netdev - [RFC PATCH 0/2] DP83867/DP83869 Ethernet PHY workaround/fix

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Message-ID: <20230425054429.3956535-1-s-vadapalli@ti.com>
Date:   Tue, 25 Apr 2023 11:14:27 +0530
From:   Siddharth Vadapalli <s-vadapalli@...com>
To:     <andrew@...n.ch>, <hkallweit1@...il.com>, <linux@...linux.org.uk>,
        <davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
        <pabeni@...hat.com>
CC:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-arm-kernel@...ts.infradead.org>, <srk@...com>,
        <s-vadapalli@...com>
Subject: [RFC PATCH 0/2] DP83867/DP83869 Ethernet PHY workaround/fix

Hello,

This series adds a workaround for the DP83867 Ethernet PHY to fix packet
errors observed with short cables, when both ends of the link use the
DP83867 Ethernet PHY. This issue is described in Section 3.8 at [0].

Also, for the DP83869 Ethernet PHY which supports both RGMII and MII
modes of operation, support is added to allow switching to MII mode by
configuring the OP_MODE_DECODE Register in Section 9.6.1.65 at [1].

Regards,
Siddharth.

---
[0]: https://www.ti.com/lit/an/snla246b/snla246b.pdf
[1]: https://www.ti.com/lit/ds/symlink/dp83869hm.pdf

Grygorii Strashko (2):
  net: phy: dp83867: add w/a for packet errors seen with short cables
  net: phy: dp83869: fix mii mode when rgmii strap cfg is used

 drivers/net/phy/dp83867.c | 15 ++++++++++++++-
 drivers/net/phy/dp83869.c |  5 ++++-
 2 files changed, 18 insertions(+), 2 deletions(-)

-- 
2.25.1