On Fri, Dec 6, 2013 at 12:12 PM, David Lambert <d...@lambsys.com> wrote:
> I may be barking up the wrong tree here, but I also notice that the uboot
> partition contains dtbs (see below). Do I need to put my cape's dtb here?
> Also I am attaching the uEnv.txt from the Debian system. I am particularly
> confused by the line:
>
> loadfdt=load mmc ${mmcdev}:${mmcpart} 0x815f0000 /dtbs/${fdtfile}
>
> I have been looking for some documentation on this without success.I'm not sure on your confusion. With Angstrom the bootloader/uEnv.txt matched each other and since they programmed them at the factory they had a 100% guarantee of what was installed. In my case, I have to deal with the original factory u-boot/MLO, and i also support a good dozen more boards. So for my sanity the uEnv.txt has a lot of generic options that override some of the factory defaults for this board. So if you compare with a board that has no factory (NAND/eMMC) like the orignal bone, the uEnv.txt is a lot simpler: http://eewiki.net/display/linuxonarm/BeagleBone#BeagleBone-uEnv.txtbasedbootscript So back to the line: loadfdt=load mmc ${mmcdev}:${mmcpart} 0x815f0000 /dtbs/${fdtfile} For the bone (this image will boot on board boards): ftdfile: (set by u-boot.img) am335x-boneblack.dtb am335x-bone.dtb you can also override this with "fdtfile=am335x-mycape.dtb" (all dtb's are in a single directory in the fat partition) mmcdev: 0: microSD 1: eMMC mmcpart: 1: (fat partition..) (i don't use 2, ext4) In your case, follow William's example and add: optargs=capemgr.disable_partno=BB-BONELT-HDMI,BB-BONELT-HDMIN To the top of the uEnv.txt.. 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/groups/opt_out.
