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C6678 SGMII0 link is not up.

Sean
Prodigy 10 points

Hi

We have a custom board with 4 C6678 DSPs connecting to a Marvell quad PHY 88E1240 through SGMII0 port.
I run internal emac loopback test using your PA_emacExample_exampleProject (change port from SGMII1 to SGMII0),
the test is passed without checking SGMII Link status. When I try to test with SGMII Link check,
the software enters forever while loop, the link is not up.

do
{
    CSL_SGMII_getStatus(macPortNum, &sgmiiStatus);
} while (sgmiiStatus.bIsLinkUp != 1);


Can You tell me what will be an issue to cause the SGMII link is not up?

Thanks

Sean