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/*
* This file is part of the coreboot project.
*
* Copyright (C) 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.
*/
#include <console/console.h>
#include <string.h>
#include <arch/acpi.h>
#include <arch/acpigen.h>
#include <arch/ioapic.h>
#include <arch/io.h>
#include <device/pci.h>
#include <device/pci_ids.h>
unsigned long acpi_fill_madt(unsigned long current)
{
device_t dev;
u32 dword;
u32 gsi_base = 0;
u32 apicid_sb700;
u32 apicid_rd890;
/*
* AGESA v5 Apply apic enumeration rules
* For systems with >= 16 APICs, put the IO-APICs at 0..n and
* put the local-APICs at m..z
* For systems with < 16 APICs, put the Local-APICs at 0..n and
* put the IO-APICs at (n + 1)..z
*/
if (CONFIG_MAX_CPUS >= 16)
apicid_sb700 = 0x0;
else
apicid_sb700 = CONFIG_MAX_CPUS + 1;
apicid_rd890 = apicid_sb700 + 1;
/* 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,
apicid_sb700,
IO_APIC_ADDR,
0
);
/* IOAPIC on rs5690 */
gsi_base += IO_APIC_INTERRUPTS; /* sb700 has 24 IOAPIC entries. */
dev = dev_find_slot(0, PCI_DEVFN(0, 0));
if (dev) {
pci_write_config32(dev, 0xF8, 0x1);
dword = pci_read_config32(dev, 0xFC) & 0xfffffff0;
current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
apicid_rd890,
dword,
gsi_base
);
}
current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current,
0, //BUS
0, //SOURCE
2, //gsirq
0 //flags
);
/* 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_nmi((acpi_madt_lapic_nmi_t *)current, 0, 5, 1);
current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current, 1, 5, 1);
/* 1: LINT1 connect to NMI */
return current;
}
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