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/*
* 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.
*
* 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 <cpu/x86/mtrr.h>
#include <northbridge/amd/agesa/agesawrapper.h>
#include "amdlib.h"
/* Define AMD Ontario APPU SSID/SVID */
#define AMD_APU_SVID 0x1022
#define AMD_APU_SSID 0x1234
void amd_initcpuio(void)
{
UINT64 MsrReg;
UINT32 PciData;
PCI_ADDR PciAddress;
AMD_CONFIG_PARAMS StdHeader;
/* Enable legacy video routing: D18F1xF4 VGA Enable */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 1, 0xF4);
PciData = 1;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
/* The platform BIOS needs to ensure the memory ranges of SB800 legacy
* devices (TPM, HPET, BIOS RAM, Watchdog Timer, I/O APIC and ACPI) are
* set to non-posted regions.
*/
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 1, 0x84);
PciData = 0x00FEDF00; // last address before processor local APIC at FEE00000
PciData |= 1 << 7; // set NP (non-posted) bit
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 1, 0x80);
PciData = (0xFED00000 >> 8) | 3; // lowest NP address is HPET at FED00000
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
/* Map the remaining PCI hole as posted MMIO */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 1, 0x8C);
PciData = 0x00FECF00; // last address before non-posted range
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
LibAmdMsrRead(0xC001001A, &MsrReg, &StdHeader);
MsrReg = (MsrReg >> 8) | 3;
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 1, 0x88);
PciData = (UINT32) MsrReg;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
/* Send all IO (0000-FFFF) to southbridge. */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 1, 0xC4);
PciData = 0x0000F000;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0x18, 1, 0xC0);
PciData = 0x00000003;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
}
void amd_initmmio(void)
{
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 | (LibAmdBitScanReverse(CONFIG_MMCONF_BUS_NUMBER) << 2) | 1;
LibAmdMsrWrite(0xC0010058, &MsrReg, &StdHeader);
/*
Set the NB_CFG MSR register. Enable CF8 extended configuration cycles.
*/
LibAmdMsrRead(0xC001001F, &MsrReg, &StdHeader);
MsrReg = MsrReg | 0x0000400000000000ull;
LibAmdMsrWrite(0xC001001F, &MsrReg, &StdHeader);
/* Set Ontario Link Data */
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0, 0, 0xE0);
PciData = 0x01308002;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
PciAddress.AddressValue = MAKE_SBDFO(0, 0, 0, 0, 0xE4);
PciData = (AMD_APU_SSID << 0x10) | AMD_APU_SVID;
LibAmdPciWrite(AccessWidth32, PciAddress, &PciData, &StdHeader);
}
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