arm: mx6: cm-fx6: define fallback boot devices for spl

Use spl alternate boot device feature to define fallback to
the main boot device as it is defined by hardware.

Signed-off-by: Nikita Kiryanov <nikita@compulab.co.il>
Cc: Igor Grinberg <grinberg@compulab.co.il>
Cc: Stefano Babic <sbabic@denx.de>
Cc: Tom Rini <trini@konsulko.com>
Reviewed-by: Tom Rini <trini@konsulko.com>
Reviewed-by: Stefano Babic <sbabic@denx.de>

board/compulab/cm_fx6/spl.c

@@ -337,16 +337,17 @@ void board_init_f(ulong dummy)
 	board_init_r(NULL, 0);
 }
 
-void spl_board_init(void)
+void board_boot_order(u32 *spl_boot_list)
 {
-	u32 boot_device = spl_boot_device();
-
-	if (boot_device == BOOT_DEVICE_SPI)
-		puts("Booting from SPI flash\n");
-	else if (boot_device == BOOT_DEVICE_MMC1)
-		puts("Booting from MMC\n");
-	else
-		puts("Unknown boot device\n");
+	spl_boot_list[0] = spl_boot_device();
+	switch (spl_boot_list[0]) {
+	case BOOT_DEVICE_SPI:
+		spl_boot_list[1] = BOOT_DEVICE_MMC1;
+		break;
+	case BOOT_DEVICE_MMC1:
+		spl_boot_list[1] = BOOT_DEVICE_SPI;
+		break;
+	}
 }
 
 #ifdef CONFIG_SPL_MMC_SUPPORT

include/configs/cm_fx6.h

@@ -230,7 +230,6 @@
 
 /* SPL */
 #include "imx6_spl.h"
-#define CONFIG_SPL_BOARD_INIT
 #define CONFIG_SPL_MMC_SUPPORT
 #define CONFIG_SYS_MMCSD_RAW_MODE_U_BOOT_SECTOR	0x80 /* offset 64 kb */
 #define CONFIG_SYS_MONITOR_LEN	(CONFIG_SYS_U_BOOT_MAX_SIZE_SECTORS / 2 * 1024)