EVM with PCIe

Andriy Lysnevych

Other Parts Discussed in Thread: TMDXEVMPCI

Hello,

I have TMDSEVM6678L and TMDXEVMPCI (AMC to PCIe adapter). I want to use Desktop Linux SDK features with it.

Desktop Linux SDK 1.0.0.4 documentation says:

> This release is supported on the following hardware platform: Linux Desktop with Single C6678 EVM - TMDSEVM6678 with TMDXEVMPCI (AMC to PCIe Adapter Card)

When plug the device it works but not visible through PCIe interface - list of devices in lspci and in /sys does not change when I insert the card.

And because of this udev script ftom Desktop Linux SDK, that searches for "$vendor_value" = "0x104c" -a "$device_value" = "0xb005" also fails.

So I assume that the device is not visible among PCI devices for Linux at all. Why is it so?

Regards,

Andriy Lysnevych

over 12 years ago

0 Steven Ji over 12 years ago

TI__Genius 12065 points

Andriy,

Could you please take a look at the other threads discussing the similar issue such as follows?

http://e2e.ti.com/support/dsp/c6000_multi-core_dsps/f/639/p/222043/783343.aspx#783343

Most of the time, the IBL update or switching to another Linux host might solve the issues.

Hope it helps.

0 Andriy Lysnevych over 12 years ago in reply to Steven Ji

Intellectual 285 points

Unfortunately updating IBL using latest MCSDK didn't help. Also my Linux host hangs when I reboot it when the card is inserted (poweroff and then poweron works ok).

0 Andriy Lysnevych over 12 years ago in reply to Andriy Lysnevych

Intellectual 285 points

So is there a way to figure out why EVM plugged into PCIe is not enumerating on specific host?

0 Steven Ji over 12 years ago in reply to Andriy Lysnevych

TI__Genius 12065 points

Andriy,

Most of the issue might be due to the reference clock (such as SSC) in the host. The updated IBL should have the fix to support SSC for C66x device.

When you plug EVM into the host PCIe slot, could you connect the JTAG to the EVM and verify what is the PC (program counter) register value in the CCS memory view please?

We would like to see which place the PCIe boot code is stuck at during the enumeration.

Processors

Processors forum

EVM with PCIe