From: Lukasz Majewski <lukma@denx.de>
To: Rob Herring <robh+dt@kernel.org>,
Mark Rutland <mark.rutland@arm.com>,
"David S. Miller" <davem@davemloft.net>,
Florian Fainelli <f.fainelli@gmail.com>,
jbrunet <jbrunet@baylibre.com>, Andrew Lunn <andrew@lunn.ch>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
netdev@vger.kernel.org,
"Uwe Kleine-König" <u.kleine-koenig@pengutronix.de>,
"Martin Blumenstingl" <martin.blumenstingl@googlemail.com>,
"Jon Mason" <jon.mason@broadcom.com>,
"Fabio Estevam" <fabio.estevam@nxp.com>,
"Lukasz Majewski" <lukma@denx.de>
Subject: [PATCH v3 1/3] Documentation: devicetree: Add PHY no lane swap binding
Date: Tue, 7 Feb 2017 06:21:34 +0100 [thread overview]
Message-ID: <1486444894-12841-1-git-send-email-lukma@denx.de> (raw)
Add the documentation to avoid PHY lane swapping. This is a boolean
entry to notify the phy device drivers that the TX/RX lanes NO need
to be swapped.
The use case for this binding mostly happens after wrong HW
configuration of PHY IC during bootstrap.
Signed-off-by: Lukasz Majewski <lukma@denx.de>
---
Changes for v3:
- Change binding to property
---
Documentation/devicetree/bindings/net/phy.txt | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/net/phy.txt b/Documentation/devicetree/bindings/net/phy.txt
index fb5056b..b558576 100644
--- a/Documentation/devicetree/bindings/net/phy.txt
+++ b/Documentation/devicetree/bindings/net/phy.txt
@@ -39,6 +39,10 @@ Optional Properties:
- enet-phy-lane-swap: If set, indicates the PHY will swap the TX/RX lanes to
compensate for the board being designed with the lanes swapped.
+- enet-phy-lane-no-swap: If set, indicates that PHY will disable swap of the
+ TX/RX lanes. This property allows the PHY to work correcly after e.g. wrong
+ bootstrap configuration caused by issues in PCB layout design.
+
- eee-broken-100tx:
- eee-broken-1000t:
- eee-broken-10gt:
--
2.1.4
next reply other threads:[~2017-02-07 5:21 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-07 5:21 Lukasz Majewski [this message]
2017-02-07 13:02 ` [PATCH v3 1/3] Documentation: devicetree: Add PHY no lane swap binding Andrew Lunn
2017-02-07 18:59 ` David Miller
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