AM6442: Custom Phy Integration Problem

Berlam Karli

Part Number: AM6442
Other Parts Discussed in Thread: DP83640

Hello,

I'm trying to establish an ethernet connection to my "custom board" with a dp83640 model phy. I followed the "Ethernet PHY Integration Guide" and "Custom Board Support" guides in mcu_plus_sdk. I'm testing with the lwip_icssg example. I got these errors:

1-) EnetPhy_readReg: PHY1: failed to read reg 0 : -1
2-) EnetphyMdioDFLT_readC22: PHY1: failed to read reg 0 : -1
3-) EnetMod_ioctl: icssg1-1.mdio: failed to do IOCTL cmd 0x01000605 :-1

Waiting for your helps.

Regard,

Berlam

over 2 years ago

0 Berlam Karli over 2 years ago

Intellectual 340 points

Btw when i enable strapped mode , example seems running correect. I get linkup and linkdown information based on cable state. But i dont receive or send any data.

Best Regards,

Berlam

0 Ashwani Goel over 2 years ago in reply to Berlam Karli

TI__Mastermind 27490 points

Hi Berlam,

Thanks for your query.

I will check it internally. Please allow me a couple of days to get back to you.

Best Regards

Ashwani

0 Ashwani Goel over 2 years ago in reply to Ashwani Goel

TI__Mastermind 27490 points

Hi Berlam,

Can you please give me some more background of the issue ?

You are using AM64x-HSFS board. correct ?
MDIC and MDIO pins are muxed correctly ?
- Same pins (Y6, AA6) as shown below snapshots
Are you able to call mdio APIs without custom PHY driver code integration ?

Best Regards

Ashwani

0 Berlam Karli over 2 years ago in reply to Ashwani Goel

Intellectual 340 points

Hi Ashwani,

1. I am using GP device not HSFS.

2. Yes, our pins are muxed correctly.

3. Actually i dont know that i am able to or not.

Is there any chance that you can make a more detailed Phy driver integration than mcu_plus_sdk ?

Best Regards

Berlam

0 Ashwani Goel over 2 years ago in reply to Berlam Karli

TI__Mastermind 27490 points

Hi Berlam,

Thanks for inputs.

Berlam Karli said:
Is there any chance that you can make a more detailed Phy driver integration than mcu_plus_sdk ?

Let me check and get back to you.

Best Regards

Ashwani

0 Ashwani Goel over 2 years ago in reply to Ashwani Goel

TI__Mastermind 27490 points

Hi Berlam,

Which SDK version you are working on ?

Best Regards

Ashwani

0 Berlam Karli over 2 years ago in reply to Ashwani Goel

Intellectual 340 points

Hi Ashwani

I am working on 08.04 version and tested on 08.05 version by the way.

Best Regards

Berlam

0 Ashwani Goel over 2 years ago in reply to Berlam Karli

TI__Mastermind 27490 points

Hi Berlam,

Thanks for info.

Can you please add below function (test code) in application and update the results / output ?

Note: You need to add in the application code. you can call it in the app main after driver open

Save New Duplicate & Edit Just Text Twitter
#include <kernel/dpl/ClockP.h>

/*! \brief PHY Basic Mode Status Register (BMSR) */
#define PHY_BMSR (0x01U)
void Enet_MdioPhyAddrScan(Enet_Type enetType, uint32_t instId)
{
    EnetApp_HandleInfo handleInfo;
    EnetApp_acquireHandleInfo(enetType, instId, &handleInfo);

    Enet_IoctlPrms prms;
    uint16_t val = 0;
    EnetMdio_C22ReadInArgs inArgs;
    inArgs.group = ENET_MDIO_GROUP_0;
    inArgs.reg   = PHY_BMSR;

    int32_t status;

    EnetAppUtils_print("PHY scan start\r\n");
    for (uint32_t phyAddr = 0; phyAddr < 32; phyAddr++)
    {
        inArgs.phyAddr = phyAddr;
        val = 0;
        ENET_IOCTL_SET_INOUT_ARGS(&prms, &inArgs, &val);
        ENET_IOCTL(handleInfo.hEnet, EnetSoc_getCoreId(), ENET_MDIO_IOCTL_C22_READ, &prms, status);

        if (status == ENET_SOK)
        {
            EnetAppUtils_print("PHY found at addr: %d, val: 0x%x\r\n", inArgs.phyAddr, val);
        }
        else
        {
            EnetAppUtils_print("NO PHY found at addr: %d\r\n", phyAddr);
        }
        ClockP_sleep(1);
    }
    EnetAppUtils_print("PHY scan completed\r\n");
}

Best Regards

Ashwani

Processors

Processors forum

AM6442: Custom Phy Integration Problem