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/*
* This file is part of the coreboot project.
*
* Written by Stefan Reinauer <stepan@openbios.org>.
* ACPI FADT, FACS, and DSDT table support added by
*
* Copyright (C) 2004 Stefan Reinauer <stepan@openbios.org>
* Copyright (C) 2005 Nick Barker <nick.barker9@btinternet.com>
* Copyright (C) 2007, 2008 Rudolf Marek <r.marek@assembler.cz>
* Copyright (C) 2009 Harald Gutmann <harald.gutmann@gmx.net>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License v2 as published by
* the Free Software Foundation.
*
* 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/smp/mpspec.h>
#include <device/device.h>
#include <device/pci_ids.h>
#include <../../../northbridge/amd/amdk8/amdk8_acpi.h>
#include <cpu/amd/model_fxx_powernow.h>
#include <device/pci.h>
#include <cpu/amd/amdk8_sysconf.h>
extern unsigned char AmlCode[];
unsigned long acpi_fill_mcfg(unsigned long current)
{
/* Not implemented */
return current;
}
unsigned long acpi_fill_madt(unsigned long current)
{
unsigned int gsi_base = 0x18;
extern unsigned char bus_mcp55[8];
extern unsigned apicid_mcp55;
extern void get_bus_conf(void);
unsigned sbdn;
struct resource *res;
device_t dev;
get_bus_conf();
sbdn = sysconf.sbdn;
/* Create all subtables for processors. */
current = acpi_create_madt_lapics(current);
/* Write SB IOAPIC. */
dev = dev_find_slot(bus_mcp55[0], PCI_DEVFN(sbdn+ 0x1,0));
if (dev) {
res = find_resource(dev, PCI_BASE_ADDRESS_1);
if (res) {
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
apicid_mcp55, res->base, 0);
}
}
/* Write NB IOAPIC. */
dev = dev_find_slot(bus_mcp55[0], PCI_DEVFN(sbdn+ 0x12,1));
if (dev) {
res = find_resource(dev, PCI_BASE_ADDRESS_1);
if (res) {
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
apicid_mcp55++, res->base, gsi_base);
}
}
/* IRQ9 ACPI active low. */
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW);
/* IRQ0 -> APIC IRQ2. */
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
current, 0, 0, 2, 0x0);
/* Create all subtables for processors. */
current = acpi_create_madt_lapic_nmis(current,
MP_IRQ_TRIGGER_EDGE | MP_IRQ_POLARITY_HIGH, 1);
return current;
}
unsigned long acpi_fill_ssdt_generator(unsigned long current, char *oem_table_id)
{
k8acpi_write_vars();
amd_model_fxx_generate_powernow(0, 0, 0);
return (unsigned long) (acpigen_get_current());
}
unsigned long write_acpi_tables(unsigned long start)
{
unsigned long current;
acpi_rsdp_t *rsdp;
acpi_srat_t *srat;
acpi_rsdt_t *rsdt;
acpi_mcfg_t *mcfg;
acpi_hpet_t *hpet;
acpi_madt_t *madt;
acpi_fadt_t *fadt;
acpi_facs_t *facs;
acpi_slit_t *slit;
acpi_header_t *ssdt;
acpi_header_t *dsdt;
/* Align ACPI tables to 16 byte. */
start = (start + 0x0f) & -0x10;
current = start;
printk_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: */
printk_debug("ACPI: * FACS\n");
/* we should align FACS to 64B as per ACPI specs */
current = ALIGN(current, 64);
facs = (acpi_facs_t *) current;
current += sizeof(acpi_facs_t);
acpi_create_facs(facs);
dsdt = (acpi_header_t *) current;
current += ((acpi_header_t *) AmlCode)->length;
memcpy((void *) dsdt, (void *) AmlCode,
((acpi_header_t *) AmlCode)->length);
dsdt->checksum = 0; /* Don't trust iasl to get this right. */
dsdt->checksum = acpi_checksum(dsdt, dsdt->length);
printk_debug("ACPI: * DSDT @ %08x Length %x\n", dsdt,
dsdt->length);
printk_debug("ACPI: * FADT\n");
fadt = (acpi_fadt_t *) current;
current += sizeof(acpi_fadt_t);
acpi_create_fadt(fadt, facs, dsdt);
acpi_add_table(rsdp, fadt);
printk_debug("ACPI: * HPET\n");
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. */
printk_debug("ACPI: * MADT\n");
madt = (acpi_madt_t *) current;
acpi_create_madt(madt);
current += madt->header.length;
acpi_add_table(rsdp, madt);
printk_debug("ACPI: * MCFG\n");
mcfg = (acpi_mcfg_t *) current;
acpi_create_mcfg(mcfg);
current += mcfg->header.length;
acpi_add_table(rsdp, mcfg);
printk_debug("ACPI: * SRAT\n");
srat = (acpi_srat_t *) current;
acpi_create_srat(srat);
current += srat->header.length;
acpi_add_table(rsdp, srat);
/* SLIT */
printk_debug("ACPI: * SLIT\n");
slit = (acpi_slit_t *) current;
acpi_create_slit(slit);
current+=slit->header.length;
acpi_add_table(rsdp, slit);
/* SSDT */
printk_debug("ACPI: * SSDT\n");
ssdt = (acpi_header_t *)current;
acpi_create_ssdt_generator(ssdt, "DYNADATA");
current += ssdt->length;
acpi_add_table(rsdp, ssdt);
printk_info("ACPI: done.\n");
return current;
}
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