SPRACU5C June 2021 – September 2023 AM2431 , AM2432 , AM2434 , AM6411 , AM6412 , AM6421 , AM6422 , AM6441 , AM6442
Before using the MDIO interface, see the advisory i2329 MDIO: MDIO interface corruption (CPSW and PRU_ICSS) of the device-specific silicon errata.
If the selected processor and the silicon revision being used is affected by the silicon errata, there is a work around implemented by the driver. The driver reads the device JTAG ID and configures the MDIO to use manual (bit bang) mode.
Refer section Peripherals, High-speed Serial Interfaces, Gigabit Ethernet Switch (CPSW3G), CPSW0 Functional Description, MDIO Interrupts for information related to MDIO modes and Introduction, Device Identification for JTAG ID of the device-specific TRM