Jumping in a little late perhaps but my concern is slightly relevant to the discussion here.
Nelson desribes the boot order: bootrom loads MLO from eMMC (if that fails it moves to microSD) MLO loads u-boot.img from eMMC u-boot.img first looks at microSD for uEnv.txt, reads that file in. I'd like to reverse that last step and make it to default to uEnv.txt from the eMMC. But I have no idea how to modify u-boot.img. What should I be reading? Or is there a u-boot.img that exists already that will allow me to boot off of the eMMC even if the flasher uSD is present (which I understand is the HW default)? Thanks, Louis On Friday, March 7, 2014 11:12:13 PM UTC-5, Loren Amelang wrote: > > My long but successful "learning experience" is reported in: > https://groups.google.com/forum/#!topic/beagleboard/zNtdwtPf2Q8 > > Definitely not simple, but possible... Without making any changes to the > eMMC installation! > > On Monday, February 17, 2014 10:17:22 PM UTC-8, Loren Amelang wrote: >> >> Robert, >> >> My BBB absolutely must default to booting from the uSD. I know I >> could short the boot switch, or move pull-up/down resistors, or create a >> hardware switch gated from reset, but I don't want to lose hardware >> compatibility with other BBB boards, or give up the option of manually >> booting from eMMC occasionally. The code you suggest here sounds perfect - >> but I'm not positive what to do with it. From the formatting of the text, I >> suspect it is intended to be compiled into a new u-boot.img and MLO image, >> but I'm not sure how to do that. >> >> Before I spend hours learning how, is there a chance I could just insert >> the basic ideas into my uEnv.txt as "mmcboot=mmc dev 0; if mmc rescan ; >> then ..."? It does look like uEnv.txt is read before the mmcboot command >> runs... >> > > -- 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.
