TMDS64EVM: PCIe Communication Issue: TMDS64EVM (Root Complex) to Xilinx Endpoint – Driver Not Foun

Tool/software:

Hi TI Team,

I'm working on enabling PCIe communication between the TMDS64EVM board (AM64x) as the Root Complex and a Xilinx board as the Endpoint.

What I've done so far:

1. Enabled the Xilinx PCI controller driver via:

   make menuconfig
   → Device Drivers → PCI Support → PCI Controller Driver → Xilinx PCIe → Enabled
   

2. Saved and copied the defconfig:

   make savedefconfig
   cp defconfig arch/arm64/configs/defconfig
   

3. Rebuilt the kernel using:

   make
   

Issue:

Even after enabling the driver and rebuilding:

• lspci shows no devices.
• dmesg | grep -i pci shows no relevant logs.
• PCIe link doesn’t seem to be established.

Additional Info:

• The physical connection between the boards is verified.
• Endpoint board is powered and configured.
• Using Linux kernel provided in the RT-LINUX-SDK-09.02.01.10.
• No PCIe-related logs in dmesg.

Request:

Could you please help me with:

• Verifying if the AM64x PCIe driver is correctly enabled?
• Any required device tree changes for PCIe on TMDS64EVM?
• Steps to confirm PCIe link status or debug PCIe enumeration?
• How to confirm PCIe enumeration happened with FPGA?

Thanks & Regards,

Ravilla Dinesh.