31:0

0h

RW

ASL Over-rides [26:0] (ASLOR)

This field provides ASL code to take over SPD power gating control. If ASL code sets a bit corresponding to a controller, it implies that PMC shall ignore any other inputs from that controller and assume that the controller is ready for SPD power gating.
0 in a bit position: Use HW interfaces for the controller to manage SPD gating/wake-up.
1 in a bit position: Ignore HW interfaces for the controller, rely only on MSPDRTReq field thats managed by ASL code.
Bit 0: Corresponds to PCIe Controller A, Function 0
Bit 1: Corresponds to PCIe Controller A, Function 1
Bit 2: Corresponds to PCIe Controller A, Function 2
Bit 3: Corresponds to PCIe Controller A, Function 3
Bit 4: Corresponds to PCIe Controller B, Function 0
Bit 5: Corresponds to PCIe Controller B, Function 1
Bit 6: Corresponds to PCIe Controller B, Function 2
Bit 7: Corresponds to PCIe Controller B, Function 3
Bit 8: Corresponds to PCIe Controller C, Function 0
Bit 9: Corresponds to PCIe Controller C, Function 1
Bit 10: Corresponds to PCIe Controller C, Function 2
Bit 11: Corresponds to PCIe Controller C, Function 3
Bit 12: Corresponds to SATA Controller
Bit 13: Corresponds to Gbe Controller
Bit 14: Corresponds to xHCI Controller
Bit 15: Corresponds to xDCI Controller
Bit 16: Corresponds to UFS Controller
Bit 17: Corresponds to PCIe Controller D, Function 0
Bit 18: Corresponds to PCIe Controller D, Function 1
Bit 19: Corresponds to PCIe Controller D, Function 2
Bit 20: Corresponds to PCIe Controller D, Function 3
Bit 21: Corresponds to PCIe Controller E, Function 0
Bit 22: Corresponds to PCIe Controller E, Function 1
Bit 23: Corresponds to PCIe Controller E, Function 2
Bit 24: Corresponds to PCIe Controller E, Function 3
Bit 25: Corresponds to DMI Controller
Bit 26: Corresponds to UFS Controller 2
Bit 27: Corresponds to PCIe Controller F, Function 0
Bit 28: Corresponds to PCIe Controller F, Function 1
Bit 29: Corresponds to PCIe Controller F, Function 2
Bit 30: Corresponds to PCIe Controller F, Function 3
Bit 31: Reserved
This field is going to be used in conjunction with MSPDRTReq and MSPDRTRAck fields above. If ASL code intends to over-ride HW decisions, it will set the corresponding bit for a controller/function to 1 in ASLOR and use MSPDRTReq bits to power-up/power-down SPD.