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

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  

quoted

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  

quoted

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

As you said, the MDIO bus looks like well. If the PHY address it is right,
You can read the PHY ID from PHY. What is the PHY ID you read?

Please check the hardware status

1) 8540 hardware reset configuration for GMII interface;
Make sure it is GMII interface.

2) MARVELL 88E1111 configuration and GMII interface connection.
You can reference the 8540 ref board.
 
3)TSEC and PHY power

4)The 125M reference clock---GTX_CLK125, This looks
well as you said.

5)The GTX_CLK for GMII transmit clock, and TX_CLK for MII transmit clock.
What speed ethernet does the TSEC  connect to? 1000Mbps or 100Mbps?

6) The RX_CLK for receive clock.

7)Of cause, need check the RX_DV and TX_EN to see if have some traffic.

-Dave