Thanks William, but I checked those already. Unfortunately I think the issue is deeper than that in the kernel drivers (or a combination of both). It looks like a simple hardware change to a larger 4GB eMMC (same Micron chip series), but the mmc driver fails when reading the chip configuration. Specifically I see the driver emit an error on the EXT_CSD register version. From dmesg:
[0.940510] mmc1: unrecognised EXT_CSD revision 7 ... [0.945454] mmc1: error -22 whilst initialising MMC card On Tuesday, June 14, 2016 at 12:16:26 PM UTC-4, William Hermans wrote: > I believe you need the correct board file. e.g. it's possibly missing from > your build. > > $ ls /boot/dtbs/4.4.9-bone-rt-r10/ > am335x-abbbi.dtb am335x-boneblack-cape-bone-argus.dtb > am335x-chiliboard.dtb > am335x-arduino-tre.dtb am335x-boneblack-emmc-overlay.dtb > am335x-evm.dtb > am335x-baltos-ir5221.dtb am335x-boneblack-hdmi-overlay.dtb > am335x-evmsk.dtb > am335x-base0033.dtb am335x-boneblack-nhdmi-overlay.dtb > am335x-lxm.dtb > am335x-bone-cape-bone-argus.dtb am335x-boneblack-overlay.dtb > am335x-nano.dtb > am335x-bone.dtb am335x-boneblack-wl1835mod.dtb > am335x-olimex-som.dtb > am335x-boneblack-audio.dtb am335x-boneblack.dtb > am335x-pepper.dtb > am335x-boneblack-bbb-exp-c.dtb am335x-bonegreen-overlay.dtb > am335x-sancloud-bbe.dtb > am335x-boneblack-bbb-exp-r.dtb am335x-bonegreen-wireless.dtb > am335x-sl50.dtb > am335x-boneblack-bbbmini.dtb *am335x-bonegreen.dtb* > am335x-wega-rdk.dtb > > > On Tue, Jun 14, 2016 at 8:06 AM, Mark Rawson <[email protected] > <javascript:>> wrote: > >> I have a project that I have been working on for some several years. It >> started out on a BeagleBone White, but recently it was moved to the >> BeagleBone Green so it run off eMMC instead of an SD card. I have been >> using embedded Ubuntu 14.04 (trusty) with the 3.8.13-bone79 bb-kernel >> following the instructions at >> https://eewiki.net/display/linuxonarm/BeagleBone. >> >> I just received a newer BBG last week and I was unable to flash my image >> to the eMMC. Monitoring the debug output, I noticed that the eMMC failed >> to initialize when the SD card was used so the flashing could not be done. >> After some research, it appears that the eMMC hardware has been changed >> on the Green. On the BBB Wiki, I also saw that the Black appears to have >> a similar change in Rev C. Experimenting with several of the flashing >> images on http://beagleboard.org/latest-images, the one one I can get >> working is the Debian 8.4 Jessie version. >> >> Is there a way to get the eMMC working with embedded Ubuntu 14.04 >> (trusty) with the 3.8.13-bone79 bb-kernel? >> >> Thanks! >> >> Mark >> >> -- >> 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] <javascript:>. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/beagleboard/c2d1e59d-a95c-4d4e-a3fe-cf56daa231f6%40googlegroups.com >> >> <https://groups.google.com/d/msgid/beagleboard/c2d1e59d-a95c-4d4e-a3fe-cf56daa231f6%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > > -- 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]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/77d8bac2-b48a-4ad6-bc0a-5f733e641deb%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.
