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 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 typedef struct acpi_gnvs {
75 } __attribute__((packed)) acpi_gnvs_t;
78 void acpi_create_oemb(acpi_oemb_t *oemb)
80 acpi_header_t *header = &(oemb->header);
83 memset (oemb, 0, sizeof(*oemb));
85 /* fill out header fields */
86 memcpy(header->signature, "OEMB", 4);
87 memcpy(header->oem_id, OEM_ID, 6);
88 memcpy(header->oem_table_id, "COREBOOT", 8);
89 memcpy(header->asl_compiler_id, ASLC, 4);
91 header->length = sizeof(acpi_oemb_t);
94 oemb->ss = 0x09; // ss1 + ss 4
95 oemb->iost = 0x0403; // ??
97 tolud = pci_read_config32(dev_find_slot(0, PCI_DEVFN(2, 0)), 0x5c);
100 oemb->roms = 0xfff00000; // 1M hardcoded
102 oemb->mg1b = 0x000d0000;
103 oemb->mg1l = 0x00010000;
106 oemb->mg2l = 0-tolud;
109 oemb->hpta = 0x000e36c0;
112 acpi_checksum((void *) oemb, sizeof(acpi_oemb_t));
117 void acpi_create_gnvs(acpi_gnvs_t *gnvs)
119 memset((void *)gnvs, 0, sizeof(*gnvs));
123 void acpi_create_intel_hpet(acpi_hpet_t * hpet)
125 #define HPET_ADDR 0xfed00000ULL
126 acpi_header_t *header = &(hpet->header);
127 acpi_addr_t *addr = &(hpet->addr);
129 memset((void *) hpet, 0, sizeof(acpi_hpet_t));
131 /* fill out header fields */
132 memcpy(header->signature, "HPET", 4);
133 memcpy(header->oem_id, OEM_ID, 6);
134 memcpy(header->oem_table_id, "COREBOOT", 8);
135 memcpy(header->asl_compiler_id, ASLC, 4);
137 header->length = sizeof(acpi_hpet_t);
138 header->revision = 1;
140 /* fill out HPET address */
141 addr->space_id = 0; /* Memory */
142 addr->bit_width = 64;
143 addr->bit_offset = 0;
144 addr->addrl = HPET_ADDR & 0xffffffff;
145 addr->addrh = HPET_ADDR >> 32;
147 hpet->id = 0x8086a201; /* Intel */
149 hpet->min_tick = 0x0080;
152 acpi_checksum((void *) hpet, sizeof(acpi_hpet_t));
155 #define IO_APIC_ADDR 0xfec00000UL
157 unsigned long acpi_fill_madt(unsigned long current)
160 current = acpi_create_madt_lapics(current);
163 current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
167 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
168 current, 0, 0, 2, 0);
169 current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
170 current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH);
175 unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
177 generate_cpu_entries();
178 return (unsigned long) (acpigen_get_current());
181 unsigned long acpi_fill_slit(unsigned long current)
187 unsigned long acpi_fill_srat(unsigned long current)
189 /* No NUMA, no SRAT */
193 #if CONFIG_HAVE_SMI_HANDLER
194 void smm_setup_structures(void *gnvs, void *tcg, void *smi1);
197 #define ALIGN_CURRENT current = ((current + 0x0f) & -0x10)
198 unsigned long write_acpi_tables(unsigned long start)
200 unsigned long current;
209 #if CONFIG_HAVE_ACPI_SLIC
221 /* Align ACPI tables to 16byte */
224 printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx.\n", start);
226 /* We need at least an RSDP and an RSDT Table */
227 rsdp = (acpi_rsdp_t *) current;
228 current += sizeof(acpi_rsdp_t);
230 rsdt = (acpi_rsdt_t *) current;
231 current += sizeof(acpi_rsdt_t);
