| /Linux-v5.15/drivers/net/ |
| D | mdio.c | 3 * mdio.c: Generic support for MDIO-compatible transceivers
11 #include <linux/mdio.h>
14 MODULE_DESCRIPTION("Generic support for MDIO-compatible transceivers");
19 * mdio45_probe - probe for an MDIO (clause 45) device
20 * @mdio: MDIO interface
23 * This sets @prtad and @mmds in the MDIO interface if successful.
26 int mdio45_probe(struct mdio_if_info *mdio, int prtad) in mdio45_probe() argument
34 stat2 = mdio->mdio_read(mdio->dev, prtad, mmd, MDIO_STAT2); in mdio45_probe()
40 devs1 = mdio->mdio_read(mdio->dev, prtad, mmd, MDIO_DEVS1); in mdio45_probe()
41 devs2 = mdio->mdio_read(mdio->dev, prtad, mmd, MDIO_DEVS2); in mdio45_probe()
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| /Linux-v5.15/drivers/net/mdio/ |
| D | Kconfig | 3 # MDIO Layer Configuration
7 tristate "MDIO bus device drivers"
9 MDIO devices and driver infrastructure code.
27 FWNODE MDIO bus (Ethernet PHY) accessors
35 OpenFirmware MDIO bus (Ethernet PHY) accessors
42 ACPI MDIO bus (Ethernet PHY) accessors
50 tristate "Allwinner sun4i MDIO interface support"
53 This driver supports the MDIO interface found in the network
58 tristate "APM X-Gene SoC MDIO bus controller"
61 This module provides a driver for the MDIO busses found in the
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| D | Makefile | 2 # Makefile for Linux MDIO bus drivers
8 obj-$(CONFIG_MDIO_ASPEED) += mdio-aspeed.o
9 obj-$(CONFIG_MDIO_BCM_IPROC) += mdio-bcm-iproc.o
10 obj-$(CONFIG_MDIO_BCM_UNIMAC) += mdio-bcm-unimac.o
11 obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o
12 obj-$(CONFIG_MDIO_CAVIUM) += mdio-cavium.o
13 obj-$(CONFIG_MDIO_GPIO) += mdio-gpio.o
14 obj-$(CONFIG_MDIO_HISI_FEMAC) += mdio-hisi-femac.o
15 obj-$(CONFIG_MDIO_I2C) += mdio-i2c.o
16 obj-$(CONFIG_MDIO_IPQ4019) += mdio-ipq4019.o
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| D | mdio-mvusb.c | 27 struct mii_bus *mdio; member
32 static int mvusb_mdio_read(struct mii_bus *mdio, int dev, int reg) in mvusb_mdio_read() argument
34 struct mvusb_mdio *mvusb = mdio->priv; in mvusb_mdio_read()
55 static int mvusb_mdio_write(struct mii_bus *mdio, int dev, int reg, u16 val) in mvusb_mdio_write() argument
57 struct mvusb_mdio *mvusb = mdio->priv; in mvusb_mdio_write()
75 struct mii_bus *mdio; in mvusb_mdio_probe() local
77 mdio = devm_mdiobus_alloc_size(dev, sizeof(*mvusb)); in mvusb_mdio_probe()
78 if (!mdio) in mvusb_mdio_probe()
81 mvusb = mdio->priv; in mvusb_mdio_probe()
82 mvusb->mdio = mdio; in mvusb_mdio_probe()
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| D | mdio-gpio.c | 3 * GPIO based MDIO bitbang driver.
