src/mainboard/roda/rk886ex/acpi_tables.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2007-2009 coresystems GmbH
   5  *
   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
   9  * the License.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
  19  * MA 02110-1301 USA
  20  */
  21
  22 #include <string.h>
  23 #include <console/console.h>
  24 #include <arch/io.h>
  25 #include <arch/ioapic.h>
  26 #include <arch/acpi.h>
  27 #include <arch/acpigen.h>
  28 #include <arch/smp/mpspec.h>
  29 #include <device/device.h>
  30 #include <device/pci.h>
  31 #include <device/pci_ids.h>
  32 #include "dmi.h"
  33
  34 extern const unsigned char AmlCode[];
  35 #if CONFIG_HAVE_ACPI_SLIC
  36 unsigned long acpi_create_slic(unsigned long current);
  37 #endif
  38
  39 #define OLD_ACPI 0
  40 #if OLD_ACPI
  41 static void acpi_create_gnvs(global_nvs_t *gnvs)
  42 {
  43         memset (gnvs, 0, sizeof(global_nvs_t));
  44
  45         gnvs->LIDS = 1;
  46         gnvs->PWRS = 1;
  47
  48         gnvs->ACTT = 0x37;
  49         gnvs->PSVT = 0x4f;
  50
  51         gnvs->TC1V = 0x00;
  52         gnvs->TC2V = 0x0a;
  53         gnvs->TSPV = 0x02;
  54
  55         gnvs->CRTT = 0x77;
  56
  57         gnvs->B0SC = 0x54;
  58         gnvs->APIC = 0x01;
  59         gnvs->MPEN = 0x01;
  60
  61         gnvs->PPCM = 0x02;
  62         gnvs->PCP0 = 0xbf;
  63         gnvs->PCP1 = 0xbf;
  64
  65         gnvs->CMAP = 0x01;
  66         gnvs->CMBP = 0x01;
  67         gnvs->LT0  = 0x01;
  68         gnvs->FDCP = 0x01;
  69         gnvs->CMCP = 0x01;
  70         gnvs->CMDP = 0x01;
  71         gnvs->P2M  = 0x02;
  72
  73         gnvs->IGDS = 0x01;
  74
  75         gnvs->CADL = 0x09;
  76         gnvs->PADL = 0x09;
  77
  78         gnvs->NDID = 3;
  79         gnvs->DID1 = 0x80000100;
  80         gnvs->DID2 = 0x80000240;
  81         gnvs->DID3 = 0x80000410;
  82         gnvs->DID4 = 0x80000410;
  83         gnvs->DID5 = 0x00000005;
  84
  85         gnvs->ALAF = 0x64;
  86         gnvs->LLOW = 0x2c;
  87         gnvs->LHIH = 0x01;
  88
  89         // tolud = pci_read_config32(dev_find_slot(0, PCI_DEVFN(2, 0)), 0x5c);
  90         // oemb->topm = tolud;
  91 }
  92 #endif
  93
  94 #include "southbridge/intel/i82801gx/i82801gx_nvs.h"
  95 static void acpi_create_gnvs(global_nvs_t *gnvs)
  96 {
  97         memset((void *)gnvs, 0, sizeof(*gnvs));
  98         gnvs->apic = 1;
  99         gnvs->mpen = 1; /* Enable Multi Processing */
 100
 101         /* Enable both COM ports */
 102         gnvs->cmap = 0x01;
 103         gnvs->cmbp = 0x01;
 104
 105         /* IGD Displays */
 106         gnvs->ndid = 3;
 107         gnvs->did[0] = 0x80000100;
 108         gnvs->did[1] = 0x80000240;
 109         gnvs->did[2] = 0x80000410;
 110         gnvs->did[3] = 0x80000410;
 111         gnvs->did[4] = 0x00000005;
 112 }
 113
 114 static void acpi_create_intel_hpet(acpi_hpet_t * hpet)
 115 {
 116 #define HPET_ADDR  0xfed00000ULL
 117         acpi_header_t *header = &(hpet->header);
 118         acpi_addr_t *addr = &(hpet->addr);
 119
 120         memset((void *) hpet, 0, sizeof(acpi_hpet_t));
 121
 122         /* fill out header fields */
 123         memcpy(header->signature, "HPET", 4);
 124         memcpy(header->oem_id, OEM_ID, 6);
 125         memcpy(header->oem_table_id, "COREBOOT", 8);
 126         memcpy(header->asl_compiler_id, ASLC, 4);
 127
 128         header->length = sizeof(acpi_hpet_t);
 129         header->revision = 1;
 130
 131         /* fill out HPET address */
 132         addr->space_id = 0;     /* Memory */
 133         addr->bit_width = 64;
 134         addr->bit_offset = 0;
 135         addr->addrl = HPET_ADDR & 0xffffffff;
 136         addr->addrh = HPET_ADDR >> 32;
 137
 138         hpet->id = 0x8086a201;  /* Intel */
 139         hpet->number = 0x00;
 140         hpet->min_tick = 0x0080;
 141
 142         header->checksum =
 143             acpi_checksum((void *) hpet, sizeof(acpi_hpet_t));
 144 }
 145
 146 unsigned long acpi_fill_madt(unsigned long current)
 147 {
 148         /* Local APICs */
 149         current = acpi_create_madt_lapics(current);
 150
 151         /* IOAPIC */
 152         current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current,
 153                                 2, IO_APIC_ADDR, 0);
 154
 155         /* LAPIC_NMI */
 156         current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)
 157                                 current, 0,
