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>
30 #include <arch/ioapic.h>
35 extern const unsigned char AmlCode[];
36 #if CONFIG_HAVE_ACPI_SLIC
37 unsigned long acpi_create_slic(unsigned long current);
41 typedef struct acpi_oemb {
66 } __attribute__((packed)) acpi_oemb_t;
69 #include "southbridge/intel/i82801gx/i82801gx_nvs.h"
72 static void acpi_create_oemb(acpi_oemb_t *oemb)
74 acpi_header_t *header = &(oemb->header);
77 memset (oemb, 0, sizeof(*oemb));
79 /* fill out header fields */
80 memcpy(header->signature, "OEMB", 4);
81 memcpy(header->oem_id, OEM_ID, 6);
82 memcpy(header->oem_table_id, "COREBOOT", 8);
83 memcpy(header->asl_compiler_id, ASLC, 4);
85 header->length = sizeof(acpi_oemb_t);
88 oemb->ss = 0x09; // ss1 + ss 4
89 oemb->iost = 0x0403; // ??
91 tolud = pci_read_config32(dev_find_slot(0, PCI_DEVFN(2, 0)), 0x5c);
94 oemb->roms = 0xfff00000; // 1M hardcoded
96 oemb->mg1b = 0x000d0000;
97 oemb->mg1l = 0x00010000;
100 oemb->mg2l = 0-tolud;
103 oemb->hpta = 0x000e36c0;
106 acpi_checksum((void *) oemb, sizeof(acpi_oemb_t));
111 static void acpi_create_gnvs(global_nvs_t *gnvs)
113 memset((void *)gnvs, 0, sizeof(*gnvs));
115 gnvs->mpen = 1; /* Enable Multi Processing */
118 static void acpi_create_intel_hpet(acpi_hpet_t * hpet)
120 #define HPET_ADDR 0xfed00000ULL
121 acpi_header_t *header = &(hpet->header);
122 acpi_addr_t *addr = &(hpet->addr);
124 memset((void *) hpet, 0, sizeof(acpi_hpet_t));
126 /* fill out header fields */
127 memcpy(header->signature, "HPET", 4);
128 memcpy(header->oem_id, OEM_ID, 6);
129 memcpy(header->oem_table_id, "COREBOOT", 8);
130 memcpy(header->asl_compiler_id, ASLC, 4);
132 header->length = sizeof(acpi_hpet_t);
133 header->revision = 1;
135 /* fill out HPET address */
136 addr->space_id = 0; /* Memory */
137 addr->bit_width = 64;
138 addr->bit_offset = 0;
139 addr->addrl = HPET_ADDR & 0xffffffff;
140 addr->addrh = HPET_ADDR >> 32;
142 hpet->id = 0x8086a201; /* Intel */
144 hpet->min_tick = 0x0080;
147 acpi_checksum((void *) hpet, sizeof(acpi_hpet_t));
150 unsigned long acpi_fill_madt(unsigned long current)
153 current = acpi_create_madt_lapics(current);
156 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
160 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
161 current, 0, 0, 2, 0);
162 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
163 current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH);
168 unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
170 generate_cpu_entries();
171 return (unsigned long) (acpigen_get_current());
174 unsigned long acpi_fill_slit(unsigned long current)
180 unsigned long acpi_fill_srat(unsigned long current)
182 /* No NUMA, no SRAT */
186 #if CONFIG_HAVE_SMI_HANDLER
187 void smm_setup_structures(void *gnvs, void *tcg, void *smi1);
190 #define ALIGN_CURRENT current = ((current + 0x0f) & -0x10)
191 unsigned long write_acpi_tables(unsigned long start)
193 unsigned long current;
202 #if CONFIG_HAVE_ACPI_SLIC
213 /* Align ACPI tables to 16byte */
216 printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx.\n", start);
218 /* We need at least an RSDP and an RSDT Table */
219 rsdp = (acpi_rsdp_t *) current;
