Hello,
I have the same issue as https://community.nxp.com/t5/i-MX-Processors/i-MX8-QuadXPlus-GPIO-configuration/td-p/1404411
Could you provide details why the PCIE_CTRL0_WAKE_B is always high on i.MX8 QuadXPlus MEK, I checked that there is a pull up resistor, can this signal be low?
Could you please also let me know how to enable wakeup on that PCIE pin coming from wifi module? I am using linux-imx-6.1
Best regards,
Mohamed Ali
Hi @riteshmpatel,
Thank you but in evk it seems that the wifi module doesn't use PCIE_CTRL0_WAKE_B for wakeup? Shall I configure PCIE_CTRL0_WAKE_B from SCFW as wakeup event coming from PCIe wifi module? Where I can find an example code?
Best regards,
Mohamed Ali
Hi @mohamed-ali_fod,
I hope you are doing well.
Please accept my apologies for the delay in response.
PCIE_CTRL0_WAKE_B because it's input Pin. PCIE EP pulls it down.
One can refer to wifi_wake_host in imx8mp-evk.dts
Thanks & Regards,
Ritesh M Patel