On Tue, Jul 1, 2014 at 11:49 AM, Víctor MV <[email protected]> wrote: > Jason > > I'm searching for one of the old BB images that allowed to write the EEPROM > from u-boot. One of those that you could use to access the u-boot even if > the EEPROM was empty.
You don't have to go old for that. Robert continues to build updated u-boot images that ignore the EEPROM such that you can boot and program it. Realize there is a test-point on the board if you want to un-write-protect the EEPROM. The image-builder specifies the image to get here: https://github.com/beagleboard/image-builder/blob/master/tools/setup_sdcard.sh#L1220 That means that the actual built u-boot images are at http://rcn-ee.net/deb/tools/am335x_boneblack/. I'm not sure where the sources are! Robert, please jump in here as it isn't obvious, especially since the image build script doesn't have an option for rebuilding the bootloader (it seems it should). I see a bunch of patches here: https://github.com/eewiki/u-boot-patches/blob/master/v2014.07-rc3/0001-am335x_evm-uEnv.txt-bootz-n-fixes.patch (per http://eewiki.net/display/linuxonarm/BeagleBone+Black#BeagleBoneBlack-Bootloader:U-Boot), but I don't see the one for am335x-boneblack.h. Robert?!? I believe we should push the am335x-boneblack.h file into mainline and annotate it clearly to be used only in cases of a board without an EEPROM. > > I've been trying with some of the images available at > http://downloads.angstrom-distribution.org/demo/beaglebone/archive/. > But i keep getting something like: > > U-Boot SPL 2011.09-00000-gf63b270-dirty (Nov 20 2011 - 19:58:24) > Texas Instruments Revision detection unimplemented > Incorrect magic number in EEPROM > read_eeprom() failure > : 0 > spl: fat register err - -1 > ### ERROR ### Please RESET the board ### > > or > > U-Boot SPL 2011.09-00010-g81c8c79 (Feb 13 2012 - 14:48:03) > Texas Instruments Revision detection unimplemented > Incorrect magic number in EEPROM > read_eeprom() failure > : 0 > mmc_read_data: timedout waiting for status! > mmc_send_cmd: timedout waiting for cmddis! > ** Can't read partition table on 25000000:0 ** > ** Partition 1 not valid on device 25000000 ** > spl: fat register err - -1 > ### ERROR ### Please RESET the board ### > > and doesn't allow me to actually access u-boot prompt to write the magic > number. > > Do you happen to have one of those images around (i believe that the right > u-boot.img would be enough)? > > Bests, > > Víctor. -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/d/optout.