 158                                 MP_IRQ_POLARITY_HIGH |
 159                                 MP_IRQ_TRIGGER_EDGE, 0x01);
 160         current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)
 161                                 current, 1, MP_IRQ_POLARITY_HIGH |
 162                                 MP_IRQ_TRIGGER_EDGE, 0x01);
 163
 164         /* INT_SRC_OVR */
 165         current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
 166                  current, 0, 0, 2, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_EDGE);
 167         current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)
 168                  current, 0, 9, 9, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_LEVEL);
 169
 170
 171         return current;
 172 }
 173
 174 unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id)
 175 {
 176         generate_cpu_entries();
 177         return (unsigned long) (acpigen_get_current());
 178 }
 179
 180 unsigned long acpi_fill_slit(unsigned long current)
 181 {
 182         // Not implemented
 183         return current;
 184 }
 185
 186 unsigned long acpi_fill_srat(unsigned long current)
 187 {
 188         /* No NUMA, no SRAT */
 189         return current;
 190 }
 191
 192 void smm_setup_structures(void *gnvs, void *tcg, void *smi1);
 193
 194 #define ALIGN_CURRENT current = ((current + 0x0f) & -0x10)
 195 unsigned long write_acpi_tables(unsigned long start)
 196 {
 197         unsigned long current;
 198         int i;
 199         acpi_rsdp_t *rsdp;
 200         acpi_rsdt_t *rsdt;
 201         acpi_xsdt_t *xsdt;
 202         acpi_hpet_t *hpet;
 203         acpi_madt_t *madt;
 204         acpi_mcfg_t *mcfg;
 205         acpi_fadt_t *fadt;
 206         acpi_facs_t *facs;
 207 #if CONFIG_HAVE_ACPI_SLIC
 208         acpi_header_t *slic;
 209 #endif
 210         acpi_header_t *ssdt;
 211         acpi_header_t *dsdt;
 212         void *gnvs;
 213
 214         current = start;
 215
 216         /* Align ACPI tables to 16byte */
 217         ALIGN_CURRENT;
 218
 219         printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx.\n", start);
 220
 221         /* We need at least an RSDP and an RSDT Table */
 222         rsdp = (acpi_rsdp_t *) current;
 223         current += sizeof(acpi_rsdp_t);
 224         ALIGN_CURRENT;
 225         rsdt = (acpi_rsdt_t *) current;
 226         current += sizeof(acpi_rsdt_t);
 227         ALIGN_CURRENT;
 228         xsdt = (acpi_xsdt_t *) current;
 229         current += sizeof(acpi_xsdt_t);
 230         ALIGN_CURRENT;
 231
 232         /* clear all table memory */
 233         memset((void *) start, 0, current - start);
 234
 235         acpi_write_rsdp(rsdp, rsdt, xsdt);
 236         acpi_write_rsdt(rsdt);
 237         acpi_write_xsdt(xsdt);
 238
 239         /*
 240          * We explicitly add these tables later on:
 241          */
 242         printk(BIOS_DEBUG, "ACPI:    * HPET\n");
 243
 244         hpet = (acpi_hpet_t *) current;
 245         current += sizeof(acpi_hpet_t);
 246         ALIGN_CURRENT;
 247         acpi_create_intel_hpet(hpet);
 248         acpi_add_table(rsdp, hpet);
 249
 250         /* If we want to use HPET Timers Linux wants an MADT */
 251         printk(BIOS_DEBUG, "ACPI:    * MADT\n");
 252
 253         madt = (acpi_madt_t *) current;
 254         acpi_create_madt(madt);
 255         current += madt->header.length;
 256         ALIGN_CURRENT;
 257         acpi_add_table(rsdp, madt);
 258
 259         printk(BIOS_DEBUG, "ACPI:    * MCFG\n");
 260         mcfg = (acpi_mcfg_t *) current;
 261         acpi_create_mcfg(mcfg);
 262         current += mcfg->header.length;
 263         ALIGN_CURRENT;
 264         acpi_add_table(rsdp, mcfg);
 265
 266         printk(BIOS_DEBUG, "ACPI:     * FACS\n");
 267         facs = (acpi_facs_t *) current;
 268         current += sizeof(acpi_facs_t);
 269         ALIGN_CURRENT;
 270         acpi_create_facs(facs);
 271
 272         dsdt = (acpi_header_t *) current;
 273         memcpy(dsdt, &AmlCode, sizeof(acpi_header_t));
 274         current += dsdt->length;
 275         memcpy(dsdt, &AmlCode, dsdt->length);
 276
 277         /* Fix up global NVS region for SMI handler. The GNVS region lives
 278          * in the (high) table area. The low memory map looks like this:
 279          *
 280          * 0x00000000 - 0x000003ff      Real Mode IVT
 281          * 0x00000020 - 0x0000019c      Low MP Table (XXX conflict?)
