board: amcore: update to use dm serial driver

Update amcore board to use dm serial driver.
Signed-off-by: NAngelo Dureghello <angelo@sysam.it>
---
Changes for v2:
- None

board/sysam/amcore/amcore.c

 /*
  * Board functions for Sysam AMCORE (MCF5307 based) board
  *
- * (C) Copyright 2015  Angelo Dureghello <angelo@sysam.it>
+ * (C) Copyright 2016  Angelo Dureghello <angelo@sysam.it>
  *
  * SPDX-License-Identifier:     GPL-2.0+
  *
@@ -11,6 +11,8 @@
 #include <common.h>
 #include <asm/immap.h>
 #include <asm/io.h>
+#include <dm.h>
+#include <dm/platform_data/serial_coldfire.h>
 
 void init_lcd(void)
 {
@@ -99,3 +101,14 @@ phys_size_t initdram(int board_type)
 
 	return get_ram_size(CONFIG_SYS_SDRAM_BASE, CONFIG_SYS_SDRAM_SIZE);
 }
+
+static struct coldfire_serial_platdata mcf5307_serial_plat = {
+	.base = CONFIG_SYS_UART_BASE,
+	.port = 0,
+	.baudrate = CONFIG_BAUDRATE,
+};
+
+U_BOOT_DEVICE(coldfire_serial) = {
+	.name = "serial_coldfire",
+	.platdata = &mcf5307_serial_plat,
+};

configs/amcore_defconfig

@@ -3,6 +3,10 @@ CONFIG_TARGET_AMCORE=y
 CONFIG_SYS_TEXT_BASE=0xffc00000
 CONFIG_BOOTDELAY=1
 CONFIG_SYS_PROMPT="amcore $ "
+CONFIG_DM=y
+CONFIG_DM_SERIAL=y
+CONFIG_SYS_MALLOC_F=y
+CONFIG_SYS_MALLOC_F_LEN=0x800
 # CONFIG_CMD_BOOTD is not set
 # CONFIG_CMD_XIMG is not set
 CONFIG_LOOPW=y