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U-Boot> 
U-Boot> printenv
arch=arm
baudrate=115200
board=rpi_2
board_name=3 Model B
board_rev=0x8
board_rev_scheme=1
board_revision=0xA02082
bootalt=run setup; run loadfdt; run loadkernel; bootz ${kernel_addr_r} - ${fdt_addr_r}
bootcmd=run setup; run loadkernel; bootz ${kernel_addr_r} - ${fdt_addr_r}
bootdelay=2
cpu=armv7
ethaddr=b8:27:eb:b4:fe:d4
fdt_addr_r=0x02000000
fdtaddr=33554432
fdtfile=bcm2710-rpi-3-b.dtb
filesize=4ae790
kernel=vmlinuz
kernel_addr_r=0x01000000
loadaddr=0x00200000
loadfdt=fatload mmc 0:1 ${fdt_addr_r} ${fdtfile}
loadkernel=ext4load mmc 0:2 ${kernel_addr_r} /boot/vmlinuz
pxefile_addr_r=0x00100000
ramdisk_addr_r=0x02100000
scriptaddr=0x00000000
serial#=000000006eb4fed4
setup=fdt addr ${fdt_addr_r}; fdt get value bootargs /chosen bootargs
soc=bcm283x
stderr=serial,lcd
stdin=serial,lcd
stdout=serial,lcd
usbethaddr=b8:27:eb:b4:fe:d4
vendor=raspberrypi

Environment size: 922/16380 bytes
U-Boot>