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/**
* @file
*
* ALIB PSPP Pcie Smu Lib V1
*
*
*
* @xrefitem bom "File Content Label" "Release Content"
* @e project: AGESA
* @e sub-project: GNB
* @e \$Revision: 63425 $ @e \$Date: 2011-12-22 11:24:10 -0600 (Thu, 22 Dec 2011) $
*
*/
/*
*****************************************************************************
*
* Copyright 2008 - 2012 ADVANCED MICRO DEVICES, INC. All Rights Reserved.
*
* AMD is granting you permission to use this software (the Materials)
* pursuant to the terms and conditions of your Software License Agreement
* with AMD. This header does *NOT* give you permission to use the Materials
* or any rights under AMD's intellectual property. Your use of any portion
* of these Materials shall constitute your acceptance of those terms and
* conditions. If you do not agree to the terms and conditions of the Software
* License Agreement, please do not use any portion of these Materials.
*
* CONFIDENTIALITY: The Materials and all other information, identified as
* confidential and provided to you by AMD shall be kept confidential in
* accordance with the terms and conditions of the Software License Agreement.
*
* LIMITATION OF LIABILITY: THE MATERIALS AND ANY OTHER RELATED INFORMATION
* PROVIDED TO YOU BY AMD ARE PROVIDED "AS IS" WITHOUT ANY EXPRESS OR IMPLIED
* WARRANTY OF ANY KIND, INCLUDING BUT NOT LIMITED TO WARRANTIES OF
* MERCHANTABILITY, NONINFRINGEMENT, TITLE, FITNESS FOR ANY PARTICULAR PURPOSE,
* OR WARRANTIES ARISING FROM CONDUCT, COURSE OF DEALING, OR USAGE OF TRADE.
* IN NO EVENT SHALL AMD OR ITS LICENSORS BE LIABLE FOR ANY DAMAGES WHATSOEVER
* (INCLUDING, WITHOUT LIMITATION, DAMAGES FOR LOSS OF PROFITS, BUSINESS
* INTERRUPTION, OR LOSS OF INFORMATION) ARISING OUT OF AMD'S NEGLIGENCE,
* GROSS NEGLIGENCE, THE USE OF OR INABILITY TO USE THE MATERIALS OR ANY OTHER
* RELATED INFORMATION PROVIDED TO YOU BY AMD, EVEN IF AMD HAS BEEN ADVISED OF
* THE POSSIBILITY OF SUCH DAMAGES. BECAUSE SOME JURISDICTIONS PROHIBIT THE
* EXCLUSION OR LIMITATION OF LIABILITY FOR CONSEQUENTIAL OR INCIDENTAL DAMAGES,
* THE ABOVE LIMITATION MAY NOT APPLY TO YOU.
*
* AMD does not assume any responsibility for any errors which may appear in
* the Materials or any other related information provided to you by AMD, or
* result from use of the Materials or any related information.
*
* You agree that you will not reverse engineer or decompile the Materials.
*
* NO SUPPORT OBLIGATION: AMD is not obligated to furnish, support, or make any
* further information, software, technical information, know-how, or show-how
* available to you. Additionally, AMD retains the right to modify the
* Materials at any time, without notice, and is not obligated to provide such
* modified Materials to you.
*
* U.S. GOVERNMENT RESTRICTED RIGHTS: The Materials are provided with
* "RESTRICTED RIGHTS." Use, duplication, or disclosure by the Government is
* subject to the restrictions as set forth in FAR 52.227-14 and
* DFAR252.227-7013, et seq., or its successor. Use of the Materials by the
* Government constitutes acknowledgement of AMD's proprietary rights in them.
*
* EXPORT ASSURANCE: You agree and certify that neither the Materials, nor any
* direct product thereof will be exported directly or indirectly, into any
* country prohibited by the United States Export Administration Act and the
* regulations thereunder, without the required authorization from the U.S.
* government nor will be used for any purpose prohibited by the same.
* ***************************************************************************
*
*/
/*----------------------------------------------------------------------------------------*/
/**
* Request VID
*
* Arg0 - 1 - GEN1 2 - GEN2
* Arg1 - 0 = do not wait intil voltage is set
* 1 = wait until voltage is set
*/
Method (procPcieSetVoltage, 2, Serialized) {
Store ("PcieSetVoltage Enter", Debug)
// Get real vid by index
if (LEqual (Arg0, DEF_LINK_SPEED_GEN1)) {
Store (DeRefOf (Index (varSclkVid, varGen1Vid)), local3)
} else {
Store (DeRefOf (Index (varSclkVid, varGen2Vid)), local3)
}
// GMMx63C/GMMx640 -- CG_Reg = reg - 0x600
// Store REQ in local2
And (procIndirectRegisterRead (0x0, 0xB8, 0xE000203C), 0x4, Local2)
// Store ACK in local1
And (procIndirectRegisterRead (0x0, 0xB8, 0xE0002040), 0x1, Local1)
// Compare REQ with ACK
while (LNotEqual (ShiftLeft(Local1, 0x2), Local2)) {
And (procIndirectRegisterRead (0x0, 0xB8, 0xE0002040), 0x1, Local1)
}
Store (procIndirectRegisterRead (0x0, 0xB8, 0xE000203C), Local1)
//Enable voltage change
if (LEqual (Arg0, DEF_LINK_SPEED_GEN1)) {
And (Local1, 0xFFFFFFFD, Local1)
} else {
Or (Local1, 0x2, Local1)
}
procIndirectRegisterWrite (0x0, 0xB8, 0xE000203C, Local1)
//Clear voltage index
And (Local1, Not (ShiftLeft (0xFF, 8)), Local1)
Store (Concatenate (" Voltage Index:", ToHexString (local3), Local6), Debug)
//Set new voltage index
Or (Local1, ShiftLeft (local3, 8), Local1)
//Togle request
And (Not (Local1), 0x4, Local2)
Or (And (Local1, Not (0x4)), Local2, Local1)
procIndirectRegisterWrite (0x0, 0xB8, 0xE000203C, Local1)
if (LNotEqual (Arg1, 0)) {
while (LNotEqual (ShiftLeft(Local1, 0x2), Local2)) {
And (procIndirectRegisterRead (0x0, 0xB8, 0xE0002040), 0x1, Local1)
}
}
Store ("PcieSetVoltage Exit", Debug)
}
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