/* * This file is part of the coreboot project. * * Copyright (C) 2011 Advanced Micro Devices, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include <AGESA.h> #include <console/console.h> #include <northbridge/amd/agesa/BiosCallOuts.h> #include <SB800.h> #include <southbridge/amd/cimx/sb800/gpio_oem.h> #include <stdlib.h> /* Should AGESA_GNB_PCIE_SLOT_RESET use agesa_NoopSuccess? * * COM Express doesn't provide dedicated resets for individual lanes * and it's not needed for the on-board Intel I210 GbE controller. */ static AGESA_STATUS board_BeforeDramInit (UINT32 Func, UINTN Data, VOID *ConfigPtr); const BIOS_CALLOUT_STRUCT BiosCallouts[] = { {AGESA_DO_RESET, agesa_Reset }, {AGESA_READ_SPD, agesa_ReadSpd }, {AGESA_READ_SPD_RECOVERY, agesa_NoopUnsupported }, {AGESA_RUNFUNC_ONAP, agesa_RunFuncOnAp }, {AGESA_GNB_PCIE_SLOT_RESET, agesa_NoopUnsupported }, {AGESA_HOOKBEFORE_DRAM_INIT, board_BeforeDramInit}, {AGESA_HOOKBEFORE_DRAM_INIT_RECOVERY, agesa_NoopSuccess }, {AGESA_HOOKBEFORE_DQS_TRAINING, agesa_NoopSuccess }, {AGESA_HOOKBEFORE_EXIT_SELF_REF, agesa_NoopSuccess }, }; const int BiosCalloutsLen = ARRAY_SIZE(BiosCallouts); /* Call the host environment interface to provide a user hook opportunity. */ static AGESA_STATUS board_BeforeDramInit (UINT32 Func, UINTN Data, VOID *ConfigPtr) { MEM_DATA_STRUCT *MemData = ConfigPtr; printk(BIOS_INFO, "Setting DDR3 voltage: "); FCH_IOMUX(65) = 1; // GPIO65: VMEM_LV_EN# lowers VMEM from 1.5 to 1.35V switch (MemData->ParameterListPtr->DDR3Voltage) { case VOLT1_25: // board is not able to provide this MemData->ParameterListPtr->DDR3Voltage = VOLT1_35; // sorry printk(BIOS_INFO, "can't provide 1.25 V, using "); // fall through default: // AGESA.h says in mixed case 1.5V DIMMs get excluded case VOLT1_35: FCH_GPIO(65) = 0x08; // = output, disable PU, set to 0 printk(BIOS_INFO, "1.35 V\n"); break; case VOLT1_5: FCH_GPIO(65) = 0xC8; // = output, disable PU, set to 1 printk(BIOS_INFO, "1.5 V\n"); } return AGESA_SUCCESS; }