mvebu: clearfog: use kconfig symbols to select boot device

This allows selection of the boot device at build time without source
code modification.

Signed-off-by: Baruch Siach <baruch@tkos.co.il>
Signed-off-by: Stefan Roese <sr@denx.de>

include/configs/clearfog.h

@@ -70,16 +70,6 @@
 	"initrd_high=0x10000000\0"
 
 /* SPL */
-/*
- * Select the boot device here
- *
- * Currently supported are:
- * SPL_BOOT_SPI_NOR_FLASH	- Booting via SPI NOR flash
- * SPL_BOOT_SDIO_MMC_CARD	- Booting via SDIO/MMC card (partition 1)
- */
-#define SPL_BOOT_SPI_NOR_FLASH		1
-#define SPL_BOOT_SDIO_MMC_CARD		2
-#define CONFIG_SPL_BOOT_DEVICE		SPL_BOOT_SDIO_MMC_CARD
 
 /* Defines for SPL */
 #define CONFIG_SPL_SIZE			(140 << 10)
@@ -96,13 +86,11 @@
 #define CONFIG_SPL_STACK		(0x40000000 + ((192 - 16) << 10))
 #define CONFIG_SPL_BOOTROM_SAVE		(CONFIG_SPL_STACK + 4)
 
-#if CONFIG_SPL_BOOT_DEVICE == SPL_BOOT_SPI_NOR_FLASH
+#if defined(CONFIG_MVEBU_SPL_BOOT_DEVICE_SPI)
 /* SPL related SPI defines */
 #define CONFIG_SYS_SPI_U_BOOT_OFFS	0x20000
 #define CONFIG_SYS_U_BOOT_OFFS		CONFIG_SYS_SPI_U_BOOT_OFFS
-#endif
-
-#if CONFIG_SPL_BOOT_DEVICE == SPL_BOOT_SDIO_MMC_CARD
+#elif defined(CONFIG_MVEBU_SPL_BOOT_DEVICE_MMC)
 /* SPL related MMC defines */
 #define CONFIG_SYS_MMC_U_BOOT_OFFS		(160 << 10)
 #define CONFIG_SYS_U_BOOT_OFFS			CONFIG_SYS_MMC_U_BOOT_OFFS