280 lines
7.6 KiB
C
280 lines
7.6 KiB
C
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/*
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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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* Copyright (C) 2013 Vladimir Serbinenko <phcoder@gmail.com>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; version 2 of
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* 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,
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* MA 02110-1301 USA
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*/
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#include <string.h>
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#include <console/console.h>
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#include <arch/io.h>
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#include <arch/ioapic.h>
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#include <arch/acpi.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 "southbridge/intel/ibexpeak/nvs.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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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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gnvs->pcnt = dev_count_cpu();
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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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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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1, 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,
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MP_IRQ_POLARITY_DEFAULT |
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MP_IRQ_TRIGGER_DEFAULT);
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current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
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current, 0, 9, 9,
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MP_IRQ_POLARITY_HIGH |
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MP_IRQ_TRIGGER_LEVEL);
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/* LAPIC_NMI */
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current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)
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current, 0,
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MP_IRQ_POLARITY_HIGH |
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MP_IRQ_TRIGGER_EDGE, 0x01);
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current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)
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current, 1, MP_IRQ_POLARITY_HIGH |
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MP_IRQ_TRIGGER_EDGE, 0x01);
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current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)
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current, 2, MP_IRQ_POLARITY_HIGH |
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MP_IRQ_TRIGGER_EDGE, 0x01);
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current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)
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current, 3, MP_IRQ_POLARITY_HIGH |
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MP_IRQ_TRIGGER_EDGE, 0x01);
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return current;
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}
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unsigned long acpi_fill_ssdt_generator(unsigned long current,
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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 = (ALIGN(current, 16))
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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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void *gnvs;
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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_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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/* Fix up global NVS region for SMI handler. The GNVS region lives
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* in the (high) table area. The low memory map looks like this:
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*
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* 0x00000000 - 0x000003ff Real Mode IVT
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* 0x00000400 - 0x000004ff BDA (somewhat unused)
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* 0x00000500 - 0x0000052f Moved GDT
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* 0x00000530 - 0x00000b64 coreboot table
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* 0x0007c000 - 0x0007dfff OS boot sector (unused?)
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* 0x0007e000 - 0x0007ffff free to use (so no good for acpi+smi)
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* 0x00080000 - 0x0009fbff usable ram
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* 0x0009fc00 - 0x0009ffff EBDA (unused?)
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* 0x000a0000 - 0x000bffff VGA memory
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* 0x000c0000 - 0x000cffff VGA option rom
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* 0x000d0000 - 0x000dffff free for other option roms?
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* 0x000e0000 - 0x000fffff SeaBIOS? (if payload is SeaBIOS it
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overwrites those tables when
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loading but uses tables at the RAM
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end to put the tables again in suitable
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place)
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* 0x000f0000 - 0x000f03ff PIRQ table
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* 0x000f0400 - 0x000f66?? ACPI tables
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* 0x000f66?? - 0x000f???? DMI tables
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*/
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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,
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"ACPI: Patching up global NVS in DSDT at offset 0x%04x -> 0x%08x\n",
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i, (u32) current);
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*(u32 *) (((u32) dsdt) + i) = current;
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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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/* Keep pointer around */
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gnvs = (void *)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(gnvs, 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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