diff options
Diffstat (limited to 'src/mainboard/via/epia-n/acpi_tables.c')
| -rw-r--r-- | src/mainboard/via/epia-n/acpi_tables.c | 97 |
1 files changed, 95 insertions, 2 deletions
diff --git a/src/mainboard/via/epia-n/acpi_tables.c b/src/mainboard/via/epia-n/acpi_tables.c index 3f58d66824..57e648f3eb 100644 --- a/src/mainboard/via/epia-n/acpi_tables.c +++ b/src/mainboard/via/epia-n/acpi_tables.c @@ -5,14 +5,54 @@ * 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 <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include "../../../southbridge/via/vt8237r/vt8237r.h" extern unsigned char AmlCode[]; +/* + * These four macros are copied from <arch/smp/mpspec.h>, I have to do this + * since the "default CONFIG_HAVE_MP_TABLE = 0" in Options.lb, and also since + * mainboard/via/... have no mptable.c (so that I can not set + * CONFIG_HAVE_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 */ @@ -25,9 +65,49 @@ unsigned long acpi_fill_slit(unsigned long current) 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_APIC_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) { - /* Nothing to do */ + 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, VT8237R_APIC_BASE, 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; } @@ -37,12 +117,16 @@ unsigned long acpi_fill_srat(unsigned long current) return current; } +#define ALIGN(x,a) __ALIGN_MASK(x,(typeof(x))(a)-1) +#define __ALIGN_MASK(x,mask) (((x)+(mask))&~(mask)) +#define ALIGN_CURRENT current = ((current + 0x0f) & -0x10) + unsigned long write_acpi_tables(unsigned long start) { unsigned long current; acpi_rsdp_t *rsdp; acpi_rsdt_t *rsdt; - acpi_hpet_t *hpet; + acpi_xsdt_t *xsdt; acpi_madt_t *madt; acpi_fadt_t *fadt; acpi_facs_t *facs; @@ -70,10 +154,12 @@ unsigned long write_acpi_tables(unsigned long start) * We explicitly add these tables later on: */ printk_debug("ACPI: * FACS\n"); + current = ALIGN(current, 64); facs = (acpi_facs_t *) current; current += sizeof(acpi_facs_t); acpi_create_facs(facs); + printk_debug("ACPI: * DSDT\n"); dsdt = (acpi_header_t *)current; current += ((acpi_header_t *)AmlCode)->length; memcpy((void *)dsdt,(void *)AmlCode, ((acpi_header_t *)AmlCode)->length); @@ -88,6 +174,13 @@ unsigned long write_acpi_tables(unsigned long start) acpi_create_fadt(fadt,facs,dsdt); acpi_add_table(rsdp,fadt); + /* If we want IOAPIC Support Linux wants it in MADT. */ + printk_debug("ACPI: * MADT\n"); + madt = (acpi_madt_t *) current; + acpi_create_madt(madt); + current += madt->header.length; + acpi_add_table(rsdp, madt); + printk_info("ACPI: done.\n"); return current; } |