| /* |
| * This file is part of the coreboot project. |
| * |
| * Written by Stefan Reinauer <stepan@openbios.org>. |
| * ACPI FADT, FACS, and DSDT table support added by |
| * |
| * Copyright (C) 2004 Stefan Reinauer <stepan@openbios.org> |
| * Copyright (C) 2005 Nick Barker <nick.barker9@btinternet.com> |
| * Copyright (C) 2007 Rudolf Marek <r.marek@assembler.cz> |
| * |
| * 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 <console/console.h> |
| #include <string.h> |
| #include <arch/acpi.h> |
| #include <arch/smp/mpspec.h> |
| #include <arch/ioapic.h> |
| #include <device/device.h> |
| #include <device/pci_ids.h> |
| #include "southbridge/via/vt8237r/vt8237r.h" |
| #include "southbridge/via/k8t890/k8t890.h" |
| |
| extern const unsigned char AmlCode[]; |
| |
| unsigned long acpi_fill_mcfg(unsigned long current) |
| { |
| device_t dev; |
| struct resource *res; |
| |
| dev = dev_find_device(PCI_VENDOR_ID_VIA, PCI_DEVICE_ID_VIA_K8T890CE_5, 0); |
| if (!dev) |
| return current; |
| |
| res = find_resource(dev, K8T890_MMCONFIG_MBAR); |
| if (res) { |
| current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *) |
| current, res->base, 0x0, 0x0, 0xff); |
| } |
| return current; |
| } |
| |
| unsigned long acpi_fill_madt(unsigned long current) |
| { |
| unsigned int gsi_base = 0x18; |
| |
| /* Create all subtables for processors. */ |
| current = acpi_create_madt_lapics(current); |
| |
| /* Write SB IOAPIC. */ |
| current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, |
| VT8237R_APIC_ID, IO_APIC_ADDR, 0); |
| |
| /* Write NB IOAPIC. */ |
| current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, |
| K8T890_APIC_ID, K8T890_APIC_BASE, gsi_base); |
| |
| /* IRQ9 ACPI active low. */ |
| current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) |
| current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_LOW); |
| |
| /* IRQ0 -> APIC IRQ2. */ |
| current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) |
| current, 0, 0, 2, 0x0); |
| |
| /* Create all subtables for processors. */ |
| current = acpi_create_madt_lapic_nmis(current, |
| MP_IRQ_TRIGGER_EDGE | MP_IRQ_POLARITY_HIGH, 1); |
| |
| return current; |
| } |
| |
| unsigned long write_acpi_tables(unsigned long start) |
| { |
| unsigned long current; |
| acpi_rsdp_t *rsdp; |
| acpi_srat_t *srat; |
| acpi_rsdt_t *rsdt; |
| acpi_madt_t *madt; |
| acpi_mcfg_t *mcfg; |
| acpi_fadt_t *fadt; |
| acpi_facs_t *facs; |
| acpi_header_t *dsdt; |
| |
| /* Align ACPI tables to 16 byte. */ |
| start = ALIGN(start, 16); |
| current = start; |
| |
| 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); |
| rsdt = (acpi_rsdt_t *) current; |
| current += sizeof(acpi_rsdt_t); |
| |
| /* Clear all table memory. */ |
| memset((void *) start, 0, current - start); |
| |
| acpi_write_rsdp(rsdp, rsdt, NULL); |
| acpi_write_rsdt(rsdt); |
| |
| /* We explicitly add these tables later on: */ |
| printk(BIOS_DEBUG, "ACPI: * FACS\n"); |
| facs = (acpi_facs_t *) current; |
| current += sizeof(acpi_facs_t); |
| acpi_create_facs(facs); |
| |
| dsdt = (acpi_header_t *)current; |
| memcpy(dsdt, &AmlCode, sizeof(acpi_header_t)); |
| current += dsdt->length; |
| memcpy(dsdt, &AmlCode, dsdt->length); |
| dsdt->checksum = 0; /* Don't trust iasl to get this right. */ |
| dsdt->checksum = acpi_checksum((u8*)dsdt, dsdt->length); |
| printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt, |
| dsdt->length); |
| printk(BIOS_DEBUG, "ACPI: * FADT\n"); |
| |
| fadt = (acpi_fadt_t *) current; |
| current += sizeof(acpi_fadt_t); |
| |
| acpi_create_fadt(fadt, facs, dsdt); |
| acpi_add_table(rsdp, fadt); |
| |
| /* If we want to use HPET timers Linux wants it in MADT. */ |
| printk(BIOS_DEBUG, "ACPI: * MADT\n"); |
| madt = (acpi_madt_t *) current; |
| acpi_create_madt(madt); |
| current += madt->header.length; |
| acpi_add_table(rsdp, madt); |
| printk(BIOS_DEBUG, "ACPI: * MCFG\n"); |
| mcfg = (acpi_mcfg_t *) current; |
| acpi_create_mcfg(mcfg); |
| current += mcfg->header.length; |
| acpi_add_table(rsdp, mcfg); |
| |
| printk(BIOS_DEBUG, "ACPI: * SRAT\n"); |
| srat = (acpi_srat_t *) current; |
| acpi_create_srat(srat); |
| current += srat->header.length; |
| acpi_add_table(rsdp, srat); |
| |
| printk(BIOS_INFO, "ACPI: done.\n"); |
| return current; |
| } |