Re: does Gianfar Ethernet Controller Version 1.1 support MARVELL 88E1111?

From: Andy Fleming <redacted>
To: Guo Jaffe <redacted>
CC: Linuxppc-embedded@ozlabs.org
Subject: Re: does Gianfar Ethernet Controller Version 1.1 support MARVELL 

88E1111?

Date: Thu, 8 Jun 2006 14:25:44 -0500


On Jun 8, 2006, at 12:51, Guo Jaffe wrote:

quoted

Hi Andy,

Thank you for your information. So the driver is not the issue, but 
 better to upgraded.

I will check the board once more. The PHY doesn't work because the  
8bit bus between MAC and PHY is locked(TX_EN and RX_DV all disabled 
 from the scope's view) and also you can't see any signals exist 
at  the Magnetic side(nor LED signals). It seems that only MDC/MDIO 
and  CLOCK reference pin works. The PHY's ID must be read from 
MDC/MDIO  interface and Clocks are right showed on the scope.

But what error are you getting?  What are the symptoms of your  
problem?  The GMII interface (the 8-bit bus) is inconsequential to  
PHY configuration and management.  Only the MDC/MDIO bus is used.   
Therefore the PHY id should be quite readable.  What version of 
Linux  are you using?  Please describe what the kernel prints out 
when you  boot, and when you try to bring up the interface (assuming 
you don't  do that at boot).

Andy