diff options
Diffstat (limited to 'src/mainboard/aopen/dxplplusu/acpi_tables.c')
| -rw-r--r-- | src/mainboard/aopen/dxplplusu/acpi_tables.c | 163 |
1 files changed, 163 insertions, 0 deletions
diff --git a/src/mainboard/aopen/dxplplusu/acpi_tables.c b/src/mainboard/aopen/dxplplusu/acpi_tables.c new file mode 100644 index 0000000000..b7c789a55b --- /dev/null +++ b/src/mainboard/aopen/dxplplusu/acpi_tables.c @@ -0,0 +1,163 @@ +/* + * This file is part of the coreboot project. + * + * Written by Stefan Reinauer <stepan@openbios.org> + * (C) 2005 Stefan Reinauer + * (C) 2005 Digital Design Corporation + * + * Ported to Intel XE7501DEVKIT by Agami Aruma + * Ported to AOpen DXPL Plus-U by Kyösti Mälkki + * + * 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 <device/pci.h> +#include <device/pci_ids.h> +#include <assert.h> +#include "bus.h" + +extern unsigned char AmlCode[]; + +unsigned long acpi_fill_mcfg(unsigned long current) +{ + /* Just a dummy */ + return current; +} + +unsigned long acpi_fill_slit(unsigned long current) +{ + // Not implemented + return current; +} + +unsigned long acpi_fill_srat(unsigned long current) +{ + // Not implemented + return current; +} + +unsigned long acpi_fill_madt(unsigned long current) +{ + unsigned int irq_start = 0; + device_t dev = 0; + struct resource* res = NULL; + + // SJM: Hard-code CPU LAPIC entries for now + current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 0, 0); + current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 1, 6); + current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 2, 1); + current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 3, 7); + + // Southbridge IOAPIC + current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, IOAPIC_ICH4, 0xfec00000, irq_start); + irq_start += INTEL_IOAPIC_NUM_INTERRUPTS; + + // P64H2 Bus B IOAPIC + dev = dev_find_slot(PCI_BUS_E7501_HI_B, PCI_DEVFN(28, 0)); + if (!dev) + BUG(); // Config.lb error? + res = find_resource(dev, PCI_BASE_ADDRESS_0); + current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, IOAPIC_P64H2_BUS_B, res->base, irq_start); + irq_start += INTEL_IOAPIC_NUM_INTERRUPTS; + + // P64H2 Bus A IOAPIC + dev = dev_find_slot(PCI_BUS_E7501_HI_B, PCI_DEVFN(30, 0)); + if (!dev) + BUG(); // Config.lb error? + res = find_resource(dev, PCI_BASE_ADDRESS_0); + current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, IOAPIC_P64H2_BUS_A, res->base, irq_start); + irq_start += INTEL_IOAPIC_NUM_INTERRUPTS; + + + // Map ISA IRQ 0 to IRQ 2 + current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)current, 1, 0, 2, 0); + + // IRQ9 differs from ISA standard - ours is active high, level-triggered + current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *)current, 0, 9, 9, 0xD); + + return current; +} + +#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_madt_t *madt; + acpi_facs_t *facs; + acpi_fadt_t *fadt; + acpi_header_t *dsdt; + + 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; + + /* 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: * FADT\n"); + fadt = (acpi_fadt_t *) current; + current += sizeof(acpi_fadt_t); + ALIGN_CURRENT; + + 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,(void *)AmlCode, sizeof(acpi_header_t)); + current += dsdt->length; + ALIGN_CURRENT; + memcpy(dsdt,(void *)AmlCode, dsdt->length); + dsdt->checksum = 0; + dsdt->checksum = acpi_checksum((void *)dsdt,dsdt->length); + printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n",dsdt,dsdt->length); + + acpi_create_fadt(fadt,facs,dsdt); + acpi_add_table(rsdp,fadt); + + 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_INFO, "ACPI: done.\n"); + return current; +} + |