U-boot expects uImage format for the kernel image.
In order to LTIB generate a uImage file:
$ export SYSCFG_KTARG=uImage $ ./ltib -p kernel
Setup in U-Boot the kernel bootargs:
u-boot> setenv bootargs noinitrd console=ttymxc0,115200 init=/linuxrc root=/dev/nfs nfsroot=10.29.244.27:/tftpboot/rootfs ip=dhcp
Change 10.29.244.27 to your host IP.
The procedure above is needed when default bootloader used by ltib was redboot.
In some ltib releases (before 2010) default bootloader is u-boot. In this case, ltib will create uImage by default
# Configuration file for fw_(printenv/saveenv) utility.
# Up to two entries are valid, in this case the redundant
# environment sector is assumed present.
# Notice, that the "Number of sectors" is ignored on NOR.
# MTD device name Device offset Env. size Flash sector size Number of sectors
#/dev/mtd1 0x0000 0x4000 0x4000
#/dev/mtd2 0x0000 0x4000 0x4000
# NAND example
/dev/mtd0 0x80000 0x40000 0x20000 2
After porting u-boot to your i.MX5x board you might want add it on LTIB menu, "Choose your board for u-boot" section. For this, edit ltib/config/platform/imx/main.lkc to add your board:
Enter board on menu:
comment "Choose your board for u-boot"
choice
prompt "board"
default BOARD_MX51_BBG
depends on PLATFORM = "imx51"
help
This menu will let you choose the board you use.
...
+ config BOARD_MX53_MYBOARD
+ bool "mx53_myboard"
...
endchoice
Add the "mx53_myboard_config" that matches your board configuration on the u-boot Makefile to PKG_U_BOOT_CONFIG_TYPE:
config PKG_U_BOOT_CONFIG_TYPE
string
...
+ default "mx53_myboard_config" if ( PLATFORM = "imx51" && BOARD_MX53_MYBOARD && !PKG_KERNEL_UPDATER )
...