Thomas Jourdan | 1a692d8 | 2009-07-01 17:01:17 +0000 | [diff] [blame^] | 1 | /* |
| 2 | * This file is part of the coreboot project. |
| 3 | * |
| 4 | * Copyright (C) 2007-2008 coresystems GmbH |
| 5 | * Copyright (C) 2009 Thomas Jourdan <thomas.jourdan@gmail.com> |
| 6 | * |
| 7 | * This program is free software; you can redistribute it and/or |
| 8 | * modify it under the terms of the GNU General Public License as |
| 9 | * published by the Free Software Foundation; version 2 of |
| 10 | * the License. |
| 11 | * |
| 12 | * This program is distributed in the hope that it will be useful, |
| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 15 | * GNU General Public License for more details. |
| 16 | * |
| 17 | * You should have received a copy of the GNU General Public License |
| 18 | * along with this program; if not, write to the Free Software |
| 19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
| 20 | * MA 02110-1301 USA |
| 21 | */ |
| 22 | |
| 23 | #include <string.h> |
| 24 | #include <console/console.h> |
| 25 | #include <arch/acpi.h> |
| 26 | #include <device/device.h> |
| 27 | #include <device/pci.h> |
| 28 | #include <device/pci_ids.h> |
| 29 | #include "ioapic.h" |
| 30 | |
| 31 | extern unsigned char AmlCode[]; |
| 32 | |
| 33 | unsigned long acpi_fill_mcfg(unsigned long current) |
| 34 | { |
| 35 | device_t dev; |
| 36 | u64 mmcfg; |
| 37 | |
| 38 | dev = dev_find_device(0x8086, 0x35B0, 0); // 0:0x13.0 |
| 39 | if (!dev) |
| 40 | return current; |
| 41 | |
| 42 | // MMCFG not supported or not enabled. |
| 43 | mmcfg = ((u64) pci_read_config16(dev, 0xce)) << 16; |
| 44 | if (!mmcfg) |
| 45 | return current; |
| 46 | |
| 47 | current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) current, |
| 48 | mmcfg, 0x0, 0x0, 0xff); |
| 49 | |
| 50 | return current; |
| 51 | } |
| 52 | |
| 53 | void acpi_create_intel_hpet(acpi_hpet_t * hpet) |
| 54 | { |
| 55 | #define HPET_ADDR 0xfed00000ULL |
| 56 | acpi_header_t *header = &(hpet->header); |
| 57 | acpi_addr_t *addr = &(hpet->addr); |
| 58 | |
| 59 | memset((void *) hpet, 0, sizeof(acpi_hpet_t)); |
| 60 | |
| 61 | /* fill out header fields */ |
| 62 | memcpy(header->signature, HPET_NAME, 4); |
| 63 | memcpy(header->oem_id, OEM_ID, 6); |
| 64 | memcpy(header->oem_table_id, "IC ", 8); |
| 65 | memcpy(header->asl_compiler_id, ASLC, 4); |
| 66 | |
| 67 | header->length = sizeof(acpi_hpet_t); |
| 68 | header->revision = 1; |
| 69 | |
| 70 | /* fill out HPET address */ |
| 71 | // XXX factory bios just puts an address here -- who's right? |
| 72 | addr->space_id = 0; /* Memory */ |
| 73 | addr->bit_width = 64; |
| 74 | addr->bit_offset = 0; |
| 75 | addr->addrl = HPET_ADDR & 0xffffffff; |
| 76 | addr->addrh = HPET_ADDR >> 32; |
| 77 | |
| 78 | hpet->id = 0x80861234; |
| 79 | hpet->number = 0x00; |
| 80 | hpet->min_tick = 0x0090; |
| 81 | |
| 82 | header->checksum = acpi_checksum((void *) hpet, sizeof(acpi_hpet_t)); |
| 83 | } |
| 84 | |
| 85 | #define IO_APIC0 2 |
| 86 | #define IO_APIC1 3 |
| 87 | #define IO_APIC0_ADDR 0xfec00000UL |
| 88 | #define IO_APIC1_ADDR 0xfec10000UL |
| 89 | |
| 90 | unsigned long acpi_fill_madt(unsigned long current) |
| 91 | { |
| 92 | unsigned int irq_start = 0; |
| 93 | device_t dev = 0; |
| 94 | struct resource* res = NULL; |
| 95 | unsigned char bus_isa; |
| 96 | |
| 97 | /* Local Apic */ |
| 98 | current += acpi_create_madt_lapic((acpi_madt_lapic_t *) current, 1, 0); |
| 99 | // This one is for the second core... Will it hurt? |
| 100 | current += acpi_create_madt_lapic((acpi_madt_lapic_t *) current, 2, 1); |
| 101 | |
| 102 | /* IOAPIC */ |
| 103 | current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, IO_APIC0, IO_APIC0_ADDR, irq_start); |
| 104 | irq_start += INTEL_IOAPIC_NUM_INTERRUPTS; |
| 105 | current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, IO_APIC1, IO_APIC1_ADDR, irq_start); |
