diff options
Diffstat (limited to 'src/mainboard/intel/minnowmax/acpi_tables.c')
-rw-r--r-- | src/mainboard/intel/minnowmax/acpi_tables.c | 282 |
1 files changed, 282 insertions, 0 deletions
diff --git a/src/mainboard/intel/minnowmax/acpi_tables.c b/src/mainboard/intel/minnowmax/acpi_tables.c new file mode 100644 index 0000000000..881c14391c --- /dev/null +++ b/src/mainboard/intel/minnowmax/acpi_tables.c @@ -0,0 +1,282 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2012 Google Inc. + * Copyright (C) 2013-2014 Sage Electronic Engineering, LLC. + * + * 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 <types.h> +#include <string.h> +#include <cbmem.h> +#include <lib.h> // hexdump +#include <console/console.h> +#include <arch/acpi.h> +#include <arch/ioapic.h> +#include <arch/acpigen.h> +#include <arch/smp/mpspec.h> +#include <device/device.h> +#include <device/pci.h> +#include <device/pci_ids.h> +#include <cpu/cpu.h> +#include <cpu/x86/msr.h> +#include <baytrail/acpi.h> +#include <baytrail/nvs.h> +#include <baytrail/iomap.h> + + +extern const unsigned char AmlCode[]; + +static void acpi_create_gnvs(global_nvs_t *gnvs) +{ + acpi_init_gnvs(gnvs); + + /* No TPM Present */ + gnvs->tpmp = 0; + +} + +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); + + current = acpi_madt_irq_overrides(current); + + 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; +} + +#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; + acpi_header_t *ssdt; + acpi_header_t *ssdt2; + acpi_header_t *dsdt; + global_nvs_t *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); + + facs = (acpi_facs_t *) current; + current += sizeof(acpi_facs_t); + ALIGN_CURRENT; + acpi_create_facs(facs); + printk(BIOS_DEBUG, "ACPI: * FACS @ %p Length %x", facs, + facs->length); + + dsdt = (acpi_header_t *) current; + memcpy(dsdt, &AmlCode, sizeof(acpi_header_t)); + current += dsdt->length; + ALIGN_CURRENT; + memcpy(dsdt, &AmlCode, dsdt->length); + printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x", dsdt, + dsdt->length); + + 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: * FADT @ %p Length %x", fadt, + fadt->header.length); + + /* + * We explicitly add these tables later on: + */ + hpet = (acpi_hpet_t *) current; + current += sizeof(acpi_hpet_t); + ALIGN_CURRENT; + acpi_create_intel_hpet(hpet); + acpi_add_table(rsdp, hpet); + printk(BIOS_DEBUG, "ACPI: * HPET @ %p Length %x\n", hpet, + hpet->header.length); + + /* If we want to use HPET Timers Linux wants an MADT */ + madt = (acpi_madt_t *) current; + acpi_create_madt(madt); + current += madt->header.length; + ALIGN_CURRENT; + acpi_add_table(rsdp, madt); + printk(BIOS_DEBUG, "ACPI: * MADT @ %p Length %x\n",madt, + madt->header.length); + + mcfg = (acpi_mcfg_t *) current; + acpi_create_mcfg(mcfg); + current += mcfg->header.length; + ALIGN_CURRENT; + acpi_add_table(rsdp, mcfg); + printk(BIOS_DEBUG, "ACPI: * MCFG @ %p Length %x\n",mcfg, + mcfg->header.length); + + /* Update GNVS pointer into CBMEM */ + gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); + if (!gnvs) { + printk(BIOS_DEBUG, "ACPI: Could not find CBMEM GNVS\n"); + gnvs = (global_nvs_t *)current; + } + + 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 -> %p\n", i, gnvs); + *(u32*)(((u32)dsdt) + i) = (unsigned long)gnvs; + acpi_save_gnvs((unsigned long)gnvs); + break; + } + } + + /* And fill it */ + acpi_create_gnvs(gnvs); + + /* And tell SMI about it */ +#if CONFIG_HAVE_SMI_HANDLER + smm_setup_structures(gnvs, NULL, NULL); +#endif + + current += sizeof(global_nvs_t); + ALIGN_CURRENT; + + /* 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 Updated DSDT @ %p Length %x\n", dsdt, + dsdt->length); + + ssdt = (acpi_header_t *)current; + memset(ssdt, 0, sizeof(acpi_header_t)); + acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR); + if (ssdt->length) { + current += ssdt->length; + acpi_add_table(rsdp, ssdt); + printk(BIOS_DEBUG, "ACPI: * SSDT @ %p Length %x\n",ssdt, + ssdt->length); + ALIGN_CURRENT; + } else { + ssdt = NULL; + printk(BIOS_DEBUG, "ACPI: * SSDT not generated.\n"); + } + + ssdt2 = (acpi_header_t *)current; + memset(ssdt2, 0, sizeof(acpi_header_t)); + acpi_create_serialio_ssdt(ssdt2); + if (ssdt2->length) { + current += ssdt2->length; + acpi_add_table(rsdp, ssdt2); + printk(BIOS_DEBUG, "ACPI: * SSDT2 @ %p Length %x\n",ssdt2, + ssdt2->length); + ALIGN_CURRENT; + } else { + ssdt2 = NULL; + printk(BIOS_DEBUG, "ACPI: * SSDT2 not generated.\n"); + } + + printk(BIOS_DEBUG, "current = %lx\n", current); + +#if IS_ENABLED(CONFIG_DUMP_ACPI_TABLES) + printk(BIOS_DEBUG, "rsdp\n"); + hexdump(BIOS_DEBUG, rsdp, sizeof(acpi_rsdp_t)); + + printk(BIOS_DEBUG, "rsdt\n"); + hexdump(BIOS_DEBUG, rsdt, sizeof(acpi_rsdt_t)); + + printk(BIOS_DEBUG, "hpet\n"); + hexdump(BIOS_DEBUG, hpet, hpet->header.length); + + printk(BIOS_DEBUG, "madt\n"); + hexdump(BIOS_DEBUG, madt, madt->header.length); + + printk(BIOS_DEBUG, "mcfg\n"); + hexdump(BIOS_DEBUG, mcfg, mcfg->header.length); + + printk(BIOS_DEBUG, "dsdt\n"); + hexdump(BIOS_DEBUG, dsdt, dsdt->length); + + if (ssdt != NULL) { + printk(BIOS_DEBUG, "ssdt\n"); + hexdump(BIOS_DEBUG, ssdt, ssdt->length); + } + + if (ssdt2 != NULL) { + printk(BIOS_DEBUG, "ssdt2\n"); + hexdump(BIOS_DEBUG, ssdt2, ssdt2->length); + } + + printk(BIOS_DEBUG, "fadt\n"); + hexdump(BIOS_DEBUG, fadt, fadt->header.length); + + printk(BIOS_DEBUG, "facs\n"); + hexdump(BIOS_DEBUG, facs, facs->length); + +#endif /* IS_ENABLED(CONFIG_DUMP_ACPI_TABLES) */ + + printk(BIOS_INFO, "ACPI: done.\n"); + return current; +} |