include <libopencm3/cm3/scb.h>
+
+static void pre_main(void)
+{
+	/* Enable access to Floating-Point coprocessor. */
+	SCB_CPACR |= SCB_CPACR_FULL * (SCB_CPACR_CP10 | SCB_CPACR_CP11);
+}