Robert, Thanks for pointing it out. I flashed the image and put the TP2 to GND (using the BeagleBone white).
Tried it and got an infinite loop with the following: *U-Boot SPL 2014.04-00015-gb4422bd (Apr 22 2014 - 13:24:29)* *Incorrect magic number (0xffffffff) in EEPROM* *Could not get board ID.* *Incorrect magic number (0xffffffff) in EEPROM* *Could not get board ID.* *Unknown board: assuming BeagleBone Black.Incorrect magic number (0xffffffff) in EEPROM* *Could not get board ID.* *U-Boot SPL 2014.04-00015-gb4422bd (Apr 22 2014 - 13:24:29)* *Incorrect magic number (0xffffffff) in EEPROM* *Could not get board ID.* *Incorrect magic number (0xffffffff) in EEPROM* *Could not get board ID.* *Unknown board: assuming BeagleBone Black.Incorrect magic number (0xffffffff) in EEPROM* *Could not get board ID.* *....* Any ideas? 2014-07-01 19:06 GMT+02:00 Robert Nelson <robertcnel...@gmail.com>: > On Tue, Jul 1, 2014 at 11:51 AM, Jason Kridner <jkrid...@gmail.com> wrote: > > On Tue, Jul 1, 2014 at 11:49 AM, Víctor MV <v.mayor...@gmail.com> 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). > > Well, i really don't have a script to build "one" bootloader. ;) > > https://github.com/RobertCNelson/Bootloader-Builder > > I kinda ended up in a situation where i'm tracking 15 boards in u-boot > mainline. ;) opps! > > As u-boot releases happen, i push those patches to " > https://github.com/eewiki/u-boot-patches/ " so we can hard link to > them. The patches in Bootloader-Builder tend to churn a lot. > > > 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. > > Oh, I'm just ignoring the fact u-boot has a "am335x-boneblack" config, > as "am335x-evm" supports both beaglebone's... Easier to share a > microSD between the white/black. > > > 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. > > The > > > > >> > >> 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)? > > GND test point TP4 and boot with: > > > http://rcn-ee.net/deb/testing/2014-05-14/BBB-blank-eMMC-flasher-debian-7.5-2014-05-14-2gb.img.xz > > as long as your i2c bus works, this'll boot and program the eeprom.. > > Regards, > > -- > Robert Nelson > http://www.rcn-ee.com/ > -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
