| /linux-6.12.1/Documentation/devicetree/bindings/net/ |
| D | mdio-mux-multiplexer.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/net/mdio-mux-multiplexer.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Properties for an MDIO bus multiplexer consumer device
10 - Andrew Lunn <andrew@lunn.ch>
13 This is a special case of MDIO mux when MDIO mux is defined as a consumer
14 of a mux producer device. The mux producer can be of any type like mmio mux
15 producer, gpio mux producer or generic register based mux producer.
19 - $ref: /schemas/net/mdio-mux.yaml#
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| D | mdio-mux-mmioreg.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/net/mdio-mux-mmioreg.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Properties for an MDIO bus multiplexer controlled by a memory-mapped device
10 - Andrew Lunn <andrew@lunn.ch>
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
15 node must be a child of the memory-mapped device. The driver currently only
16 supports devices with 8, 16 or 32-bit registers.
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| D | amlogic,g12a-mdio-mux.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/amlogic,g12a-mdio-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MDIO bus multiplexer/glue of Amlogic G12a SoC family
10 This is a special case of a MDIO bus multiplexer. It allows to choose between
11 the internal mdio bus leading to the embedded 10/100 PHY or the external
12 MDIO bus.
15 - Neil Armstrong <neil.armstrong@linaro.org>
18 - $ref: mdio-mux.yaml#
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| D | brcm,bcm6368-mdio-mux.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/net/brcm,bcm6368-mdio-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Broadcom BCM6368 MDIO bus multiplexer
10 - Álvaro Fernández Rojas <noltari@gmail.com>
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-mux.yaml#
22 const: brcm,bcm6368-mdio-mux
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| D | amlogic,gxl-mdio-mux.yaml | 1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
3 ---
4 $id: http://devicetree.org/schemas/net/amlogic,gxl-mdio-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Amlogic GXL MDIO bus multiplexer
10 - Jerome Brunet <jbrunet@baylibre.com>
13 This is a special case of a MDIO bus multiplexer. It allows to choose between
14 the internal mdio bus leading to the embedded 10/100 PHY or the external
15 MDIO bus on the Amlogic GXL SoC family.
18 - $ref: mdio-mux.yaml#
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| D | brcm,mdio-mux-iproc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/net/brcm,mdio-mux-iproc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: MDIO bus multiplexer found in Broadcom iProc based SoCs.
10 - Florian Fainelli <f.fainelli@gmail.com>
13 This MDIO bus multiplexer defines buses that could be internal as well as
14 external to SoCs and could accept MDIO transaction compatible to C-22 or
15 C-45 Clause. When child bus is selected, one needs to select these two
16 properties as well to generate desired MDIO transaction on appropriate bus.
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| D | mdio-mux-gpio.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/net/mdio-mux-gpio.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Properties for an MDIO bus multiplexer/switch controlled by GPIO pins.
10 - Andrew Lunn <andrew@lunn.ch>
13 This is a special case of a MDIO bus multiplexer. One or more GPIO
17 - $ref: /schemas/net/mdio-mux.yaml#
21 const: mdio-mux-gpio
25 List of GPIOs used to control the multiplexer, least significant bit first.
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| D | mdio-mux.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/net/mdio-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Common MDIO bus multiplexer/switch properties.
10 - Andrew Lunn <andrew@lunn.ch>
13 An MDIO bus multiplexer/switch will have several child busses that are
14 numbered uniquely in a device dependent manner. The nodes for an MDIO
15 bus multiplexer/switch will have one child node for each child bus.
18 mdio-parent-bus:
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| D | keystone-netcp.txt | 6 switch sub-module to send and receive packets. NetCP also includes a packet
13 includes a 3-port Ethernet switch sub-module capable of 10Gb/s and 1Gb/s rates
16 Keystone NetCP driver has a plug-in module architecture where each of the NetCP
17 sub-modules exist as a loadable kernel module which plug in to the netcp core.
18 These sub-modules are represented as "netcp-devices" in the dts bindings. It is
19 mandatory to have the ethernet switch sub-module for the ethernet interface to
20 be operational. Any other sub-module like the PA is optional.
24 -----------------------------
26 -----------------------------
28 |-> NetCP Devices -> |
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| /linux-6.12.1/drivers/net/mdio/ |
| D | mdio-mux-multiplexer.c | 1 // SPDX-License-Identifier: GPL-2.0+
2 /* MDIO bus multiplexer using kernel multiplexer subsystem
7 #include <linux/mdio-mux.h>
9 #include <linux/mux/consumer.h>
19 * mdio_mux_multiplexer_switch_fn - This function is called by the mdio-mux
20 * layer when it thinks the mdio bus
21 * multiplexer needs to switch.
22 * @current_child: current value of the mux register.
23 * @desired_child: value of the 'reg' property of the target child MDIO node.
27 * The first time this function is called, current_child == -1.
