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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2010 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 <console/console.h>
#include <string.h>
#include <arch/acpi.h>
#include <arch/ioapic.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include <cpu/x86/msr.h>
#include <cpu/amd/mtrr.h>
#include <cpu/amd/amdfam10_sysconf.h>
extern const unsigned char AmlCode[];
extern const unsigned char AmlCode_ssdt[];
#if CONFIG_ACPI_SSDTX_NUM >= 1
extern const unsigned char AmlCode_ssdt2[];
extern const unsigned char AmlCode_ssdt3[];
extern const unsigned char AmlCode_ssdt4[];
extern const unsigned char AmlCode_ssdt5[];
#endif
unsigned long acpi_fill_madt(unsigned long current)
{
/* create all subtables for processors */
current = acpi_create_madt_lapics(current);
/* Write SB700 IOAPIC, only one */
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, 2,
IO_APIC_ADDR, 0);
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
current, 0, 0, 2, 0);
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
current, 0, 9, 9, 0xF);
/* 0: mean bus 0--->ISA */
/* 0: PIC 0 */
/* 2: APIC 2 */
/* 5 mean: 0101 --> Edge-triggered, Active high */
/* create all subtables for processors */
/* current = acpi_create_madt_lapic_nmis(current, 5, 1); */
/* 1: LINT1 connect to NMI */
return current;
}
unsigned long write_acpi_tables(unsigned long start)
{
unsigned long current;
acpi_rsdp_t *rsdp;
acpi_rsdt_t *rsdt;
acpi_hpet_t *hpet;
acpi_madt_t *madt;
acpi_srat_t *srat;
acpi_slit_t *slit;
acpi_fadt_t *fadt;
acpi_facs_t *facs;
acpi_header_t *dsdt;
acpi_header_t *ssdt;
#if CONFIG_ACPI_SSDTX_NUM >= 1
acpi_header_t *ssdtx;
void *p;
int i;
#endif
get_bus_conf(); /* it will get sblk, pci1234, hcdn, and sbdn */
/* Align ACPI tables to 16 bytes */
start = ALIGN(start, 16);
current = start;
printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx...\n", start);
/* We need at least an RSDP and an RSDT Table */
rsdp = (acpi_rsdp_t *) current;
current += sizeof(acpi_rsdp_t);
rsdt = (acpi_rsdt_t *) current;
current += sizeof(acpi_rsdt_t);
/* clear all table memory */
memset((void *)start, 0, current - start);
acpi_write_rsdp(rsdp, rsdt, NULL);
acpi_write_rsdt(rsdt);
/*
* We explicitly add these tables later on:
*/
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * HPET at %lx\n", current);
hpet = (acpi_hpet_t *) current;
current += sizeof(acpi_hpet_t);
acpi_create_hpet(hpet);
acpi_add_table(rsdp, hpet);
/* If we want to use HPET Timers Linux wants an MADT */
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * MADT at %lx\n",current);
madt = (acpi_madt_t *) current;
acpi_create_madt(madt);
current += madt->header.length;
acpi_add_table(rsdp, madt);
/* SRAT */
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * SRAT at %lx\n", current);
srat = (acpi_srat_t *) current;
acpi_create_srat(srat);
current += srat->header.length;
acpi_add_table(rsdp, srat);
/* SLIT */
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * SLIT at %lx\n", current);
slit = (acpi_slit_t *) current;
acpi_create_slit(slit);
current += slit->header.length;
acpi_add_table(rsdp, slit);
/* SSDT */
current = ALIGN(current, 16);
printk(BIOS_DEBUG, "ACPI: * SSDT at %lx\n", current);
ssdt = (acpi_header_t *)current;
memcpy(ssdt, &AmlCode_ssdt, sizeof(acpi_header_t));
current += ssdt->length;
memcpy(ssdt, &AmlCode_ssdt, ssdt->length);
//Here you need to set value in pci1234, sblk and sbdn in get_bus_conf.c
update_ssdt((void*)ssdt);
/* recalculate checksum */
ssdt->checksum = 0;
ssdt->checksum = acpi_checksum((unsigned char *)ssdt,ssdt->length);
acpi_add_table(rsdp,ssdt);
#if CONFIG_ACPI_SSDTX_NUM >= 1
/* same htio, but different position? We may have to copy,
change HCIN, and recalculate the checknum and add_table */
for(i=1;i<sysconf.hc_possible_num;i++) { // 0: is hc sblink
if((sysconf.pci1234[i] & 1) != 1 ) continue;
u8 c;
if (i < 7) {
c = (u8) ('4' + i - 1);
} else {
c = (u8) ('A' + i - 1 - 6);
}
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * SSDT for PCI%c at %lx\n", c, current); //pci0 and pci1 are in dsdt
ssdtx = (acpi_header_t *)current;
switch (sysconf.hcid[i]) {
case 1:
p = &AmlCode_ssdt2;
break;
case 2:
p = &AmlCode_ssdt3;
break;
case 3: /* 8131 */
p = &AmlCode_ssdt4;
break;
default:
/* HTX no io apic */
p = &AmlCode_ssdt5;
break;
}
memcpy(ssdtx, p, sizeof(acpi_header_t));
current += ssdtx->length;
memcpy(ssdtx, p, ssdtx->length);
update_ssdtx((void *)ssdtx, i);
ssdtx->checksum = 0;
ssdtx->checksum = acpi_checksum((u8 *)ssdtx, ssdtx->length);
acpi_add_table(rsdp, ssdtx);
}
#endif
/* DSDT */
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * DSDT at %lx\n", current);
dsdt = (acpi_header_t *)current; // it will used by fadt
memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
current += dsdt->length;
memcpy(dsdt, &AmlCode, dsdt->length);
printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n",dsdt,dsdt->length);
/* FACS */ // it needs 64 bit alignment
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * FACS at %lx\n", current);
facs = (acpi_facs_t *) current; // it will be used by fadt
current += sizeof(acpi_facs_t);
acpi_create_facs(facs);
/* FADT */
current = ALIGN(current, 8);
printk(BIOS_DEBUG, "ACPI: * FADT at %lx\n", current);
fadt = (acpi_fadt_t *) current;
current += sizeof(acpi_fadt_t);
acpi_create_fadt(fadt, facs, dsdt);
acpi_add_table(rsdp, fadt);
printk(BIOS_INFO, "ACPI: done.\n");
return current;
}
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