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From: Andrew Lunn <andrew@lunn.ch>
To: Sascha Hauer <s.hauer@pengutronix.de>,
	Russell King <rmk+kernel@armlinux.org.uk>
Cc: netdev@vger.kernel.org, devicetree@vger.kernel.org,
	kernel@pengutronix.de, linux-kernel@vger.kernel.org,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] net: ethernet: mvneta: add support for 2.5G DRSGMII mode
Date: Mon, 8 Jun 2020 16:57:37 +0200	[thread overview]
Message-ID: <20200608145737.GG1006885@lunn.ch> (raw)
In-Reply-To: <20200608074716.9975-1-s.hauer@pengutronix.de>

On Mon, Jun 08, 2020 at 09:47:16AM +0200, Sascha Hauer wrote:
> The Marvell MVNETA Ethernet controller supports a 2.5 Gbps SGMII mode
> called DRSGMII.
> 
> This patch adds a corresponding phy-mode string 'drsgmii' and parses it
> from DT. The MVNETA then configures the SERDES protocol value
> accordingly.
> 
> It was successfully tested on a MV78460 connected to a FPGA.

Hi Sascha

Is this really overclocked SGMII, or 2500BaseX? How does it differ
from 2500BaseX, which mvneta already supports?

Also, does comphy need extensions to support this?

      Andrew

WARNING: multiple messages have this Message-ID (diff)
From: Andrew Lunn <andrew@lunn.ch>
To: Sascha Hauer <s.hauer@pengutronix.de>,
	Russell King <rmk+kernel@armlinux.org.uk>
Cc: devicetree@vger.kernel.org, kernel@pengutronix.de,
	netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
	Thomas Petazzoni <thomas.petazzoni@bootlin.com>,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH] net: ethernet: mvneta: add support for 2.5G DRSGMII mode
Date: Mon, 8 Jun 2020 16:57:37 +0200	[thread overview]
Message-ID: <20200608145737.GG1006885@lunn.ch> (raw)
In-Reply-To: <20200608074716.9975-1-s.hauer@pengutronix.de>

On Mon, Jun 08, 2020 at 09:47:16AM +0200, Sascha Hauer wrote:
> The Marvell MVNETA Ethernet controller supports a 2.5 Gbps SGMII mode
> called DRSGMII.
> 
> This patch adds a corresponding phy-mode string 'drsgmii' and parses it
> from DT. The MVNETA then configures the SERDES protocol value
> accordingly.
> 
> It was successfully tested on a MV78460 connected to a FPGA.

Hi Sascha

Is this really overclocked SGMII, or 2500BaseX? How does it differ
from 2500BaseX, which mvneta already supports?

Also, does comphy need extensions to support this?

      Andrew

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linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2020-06-08 14:57 UTC|newest]

Thread overview: 20+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-08  7:47 [PATCH] net: ethernet: mvneta: add support for 2.5G DRSGMII mode Sascha Hauer
2020-06-08  7:47 ` Sascha Hauer
2020-06-08 14:57 ` Andrew Lunn [this message]
2020-06-08 14:57   ` Andrew Lunn
2020-06-09 12:55   ` Sascha Hauer
2020-06-09 12:55     ` Sascha Hauer
2020-06-09 13:12     ` Andrew Lunn
2020-06-09 13:12       ` Andrew Lunn
2020-06-09 13:14       ` Sascha Hauer
2020-06-09 13:14         ` Sascha Hauer
2020-06-08 16:08 ` Russell King - ARM Linux admin
2020-06-08 16:08   ` Russell King - ARM Linux admin
2020-06-09 12:11   ` Sascha Hauer
2020-06-09 12:11     ` Sascha Hauer
  -- strict thread matches above, loose matches on Subject: below --
2017-01-23 14:22 Jan Luebbe
2017-01-23 18:18 ` Andrew Lunn
     [not found]   ` <20170123181836.GO10895-g2DYL2Zd6BY@public.gmane.org>
2017-01-24  8:34     ` Jan Lübbe
2017-01-24 13:19       ` Andrew Lunn
     [not found] ` <20170123142206.5390-1-jlu-bIcnvbaLZ9MEGnE8C9+IrQ@public.gmane.org>
2017-01-25 17:38   ` David Miller
     [not found]     ` <20170125.123806.790914338952471404.davem-fT/PcQaiUtIeIZ0/mPfg9Q@public.gmane.org>
2017-01-26  8:17       ` Jan Lübbe

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