| /** |
| * @file |
| * |
| * ALIB PSPP Pcie Smu Lib V1 |
| * |
| * |
| * |
| * @xrefitem bom "File Content Label" "Release Content" |
| * @e project: AGESA |
| * @e sub-project: GNB |
| * @e \$Revision: 61048 $ @e \$Date: 2011-10-31 12:20:41 +0800 (Mon, 31 Oct 2011) $ |
| * |
| */ |
| /* |
| ***************************************************************************** |
| * |
| * Copyright (c) 2008 - 2012, Advanced Micro Devices, Inc. |
| * All rights reserved. |
| * |
| * Redistribution and use in source and binary forms, with or without |
| * modification, are permitted provided that the following conditions are met: |
| * * Redistributions of source code must retain the above copyright |
| * notice, this list of conditions and the following disclaimer. |
| * * Redistributions in binary form must reproduce the above copyright |
| * notice, this list of conditions and the following disclaimer in the |
| * documentation and/or other materials provided with the distribution. |
| * * Neither the name of Advanced Micro Devices, Inc. nor the names of |
| * its contributors may be used to endorse or promote products derived |
| * from this software without specific prior written permission. |
| * |
| * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY |
| * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| * *************************************************************************** |
| * |
| */ |
| /*----------------------------------------------------------------------------------------*/ |
| /** |
| * 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) |
| Store (procIndirectRegisterRead (0x0, 0x60, 0xEA), Local1) |
| //Enable voltage change |
| Or (Local1, 0x2, Local1) |
| procIndirectRegisterWrite (0x0, 0x60, 0xEA, Local1) |
| //Clear voltage index |
| And (Local1, Not (ShiftLeft (0x3, 3)), Local1) |
| |
| if (LEqual (Arg0, DEF_LINK_SPEED_GEN1)) { |
| Store (varGen1Vid, Local3) |
| } else { |
| Store (varGen2Vid, Local3) |
| } |
| |
| Store (Concatenate (" Voltage Index:", ToHexString (Local3), Local6), Debug) |
| //Set new voltage index |
| Or (Local1, ShiftLeft (Local3, 3), Local1) |
| //Togle request |
| And (Not (Local1), 0x4, Local2) |
| Or (And (Local1, Not (0x4)), Local2, Local1) |
| procIndirectRegisterWrite (0x0, 0x60, 0xEA, Local1) |
| if (LNotEqual (Arg1, 0)) { |
| while (LNotEqual (ShiftLeft(Local1, 0x2), Local2)) { |
| And (procIndirectRegisterRead (0x0, 0x60, 0xEB), 0x1, Local1) |
| } |
| } |
| Store ("PcieSetVoltage Exit", Debug) |
| } |