setenv bootargs mem=384M@0M mem=512M@512M nvmem=128M@384M vmalloc=248M video=tegrafb console=ttyS0,115200n8 ro root=LABEL=rootfs nohdparm rootwait earlyprintk
ext2load mmc 0:1 4080000 uImage-tegra
ext2load mmc 0:1 4400000 uInitrd-tegra
bootm 4080000 4400000
