From: Quentin Schulz <quentin.schulz@bootlin.com>
To: Andrew Lunn <andrew@lunn.ch>
Cc: alexandre.belloni@bootlin.com, ralf@linux-mips.org,
paul.burton@mips.com, jhogan@kernel.org, robh+dt@kernel.org,
mark.rutland@arm.com, davem@davemloft.net, f.fainelli@gmail.com,
allan.nielsen@microchip.com, linux-mips@linux-mips.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
netdev@vger.kernel.org, thomas.petazzoni@bootlin.com,
antoine.tenart@bootlin.com
Subject: Re: [PATCH net-next 2/7] net: phy: mscc: add support for VSC8584 PHY
Date: Fri, 14 Sep 2018 15:29:30 +0200 [thread overview]
Message-ID: <20180914132930.fphdm3dm2incetbq@qschulz> (raw)
In-Reply-To: <20180914131846.GG14865@lunn.ch>
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Hi Andrew,
On Fri, Sep 14, 2018 at 03:18:46PM +0200, Andrew Lunn wrote:
> > Most of the init sequence of a PHY of the package is common to all PHYs
> > in the package, thus we use the SMI broadcast feature which enables us
> > to propagate a write in one register of one PHY to all PHYs in the
> > package.
>
> Hi Quinten
>
> Could you say a bit more about the broadcast. Does the SMI broadcast
> go to all PHY everywhere on an MDIO bus, or only all PHYs within one
> package? I'm just thinking about the case you need two of these
> packages to cover 8 switch ports.
>
Ah sorry, that wasn't very explicit. That's a feature on the PHY side so
my wildest guess is that it wouldn't impact any other PHY outside of
this package. Affecting any other PHY on the bus is counter-intuitive to
me but I'll ask the HW engineers for confirmation.
Thanks,
Quentin
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next prev parent reply other threads:[~2018-09-14 13:29 UTC|newest]
Thread overview: 31+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-09-14 9:44 [PATCH net-next 0/7] add support for VSC8584 and VSC8574 Microsemi quad-port PHYs Quentin Schulz
2018-09-14 9:44 ` [PATCH net-next 1/7] dt-bindings: net: vsc8531: add two additional LED modes for VSC8584 Quentin Schulz
2018-09-14 13:11 ` Andrew Lunn
2018-09-15 21:34 ` Florian Fainelli
2018-09-14 9:44 ` [PATCH net-next 2/7] net: phy: mscc: add support for VSC8584 PHY Quentin Schulz
2018-09-14 13:18 ` Andrew Lunn
2018-09-14 13:29 ` Quentin Schulz [this message]
2018-09-14 16:28 ` Quentin Schulz
2018-09-14 16:58 ` Andrew Lunn
2018-10-01 9:16 ` Quentin Schulz
2018-09-14 17:27 ` Andrew Lunn
2018-10-01 9:15 ` Quentin Schulz
2018-09-14 9:44 ` [PATCH net-next 3/7] net: phy: mscc: split config_init in two functions for VSC8584 Quentin Schulz
2018-09-14 17:57 ` Florian Fainelli
2018-10-01 9:07 ` Quentin Schulz
2018-09-14 9:44 ` [PATCH net-next 4/7] net: phy: mscc: add support for VSC8574 PHY Quentin Schulz
2018-09-14 20:26 ` Florian Fainelli
2018-10-04 9:45 ` Quentin Schulz
2018-10-04 12:53 ` Quentin Schulz
2018-09-14 9:44 ` [PATCH 5/7] MIPS: mscc: ocelot: add GPIO4 pinmuxing DT node Quentin Schulz
2018-09-14 14:54 ` Alexandre Belloni
2018-09-14 16:26 ` Quentin Schulz
2018-09-14 17:02 ` Andrew Lunn
2018-10-01 9:01 ` Quentin Schulz
2018-09-14 18:02 ` Alexandre Belloni
2018-10-01 9:02 ` Quentin Schulz
2018-09-14 9:44 ` [PATCH 6/7] MIPS: mscc: add DT for Ocelot PCB120 Quentin Schulz
2018-09-14 14:58 ` Alexandre Belloni
2018-09-14 9:44 ` [PATCH 7/7] MIPS: mscc: add PCB120 to the ocelot fitImage Quentin Schulz
2018-09-14 15:00 ` Alexandre Belloni
2018-09-20 21:38 ` [PATCH net-next 0/7] add support for VSC8584 and VSC8574 Microsemi quad-port PHYs Linus Walleij
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