netdev - [PATCH net-next 0/1] Add BASE-T1 PHY support

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Message-ID: <20190815153209.21529-1-christian.herber@nxp.com>
Date:   Thu, 15 Aug 2019 15:32:27 +0000
From:   Christian Herber <christian.herber@....com>
To:     "davem@...emloft.net" <davem@...emloft.net>
CC:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        Christian Herber <christian.herber@....com>
Subject: [PATCH net-next 0/1] Add BASE-T1 PHY support

This patch adds basic support for BASE-T1 PHYs in the framework.
BASE-T1 PHYs main area of application are automotive and industrial.
BASE-T1 is standardized in IEEE 802.3, namely
- IEEE 802.3bw: 100BASE-T1
- IEEE 802.3bp 1000BASE-T1
- IEEE 802.3cg: 10BASE-T1L and 10BASE-T1S

There are no products which contain BASE-T1 and consumer type PHYs like
1000BASE-T. However, devices exist which combine 100BASE-T1 and 1000BASE-T1
PHYs with auto-negotiation.

The intention of this patch is to make use of the existing Clause 45 functions.
BASE-T1 adds some additional registers e.g. for aneg control, which follow a
similiar register layout as the existing devices. The bits which are used in
BASE-T1 specific registers are the same as in basic registers, thus the
existing functions can be resued, with get_aneg_ctrl() selecting the correct
register address.

The current version of ethtool has been prepared for 100/1000BASE-T1 and works
with this patch. 10BASE-T1 needs to be added to ethtool.

Christian Herber (1):
  Added BASE-T1 PHY support to PHY Subsystem

 drivers/net/phy/phy-c45.c    | 113 +++++++++++++++++++++++++++++++----
 drivers/net/phy/phy-core.c   |   4 +-
 include/uapi/linux/ethtool.h |   2 +
 include/uapi/linux/mdio.h    |  21 +++++++
 4 files changed, 129 insertions(+), 11 deletions(-)

-- 
2.17.1