On Tue, Nov 17, 2015 at 4:15 PM, Robert Nelson <robertcnel...@gmail.com> wrote: >>> migration to driver model >>> >>> http://git.denx.de/?p=u-boot.git;a=tree;f=doc/driver-model;hb=HEAD >> >> Robert, do you mean that U-Boot is migrating to driver model during that >> delay? Or the delay is the result of U-boot having updated to the new driver >> model? >> >> If the latter, what's it doing during those two seconds? Is there any way to >> speed that up? Eventually, I'd like to have a very fast-booting BBB. > > For me, it was around the initial driver model merge that we got that > slight delay. > > Of course, it might also be newer ddr timing init.. > > The slow down didn't really bug me so i never looked too deeply in it.. > > But if you guys want speed, switch to u-boot's falcon mode: > > MLO -> kernel > > vs: > > MLO -> u-boot.img -> kernel > > it might not be 100% evident, but you'll need to hardcode a lot of > stuff in MLO that u-boot.img currently reads from uEnv.txt
For other speed up's, look into the am335x_evm board/mux files, you'll notice it relies on reading an eeprom over i2c.. A lot of that can be factored out if you know exactly what board you have. (i2c can be slow)... Regards, -- Robert Nelson https://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/d/optout.
