src/mainboard/asus/a8v-e_se/acpi_tables.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Written by Stefan Reinauer <stepan@openbios.org>.
   5  * ACPI FADT, FACS, and DSDT table support added by
   6  *
   7  * Copyright (C) 2004 Stefan Reinauer <stepan@openbios.org>
   8  * Copyright (C) 2005 Nick Barker <nick.barker9@btinternet.com>
   9  * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz>
  10  *
  11  * This program is free software; you can redistribute it and/or modify
  12  * it under the terms of the GNU General Public License as published by
  13  * the Free Software Foundation; version 2 of the License.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  *
  20  * You should have received a copy of the GNU General Public License
  21  * along with this program; if not, write to the Free Software
  22  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  23  */
  24
  25 #include <console/console.h>
  26 #include <string.h>
  27 #include <arch/acpi.h>
  28 #include <arch/smp/mpspec.h>
  29 #include <arch/ioapic.h>
  30 #include <device/device.h>
  31 #include <device/pci_ids.h>
  32 #include "southbridge/via/vt8237r/vt8237r.h"
  33 #include "southbridge/via/k8t890/k8t890.h"
  34 #include "northbridge/amd/amdk8/acpi.h"
  35 #include <cpu/amd/model_fxx_powernow.h>
  36
  37 extern const unsigned char AmlCode[];
  38
  39 unsigned long acpi_fill_mcfg(unsigned long current)
  40 {
  41         device_t dev;
  42         struct resource *res;
  43
  44         dev = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_K8T890CE_5, 0);
  45         if (!dev)
  46                 return current;
  47
  48         res = find_resource(dev, K8T890_MMCONFIG_MBAR);
  49         if (res) {
  50                 current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)
  51                                 current, res->base, 0x0, 0x0, 0xff);
  52         }
  53         return current;
  54 }
  55
  56 unsigned long acpi_fill_madt(unsigned long current)
  57 {
  58         unsigned int gsi_base = 0x18;
  59
  60         /* Create all subtables for processors. */
  61         current = acpi_create_madt_lapics(current);
  62
  63         /* Write SB IOAPIC. */
  64         current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
  65                                 VT8237R_APIC_ID, IO_APIC_ADDR, 0);
  66
  67         /* Write NB IOAPIC. */
  68         current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
  69                                 K8T890_APIC_ID, K8T890_APIC_BASE, gsi_base);
  70
  71         /* IRQ9 ACPI active low. */
  72         current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
  73                 current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW);
  74
  75         /* IRQ0 -> APIC IRQ2. */
  76         current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
  77                                                 current, 0, 0, 2, 0x0);
  78
  79         /* Create all subtables for processors. */
  80         current = acpi_create_madt_lapic_nmis(current,
  81                         MP_IRQ_TRIGGER_EDGE | MP_IRQ_POLARITY_HIGH, 1);
  82
  83         return current;
  84 }
  85
  86 unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
  87 {
  88         k8acpi_write_vars();
  89         amd_model_fxx_generate_powernow(0, 0, 0);
  90         acpigen_write_mainboard_resources("\\_SB.PCI0.MBRS", "_CRS");
  91         return (unsigned long) (acpigen_get_current());
  92 }
  93
  94 unsigned long write_acpi_tables(unsigned long start)
  95 {
  96         unsigned long current;
  97         acpi_rsdp_t *rsdp;
  98         acpi_srat_t *srat;
  99         acpi_rsdt_t *rsdt;
 100         acpi_madt_t *madt;
 101         acpi_mcfg_t *mcfg;
 102         acpi_fadt_t *fadt;
 103         acpi_facs_t *facs;
 104         acpi_header_t *ssdt;
 105         acpi_header_t *dsdt;
 106
 107         /* Align ACPI tables to 16 byte. */
 108         start = (start + 0x0f) & -0x10;
 109         current = start;
 110
 111         printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx...\n", start);
 112
 113         /* We need at least an RSDP and an RSDT table. */
 114         rsdp = (acpi_rsdp_t *) current;
 115         current += sizeof(acpi_rsdp_t);
 116         rsdt = (acpi_rsdt_t *) current;
 117         current += sizeof(acpi_rsdt_t);
 118
 119         /* Clear all table memory. */
 120         memset((void *) start, 0, current - start);
 121
 122         acpi_write_rsdp(rsdp, rsdt, NULL);
 123         acpi_write_rsdt(rsdt);
 124
 125         /* We explicitly add these tables later on: */
 126         printk(BIOS_DEBUG, "ACPI:     * FACS\n");
 127         facs = (acpi_facs_t *) current;
 128         current += sizeof(acpi_facs_t);
 129         acpi_create_facs(facs);
 130
 131         dsdt = (acpi_header_t *)current;
 132         memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
 133         current += dsdt->length;
 134         memcpy(dsdt, &AmlCode, dsdt->length);
 135         dsdt->checksum = 0;     /* Don't trust iasl to get this right. */
 136         dsdt->checksum = acpi_checksum((u8*)dsdt, dsdt->length);
 137         printk(BIOS_DEBUG, "ACPI:     * DSDT @ %p Length %x\n", dsdt,
 138                      dsdt->length);
 139         printk(BIOS_DEBUG, "ACPI:     * FADT\n");
 140
 141         fadt = (acpi_fadt_t *) current;
 142         current += sizeof(acpi_fadt_t);
 143
 144         acpi_create_fadt(fadt, facs, dsdt);
 145         acpi_add_table(rsdp, fadt);
 146
 147         /* If we want to use HPET timers Linux wants it in MADT. */
 148         printk(BIOS_DEBUG, "ACPI:    * MADT\n");
 149         madt = (acpi_madt_t *) current;
 150         acpi_create_madt(madt);
 151         current += madt->header.length;
 152         acpi_add_table(rsdp, madt);
 153         printk(BIOS_DEBUG, "ACPI:    * MCFG\n");
 154         mcfg = (acpi_mcfg_t *) current;
 155         acpi_create_mcfg(mcfg);
 156         current += mcfg->header.length;
 157         acpi_add_table(rsdp, mcfg);
 158
 159         printk(BIOS_DEBUG, "ACPI:    * SRAT\n");
 160         srat = (acpi_srat_t *) current;
 161         acpi_create_srat(srat);
 162         current += srat->header.length;
 163         acpi_add_table(rsdp, srat);
 164
 165         /* SSDT */
 166         printk(BIOS_DEBUG, "ACPI:    * SSDT\n");
 167         ssdt = (acpi_header_t *)current;
 168
 169         acpi_create_ssdt_generator(ssdt, "DYNADATA");
 170         current += ssdt->length;
 171         acpi_add_table(rsdp, ssdt);
 172
 173         printk(BIOS_INFO, "ACPI: done.\n");
 174         return current;
 175 }