MTS Firmware Engineer

AGESA™--Arch2008

TBLDRV_SPEEDLIMIT_CONFIG_TO_OVERRIDE

Prototype

TBLDRV_SPEEDLIMIT_CONFIG_TO_OVERRIDE (DimmPerCH, Dimms, NumOfSR, NumOfDR,

NumOfQR, NumOfLRDIMM)

Parameters

DimmPerCH

Number of DIMM slots in a channel.

Dimms

Number of DIMMs in a channel.

NumOfSR

Number of Single rank DIMMs in a channel

NumOfDR

Number of dual rank DIMMs in a channel

NumOfQR

Number of Quad rank DIMMs in a channel

NumOfLRDIMM

Number of LR-DIMMs (Load reduce DIMMs) in a channel

Description

This configuration macro is only used with memory speed limit override macro, it specifies what kind of configuration that applies the override.

NumOfLRDIMM should be stated as "NA_" in a normal DIMM type platform. NumOfSR,

NumOfDR and NumOfQR should be stated as NA_ in a LR-DIMM type platform, vice versa.

Example:

TBLDRV_SPEEDLIMIT_CONFIG_TO_OVERRIDE (2, 2, 0, 0, NA_),

TBLDRV_CONFIG_ENTRY_SPEEDLIMIT (DDR1600_FREQUENCY,

DDR1333_FREQUENCY,

DDR1066_FREQUENCY),

Dependencies

Only TBLDRV_CONFIG_ENTRY_SPEEDLIMIT override macro can be associated with this configuration macro.

Appendix C Memory Details

308