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Date:   Sun, 27 Dec 2020 14:34:05 -0500
From:   Hamza Mahfooz <someguy@...ective-light.com>
To:     Russell King - ARM Linux admin <linux@...linux.org.uk>
Cc:     Heiner Kallweit <hkallweit1@...il.com>, netdev@...r.kernel.org
Subject: Re: Fwd: Solidrun ClearFog Base and Huawei MA5671A SFP

Would it not be possible to disable dying gasp (assuming I can access 
the module using some other hardware)?

On Sat, Dec 26, 2020 at 10:27 pm, Russell King - ARM Linux admin 
<linux@...linux.org.uk> wrote:
> Sorry, this will not work. The MA5671A modules are configured to use
> dying gasp on pin 7, and pin 7 is grounded on the Armada 388 Clearfog
> platforms, resulting in the module not booting.
> 
> I'm sorry, I can't recommend a module; I don't use SFP GPON modules
> myself.
> 
> On Sat, Dec 26, 2020 at 11:15:18PM +0100, Heiner Kallweit wrote:
>>  Sounds like something where you may be able to help.
>> 
>>  Heiner
>> 
>>  -------- Forwarded Message --------
>>  Subject: Solidrun ClearFog Base and Huawei MA5671A SFP
>>  Date: Sat, 26 Dec 2020 16:41:40 -0500
>>  From: Hamza Mahfooz <someguy@...ective-light.com>
>>  To: netdev@...r.kernel.org
>> 
>>  Hey, has anyone got the ClearFog (ARMADA 388 SoC) to work with the
>>  MA5671A? I've to been trying to get the ClearFog to read the 
>> MA5671A's
>>  EEPROM however it always throws the following error:
>> 
>>  > # dmesg | grep sfp
>>  > [ 4.550651] sfp sfp: Host maximum power 2.0W
>>  > [ 5.875047] sfp sfp: please wait, module slow to respond
>>  > [ 61.295045] sfp sfp: failed to read EEPROM: -6
>> 
>>  I've tried to increase the retry timeout in `/drivers/net/phy/sfp.c`
>>  (i.e. T_PROBE_RETRY_SLOW) so far, any suggestions would be 
>> appreciated.
>>  Also, I'm on kernel version 5.9.13.
>> 
>> 
>> 
> 
> --
> RMK's Patch system: https://www.armlinux.org.uk/developer/patches/
> FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!


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