Makes sense, thanks very much for commenting on this. I will keep my uEnv.txt the way it is and ignore the dtb files.
On Tuesday, March 11, 2014 4:14:46 PM UTC-6, RobertCNelson wrote: > > On Tue, Mar 11, 2014 at 4:33 PM, Brett <[email protected]<javascript:>> > wrote: > > I am having trouble getting my Beagleboard-xm to boot when the > > omap3-beagle-xm.dtb is loaded by u-boot > > > > Best I can tell, u-boot loads the kernel and the dtb file successfully > but > > boot locks up with "Waiting for root device /dev/mmcblk0p2..." > > > > There are a number of things in the boot log that look unhealthy however > > directly relating to the SD card I found the following: > > > > [ 1.565521] omap_hsmmc mmc.20: unable to select pin group > > [ 1.571563] omap_hsmmc mmc.20: Failed to get debounce clk > > [ 1.577270] /ocp/mmc@4809c000: can't find DMA channel > > [ 1.582611] omap_hsmmc mmc.20: unable to obtain RX DMA engine channel > 62 > > > > If I modify my uEnv.txt to skip loading the dtb file everything appears > to > > load up properly. What can I do to troubleshoot the dtb? > > Well there's nothing to troubleshoot in "v3.7.x" for dtb booting, > device tree support sucked on omap3 back then and almost nothing > worked. It wasn't till v3.11.x that device tree booting on the omap3 > (beagle-xm) became end user usable. > > So with v3.7.x use the old board file, like you did in the modified > uEnv.txt. > > > I need SGX drivers so I am stuck with the following versions: > > I am using the 3.7.x kernel from > > https://github.com/RobertCNelson/stable-kernel > > Ubuntu 11.10 (no longer available to download from RCN's file server) > > u-boot 2014.1 from > > > http://eewiki.net/display/linuxonarm/BeagleBoard#BeagleBoard-Bootloader:U-Boot > > > > > About the bootloader: > > Ubuntu 11.10 comes with 2013.7 but there is something wrong with the > > uEnv.txt and the dtb cannot be loaded and falls back on loading the > kernel > > without it. > > I need to rebuild u-boot to remove the 2 second boot delay and kernel > > validation(boot speed is requirement of the project). > > The patches from RCN for version 2013.7 fail to apply properly so I am > using > > version 2014.1 which appears to be functioning properly. > > All the u-boot patches can be found in the history of: > > https://github.com/RobertCNelson/Bootloader-Builder > & <https://github.com/RobertCNelson/Bootloader-Builder&;> > https://github.com/eewiki/u-boot-patches > > > full boot log: > > http://pastebin.com/NbsM8gq0 > > > > uEnv.txt(dtb load disabled): > > http://pastebin.com/NWuYSYd8 > > > > I've been banging my head against the wall for about a week now on this. > Any > > ideas as to what I could try would be awesome! > > 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 [email protected]. For more options, visit https://groups.google.com/d/optout.
