263 lines
6.6 KiB
C
263 lines
6.6 KiB
C
/*
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* This file is part of the coreboot project.
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*
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* Copyright (C) 2007-2009 coresystems GmbH
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <types.h>
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#include <string.h>
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#include <console/console.h>
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#include <arch/acpi.h>
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#include <arch/ioapic.h>
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#include <arch/acpigen.h>
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#include <arch/smp/mpspec.h>
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#include <device/device.h>
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#include <device/pci.h>
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#include <device/pci_ids.h>
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#include <cpu/x86/msr.h>
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extern const unsigned char AmlCode[];
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#if CONFIG_HAVE_ACPI_SLIC
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unsigned long acpi_create_slic(unsigned long current);
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#endif
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#include "southbridge/intel/i82801gx/nvs.h"
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static void acpi_create_gnvs(global_nvs_t *gnvs)
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{
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memset((void *)gnvs, 0, sizeof(*gnvs));
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gnvs->apic = 1;
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gnvs->mpen = 1; /* Enable Multi Processing */
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/* Enable both COM ports */
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gnvs->cmap = 0x01;
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gnvs->cmbp = 0x01;
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/* IGD Displays */
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gnvs->ndid = 3;
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gnvs->did[0] = 0x80000100;
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gnvs->did[1] = 0x80000240;
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gnvs->did[2] = 0x80000410;
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gnvs->did[3] = 0x80000410;
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gnvs->did[4] = 0x00000005;
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}
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static void acpi_create_intel_hpet(acpi_hpet_t * hpet)
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{
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#define HPET_ADDR 0xfed00000ULL
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acpi_header_t *header = &(hpet->header);
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acpi_addr_t *addr = &(hpet->addr);
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memset((void *) hpet, 0, sizeof(acpi_hpet_t));
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/* fill out header fields */
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memcpy(header->signature, "HPET", 4);
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memcpy(header->oem_id, OEM_ID, 6);
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memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
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memcpy(header->asl_compiler_id, ASLC, 4);
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header->length = sizeof(acpi_hpet_t);
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header->revision = 1;
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/* fill out HPET address */
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addr->space_id = 0; /* Memory */
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addr->bit_width = 64;
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addr->bit_offset = 0;
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addr->addrl = HPET_ADDR & 0xffffffff;
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addr->addrh = HPET_ADDR >> 32;
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hpet->id = 0x8086a201; /* Intel */
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hpet->number = 0x00;
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hpet->min_tick = 0x0080;
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header->checksum =
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acpi_checksum((void *) hpet, sizeof(acpi_hpet_t));
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}
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unsigned long acpi_fill_madt(unsigned long current)
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{
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/* Local APICs */
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current = acpi_create_madt_lapics(current);
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/* IOAPIC */
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current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
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2, IO_APIC_ADDR, 0);
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/* INT_SRC_OVR */
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current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
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current, 0, 0, 2, 0);
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current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
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current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH);
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return current;
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}
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unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
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{
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generate_cpu_entries();
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return (unsigned long) (acpigen_get_current());
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}
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unsigned long acpi_fill_slit(unsigned long current)
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{
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// Not implemented
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return current;
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}
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unsigned long acpi_fill_srat(unsigned long current)
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{
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/* No NUMA, no SRAT */
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return current;
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}
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void smm_setup_structures(void *gnvs, void *tcg, void *smi1);
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#define ALIGN_CURRENT current = ((current + 0x0f) & -0x10)
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unsigned long write_acpi_tables(unsigned long start)
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{
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unsigned long current;
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int i;
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acpi_rsdp_t *rsdp;
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acpi_rsdt_t *rsdt;
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acpi_xsdt_t *xsdt;
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acpi_hpet_t *hpet;
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acpi_madt_t *madt;
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acpi_mcfg_t *mcfg;
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acpi_fadt_t *fadt;
