From 7cfa7f97a1affb06f493a2335c99b213a91d335d Mon Sep 17 00:00:00 2001 From: Stefan Reinauer Date: Sun, 16 May 2010 14:24:41 +0000 Subject: Add support for the Getac P470 Signed-off-by: Stefan Reinauer Acked-by: Uwe Hermann git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5559 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1 --- src/mainboard/getac/p470/acpi_tables.c | 370 +++++++++++++++++++++++++++++++++ 1 file changed, 370 insertions(+) create mode 100644 src/mainboard/getac/p470/acpi_tables.c (limited to 'src/mainboard/getac/p470/acpi_tables.c') diff --git a/src/mainboard/getac/p470/acpi_tables.c b/src/mainboard/getac/p470/acpi_tables.c new file mode 100644 index 0000000000..d726678df5 --- /dev/null +++ b/src/mainboard/getac/p470/acpi_tables.c @@ -0,0 +1,370 @@ +/* + * This file is part of the coreboot project. + * + * Copyright (C) 2007-2010 coresystems GmbH + * + * 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 +#include +#include +#include +#include +#include +#include +#include +#include +#include "dmi.h" + +extern unsigned char AmlCode[]; + +#include "../../../southbridge/intel/i82801gx/i82801gx_nvs.h" + +static void acpi_create_gnvs(global_nvs_t *gnvs) +{ + memset((void *)gnvs, 0, sizeof(*gnvs)); + gnvs->apic = 1; + gnvs->mpen = 1; /* Enable Multi Processing */ + + /* Enable COM port(s) */ + gnvs->cmap = 0x01; + gnvs->cmbp = 0x00; + + /* IGD Displays */ + gnvs->ndid = 2; + gnvs->did[0] = 0x80000100; + gnvs->did[1] = 0x80000410; + gnvs->did[2] = 0x80000320; + gnvs->did[3] = 0x80000410; + gnvs->did[4] = 0x00000005; +} + +static void acpi_create_intel_hpet(acpi_hpet_t * hpet) +{ +#define HPET_ADDR 0xfed00000ULL + acpi_header_t *header = &(hpet->header); + acpi_addr_t *addr = &(hpet->addr); + + memset((void *) hpet, 0, sizeof(acpi_hpet_t)); + + /* fill out header fields */ + memcpy(header->signature, "HPET", 4); + memcpy(header->oem_id, OEM_ID, 6); + memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8); + memcpy(header->asl_compiler_id, ASLC, 4); + + header->length = sizeof(acpi_hpet_t); + header->revision = 1; + + /* fill out HPET address */ + addr->space_id = 0; /* Memory */ + addr->bit_width = 64; + addr->bit_offset = 0; + addr->addrl = HPET_ADDR & 0xffffffff; + addr->addrh = HPET_ADDR >> 32; + + hpet->id = 0x8086a201; /* Intel */ + hpet->number = 0x00; + hpet->min_tick = 0x0080; + + header->checksum = + acpi_checksum((void *) hpet, sizeof(acpi_hpet_t)); +} + +static long acpi_create_ecdt(acpi_ecdt_t * ecdt) +{ + /* Attention: Make sure these match the values from + * the DSDT's ec.asl + */ + static const char ec_id[] = "\\_SB.PCI0.LPCB.EC0"; + int ecdt_len = sizeof(acpi_ecdt_t) + strlen(ec_id) + 1; + + acpi_header_t *header = &(ecdt->header); + + memset((void *) ecdt, 0, ecdt_len); + + /* fill out header fields */ + memcpy(header->signature, "ECDT", 4); + memcpy(header->oem_id, OEM_ID, 6); + memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8); + memcpy(header->asl_compiler_id, ASLC, 4); + + header->length = ecdt_len; + header->revision = 1; + + /* Location of the two EC registers */ + ecdt->ec_control.space_id = ACPI_ADDRESS_SPACE_IO; + ecdt->ec_control.bit_width = 8; + ecdt->ec_control.bit_offset = 0; + ecdt->ec_control.addrl = 0x66; + ecdt->ec_control.addrh = 0; + + ecdt->ec_data.space_id = ACPI_ADDRESS_SPACE_IO; /* Memory */ + ecdt->ec_data.bit_width = 8; + ecdt->ec_data.bit_offset = 0; + ecdt->ec_data.addrl = 0x62; + ecdt->ec_data.addrh = 0; + + ecdt->uid = 1; // Must match _UID of the EC0 node. + + ecdt->gpe_bit = 23; // SCI interrupt within GPEx_STS + + strncpy((char *)ecdt->ec_id, ec_id, strlen(ec_id)); + + header->checksum = + acpi_checksum((void *) ecdt, ecdt_len); + + return header->length; +} + +#define IO_APIC_ADDR 0xfec00000UL + +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); + + /* INT_SRC_OVR */ + current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) + current, 0, 0, 2, 0); + current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) + current, 0, 9, 9, MP_IRQ_TRIGGER_LEVEL | MP_IRQ_POLARITY_HIGH); + + /* LAPIC_NMI */ + current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *) + current, 