[U-Boot] USB Device Port not working in MPC8280 PowerPC

Gurumurthy Gowdar gurumurthy.gm at gmail.com
Fri Jul 17 13:15:38 CEST 2009


U-boot 1.3.1
ELDK 4.2

currently debugging in Code Warrior IDE. i have taken device port code from
u-boot i.e mpc8xx_udc.c  & modified to suit mpc8280.

With Regards,
Gurumurthy

On Fri, Jul 17, 2009 at 4:22 PM, Wolfgang Denk <wd at denx.de> wrote:

> Dear Gurumurthy Gowdar,
>
> In message <adaf92990907170335n3856a492i2b0738aa12af5b23 at mail.gmail.com>
> you wrote:
> >
> >                                       am facing problem on writing USB
> > device port driver for MPC8280,when i connect it to the host PC through
> USB
> > cable .device descriptor is happening host is setting the address but
> device
> > configuration is not happening properly...it hangs there in USB busy
> > handler.
>
> Which exact version of U-Boot are you running?
>
> Best regards,
>
> Wolfgang Denk
>
> --
> DENX Software Engineering GmbH,     MD: Wolfgang Denk & Detlev Zundel
> HRB 165235 Munich, Office: Kirchenstr.5, D-82194 Groebenzell, Germany
> Phone: (+49)-8142-66989-10 Fax: (+49)-8142-66989-80 Email: wd at denx.de
> Every program has at least one bug and can be shortened by  at  least
> one instruction - from which, by induction, one can deduce that every
> program can be reduced to one instruction which doesn't work.
>



-- 
Gurumurthy Gowdar


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