linux-kernel - [RFC PATCH net-next 0/5] net: macb: Add versal2 10GBE device support

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Message-ID: <20241009053946.3198805-1-vineeth.karumanchi@amd.com>
Date: Wed, 9 Oct 2024 11:09:41 +0530
From: Vineeth Karumanchi <vineeth.karumanchi@....com>
To: <nicolas.ferre@...rochip.com>, <claudiu.beznea@...on.dev>,
	<davem@...emloft.net>, <edumazet@...gle.com>, <kuba@...nel.org>,
	<pabeni@...hat.com>, <robh@...nel.org>, <krzk+dt@...nel.org>,
	<conor+dt@...nel.org>, <linux@...linux.org.uk>, <andrew@...n.ch>
CC: <vineeth.karumanchi@....com>, <netdev@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>, <git@....com>
Subject: [RFC PATCH net-next 0/5] net: macb: Add versal2 10GBE device support

10GBE IP is a HighSpeed mac that supports 1G, 2.5G, 5G, and 10G speeds
and has two PCS. It has USX PCS for higher speed and SGMII PCS for
lower speed transmission.

Auto-neg is disabled for this IP in versal2 device, hence "fixed-link"
at the specified speed is used. It is an expansion of the fixed-line speed
at 10G currently being implemented. These modifications are tested using
a HW board configuration without a PHY with QSFP.

The IP contains MDIO lines, and the goal is to use auto-neg in the PHY
and set the agreed-upon speed in the MAC. These adjustments will be made
in the following phase after the extra hardware is available.

Vineeth Karumanchi (5):
  dt-bindings: net: macb: Add support for versal2 10gbe device
  net: macb: Add versal2 10GBE device support
  net: macb: Update USX_CONTROL reg's bitfields and constants.
  net: macb: Configure High Speed Mac for given speed.
  net: macb: Get speed and link status runtime.

 .../devicetree/bindings/net/cdns,macb.yaml    |  1 +
 drivers/net/ethernet/cadence/macb.h           | 13 +++
 drivers/net/ethernet/cadence/macb_main.c      | 84 +++++++++++++++----
 3 files changed, 84 insertions(+), 14 deletions(-)

-- 
2.34.1