FWIW, my uEnv.txt is below (I don't know how much of its formatting will
survive google groups).
uenvcmd=run findfdt; if test $board_name = A335BNLT; then setenv mmcdev 1;
mmc dev ${mmcdev}; if mmc rescan; then setenv mmc1 1; else setenv mmc1 0;
fi; fi; setenv mmcdev 0; mmc dev ${mmcdev}; if mmc rescan; then setenv mmc0
1; else setenv mmc0 0; fi; if run loadtftp; then run nfsboot; fi;
mmcroot=/dev/mmcblk0p2 rw
ipaddr=192.168.1.17
serverip=192.168.1.20
loadtftp=tftpboot ${loadaddr} public/zImage; tftpboot ${fdtaddr}
public/am335x-boneblack.dtb
nfsargs=setenv bootargs console=ttyO0,115200n8 ${optargs} root=/dev/nfs rw
nfsroot=192.168.1.20:/rootfs,vers=4 ip=dhcp
autooff=setenv autoload no
nfsboot=echo booting via TFTP and NFS ...; run autooff; run nfsargs; bootz
${loadaddr} - ${fdtaddr}
loadfdt=ext4load mmc ${mmcdev}:2 ${fdtaddr} /boot/dtbs/${fdtfile}
loaduimage=if ext4load mmc 0:2 ${loadaddr} /boot/zImage; then setenv mmcdev
0; else setenv mmcdev 1; if test $mmc0 = 1; then setenv mmcroot
/dev/mmcblk1p2 rw; fi; ext4load mmc 1:2 ${loadaddr} /boot/zImage; fi;
#optargs=quiet nomodeset
capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN
#optargs=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN
capemgr.enable_partno=BB-SPIDEV0,BB-SPI1CLK
That's with the BBB as 192.168.1.17, and the server as 192.168.1.20. The
server is running NFS and TFTP servers (and an NTP server, come to that).
You _really_ need to use a serial/FTDI converter on tty0 while testing -
it's the only way to find out what's going on.
Will
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