Fw: MPHY supported in mpc8260sar

Zoran Stojsavljevic zoransto at dkts.co.yu
Wed Aug 18 17:31:34 EST 2004

I enhanced 8260 ATM driver... now I am able to support maximum
number of PHYs by mpc8260. With up to eight priorities per each

Just an additional info... :)

Zoran Stojsavljevic
DKTS Pupin Telecom
zoransto at dkts.co.yu

----- Original Message -----
From: "Zoran Stojsavljevic" <zoransto at dkts.co.yu>
Sent: Thursday, August 05, 2004 11:09 AM
Subject: MPHY supported in mpc8260sar

> I finally achieved multiphy mpc8260sar (with some limitations). The
> driver is able to support 8 PHYs (one PHY per unique priority). The
> driver is developed out of Peter's McCormick single PHY version.
> For some unknow reason I could NOT achieve MPHY support with only
> one priority (for example highest PRIority 0). In order to make MPHY
> to work correctly I assigned a unique priority per PHY. With 8 PHYs
> the mapping looks like: PHY0/PRIO0, PHY1/PRIO1... PHY7/PRIO7, eg.
> PHYx/PRIOx, where x is in range [0..7]!
> The another limitation is that I did NOT fix the VP range, eg. I am
> using only VP0 (one VP) with different VCs, where least three (3)
> significant bits of each VC assume the selected PHY. In other words,
> I am using 8 nas interfaces, and VCs (decimal radix) from 40 (0x28)
> to 47 (0x2F), where VC 40 is attached to PHY0, VC 41 to PHY1... VC47
> to PHY7. While issuing ATM xmit command I am deriving least three
> significant bits of currently processed VC and I'm putting them to the
> COMM_INFO words (offset 0x86, field PHY#), described in section 30.14
> of MPC8260 PowerQUICC II Family Reference Manual (Revision 1, date
> 05/2003).
> If you all find this info of (some) interest, I can do the patch
> (against latest version in CVS) so we can store this limited edition
> of the MPHY version under the mpc8260sar driver project.
> ----- Original Message -----
> From: "Alex Zeffertt" <ajz at cambridgebroadband.com>
> Sent: Monday, January 26, 2004 1:41 PM
> Subject: Announcement: MPHY now supported in mpc860sar
> > Just a quick note to say that multi-phy is now supported by the
> > mpc860sar ATM driver, thanks to a patch by Rodolfo Giometti.

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/

More information about the Linuxppc-embedded mailing list