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acpi_facs_t *facs;
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#if CONFIG_HAVE_ACPI_SLIC
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acpi_header_t *slic;
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#endif
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acpi_header_t *ssdt;
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acpi_header_t *dsdt;
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current = start;
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/* Align ACPI tables to 16byte */
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ALIGN_CURRENT;
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printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx.\n", start);
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/* We need at least an RSDP and an RSDT Table */
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rsdp = (acpi_rsdp_t *) current;
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current += sizeof(acpi_rsdp_t);
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ALIGN_CURRENT;
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rsdt = (acpi_rsdt_t *) current;
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current += sizeof(acpi_rsdt_t);
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ALIGN_CURRENT;
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xsdt = (acpi_xsdt_t *) current;
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current += sizeof(acpi_xsdt_t);
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ALIGN_CURRENT;
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/* clear all table memory */
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memset((void *) start, 0, current - start);
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acpi_write_rsdp(rsdp, rsdt, xsdt);
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acpi_write_rsdt(rsdt);
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acpi_write_xsdt(xsdt);
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/*
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* We explicitly add these tables later on:
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*/
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printk(BIOS_DEBUG, "ACPI: * HPET\n");
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hpet = (acpi_hpet_t *) current;
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current += sizeof(acpi_hpet_t);
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ALIGN_CURRENT;
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acpi_create_intel_hpet(hpet);
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acpi_add_table(rsdp, hpet);
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/* If we want to use HPET Timers Linux wants an MADT */
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printk(BIOS_DEBUG, "ACPI: * MADT\n");
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madt = (acpi_madt_t *) current;
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acpi_create_madt(madt);
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current += madt->header.length;
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ALIGN_CURRENT;
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acpi_add_table(rsdp, madt);
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printk(BIOS_DEBUG, "ACPI: * MCFG\n");
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mcfg = (acpi_mcfg_t *) current;
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acpi_create_mcfg(mcfg);
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current += mcfg->header.length;
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ALIGN_CURRENT;
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acpi_add_table(rsdp, mcfg);
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printk(BIOS_DEBUG, "ACPI: * FACS\n");
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facs = (acpi_facs_t *) current;
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current += sizeof(acpi_facs_t);
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ALIGN_CURRENT;
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acpi_create_facs(facs);
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dsdt = (acpi_header_t *) current;
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memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
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current += dsdt->length;
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memcpy(dsdt, &AmlCode, dsdt->length);
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ALIGN_CURRENT;
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/* Pack GNVS into the ACPI table area */
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for (i=0; i < dsdt->length; i++) {
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if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBABE) {
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printk(BIOS_DEBUG, "ACPI: Patching up global NVS in DSDT at offset 0x%04x -> 0x%08lx\n", i, current);
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*(u32*)(((u32)dsdt) + i) = current; // 0x92 bytes
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break;
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}
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}
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/* And fill it */
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acpi_create_gnvs((global_nvs_t *)current);
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current += 0x100;
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ALIGN_CURRENT;
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/* And tell SMI about it */
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smm_setup_structures((void *)current, NULL, NULL);
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/* We patched up the DSDT, so we need to recalculate the checksum */
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dsdt->checksum = 0;
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dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length);
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printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt,
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dsdt->length);
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#if CONFIG_HAVE_ACPI_SLIC
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printk(BIOS_DEBUG, "ACPI: * SLIC\n");
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slic = (acpi_header_t *)current;
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current += acpi_create_slic(current);
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ALIGN_CURRENT;
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acpi_add_table(rsdp, slic);
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#endif
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printk(BIOS_DEBUG, "ACPI: * FADT\n");
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fadt = (acpi_fadt_t *) current;
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current += sizeof(acpi_fadt_t);
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ALIGN_CURRENT;
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acpi_create_fadt(fadt, facs, dsdt);
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acpi_add_table(rsdp, fadt);
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printk(BIOS_DEBUG, "ACPI: * SSDT\n");
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ssdt = (acpi_header_t *)current;
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acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR);
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current += ssdt->length;
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acpi_add_table(rsdp, ssdt);
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ALIGN_CURRENT;
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printk(BIOS_DEBUG, "current = %lx\n", current);
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printk(BIOS_INFO, "ACPI: done.\n");
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return current;
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}
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