PCIe EP device getting failed to enumerate always












1















I have a pcie EP(Endpoint) device & host Linux PC is acting as RC(Root-Complex).
Setup Info: For Linkup, I turn on the host PC & then turn on EP device (as the clock is coming from host PC) & run pll-lock script for EP device & then I restart the PC(without full power-cycle).



Issue: Now, my EP will be enumerated sometimes only(3 out of 10) times but once link-up,restarting the host PC or power-cycling the EP device will result in linkup always.
Is this related to BIOS/PCIe bus syncing? What may be the cause?Any suggestions.










share|improve this question

























  • Someone please help on this asap..

    – Abhinav kumar
    Jan 28 at 8:00
















1















I have a pcie EP(Endpoint) device & host Linux PC is acting as RC(Root-Complex).
Setup Info: For Linkup, I turn on the host PC & then turn on EP device (as the clock is coming from host PC) & run pll-lock script for EP device & then I restart the PC(without full power-cycle).



Issue: Now, my EP will be enumerated sometimes only(3 out of 10) times but once link-up,restarting the host PC or power-cycling the EP device will result in linkup always.
Is this related to BIOS/PCIe bus syncing? What may be the cause?Any suggestions.










share|improve this question

























  • Someone please help on this asap..

    – Abhinav kumar
    Jan 28 at 8:00














1












1








1








I have a pcie EP(Endpoint) device & host Linux PC is acting as RC(Root-Complex).
Setup Info: For Linkup, I turn on the host PC & then turn on EP device (as the clock is coming from host PC) & run pll-lock script for EP device & then I restart the PC(without full power-cycle).



Issue: Now, my EP will be enumerated sometimes only(3 out of 10) times but once link-up,restarting the host PC or power-cycling the EP device will result in linkup always.
Is this related to BIOS/PCIe bus syncing? What may be the cause?Any suggestions.










share|improve this question
















I have a pcie EP(Endpoint) device & host Linux PC is acting as RC(Root-Complex).
Setup Info: For Linkup, I turn on the host PC & then turn on EP device (as the clock is coming from host PC) & run pll-lock script for EP device & then I restart the PC(without full power-cycle).



Issue: Now, my EP will be enumerated sometimes only(3 out of 10) times but once link-up,restarting the host PC or power-cycling the EP device will result in linkup always.
Is this related to BIOS/PCIe bus syncing? What may be the cause?Any suggestions.







linux bios pci-express






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share|improve this question













share|improve this question




share|improve this question








edited Jan 27 at 16:07







Abhinav kumar

















asked Jan 27 at 15:59









Abhinav kumarAbhinav kumar

163




163













  • Someone please help on this asap..

    – Abhinav kumar
    Jan 28 at 8:00



















  • Someone please help on this asap..

    – Abhinav kumar
    Jan 28 at 8:00

















Someone please help on this asap..

– Abhinav kumar
Jan 28 at 8:00





Someone please help on this asap..

– Abhinav kumar
Jan 28 at 8:00










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