SNLA450 July   2024 DP83822H , DP83822HF , DP83822I , DP83822IF , DP83826E , DP83826I , DP83848-EP , DP83848Q-Q1 , DP83867CR , DP83867CS , DP83867E , DP83867IR , DP83867IS , DP83TC812R-Q1 , DP83TC812S-Q1 , DP83TC813R-Q1 , DP83TC813S-Q1 , DP83TC814R-Q1 , DP83TC814S-Q1 , DP83TG720R-Q1 , DP83TG720S-Q1 , DP83TG721R-Q1 , DP83TG721S-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Texas Instruments Ethernet PHY Drivers
  5. 2Ethernet PHY Driver Overview
    1. 2.1 Exploring Linux Driver Types
      1. 2.1.1 U-Boot Driver
      2. 2.1.2 Kernel Driver
  6. 3Driver Integration
    1. 3.1 Linux Device Tree
    2. 3.2 Integrating Driver
  7. 4Common Terminal Commands
    1. 4.1 Initialization Commands
      1. 4.1.1 dmesg | grep -i mdio
      2. 4.1.2 ifconfig
    2. 4.2 Functional Commands
      1. 4.2.1 Phytool
      2. 4.2.2 Ethtool
      3. 4.2.3 Forced Master/Slave
    3. 4.3 Diagnostic Commands
      1. 4.3.1 SQI
      2. 4.3.2 TDR
      3. 4.3.3 Throughput Testing - Ping and iPerf
  8. 5Summary
  9. 6References

5 Summary

This application note provides a comprehensive overview of basic Linux PHY driver terminology, guiding users through the integration of a new Ethernet driver into a system and offering insights into common terminal commands for debugging purposes. From foundational concepts to practical implementation, this resource equips developers with the knowledge and tools necessary to navigate the complexities of Linux driver development efficiently.