[U-Boot] Taskit Portux920T port - Some issues

[Detlev Zundel]

Hi,

> Hi, we are Enrico & Luca.

Hi Enrico and Luca, welcome aboard!

> We have tried to port u-boot to a Portux920T MiniPC.
> It seems we are successful, in fact u-boot brings up the device with no
> error and can boot a linux kernel.
> Ethernet driver works, dhcp works and major problems are present.

Congratulations!  Do you realize that only yesterday there was another
posting of a port to this board?  In that other port NOR flash support
wasn't even tried ;)

> The only thing we can't get right is flash programming. We are trying to use
> CFI flash driver that shows evident timing issues, at least in our opinion.
> When running saveenv more than once we get the typical "Flash not erased"
> error, while running cp.b (for example) does not give us any problem.
> Running a "bootm kerneladdr initaddr" command it frequently gives us a "No
> boot image - CRC error", but running it another time, without rebooting the
> machine, results in a successful boot.

So in essence you see read errors without any writing, correct?  In this
case I would not suspect the CFI driver at all, because it is not
involved, but rather point the finger to the RAM initialization.  Are
you 100% sure that this is correct?  Maybe compare with the other posted
port.

So in essence I suggest, you compare your work with the other work and
work out where to go from there.  You may even ask Achim Ehrlic
directly, after all he works at Taskit, so he may be able to help you
efficiently :)

[...]

> Thank you in advance for reading this mail

Thanks for improving U-Boot :)

Cheers
  Detlev

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