Re: [U-Boot] Question: Installing U-Boot on the Karo TX25
On Thursday, March 22, 2012 4:06 PM, Stefano Babic wrote: Hi Martin, Hello Stefano please do not remove the ML when you post an answer. Your experience can be helpful for other people, too. Sorry about that, I just hit the replay button and didn't realized that the answer went directly to you instead to the mailing list. Generally, they can share the same value, but they have different meaning. For TX25, the link address is set in board/karo/tx25/config.mk. However, this is the old way to do things. Currently, CONFIG_SYS_TEXT_BASE (link address) must be set into the board configuration file (tx25.h). CONFIG_SYS_NAND_U_BOOT_DST tells the first loader (nand_spl) where u-boot code must be copied. If u-boot has a small header that must be also copied, the two address are different. On tx25, they have the same value. Thank you very much for your explanation. I'd like to learn how u-boot works and how a board support package have to be implemented. Probably I'd better choose another board if the BSP of the TX25 uses some deprecated ways. Best regards, Martin ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
[U-Boot] Question: Installing U-Boot on the Karo TX25
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: RedBoot load -r -b 0x8010 -h 192.168.1.101 u-boot.bin Using default protocol (TFTP) Raw file loaded 0x8010-0x80129617, assumed entry at 0x8010 Finally I tried to start U-Boot directly from RAM: RedBoot exec Using base address 0x8010 and length 0x00029618 After that, the board (or at least the serial connection) stops working. I also tried the same with the pre-compiled binaries from here: http://www.denx-cs.de/sites/all/files/tx25.zip but with the same result. 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? Thanks! Best regards, Martin Zueger ___ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
Re: [U-Boot] Question: Installing U-Boot on the Karo TX25
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 0x8010 -h 192.168.1.101 u-boot.bin Using default protocol (TFTP) Raw file loaded 0x8010-0x80129617, assumed entry at 0x8010 Finally I tried to start U-Boot directly from RAM: u-boot for TX25 is linked at address 0x8120, not 0x8010. 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
