On 22/03/2012 09:08, Züger Martin wrote: > Hi everybody > > My name is Martin and I'm new to this mailing list. I hope this is the right > place to ask my question. > I'd like to install U-Boot on a Karo TX25. From the Denx FTP server I've > downloaded the 2011.12 release of U-Boot and compiled it using the > arm-linux-gnueabi-gcc (4.4.5) from Debian: > $ make tx25_config > $ CROSS_COMPILE=arm-linux-gnueabi- make all > After compiling I've downloaded the u-boot.bin file to the board using the > pre-installed RedBoot:
Wait - as far as I know, the tx25 boots from NAND, and you need also the SPL part to replace Redboot. > RedBoot> load -r -b 0x80100000 -h 192.168.1.101 u-boot.bin > Using default protocol (TFTP) > Raw file loaded 0x80100000-0x80129617, assumed entry at 0x80100000 > Finally I tried to start U-Boot directly from RAM: u-boot for TX25 is linked at address 0x81200000, not 0x80100000. Try with the correct address. > > May someone can explain me, how to download U-Boot to the Karo TX25 using the > already installed RedBoot and execute it directly? Is this even possible? My > final target is to replace RedBoot with U-Boot, so I'd like to write U-Boot > to flash in a second step. Does I've to use the u-boot-nand.bin file instead > of u-boot.bin for this? The correct way (but one-way if you have not a JTAG debugger) is to replace the redboot code in NAND with u-boot, that is u-boot-nand.bin. But try with the correct address, if it works you have all u-boot commands to store u-boot itself in NAND. Best regards, Stefano Babic -- ===================================================================== DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: +49-8142-66989-0 Fax: +49-8142-66989-80 Email: off...@denx.de ===================================================================== _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot