| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2007-2009 coresystems GmbH |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License as |
| * published by the Free Software Foundation; version 2 of |
| * the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, |
| * MA 02110-1301 USA |
| */ |
| |
| #include <string.h> |
| #include <console/console.h> |
| #include <arch/io.h> |
| #include <arch/ioapic.h> |
| #include <arch/acpi.h> |
| #include <arch/acpigen.h> |
| #include <arch/smp/mpspec.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| |
| extern const unsigned char AmlCode[]; |
| #if CONFIG_HAVE_ACPI_SLIC |
| unsigned long acpi_create_slic(unsigned long current); |
| #endif |
| |
| #include "southbridge/intel/i82801ix/nvs.h" |
| static void acpi_create_gnvs(global_nvs_t *gnvs) |
| { |
| memset((void *)gnvs, 0, sizeof(*gnvs)); |
| gnvs->apic = 1; |
| gnvs->mpen = 1; /* Enable Multi Processing */ |
| |
| /* Enable both COM ports */ |
| gnvs->cmap = 0x01; |
| gnvs->cmbp = 0x01; |
| |
| /* IGD Displays */ |
| gnvs->ndid = 0; /* Will use default of 0x00000400. */ |
| gnvs->did[0] = 0x80000100; |
| gnvs->did[1] = 0x80000240; |
| gnvs->did[2] = 0x80000410; |
| gnvs->did[3] = 0x80000410; |
| gnvs->did[4] = 0x00000005; |
| } |
| |
| static void acpi_create_intel_hpet(acpi_hpet_t * hpet) |
| { |
| #define HPET_ADDR 0xfed00000ULL |
| acpi_header_t *header = &(hpet->header); |
| acpi_addr_t *addr = &(hpet->addr); |
| |
| memset((void *) hpet, 0, sizeof(acpi_hpet_t)); |
| |
| /* fill out header fields */ |
| memcpy(header->signature, "HPET", 4); |
| memcpy(header->oem_id, OEM_ID, 6); |
| memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8); |
| memcpy(header->asl_compiler_id, ASLC, 4); |
| |
| header->length = sizeof(acpi_hpet_t); |
| header->revision = 1; |
| |
| /* fill out HPET address */ |
| addr->space_id = 0; /* Memory */ |
| addr->bit_width = 64; |
| addr->bit_offset = 0; |
| addr->addrl = HPET_ADDR & 0xffffffff; |
| addr->addrh = HPET_ADDR >> 32; |
| |
| hpet->id = 0x8086a201; /* Intel */ |
| hpet->number = 0x00; |
| hpet->min_tick = 0x0080; |
| |
| header->checksum = |
| acpi_checksum((void *) hpet, sizeof(acpi_hpet_t)); |
| } |
| |
| unsigned long acpi_fill_madt(unsigned long current) |
| { |
| /* Local APICs */ |
| current = acpi_create_madt_lapics(current); |
| |
| /* IOAPIC */ |
| current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, |
| 2, IO_APIC_ADDR, 0); |
| |
| /* LAPIC_NMI */ |
| current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *) |
| current, 0, |
| MP_IRQ_POLARITY_HIGH | |
| MP_IRQ_TRIGGER_EDGE, 0x01); |
| current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *) |
| current, 1, MP_IRQ_POLARITY_HIGH | |
| MP_IRQ_TRIGGER_EDGE, 0x01); |
| |
| /* INT_SRC_OVR */ |
| current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) |
| current, 0, 0, 2, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_EDGE); |
| current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) |
| current, 0, 9, 9, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_LEVEL); |
| |
| |
| return current; |
| } |
| |
| unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id) |
| { |
| generate_cpu_entries(); |
| return (unsigned long) (acpigen_get_current()); |
| } |
| |
| unsigned long acpi_fill_slit(unsigned long current) |
| { |
| // Not implemented |
| return current; |
| } |
| |
| unsigned long acpi_fill_srat(unsigned long current) |
| { |
| /* No NUMA, no SRAT */ |
| return current; |
| } |
| |
| void smm_setup_structures(void *gnvs, void *tcg, void *smi1); |
| |
| #define ALIGN_CURRENT current = (ALIGN(current, 16)) |
| unsigned long write_acpi_tables(unsigned long start) |
| { |
| unsigned long current; |
| int i; |
| acpi_rsdp_t *rsdp; |
| acpi_rsdt_t *rsdt; |
| acpi_xsdt_t *xsdt; |
| acpi_hpet_t *hpet; |
| acpi_madt_t *madt; |
| acpi_mcfg_t *mcfg; |
| acpi_fadt_t *fadt; |
| acpi_facs_t *facs; |
| #if CONFIG_IOMMU |
| acpi_dmar_t *dmar; |
| #endif |
| #if CONFIG_HAVE_ACPI_SLIC |
| acpi_header_t *slic; |
| #endif |
| acpi_header_t *ssdt; |
| acpi_header_t *dsdt; |
| void *gnvs; |
| |
| current = start; |
| |
| /* Align ACPI tables to 16byte */ |
| ALIGN_CURRENT; |
| |
| printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx.\n", start); |
| |
| /* We need at least an RSDP and an RSDT Table */ |
| rsdp = (acpi_rsdp_t *) current; |
