How we can invalidation the Power saving state in PCIe Gen1?

[toshihiro_kambe]

Hi community

I am using a custom board that design based on NXP i.MX6Q sabreauto board,
and we need to run PCIe device on our custom board.

We must use Yocto Sumo(linux kernel 4.14.78) environment.
We would like to invalidation the Power saving state of PCIe(L0s,L1).

How we can invalidation the Power saving state(not transition from L0) in PCIe Gen1?

Best regards,
Toshihiro Kambe

[weidong_sun]

Hi Toshihiro ,

   L1 & L0s are not related to GEN1/GEN2. For PCIE, as long as RC and EP support it, it can be enabled.

Have a nice day!

B.R,

weidong