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Recent Changes
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Intel® Agilex® 7 I-Series Transceiver-SoC Development Kit (4x F-Tile) System Example Design With IEEE1588 PTP (25GE/10GE 2-Port)
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Multiprocessor Nios V/m system: creating your first GeMRTOS application
Quick Start Guide on how to create a multiprocessor system with Nios V processor and GeMRTOS support -
Setting up and Using Bridges on Agilex 7 SoC
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Agilex 7 SoC With eMMC Storage On HPS
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Stratix 10 SoC with eMMC Storage on HPS
Table of Contents
| State: | running |
|---|---|
| Members: | QiHuang, FengZhenwei |
Introduction
The network sub-system always plays as an important role in a typical embedded system. The HPS inside SoCFPGA normally just has two Ethernet ports as a hard IP. How to extend Ethernet connect ability to more ports, more various devices (PHY or Networking processor/Switch ASIC)? This design will satisfy this requirement by implementing an Ethernet switch IP inside SoCFPGA, connecting with HPS, NIOSii CPU and external Ethernet ports.System Overview
Once powered on, Nios run firstly. It will communicate with a externel host by Port2 and Port1. When Hps is ready, communication will happen between hps and a externel host by Port0 and Port1.
PS:FES is an Ethernet switch IP block designed to be used in programmable environments. FES includes multiple Ethernet Media Access Controller (MAC) functional entities and provides MII/GMII interfaces for Ethernet PHY devices and optionally for a host system CPU.
Specification
- Implemented on Altera CycloneV SoC Board and Altera Arria 10 SoC Board.
- DDR3 on hps side, shared with FPGA.
- Hps runs Linux; Fpga runs Nios.
Kernel
- kernel can deal with fixed-link package.
- .CONFIG_FIXED_PHY=y.
Driver
flx_frs:Driver creates a Linux net device for each switch port. Net devices of the external ports are attached to PHY devices, if so configured. This allows existing Linux PHY drivers to be used for link mode monitoring in order to keep FES registers synchronized with current link mode. flx_eth_mdio:mdio driver.DeviceTree
Result:
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