[ELDK] Lite5200B and USB Mass Storage

Detlev Zundel dzu at denx.de
Tue Aug 25 15:12:36 CEST 2009

Hello Thomas,

> I'm trying to get USB to work on my LITE5200b board, but anything
> seems not working well.  I downloaded the latest kernel on the denx
> git repository (linuxppx_2_4_devel) and the latest u-boot (1.1.6)
> Source.

Wow, I double checked the mail headers, but this mail is from this
century ;)

No seriously, linux 2.4 is really not what should be used on 5200er
systems nowadays and U-Boot 1.1.6 is from 2nd November 2006.  From where
exactly do you get the idea that those versions are "latest versions"?

Moreover if you need USB, we strongly recommend not to use linux 2.4
anyway as the USB stack in the kernel was re-implemented for 2.6 and
works a lot besser nowadays.

Note however that when you change to a current 2.6 kernel, you will need
to at least be aware of the arch=ppc -> arch=powerpc change.  A document
on our ftp server[1] gives a short intro here.


> Has anyone an idea why usb not works fine?

Well, in general USB is a major source of headaches, but in this
specific instance the age of the used software may explain a lot.


[1] ftp://ftp.denx.de/pub/linux/images/README.ppc-powerpc-transition

Computer scientists do it depth-first.
DENX Software Engineering GmbH,      MD: Wolfgang Denk & Detlev Zundel
HRB 165235 Munich,  Office: Kirchenstr.5, D-82194 Groebenzell, Germany
Phone: (+49)-8142-66989-40 Fax: (+49)-8142-66989-80 Email: dzu at denx.de

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