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+# SPDX-License-Identifier: GPL-2.0-only
+#
+# MDIO Layer Configuration
+#
+
+menuconfig MDIO_DEVICE
+ tristate "MDIO bus device drivers"
+ help
+ MDIO devices and driver infrastructure code.
+
+if MDIO_DEVICE
+
+config MDIO_BUS
+ tristate
+ default m if PHYLIB=m
+ default MDIO_DEVICE
+ help
+ This internal symbol is used for link time dependencies and it
+ reflects whether the mdio_bus/mdio_device code is built as a
+ loadable module or built-in.
+
+config FWNODE_MDIO
+ def_tristate PHYLIB
+ depends on (ACPI || OF) || COMPILE_TEST
+ select FIXED_PHY
+ help
+ FWNODE MDIO bus (Ethernet PHY) accessors
+
+config OF_MDIO
+ def_tristate PHYLIB
+ depends on OF
+ depends on PHYLIB
+ select FIXED_PHY
+ help
+ OpenFirmware MDIO bus (Ethernet PHY) accessors
+
+config ACPI_MDIO
+ def_tristate PHYLIB
+ depends on ACPI
+ depends on PHYLIB
+ help
+ ACPI MDIO bus (Ethernet PHY) accessors
+
+if MDIO_BUS
+
+config MDIO_DEVRES
+ tristate
+
+config MDIO_SUN4I
+ tristate "Allwinner sun4i MDIO interface support"
+ depends on ARCH_SUNXI || COMPILE_TEST
+ help
+ This driver supports the MDIO interface found in the network
+ interface units of the Allwinner SoC that have an EMAC (A10,
+ A12, A10s, etc.)
+
+config MDIO_XGENE
+ tristate "APM X-Gene SoC MDIO bus controller"
+ depends on ARCH_XGENE || COMPILE_TEST
+ help
+ This module provides a driver for the MDIO busses found in the
+ APM X-Gene SoC's.
+
+config MDIO_ASPEED
+ tristate "ASPEED MDIO bus controller"
+ depends on ARCH_ASPEED || COMPILE_TEST
+ depends on OF_MDIO && HAS_IOMEM
+ help
+ This module provides a driver for the independent MDIO bus
+ controllers found in the ASPEED AST2600 SoC. This is a driver for the
+ third revision of the ASPEED MDIO register interface - the first two
+ revisions are the "old" and "new" interfaces found in the AST2400 and
+ AST2500, embedded in the MAC. For legacy reasons, FTGMAC100 driver
+ continues to drive the embedded MDIO controller for the AST2400 and
+ AST2500 SoCs, so say N if AST2600 support is not required.
+
+config MDIO_BITBANG
+ tristate "Bitbanged MDIO buses"
+ help
+ This module implements the MDIO bus protocol in software,
+ for use by low level drivers that export the ability to
+ drive the relevant pins.
+
+ If in doubt, say N.
+
+config MDIO_BCM_IPROC
+ tristate "Broadcom iProc MDIO bus controller"
+ depends on ARCH_BCM_IPROC || COMPILE_TEST
+ depends on HAS_IOMEM && OF_MDIO
+ default ARCH_BCM_IPROC
+ help
+ This module provides a driver for the MDIO busses found in the
+ Broadcom iProc SoC's.
+
+config MDIO_BCM_UNIMAC
+ tristate "Broadcom UniMAC MDIO bus controller"
+ depends on HAS_IOMEM
+ help
+ This module provides a driver for the Broadcom UniMAC MDIO busses.
+ This hardware can be found in the Broadcom GENET Ethernet MAC
+ controllers as well as some Broadcom Ethernet switches such as the
+ Starfighter 2 switches.
+
+config MDIO_CAVIUM
+ tristate
+
+config MDIO_GPIO
+ tristate "GPIO lib-based bitbanged MDIO buses"
+ depends on MDIO_BITBANG
+ depends on GPIOLIB || COMPILE_TEST
+ help
+ Supports GPIO lib-based MDIO busses.
+
+ To compile this driver as a module, choose M here: the module
+ will be called mdio-gpio.
+
+config MDIO_HISI_FEMAC
+ tristate "Hisilicon FEMAC MDIO bus controller"
+ depends on HAS_IOMEM && OF_MDIO
+ help
+ This module provides a driver for the MDIO busses found in the
+ Hisilicon SoC that have an Fast Ethernet MAC.
+
+config MDIO_I2C
+ tristate
+ depends on I2C
+ help
+ Support I2C based PHYs. This provides a MDIO bus bridged
+ to I2C to allow PHYs connected in I2C mode to be accessed
+ using the existing infrastructure.
+
+ This is library mode.
+
+config MDIO_MVUSB
+ tristate "Marvell USB to MDIO Adapter"
+ depends on USB
+ select MDIO_DEVRES
+ help
+ A USB to MDIO converter present on development boards for
+ Marvell's Link Street family of Ethernet switches.
