"setenv fdtfile am57xx-beagle-x15-revb1.dtb; fi;" \
"if test $board_name = beagle_x15_revc; then " \
"setenv fdtfile am57xx-beagle-x15-revc.dtb; fi;" \
+ "if test $board_name = am5729_beagleboneai; then " \
+ "setenv fdtfile am5729-beagleboneai.dtb; fi;" \
"if test $board_name = am572x_idk; then " \
"setenv fdtfile am572x-idk.dtb; fi;" \
"if test $board_name = am574x_idk; then " \