Hello, I am using T1040 RDB evalution module and connected my PCIe card into it. Now In my debugging and driver application I need to reset the PCIe add on card. According to the schematics of T1040RDB A11 pin of PCIe connector is connected CPLD IO.
In my PCIe device card, I have connected that PCIe RST line coming from the PCIe connector to the various devices in my PCIe card.
I do not know if there is anyway to toggle that reset signal through the processor.
Please help me kno this.
Have a great day,
There is 8-bit soft reset register RSTCON2 implemented in the CPLD (offset = 11h, CPLD base address = 0xffdf0000). RSTCON2 bit 5 controls that reset signal
PEX_RST
0: No reset occurs.
1: Writing logic 1 produces PCIe x4 slot reset# signal, this bit can auto clear.
This description is from the QorIQ T1040 Reference Design Board User Guide, Rev. 0, 06/2015 available on the NXP site
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