Re: [PATCH v2] lxt PHY: Support for the buggy LXT973 rev A2

Le 10/09/2012 20:17, Lutz Jaenicke a écrit :

On Mon, Sep 10, 2012 at 05:45:49PM +0200, Christophe Leroy wrote:

quoted

This patch adds proper handling of the buggy revision A2 of LXT973 phy, adding
precautions linked to ERRATA Item 4:

Item 4: MDIO Interface and Repeated Polling
Problem: Repeated polling of odd-numbered registers via the MDIO interface
	randomly returns the contents of the previous even register.
Implication: Managed applications may not obtain the correct register contents
	when a particular register is monitored for device status.
Workaround: None.
Status: This erratum has been previously fixed (in rev A3)

Hmm. Were did you get the hardware from? We have been using LXT973 in
our products and the A2 was replaced by A3 in 2003.

Best regards,
	Lutz

They are custom boards that my company manufactures. Most boards 
manufactured before 2006 or 2007 have this buggy chip.

Regards
Christophe