| /* |
| * coreboot ACPI Table support |
| * written by Stefan Reinauer <stepan@openbios.org> |
| * ACPI FADT, FACS, and DSDT table support added by |
| * Nick Barker <nick.barker9@btinternet.com>, and those portions |
| * (C) Copyright 2004 Nick Barker |
| * (C) Copyright 2005 Stefan Reinauer |
| * (C) Copyright 2009 Jon Harrison <bothlyn@blueyonder.co.uk> |
| * |
| * 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 |
| */ |
| |
| |
| /* |
| * Most parts of this file copied from via\epia-m\acpi_tables.c, |
| * and via\epia-m700\acpi_tables.c |
| */ |
| |
| #include <console/console.h> |
| #include <string.h> |
| #include <arch/acpi.h> |
| #include <arch/ioapic.h> |
| #include <device/device.h> |
| #include <device/pci.h> |
| #include <device/pci_ids.h> |
| #include "southbridge/via/vt8237r/vt8237r.h" |
| |
| /* |
| * These 8 macros are copied from <arch/smp/mpspec.h>, I have to do this |
| * since the "CONFIG_GENERATE_MP_TABLE = 0", and also since |
| * mainboard/via/... have no mptable.c (so that I can not set |
| * "CONFIG_GENERATE_MP_TABLE = 1" as many other mainboards. |
| * So I have to copy these four to here. acpi_fill_madt() needs this. |
| */ |
| #define MP_IRQ_POLARITY_DEFAULT 0x0 |
| #define MP_IRQ_POLARITY_HIGH 0x1 |
| #define MP_IRQ_POLARITY_LOW 0x3 |
| #define MP_IRQ_POLARITY_MASK 0x3 |
| #define MP_IRQ_TRIGGER_DEFAULT 0x0 |
| #define MP_IRQ_TRIGGER_EDGE 0x4 |
| #define MP_IRQ_TRIGGER_LEVEL 0xc |
| #define MP_IRQ_TRIGGER_MASK 0xc |
| |
| unsigned long acpi_fill_mcfg(unsigned long current) |
| { |
| /* Nothing to do */ |
| return current; |
| } |
| |
| unsigned long acpi_fill_slit(unsigned long current) |
| { |
| // Not implemented |
| return current; |
| } |
| |
| unsigned long acpi_create_madt_lapic_nmis(unsigned long current, u16 flags, |
| u8 lint) |
| { |
| device_t cpu; |
| int cpu_index = 0; |
| |
| for (cpu = all_devices; cpu; cpu = cpu->next) { |
| if ((cpu->path.type != DEVICE_PATH_APIC) || |
| (cpu->bus->dev->path.type != DEVICE_PATH_CPU_CLUSTER)) { |
| continue; |
| } |
| if (!cpu->enabled) |
| continue; |
| current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *) |
| current, cpu_index, flags, lint); |
| cpu_index++; |
| } |
| return current; |
| } |
| |
| unsigned long acpi_fill_madt(unsigned long current) |
| { |
| unsigned int gsi_base = 0x00; |
| |
| /* 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, gsi_base); |
| |
| /* IRQ0 -> APIC IRQ2. */ |
| current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) |
| current, 0, 0, 2, 0x0); |
| |
| /* 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); |
| |
| /* 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 acpi_fill_srat(unsigned long current) |
| { |
| /* No NUMA, no SRAT */ |
| return current; |
| } |