[U-Boot] TFTP timeouts, i.mx fec problem?

[Wolfgang Denk]

Dear Stefano Babic,

In message <51A86445.3040703 at denx.de> you wrote:
>
> At first glance the problem should be with the set up of the phy. It
> could take longer as expected, or there are some issues with the
> specific PHY of the board. An issue in general code of FEC driver is not
> probable, because the same code runs on most of i.MXes without problems.

Well, we do have this first-ARP-failing problem on a number of boards,
and especially the i.MX based boards appear to be affected - just
check which boards set CONFIG_ARP_TIMEOUT in their board configs:

	mx31ads
	mx35pdk
	mx51evk
	mx53ard
	mx53evk
	mx53loco
	mx53smd
	mx6qarm2
	mx6qsabre
	qong
	woodburn

Actually these are only_ i.MX based boards!

> From your report, it looks like that the link of the phy is not yet
> active when the fec_send is called, and then no ARP message is sent.

The question is if there is no better way to wait for the PHY to
become (really) ready?

> Could you try setting #define CONFIG_ARP_TIMEOUT to some high value
> (when it is set, the value is often 200mS) to check if the issue
> disappears ?

Indeed, this should help.  But it remains just a workaround, it ain't
a real fix.

Best regards,

Wolfgang Denk

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