22 #include <linux/mdio-bitbang.h>
23 #include <linux/mdio-gpio.h>
26 #include <linux/platform_data/mdio-gpio.h>
32 struct gpio_desc *mdc, *mdio, *mdo; member
43 bitbang->mdio = devm_gpiod_get_index(dev, NULL, MDIO_GPIO_MDIO, in mdio_gpio_get_data()
45 if (IS_ERR(bitbang->mdio)) in mdio_gpio_get_data()
46 return PTR_ERR(bitbang->mdio); in mdio_gpio_get_data()
69 gpiod_direction_output(bitbang->mdio, 1); in mdio_dir()
71 gpiod_direction_input(bitbang->mdio); in mdio_dir()
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| D | of_mdio.c | 3 * OF helpers for the MDIO (Ethernet PHY) API
36 int of_mdiobus_phy_device_register(struct mii_bus *mdio, struct phy_device *phy, in of_mdiobus_phy_device_register() argument
39 return fwnode_mdiobus_phy_device_register(mdio, phy, in of_mdiobus_phy_device_register()
45 static int of_mdiobus_register_phy(struct mii_bus *mdio, in of_mdiobus_register_phy() argument
48 return fwnode_mdiobus_register_phy(mdio, of_fwnode_handle(child), addr); in of_mdiobus_register_phy()
51 static int of_mdiobus_register_device(struct mii_bus *mdio, in of_mdiobus_register_device() argument
58 mdiodev = mdio_device_create(mdio, addr); in of_mdiobus_register_device()
76 dev_dbg(&mdio->dev, "registered mdio device %pOFn at address %i\n", in of_mdiobus_register_device()
84 * to have a compatible string, so they can be matched to an MDIO
142 * @mdio: pointer to mii_bus structure
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| D | acpi_mdio.c | 3 * ACPI helpers for the MDIO (Ethernet PHY) API
22 * @mdio: pointer to mii_bus structure
23 * @fwnode: pointer to fwnode of MDIO bus. This fwnode is expected to represent
24 * an ACPI device object corresponding to the MDIO bus and its children are
30 int acpi_mdiobus_register(struct mii_bus *mdio, struct fwnode_handle *fwnode) in acpi_mdiobus_register() argument
37 mdio->phy_mask = GENMASK(31, 0); in acpi_mdiobus_register()
38 ret = mdiobus_register(mdio); in acpi_mdiobus_register()
42 ACPI_COMPANION_SET(&mdio->dev, to_acpi_device_node(fwnode)); in acpi_mdiobus_register()
50 ret = fwnode_mdiobus_register_phy(mdio, child, addr); in acpi_mdiobus_register()
52 dev_err(&mdio->dev, in acpi_mdiobus_register()
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| /Linux-v5.15/Documentation/devicetree/bindings/net/ |
| D | brcm,unimac-mdio.yaml | 4 $id: http://devicetree.org/schemas/net/brcm,unimac-mdio.yaml#
7 title: Broadcom UniMAC MDIO bus controller
13 - $ref: mdio.yaml#
18 - brcm,genet-mdio-v1
19 - brcm,genet-mdio-v2
20 - brcm,genet-mdio-v3
21 - brcm,genet-mdio-v4
22 - brcm,genet-mdio-v5
23 - brcm,unimac-mdio
29 - description: indirect accesses to larger than 16-bits MDIO transactions
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| D | allwinner,sun8i-a83t-emac.yaml | 123 mdio-mux:
128 const: allwinner,sun8i-h3-mdio-mux
130 mdio-parent-bus:
133 Phandle to EMAC MDIO.
135 mdio@1:
137 description: Internal MDIO Bus
147 const: allwinner,sun8i-h3-mdio-internal
170 mdio@2:
172 description: External MDIO Bus (H3 only)
186 - mdio-parent-bus
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| D | cavium-mdio.txt | 1 * System Management Interface (SMI) / MDIO
6 "cavium,octeon-3860-mdio": Compatibility with all cn3XXX, cn5XXX
9 "cavium,thunder-8890-mdio": Compatibility with all cn8XXX SOCs.
11 - reg: The base address of the MDIO bus controller register bank.
15 - #size-cells: Must be <0>. MDIO addresses have no size component.
17 Typically an MDIO bus might have several children.
20 mdio@1180000001800 {
21 compatible = "cavium,octeon-3860-mdio";
33 * System Management Interface (SMI) / MDIO Nexus
35 Several mdio buses may be gathered as children of a single PCI
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| D | mdio-mux-multiplexer.yaml | 4 $id: http://devicetree.org/schemas/net/mdio-mux-multiplexer.yaml#
7 title: Properties for an MDIO bus multiplexer consumer device
13 This is a special case of MDIO mux when MDIO mux is defined as a consumer
19 - $ref: /schemas/net/mdio-mux.yaml#
23 const: mdio-mux-multiplexer
43 mdio-mux-1 { // Mux consumer
44 compatible = "mdio-mux-multiplexer";
46 mdio-parent-bus = <&emdio1>;
50 mdio@0 {
56 mdio@8 {
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| D | marvell-orion-mdio.txt | 1 * Marvell MDIO Ethernet Controller interface
5 identical unit that provides an interface with the MDIO bus.
