CONFIG_FIXED_PHY: MDIO Bus/PHY emulation with fixed speed/link PHYs

General informations

The Linux kernel configuration item CONFIG_FIXED_PHY has multiple definitions:

MDIO Bus/PHY emulation with fixed speed/link PHYs found in drivers/net/phy/Kconfig

The configuration item CONFIG_FIXED_PHY:

• prompt: MDIO Bus/PHY emulation with fixed speed/link PHYs
• type: tristate
• depends on: (none)
• defined in drivers/net/phy/Kconfig
• found in Linux kernels: 4.9–4.20, 5.0–5.19, 6.0–6.12
• modules built: fixed, fixed_phy

Help text

Adds the platform "fixed" MDIO Bus to cover the boards that use PHYs that are not connected to the real MDIO bus.

Currently tested with mpc866ads and mpc8349e-mitx.

Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs found in drivers/net/phy/Kconfig

The configuration item CONFIG_FIXED_PHY:

• prompt: Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs
• type: tristate
• depends on: CONFIG_PHYLIB
• defined in drivers/net/phy/Kconfig
• found in Linux kernels: 3.19, 4.0–4.8
• modules built: fixed, fixed_phy

Help text

Adds the platform "fixed" MDIO Bus to cover the boards that use PHYs that are not connected to the real MDIO bus.

Currently tested with mpc866ads and mpc8349e-mitx.

Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs found in drivers/net/phy/Kconfig

The configuration item CONFIG_FIXED_PHY:

• prompt: Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs
• type: bool
• depends on: CONFIG_PHYLIB = CONFIG_y
• defined in drivers/net/phy/Kconfig
• found in Linux kernels: 2.6.25–2.6.39, 3.0–3.18
• modules built: fixed, fixed_phy

Help text

Adds the platform "fixed" MDIO Bus to cover the boards that use PHYs that are not connected to the real MDIO bus.

Currently tested with mpc866ads and mpc8349e-mitx.

Drivers for PHY emulation on fixed speed/link found in drivers/net/phy/Kconfig

The configuration item CONFIG_FIXED_PHY:

• prompt: Drivers for PHY emulation on fixed speed/link
• type: tristate
• depends on: (none)
• defined in drivers/net/phy/Kconfig
• found in Linux kernels: 2.6.18–2.6.24
• modules built: fixed, fixed_phy

Help text

Adds the driver to PHY layer to cover the boards that do not have any PHY bound, but with the ability to manipulate the speed/link in software. The relevant MII speed/duplex parameters could be effectively handled in a user-specified function. Currently tested with mpc866ads.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb module fixed CONFIG_FIXED_PHY : drivers/net/phy/Kconfig : "Drivers for PHY emulation on fixed speed/link" # in 2.6.18–2.6.24
• lkddb module fixed_phy CONFIG_FIXED_PHY : drivers/net/phy/Kconfig : "MDIO Bus/PHY emulation with fixed speed/link PHYs" # in 3.19, 4.0–4.20, 5.0–5.19, 6.0–6.12

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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