1# SPDX-License-Identifier: GPL-2.0-only
2#
3# MDIO Layer Configuration
4#
5
6menuconfig MDIO_DEVICE
7	tristate "MDIO bus device drivers"
8	help
9	  MDIO devices and driver infrastructure code.
10
11if MDIO_DEVICE
12
13config MDIO_BUS
14	tristate
15	default m if PHYLIB=m
16	default MDIO_DEVICE
17	help
18	  This internal symbol is used for link time dependencies and it
19	  reflects whether the mdio_bus/mdio_device code is built as a
20	  loadable module or built-in.
21
22config FWNODE_MDIO
23	def_tristate PHYLIB
24	depends on (ACPI || OF) || COMPILE_TEST
25	select FIXED_PHY
26	help
27	  FWNODE MDIO bus (Ethernet PHY) accessors
28
29config OF_MDIO
30	def_tristate PHYLIB
31	depends on OF
32	depends on PHYLIB
33	select FIXED_PHY
34	help
35	  OpenFirmware MDIO bus (Ethernet PHY) accessors
36
37config ACPI_MDIO
38	def_tristate PHYLIB
39	depends on ACPI
40	depends on PHYLIB
41	help
42	  ACPI MDIO bus (Ethernet PHY) accessors
43
44if MDIO_BUS
45
46config MDIO_DEVRES
47	tristate
48
49config MDIO_SUN4I
50	tristate "Allwinner sun4i MDIO interface support"
51	depends on ARCH_SUNXI || COMPILE_TEST
52	help
53	  This driver supports the MDIO interface found in the network
54	  interface units of the Allwinner SoC that have an EMAC (A10,
55	  A12, A10s, etc.)
56
57config MDIO_XGENE
58	tristate "APM X-Gene SoC MDIO bus controller"
59	depends on ARCH_XGENE || COMPILE_TEST
60	help
61	  This module provides a driver for the MDIO busses found in the
62	  APM X-Gene SoC's.
63
64config MDIO_ASPEED
65	tristate "ASPEED MDIO bus controller"
66	depends on ARCH_ASPEED || COMPILE_TEST
67	depends on OF_MDIO && HAS_IOMEM
68	help
69	  This module provides a driver for the independent MDIO bus
70	  controllers found in the ASPEED AST2600 SoC. This is a driver for the
71	  third revision of the ASPEED MDIO register interface - the first two
72	  revisions are the "old" and "new" interfaces found in the AST2400 and
73	  AST2500, embedded in the MAC. For legacy reasons, FTGMAC100 driver
74	  continues to drive the embedded MDIO controller for the AST2400 and
75	  AST2500 SoCs, so say N if AST2600 support is not required.
76
77config MDIO_BITBANG
78	tristate "Bitbanged MDIO buses"
79	help
80	  This module implements the MDIO bus protocol in software,
81	  for use by low level drivers that export the ability to
82	  drive the relevant pins.
83
84	  If in doubt, say N.
85
86config MDIO_BCM_IPROC
87	tristate "Broadcom iProc MDIO bus controller"
88	depends on ARCH_BCM_IPROC || COMPILE_TEST
89	depends on HAS_IOMEM && OF_MDIO
90	default ARCH_BCM_IPROC
91	help
92	  This module provides a driver for the MDIO busses found in the
93	  Broadcom iProc SoC's.
94
95config MDIO_BCM_UNIMAC
96	tristate "Broadcom UniMAC MDIO bus controller"
97	depends on HAS_IOMEM
98	help
99	  This module provides a driver for the Broadcom UniMAC MDIO busses.
100	  This hardware can be found in the Broadcom GENET Ethernet MAC
101	  controllers as well as some Broadcom Ethernet switches such as the
102	  Starfighter 2 switches.
103
104config MDIO_CAVIUM
105	tristate
106
107config MDIO_GPIO
108	tristate "GPIO lib-based bitbanged MDIO buses"
109	depends on MDIO_BITBANG
110	depends on GPIOLIB || COMPILE_TEST
111	help
112	  Supports GPIO lib-based MDIO busses.
113
114	  To compile this driver as a module, choose M here: the module
115	  will be called mdio-gpio.
116
117config MDIO_HISI_FEMAC
118	tristate "Hisilicon FEMAC MDIO bus controller"
119	depends on HAS_IOMEM && OF_MDIO
120	help
121	  This module provides a driver for the MDIO busses found in the
122	  Hisilicon SoC that have an Fast Ethernet MAC.
123
124config MDIO_I2C
125	tristate
126	depends on I2C
127	help
128	  Support I2C based PHYs.  This provides a MDIO bus bridged
129	  to I2C to allow PHYs connected in I2C mode to be accessed
130	  using the existing infrastructure.
131
132	  This is library mode.
133
134config MDIO_MVUSB
135	tristate "Marvell USB to MDIO Adapter"
136	depends on USB
137	select MDIO_DEVRES
138	help
139	  A USB to MDIO converter present on development boards for
140	  Marvell's Link Street family of Ethernet switches.
141
142config MDIO_MSCC_MIIM
143	tristate "Microsemi MIIM interface support"
144	depends on HAS_IOMEM
145	select MDIO_DEVRES
146	help
147	  This driver supports the MIIM (MDIO) interface found in the network
148	  switches of the Microsemi SoCs; it is recommended to switch on
149	  CONFIG_HIGH_RES_TIMERS
150
151config MDIO_MOXART
152	tristate "MOXA ART MDIO interface support"
153	depends on ARCH_MOXART || COMPILE_TEST
154	help
155	  This driver supports the MDIO interface found in the network
156	  interface units of the MOXA ART SoC
157
158config MDIO_OCTEON
159	tristate "Octeon and some ThunderX SOCs MDIO buses"
160	depends on (64BIT && OF_MDIO) || COMPILE_TEST
161	depends on HAS_IOMEM
162	select MDIO_CAVIUM
163	select MDIO_DEVRES
164	help
165	  This module provides a driver for the Octeon and ThunderX MDIO
166	  buses. It is required by the Octeon and ThunderX ethernet device
167	  drivers on some systems.
