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From: Benjamin Beckmeyer <beb@eks-engel.de>
To: Andrew Lunn <andrew@lunn.ch>
Cc: <netdev@vger.kernel.org>
Subject: Re: DSA with MV88E6321 and imx28
Date: Thu, 6 Jun 2019 15:47:06 +0200	[thread overview]
Message-ID: <e01b05e4-5190-1da6-970d-801e9fba6d49@eks-engel.de> (raw)
In-Reply-To: <20190606133501.GC19590@lunn.ch>


On 06.06.19 15:35, Andrew Lunn wrote:
>> >From our hardware developer I know now that we are using a "mini" SFF 
>> which has no i2c eeprom. 
> O.K. Does this mini SFF have LOS, TX-Disable, etc? Are these connected
> to GPIOs? I assume the SFF is fibre? And it needs the SERDES to speak
> 1000BaseX, not SGMII?

Nope, no LOS no tx-disable etc. Yeah, the SFF is fibre. Exactly, it needs 
SERDES to speak 1000BaseX.

>
>> Switch				|	external
>> Port 0 - internal serdes 0x0c --|-------Mini SFF 1x8 Transceiver
>> 				|
>> Port 0 - internal serdes 0x0d --|-------Mini SFF 1x8 Transceiver
>> 				|
>> Port 2 ----------RGMII----------|-------KSZ9031 PHY 0x02(strap)--Transceiver
>> 				|
>> Port 3 - internal PHY 0x03 -----|-------Transceiver
>> 				|
>> Port 3 - internal PHY 0x04 -----|-------Transceiver
>> 				|			
>> Port 5 - CPU-Port RMII ---------|-------CPU
>> 				|
>> Port 6 ----------RGMII----------|-------KSZ9031 PHY 0x06(strap)--Transceiver
> So the current state is that just the SFF ports are not working? All
> the copper PHYs are O.K.
>
>     Andrew
>
The external copper PHYs are still not working properly, but if I set them to
fixed-link, I see data coming in with I start tcpdump on my device. Just with
some odd header but I'm not that far with DSA-tags and these stuff.
 
Just at that moment we found out that we have a problem with our MDC timing.
After we fixed that the external PHY registers could be read correctly over SMI
Command registers. But I haven't tested it with the DSA driver yet.


  reply	other threads:[~2019-06-06 13:47 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-04 13:07 DSA with MV88E6321 and imx28 Benjamin Beckmeyer
2019-06-04 13:50 ` Andrew Lunn
2019-06-05  4:52   ` Benjamin Beckmeyer
2019-06-05 12:24     ` Andrew Lunn
2019-06-05 13:12       ` Benjamin Beckmeyer
2019-06-05 13:31         ` Andrew Lunn
2019-06-05 13:54           ` Benjamin Beckmeyer
2019-06-05 18:47             ` Andrew Lunn
2019-06-06  9:39               ` Benjamin Beckmeyer
     [not found]               ` <c27f2b9b-90d7-db63-f01c-2dfaef7a014b@eks-engel.de>
     [not found]                 ` <20190606122437.GA20899@lunn.ch>
2019-06-06 13:27                   ` Benjamin Beckmeyer
2019-06-06 13:35                     ` Andrew Lunn
2019-06-06 13:47                       ` Benjamin Beckmeyer [this message]
2019-06-06 13:59                         ` Andrew Lunn
2019-06-07  9:41                           ` Benjamin Beckmeyer
2019-06-07 12:47                             ` Andrew Lunn
2019-06-11  7:36                               ` Benjamin Beckmeyer
2019-06-11 12:19                                 ` Andrew Lunn
2019-06-11 13:09                                   ` Benjamin Beckmeyer
2019-06-11 13:27                                     ` Andrew Lunn
2019-06-12  9:05                                       ` Benjamin Beckmeyer

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