Phy device主要是对phy的抽象,而net_device主要是对mac的抽象,而mdio总线以及mii_bus主要用于对phy设备的控制(包括设置phy设备的工作模式、速率模式、是否为自适应、phy的link状态等),而net_device需要根据phy的工作模式、速率模式、phy的link状态进行状态的同步,因此需要将net_device与phy device进行绑定与解绑。本章...
Cc: net...@vger.kernel.org Cc: devicetree-discuss@lists.ozlabs.org Cc: Sekhar Nori <nsek...@ti.com> Cc: Heiko Schocher <h...@denx.de> --- Changes for v2: none Changes for v3: a> Added pin entries for mdio. arch/arm/boot/dts/da850-evm.dts | 6 +++++ arch/arm/boot/dt...
The invention provides a device for extending an MDIO interface through parallel buses and a realizing method thereof. The device comprises an MPU (microprocessor unit), a CPLD (complex programmable logic device) and a Switch, wherein the MPU includes the parallel buses; the CPLD is provided ...
…ror handling The current code in __mdiobus_register() doesn't properly handle failures returned by the devm_gpiod_get_optional() call: it returns immediately, without unregistering the device that was added by the call to device_register() earlier in the function. This leaves a stale devi...
-in the call to bus_find_device_by_name(&mdio_bus_type, NULL, bus_id); what is mdio_bus_type ? is it of type mii_bus and the device is beeing reseached in the array struct phy_device *phy_map[PHY_MAX_ADDR]; ? Why the call to bus_find_device_by_name should fail ? thanks...
A device expanding an MDIO interface through a parallel bus comprises an MPU, a CPLD and a switch. The MPU comprises the parallel bus. The CPLD is a programmable device with the function that the parallel bus is converted to MDIO. The switch is a network transmitting chip which comprises ...
An Ethernet device comprises a plurality of Management Data Input/Output (MDIO) Manageable Device (MMD) registers storing Ethernet register field definitions that operate a management interface to one or more MMD devices. An MDIO controller, communicatively coupled to the plurality of MMD registers ...
An Ethernet device comprises a plurality of Management Data Input/Output (MDIO) Manageable Device (MMD) registers storing Ethernet register field definitions that operate a management interface to one or more MMD devices. An MDIO controller, communicatively coupled to the plurality of MMD registers ...
An Ethernet device comprises a plurality of Management Data Input/Output (MDIO) Manageable Device (MMD) registers storing Ethernet register field definitions that operate a management interface to one or more MMD devices. An MDIO controller, communicatively coupled to the plurality of MMD registers ...
The peripheral interface is coupled with the upper device with the MDIO bus, and the CPU with the parallel bus. The upper device acquires one of the conditions by defining the address of the MDIO register and receiving data through the peripheral interface....