Move systick to stm32 common.

lib/stm32_common/systick.c

@@ -17,7 +17,7 @@
  * along with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#include <libopencm3/stm32/f1/systick.h>
+#include <libopencm3/stm32/systick.h>
 
 void systick_set_reload(u32 value)
 {

lib/stm32f1/Makefile

@@ -33,7 +33,7 @@ OBJS		= vector.o rcc.o gpio.o usart.o adc.o spi.o flash.o nvic.o \
 		  usb_f103.o usb.o usb_control.o usb_standard.o can.o \
 		  timer.o usb_f107.o
 
-VPATH += ../usb
+VPATH += ../usb:../stm32_common
 
 # Be silent per default, but 'make V=1' will show all compiler calls.
 ifneq ($(V),1)

lib/stm32f2/Makefile

@@ -28,9 +28,10 @@ CFLAGS		= -Os -g -Wall -Wextra -I../../include -fno-common \
 		  -ffunction-sections -fdata-sections -MD -DSTM32F2
 # ARFLAGS	= rcsv
 ARFLAGS		= rcs
-OBJS		= vector.o gpio.o
+OBJS		= vector.o gpio.o systick.o
 
 #VPATH += ../usb
+VPATH += ../stm32_common
 
 # Be silent per default, but 'make V=1' will show all compiler calls.
 ifneq ($(V),1)