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/smp/mpspec.h>
29 #include <device/device.h>
30 #include <device/pci_ids.h>
31 #include "southbridge/via/vt8237r/vt8237r.h"
32 #include "southbridge/via/k8t890/k8t890.h"
33 #include "northbridge/amd/amdk8/amdk8_acpi.h"
34 #include <cpu/amd/model_fxx_powernow.h>
36 extern const unsigned char AmlCode[];
38 unsigned long acpi_fill_mcfg(unsigned long current)
43 dev = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_K8M890CE_5, 0);
47 res = find_resource(dev, K8T890_MMCONFIG_MBAR);
49 current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)
50 current, res->base, 0x0, 0x0, 0xff);
55 unsigned long acpi_fill_madt(unsigned long current)
57 unsigned int gsi_base = 0x18;
59 /* Create all subtables for processors. */
60 current = acpi_create_madt_lapics(current);
62 /* Write SB IOAPIC. */
63 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
64 VT8237R_APIC_ID, VT8237R_APIC_BASE, 0);
66 /* Write NB IOAPIC. */
67 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
68 K8T890_APIC_ID, K8T890_APIC_BASE, gsi_base);
70 /* IRQ9 ACPI active low. */
71 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
72 current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW);
74 /* IRQ0 -> APIC IRQ2. */
75 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
76 current, 0, 0, 2, 0x0);
78 /* Create all subtables for processors. */
79 current = acpi_create_madt_lapic_nmis(current,
80 MP_IRQ_TRIGGER_EDGE | MP_IRQ_POLARITY_HIGH, 1);
85 unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
88 amd_model_fxx_generate_powernow(0, 0, 0);
89 return (unsigned long) (acpigen_get_current());
92 unsigned long write_acpi_tables(unsigned long start)
94 unsigned long current;
107 /* Align ACPI tables to 16 byte. */
108 start = (start + 0x0f) & -0x10;
111 printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx...\n", start);
113 /* We need at least an RSDP and an RSDT table. */
114 rsdp = (acpi_rsdp_t *) current;
115 current += sizeof(acpi_rsdp_t);
116 rsdt = (acpi_rsdt_t *) current;
117 current += sizeof(acpi_rsdt_t);
119 /* Clear all table memory. */
120 memset((void *) start, 0, current - start);
122 acpi_write_rsdp(rsdp, rsdt, NULL);
123 acpi_write_rsdt(rsdt);
125 /* We explicitly add these tables later on: */
126 printk(BIOS_DEBUG, "ACPI: * FACS\n");
128 /* we should align FACS to 64B as per ACPI specs */
130 current = ALIGN(current, 64);
131 facs = (acpi_facs_t *) current;
132 current += sizeof(acpi_facs_t);
133 acpi_create_facs(facs);
135 dsdt = (acpi_header_t *) current;
136 memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
137 current += dsdt->length;
138 memcpy(dsdt, &AmlCode, dsdt->length);
139 dsdt->checksum = 0; /* Don't trust iasl to get this right. */
140 dsdt->checksum = acpi_checksum((u8*)dsdt, dsdt->length);
141 printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt,
143 printk(BIOS_DEBUG, "ACPI: * FADT\n");
145 fadt = (acpi_fadt_t *) current;
146 current += sizeof(acpi_fadt_t);
148 acpi_create_fadt(fadt, facs, dsdt);
149 acpi_add_table(rsdp, fadt);
151 printk(BIOS_DEBUG, "ACPI: * HPET\n");
152 hpet = (acpi_hpet_t *) current;
153 current += sizeof(acpi_hpet_t);
154 acpi_create_hpet(hpet);
155 acpi_add_table(rsdp, hpet);
157 /* If we want to use HPET timers Linux wants an MADT. */
158 printk(BIOS_DEBUG, "ACPI: * MADT\n");
159 madt = (acpi_madt_t *) current;
160 acpi_create_madt(madt);
161 current += madt->header.length;
162 acpi_add_table(rsdp, madt);
164 printk(BIOS_DEBUG, "ACPI: * MCFG\n");
165 mcfg = (acpi_mcfg_t *) current;
166 acpi_create_mcfg(mcfg);
167 current += mcfg->header.length;
168 acpi_add_table(rsdp, mcfg);
170 printk(BIOS_DEBUG, "ACPI: * SRAT\n");
171 srat = (acpi_srat_t *) current;
172 acpi_create_srat(srat);
173 current += srat->header.length;
174 acpi_add_table(rsdp, srat);
177 printk(BIOS_DEBUG, "ACPI: * SLIT\n");
178 slit = (acpi_slit_t *) current;
179 acpi_create_slit(slit);
180 current+=slit->header.length;
181 acpi_add_table(rsdp,slit);
184 printk(BIOS_DEBUG, "ACPI: * SSDT\n");
185 ssdt = (acpi_header_t *)current;
187 acpi_create_ssdt_generator(ssdt, "DYNADATA");
188 current += ssdt->length;
189 acpi_add_table(rsdp, ssdt);
191 printk(BIOS_INFO, "ACPI: done.\n");