[U-Boot] 'usb start' works very unstable

[Wolfgang Denk]

Dear Sergei Trofimovich,

In message <20100807163957.52c1cceb at mosly> you wrote:
>
> > > Heh, capacity is reported incorrectly, but it works am I'm able
> > > to load kernel from there.
> > The reason for this is that the multiplication 488397168 x 512 will
> > overflow a 32 bit integer as used in "disk/part.c"; this shouldbe
> > fixed...
> 
> This issue is still here:

Sorry for not being clear. What I meant was: this is a bug that needs
to be fixed (patches welcome).


> And I can't reproduce it anymore with 'u-boot/master'.
> Rebooted 3 times and I have stable detection \o/.

Good. At least one problem solved.

>     $sudo openocd -f /usr/share/openocd/scripts/board/sheevaplug.cfg
>     Open On-Chip Debugger 0.5.0-dev-00466-g28ddefd (2010-08-06-22:54)
> ...
>     > reset

Hm... I am not sure what exactly the OpenOCD debugger does when you
run the reset command; eventually it performs some initializations
(defined in sheevaplug.cfg ?), and/or prevents others. The CPU may, or
may not, be in the virgin state expected by U-Boot.

Detach the debugger, and perform a real hard reset instead. Or try to
configure the debugger not to perform any initializations (i. e. the
equivalent of the "reset run" command on BDI2000/30000).

Best regards,

Wolfgang Denk

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