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TMDXIDK5718: phy configuration

Sukanya Karunakaran
Intellectual 445 points

Part Number: TMDXIDK5718

Hi,

In the example client application -CPSW (in RTOS)for idkam5718 board I am unable to find any function which configures the phy for autonegotiation.My requirement is to establish a 100mbps link without autonegotiation.How can I do this?

CCS V9

PDK 1.0.15

NDK 3.60.0.13

SYS/BIOS 6.75.2.00

  • 0
    Intellectual 445 points

    Hi ,

    Can someone help me on this?

  • 0 in reply to Sukanya Karunakaran
    TI__Guru 50045 points

    Please refer to the below file.

    ~/pdk_am57xx_1_0_17/packages/ti/board/src/idkAM571x/device/enet_phy.c

    You can use ENETPHY_SetPhyMode() to configure the link speed.

  • 0 in reply to Stanley Liu
    Intellectual 445 points

    Hi,

    Thanks for the reply.

    I tried with your suggestion.

    That function is not helping.I cant see any phy register writes in it.There are only print functions.I added this function in the  main file as mentioned below.Is it the right way?

    /* Select RGMII 2 ports GMIIx_SEL = 2 for RGMII*/
    CSL_FINS (((CSL_control_coreRegs *) CSL_MPU_CTRL_MODULE_CORE_CORE_REGISTERS_REGS)->CONTROL_IO_1,
    CONTROL_CORE_CONTROL_IO_1_GMII1_SEL, 2U);
    CSL_FINS (((CSL_control_coreRegs *) CSL_MPU_CTRL_MODULE_CORE_CORE_REGISTERS_REGS)->CONTROL_IO_1,
    CONTROL_CORE_CONTROL_IO_1_GMII2_SEL, 2U);

    /*GMAC RESET ISOLATION Enable*/
    CSL_FINS (((CSL_control_coreRegs *) CSL_MPU_CTRL_MODULE_CORE_CORE_REGISTERS_REGS)->CONTROL_IO_2,
    CONTROL_CORE_CONTROL_IO_2_GMAC_RESET_ISOLATION_ENABLE, 0U);
    CSL_FINS (((CSL_control_coreRegs *) CSL_MPU_CTRL_MODULE_CORE_CORE_REGISTERS_REGS)->CONTROL_IO_2,
    CONTROL_CORE_CONTROL_IO_2_GMAC_RESET_ISOLATION_ENABLE, 1U);

    EMAC_socGetInitCfg(0, &emac_cfg);
    phyDev.miibase = emac_cfg.mdio_base;
    ENETPHY_SetPhyMode((ENETPHY_Handle) &phyDev,NWAY_FD100);

    Other than getting a print statement in hyperterminal.The negotiated connection is not changing to 10Mbps.

  • 0 in reply to Stanley Liu
    Intellectual 445 points

    Hi ,

    int32_t ENETPHY_Tic(ENETPHY_Handle hPhyDev,uint32_t* mdioStatus) .Where is this function called in main.I am not able to understand .Someone please help.