Texas Instruments TMS320DM6446 DVEVM v2.0, Руководство по началу работы

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Alternate Boot Methods
A-10
A.4.3 Booting from Flash Using NFS File System
To boot in this mode, set the following parameters after you abort the
automatic boot sequence:
EVM # setenv bootcmd 0x2050000
setenv bootcmd nboot 80700000 0 a0000;bootm EVM # setenv nf-
shost < ip address of nfs host >
EVM # setenv rootpath < directory to mount* >
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=$(videostd)
console=ttyS0,115200n8 noinitrd rw ip=dhcp root=/dev/nfs
nfsroot=$(nfshost):$(rootpath),nolock mem=120M
*For example,
< directory to mount >
might be
/home/< useracct >/workdir/filesys
.
Note: If you have flashed a new kernel to the NOR flash at an address
other than 0x2050000, modify the bootcmd definition accordingly.
When you boot, look for the following lines that confirm the boot mode:
## Booting image at 02050000 ...
...
Starting kernel ...
...
VFS: Mounted root (nfs filesystem).
A.4.4 Booting via TFTP Using NFS File System
To boot in this mode, set the following parameters after you abort the
automatic boot sequence:
EVM # setenv bootcmd 'dhcp;bootm'
EVM # setenv serverip < tftp server ip address >
EVM #
setenv bootfile < name of kernel image >
EVM # setenv rootpath < root directory to mount >
EVM # setenv nfshost < ip address of nfs host >
EVM #
setenv bootargs video=davincifb:vid0=720x576x16,
2500K:vid1=720x576x16,2500K:osd0=720x576x16,2025K
davinci_enc_mngr.ch0_output=COMPOSITE
davinci_enc_mngr.ch0_mode=$(videostd)
console=ttyS0,115200n8 noinitrd rw ip=dhcp root=/dev/nfs
nfsroot=$(nfshost):$(rootpath),nolock mem=120M