220 current += sizeof(acpi_rsdp_t);
222 rsdt = (acpi_rsdt_t *) current;
223 current += sizeof(acpi_rsdt_t);
226 /* clear all table memory */
227 memset((void *) start, 0, current - start);
229 acpi_write_rsdp(rsdp, rsdt, NULL);
230 acpi_write_rsdt(rsdt);
233 * We explicitly add these tables later on:
235 printk(BIOS_DEBUG, "ACPI: * HPET\n");
237 hpet = (acpi_hpet_t *) current;
238 current += sizeof(acpi_hpet_t);
240 acpi_create_intel_hpet(hpet);
241 acpi_add_table(rsdp, hpet);
243 /* If we want to use HPET Timers Linux wants an MADT */
244 printk(BIOS_DEBUG, "ACPI: * MADT\n");
246 madt = (acpi_madt_t *) current;
247 acpi_create_madt(madt);
248 current += madt->header.length;
250 acpi_add_table(rsdp, madt);
252 printk(BIOS_DEBUG, "ACPI: * MCFG\n");
253 mcfg = (acpi_mcfg_t *) current;
254 acpi_create_mcfg(mcfg);
255 current += mcfg->header.length;
257 acpi_add_table(rsdp, mcfg);
260 printk(BIOS_DEBUG, "ACPI: * OEMB\n");
261 oemb=(acpi_oemb_t *)current;
262 current += sizeof(acpi_oemb_t);
264 acpi_create_oemb(oemb);
265 acpi_add_table(rsdp, oemb);
268 printk(BIOS_DEBUG, "ACPI: * FACS\n");
269 facs = (acpi_facs_t *) current;
270 current += sizeof(acpi_facs_t);
272 acpi_create_facs(facs);
274 dsdt = (acpi_header_t *) current;
275 memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
276 current += dsdt->length;
277 memcpy(dsdt, &AmlCode, dsdt->length);
280 for (i=0; i < dsdt->length; i++) {
281 if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBEEF) {
282 printk(BIOS_DEBUG, "ACPI: Patching up DSDT at offset 0x%04x -> 0x%08x\n", i, 0x24 + (u32)oemb);
283 *(u32*)(((u32)dsdt) + i) = 0x24 + (u32)oemb;
291 /* Pack GNVS into the ACPI table area */
292 for (i=0; i < dsdt->length; i++) {
293 if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBABE) {
294 printk(BIOS_DEBUG, "ACPI: Patching up global NVS in DSDT at offset 0x%04x -> 0x%08lx\n", i, current);
295 *(u32*)(((u32)dsdt) + i) = current; // 0x92 bytes
301 acpi_create_gnvs((global_nvs_t *)current);
306 #if CONFIG_HAVE_SMI_HANDLER
307 /* And tell SMI about it */
308 smm_setup_structures((void *)current, NULL, NULL);
311 /* We patched up the DSDT, so we need to recalculate the checksum */
313 dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length);
315 printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt,
318 #if CONFIG_HAVE_ACPI_SLIC
319 printk(BIOS_DEBUG, "ACPI: * SLIC\n");
320 slic = (acpi_header_t *)current;
321 current += acpi_create_slic(current);
323 acpi_add_table(rsdp, slic);
326 printk(BIOS_DEBUG, "ACPI: * FADT\n");
327 fadt = (acpi_fadt_t *) current;
328 current += sizeof(acpi_fadt_t);
331 acpi_create_fadt(fadt, facs, dsdt);
332 acpi_add_table(rsdp, fadt);
334 printk(BIOS_DEBUG, "ACPI: * SSDT\n");
335 ssdt = (acpi_header_t *)current;
336 acpi_create_ssdt_generator(ssdt, "DYNADATA");
337 current += ssdt->length;
338 acpi_add_table(rsdp, ssdt);
340 printk(BIOS_DEBUG, "current = %lx\n", current);
342 printk(BIOS_DEBUG, "ACPI: * DMI (Linux workaround)\n");
343 memcpy((void *)0xfff80, dmi_table, DMI_TABLE_SIZE);
344 #if CONFIG_WRITE_HIGH_TABLES == 1
345 memcpy((void *)current, dmi_table, DMI_TABLE_SIZE);
346 current += DMI_TABLE_SIZE;
350 printk(BIOS_INFO, "ACPI: done.\n");