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| D | Makefile | 1 # SPDX-License-Identifier: GPL-2.0
2 # Makefile for Linux MDIO bus drivers
4 obj-$(CONFIG_ACPI_MDIO) += acpi_mdio.o
5 obj-$(CONFIG_FWNODE_MDIO) += fwnode_mdio.o
6 obj-$(CONFIG_OF_MDIO) += of_mdio.o
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
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| D | mdio-mux-meson-gxl.c | 1 // SPDX-License-Identifier: GPL-2.0
10 #include <linux/mdio-mux.h>
59 writel(REG4_PWRUPRSTSIG, priv->regs + ETH_REG4); in gxl_enable_internal_mdio()
60 writel(val, priv->regs + ETH_REG3); in gxl_enable_internal_mdio()
66 * drivers/net/phy/meson-gxl.c to properly match the PHY. in gxl_enable_internal_mdio()
69 priv->regs + ETH_REG2); in gxl_enable_internal_mdio()
73 writel(val, priv->regs + ETH_REG3); in gxl_enable_internal_mdio()
74 writel(0, priv->regs + ETH_REG4); in gxl_enable_internal_mdio()
82 /* Reset the mdio bus mux to the external phy */ in gxl_enable_external_mdio()
83 writel(0, priv->regs + ETH_REG3); in gxl_enable_external_mdio()
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| D | mdio-mux-gpio.c | 1 // SPDX-License-Identifier: GPL-2.0
8 #include <linux/mdio-mux.h>
15 #define DRV_DESCRIPTION "GPIO controlled MDIO bus multiplexer driver"
33 gpiod_set_array_value_cansleep(s->gpios->ndescs, s->gpios->desc, in mdio_mux_gpio_switch_fn()
34 s->gpios->info, values); in mdio_mux_gpio_switch_fn()
45 gpios = devm_gpiod_get_array(&pdev->dev, NULL, GPIOD_OUT_LOW); in mdio_mux_gpio_probe()
49 s = devm_kzalloc(&pdev->dev, sizeof(*s), GFP_KERNEL); in mdio_mux_gpio_probe()
51 return -ENOMEM; in mdio_mux_gpio_probe()
53 s->gpios = gpios; in mdio_mux_gpio_probe()
55 r = mdio_mux_init(&pdev->dev, pdev->dev.of_node, in mdio_mux_gpio_probe()
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| D | mdio-mux-meson-g12a.c | 1 // SPDX-License-Identifier: GPL-2.0
9 #include <linux/clk-provider.h>
13 #include <linux/mdio-mux.h>
75 val = readl(pll->base + ETH_PLL_CTL0); in g12a_ephy_pll_recalc_rate()
85 u32 val = readl(pll->base + ETH_PLL_CTL0); in g12a_ephy_pll_enable()
89 writel(val, pll->base + ETH_PLL_CTL0); in g12a_ephy_pll_enable()
93 writel(val, pll->base + ETH_PLL_CTL0); in g12a_ephy_pll_enable()
100 return readl_poll_timeout(pll->base + ETH_PLL_CTL0, val, in g12a_ephy_pll_enable()
109 val = readl(pll->base + ETH_PLL_CTL0); in g12a_ephy_pll_disable()
112 writel(val, pll->base + ETH_PLL_CTL0); in g12a_ephy_pll_disable()
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| D | mdio-mux-mmioreg.c | 1 // SPDX-License-Identifier: GPL-2.0
3 * Simple memory-mapped device MDIO MUX driver
11 #include <linux/mdio-mux.h>
26 * MDIO multiplexing switch function
28 * This function is called by the mdio-mux layer when it thinks the mdio bus
29 * multiplexer needs to switch.
31 * 'current_child' is the current value of the mux register (masked via
32 * s->mask).
34 * 'desired_child' is the value of the 'reg' property of the target child MDIO
37 * The first time this function is called, current_child == -1.
