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Linux/AM5718: PCIe protocol stack

Infant Jesuraj
Intellectual 610 points
Part Number: AM5718


Tool/software: Linux

Hello,

Is the PCIe protocol stack included as part of the SDK provided with AM572x EVM?

Regards,

Infant J

  • 0
    TI__Guru**** 393215 points
    The Linux SDK includes both EP and RC drivers for PCIe. You can check the Software Manifest on the SDK download page for software included in the SDK.
  • 0 in reply to Biser Gatchev-XID
    Intellectual 610 points
    If the RTOS SDK (processors.wiki.ti.com/.../Processor_SDK_RTOS_PCIe) is used, then does it mean it does not need any other drivers (PCIe Stack Layer code) ?

    The AM57X EVM will be used as a endpoint installed in a desktop PC (windows/Linux) which will be the root complex. Are drivers required to be installed on the desktop PC for this setup? If yes, Will TI provide the drivers? Or the Desktop PC (windows/linux) include the required drivers on the kernel?
  • 0 in reply to Infant Jesuraj
    TI__Guru* 95265 points
    Hi,

    No, using an AM572x EVM as a PCIE EP to connect to a PC as PCIE RC is not supported. The typical requirement for this usage is:
    1) RC provides the power supply to EP
    2) RC provides the PCIE reference clock (spread spectrum) to EP
    3) EP accepts the reset signal from RC
    4) RC sides has PCIE driver for enumeration, configure the EP BAR, translation, interrupt ....

    From hardware side, the AM572x EVM is wired primarily to be a RC, it drives clock/power/reset to the PCIE pin. So it has to be modified to accept power/clock/reset from host PC.

    From the software side, we don't have any driver for this.

    Regards, Eric