[meta-xilinx] u-boot SPL from QSPI flash

[Alan DuBoff]

On Tue, February 25, 2014 7:13 am, Mike Looijmans wrote:
> My patches made it so that u-boot will still look for an "autorun.scr" on the
> SD card, so you can boot from SD while getting the bootloader from flash.

I see it is all setup when I use printenv, at least I see some addresses that
look like they are setup for the qspi.

Could I change the modeboot to qspiboot, from the u-boot prompt and boot if I
had something flashed to the qspi? I just tried that but it didn't work, but I
don't have anything in the qspi yet, I don't think...

> I plan on adding UBI support to the bootloader. Then all the partitions -
> except the bootloader ones - can be replaced with one big ubi volume.

That would be nice, then one could have the device booting on flash with ubifs
on the SD card, but still be able to fall back to booting from the SD card if
the qspi was horked for some reason, and in both cases be able to mount the
rootfs. Is that correct?

> I think you can get a "login" prompt in maybe less than 2 seconds then.

That would be nice.

That u-boot prompt works nicely on the SD card...this is a nice, fast booting
SD card. It does pause while mounting the rootfs, but that's fine with me.
Most everything seems to be working, although I saw the alsa driver can't
load.

Good show Mike!

-- 
Cheers,
Alan