From mboxrd@z Thu Jan 1 00:00:00 1970 From: Johnson Yu Date: Fri, 10 Jul 2009 18:53:39 +0800 Subject: [U-Boot] Integrate AT91 Boot func into U-boot, under A91RM9200 board In-Reply-To: References: <194075.70132.qm@web28310.mail.ukl.yahoo.com> Message-ID: <4A571DB3.2070602@yahoo.co.uk> List-Id: MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: u-boot@lists.denx.de Hi, Simply put, my question is: To port U-boot-2009.06 into an AT91RM9200-based self-produced board, all the modifications have successfully been done and this latest U-boot runs on my board, named ceiboard. Normal procedure is, downloading loader.bin then U-boot.bin and running on RAM, after that loading boot.bin to FLASH 0x10000000 followed by U-boot.gz on FLASH too, and then set BMS to boot from external memory--FLASH. So, boot.bin runs first and it uncompresses U-boot.gz to RAM and jump to that address on RAM. Now, I don't want this boot.bin thing as a separate file and want it as part of U-boot.bin, how should I do it?? My solution is: 1) copy entry.S, crt0.S, initboot.c, AT91RM9200.h to /board/geari/ceiboard/(which is my board location); and change the jump instruction in crt0.S---not to call the uncompress function, boot(), in AT91RM9200BOOT/main.c, but to call _start in /cpu/arm920t/start.S --- and, of course, to not confuse the compiler, I changed _start of start.S to uboot_start and kept _start in AT91RM9200BOOT/entry.S as the unique entry point of the program. like below: b boot ===> b uboot_start (in crt0.S) 2) modify linker script /board/geari/ceiboard/u-boot.lds to: ..text : { board/geari/ceiboard/entry.o (.text) board/geari/ceiboard/crt0.o (.text) cpu/arm920t/start.o (.text) *(.text) } and with rest of u-boot.lds intact. then I started compiling, and got some errors: /home/johnson-yn/GEARI/u-boot-ceiboard/include/asm/arch/AT91RM9200.h:103: error: expected identifier or ?(? before numeric constant /home/johnson-yn/GEARI/u-boot-ceiboard/include/asm/arch/AT91RM9200.h:104: error: expected ?;? before ?AT91_REG? make[1]: *** [mkimage.o] Error 1 make[1]: Leaving directory `/home/johnson-yn/GEARI/u-boot-ceiboard/tools' make: *** [tools] Error 2 any suggestions???? Regards, Johnson. Yu Detlev Zundel wrote: > Hi, > > >> I met this compiling error, any idea? >> >> /common/env_flash.c:312: undefined reference to `flash_sect_protect' >> /common/env_flash.c:316: undefined reference to `flash_sect_erase' >> /common/env_flash.c:329: undefined reference to `flash_sect_protect' >> make: *** [u-boot] Error 1 >> > > Sure you are missing the definition of those functions. Maybe you'd > care to give us information so we can reproduce this? Is this a > standard configuration? What version of U-Boot? > > Thanks > Detlev > > ___________________________________________________________ All new Yahoo! Mail "The new Interface is stunning in its simplicity and ease of use." - PC Magazine http://uk.docs.yahoo.com/nowyoucan.html