dm: imx: Move cm_fx6 to use driver model for serial and GPIO

Now that serial and GPIO are available for iMX.6, move cm_fx6 over as an
example.

Acked-by: Igor Grinberg <grinberg@compulab.co.il>
Signed-off-by: Simon Glass <sjg@chromium.org>
Acked-by: Nikita Kiryanov <nikita@compulab.co.il>

board/compulab/cm_fx6/cm_fx6.c

@@ -9,11 +9,13 @@
  */
 
 #include <common.h>
+#include <dm.h>
 #include <fsl_esdhc.h>
 #include <miiphy.h>
 #include <netdev.h>
 #include <fdt_support.h>
 #include <sata.h>
+#include <serial_mxc.h>
 #include <asm/arch/crm_regs.h>
 #include <asm/arch/sys_proto.h>
 #include <asm/arch/iomux.h>
@@ -564,3 +566,11 @@ u32 get_board_rev(void)
 	return cl_eeprom_get_board_rev();
 }
 
+static struct mxc_serial_platdata cm_fx6_mxc_serial_plat = {
+	.reg = (struct mxc_uart *)UART4_BASE,
+};
+
+U_BOOT_DEVICE(cm_fx6_serial) = {
+	.name	= "serial_mxc",
+	.platdata = &cm_fx6_mxc_serial_plat,
+};

include/configs/cm_fx6.h

@@ -21,6 +21,17 @@
 #define CONFIG_MACH_TYPE		4273
 #define CONFIG_SYS_HZ			1000
 
+#ifndef CONFIG_SPL_BUILD
+#define CONFIG_DM
+#define CONFIG_CMD_DM
+
+#define CONFIG_DM_GPIO
+#define CONFIG_CMD_GPIO
+
+#define CONFIG_DM_SERIAL
+#define CONFIG_SYS_MALLOC_F_LEN		(1 << 10)
+#endif
+
 /* Display information on boot */
 #define CONFIG_DISPLAY_CPUINFO
 #define CONFIG_DISPLAY_BOARDINFO