2 * This file is part of the coreboot project.
4 * Copyright (C) 2007-2009 coresystems GmbH
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; version 2 of the License.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #include <console/console.h>
23 #include <arch/acpi.h>
24 #include <arch/acpigen.h>
25 #include <arch/smp/mpspec.h>
26 #include <device/device.h>
27 #include <device/pci.h>
28 #include <device/pci_ids.h>
29 #include <cpu/x86/msr.h>
34 extern const unsigned char AmlCode[];
35 #if CONFIG_HAVE_ACPI_SLIC
36 unsigned long acpi_create_slic(unsigned long current);
40 typedef struct acpi_oemb {
65 } __attribute__((packed)) acpi_oemb_t;
68 #include "southbridge/intel/i82801gx/i82801gx_nvs.h"
71 static void acpi_create_oemb(acpi_oemb_t *oemb)
73 acpi_header_t *header = &(oemb->header);
76 memset (oemb, 0, sizeof(*oemb));
78 /* fill out header fields */
79 memcpy(header->signature, "OEMB", 4);
80 memcpy(header->oem_id, OEM_ID, 6);
81 memcpy(header->oem_table_id, "COREBOOT", 8);
82 memcpy(header->asl_compiler_id, ASLC, 4);
84 header->length = sizeof(acpi_oemb_t);
87 oemb->ss = 0x09; // ss1 + ss 4
88 oemb->iost = 0x0403; // ??
90 tolud = pci_read_config32(dev_find_slot(0, PCI_DEVFN(2, 0)), 0x5c);
93 oemb->roms = 0xfff00000; // 1M hardcoded
95 oemb->mg1b = 0x000d0000;
96 oemb->mg1l = 0x00010000;
102 oemb->hpta = 0x000e36c0;
105 acpi_checksum((void *) oemb, sizeof(acpi_oemb_t));
110 static void acpi_create_gnvs(global_nvs_t *gnvs)
112 memset((void *)gnvs, 0, sizeof(*gnvs));
114 gnvs->mpen = 1; /* Enable Multi Processing */
117 static void acpi_create_intel_hpet(acpi_hpet_t * hpet)
119 #define HPET_ADDR 0xfed00000ULL
120 acpi_header_t *header = &(hpet->header);
121 acpi_addr_t *addr = &(hpet->addr);
123 memset((void *) hpet, 0, sizeof(acpi_hpet_t));
125 /* fill out header fields */
126 memcpy(header->signature, "HPET", 4);
127 memcpy(header->oem_id, OEM_ID, 6);
128 memcpy(header->oem_table_id, "COREBOOT", 8);
129 memcpy(header->asl_compiler_id, ASLC, 4);
131 header->length = sizeof(acpi_hpet_t);
132 header->revision = 1;
134 /* fill out HPET address */
135 addr->space_id = 0; /* Memory */
136 addr->bit_width = 64;
137 addr->bit_offset = 0;
138 addr->addrl = HPET_ADDR & 0xffffffff;
139 addr->addrh = HPET_ADDR >> 32;
141 hpet->id = 0x8086a201; /* Intel */
143 hpet->min_tick = 0x0080;
146 acpi_checksum((void *) hpet, sizeof(acpi_hpet_t));
149 #define IO_APIC_ADDR 0xfec00000UL
151 unsigned long acpi_fill_madt(unsigned long current)
154 current = acpi_create_madt_lapics(current);
157 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
161 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
162 current, 0, 0, 2, 0);
163 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
164 current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH);
169 unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
171 generate_cpu_entries();
172 return (unsigned long) (acpigen_get_current());
175 unsigned long acpi_fill_slit(unsigned long current)
181 unsigned long acpi_fill_srat(unsigned long current)
183 /* No NUMA, no SRAT */
187 #if CONFIG_HAVE_SMI_HANDLER
188 void smm_setup_structures(void *gnvs, void *tcg, void *smi1);
191 #define ALIGN_CURRENT current = ((current + 0x0f) & -0x10)
192 unsigned long write_acpi_tables(unsigned long start)
194 unsigned long current;
203 #if CONFIG_HAVE_ACPI_SLIC
214 /* Align ACPI tables to 16byte */
