From: Andrew Lunn <andrew@lunn.ch>
To: Tao Ren <taoren@fb.com>
Cc: Vladimir Oltean <olteanv@gmail.com>,
Florian Fainelli <f.fainelli@gmail.com>,
Heiner Kallweit <hkallweit1@gmail.com>,
"David S . Miller" <davem@davemloft.net>,
Arun Parameswaran <arun.parameswaran@broadcom.com>,
Justin Chen <justinpopo6@gmail.com>,
netdev <netdev@vger.kernel.org>,
lkml <linux-kernel@vger.kernel.org>,
Andrew Jeffery <andrew@aj.id.au>,
"openbmc@lists.ozlabs.org" <openbmc@lists.ozlabs.org>
Subject: Re: [PATCH net-next 2/2] net: phy: broadcom: add 1000Base-X support for BCM54616S
Date: Wed, 31 Jul 2019 04:34:17 +0200 [thread overview]
Message-ID: <20190731023417.GD9523@lunn.ch> (raw)
In-Reply-To: <885e48dd-df5b-7f08-ef58-557fc2347fa6@fb.com>
> Hi Andrew,
>
> The BCM54616S PHY on my machine is connected to a BCM5396 switch chip over backplane (1000Base-KX).
Ah, that is different. So the board is using it for RGMII to 1000Base-KX?
phy-mode is about the MAC-PHY link. So in this case RGMII.
There is no DT way to configure the PHY-Switch link. However, it
sounds like you have the PHY strapped so it is doing 1000BaseX on the
PHY-Switch link. So do you actually need to configure this?
You report you never see link up? So maybe the problem is actually in
read_status? When in 1000BaseX mode, do you need to read the link
status from some other register? The Marvell PHYs use a second page
for 1000BaseX.
Andrew
next prev parent reply other threads:[~2019-07-31 2:34 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20190730002549.86824-1-taoren@fb.com>
2019-07-30 1:32 ` [PATCH net-next 2/2] net: phy: broadcom: add 1000Base-X support for BCM54616S Vladimir Oltean
2019-07-30 4:52 ` Tao Ren
2019-07-30 10:15 ` Vladimir Oltean
2019-07-30 13:17 ` Andrew Lunn
2019-07-31 0:15 ` Tao Ren
2019-07-30 23:44 ` Tao Ren
2019-07-31 1:36 ` Andrew Lunn
2019-07-31 2:09 ` Tao Ren
2019-07-31 2:34 ` Andrew Lunn [this message]
2019-07-31 5:55 ` Tao Ren
2019-08-01 5:07 ` Tao Ren
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