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