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/*
* This file is part of the coreboot project.
*
* Copyright (C) 2007-2008 coresystems GmbH
* Copyright (C) 2009 Thomas Jourdan <thomas.jourdan@gmail.com>
*
* 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.
*/
#include <string.h>
#include <console/console.h>
#include <arch/acpi.h>
#include <arch/ioapic.h>
#include <device/device.h>
#include <device/pci.h>
#include <device/pci_ids.h>
#include "ioapic.h"
#define IO_APIC0 2
#define IO_APIC1 3
unsigned long acpi_fill_madt(unsigned long current)
{
unsigned int irq_start = 0;
device_t dev = 0;
unsigned char bus_isa;
/* Local Apic */
current += acpi_create_madt_lapic((acpi_madt_lapic_t *) current, 1, 0);
// This one is for the second core... Will it hurt?
current += acpi_create_madt_lapic((acpi_madt_lapic_t *) current, 2, 1);
/* IOAPIC */
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, IO_APIC0, IO_APIC_ADDR, irq_start);
irq_start += INTEL_IOAPIC_NUM_INTERRUPTS;
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, IO_APIC1, IO_APIC_ADDR + 0x10000, irq_start);
irq_start += INTEL_IOAPIC_NUM_INTERRUPTS;
dev = dev_find_slot(0, PCI_DEVFN(0x1e,0));
if (dev) {
bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
bus_isa++;
} else {
printk(BIOS_DEBUG, "ERROR - could not find PCI 0:1e.0, using defaults\n");
bus_isa = 7;
}
/* Map ISA IRQ 0 to IRQ 2 */
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current, bus_isa, 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, 0x000d);
return current;
}
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