"if test $board_name = SABRESD && test $board_rev = MX6Q; then " \
"setenv fdt_file imx6q-sabresd.dtb; fi; " \
"if test $board_name = SABRESD && test $board_rev = MX6DL; then " \
"if test $board_name = SABRESD && test $board_rev = MX6Q; then " \
"setenv fdt_file imx6q-sabresd.dtb; fi; " \
"if test $board_name = SABRESD && test $board_rev = MX6DL; then " \