F28M35H52C1 Ethernet Concerto card

hi：

I am working with F28M35H52C1 Concerto  Card . I can not excaute enet_uip applied by controlsuite version  lower than 3.3.1 which halt  the second while in  ethernet.c . 

as follow :

void EthernetPHYWrite(unsigned long ulBase, unsigned char ucRegAddr,unsigned long ulData)
{
// Check the arguments.
ASSERT(ulBase == ETH_BASE);

// Wait for any pending transaction to complete.
while(HWREG(ulBase + MAC_O_MCTL) & MAC_MCTL_START)
{
}

// Program the DATA to be written.
HWREG(ulBase + MAC_O_MTXD) = ulData & MAC_MTXD_MDTX_M;

// Program the PHY register address and initiate the transaction.
HWREG(ulBase + MAC_O_MCTL) = (((ucRegAddr << 3) & MAC_MCTL_REGADR_M) |
MAC_MCTL_WRITE | MAC_MCTL_START);

// Wait for the write transaction to complete.
while(HWREG(ulBase + MAC_O_MCTL) & MAC_MCTL_START)
{
}
}

I am sure the hardware setting is correct.

So,what i can do ?