[STM32F0:RTC] Add initial support

include/libopencm3/stm32/f0/rtc.h

@@ -0,0 +1,37 @@
+/** @defgroup rtc_defines RTC Defines
+ *
+ * @brief <b>Defined Constants and Types for the STM32F0xx RTC</b>
+ *
+ * @ingroup STM32F0xx_defines
+ *
+ * @version 1.0.0
+ *
+ * @date 5 December 2012
+ *
+ * LGPL License Terms @ref lgpl_license
+ */
+
+/*
+ * This file is part of the libopencm3 project.
+ *
+ * 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/>.
+ */
+
+#ifndef LIBOPENCM3_RTC_H
+#define LIBOPENCM3_RTC_H
+
+#include <libopencm3/stm32/memorymap.h>
+#include <libopencm3/stm32/common/rtc_common_bcd.h>
+
+#endif

include/libopencm3/stm32/rtc.h

@@ -17,7 +17,9 @@
  * along with this library.  If not, see <http://www.gnu.org/licenses/>.
  */
 
-#if defined(STM32F1)
+#if defined(STM32F0)
+#       include <libopencm3/stm32/f0/rtc.h>
+#elif defined(STM32F1)
 #       include <libopencm3/stm32/f1/rtc.h>
 #elif defined(STM32F2)
 #       include <libopencm3/stm32/f2/rtc.h>

lib/stm32/f0/Makefile

@@ -36,7 +36,7 @@ ARFLAGS		= rcs
 OBJS		= flash.o rcc.o usart.o
 
 OBJS            += gpio_common_all.o gpio_common_f0234.o crc_common_all.o \
-                   pwr_common_all.o iwdg_common_all.o
+                   pwr_common_all.o iwdg_common_all.o rtc_common_bcd.o
 
 VPATH += ../../usb:../:../../cm3:../common