netdev - [PATCH v2 0/7] net: phy: adin1100: Add initial support for ADIN1100 industrial PHY

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Date:   Mon, 12 Jul 2021 16:06:24 +0300
From:   <alexandru.tachici@...log.com>
To:     <netdev@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>
CC:     <robh+dt@...nel.org>, <andrew@...n.ch>, <hkallweit1@...il.com>,
        <linux@...linux.org.uk>, <davem@...emloft.net>, <kuba@...nel.org>,
        Alexandru Tachici <alexandru.tachici@...log.com>
Subject: [PATCH v2 0/7] net: phy: adin1100: Add initial support for ADIN1100 industrial PHY

From: Alexandru Tachici <alexandru.tachici@...log.com>

The ADIN1100 is a low power single port 10BASE-T1L transceiver designed for
industrial Ethernet applications and is compliant with the IEEE 802.3cg
Ethernet standard for long reach 10 Mb/s Single Pair Ethernet.

Ethtool output:
        Settings for eth1:
        Supported ports: [ TP	 MII ]
        Supported link modes:   10baseT1L/Full
                                2400mv
                                1000mv
        Supported pause frame use: Transmit-only
        Supports auto-negotiation: Yes
        Supported FEC modes: Not reported
        Advertised link modes:  10baseT1L/Full
                                2400mv
                                1000mv
        Advertised pause frame use: Transmit-only
        Advertised auto-negotiation: Yes
        Advertised FEC modes: Not reported
        Link partner advertised link modes:  10baseT1L/Full
                                             2400mv
        Link partner advertised pause frame use: No
        Link partner advertised auto-negotiation: Yes
        Link partner advertised FEC modes: Not reported
        Speed: 10Mb/s
        Duplex: Full
        Auto-negotiation: on
        master-slave cfg: preferred master
        master-slave status: master
        Port: MII
        PHYAD: 0
        Transceiver: external
        Link detected: yes
SQI: 7/7

1. Add basic support for ADIN1100.

Alexandru Ardelean (1):
  net: phy: adin1100: Add initial support for ADIN1100 industrial PHY

1. Added 10baset-T1L link modes.

2. Added 10base-T1L voltage levels link modes. 1v is the default TX level.
2.4 V support depends on pin configuration and power supply.

3. Allow user to access error and frame counters through ethtool.

4. Allow user to set the master-slave configuration of ADIN1100.

5. Convert MSE to SQI using a predefined table and allow user access
through ethtool.

6. DT bindings for ADIN1100.

Alexandru Tachici (6):
  ethtool: Add 10base-T1L link mode entries
  ethtool: Add 10base-T1L voltage levels link mode entries
  net: phy: adin1100: Add ethtool get_stats support
  net: phy: adin1100: Add ethtool master-slave support
  net: phy: adin1100: Add SQI support
  dt-bindings: adin1100: Add binding for ADIN1100 Ethernet PHY

Changelog v1 -> v2:
  - Added ETHTOOL_LINK_MODE_10baseT1L_Full_BIT and ETHTOOL_LINK_MODE_10baseT1L_Half_BIT.
  Using only full duplex here as chip supports full duplex only
  - removed .match_phy_device
  - removed link partner advertising of modes not present in the kernel
  - enable/disable only the PCS loopback
  - replaced custom timeout implementations with phy_read_mmd_poll_timeout
  - added link modes for 1.0 V and 2.4 V TX levels
  - removed link change notify
  - check if 2.4v TX level is supported in adin_get_features call and set
  corresponding link mode

 .../devicetree/bindings/net/adi,adin1100.yaml |  45 ++
 drivers/net/phy/Kconfig                       |   7 +
 drivers/net/phy/Makefile                      |   1 +
 drivers/net/phy/adin1100.c                    | 533 ++++++++++++++++++
 drivers/net/phy/phy-core.c                    |   4 +-
 include/uapi/linux/ethtool.h                  |   4 +
 net/ethtool/common.c                          |   6 +
 7 files changed, 599 insertions(+), 1 deletion(-)
 create mode 100644 Documentation/devicetree/bindings/net/adi,adin1100.yaml
 create mode 100644 drivers/net/phy/adin1100.c

--
2.25.1