Hi Rishi, > I have a board which has a version of u-boot on it that I would like > to save before overwriting. I did not flash this version so I do not > have the source code for it. > > I am trying to figure out is there away to essentially do a 'tftp get' > of the u-boot.bin that was originally written to flash. I do not see > any methods to "read" data from U-boot back to the PC. Is there any > method to do this?
The only thing that I know of is CONFIG_CMD_SAVES which does a "save S record over serial line" (check common/cmd_load.c). It is likely that your binary U-Boot does noe have this feature though (it is not in config_cmd_default, so the board maintainer has to define it explicitely). When I needed to do this, I could either attach a BDI3000 which can do a tftp put (remember to create the file on the host first, otherwise it will fail silently!), or I used a linux kernel that was able to read U-Boot through the mtd interface. If you decide to implement a "tftpput" command, I for one would find this a very nice addition indeed ;) Cheers Detlev -- Question : If you were redesigning UNIX, what would you do differently? Ken Thompson: I'd spell creat with an e. -- DENX Software Engineering GmbH, MD: Wolfgang Denk & Detlev Zundel HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: d...@denx.de _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot
