LS1046 custom board without CPLD, how to check SFP+ status

[changjake]

Hi,

I'm developing with LS1046 custom board without CPLD.

In LS1046A Reference Design Board Reference Manual 3.1.20,

SFP+ module status register is.

How does it get status information?

As no CPLD in my custom board, I like to make kernel driver to get the status.

Is it possible?

T.I.A.

Jake.

[ufedor]

The CPLD registers are REG_SFP_TXEN (controls the XFI1_TX_DISABLE SFP+ signal) and REG_SFP_STATUS (by design can show levels of several SFP+ status signals - actually not implemented in CPLD).

Control for the XFI1_TX_DISABLE could be implemented by a GPIO signal.

[changjake]

Hi ufedor,

So is there no way to check SFP+ status(REG_SFP_STATUS)?

What about using drivers/net/phy/sfp.c in linux kernel?

Regards,
Jake.