Tool/software: TI-RTOS
Hello.
I'm using my custom board with AM5728.
My board is working as PCIe-EP device connected with windows PC.
Everything's working fine but reset.
Here is my system.
- Custom board with AM5728
- Working as PCIe EP Device
- PCIe driver on windows is working correct
- Windows can read/write DDR3 memory which is on my board.(working fine)
- My custom SBL initiaize PCIe things
And the problem is..."After I do global warm reset my board."
After I do global warm reset, PCIe link is okay. But the read data by PCIe is all 0xFF.
So, I have few questions.
I guess the problem comes because I re-initialize PCIe after warm reset. Is it correct?
I think there are 2 ways to avoid this problem....
Solution 1. I do warm reset except PCIe parts and my SBL skip PCIe initialize. is this correct way and possible?
If yes, How do I reset except PCIe part?
Solution 2. I guess there is a way to re-initialize PCIe with last link information with PC. Just like..."re-connection with PC"....Is it correct?
If yes, What should I add or change in PCIe initialize sequence? my pcie initialize sequence is almost same as example in pdk.
Help me~~~~~Thank for you....