+
+config MDIO_MSCC_MIIM
+ tristate "Microsemi MIIM interface support"
+ depends on HAS_IOMEM && REGMAP_MMIO
+ select MDIO_DEVRES
+ help
+ This driver supports the MIIM (MDIO) interface found in the network
+ switches of the Microsemi SoCs; it is recommended to switch on
+ CONFIG_HIGH_RES_TIMERS
+
+config MDIO_MOXART
+ tristate "MOXA ART MDIO interface support"
+ depends on ARCH_MOXART || COMPILE_TEST
+ help
+ This driver supports the MDIO interface found in the network
+ interface units of the MOXA ART SoC
+
+config MDIO_OCTEON
+ tristate "Octeon and some ThunderX SOCs MDIO buses"
+ depends on (64BIT && OF_MDIO) || COMPILE_TEST
+ depends on HAS_IOMEM
+ select MDIO_CAVIUM
+ select MDIO_DEVRES
+ help
+ This module provides a driver for the Octeon and ThunderX MDIO
+ buses. It is required by the Octeon and ThunderX ethernet device
+ drivers on some systems.
+
+config MDIO_IPQ4019
+ tristate "Qualcomm IPQ4019 MDIO interface support"
+ depends on HAS_IOMEM && OF_MDIO
+ depends on COMMON_CLK
+ help
+ This driver supports the MDIO interface found in Qualcomm
+ IPQ40xx, IPQ60xx, IPQ807x and IPQ50xx series Soc-s.
+
+config MDIO_IPQ8064
+ tristate "Qualcomm IPQ8064 MDIO interface support"
+ depends on HAS_IOMEM && OF_MDIO
+ depends on MFD_SYSCON
+ help
+ This driver supports the MDIO interface found in the network
+ interface units of the IPQ8064 SoC
+
+config MDIO_THUNDER
+ tristate "ThunderX SOCs MDIO buses"
+ depends on 64BIT
+ depends on PCI
+ select MDIO_CAVIUM
+ select MDIO_DEVRES
+ help
+ This driver supports the MDIO interfaces found on Cavium
+ ThunderX SoCs when the MDIO bus device appears as a PCI
+ device.
+
+comment "MDIO Multiplexers"
+
+config MDIO_BUS_MUX
+ tristate
+ depends on OF_MDIO
+ help
+ This module provides a driver framework for MDIO bus
+ multiplexers which connect one of several child MDIO busses
+ to a parent bus. Switching between child busses is done by
+ device specific drivers.
+
+config MDIO_BUS_MUX_MESON_G12A
+ tristate "Amlogic G12a based MDIO bus multiplexer"
+ depends on ARCH_MESON || COMPILE_TEST
+ depends on OF_MDIO && HAS_IOMEM && COMMON_CLK
+ select MDIO_BUS_MUX
+ default m if ARCH_MESON
+ help
+ This module provides a driver for the MDIO multiplexer/glue of
+ the amlogic g12a SoC. The multiplexers connects either the external
+ or the internal MDIO bus to the parent bus.
+
+config MDIO_BUS_MUX_BCM6368
+ tristate "Broadcom BCM6368 MDIO bus multiplexers"
+ depends on OF && OF_MDIO && (BMIPS_GENERIC || COMPILE_TEST)
+ select MDIO_BUS_MUX
+ default BMIPS_GENERIC
+ help
+ This module provides a driver for MDIO bus multiplexers found in
+ BCM6368 based Broadcom SoCs. This multiplexer connects one of several
+ child MDIO bus to a parent bus. Buses could be internal as well as
+ external and selection logic lies inside the same multiplexer.
+
+config MDIO_BUS_MUX_BCM_IPROC
+ tristate "Broadcom iProc based MDIO bus multiplexers"
+ depends on OF && OF_MDIO && (ARCH_BCM_IPROC || COMPILE_TEST)
+ select MDIO_BUS_MUX
+ default ARCH_BCM_IPROC
+ help
+ This module provides a driver for MDIO bus multiplexers found in
+ iProc based Broadcom SoCs. This multiplexer connects one of several
+ child MDIO bus to a parent bus. Buses could be internal as well as
+ external and selection logic lies inside the same multiplexer.
+
+config MDIO_BUS_MUX_GPIO
+ tristate "GPIO controlled MDIO bus multiplexers"
+ depends on OF_GPIO && OF_MDIO
+ select MDIO_BUS_MUX
+ help
+ This module provides a driver for MDIO bus multiplexers that
+ are controlled via GPIO lines. The multiplexer connects one of
+ several child MDIO busses to a parent bus. Child bus
+ selection is under the control of GPIO lines.
+
+config MDIO_BUS_MUX_MULTIPLEXER
+ tristate "MDIO bus multiplexer using kernel multiplexer subsystem"
+ depends on OF_MDIO
+ select MULTIPLEXER
+ select MDIO_BUS_MUX
+ help
+ This module provides a driver for MDIO bus multiplexer
+ that is controlled via the kernel multiplexer subsystem. The
+ bus multiplexer connects one of several child MDIO busses to
+ a parent bus. Child bus selection is under the control of
+ the kernel multiplexer subsystem.
+
+config MDIO_BUS_MUX_MMIOREG
+ tristate "MMIO device-controlled MDIO bus multiplexers"
+ depends on OF_MDIO && HAS_IOMEM
+ select MDIO_BUS_MUX
+ help
+ This module provides a driver for MDIO bus multiplexers that
+ are controlled via a simple memory-mapped device, like an FPGA.
+ The multiplexer connects one of several child MDIO busses to a
+ parent bus. Child bus selection is under the control of one of
+ the FPGA's registers.
+
+ Currently, only 8/16/32 bits registers are supported.
+
+
+endif
+endif