help
If you want to build SPL as well as the normal image, say Y.
+config SPL_BOARD_INIT
+ depends on SPL
+ bool "Call board-specific initialization in SPL"
+ help
+ If this option is enabled, U-Boot will call the function
+ spl_board_init() from board_init_r(). This function should be
+ provided by the board.
+
config SPL_RAW_IMAGE_SUPPORT
bool "Support SPL loading and booting of RAW images"
depends on SPL