168
169config MDIO_IPQ4019
170	tristate "Qualcomm IPQ4019 MDIO interface support"
171	depends on HAS_IOMEM && OF_MDIO
172	depends on COMMON_CLK
173	help
174	  This driver supports the MDIO interface found in Qualcomm
175	  IPQ40xx, IPQ60xx, IPQ807x and IPQ50xx series Soc-s.
176
177config MDIO_IPQ8064
178	tristate "Qualcomm IPQ8064 MDIO interface support"
179	depends on HAS_IOMEM && OF_MDIO
180	depends on MFD_SYSCON
181	help
182	  This driver supports the MDIO interface found in the network
183	  interface units of the IPQ8064 SoC
184
185config MDIO_THUNDER
186	tristate "ThunderX SOCs MDIO buses"
187	depends on 64BIT
188	depends on PCI
189	select MDIO_CAVIUM
190	select MDIO_DEVRES
191	help
192	  This driver supports the MDIO interfaces found on Cavium
193	  ThunderX SoCs when the MDIO bus device appears as a PCI
194	  device.
195
196comment "MDIO Multiplexers"
197
198config MDIO_BUS_MUX
199	tristate
200	depends on OF_MDIO
201	help
202	  This module provides a driver framework for MDIO bus
203	  multiplexers which connect one of several child MDIO busses
204	  to a parent bus.  Switching between child busses is done by
205	  device specific drivers.
206
207config MDIO_BUS_MUX_MESON_G12A
208	tristate "Amlogic G12a based MDIO bus multiplexer"
209	depends on ARCH_MESON || COMPILE_TEST
210	depends on OF_MDIO && HAS_IOMEM && COMMON_CLK
211	select MDIO_BUS_MUX
212	default m if ARCH_MESON
213	help
214	  This module provides a driver for the MDIO multiplexer/glue of
215	  the amlogic g12a SoC. The multiplexers connects either the external
216	  or the internal MDIO bus to the parent bus.
217
218config MDIO_BUS_MUX_BCM6368
219	tristate "Broadcom BCM6368 MDIO bus multiplexers"
220	depends on OF && OF_MDIO && (BMIPS_GENERIC || COMPILE_TEST)
221	select MDIO_BUS_MUX
222	default BMIPS_GENERIC
223	help
224	  This module provides a driver for MDIO bus multiplexers found in
225	  BCM6368 based Broadcom SoCs. This multiplexer connects one of several
226	  child MDIO bus to a parent bus. Buses could be internal as well as
227	  external and selection logic lies inside the same multiplexer.
228
229config MDIO_BUS_MUX_BCM_IPROC
230	tristate "Broadcom iProc based MDIO bus multiplexers"
231	depends on OF && OF_MDIO && (ARCH_BCM_IPROC || COMPILE_TEST)
232	select MDIO_BUS_MUX
233	default ARCH_BCM_IPROC
234	help
235	  This module provides a driver for MDIO bus multiplexers found in
236	  iProc based Broadcom SoCs. This multiplexer connects one of several
237	  child MDIO bus to a parent bus. Buses could be internal as well as
238	  external and selection logic lies inside the same multiplexer.
239
240config MDIO_BUS_MUX_GPIO
241	tristate "GPIO controlled MDIO bus multiplexers"
242	depends on OF_GPIO && OF_MDIO
243	select MDIO_BUS_MUX
244	help
245	  This module provides a driver for MDIO bus multiplexers that
246	  are controlled via GPIO lines.  The multiplexer connects one of
247	  several child MDIO busses to a parent bus.  Child bus
248	  selection is under the control of GPIO lines.
249
250config MDIO_BUS_MUX_MULTIPLEXER
251	tristate "MDIO bus multiplexer using kernel multiplexer subsystem"
252	depends on OF_MDIO
253	select MULTIPLEXER
254	select MDIO_BUS_MUX
255	help
256	  This module provides a driver for MDIO bus multiplexer
257	  that is controlled via the kernel multiplexer subsystem. The
258	  bus multiplexer connects one of several child MDIO busses to
259	  a parent bus.  Child bus selection is under the control of
260	  the kernel multiplexer subsystem.
261
262config MDIO_BUS_MUX_MMIOREG
263	tristate "MMIO device-controlled MDIO bus multiplexers"
264	depends on OF_MDIO && HAS_IOMEM
265	select MDIO_BUS_MUX
266	help
267	  This module provides a driver for MDIO bus multiplexers that
268	  are controlled via a simple memory-mapped device, like an FPGA.
269	  The multiplexer connects one of several child MDIO busses to a
270	  parent bus.  Child bus selection is under the control of one of
271	  the FPGA's registers.
272
273	  Currently, only 8/16/32 bits registers are supported.
274
275
276endif
277endif
278