From: John Rama <john.rama01@gmail.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: netdev@vger.kernel.org
Subject: Re: dsa: how to set external PHY address of slave MDIO bus
Date: Fri, 21 Dec 2018 18:23:50 -0500 [thread overview]
Message-ID: <5C1D7606.60606@gmail.com> (raw)
In-Reply-To: <20181221095632.GC5023@lunn.ch>
Hi Andrew,
>> Use a phy-handle in the port properties.
Thanks !!
John
On 2018/12/21 4:56, Andrew Lunn wrote:
> On Thu, Dec 20, 2018 at 08:26:56PM -0500, John Rama wrote:
>> Hi, Guys,
>>
>> I have one question. I'm working following configuration, and implementing a device driver.
>> Basically, port 1-7 is working fine. I'm now having problem on port8.
>>
>> - System
>> - i.MX6 and Marvel 88q5050 Switch(PHY addr is 0x10)
>> - port1-5 has integrated PHY
>> - port7 is connected to Marvel 88e1510 PHY(PHY addr is 0x1)
>> - port8 is connected to Marvel 88e1510 PHY(PHY addr is 0x0),
>> but it's the slave of MDIO bus whose master is the switch.
>>
>> 0x10
>> +------------+ +-----------------+
>> | | | Marvel 88q5050 |
>> | | RGMII | port1 |
>> | IMX6 +---------+ port6 |
>> | | | port2 |
>> | | MDIO | |
>> | +-+-------+ port3 |
>> | | | | |
>> +------------+ | | port4 |
>> | | |
>> +-+-+ | port5 | +---+
>> | |SGMII| |RGMII| |
>> |PHY|-----| port7 port8 +-----+PHY+
>> | | | |MDIO | |
>> +---+ | +-----+ |
>> Marvel 88e1510 +-----------------+ +---+
>> 0x1 Marvel 88e1510
>> 0x0
>>
>> - Question
>> In the system above, how should we tell DSA driver the PHY address of the PHY which is connected to port8 ?
>
> Hi John
>
> Use a phy-handle in the port properties.
>
> Andrew
>
prev parent reply other threads:[~2018-12-21 23:23 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-12-21 1:26 dsa: how to set external PHY address of slave MDIO bus John Rama
2018-12-21 9:56 ` Andrew Lunn
2018-12-21 23:23 ` John Rama [this message]
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