How to run HUA via SGMII interface 1?

haopeng han

I am porting the HUA app to our board which has C6678. After modified some settings in the platform_lib and the GEL file (basicaly about the SGMII SerDes and DDR3 -- the refclk differs from the EVM), rebuild the project, the HUA app runs well. However, it can only work on SGMII interface 0, what should I do if I want to run the app on SGMII interface 1? (the two SGMII interfaces both connect to PHYs in our platform)

Thanks in advance!

Han

over 13 years ago

0 Aravind Batni over 13 years ago

TI__Expert 8885 points

Not sure if it can work on your board. Can you please try out the following in your board?

The solution could be like modifying the source code and then recompile the dependent applications/libraries.

pdk_C6670*\packages\ti\platform\evmc6670l\platform_lib\src\platform.c
has the list of EMAC ports for the EVM as below.
PLATFORM_EMAC_PORT_MODE emac_port_mode[PLATFORM_MAX_EMAC_PORT_NUM] =
{
PLATFORM_EMAC_PORT_MODE_AMC,
PLATFORM_EMAC_PORT_MODE_PHY
};

EMACInit_Core function under pdk_C6670*\packages\ti\transport\ndk\nimu\src\nimu_eth.c file has the below check.

#ifndef SIMULATOR_SUPPORT
    for (i = 0; i < PLATFORM_MAX_EMAC_PORT_NUM; i++)
    {
        platform_get_emac_info (i, &emac_info);
        if (emac_info.mode == PLATFORM_EMAC_PORT_MODE_PHY)
        {
            break;
        }
    }
    if (i < PLATFORM_MAX_EMAC_PORT_NUM)
    {
        gTxPort = emac_info.port_num;
        memcpy(ptr_pvt_data->pdi.bMacAddr, emac_info.mac_address, 6);
    }
    else
    {
        platform_write ("Error: Unable to find a TX EMAC port\n");
        return -1;
    }
#else
    {
        gTxPort = 1;
        platform_get_emac_info (1, &emac_info);
        memcpy(ptr_pvt_data->pdi.bMacAddr, emac_info.mac_address, 6);
    }
#endif

Looking at this it appers that nimu eth driver is initialing port1 (which ever has *MODE_PHY). So, to use the other port,
interchaning the configurations (like making port0 to have MODE_PHY) might solve your issue.

Please note that after building Platform Lib, please rebuild Nimu_ETH driver and then the application.

-Thanks,
Aravind

0 Sergey Vasilev over 12 years ago in reply to Aravind Batni

Intellectual 280 points

Hi.

I encountered a similar problem.
If you change emac_port_mode, then the work begins the first of port(phy interfaces) found. But only one of them!

I would like to get both working port.
As I understand it requires a different NIMU-driver, with the support of two ports (interfaces) in EMAC
Is there such a driver, and if so, where can I find?

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How to run HUA via SGMII interface 1?