TDA4VH-Q1: The issue of tampering with the value of the bar memory allocated by PCIe on sdk0902

quansheng zhu

Part Number: TDA4VH-Q1

Tool/software:

https://e2e.ti.com/support/processors-group/processors/f/processors-forum/1360433/tda4vh-q1-how-to-modify-pcie-shared-memory-size-to-1gb

According to the patch "0001-Change-PCIe1-memory-space-to-PCIE1_DAT1.patch" used in the above link, there is no problem with testing on SDK0805. However, when testing on sdk0902, there may be issues with certain memory points being modified on the bar, as shown in the following figure. Writing a value of 0xB0B0B0B0 to memory point 0x4124406005 on a certain bar on the RC end will cause a change in value after one or two seconds. Please help confirm if this patch is also used on SDK0902?

5 months ago

0 Takuma Fujiwara 5 months ago

TI__Mastermind 35592 points

Hi Quansheng,

The patch is an out of tree patch created solely for the purpose of quickly giving you a way to test PCIe DAT1 space. Our development team and main experts plan to develop, test, and integrate into SDK in 1 year. Unfortunately, until then, the patch will be experimental.

Regards,

Takuma

0 Semon Zhang 18 days ago

TI__Expert 6091 points

Hello Mr Zhu

how about the status of this issue?

Regards

Semon

0 Praveen Rao 16 days ago in reply to Semon Zhang

TI__Mastermind 36402 points

Hi,

Our expert is out of the office on the Thanksgiving holiday; please expect a delayed response until next week.

Thanks.

0 Takuma Fujiwara 9 days ago in reply to Praveen Rao

TI__Mastermind 35592 points

Hi Semon/Zhu,

Let me know if there is a pending action on TI for this thread.

Regards,

Takuma

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TDA4VH-Q1: The issue of tampering with the value of the bar memory allocated by PCIe on sdk0902