+CONFIG_TARGET_MX23EVK=y
+CONFIG_SPL_SERIAL=y
+CONFIG_SPL=y
+CONFIG_SYS_LOAD_ADDR=0x42000000
+CONFIG_USE_BOOTCOMMAND=y
+CONFIG_BOOTCOMMAND="mmc dev ${mmcdev}; if mmc rescan; then if run loadbootscript; then run bootscript; else if run loadimage; then run mmcboot; else echo ERR: Fail to boot from MMC; fi; fi; else exit; fi"