 282          * 0x00000400 - 0x000004ff      BDA (somewhat unused)
 283          * 0x00000500 - 0x0000052f      Moved GDT
 284          * 0x00000530 - 0x00000b64      coreboot table
 285          * 0x0007c000 - 0x0007dfff      OS boot sector (unused?)
 286          * 0x0007e000 - 0x0007ffff      free to use (so no good for acpi+smi)
 287          * 0x00080000 - 0x0009fbff      usable ram
 288          * 0x0009fc00 - 0x0009ffff      EBDA (unused?)
 289          * 0x000a0000 - 0x000bffff      VGA memory
 290          * 0x000c0000 - 0x000cffff      VGA option rom
 291          * 0x000d0000 - 0x000dffff      free for other option roms?
 292          * 0x000e0000 - 0x000fffff      SeaBIOS? (conflict with low tables:)
 293          * 0x000f0000 - 0x000f03ff      PIRQ table
 294          * 0x000f0400 - 0x000f66??      ACPI tables
 295          * 0x000f66?? - 0x000f????      DMI tables
 296          */
 297
 298         ALIGN_CURRENT;
 299
 300         /* Pack GNVS into the ACPI table area */
 301         for (i=0; i < dsdt->length; i++) {
 302                 if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBABE) {
 303                         printk(BIOS_DEBUG, "ACPI: Patching up global NVS in DSDT at offset 0x%04x -> 0x%08x\n", i, (u32)current);
 304                         *(u32*)(((u32)dsdt) + i) = current; // 0x92 bytes
 305                         break;
 306                 }
 307         }
 308
 309         /* And fill it */
 310         acpi_create_gnvs((global_nvs_t *)current);
 311
 312         /* Keep pointer around */
 313         gnvs = (void *)current;
 314
 315         current += 0x100;
 316         ALIGN_CURRENT;
 317
 318         /* And tell SMI about it */
 319         smm_setup_structures(gnvs, NULL, NULL);
 320
 321         /* We patched up the DSDT, so we need to recalculate the checksum */
 322         dsdt->checksum = 0;
 323         dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length);
 324
 325         printk(BIOS_DEBUG, "ACPI:     * DSDT @ %p Length %x\n", dsdt,
 326                      dsdt->length);
 327
 328 #if CONFIG_HAVE_ACPI_SLIC
 329         printk(BIOS_DEBUG, "ACPI:     * SLIC\n");
 330         slic = (acpi_header_t *)current;
 331         current += acpi_create_slic(current);
 332         ALIGN_CURRENT;
 333         acpi_add_table(rsdp, slic);
 334 #endif
 335
 336         printk(BIOS_DEBUG, "ACPI:     * FADT\n");
 337         fadt = (acpi_fadt_t *) current;
 338         current += sizeof(acpi_fadt_t);
 339         ALIGN_CURRENT;
 340
 341         acpi_create_fadt(fadt, facs, dsdt);
 342         acpi_add_table(rsdp, fadt);
 343
 344         printk(BIOS_DEBUG, "ACPI:     * SSDT\n");
 345         ssdt = (acpi_header_t *)current;
 346         acpi_create_ssdt_generator(ssdt, "COREBOOT");
 347         current += ssdt->length;
 348         acpi_add_table(rsdp, ssdt);
 349         ALIGN_CURRENT;
 350
 351         printk(BIOS_DEBUG, "current = %lx\n", current);
 352
 353         printk(BIOS_DEBUG, "ACPI:     * DMI (Linux workaround)\n");
 354         memcpy((void *)0xfff80, dmi_table, DMI_TABLE_SIZE);
 355 #if CONFIG_WRITE_HIGH_TABLES == 1
 356         memcpy((void *)current, dmi_table, DMI_TABLE_SIZE);
 357         current += DMI_TABLE_SIZE;
 358         ALIGN_CURRENT;
 359 #endif
 360
 361         printk(BIOS_INFO, "ACPI: done.\n");
 362
 363         /* Enable Dummy DCC ON# for DVI */
 364         printk(BIOS_DEBUG, "Laptop handling...\n");
 365         outb(inb(0x60f) & ~(1 << 5), 0x60f);
 366
 367         return current;
 368 }