Texas Instruments TMS320DM6446 DVEVM v2.0 Getting Started Manual page 63

A.4.2 Booting via TFTP Using the EVM's Hard Drive File System
To boot in this mode, set the following parameters after you abort the
automatic boot sequence:
EVM # setenv bootcmd bootm 0x2050000
setenv bootcmd nboot 80700000 0 a0000;bootm
EVM # setenv bootargs video=davincifb:vid0=720x576x16,
2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K
davinci_enc_mngr.ch0_output=COMPOSITE
davinci_enc_mngr.ch0_mode=$(videostd)
console=ttyS0,115200n8 noinitrd rw ip=dhcp
root=/dev/hda1 mem=120M
Note: If you have flashed a new kernel to the NOR flash at an address
other than 0x2050000, modify the bootcmd definition accordingly.
When you boot, look for the following line that confirms the boot mode:
## Booting image at 02050000 ...
To boot in this mode, set the following parameters after you abort the
automatic boot sequence:
EVM # setenv bootcmd 'dhcp;bootm'
EVM # setenv bootargs video=davincifb:vid0=720x576x16,
2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K
davinci_enc_mngr.ch0_output=COMPOSITE
davinci_enc_mngr.ch0_mode=$(videostd)
console=ttyS0,115200n8 noinitrd rw ip=dhcp
root=/dev/hda1 mem=120M
EVM # setenv serverip <tftp server ip address>
EVM # setenv bootfile <path on tftpserver>/uImage
When you boot, look for the following lines that confirm the boot mode:
TFTP from server 192.168.160.71; our IP address is
192.168.161.186
Filename 'library/davinci/0.4.2/uImage'.
...
## Booting image at 80700000 ...
Alternate Boot Methods
Additional Procedures A-9