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/*
* This file is part of the coreboot project.
*
* Copyright (C) 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.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#include <stdint.h>
#include <string.h>
#include <cpu/x86/mtrr.h>
#include <northbridge/amd/agesa/agesawrapper.h>
#include <northbridge/amd/agesa/BiosCallOuts.h>
#include "cpuRegisters.h"
#include "cpuCacheInit.h"
#include "cpuApicUtilities.h"
#include "cpuEarlyInit.h"
#include "cpuLateInit.h"
#include "Dispatcher.h"
#include "cpuCacheInit.h"
#include "amdlib.h"
#include "heapManager.h"
#include "Filecode.h"
#include <arch/io.h>
#include <southbridge/amd/cimx/sb700/gpio_oem.h>
#define FILECODE UNASSIGNED_FILE_FILECODE
/*Get the Bus Number from CONFIG_MMCONF_BUS_NUMBER, Please reference AMD BIOS BKDG docuemt about it*/
/*
BusRange: bus range identifier. Read-write. Reset: X. This specifies the number of buses in the
MMIO configuration space range. The size of the MMIO configuration space range varies with this
field as follows: the size is 1 Mbyte times the number of buses. This field is encoded as follows:
Bits Buses Bits Buses
0h 1 5h 32
1h 2 6h 64
2h 4 7h 128
3h 8 8h 256
4h 16 Fh-9h Reserved
*/
STATIC UINT8 GetEndBusNum(VOID)
{
UINT64 BusNum;
UINT8 Index;
for (Index = 1; Index <= 8; Index++) {
BusNum = CONFIG_MMCONF_BUS_NUMBER >> Index;
if (BusNum == 1) {
break;
}
}
return Index;
}
AGESA_STATUS agesawrapper_amdinitcpuio(void)
{
AGESA_STATUS Status;
UINT64 MsrReg;
UINT32 PciData;
PCI_ADDR PciAddress;
AMD_CONFIG_PARAMS StdHeader;
UINT32 TopMem;
UINT32 nodes;
UINT32 node;
UINT32 SbLink;
UINT32 i;
/* get the number of coherent nodes in the system */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 0, 0x60);
LibAmdPciRead(AccessWidth32, PciAddress, &PciData, &StdHeader);
nodes = ((PciData >> 4) & 7) + 1; //nodes[6:4]
/* 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, 0x18, 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, 0xC0 + i * 8);
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0xC4 + i * 8);
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
}
/* Enable MMIO on AMD CPU Address Map Controller */
/* Set VGA Ram MMIO 0000A0000-0000BFFFF to Node0 sbLink */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x80);
PciData = (0xA0000 >> 8) | 3;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x84);
PciData = 0xB0000 >> 8;
PciData &= (~0xFF);
PciData |= SbLink << 4;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
/* Set UMA MMIO. */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x88);
LibAmdMsrRead(0xC001001A, &MsrReg, &StdHeader);
TopMem = (UINT32) MsrReg;
MsrReg = (MsrReg >> 8) | 3;
PciData = (UINT32) MsrReg;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x8c);
if (TopMem <= CONFIG_MMCONF_BASE_ADDRESS) {
PciData = (CONFIG_MMCONF_BASE_ADDRESS - 1) >> 8;
} else {
PciData = (0x100000000ull - 1) >> 8;
}
PciData &= (~0xFF);
PciData |= SbLink << 4;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
/* Set PCIE MMIO. */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x90);
PciData = (CONFIG_MMCONF_BASE_ADDRESS >> 8) | 3;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x94);
PciData = ((CONFIG_MMCONF_BASE_ADDRESS + CONFIG_MMCONF_BUS_NUMBER * 4096 * 256 - 1) >> 8) & (~0xFF);
PciData &= (~0xFF);
PciData |= MMIO_NP_BIT;
PciData |= SbLink << 4;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
/* Set XAPIC MMIO. 24K */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x98);
PciData = (0xFEC00000 >> 8) | 3;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0x9c);
PciData = ((0xFEC00000 + 6 * 4096 - 1) >> 8);
PciData &= (~0xFF);
PciData |= MMIO_NP_BIT;
PciData |= SbLink << 4;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
/* Set Local APIC MMIO. 4K*4= 16K, Llano CPU are 4 cores */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0xA0);
PciData = (0xFEE00000 >> 8) | 3;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0xA8);
PciData = (0xFEE00000 + 4 * 4096 - 1) >> 8;
PciData &= (~0xFF);
PciData |= MMIO_NP_BIT;
PciData |= SbLink << 4;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
/* Set PCIO: 0x0 - 0xFFF000 and enabled VGA IO */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0xC0);
PciData = 0x13;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
PciAddress.AddressValue = MAKE_SBDFO(0, 0, CONFIG_CDB + node, FUNC_1, 0xC4);
PciData = 0x00FFF000;
PciData &= (~0x7F);
PciData |= SbLink << 4;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
}
Status = AGESA_SUCCESS;
return Status;
}
AGESA_STATUS agesawrapper_amdinitmmio(void)
{
AGESA_STATUS Status;
UINT64 MsrReg;
UINT32 PciData;
PCI_ADDR PciAddress;
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 | (GetEndBusNum() << 2) | 1;
LibAmdMsrWrite(0xC0010058, &MsrReg, &StdHeader);
/*
Set the NB_CFG MSR register. Enable CF8 extended configuration cycles.
*/
LibAmdMsrRead(0xC001001F, &MsrReg, &StdHeader);
MsrReg = MsrReg | BIT46;
LibAmdMsrWrite(0xC001001F, &MsrReg, &StdHeader);
/* Set PCIE MMIO. */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 1, 0x90);
PciData = (CONFIG_MMCONF_BASE_ADDRESS >> 8) | 3;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 1, 0x94);
PciData = ((CONFIG_MMCONF_BASE_ADDRESS + CONFIG_MMCONF_BUS_NUMBER * 4096 * 256 - 1) >> 8) | MMIO_NP_BIT;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
/* Enable memory access */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0, 0, 0x04);
LibAmdPciRead(AccessWidth8, PciAddress, &PciData, &StdHeader);
PciData |= BIT1;
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0, 0, 0x04);
LibAmdPciWrite(AccessWidth8, PciAddress, &PciData, &StdHeader);
/* Set ROM cache onto WP to decrease post time */
MsrReg = (0x0100000000 - CACHE_ROM_SIZE) | 5;
LibAmdMsrWrite(0x20E, &MsrReg, &StdHeader);
MsrReg = ((1ULL << CONFIG_CPU_ADDR_BITS) - CACHE_ROM_SIZE) | 0x800ull;
LibAmdMsrWrite(0x20F, &MsrReg, &StdHeader);
Status = AGESA_SUCCESS;
return Status;
}
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