/* $NoKeywords:$ */ /** * @file * * Config Fch LPC controller * * Init LPC Controller features (PEI phase). * * @xrefitem bom "File Content Label" "Release Content" * @e project: AGESA * @e sub-project: FCH * @e \$Revision: 44324 $ @e \$Date: 2010-12-22 17:16:51 +0800 (Wed, 22 Dec 2010) $ * */ /* ***************************************************************************** * * Copyright (c) 2011, 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. **************************************************************************** */ #include "FchPlatform.h" #define FILECODE PROC_FCH_SPI_LPCRESET_FILECODE /** * FchInitResetLpcPciTable - Lpc (Spi) device registers initial * during the power on stage. * * * * */ REG8_MASK FchInitResetLpcPciTable[] = { // // LPC Device (Bus 0, Dev 20, Func 3) // {0x00, LPC_BUS_DEV_FUN, 0}, {FCH_LPC_REG48, 0x00, BIT0 + BIT1 + BIT2}, {FCH_LPC_REG7C, 0x00, BIT0 + BIT2}, {FCH_LPC_REG78, 0xF0, BIT2 + BIT3}, /// Enable LDRQ pin {FCH_LPC_REGBB, 0xFF, BIT3 + BIT4 + BIT5}, // // Set 0xBB [5:3] = 111 to improve SPI timing margin. // Set 0xBA [6:5] = 11 improve SPI timing margin. (SPI Prefetch enhancement) // {FCH_LPC_REGBB, 0xBE, BIT0 + BIT3 + BIT4 + BIT5}, {FCH_LPC_REGBA, 0x9F, BIT5 + BIT6}, // Force EC_PortActive to 1 to fix possible IR non function issue when NO_EC_SUPPORT is defined {FCH_LPC_REGA4, ~ BIT0, BIT0}, {0xFF, 0xFF, 0xFF}, }; /** * FchInitResetLpc - Config Lpc controller during Power-On * * * * @param[in] FchDataPtr Fch configuration structure pointer. * */ VOID FchInitResetLpc ( IN VOID *FchDataPtr ) { FCH_RESET_DATA_BLOCK *LocalCfgPtr; AMD_CONFIG_PARAMS *StdHeader; LocalCfgPtr = (FCH_RESET_DATA_BLOCK *) FchDataPtr; StdHeader = LocalCfgPtr->StdHeader; // // enable prefetch on Host, set LPC cfg 0xBB bit 0 to 1 // RwPci ((LPC_BUS_DEV_FUN << 16) + FCH_LPC_REGBA, AccessWidth16, 0xFFFF, BIT8, StdHeader); ProgramPciByteTable ( (REG8_MASK*) (&FchInitResetLpcPciTable[0]), sizeof (FchInitResetLpcPciTable) / sizeof (REG8_MASK), StdHeader); if ( LocalCfgPtr->LegacyFree ) { RwPci (((LPC_BUS_DEV_FUN << 16) + FCH_LPC_REG44), AccessWidth32, 00, 0x0003C000, StdHeader); } else { RwPci (((LPC_BUS_DEV_FUN << 16) + FCH_LPC_REG44), AccessWidth32, 00, 0xFF03FFD5, StdHeader); } // Enabling SPI ROM Prefetch // Set LPC cfg 0xBA bit 8 RwPci ((LPC_BUS_DEV_FUN << 16) + FCH_LPC_REGBA, AccessWidth16, 0xFFFF, BIT8, StdHeader); // Enable SPI Prefetch for USB, set LPC cfg 0xBA bit 7 to 1. RwPci ((LPC_BUS_DEV_FUN << 16) + FCH_LPC_REGBA, AccessWidth16, 0xFFFF, BIT7, StdHeader); } /** * FchInitRecoveryLpc - Config Lpc controller during Crisis * Recovery * * * * @param[in] FchDataPtr Fch configuration structure pointer. * */ VOID FchInitRecoveryLpc ( IN VOID *FchDataPtr ) { }