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PROCESSOR-SDK-J721E: J721EXSKG01EVM

nie mingwang
Prodigy 50 points
Part Number: PROCESSOR-SDK-J721E

Hi,

    I want complete the function that cpsw2 can connect cpsw9 by the way of mac to mac. But the cpsw2 is controlled by A72 core not R5 core, then what should I do? My linux sdk version is 08_02_00, rtos sdk version is 08_02_00_06

  • 0
    TI__Mastermind 38370 points

    Hi, 

    For MAC2MAC connections, you would need a fixed-link node in the ethernet port node of mcu_cpsw. You would need to update the "cpsw_port1" node in "[PSDK-Linux Istall Dir]/board-support/linux-[Commit-hash]/arch/arm64/boot/dts/ti/k3-j721e-common-proc-board.dts" to include the fixed-link node. You also have to remove the "phy-handle" property in "cpsw_port1" node. Reference :

    &cpsw_port1 {
    phy-mode = "rgmii-rxid";
//    phy-handle = <&phy0>;
   fixed-link {
        speed = <1000>;
        full-duplex;
    };
};