217 printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx.\n", start);
219 /* We need at least an RSDP and an RSDT Table */
220 rsdp = (acpi_rsdp_t *) current;
221 current += sizeof(acpi_rsdp_t);
223 rsdt = (acpi_rsdt_t *) current;
224 current += sizeof(acpi_rsdt_t);
227 /* clear all table memory */
228 memset((void *) start, 0, current - start);
230 acpi_write_rsdp(rsdp, rsdt, NULL);
231 acpi_write_rsdt(rsdt);
234 * We explicitly add these tables later on:
236 printk(BIOS_DEBUG, "ACPI: * HPET\n");
238 hpet = (acpi_hpet_t *) current;
239 current += sizeof(acpi_hpet_t);
241 acpi_create_intel_hpet(hpet);
242 acpi_add_table(rsdp, hpet);
244 /* If we want to use HPET Timers Linux wants an MADT */
245 printk(BIOS_DEBUG, "ACPI: * MADT\n");
247 madt = (acpi_madt_t *) current;
248 acpi_create_madt(madt);
249 current += madt->header.length;
251 acpi_add_table(rsdp, madt);
253 printk(BIOS_DEBUG, "ACPI: * MCFG\n");
254 mcfg = (acpi_mcfg_t *) current;
255 acpi_create_mcfg(mcfg);
256 current += mcfg->header.length;
258 acpi_add_table(rsdp, mcfg);
261 printk(BIOS_DEBUG, "ACPI: * OEMB\n");
262 oemb=(acpi_oemb_t *)current;
263 current += sizeof(acpi_oemb_t);
265 acpi_create_oemb(oemb);
266 acpi_add_table(rsdp, oemb);
269 printk(BIOS_DEBUG, "ACPI: * FACS\n");
270 facs = (acpi_facs_t *) current;
271 current += sizeof(acpi_facs_t);
273 acpi_create_facs(facs);
275 dsdt = (acpi_header_t *) current;
276 memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
277 current += dsdt->length;
278 memcpy(dsdt, &AmlCode, dsdt->length);
281 for (i=0; i < dsdt->length; i++) {
282 if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBEEF) {
283 printk(BIOS_DEBUG, "ACPI: Patching up DSDT at offset 0x%04x -> 0x%08x\n", i, 0x24 + (u32)oemb);
284 *(u32*)(((u32)dsdt) + i) = 0x24 + (u32)oemb;
292 /* Pack GNVS into the ACPI table area */
293 for (i=0; i < dsdt->length; i++) {
294 if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBABE) {
295 printk(BIOS_DEBUG, "ACPI: Patching up global NVS in DSDT at offset 0x%04x -> 0x%08lx\n", i, current);
296 *(u32*)(((u32)dsdt) + i) = current; // 0x92 bytes
302 acpi_create_gnvs((global_nvs_t *)current);
307 #if CONFIG_HAVE_SMI_HANDLER
308 /* And tell SMI about it */
309 smm_setup_structures((void *)current, NULL, NULL);
312 /* We patched up the DSDT, so we need to recalculate the checksum */
314 dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length);
316 printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt,
319 #if CONFIG_HAVE_ACPI_SLIC
320 printk(BIOS_DEBUG, "ACPI: * SLIC\n");
321 slic = (acpi_header_t *)current;
322 current += acpi_create_slic(current);
324 acpi_add_table(rsdp, slic);
327 printk(BIOS_DEBUG, "ACPI: * FADT\n");
328 fadt = (acpi_fadt_t *) current;
329 current += sizeof(acpi_fadt_t);
332 acpi_create_fadt(fadt, facs, dsdt);
333 acpi_add_table(rsdp, fadt);
335 printk(BIOS_DEBUG, "ACPI: * SSDT\n");
336 ssdt = (acpi_header_t *)current;
337 acpi_create_ssdt_generator(ssdt, "DYNADATA");
338 current += ssdt->length;
339 acpi_add_table(rsdp, ssdt);
341 printk(BIOS_DEBUG, "current = %lx\n", current);
343 printk(BIOS_DEBUG, "ACPI: * DMI (Linux workaround)\n");
344 memcpy((void *)0xfff80, dmi_table, DMI_TABLE_SIZE);
345 #if CONFIG_WRITE_HIGH_TABLES == 1
346 memcpy((void *)current, dmi_table, DMI_TABLE_SIZE);
347 current += DMI_TABLE_SIZE;
351 printk(BIOS_INFO, "ACPI: done.\n");