linux.git/drivers/net/phy/Kconfig, branch v6.16

net: phy: add driver for MaxLinear MxL86110 PHY

2025-05-27T07:36:17+00:00

Add support for the MaxLinear MxL86110 Gigabit Ethernet PHY, a low-power,
cost-optimized transceiver supporting 10/100/1000 Mbps over twisted-pair
copper, compliant with IEEE 802.3.

The driver implements basic features such as:
- Device initialization
- RGMII interface timing configuration
- Wake-on-LAN support
- LED initialization and control via /sys/class/leds

This driver has been tested on multiple Variscite boards, including:
- VAR-SOM-MX93 (i.MX93)
- VAR-SOM-MX8M-PLUS (i.MX8MP)

Example boot log showing driver probe:
[    7.692101] imx-dwmac 428a0000.ethernet eth0:
	PHY [stmmac-0:00] driver [MXL86110 Gigabit Ethernet] (irq=POLL)

Signed-off-by: Stefano Radaelli 
Reviewed-by: Andrew Lunn 
Link: https://patch.msgid.link/20250521212821.593057-1-stefano.radaelli21@gmail.com
Signed-off-by: Paolo Abeni

net: phy: Add support for Aeonsemi AS21xxx PHYs

2025-05-21T22:56:10+00:00

Add support for Aeonsemi AS21xxx 10G C45 PHYs. These PHYs integrate
an IPC to setup some configuration and require special handling to
sync with the parity bit. The parity bit is a way the IPC use to
follow correct order of command sent.

Supported PHYs AS21011JB1, AS21011PB1, AS21010JB1, AS21010PB1,
AS21511JB1, AS21511PB1, AS21510JB1, AS21510PB1, AS21210JB1,
AS21210PB1 that all register with the PHY ID 0x7500 0x7510
before the firmware is loaded.

They all support up to 5 LEDs with various HW mode supported.

While implementing it was found some strange coincidence with using the
same logic for implementing C22 in MMD regs in Broadcom PHYs.

For reference here the AS21xxx PHY name logic:

AS21x1xxB1
    ^ ^^
    | |J: Supports SyncE/PTP
    | |P: No SyncE/PTP support
    | 1: Supports 2nd Serdes
    | 2: Not 2nd Serdes support
    0: 10G, 5G, 2.5G
    5: 5G, 2.5G
    2: 2.5G

Reviewed-by: Andrew Lunn 
Signed-off-by: Christian Marangi 
Link: https://patch.msgid.link/20250517201353.5137-6-ansuelsmth@gmail.com
Signed-off-by: Jakub Kicinski

net: phy: make mdio consumer / device layer a separate module

2025-05-20T10:22:47+00:00

After having factored out the provider part from mdio_bus.c, we can
make the mdio consumer / device layer a separate module. This also
allows to remove Kconfig symbol MDIO_DEVICE.
The module init / exit functions from mdio_bus.c no longer have to be
called from phy_device.c. The link order defined in
drivers/net/phy/Makefile ensures that init / exit functions are called
in the right order.

Signed-off-by: Heiner Kallweit 
Link: https://patch.msgid.link/dba6b156-5748-44ce-b5e2-e8dc2fcee5a7@gmail.com
Signed-off-by: Paolo Abeni

net: phy: remove Kconfig symbol MDIO_DEVRES

2025-05-15T02:12:19+00:00

MDIO_DEVRES is only set where PHYLIB/PHYLINK are set which
select MDIO_DEVRES. So we can remove this symbol.

Note: Due to circular module dependencies we can't simply
      make mdio_devres.c part of phylib.

Signed-off-by: Heiner Kallweit 
Link: https://patch.msgid.link/27cba535-f507-4b32-84a3-0744c783a465@gmail.com
Signed-off-by: Jakub Kicinski

net: phy: remove redundant dependency on NETDEVICES for PHYLINK and PHYLIB

2025-04-16T00:21:19+00:00

drivers/net/phy/Kconfig is included from drivers/net/Kconfig in an
"if NETDEVICES" section. Therefore we don't have to duplicate the
dependency here. And if e.g. PHYLINK is selected somewhere, then the
dependency is ignored anyway (see note in Kconfig help).

Signed-off-by: Heiner Kallweit 
Reviewed-by: Simon Horman 
Reviewed-by: Russell King (Oracle) 
Link: https://patch.msgid.link/085892cd-aa11-4c22-bf8a-574a5c6dcd7c@gmail.com
Signed-off-by: Jakub Kicinski

net: phy: nxp-c45-tja11xx: add support for TJA1121

2025-03-05T01:00:03+00:00

Add support for TJA1121 which is based on TJA1120 but with
additional MACsec IP.

Signed-off-by: Andrei Botila 
Reviewed-by: Andrew Lunn 
Link: https://patch.msgid.link/20250228154320.2979000-3-andrei.botila@oss.nxp.com
Signed-off-by: Jakub Kicinski

net: phy: move realtek PHY driver to its own subdirectory

2025-01-14T22:51:32+00:00

In preparation of adding a source file with hwmon support, move the
Realtek PHY driver to its own subdirectory and rename realtek.c to
realtek_main.c.

Signed-off-by: Heiner Kallweit 
Reviewed-by: Andrew Lunn 
Link: https://patch.msgid.link/c566551b-c915-4e34-9b33-129a6ddd6e4c@gmail.com
Signed-off-by: Jakub Kicinski

net: phy: microchip_t1: depend on PTP_1588_CLOCK_OPTIONAL

2025-01-14T10:24:01+00:00

When microchip_t1_phy is built in and phyptp is module
facing undefined reference issue. This get fixed when
microchip_t1_phy made dependent on PTP_1588_CLOCK_OPTIONAL.

Reported-by: kernel test robot 
Closes: https://lore.kernel.org/oe-kbuild-all/202501090604.YEoJXCXi-lkp@intel.com
Fixes: fa51199c5f34 ("net: phy: microchip_rds_ptp : Add rds ptp library for Microchip phys")
Signed-off-by: Divya Koppera 
Reviewed-by: Simon Horman 
Tested-by: Simon Horman  # build-tested
Link: https://patch.msgid.link/20250110054424.16807-1-divya.koppera@microchip.com
Signed-off-by: Paolo Abeni

net: phy: Kconfig: Add rds ptp library support and 1588 optional flag in Microchip phys

2024-12-23T18:30:59+00:00

Add ptp library support in Kconfig
As some of Microchip T1 phys support ptp, add dependency
of 1588 optional flag in Kconfig

Reviewed-by: Andrew Lunn 
Reviewed-by: Vadim Fedorenko 
Signed-off-by: Divya Koppera 
Link: https://patch.msgid.link/20241219123311.30213-4-divya.koppera@microchip.com
Signed-off-by: Jakub Kicinski

net: phy: mediatek: Re-organize MediaTek ethernet phy drivers

2024-11-13T13:06:04+00:00

Re-organize MediaTek ethernet phy driver files and get ready to integrate
some common functions and add new 2.5G phy driver.
mtk-ge.c: MT7530 Gphy on MT7621 & MT7531 Gphy
mtk-ge-soc.c: Built-in Gphy on MT7981 & Built-in switch Gphy on MT7988
mtk-2p5ge.c: Planned for built-in 2.5G phy on MT7988

Reviewed-by: Andrew Lunn 
Signed-off-by: SkyLake.Huang 
Signed-off-by: David S. Miller