Jani, Am Montag 08 August 2011, 20:19:30 schrieb Jani Monoses: > Hi Ilya, Marc > > > so there is no code for ac100 that I wrote and know its usefull. > > > > > maby trying to load it after fastboot (not in place of) would give more > > > success. > > > > I also tried a port a few month ago. It basicly booted (including LCD) > > but at > > that time I had no serial console (now I have ;-). I failed to get a > > working > > config for the latest u-boot-next tree on chromium.org. Maybe you have > > some > > hint. I'm willing to test it using the serial console once I get it > > compiled. > > Do you guys have the code somewhere for others to test?
no my version (I deleted it from launchpad), but this here is more recent: https://github.com/chpec/uboot-ac100. (also obsolete now, but you my get a clue on what's required. > Marc, do you mean keyboard support for UBoot is not even attempted? Serial > console > is not readily available on the AC100 :) keyboard is a bit problematic because we need a special (nvec) driver for it. I also don't know if the i2c driver in u-boot is sufficient. > > You indeed need to load fastboot first which initialized the LCD. If we > > can get > > u-boot going that way, it would be a step in the right direction. > > Can you detail what are the various scenarios in which UBoot can run? The > one I think is most user friendly is having > it flashed to part 6 and booted by fastboot. I do not know very well how > the onboard bootloader works, this is what I understand so far: > > There's a fastboot instance in the EBT partition(?) (which behaves > differently in Android 2.1 and 2.2) that checks part 6 (and 5) for a valid > abootimg then loads it. > UBoot could be put in such an abootimg and optionally offer interactive > booting. correct. That's the way it worked here. > UBoot could also be run in another mode for development, out of RAM, but I > am not sure how that would involve nvflash and fastboot. Download fastboot > as we do now for reading/writing partitions but then sending it commands to > load another image in RAM and start it? that worked with bootloader from Android 2.1 if fastboot failed to find a valid kernel image in part6 (e.g. by formating it). Seems that with Android 2.2 bootloader that option was killed. So happy flashing ;-) Marc _______________________________________________ Mailing list: https://launchpad.net/~ac100 Post to : [email protected] Unsubscribe : https://launchpad.net/~ac100 More help : https://help.launchpad.net/ListHelp
