2 * This file is part of the coreboot project.
4 * Copyright (C) 2007-2008 coresystems GmbH
5 * Copyright (C) 2009 Thomas Jourdan <thomas.jourdan@gmail.com>
7 * This program is free software; you can redistribute it and/or
8 * modify it under the terms of the GNU General Public License as
9 * published by the Free Software Foundation; version 2 of
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
24 #include <console/console.h>
25 #include <arch/acpi.h>
26 #include <device/device.h>
27 #include <device/pci.h>
28 #include <device/pci_ids.h>
31 extern const unsigned char AmlCode[];
33 unsigned long acpi_fill_mcfg(unsigned long current)
38 dev = dev_find_device(0x8086, 0x35B0, 0); // 0:0x13.0
42 // MMCFG not supported or not enabled.
43 mmcfg = ((u64) pci_read_config16(dev, 0xce)) << 16;
47 current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current,
48 mmcfg, 0x0, 0x0, 0xff);
53 static void acpi_create_intel_hpet(acpi_hpet_t * hpet)
55 #define HPET_ADDR 0xfed00000ULL
56 acpi_header_t *header = &(hpet->header);
57 acpi_addr_t *addr = &(hpet->addr);
59 memset((void *) hpet, 0, sizeof(acpi_hpet_t));
61 /* fill out header fields */
62 memcpy(header->signature, "HPET", 4);
63 memcpy(header->oem_id, OEM_ID, 6);
64 memcpy(header->oem_table_id, "IC ", 8);
65 memcpy(header->asl_compiler_id, ASLC, 4);
67 header->length = sizeof(acpi_hpet_t);
70 /* fill out HPET address */
71 // XXX factory bios just puts an address here -- who's right?
72 addr->space_id = 0; /* Memory */
75 addr->addrl = HPET_ADDR & 0xffffffff;
76 addr->addrh = HPET_ADDR >> 32;
78 hpet->id = 0x80861234;
80 hpet->min_tick = 0x0090;
82 header->checksum = acpi_checksum((void *) hpet, sizeof(acpi_hpet_t));
87 #define IO_APIC0_ADDR 0xfec00000UL
88 #define IO_APIC1_ADDR 0xfec10000UL
90 unsigned long acpi_fill_madt(unsigned long current)
92 unsigned int irq_start = 0;
94 unsigned char bus_isa;
97 current += acpi_create_madt_lapic((acpi_madt_lapic_t *) current, 1, 0);
98 // This one is for the second core... Will it hurt?
99 current += acpi_create_madt_lapic((acpi_madt_lapic_t *) current, 2, 1);
102 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, IO_APIC0, IO_APIC0_ADDR, irq_start);
103 irq_start += INTEL_IOAPIC_NUM_INTERRUPTS;
104 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, IO_APIC1, IO_APIC1_ADDR, irq_start);
105 irq_start += INTEL_IOAPIC_NUM_INTERRUPTS;
107 dev = dev_find_slot(0, PCI_DEVFN(0x1e,0));
110 bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
113 printk(BIOS_DEBUG, "ERROR - could not find PCI 0:1e.0, using defaults\n");
117 /* Map ISA IRQ 0 to IRQ 2 */
118 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current, bus_isa, 0, 2, 0);
120 /* IRQ9 differs from ISA standard - ours is active high, level-triggered */
121 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current, 0, 9, 9, 0x000d);
126 unsigned long acpi_fill_slit(unsigned long current)
132 unsigned long acpi_fill_srat(unsigned long current)
134 /* No NUMA, no SRAT */
139 #define ALIGN_CURRENT current = ((current + 0x0f) & -0x10)
140 unsigned long write_acpi_tables(unsigned long start)
142 unsigned long current;
154 /* Align ACPI tables to 16byte */
157 printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx.\n", current);
159 /* We need at least an RSDP and an RSDT Table */
160 rsdp = (acpi_rsdp_t *) current;
161 current += sizeof(acpi_rsdp_t);
163 rsdt = (acpi_rsdt_t *) current;
164 current += sizeof(acpi_rsdt_t);
167 /* clear all table memory */
168 memset((void *) start, 0, current - start);
170 acpi_write_rsdp(rsdp, rsdt, NULL);
171 acpi_write_rsdt(rsdt);
174 * We explicitly add these tables later on:
176 printk(BIOS_DEBUG, "ACPI: * HPET\n");
178 hpet = (acpi_hpet_t *) current;
179 current += sizeof(acpi_hpet_t);
181 acpi_create_intel_hpet(hpet);
182 acpi_add_table(rsdp, hpet);
184 /* If we want to use HPET Timers Linux wants an MADT */
185 printk(BIOS_DEBUG, "ACPI: * MADT\n");
187 madt = (acpi_madt_t *) current;
188 acpi_create_madt(madt);
189 current += madt->header.length;
191 acpi_add_table(rsdp, madt);
193 printk(BIOS_DEBUG, "ACPI: * MCFG\n");
194 mcfg = (acpi_mcfg_t *) current;
195 acpi_create_mcfg(mcfg);
196 current += mcfg->header.length;
198 acpi_add_table(rsdp, mcfg);
200 printk(BIOS_DEBUG, "ACPI: * FACS\n");
201 facs = (acpi_facs_t *) current;
202 current += sizeof(acpi_facs_t);
204 acpi_create_facs(facs);
206 dsdt = (acpi_header_t *) current;
207 memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
208 current += dsdt->length;
209 memcpy(dsdt, &AmlCode, dsdt->length);
212 printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt,
215 printk(BIOS_DEBUG, "ACPI: * FADT\n");
216 fadt = (acpi_fadt_t *) current;
217 current += sizeof(acpi_fadt_t);
220 acpi_create_fadt(fadt, facs, dsdt);
221 acpi_add_table(rsdp, fadt);
223 printk(BIOS_INFO, "ACPI: done.\n");