Configuring U-Boot; Using Ramdisk Image; Using Nfs (Default U-Boot Configuration) - Texas Instruments OMAP35 Series User Manual

3.3. Configuring U-Boot

This section assumes that EVM has been setup properly.
1.
2.
3.
4.
Some commands entered on the console are long. The command text may
appear wrapped in the document. Wherever indicated, these commands must
be entered in a single line.

3.3.1. Using ramdisk image

Set the bootargs:
Set the bootcmd:

3.3.2. Using NFS (Default U-Boot configuration)

Set the bootargs:
Version 02.01.01.08
Enable UART1 on the EVM : On Jumper J8 select 1-2
Connect EVM (UART1) to the HOST PC through serial cable.
Start a terminal emulator (e.g. Hyperterm) on the HOST PC.
Power on EVM and wait for u-boot to come up.
OMAP3EVM# setenv bootargs mem=128M console=ttyS0,115200n8
root=/dev/ram0 rw initrd=0x81600000,16M ip=dhcp
Note
The entire command should be entered in a single line.
OMAP3EVM# setenv bootcmd 'dhcp;
tftp 0x80000000 uImage;tftp 0x81600000 ramdisk.gz;
bootm 80000000'
Note
The entire command should be entered in a single line.
OMAP3EVM# setenv bootargs console=ttyS0,115200n8 noinitrd
Platform Support Products
U-Boot
Configuring U-Boot
19