Mikkel, I just found this forum after a couple beaglebones I have starting displaying the same problem discussed here. I figured I would reply to you since I saw you just posted. I have a question on how to implement Andrew's solution. I am able to download and build the u-boot, everything is working fine there. Then I have two files, MLO and u-boot.img that I can copy into the boot directory (/boot/uboot I am using Debian and booting from the eMMC). My question is when are we suppose to edit the config.h file? After I build and move the 2 files? I'm wondering because in Andrew's post he mentions that he edited the config.h file then rebuilt the u-boot. But when I try this it just overwrites the config.h file back to the original. So I assume the process should be first download and build the u-boot, then move the MLO and u-boot.img to the boot directory, finally edit the config.h file. Is this correct? I have tried everything I can think of but my board is still hanging on boots about 1 out of 20. Forgive me because I am not too familiar with Debian. Thank you for any help you can provide!
On Thursday, January 15, 2015 at 8:43:07 AM UTC-6, Mikkel Kirkgaard Nielsen wrote: > > -----BEGIN PGP SIGNED MESSAGE----- > Hash: SHA1 > > Hi there Martin. > > On 2015-01-14 18:05, [email protected] <javascript:> wrote: > > Just as a +1 to Andrew's findings: In summary, this software fix is > > still highly useful. > > Glad you were able to solve your issue. > I'm just wondering if Andrew's autoboot solution/hack hasn't > propagated to the official software yet? > > Seems odd if not, since so many has been bitten by it and it is now 15 > months since it was first described (2013-10-28: > https://groups.google.com/forum/#!msg/beagleboard/aXv6An1xfqI/2_tLa7oWQBIJ). > > > > I haven't studied the u-boot source before but I just took a sniff at > the mainline repository (http://git.denx.de/u-boot.git). > I found that for BBB (really am335x) u-boot still defaults to aborting > autoboot if any characters are received on the serial console and then > waiting forever for further commands. > > Below is a patch mitigating this situation in mainline master > (binaries at > > http://www.mikini.dk/wp-content/uploads/2015/01/u-boot_mainline_BBB-autoboot-patch_201501151.zip). > > > It requires typing more characters ("stop") to abort and uses a new(?) > config feature to reset the board if autoboot is aborted but no > commands are entered (for 30 sec). > Except for the 30 sec timeout, which doesn't kick in for some unknown > reason, it seems to behave ok. > > Disclaimer: this is mostly an experiment, there is a lot of u-boot > trees and patches floating around for the BBB (like > https://github.com/beagleboard/u-boot), so probably mainline hasn't > got the most recent stuff for BBB yet. > > > diff --git a/include/configs/ti_am335x_common.h > b/include/configs/ti_am335x_common.h > index 5ed86d9..c58f467 100644 > - --- a/include/configs/ti_am335x_common.h > +++ b/include/configs/ti_am335x_common.h > @@ -12,6 +12,12 @@ > #ifndef __CONFIG_TI_AM335X_COMMON_H__ > #define __CONFIG_TI_AM335X_COMMON_H__ > > +#define CONFIG_AUTOBOOT_KEYED > +#define CONFIG_AUTOBOOT_STOP_STR "stop" > +#define CONFIG_AUTOBOOT_PROMPT "autoboot in %d seconds (type '%s' to > abort)\n",bootdelay,CONFIG_AUTOBOOT_STOP_STR > +#define CONFIG_BOOT_RETRY_TIME 30 > +#define CONFIG_RESET_TO_RETRY > + > #define CONFIG_AM33XX > #define CONFIG_ARCH_CPU_INIT > #define CONFIG_SYS_CACHELINE_SIZE 64 > @@ -102,4 +108,7 @@ > /* Now bring in the rest of the common code. */ > #include <configs/ti_armv7_common.h> > > +#undef CONFIG_BOOTDELAY > +#define CONFIG_BOOTDELAY 5 > + > #endif /* __CONFIG_TI_AM335X_COMMON_H__ */ > > > > Thank you Andrew and Guglielmo for your work! > > Thumbs up, also for Guillermo ;). > > - -- > Mikkel > ,= ,-_-. =. > ((_/)o o(\_)) > `-'(. .)`-' > \_/ > keybase.io/mikini > -----BEGIN PGP SIGNATURE----- > Version: GnuPG v1 > > iQEcBAEBAgAGBQJUt9HnAAoJEJ2luFWzaTSaqCoH/2cuFepOVkHGM0gGaGV5U8Dg > /Z3O4Cb1zGyasSeYLZbU5XfOms6k66hbLmbQiDYIKkMv/KS0gcjjkuFaZBE2NdVJ > xFnaPS/XPd8MJcwWQMVScFafNJE1E4KLHe437FeenPZLEBcgtZc/AsTFX+mybKhC > oQfaUmrA9gT2KGmFoGB8Sp+4q4reciXicHRfet78aEF8g9FdqprQvf4xjfcZYgxL > 0cNNbXh+mmT+AjSCB4CEze25V5yitvfT744WUUHFznfRWXkRVvKpiVeiDwdswKcs > AaV5yjCqxb0F3iM4leRxdDy3FhuMjxmyZxk9HpwO/sLKExigNktpd3aRjuHO7ds= > =jU44 > -----END PGP SIGNATURE----- > -- 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.
