PROCESSOR-SDK-AM57X: am5708的pcie在dsp端配置问题

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https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1038393/am5708-pcie-tranning-failed

有am5708使用dsp端配置pcie RC端的例程吗

int pcieWaitLinkUp(Pcie_Handle handle,int waitTime)
{
pcieRegisters_t getRegs;

memset (&getRegs, 0, sizeof(getRegs));

#ifdef PCIE_REV0_HW
pcieDebug0Reg_t ltssmStateReg;
getRegs.debug0 = &ltssmStateReg;
#else
pcieTiConfDeviceCmdReg_t ltssmStateReg;
getRegs.tiConfDeviceCmd = &ltssmStateReg;
#endif

memset (&ltssmStateReg, 0, sizeof(ltssmStateReg));

uint8_t ltssmState = 0;

while(ltssmState != pcie_LTSSM_L0 && waitTime>0)
{
if (Pcie_readRegs (handle, pcie_LOCATION_LOCAL, &getRegs) != pcie_RET_OK)
{
PCIE_logPrintf ("Read LTSSM state failed!\n");
return 1;
}
ltssmState = ltssmStateReg.ltssmState;
// Task_sleep(1);
cycleDelay(100000);
waitTime--;
}
if(waitTime)
return 0;
return 1;
}

5708运行时，ltssmState 一直返回  3

5708、5728两个的pcie寄存器、版本等是不是有不一样的地方

5708的pcie的硬件版本是几？看初始化代码里面有分

看pdk_am57xx 1.0.10里面的代码都有分572x,1x,4x；5708的应该不一样，应该怎么配置