2 * This file is part of the coreboot project.
4 * Written by Stefan Reinauer <stepan@openbios.org>.
5 * ACPI FADT, FACS, and DSDT table support added by
7 * Copyright (C) 2004 Stefan Reinauer <stepan@openbios.org>
8 * Copyright (C) 2005 Nick Barker <nick.barker9@btinternet.com>
9 * Copyright (C) 2007, 2008 Rudolf Marek <r.marek@assembler.cz>
11 * This program is free software; you can redistribute it and/or modify
12 * it under the terms of the GNU General Public License as published by
13 * the Free Software Foundation; version 2 of the License.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 #include <console/console.h>
27 #include <arch/acpi.h>
28 #include <arch/acpigen.h>
29 #include <arch/smp/mpspec.h>
30 #include <arch/ioapic.h>
31 #include <device/device.h>
32 #include <device/pci_ids.h>
33 #include "southbridge/via/vt8237r/vt8237r.h"
34 #include "southbridge/via/k8t890/k8t890.h"
35 #include "northbridge/amd/amdk8/acpi.h"
36 #include <cpu/amd/model_fxx_powernow.h>
38 extern const unsigned char AmlCode[];
40 unsigned long acpi_fill_mcfg(unsigned long current)
45 dev = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_K8M890CE_5, 0);
49 res = find_resource(dev, K8T890_MMCONFIG_MBAR);
51 current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)
52 current, res->base, 0x0, 0x0, 0xff);
57 unsigned long acpi_fill_madt(unsigned long current)
59 unsigned int gsi_base = 0x18;
61 /* Create all subtables for processors. */
62 current = acpi_create_madt_lapics(current);
64 /* Write SB IOAPIC. */
65 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
66 VT8237R_APIC_ID, IO_APIC_ADDR, 0);
68 /* Write NB IOAPIC. */
69 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
70 K8T890_APIC_ID, K8T890_APIC_BASE, gsi_base);
72 /* IRQ9 ACPI active low. */
73 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
74 current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW);
76 /* IRQ0 -> APIC IRQ2. */
77 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
78 current, 0, 0, 2, 0x0);
80 /* Create all subtables for processors. */
81 current = acpi_create_madt_lapic_nmis(current,
82 MP_IRQ_TRIGGER_EDGE | MP_IRQ_POLARITY_HIGH, 1);
87 unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
90 amd_model_fxx_generate_powernow(0, 0, 0);
91 acpigen_write_mainboard_resources("\\_SB.PCI0.MBRS", "_CRS");
92 return (unsigned long) (acpigen_get_current());
95 unsigned long write_acpi_tables(unsigned long start)
97 unsigned long current;
110 /* Align ACPI tables to 16 byte. */
111 start = (start + 0x0f) & -0x10;
114 printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx...\n", start);
116 /* We need at least an RSDP and an RSDT table. */
117 rsdp = (acpi_rsdp_t *) current;
118 current += sizeof(acpi_rsdp_t);
119 rsdt = (acpi_rsdt_t *) current;
120 current += sizeof(acpi_rsdt_t);
122 /* Clear all table memory. */
123 memset((void *) start, 0, current - start);
125 acpi_write_rsdp(rsdp, rsdt, NULL);
126 acpi_write_rsdt(rsdt);
128 /* We explicitly add these tables later on: */
129 printk(BIOS_DEBUG, "ACPI: * FACS\n");
131 /* we should align FACS to 64B as per ACPI specs */
133 current = ALIGN(current, 64);
134 facs = (acpi_facs_t *) current;
135 current += sizeof(acpi_facs_t);
136 acpi_create_facs(facs);
138 dsdt = (acpi_header_t *) current;
139 memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
140 current += dsdt->length;
141 memcpy(dsdt, &AmlCode, dsdt->length);
142 dsdt->checksum = 0; /* Don't trust iasl to get this right. */
143 dsdt->checksum = acpi_checksum((u8*)dsdt, dsdt->length);
144 printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt,
146 printk(BIOS_DEBUG, "ACPI: * FADT\n");
148 fadt = (acpi_fadt_t *) current;
149 current += sizeof(acpi_fadt_t);
151 acpi_create_fadt(fadt, facs, dsdt);
152 acpi_add_table(rsdp, fadt);
154 printk(BIOS_DEBUG, "ACPI: * HPET\n");
155 hpet = (acpi_hpet_t *) current;
156 current += sizeof(acpi_hpet_t);
157 acpi_create_hpet(hpet);
158 acpi_add_table(rsdp, hpet);
160 /* If we want to use HPET timers Linux wants an MADT. */
161 printk(BIOS_DEBUG, "ACPI: * MADT\n");
162 madt = (acpi_madt_t *) current;
163 acpi_create_madt(madt);
164 current += madt->header.length;
165 acpi_add_table(rsdp, madt);
167 printk(BIOS_DEBUG, "ACPI: * MCFG\n");
168 mcfg = (acpi_mcfg_t *) current;
169 acpi_create_mcfg(mcfg);
170 current += mcfg->header.length;
171 acpi_add_table(rsdp, mcfg);
173 printk(BIOS_DEBUG, "ACPI: * SRAT\n");
174 srat = (acpi_srat_t *) current;
175 acpi_create_srat(srat);
176 current += srat->header.length;
177 acpi_add_table(rsdp, srat);
180 printk(BIOS_DEBUG, "ACPI: * SLIT\n");
181 slit = (acpi_slit_t *) current;
182 acpi_create_slit(slit);
183 current+=slit->header.length;
184 acpi_add_table(rsdp,slit);
187 printk(BIOS_DEBUG, "ACPI: * SSDT\n");
188 ssdt = (acpi_header_t *)current;
190 acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR);
191 current += ssdt->length;
192 acpi_add_table(rsdp, ssdt);
194 printk(BIOS_INFO, "ACPI: done.\n");