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| D | mdio-mux.c | 1 // SPDX-License-Identifier: GPL-2.0
7 #include <linux/mdio-mux.h>
13 #define DRV_DESCRIPTION "MDIO bus multiplexer driver"
40 struct mdio_mux_child_bus *cb = bus->priv; in mdio_mux_read()
41 struct mdio_mux_parent_bus *pb = cb->parent; in mdio_mux_read()
44 mutex_lock_nested(&pb->mii_bus->mdio_lock, MDIO_MUTEX_MUX); in mdio_mux_read()
45 r = pb->switch_fn(pb->current_child, cb->bus_number, pb->switch_data); in mdio_mux_read()
49 pb->current_child = cb->bus_number; in mdio_mux_read()
51 r = pb->mii_bus->read(pb->mii_bus, phy_id, regnum); in mdio_mux_read()
53 mutex_unlock(&pb->mii_bus->mdio_lock); in mdio_mux_read()
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| /linux-6.12.1/Documentation/devicetree/bindings/mux/ |
| D | reg-mux.yaml | 1 # SPDX-License-Identifier: GPL-2.0
3 ---
4 $id: http://devicetree.org/schemas/mux/reg-mux.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Generic register bitfield-based multiplexer controller
10 - Peter Rosin <peda@axentia.se>
19 - reg-mux # parent device of mux controller is not syscon device
20 - mmio-mux # parent device of mux controller is syscon device
24 '#mux-control-cells':
27 mux-reg-masks:
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| /linux-6.12.1/arch/arm64/boot/dts/freescale/ |
| D | fsl-lx2160a-qds.dts | 1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
7 /dts-v1/;
9 #include "fsl-lx2160a.dtsi"
13 compatible = "fsl,lx2160a-qds", "fsl,lx2160a";
23 stdout-path = "serial0:115200n8";
26 sb_3v3: regulator-sb3v3 {
27 compatible = "regulator-fixed";
28 regulator-name = "MC34717-3.3VSB";
29 regulator-min-microvolt = <3300000>;
30 regulator-max-microvolt = <3300000>;
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| D | fsl-lx2162a-qds.dts | 1 // SPDX-License-Identifier: (GPL-2.0 OR MIT)
7 /dts-v1/;
9 #include "fsl-lx2160a.dtsi"
13 compatible = "fsl,lx2162a-qds", "fsl,lx2160a";
23 stdout-path = "serial0:115200n8";
26 sb_3v3: regulator-sb3v3 {
27 compatible = "regulator-fixed";
28 regulator-name = "LTM4619-3.3VSB";
29 regulator-min-microvolt = <3300000>;
30 regulator-max-microvolt = <3300000>;
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| D | fsl-ls1028a-qds.dts | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
11 /dts-v1/;
13 #include "fsl-ls1028a.dtsi"
17 compatible = "fsl,ls1028a-qds", "fsl,ls1028a";
32 stdout-path = "serial0:115200n8";
40 sys_mclk: clock-mclk {
41 compatible = "fixed-clock";
42 #clock-cells = <0>;
43 clock-frequency = <25000000>;
46 reg_1p8v: regulator-1p8v {
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| /linux-6.12.1/include/linux/ |
| D | mdio-mux.h | 2 * MDIO bus multiplexer framwork.
15 /* mdio_mux_init() - Initialize a MDIO mux
16 * @dev The device owning the MDIO mux
17 * @mux_node The device node of the MDIO mux
18 * @switch_fn The function called for switching target MDIO child
19 * mux_handle A pointer to a (void *) used internaly by mdio-mux
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| /linux-6.12.1/arch/arm64/boot/dts/ti/ |
| D | k3-am642-evm-icssg1-dualemac.dtso | 1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
5 * Copyright (C) 2020-2024 Texas Instruments Incorporated - https://www.ti.com/
8 /dts-v1/;
11 #include <dt-bindings/gpio/gpio.h>
12 #include "k3-pinctrl.h"
16 ethernet1 = "/icssg1-eth/ethernet-ports/port@1";
19 mdio-mux-2 {
20 compatible = "mdio-mux-multiplexer";
21 mux-controls = <&mdio_mux>;
22 mdio-parent-bus = <&icssg1_mdio>;
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| D | k3-am642-evm-icssg1-dualemac-mii.dtso | 1 // SPDX-License-Identifier: GPL-2.0-only OR MIT
5 * Copyright (C) 2020-2024 Texas Instruments Incorporated - https://www.ti.com/
8 /dts-v1/;
10 #include <dt-bindings/gpio/gpio.h>
11 #include "k3-pinctrl.h"
15 ethernet1 = "/icssg1-eth/ethernet-ports/port@1";
18 mdio-mux-2 {
19 compatible = "mdio-mux-multiplexer";
20 mux-controls = <&mdio_mux>;
21 mdio-parent-bus = <&icssg1_mdio>;
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| /linux-6.12.1/arch/arm64/boot/dts/amlogic/ |
| D | amlogic-c3.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 #include <dt-bindings/interrupt-controller/irq.h>
7 #include <dt-bindings/interrupt-controller/arm-gic.h>
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/reset/amlogic,c3-reset.h>
10 #include <dt-bindings/clock/amlogic,c3-pll-clkc.h>
11 #include <dt-bindings/clock/amlogic,c3-scmi-clkc.h>
12 #include <dt-bindings/clock/amlogic,c3-peripherals-clkc.h>
13 #include <dt-bindings/power/amlogic,c3-pwrc.h>
14 #include <dt-bindings/gpio/amlogic-c3-gpio.h>
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| D | meson-s4.dtsi | 1 // SPDX-License-Identifier: (GPL-2.0+ OR MIT)
6 #include <dt-bindings/interrupt-controller/irq.h>
7 #include <dt-bindings/interrupt-controller/arm-gic.h>
8 #include <dt-bindings/gpio/gpio.h>
9 #include <dt-bindings/gpio/meson-s4-gpio.h>
10 #include <dt-bindings/clock/amlogic,s4-pll-clkc.h>
11 #include <dt-bindings/clock/amlogic,s4-peripherals-clkc.h>
12 #include <dt-bindings/power/meson-s4-power.h>
13 #include <dt-bindings/reset/amlogic,meson-s4-reset.h>
17 #address-cells = <2>;
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