/* * This file is part of the coreboot project. * * Copyright (C) 2007-2009 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[]; void *amlcodeptr = &AmlCode; #if CONFIG_HAVE_ACPI_SLIC unsigned long acpi_create_slic(unsigned long current); #endif #define OLD_ACPI 0 #if OLD_ACPI static void acpi_create_gnvs(global_nvs_t *gnvs) { memset (gnvs, 0, sizeof(global_nvs_t)); gnvs->LIDS = 1; gnvs->PWRS = 1; gnvs->ACTT = 0x37; gnvs->PSVT = 0x4f; gnvs->TC1V = 0x00; gnvs->TC2V = 0x0a; gnvs->TSPV = 0x02; gnvs->CRTT = 0x77; gnvs->B0SC = 0x54; gnvs->APIC = 0x01; gnvs->MPEN = 0x01; gnvs->PPCM = 0x02; gnvs->PCP0 = 0xbf; gnvs->PCP1 = 0xbf; gnvs->CMAP = 0x01; gnvs->CMBP = 0x01; gnvs->LT0 = 0x01; gnvs->FDCP = 0x01; gnvs->CMCP = 0x01; gnvs->CMDP = 0x01; gnvs->P2M = 0x02; gnvs->IGDS = 0x01; gnvs->CADL = 0x09; gnvs->PADL = 0x09; gnvs->NDID = 3; gnvs->DID1 = 0x80000100; gnvs->DID2 = 0x80000240; gnvs->DID3 = 0x80000410; gnvs->DID4 = 0x80000410; gnvs->DID5 = 0x00000005; gnvs->ALAF = 0x64; gnvs->LLOW = 0x2c; gnvs->LHIH = 0x01; // tolud = pci_read_config32(dev_find_slot(0, PCI_DEVFN(2, 0)), 0x5c); // oemb->topm = tolud; } #endif #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 both COM ports */ gnvs->cmap = 0x01; gnvs->cmbp = 0x01; /* IGD Displays */ gnvs->ndid = 3; gnvs->did[0] = 0x80000100; gnvs->did[1] = 0x80000240; gnvs->did[2] = 0x80000410; 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, "COREBOOT", 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)); } #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); /* LAPIC_NMI */ current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *) current, 0, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_EDGE, 0x01); current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *) current, 1, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_EDGE, 0x01); /* INT_SRC_OVR */ current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current, 0, 0, 2, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_EDGE); current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current, 0, 9, 9, MP_IRQ_POLARITY_HIGH | MP_IRQ_TRIGGER_LEVEL); 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; void *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); /* * 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); int len = ((acpi_header_t *)amlcodeptr)->length; current += len; dsdt = (acpi_header_t *) current; memcpy((void *) dsdt, amlcodeptr, len); /* 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 * 0x00000020 - 0x0000019c Low MP Table (XXX conflict?) * 0x00000400 - 0x000004ff BDA (somewhat unused) * 0x00000500 - 0x0000052f Moved GDT * 0x00000530 - 0x00000b64 coreboot table * 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; /* And tell SMI about it */ smm_setup_structures(gnvs, NULL, NULL); /* 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); #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, "COREBOOT"); 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"); /* Enable Dummy DCC ON# for DVI */ printk(BIOS_DEBUG, "Laptop handling...\n"); outb(inb(0x60f) & ~(1 << 5), 0x60f); return current; }