PCIe x4 lane on TX2NX
Mar 04, 2024
Hello!
I have a custom carrier board for the TX2NX with 4x PCIe lanes connected to an M.2 slot.
In the pinmux I enabled all PEX0 lanes, flashed BCT .cfg files (both Pad.cfg and Pinmux.cfg) and made these changes to DeviceTree
pcie-controller@10003000 {
status = "okay";
pci@1,0 {
nvidia,num-lanes =
;
nvidia,disable-clock-request;
status = "okay";
};
pci@2,0 {
nvidia,num-lanes = ;
nvidia,disable-clock-request;
status = "disabled";
};
pci@3,0 {
nvidia,num-lanes =
;
nvidia,disable-clock-request;
status = "disabled";
};
};
The SSD works as before in only x2 width as said by lscpi -vvv. What else is needed to do in order to enable 4 lane support?