234 /* clear all table memory */
235 memset((void *) start, 0, current - start);
237 acpi_write_rsdp(rsdp, rsdt, NULL);
238 acpi_write_rsdt(rsdt);
241 * We explicitly add these tables later on:
243 printk(BIOS_DEBUG, "ACPI: * HPET\n");
245 hpet = (acpi_hpet_t *) current;
246 current += sizeof(acpi_hpet_t);
248 acpi_create_intel_hpet(hpet);
249 acpi_add_table(rsdp, hpet);
251 /* If we want to use HPET Timers Linux wants an MADT */
252 printk(BIOS_DEBUG, "ACPI: * MADT\n");
254 madt = (acpi_madt_t *) current;
255 acpi_create_madt(madt);
256 current += madt->header.length;
258 acpi_add_table(rsdp, madt);
260 printk(BIOS_DEBUG, "ACPI: * MCFG\n");
261 mcfg = (acpi_mcfg_t *) current;
262 acpi_create_mcfg(mcfg);
263 current += mcfg->header.length;
265 acpi_add_table(rsdp, mcfg);
268 printk(BIOS_DEBUG, "ACPI: * OEMB\n");
269 oemb=(acpi_oemb_t *)current;
270 current += sizeof(acpi_oemb_t);
272 acpi_create_oemb(oemb);
273 acpi_add_table(rsdp, oemb);
276 printk(BIOS_DEBUG, "ACPI: * FACS\n");
277 facs = (acpi_facs_t *) current;
278 current += sizeof(acpi_facs_t);
280 acpi_create_facs(facs);
282 dsdt = (acpi_header_t *) current;
283 current += ((acpi_header_t *) AmlCode)->length;
284 memcpy((void *) dsdt, (void *) AmlCode,
285 ((acpi_header_t *) AmlCode)->length);
288 for (i=0; i < dsdt->length; i++) {
289 if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBEEF) {
290 printk(BIOS_DEBUG, "ACPI: Patching up DSDT at offset 0x%04x -> 0x%08x\n", i, 0x24 + (u32)oemb);
291 *(u32*)(((u32)dsdt) + i) = 0x24 + (u32)oemb;
299 /* Pack GNVS into the ACPI table area */
300 for (i=0; i < dsdt->length; i++) {
301 if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBABE) {
302 printk(BIOS_DEBUG, "ACPI: Patching up global NVS in DSDT at offset 0x%04x -> 0x%08x\n", i, current);
303 *(u32*)(((u32)dsdt) + i) = current; // 0x92 bytes
309 acpi_create_gnvs(current);
314 #if CONFIG_HAVE_SMI_HANDLER
315 /* And tell SMI about it */
316 smm_setup_structures((void *)current, NULL, NULL);
319 /* We patched up the DSDT, so we need to recalculate the checksum */
321 dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length);
323 printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt,
326 #if CONFIG_HAVE_ACPI_SLIC
327 printk(BIOS_DEBUG, "ACPI: * SLIC\n");
328 slic = (acpi_header_t *)current;
329 current += acpi_create_slic(current);
331 acpi_add_table(rsdp, slic);
334 printk(BIOS_DEBUG, "ACPI: * FADT\n");
335 fadt = (acpi_fadt_t *) current;
336 current += sizeof(acpi_fadt_t);
339 acpi_create_fadt(fadt, facs, dsdt);
340 acpi_add_table(rsdp, fadt);
342 printk(BIOS_DEBUG, "ACPI: * SSDT\n");
343 ssdt = (acpi_header_t *)current;
344 acpi_create_ssdt_generator(ssdt, "DYNADATA");
345 current += ssdt->length;
346 acpi_add_table(rsdp, ssdt);
348 printk(BIOS_DEBUG, "current = %lx\n", current);
350 printk(BIOS_DEBUG, "ACPI: * DMI (Linux workaround)\n");
351 memcpy((void *)0xfff80, dmi_table, DMI_TABLE_SIZE);
352 #if CONFIG_WRITE_HIGH_TABLES == 1
353 memcpy((void *)current, dmi_table, DMI_TABLE_SIZE);
354 current += DMI_TABLE_SIZE;
358 printk(BIOS_INFO, "ACPI: done.\n");