[help] PHY driver : Unable to find a PHY (unknown ID?)

[Mylene Josserand]

Dear Thomas,


Le 04/01/2013 12:23, Thomas Petazzoni a écrit :
> Dear Mylene Josserand,
>
> On Fri, 4 Jan 2013 12:03:17 +0100, Mylene Josserand wrote:
>
>>> Good to see some developers from Toulouse using Barebox! I'm close, in
>>> Colomiers.
>>
>> Yes ! We are neighbour :)
>
> Indeed :)
>
>> Free Electrons, I know you by name. And the kernel sources on your web
>> site help me a lot !
>
> Good to know this is useful.
>
>>> Which board are you targeting?
>>
>> It is a "home-made" board with a iMX27.
>
> Ok.
>
>> Hum, I did not configured it myself. I used a previous configuration of
>> the board which was :
>> "
>> static struct fec_platform_data fec_info = {
>> 	.xcv_type = MII100,
>> 	.phy_addr = 1,
>> };"
>>
>> How can I know which address I need to put ?
>
> Look at chapter "4.11 PHY Address strapping and LED Output Polarity
> Selection" of the LAN8700 manual. It says the PHY address is selected
> according to the value on pins PHYAD[0:4] during PHY reset. So you
> should check your board schematics and see how these pins are wired to
> find out what is the PHY address.

Ok, thank you for the explanation.
I have checked and it is the good phy address.

I will search deeper in the code the possible problem but if you have an 
idea of it, do not hesitate !

>
> Best regards,
>
> Thomas

Best regards,

-- 
Mylène JOSSERAND