Thread (2 messages) 2 messages, 2 authors, 2008-05-29

RE: USB @ MPC834x

From: Li Yang <hidden>
Date: 2008-05-29 13:12:58

-----Original Message-----
From: Andre Schwarz [mailto:andre.schwarz@matrix-vision.de]=20
Sent: Thursday, May 29, 2008 5:51 PM
To: Wood Scott; Li Yang
Cc: linux-ppc list
Subject: USB @ MPC834x
=20
Scott, Li,
=20
I'm sorry to bother you again ... but after bringing up all=20
parts of my
MPC8343 based board the not working USB is the last pending problem.
Actually I'm running on 2.6.25 with a custom board.
=20
Since USB is different for MPC8349/7/3 (depending on package) there
_could_ be a configuration problem.
Maybe you can help me out or give some hints at last.
=20
Situation:
MPC8343A with ULPI-PHY (USB3300 from SMSC) connected the same=20
way as on
the Freescale "MPC8349EA_MDS_PB-TBGA" Board, i.e. using ULPI=20
mode of the
USB dual role module.
=20
=20
Do you know if this PHY has ever been running on any Freescale board ?
Yes, this PHY is used on several reference boards.
Do you know of _any_ MPC8343 based board running USB with an OTG PHY ?
Or has it always been a 8349 thus having both ports available ?
=20
=20
There are quite a few things that make me wonder :
=20
Regarding to MPC8343EA manual I only have DR_D0..D7 pins available for
the DualRole module.
The port is labeled "Port1" - it's the only one that is bonded inside
the small package.
=20
On the Freescale schematics the pins DR_D0..D7 are labeld "Port0".
There is some confusion between the board port and chip port.  But as =
MPC8343/7/9 share the same UM, it should be the same as 8349.

- Leo
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