stm32f7: enable fsmc

This uses the existing f4 code as a new shared common base code.

lib/stm32/common/fmc_common_f47.c

@@ -1,3 +1,11 @@
+/** @addtogroup fmc_file FMC peripheral API
+@ingroup peripheral_apis
+
+@author @htmlonly © @endhtmlonly 2012 Ken Sarkies ksarkies@internode.on.net
+
+This library supports the Flexible Memory Controller in the STM32F4xx and
+STM32F7xx series of ARM Cortex Microcontrollers by ST Microelectronics.
+*/
 /*
  *
  * This file is part of the libopencm3 project.
@@ -21,6 +29,8 @@
 #include <stdint.h>
 #include <libopencm3/stm32/fsmc.h>
 
+/**@{*/
+
 /*
  * Install various timing values into the correct place in the
  * SDRAM Timing Control Register format.
@@ -97,3 +107,5 @@ sdram_command(enum fmc_sdram_bank bank,
 	/* Send the next command */
 	FMC_SDCMR = tmp_reg;
 }
+
+/**@}*/

lib/stm32/f4/Makefile

@@ -49,7 +49,7 @@ OBJS		+= dma_common_f24.o
 OBJS		+= exti_common_all.o 
 OBJS		+= flash.o flash_common_all.o flash_common_f.o flash_common_f24.o
 OBJS		+= flash_common_idcache.o
-OBJS		+= fmc.o
+OBJS		+= fmc_common_f47.o
 OBJS		+= gpio_common_all.o gpio_common_f0234.o gpio.o
 OBJS		+= hash_common_f24.o
 OBJS		+= i2c_common_v1.o

lib/stm32/f7/Makefile

@@ -50,6 +50,7 @@ OBJS		+= desig.o
 OBJS		+= dma_common_f24.o
 OBJS		+= exti_common_all.o
 OBJS		+= flash_common_all.o flash_common_f.o flash_common_f24.o flash.o
+OBJS		+= fmc_common_f47.o
 OBJS		+= gpio.o gpio_common_all.o gpio_common_f0234.o
 OBJS		+= i2c_common_v2.o
 OBJS		+= iwdg_common_all.o