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/*
* This file is part of the coreboot project.
*
* Written by Stefan Reinauer <stepan@openbios.org>
* (C) 2005 Stefan Reinauer
* (C) 2005 Digital Design Corporation
*
* Ported to Intel XE7501DEVKIT by Agami Aruma
* Ported to AOpen DXPL Plus-U by Kyösti Mälkki
*
* 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 <device/pci.h>
#include <device/pci_ids.h>
#include <assert.h>
#include "bus.h"
extern unsigned char AmlCode[];
unsigned long acpi_fill_mcfg(unsigned long current)
{
/* Just a dummy */
return current;
}
unsigned long acpi_fill_slit(unsigned long current)
{
// Not implemented
return current;
}
unsigned long acpi_fill_srat(unsigned long current)
{
// Not implemented
return current;
}
unsigned long acpi_fill_madt(unsigned long current)
{
unsigned int irq_start = 0;
device_t dev = 0;
struct resource* res = NULL;
// SJM: Hard-code CPU LAPIC entries for now
current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 0, 0);
current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 1, 6);
current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 2, 1);
current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 3, 7);
// Southbridge IOAPIC
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, IOAPIC_ICH4, 0xfec00000, irq_start);
irq_start += INTEL_IOAPIC_NUM_INTERRUPTS;
// P64H2 Bus B IOAPIC
dev = dev_find_slot(PCI_BUS_E7501_HI_B, PCI_DEVFN(28, 0));
if (!dev)
BUG(); // Config.lb error?
res = find_resource(dev, PCI_BASE_ADDRESS_0);
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, IOAPIC_P64H2_BUS_B, res->base, irq_start);
irq_start += INTEL_IOAPIC_NUM_INTERRUPTS;
// P64H2 Bus A IOAPIC
dev = dev_find_slot(PCI_BUS_E7501_HI_B, PCI_DEVFN(30, 0));
if (!dev)
BUG(); // Config.lb error?
res = find_resource(dev, PCI_BASE_ADDRESS_0);
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, IOAPIC_P64H2_BUS_A, res->base, irq_start);
irq_start += INTEL_IOAPIC_NUM_INTERRUPTS;
// Map ISA IRQ 0 to IRQ 2
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)current, 1, 0, 2, 0);
// IRQ9 differs from ISA standard - ours is active high, level-triggered
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)current, 0, 9, 9, 0xD);
return current;
}
#define ALIGN_CURRENT current = ((current + 0x0f) & -0x10)
unsigned long write_acpi_tables(unsigned long start)
{
unsigned long current;
acpi_rsdp_t *rsdp;
acpi_rsdt_t *rsdt;
acpi_madt_t *madt;
acpi_facs_t *facs;
acpi_fadt_t *fadt;
acpi_header_t *dsdt;
current = start;
/* Align ACPI tables to 16byte */
ALIGN_CURRENT;
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);
ALIGN_CURRENT;
rsdt = (acpi_rsdt_t *) current;
current += sizeof(acpi_rsdt_t);
ALIGN_CURRENT;
/* 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(BIOS_DEBUG, "ACPI: * FADT\n");
fadt = (acpi_fadt_t *) current;
current += sizeof(acpi_fadt_t);
ALIGN_CURRENT;
printk(BIOS_DEBUG, "ACPI: * FACS\n");
facs = (acpi_facs_t *) current;
current += sizeof(acpi_facs_t);
ALIGN_CURRENT;
acpi_create_facs(facs);
dsdt = (acpi_header_t *)current;
memcpy(dsdt,(void *)AmlCode, sizeof(acpi_header_t));
current += dsdt->length;
ALIGN_CURRENT;
memcpy(dsdt,(void *)AmlCode, dsdt->length);
dsdt->checksum = 0;
dsdt->checksum = acpi_checksum((void *)dsdt,dsdt->length);
printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n",dsdt,dsdt->length);
acpi_create_fadt(fadt,facs,dsdt);
acpi_add_table(rsdp,fadt);
printk(BIOS_DEBUG, "ACPI: * MADT\n");
madt = (acpi_madt_t *) current;
acpi_create_madt(madt);
current+=madt->header.length;
ALIGN_CURRENT;
acpi_add_table(rsdp,madt);
printk(BIOS_INFO, "ACPI: done.\n");
return current;
}
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