11 - compatible: "marvell,orion-mdio" or "marvell,xmdio"
12 - reg: address and length of the MDIO registers. When an interrupt is
19 - clocks: phandle for up to four required clocks for the MDIO instance
21 The child nodes of the MDIO driver are the individual PHY devices
22 connected to this MDIO bus. They must have a "reg" property given the
23 PHY address on the MDIO bus.
27 mdio {
30 compatible = "marvell,orion-mdio";
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| D | hisilicon-hns-mdio.txt | 1 Hisilicon MDIO bus controller
5 "hisilicon,hns-mdio"
6 "hisilicon,mdio"
7 "hisilicon,hns-mdio" is recommended to be used for hip05 and later SOCs,
8 while "hisilicon,mdio" is optional for backwards compatibility only on
10 - reg: The base address of the MDIO bus controller register bank.
12 - #size-cells: Must be <0>. MDIO addresses have no size component.
14 Typically an MDIO bus might have several children.
17 mdio@803c0000 {
20 compatible = "hisilicon,hns-mdio","hisilicon,mdio";
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| D | brcm,mdio-mux-iproc.txt | 1 Properties for an MDIO bus multiplexer found in Broadcom iProc based SoCs.
3 This MDIO bus multiplexer defines buses that could be internal as well as
4 external to SoCs and could accept MDIO transaction compatible to C-22 or
6 properties as well to generate desired MDIO transaction on appropriate bus.
10 MDIO multiplexer node:
11 - compatible: brcm,mdio-mux-iproc.
17 - clocks: phandle of the core clock which drives the mdio block.
20 at- Documentation/devicetree/bindings/net/mdio-mux.yaml
24 mdio_mux_iproc: mdio-mux@66020000 {
25 compatible = "brcm,mdio-mux-iproc";
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| D | mdio-mux-mmioreg.yaml | 4 $id: http://devicetree.org/schemas/net/mdio-mux-mmioreg.yaml#
7 title: Properties for an MDIO bus multiplexer controlled by a memory-mapped device
13 This is a special case of a MDIO bus multiplexer. A memory-mapped device,
14 like an FPGA, is used to control which child bus is connected. The mdio-mux
19 - $ref: /schemas/net/mdio-mux.yaml#
24 - const: mdio-mux-mmioreg
25 - const: mdio-mux
37 child mdio-mux node must be constrained by this mask.
48 mdio-mux@9 {
49 compatible = "mdio-mux-mmioreg", "mdio-mux";
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| D | fsl-enetc.txt | 14 1. The ENETC external port is connected to a MDIO configurable phy
16 1.1. Using the local ENETC Port MDIO interface
18 In this case, the ENETC node should include a "mdio" sub-node
26 - phy-handle : Phandle to a PHY on the MDIO bus.
31 - mdio : "mdio" node, defined in mdio.txt.
43 mdio {
52 1.2. Using the central MDIO PCIe endpoint device
54 In this case, the mdio node should be defined as another PCIe
62 - compatible : Should be "fsl,enetc-mdio".
64 The remaining required mdio bus properties are standard, their bindings
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| D | brcm,bcmgenet.txt | 28 when operating in a RGMII to RGMII type of connection, or when the MDIO bus is
35 - mdio bus node: this node should always be present regardless of the PHY
38 MDIO bus node required properties:
40 - compatible: should contain one of "brcm,genet-mdio-v1", "brcm,genet-mdio-v2"
41 "brcm,genet-mdio-v3", "brcm,genet-mdio-v4", "brcm,genet-mdio-v5", the version
43 with brcm,genet-mdio-v4)
45 - #address-cells: address cell for MDIO bus addressing, should be 1
46 - #size-cells: size of the cells for MDIO bus addressing, should be 0
65 mdio@e14 {
66 compatible = "brcm,genet-mdio-v4";
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| D | brcm,bcm6368-mdio-mux.yaml | 4 $id: http://devicetree.org/schemas/net/brcm,bcm6368-mdio-mux.yaml#
7 title: Broadcom BCM6368 MDIO bus multiplexer
13 This MDIO bus multiplexer defines buses that could be internal as well as
15 properties as well to generate desired MDIO transaction on appropriate bus.