0, 0x0005, 0x01); + current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *) + current, 1, 0x0005, 0x01); + + 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; +} + +void smm_setup_structures(void *gnvs, void *tcg, void *smi1); + +#define ALIGN_CURRENT current = ((current + 0x0f) & -0x10) +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; +#if CONFIG_HAVE_ACPI_SLIC + acpi_header_t *slic; +#endif + acpi_header_t *ssdt; + acpi_header_t *dsdt; + acpi_header_t *ecdt; + + void *gnvs, *smi1; + + 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); + + /* + * We explicitly add these tables later on: + */ + printk(BIOS_DEBUG, "ACPI: * HPET\n"); + + hpet = (acpi_hpet_t *) current; + current += sizeof(acpi_hpet_t); + ALIGN_CURRENT; + acpi_create_intel_hpet(hpet); + acpi_add_table(rsdp, hpet); + + /* If we want to use HPET Timers Linux wants an MADT */ + 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_DEBUG, "ACPI: * MCFG\n"); + mcfg = (acpi_mcfg_t *) current; + acpi_create_mcfg(mcfg); + current += mcfg->header.length; + ALIGN_CURRENT; + acpi_add_table(rsdp, mcfg); + + 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, &AmlCode, sizeof(acpi_header_t)); + current += dsdt->length; + memcpy(dsdt, &AmlCode, dsdt->length); + + /* Fix up global NVS region for SMI handler. The GNVS region lives + * in the (high) table area. The low memory map looks like this: + * + * 0x00000000 - 0x000003ff Real Mode IVT + * 0x00000400 - 0x000004ff BDA (somewhat unused) + * 0x00000500 - 0x00000518 coreboot table forwarder + * 0x00000600 - 0x00000??? realmode trampoline + * 0x0007c000 - 0x0007dfff OS boot sector (unused?) + * 0x0007e000 - 0x0007ffff free to use (so no good for acpi+smi) + * 0x00080000 - 0x0009fbff usable ram + * 0x0009fc00 - 0x0009ffff EBDA (unused?) + * 0x000a0000 - 0x000bffff VGA memory + * 0x000c0000 - 0x000cffff VGA option rom + * 0x000d0000 - 0x000dffff free for other option roms? + * 0x000e0000 - 0x000fffff SeaBIOS? (conflict with low tables:) + * 0x000f0000 - 0x000f03ff PIRQ table + * 0x000f0400 - 0x000f66?? ACPI tables + * 0x000f66?? - 0x000f???? DMI tables + */ + + ALIGN_CURRENT; + + /* Pack GNVS into the ACPI table area */ + 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 -> 0x%08x\n", i, (u32)current); + *(u32*)(((u32)dsdt) + i) = current; // 0x92 bytes + break; + } + } + + /* And fill it */ + acpi_create_gnvs((global_nvs_t *)current); + + /* Keep pointer around */ + gnvs = (void *)current; + + current += 0x100; + ALIGN_CURRENT; + + for (i=0; i < dsdt->length; i++) { + if (*(u32*)(((u32)dsdt) + i) == 0xC0DEDEAD) { + printk(BIOS_DEBUG, "ACPI: Patching up SMI1 area in DSDT at offset 0x%04x -> 0x%08x\n", i, (u32)current); + *(u32*)(((u32)dsdt) + i) = current; // 0x100 bytes + break; + } + } + + /* Keep pointer around */ + smi1 = (void *)current; + + current += 0x100; + ALIGN_CURRENT; + + /* And tell SMI about it */ + smm_setup_structures(gnvs, NULL, smi1); + + /* 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: * DSDT @ %p Length %x\n", dsdt, + dsdt->length); + + printk(BIOS_DEBUG, "ACPI: * ECDT\n"); + ecdt = (acpi_header_t *)current; + current += acpi_create_ecdt((acpi_ecdt_t *)current); + ALIGN_CURRENT; + acpi_add_table(rsdp, ecdt); + +#if CONFIG_HAVE_ACPI_SLIC + printk(BIOS_DEBUG, "ACPI: * SLIC\n"); + slic = (acpi_header_t *)current; + current += acpi_create_slic(current); + ALIGN_CURRENT; + acpi_add_table(rsdp, slic); +#endif + + printk(BIOS_DEBUG, "ACPI: * FADT\n"); + 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: * SSDT\n"); + ssdt = (acpi_header_t *)current; + acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR); + current += ssdt->length; + acpi_add_table(rsdp, ssdt); + ALIGN_CURRENT; + + printk(BIOS_DEBUG, "current = %lx\n", current); + + printk(BIOS_DEBUG, "ACPI: * DMI (Linux workaround)\n"); + memcpy((void *)0xfff80, dmi_table, DMI_TABLE_SIZE); +#if CONFIG_WRITE_HIGH_TABLES == 1 + memcpy((void *)current, dmi_table, DMI_TABLE_SIZE); + current += DMI_TABLE_SIZE; + ALIGN_CURRENT; +#endif + + printk(BIOS_INFO, "ACPI: done.\n"); + return current; +} -- cgit v1.2.3