From mboxrd@z Thu Jan  1 00:00:00 1970
From: Matthew Lear <matt@bubblegen.co.uk>
Date: Tue, 01 Sep 2009 16:39:50 +0100
Subject: [U-Boot] Obtaining board specific phy diagnostics
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Matthew Lear wrote:
> Hi all,
> 
> Is there a common mechanism to hook in board specific ethernet phy
> commands? For example, I'd like to hook in the ability to read the TDR
> characteristics of the ethernet cable connected to my board. I know the
> phy on my board supports this so I was planning on hooking it into the
> mii command set somehow.
> 
> Currently, the ethernet set up code registers phy read and write
> routines, but that is all. Is there a recognised method / approach to
> add such board specific commands/features into an existing 'common' command?
> 
> Cheers,
> --  Matt
> 

A board specific command is fine, so using U_BOOT_CMD.
--  Matt