Building U-Boot for TX28 ======================== Unpacking the source -------------------- mkdir u-boot cd u-boot tar -xzf /cdrom/U-Boot/u-boot-src.tar.bz2 sudo tar -C / -xzf /cdrom/Tools/Linux/elftosb.tgz Compiling U-Boot ---------------- cd u-boot-2009.08 export ARCH=arm export CROSS_COMPILE=arm-926ejs-linux-gnueabi- make tx28_config make u-boot_ivt.sb Flashing U-Boot Image --------------------- Load the U-Boot image with sbloader (either the Windows version or the Linux version) and use the builtin 'romupdate' command to program the image into the flash. Put the u-boot_ivt.sb file in the TFTP server data directory (usually /tftpboot). Load the U-Boot image: Enter the following commands at the U-Boot prompt set autostart no set autoload yes set bootfile u-boot_ivt.sb bootp romupdate Power down the module, make sure the BOOT_MODE jumper (ST3) is removed and re-apply power to start from flash.