18 - $ref: "mdio.yaml#"
22 const: brcm,bcm6368-mdio-mux
38 '^mdio@[0-1]$':
59 mdio0: mdio@10e000b0 {
62 compatible = "brcm,bcm6368-mdio-mux";
65 mdio_int: mdio@0 {
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| D | apm-xgene-mdio.txt | 1 APM X-Gene SoC MDIO node
3 MDIO node is defined to describe on-chip MDIO controller.
6 - compatible: Must be "apm,xgene-mdio-rgmii" or "apm,xgene-mdio-xfi"
12 For the phys on the mdio bus, there must be a node with the following fields:
18 mdio: mdio@17020000 {
19 compatible = "apm,xgene-mdio-rgmii";
27 &mdio {
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| D | mdio.yaml | 4 $id: http://devicetree.org/schemas/net/mdio.yaml#
7 title: MDIO Bus Generic Binding
15 These are generic properties that can apply to any MDIO bus. Any
16 MDIO bus must have a list of child nodes, one per device on the
22 pattern: "^mdio(@.*)?"
34 lines of all devices on that MDIO bus.
38 RESET pulse width in microseconds. It applies to all MDIO devices
44 Delay after reset deassert in microseconds. It applies to all MDIO
51 Desired MDIO bus clock frequency in Hz. Values greater than IEEE 802.3
75 If set, indicates the MDIO device does not correctly release
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| D | mdio-gpio.yaml | 4 $id: http://devicetree.org/schemas/net/mdio-gpio.yaml#
7 title: MDIO on GPIOs
15 - $ref: "mdio.yaml#"
20 - virtual,mdio-gpio
21 - microchip,mdio-smi0
33 - description: MDIO
36 #Note: Each gpio-mdio bus should have an alias correctly numbered in "aliases"
44 mdio-gpio0 = &mdio0;
47 mdio0: mdio {
48 compatible = "virtual,mdio-gpio";
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| D | fsl-tsec-phy.txt | 1 * MDIO IO device
3 The MDIO is a bus to which the PHY devices are connected. For each
15 mdio. Currently supported strings/devices are:
17 - "fsl,gianfar-mdio"
19 - "fsl,etsec2-mdio"
20 - "fsl,ucc-mdio"
21 - "fsl,fman-mdio"
22 When device_type is "mdio", the following strings are also considered:
28 mdio@24520 {
30 compatible = "fsl,gianfar-mdio";
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| /Linux-v5.15/arch/arm64/boot/dts/freescale/ |
| D | fsl-lx2162a-qds.dts | 33 mdio-mux-1 {
34 compatible = "mdio-mux-multiplexer";
36 mdio-parent-bus = <&emdio1>;
40 mdio@0 { /* On-board RTL8211F PHY #1 RGMII1 */
52 mdio@8 { /* On-board RTL8211F PHY #2 RGMII2 */
64 mdio@18 { /* Slot #1 */
70 mdio@19 { /* Slot #2 */
76 mdio@1a { /* Slot #3 */
82 mdio@1b { /* Slot #4 */
88 mdio@1c { /* Slot #5 */
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| /Linux-v5.15/Documentation/devicetree/bindings/net/dsa/ |
| D | realtek-smi.txt | 5 bit-banged GPIO that while it reuses the MDIO lines MCK and MDIO does
6 not use the MDIO protocol. This binding defines how to specify the
23 - mdio-gpios: GPIO line for the MDIO data line.
48 - mdio
50 This defines the internal MDIO bus of the SMI device, mostly for the
54 Required properties of mdio:
56 - compatible: should be set to "realtek,smi-mdio" for all SMI devices
58 See net/mdio.txt for additional MDIO bus properties.
67 /* 22 = MDIO (has input reads), 21 = MDC (clock, output only) */
69 mdio-gpios = <&gpio0 22 GPIO_ACTIVE_HIGH>;
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| /Linux-v5.15/include/linux/ |
| D | mdio.h | 3 * linux/mdio.h: definitions for MDIO (clause 45) transceivers
9 #include <uapi/linux/mdio.h>
44 /* Bus address of the MDIO device (0-31) */
58 /* struct mdio_driver_common: Common to all MDIO drivers */
71 /* struct mdio_driver: Generic MDIO driver */
96 static inline void mdiodev_set_drvdata(struct mdio_device *mdio, void *data) in mdiodev_set_drvdata() argument
98 dev_set_drvdata(&mdio->dev, data); in mdiodev_set_drvdata()
101 static inline void *mdiodev_get_drvdata(struct mdio_device *mdio) in mdiodev_get_drvdata() argument
103 return dev_get_drvdata(&mdio->dev); in mdiodev_get_drvdata()
131 * struct mdio_if_info - Ethernet controller MDIO interface
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