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From: Florian Fainelli <f.fainelli@gmail.com>
To: "René van Dorst" <opensource@vdorst.com>,
	sean.wang@mediatek.com, linux@armlinux.org.uk,
	davem@davemloft.net, matthias.bgg@gmail.com, andrew@lunn.ch,
	vivien.didelot@gmail.com
Cc: frank-w@public-files.de, netdev@vger.kernel.org,
	linux-mediatek@lists.infradead.org, linux-mips@vger.kernel.org
Subject: Re: [PATCH RFC net-next 4/5] dt-bindings: net: dsa: mt7530: Add mediatek,ephy-handle to isolate ext. phy
Date: Mon, 24 Jun 2019 14:56:50 -0700	[thread overview]
Message-ID: <e6175753-eb99-63e5-767e-f82becbf8d1a@gmail.com> (raw)
In-Reply-To: <20190624145251.4849-5-opensource@vdorst.com>

On 6/24/19 7:52 AM, René van Dorst wrote:
> On some platforum the external phy can only interface to the port 5 of the
> switch because the RGMII TX and RX lines are swapped. But it still can be
> useful to use the internal phy of the switch to act as a WAN port which
> connectes to the 2nd GMAC. This gives WAN port dedicated bandwidth to
> the SOC. This increases the LAN and WAN routing.
> 
> By adding the optional property mediatek,ephy-handle, the external phy
> is put in isolation mode when internal phy is connected to 2nd GMAC via
> phy-handle property.

Most platforms we have seen so far implement this logic with a mdio-mux,
can you see if that is possible here? stmmac has plenty of examples like
those.
-- 
Florian

  reply	other threads:[~2019-06-24 21:57 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-24 14:52 [PATCH RFC net-next 0/5] net: dsa: MT7530: Convert to PHYLINK and add support for port 5 René van Dorst
2019-06-24 14:52 ` [PATCH RFC net-next 1/5] net: dsa: mt7530: Convert to PHYLINK API René van Dorst
2019-06-24 15:39   ` Russell King - ARM Linux admin
2019-06-25 11:31     ` René van Dorst
2019-06-25 12:10       ` Russell King - ARM Linux admin
2019-06-25 18:37         ` Daniel Santos
2019-06-25 19:02           ` Andrew Lunn
2019-06-25 19:02             ` Andrew Lunn
2019-06-25 19:27             ` Daniel Santos
2019-06-25 20:41               ` Andrew Lunn
2019-06-25 21:07                 ` René van Dorst
2019-06-25 21:21                 ` Russell King - ARM Linux admin
2019-06-27 19:09                 ` Daniel Santos
2019-06-27 19:28                   ` Andrew Lunn
2019-06-28  7:16                     ` Daniel Santos
2019-06-25 21:13             ` Russell King - ARM Linux admin
2019-06-25 20:24     ` Vladimir Oltean
2019-06-25 21:53       ` Russell King - ARM Linux admin
2019-06-25 21:53         ` Russell King - ARM Linux admin
2019-06-25 22:14         ` Vladimir Oltean
2019-06-25 22:57           ` Russell King - ARM Linux admin
2019-06-25 23:10             ` Vladimir Oltean
2019-06-25 23:13               ` Vladimir Oltean
2019-06-26  1:52                 ` Andrew Lunn
2019-06-26  7:41               ` Russell King - ARM Linux admin
2019-06-26  8:46                 ` Vladimir Oltean
2019-06-26  9:04                   ` Russell King - ARM Linux admin
2019-06-25  0:58   ` Daniel Santos
2019-06-25 11:43     ` René van Dorst
2019-06-24 14:52 ` [PATCH RFC net-next 2/5] dt-bindings: net: dsa: mt7530: Add support for port 5 René van Dorst
2019-06-24 14:52 ` [PATCH RFC net-next 3/5] " René van Dorst
2019-06-24 14:52 ` [PATCH RFC net-next 4/5] dt-bindings: net: dsa: mt7530: Add mediatek,ephy-handle to isolate ext. phy René van Dorst
2019-06-24 21:56   ` Florian Fainelli [this message]
2019-06-25  9:30     ` René van Dorst
2019-06-25 19:16       ` Florian Fainelli
2019-06-24 14:52 ` [PATCH RFC net-next 5/5] net: dsa: mt7530: Add mediatek,ephy-handle to isolate external phy René van Dorst
2019-06-24 21:52   ` Andrew Lunn
2019-06-25  0:22     ` Daniel Santos
2019-06-25  8:24     ` René van Dorst

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