fast ethernet LXT972A support
I noticed that only LXT970 and 971 are supported in the lastest kernel distribution from DENX. But the comments in fec.c say "includes support for following PHYs: QS6612, LXT970, LXT971/2". Does it mean that LXT972 can use 971's driver? If not, basically what kind of modification is needed? Thanks.
- Shawn.
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Quoted 4 lines
for following PHYs: QS6612, LXT970, LXT971/2". Does it mean that LXT972 can use 971's driver? If not, basically what kind of modification is needed? Thanks.
After looking into LXT971/972 datasheets, I believe LXT972 can use 971's driver. Thanks.
- Shawn.
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Quoted 6 lines · In message <[email protected]> you wrote:
I noticed that only LXT970 and 971 are supported in the lastest kernel distribution from DENX. But the comments in
fec.csay "includes support for following PHYs: QS6612, LXT970, LXT971/2". Does it mean that LXT972 can use 971's driver? If not, basically what kind of modification is needed? Thanks.
Ummm.... you must be looking in the wrong place; our kernel version supports AMD79C874, LXT970, LXT971, QS6612, DP83843, and DP83846A on MPC8xx processors, and AMD79C873, LXT970, LXT971, QS6612 on MPC8260 processors.
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: [email protected] The software required `Windows 95 or better', so I installed Linux.
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Quoted 3 lines
Quoted 3 lines
distribution from DENX. But the comments in
fec.csay "includes support for following PHYs: QS6612, LXT970, LXT971/2". Does it mean that LXT972
Well, the first several lines of comments says that. ;)
Quoted 3 lines
Ummm.... you must be looking in the wrong place; our kernel version supports AMD79C874, LXT970, LXT971, QS6612, DP83843, and DP83846A on MPC8xx processors, and AMD79C873, LXT970, LXT971, QS6612 on MPC8260
Well, the version I got is linux-2.4.4-08-09. And I'm sure there are no DP83843 and DP83846A support. So you must have made progress in supporting new PHYs. :) The file I'm looking at is arch/ppc/8xx_io/fec.c.
- Shawn.
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Quoted 8 lines · In message <[email protected]> you wrote:
Quoted 4 lines
Ummm.... you must be looking in the wrong place; our kernel version supports AMD79C874, LXT970, LXT971, QS6612, DP83843, and DP83846A on MPC8xx processors, and AMD79C873, LXT970, LXT971, QS6612 on MPC8260
Well, the version I got is linux-2.4.4-08-09. And I'm sure there are no DP83843 and DP83846A support. So you must have made progress in supporting new PHYs. :) The file I'm looking at is
arch/ppc/8xx_io/fec.c.
That's what I was looking at, too. But you mentioned "latest kernel", and I have here:
----------------------------
revision 1.20
date: 2002/08/11 11:09:33; author: wd; state: Exp; lines: +369 -42
1. Added support for PHY DP83843BVJE.
2. Added support for PHY DP83846A.
3. Added a timer callback to periodically probe the DP83846A (or any other chip, it is easy to adapt) for link changes. The delays are hard-coded, though. Someone could add some configuration parameters for it, of course! The periods depend on the link state:
- 1 second when the link is up.
- 100ms when the link is down.
4. Added the standard IOCTL support to manipulate the PHY registers.
5. A bugfix (in fec_restart(), if the flag 'tx_full' is set, it must be cleared, and the network interface queue needs to be awakened.)
Based on patch by Jean-Denis Boyer <[email protected]>, 22 Mar 2002 See http://lists.linuxppc.org/linuxppc-embedded/200203/msg00200.html
----------------------------
For me, latest == top of CVS :-)
Wolfgang Denk
--
Software Engineering: Embedded and Realtime Systems, Embedded Linux
Phone: (+49)-8142-4596-87 Fax: (+49)-8142-4596-88 Email: [email protected] The greatest threat towards future is indifference.
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Hi,
I'm using the LXT971 settings for an LXT972 on a 857 board and It's running fine...
Regards, Stephan
(see my response to "MPC857T FEC/MII failure" :o))
Quoted 10 lines
-----Original Message-----
From: [email protected] [mailto:[email protected]]On Behalf Of Xiaogeng (Shawn) Jin
Sent: Donnerstag, 22. August 2002 22:25
To: [email protected]
Subject: fast ethernet LXT972A support
Quoted 11 lines
I noticed that only LXT970 and 971 are supported in the lastest kernel distribution from DENX. But the comments in
fec.csay "includes support for following PHYs: QS6612, LXT970, LXT971/2". Does it mean that LXT972 can use 971's driver? If not, basically what kind of modification is needed? Thanks.- Shawn.
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/