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

   1 /*
   2  * This file is part of the coreboot project.
   3  * written by Stefan Reinauer <stepan@openbios.org>
   4  * ACPI FADT, FACS, and DSDT table support added by
   5  *
   6  * Copyright (C) 2004 Stefan Reinauer <stepan@openbios.org>
   7  * Copyright (C) 2005 Nick Barker <nick.barker9@btinternet.com>
   8  * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License v2 as published by
  12  * the Free Software Foundation.
  13  *
  14  * This program is distributed in the hope that it will be useful,
  15  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  16  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  17  * GNU General Public License for more details.
  18  *
  19  * You should have received a copy of the GNU General Public License
  20  * along with this program; if not, write to the Free Software
  21  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  22  */
  23
  24 #include <console/console.h>
  25 #include <string.h>
  26 #include <arch/acpi.h>
  27 #include <arch/smp/mpspec.h>
  28 #include <device/device.h>
  29 #include <device/pci_ids.h>
  30
  31 #include <../../../southbridge/via/vt8237r/vt8237r.h>
  32 #include <../../../southbridge/via/k8t890/k8t890.h>
  33
  34 extern unsigned char AmlCode[];
  35
  36 unsigned long acpi_fill_mcfg(unsigned long current)
  37 {
  38         device_t dev;
  39         struct resource *res;
  40         dev = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_K8T890CE_5, 0);
  41         if (!dev)
  42                 return current;
  43
  44         res = find_resource(dev, K8T890_MMCONFIG_MBAR);
  45         if (res) {
  46                 current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)
  47                                 current, res->base, 0x0, 0x0, 0xff);
  48         }
  49         return current;
  50 }
  51
  52 unsigned long acpi_fill_madt(unsigned long current)
  53 {
  54         unsigned int gsi_base = 0x18;
  55
  56         /* create all subtables for processors */
  57         current = acpi_create_madt_lapics(current);
  58
  59         /* Write SB IOAPIC */
  60         current +=
  61             acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, VT8237R_APIC_ID,
  62                                     VT8237R_APIC_BASE, 0);
  63
  64         /* Write NB IOAPIC */
  65         current +=
  66             acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, K8T890_APIC_ID,
  67                                     K8T890_APIC_BASE, gsi_base);
  68         /* IRQ9 ACPI active low */
  69         current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
  70                                                 current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW);
  71
  72         /* IRQ0 -> APIC IRQ2 */
  73         current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
  74                                                 current, 0, 0, 2, 0x0);
  75
  76         /* create all subtables for processors */
  77         current =
  78             acpi_create_madt_lapic_nmis(current,
  79                                         MP_IRQ_TRIGGER_EDGE |
  80                                         MP_IRQ_POLARITY_HIGH, 1);
  81
  82         return current;
  83 }
  84
  85
  86 unsigned long write_acpi_tables(unsigned long start)
  87 {
  88         unsigned long current;
  89         acpi_rsdp_t *rsdp;
  90         acpi_srat_t *srat;
  91         acpi_rsdt_t *rsdt;
  92         acpi_mcfg_t *mcfg;
  93         acpi_hpet_t *hpet;
  94         acpi_madt_t *madt;
  95         acpi_fadt_t *fadt;
  96         acpi_facs_t *facs;
  97         acpi_header_t *dsdt;
  98
  99         /* Align ACPI tables to 16byte */
 100         start = (start + 0x0f) & -0x10;
 101         current = start;
 102
 103         printk_info("ACPI: Writing ACPI tables at %lx...\n", start);
 104
 105         /* We need at least an RSDP and an RSDT Table */
 106         rsdp = (acpi_rsdp_t *) current;
 107         current += sizeof(acpi_rsdp_t);
 108         rsdt = (acpi_rsdt_t *) current;
 109         current += sizeof(acpi_rsdt_t);
 110
 111         /* clear all table memory */
 112         memset((void *) start, 0, current - start);
 113
 114         acpi_write_rsdp(rsdp, rsdt);
 115         acpi_write_rsdt(rsdt);
 116
 117         /*
 118          * We explicitly add these tables later on:
 119          */
 120         printk_debug("ACPI:     * FACS\n");
 121         facs = (acpi_facs_t *) current;
 122         current += sizeof(acpi_facs_t);
 123         acpi_create_facs(facs);
 124
 125         dsdt = (acpi_header_t *) current;
 126         current += ((acpi_header_t *) AmlCode)->length;
 127         memcpy((void *) dsdt, (void *) AmlCode,
 128                ((acpi_header_t *) AmlCode)->length);
 129         dsdt->checksum = 0;     // don't trust intel iasl compiler to get this right
 130         dsdt->checksum = acpi_checksum(dsdt, dsdt->length);
 131         printk_debug("ACPI:     * DSDT @ %08x Length %x\n", dsdt,
 132                      dsdt->length);
 133         printk_debug("ACPI:     * FADT\n");
 134
 135         fadt = (acpi_fadt_t *) current;
 136         current += sizeof(acpi_fadt_t);
 137
 138         acpi_create_fadt(fadt, facs, dsdt);
 139         acpi_add_table(rsdt, fadt);
 140
 141         printk_debug("ACPI:    * HPET\n");
 142         hpet = (acpi_hpet_t *) current;
 143         current += sizeof(acpi_hpet_t);
 144         acpi_create_hpet(hpet);
 145         acpi_add_table(rsdt, hpet);
 146
 147         /* If we want to use HPET Timers Linux wants an MADT */
 148         printk_debug("ACPI:    * MADT\n");
 149         madt = (acpi_madt_t *) current;
 150         acpi_create_madt(madt);
 151         current += madt->header.length;
 152         acpi_add_table(rsdt, madt);
 153
 154         printk_debug("ACPI:    * MCFG\n");
 155         mcfg = (acpi_mcfg_t *) current;
 156         acpi_create_mcfg(mcfg);
 157         current += mcfg->header.length;
 158         acpi_add_table(rsdt, mcfg);
 159
 160         /* SRAT */
 161         printk_debug("ACPI:    * SRAT\n");
 162         srat = (acpi_srat_t *) current;
 163         acpi_create_srat(srat);
 164         current += srat->header.length;
 165         acpi_add_table(rsdt, srat);
 166
 167         printk_info("ACPI: done.\n");
 168         return current;
 169 }