linux-kernel - Re: [PATCH net-next 2/2] net: phy: dp83td510: Add support for the DP83TD510 Ethernet PHY

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Message-ID: <4add1229-ad74-48e9-064d-e12d62ecc574@ti.com>
Date:   Mon, 19 Oct 2020 17:04:19 -0500
From:   Dan Murphy <dmurphy@...com>
To:     Andrew Lunn <andrew@...n.ch>
CC:     <davem@...emloft.net>, <f.fainelli@...il.com>,
        <hkallweit1@...il.com>, <netdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH net-next 2/2] net: phy: dp83td510: Add support for the
 DP83TD510 Ethernet PHY

Andrew

On 10/19/20 4:55 PM, Andrew Lunn wrote:
> On Mon, Oct 19, 2020 at 04:33:18PM -0500, Dan Murphy wrote:
>> Andrew
>>
>> On 10/16/20 5:02 PM, Andrew Lunn wrote:
>>> On Thu, Oct 08, 2020 at 11:23:47AM -0500, Dan Murphy wrote:
>>>> The DP83TD510E is an ultra-low power Ethernet physical layer transceiver
>>>> that supports 10M single pair cable.
>>> Hi Dan
>>>
>>> I think you are going to have to add
>>> ETHTOOL_LINK_MODE_10baseT1_Full_BIT? We already have 100T1 and 1000T1,
>>> but not 10T1 :-(
>> The data sheet says 10baseT1L.  Which is not there either and seems to be
>> the latest 802.3cg spec and has a greater max distance and used for IoT and
>> Automotive.
> Hi Dan
>
> Do you know anything about interropibility? Can a T1 and a T1L talk to
> each other, if suitably close? I'm wondering if this device should say
> it is both T1 and T1L? Or just T1L?

I personally don't know about interoperability my tests were T1L to T1L 
but I forwarded these questions to my HW PHY team.

Dan

>     Andrew