| zbao | 7d94cf9 | 2012-07-02 14:19:14 +0800 | [diff] [blame] | 1 | /** |
| 2 | * @file |
| 3 | * |
| 4 | * ALIB PSPP Pcie Smu Lib V1 |
| 5 | * |
| 6 | * |
| 7 | * |
| 8 | * @xrefitem bom "File Content Label" "Release Content" |
| 9 | * @e project: AGESA |
| 10 | * @e sub-project: GNB |
| 11 | * @e \$Revision: 61048 $ @e \$Date: 2011-10-31 12:20:41 +0800 (Mon, 31 Oct 2011) $ |
| 12 | * |
| 13 | */ |
| 14 | /* |
| 15 | ***************************************************************************** |
| 16 | * |
| Siyuan Wang | 641f00c | 2013-06-08 11:50:55 +0800 | [diff] [blame] | 17 | * Copyright (c) 2008 - 2012, Advanced Micro Devices, Inc. |
| 18 | * All rights reserved. |
| 19 | * |
| 20 | * Redistribution and use in source and binary forms, with or without |
| 21 | * modification, are permitted provided that the following conditions are met: |
| 22 | * * Redistributions of source code must retain the above copyright |
| 23 | * notice, this list of conditions and the following disclaimer. |
| 24 | * * Redistributions in binary form must reproduce the above copyright |
| 25 | * notice, this list of conditions and the following disclaimer in the |
| 26 | * documentation and/or other materials provided with the distribution. |
| 27 | * * Neither the name of Advanced Micro Devices, Inc. nor the names of |
| 28 | * its contributors may be used to endorse or promote products derived |
| 29 | * from this software without specific prior written permission. |
| 30 | * |
| 31 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND |
| 32 | * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED |
| 33 | * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE |
| 34 | * DISCLAIMED. IN NO EVENT SHALL ADVANCED MICRO DEVICES, INC. BE LIABLE FOR ANY |
| 35 | * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES |
| 36 | * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; |
| 37 | * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND |
| 38 | * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 39 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS |
| 40 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| zbao | 7d94cf9 | 2012-07-02 14:19:14 +0800 | [diff] [blame] | 41 | * *************************************************************************** |
| 42 | * |
| 43 | */ |
| 44 | /*----------------------------------------------------------------------------------------*/ |
| 45 | /** |
| 46 | * Request VID |
| 47 | * |
| 48 | * Arg0 - 1 - GEN1 2 - GEN2 |
| 49 | * Arg1 - 0 = do not wait intil voltage is set |
| 50 | * 1 = wait until voltage is set |
| 51 | */ |
| 52 | Method (procPcieSetVoltage, 2, Serialized) { |
| 53 | Store ("PcieSetVoltage Enter", Debug) |
| 54 | Store (procIndirectRegisterRead (0x0, 0x60, 0xEA), Local1) |
| 55 | //Enable voltage change |
| 56 | Or (Local1, 0x2, Local1) |
| 57 | procIndirectRegisterWrite (0x0, 0x60, 0xEA, Local1) |
| 58 | //Clear voltage index |
| 59 | And (Local1, Not (ShiftLeft (0x3, 3)), Local1) |
| 60 | |
| 61 | if (LEqual (Arg0, DEF_LINK_SPEED_GEN1)) { |
| 62 | Store (varGen1Vid, Local3) |
| 63 | } else { |
| 64 | Store (varGen2Vid, Local3) |
| 65 | } |
| 66 | |
| 67 | Store (Concatenate (" Voltage Index:", ToHexString (Local3), Local6), Debug) |
| 68 | //Set new voltage index |
| 69 | Or (Local1, ShiftLeft (Local3, 3), Local1) |
| 70 | //Togle request |
| 71 | And (Not (Local1), 0x4, Local2) |
| 72 | Or (And (Local1, Not (0x4)), Local2, Local1) |
| 73 | procIndirectRegisterWrite (0x0, 0x60, 0xEA, Local1) |
| 74 | if (LNotEqual (Arg1, 0)) { |
| 75 | while (LNotEqual (ShiftLeft(Local1, 0x2), Local2)) { |
| 76 | And (procIndirectRegisterRead (0x0, 0x60, 0xEB), 0x1, Local1) |
| 77 | } |
| 78 | } |
| 79 | Store ("PcieSetVoltage Exit", Debug) |
| 80 | } |