netdev - [PATCH] Documentation: devicetree: Add PHY no lane swap binding

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <1486223267-11875-1-git-send-email-lukma@denx.de>
Date:   Sat,  4 Feb 2017 16:47:47 +0100
From:   Lukasz Majewski <lukma@...x.de>
To:     Rob Herring <robh+dt@...nel.org>,
        Mark Rutland <mark.rutland@....com>,
        "David S. Miller" <davem@...emloft.net>,
        Florian Fainelli <f.fainelli@...il.com>,
        jbrunet <jbrunet@...libre.com>, Andrew Lunn <andrew@...n.ch>
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        netdev@...r.kernel.org,
        Uwe Kleine-König 
        <u.kleine-koenig@...gutronix.de>,
        Martin Blumenstingl <martin.blumenstingl@...glemail.com>,
        Jon Mason <jon.mason@...adcom.com>,
        Fabio Estevam <fabio.estevam@....com>,
        Lukasz Majewski <lukma@...x.de>
Subject: [PATCH] Documentation: devicetree: Add PHY no lane swap binding

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@...x.de>
---
 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..5e25bc9 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 binding 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