| 106 | irq_start += INTEL_IOAPIC_NUM_INTERRUPTS; |
| 107 | |
| 108 | dev = dev_find_slot(0, PCI_DEVFN(0x1e,0)); |
| 109 | |
| 110 | if (dev) { |
| 111 | bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS); |
| 112 | bus_isa++; |
| 113 | } else { |
| 114 | printk_debug("ERROR - could not find PCI 0:1e.0, using defaults\n"); |
| 115 | bus_isa = 7; |
| 116 | } |
| 117 | |
| 118 | /* Map ISA IRQ 0 to IRQ 2 */ |
| 119 | current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current, bus_isa, 0, 2, 0); |
| 120 | |
| 121 | /* IRQ9 differs from ISA standard - ours is active high, level-triggered */ |
| 122 | current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current, 0, 9, 9, 0x000d); |
| 123 | |
| 124 | return current; |
| 125 | } |
| 126 | |
| 127 | unsigned long acpi_fill_slit(unsigned long current) |
| 128 | { |
| 129 | // Not implemented |
| 130 | return current; |
| 131 | } |
| 132 | |
| 133 | unsigned long acpi_fill_srat(unsigned long current) |
| 134 | { |
| 135 | /* No NUMA, no SRAT */ |
| 136 | return current; |
| 137 | } |
| 138 | |
| 139 | |
| 140 | #define ALIGN_CURRENT current = ((current + 0x0f) & -0x10) |
| 141 | unsigned long write_acpi_tables(unsigned long start) |
| 142 | { |
| 143 | unsigned long current; |
| 144 | int i; |
| 145 | acpi_rsdp_t *rsdp; |
| 146 | acpi_rsdt_t *rsdt; |
| 147 | acpi_hpet_t *hpet; |
| 148 | acpi_madt_t *madt; |
| 149 | acpi_mcfg_t *mcfg; |
| 150 | acpi_fadt_t *fadt; |
| 151 | acpi_facs_t *facs; |
| 152 | acpi_header_t *dsdt; |
| 153 | |
| 154 | current = start; |
| 155 | |
| 156 | /* Align ACPI tables to 16byte */ |
| 157 | ALIGN_CURRENT; |
| 158 | |
| 159 | printk_info("ACPI: Writing ACPI tables at %lx.\n", current); |
| 160 | |
| 161 | /* We need at least an RSDP and an RSDT Table */ |
| 162 | rsdp = (acpi_rsdp_t *) current; |
| 163 | current += sizeof(acpi_rsdp_t); |
| 164 | ALIGN_CURRENT; |
| 165 | rsdt = (acpi_rsdt_t *) current; |
| 166 | current += sizeof(acpi_rsdt_t); |
| 167 | ALIGN_CURRENT; |
| 168 | |
| 169 | /* clear all table memory */ |
| 170 | memset((void *) start, 0, current - start); |
| 171 | |
| 172 | acpi_write_rsdp(rsdp, rsdt); |
| 173 | acpi_write_rsdt(rsdt); |
| 174 | |
| 175 | /* |
| 176 | * We explicitly add these tables later on: |
| 177 | */ |
| 178 | printk_debug("ACPI: * HPET\n"); |
| 179 | |
| 180 | hpet = (acpi_hpet_t *) current; |
| 181 | current += sizeof(acpi_hpet_t); |
| 182 | ALIGN_CURRENT; |
| 183 | acpi_create_intel_hpet(hpet); |
| 184 | acpi_add_table(rsdt, hpet); |
| 185 | |
| 186 | /* If we want to use HPET Timers Linux wants an MADT */ |
| 187 | printk_debug("ACPI: * MADT\n"); |
| 188 | |
| 189 | madt = (acpi_madt_t *) current; |
| 190 | acpi_create_madt(madt); |
| 191 | current += madt->header.length; |
| 192 | ALIGN_CURRENT; |
| 193 | acpi_add_table(rsdt, madt); |
| 194 | |
| 195 | printk_debug("ACPI: * MCFG\n"); |
| 196 | mcfg = (acpi_mcfg_t *) current; |
| 197 | acpi_create_mcfg(mcfg); |
| 198 | current += mcfg->header.length; |
| 199 | ALIGN_CURRENT; |
| 200 | acpi_add_table(rsdt, mcfg); |
| 201 | |
| 202 | printk_debug("ACPI: * FACS\n"); |
| 203 | facs = (acpi_facs_t *) current; |
| 204 | current += sizeof(acpi_facs_t); |
| 205 | ALIGN_CURRENT; |
| 206 | acpi_create_facs(facs); |
| 207 | |
| 208 | dsdt = (acpi_header_t *) current; |
| 209 | current += ((acpi_header_t *) AmlCode)->length; |
| 210 | ALIGN_CURRENT; |
| 211 | memcpy((void *) dsdt, (void *) AmlCode, |
| 212 | ((acpi_header_t *) AmlCode)->length); |
| 213 | |
| 214 | printk_debug("ACPI: * DSDT @ %p Length %x\n", dsdt, |
| 215 | dsdt->length); |
| 216 | |
| 217 | printk_debug("ACPI: * FADT\n"); |
| 218 | fadt = (acpi_fadt_t *) current; |
| 219 | current += sizeof(acpi_fadt_t); |
| 220 | ALIGN_CURRENT; |
| 221 | |
| 222 | acpi_create_fadt(fadt, facs, dsdt); |
| 223 | acpi_add_table(rsdt, fadt); |
| 224 | |
| 225 | printk_info("ACPI: done.\n"); |
| 226 | return current; |
| 227 | } |