| current += sizeof(acpi_rsdp_t); |
| ALIGN_CURRENT; |
| rsdt = (acpi_rsdt_t *) current; |
| current += sizeof(acpi_rsdt_t); |
| ALIGN_CURRENT; |
| xsdt = (acpi_xsdt_t *) current; |
| current += sizeof(acpi_xsdt_t); |
| ALIGN_CURRENT; |
| |
| /* clear all table memory */ |
| memset((void *) start, 0, current - start); |
| |
| acpi_write_rsdp(rsdp, rsdt, xsdt); |
| acpi_write_rsdt(rsdt); |
| acpi_write_xsdt(xsdt); |
| |
| /* |
| * We explicitly add these tables later on: |
| */ |
| printk(BIOS_DEBUG, "ACPI: * HPET\n"); |
| |
| hpet = (acpi_hpet_t *) current; |
| current += sizeof(acpi_hpet_t); |
| ALIGN_CURRENT; |
| acpi_create_intel_hpet(hpet); |
| acpi_add_table(rsdp, hpet); |
| |
| /* If we want to use HPET Timers Linux wants an MADT */ |
| printk(BIOS_DEBUG, "ACPI: * MADT\n"); |
| |
| madt = (acpi_madt_t *) current; |
| acpi_create_madt(madt); |
| current += madt->header.length; |
| ALIGN_CURRENT; |
| acpi_add_table(rsdp, madt); |
| |
| printk(BIOS_DEBUG, "ACPI: * MCFG\n"); |
| mcfg = (acpi_mcfg_t *) current; |
| acpi_create_mcfg(mcfg); |
| current += mcfg->header.length; |
| ALIGN_CURRENT; |
| acpi_add_table(rsdp, mcfg); |
| |
| #if CONFIG_IOMMU |
| printk(BIOS_DEBUG, "ACPI: * DMAR\n"); |
| dmar = (acpi_dmar_t *) current; |
| acpi_create_dmar(dmar); |
| current += dmar->header.length; |
| ALIGN_CURRENT; |
| acpi_add_table(rsdp, dmar); |
| #endif |
| |
| printk(BIOS_DEBUG, "ACPI: * FACS\n"); |
| facs = (acpi_facs_t *) current; |
| current += sizeof(acpi_facs_t); |
| ALIGN_CURRENT; |
| acpi_create_facs(facs); |
| |
| dsdt = (acpi_header_t *) current; |
| memcpy(dsdt, &AmlCode, sizeof(acpi_header_t)); |
| current += dsdt->length; |
| memcpy(dsdt, &AmlCode, dsdt->length); |
| |
| /* Fix up global NVS region for SMI handler. The GNVS region lives |
| * in the (high) table area. The low memory map looks like this: |
| * |
| * 0x00000000 - 0x000003ff Real Mode IVT |
| * 0x00000020 - 0x0000019c Low MP Table (XXX conflict?) |
| * 0x00000400 - 0x000004ff BDA (somewhat unused) |
| * 0x00000500 - 0x0000052f Moved GDT |
| * 0x00000530 - 0x00000b64 coreboot table |
| * 0x0007c000 - 0x0007dfff OS boot sector (unused?) |
| * 0x0007e000 - 0x0007ffff free to use (so no good for acpi+smi) |
| * 0x00080000 - 0x0009fbff usable ram |
| * 0x0009fc00 - 0x0009ffff EBDA (unused?) |
| * 0x000a0000 - 0x000bffff VGA memory |
| * 0x000c0000 - 0x000cffff VGA option rom |
| * 0x000d0000 - 0x000dffff free for other option roms? |
| * 0x000e0000 - 0x000fffff SeaBIOS? (conflict with low tables:) |
| * 0x000f0000 - 0x000f03ff PIRQ table |
| * 0x000f0400 - 0x000f66?? ACPI tables |
| * 0x000f66?? - 0x000f???? DMI tables |
| */ |
| |
| ALIGN_CURRENT; |
| |
| /* Pack GNVS into the ACPI table area */ |
| for (i=0; i < dsdt->length; i++) { |
| if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBABE) { |
| printk(BIOS_DEBUG, "ACPI: Patching up global NVS in DSDT at offset 0x%04x -> 0x%08x\n", i, (u32)current); |
| *(u32*)(((u32)dsdt) + i) = current; // 0x92 bytes |
| break; |
| } |
| } |
| |
| /* And fill it */ |
| acpi_create_gnvs((global_nvs_t *)current); |
| |
| /* Keep pointer around */ |
| gnvs = (void *)current; |
| |
| current += 0x100; |
| ALIGN_CURRENT; |
| |
| #if CONFIG_HAVE_SMI_HANDLER |
| /* And tell SMI about it */ |
| smm_setup_structures(gnvs, NULL, NULL); |
| #endif |
| |
| /* We patched up the DSDT, so we need to recalculate the checksum */ |
| dsdt->checksum = 0; |
| dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length); |
| |
| printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt, |
| dsdt->length); |
| |
| #if CONFIG_HAVE_ACPI_SLIC |
| printk(BIOS_DEBUG, "ACPI: * SLIC\n"); |
| slic = (acpi_header_t *)current; |
| current += acpi_create_slic(current); |
| ALIGN_CURRENT; |
| acpi_add_table(rsdp, slic); |
| #endif |
| |
| printk(BIOS_DEBUG, "ACPI: * FADT\n"); |
| fadt = (acpi_fadt_t *) current; |
| current += sizeof(acpi_fadt_t); |
| ALIGN_CURRENT; |
| |
| acpi_create_fadt(fadt, facs, dsdt); |
| acpi_add_table(rsdp, fadt); |
| |
| printk(BIOS_DEBUG, "ACPI: * SSDT\n"); |
| ssdt = (acpi_header_t *)current; |
| acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR); |
| current += ssdt->length; |
| acpi_add_table(rsdp, ssdt); |
| ALIGN_CURRENT; |
| |
| printk(BIOS_DEBUG, "current = %lx\n", current); |
| printk(BIOS_INFO, "ACPI: done.\n"); |
| |
| return current; |
| } |