| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2011 - 2012 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 <cpu/x86/mtrr.h> |
| #include <northbridge/amd/agesa/agesa_helper.h> |
| #include <AGESA.h> |
| #include "amdlib.h" |
| |
| UINT64 |
| MsrRead ( |
| IN UINT32 MsrAddress |
| ); |
| |
| VOID |
| MsrWrite ( |
| IN UINT32 MsrAddress, |
| IN UINT64 Value |
| ); |
| |
| |
| UINT64 |
| MsrRead ( |
| IN UINT32 MsrAddress |
| ) |
| { |
| return __readmsr (MsrAddress); |
| } |
| |
| VOID |
| MsrWrite ( |
| IN UINT32 MsrAddress, |
| IN UINT64 Value |
| ) |
| { |
| __writemsr (MsrAddress, Value); |
| } |
| |
| void amd_initcpuio(void) |
| { |
| UINT32 PciData; |
| PCI_ADDR PciAddress; |
| AMD_CONFIG_PARAMS StdHeader; |
| UINT32 nodes; |
| UINT32 node; |
| UINT32 sblink; |
| UINT32 i; |
| UINT32 TOM; |
| |
| /* get the number of coherent nodes in the system */ |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB, FUNC_0, 0x60); |
| LibAmdPciRead(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| nodes = ((PciData >> 4) & 7) + 1; //NodeCnt[2:0] |
| |
| /* Find out the Link ID of Node0 that connects to the |
| * Southbridge (system IO hub). e.g. family10 MCM Processor, |
| * sbLink is Processor0 Link2, internal Node0 Link3 |
| */ |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB, FUNC_0, 0x64); |
| LibAmdPciRead(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| sblink = (PciData >> 8) & 3; //assume ganged |
| |
| /* Enable MMIO on AMD CPU Address Map Controller for all nodes */ |
| for (node = 0; node < nodes; node++) { |
| /* clear all MMIO Mapped Base/Limit Registers */ |
| for (i = 0; i < 8; i++) { |
| PciData = 0x00000000; |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x80 + i*8); |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x84 + i*8); |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| } |
| |
| /* clear all IO Space Base/Limit Registers */ |
| for (i = 0; i < 4; i++) { |
| PciData = 0x00000000; |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0xC4 + i*8); |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0xC0 + i*8); |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| } |
| |
| /* Set VGA Ram MMIO 0000A0000-0000BFFFF to Node0 sbLink */ |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x84); |
| PciData = 0x00000B00; |
| PciData |= sblink << 4; |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x80); |
| PciData = 0x00000A03; |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| |
| /* Set TOM1-FFFFFFFF to Node0 sbLink. */ |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x8C); |
| PciData = 0x00FFFF00; |
| PciData |= sblink << 4; |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| TOM = (UINT32)MsrRead(TOP_MEM); |
| PciData = (TOM >> 8) | 0x03; |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x88); |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| |
| /* Set MMCONF space to Node0 sbLink with NP set. |
| * default E0000000-EFFFFFFF |
| * Just have all mmio set to non-posted, |
| * coreboot not implemente the range by range setting yet. |
| */ |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0xBC); |
| PciData = CONFIG_MMCONF_BASE_ADDRESS + (CONFIG_MMCONF_BUS_NUMBER * 0x100000) - 1;//1MB each bus |
| PciData = (PciData >> 8) & 0xFFFFFF00; |
| PciData |= 0x80; //NP |
| PciData |= sblink << 4; |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0xB8); |
| PciData = (CONFIG_MMCONF_BASE_ADDRESS >> 8) | 0x03; |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| |
| |
| /* Set PCIO: 0x0 - 0xFFF000 to Node0 sbLink and enabled VGA IO*/ |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0xC4); |
| PciData = 0x00FFF000; |
| PciData |= sblink << 4; |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0xC0); |
| PciData = 0x00000033; |
| LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader); |
| } |
| } |
| |
| void amd_initmmio(void) |
| { |
| UINT64 MsrReg; |
| AMD_CONFIG_PARAMS StdHeader; |
| |
| /* |
| * Set the MMIO Configuration Base Address and Bus Range onto |
| * MMIO configuration base Address MSR register. |
| */ |
| MsrReg = CONFIG_MMCONF_BASE_ADDRESS | (LibAmdBitScanReverse(CONFIG_MMCONF_BUS_NUMBER) << 2) | 1; |
| LibAmdMsrWrite(0xC0010058, &MsrReg, &StdHeader); |
| |
| /* Set ROM cache onto WP to decrease post time */ |
| MsrReg = (0x0100000000 - CACHE_ROM_SIZE) | 5; |
| LibAmdMsrWrite (0x20C, &MsrReg, &StdHeader); |
| MsrReg = ((1ULL << CONFIG_CPU_ADDR_BITS) - CACHE_ROM_SIZE) | 0x800ull; |
| LibAmdMsrWrite(0x20D, &MsrReg, &StdHeader); |
| } |
| |
| #if 0 |
| #include <cpuFamilyTranslation.h> |
| |
| void cpu_show_tsc(void) |
| { |
| UINT32 TscRateInMhz; |
| CPU_SPECIFIC_SERVICES *FamilySpecificServices; |
| |
| GetCpuServicesOfCurrentCore((CONST CPU_SPECIFIC_SERVICES **) & FamilySpecificServices, |
| &AmdParamStruct.StdHeader); |
| FamilySpecificServices->GetTscRate(FamilySpecificServices, &TscRateInMhz, &AmdParamStruct.StdHeader); |
| printk(BIOS_DEBUG, "BSP Frequency: %uMHz\n", (unsigned int)TscRateInMhz); |
| } |
| #endif |