/* * This file is part of the coreboot project. * * Copyright (C) 2010 Advanced Micro Devices, Inc. * * 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 "northbridge/amd/amdk8/acpi.h" #include #include #include #define DUMP_ACPI_TABLES 0 /* * Assume the max pstate number is 8 * 0x21(33 bytes) is one package length of _PSS package */ #define Maxpstate 8 #define Defpkglength 0x21 #if DUMP_ACPI_TABLES == 1 static void dump_mem(u32 start, u32 end) { u32 i; print_debug("dump_mem:"); for (i = start; i < end; i++) { if ((i & 0xf) == 0) { printk(BIOS_DEBUG, "\n%08x:", i); } printk(BIOS_DEBUG, " %02x", (u8)*((u8 *)i)); } print_debug("\n"); } #endif extern const unsigned char AmlCode[]; #if CONFIG_ACPI_SSDTX_NUM >= 1 extern const unsigned char AmlCode_ssdt2[]; extern const unsigned char AmlCode_ssdt3[]; extern const unsigned char AmlCode_ssdt4[]; extern const unsigned char AmlCode_ssdt5[]; #endif unsigned long acpi_fill_mcfg(unsigned long current) { /* Just a dummy */ return current; } unsigned long acpi_fill_madt(unsigned long current) { /* create all subtables for processors */ current = acpi_create_madt_lapics(current); /* Write SB700 IOAPIC, only one */ current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, 2, IO_APIC_ADDR, 0); 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, 0xF); /* 0: mean bus 0--->ISA */ /* 0: PIC 0 */ /* 2: APIC 2 */ /* 5 mean: 0101 --> Edige-triggered, Active high */ /* create all subtables for processors */ /* current = acpi_create_madt_lapic_nmis(current, 5, 1); */ /* 1: LINT1 connect to NMI */ return current; } unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id) { k8acpi_write_vars(); amd_model_fxx_generate_powernow(ACPI_CPU_CONTROL, 6, 1); return (unsigned long) (acpigen_get_current()); } unsigned long write_acpi_tables(unsigned long start) { unsigned long current; acpi_rsdp_t *rsdp; acpi_rsdt_t *rsdt; acpi_hpet_t *hpet; acpi_madt_t *madt; acpi_fadt_t *fadt; acpi_facs_t *facs; acpi_header_t *dsdt; acpi_header_t *ssdt; #if CONFIG_ACPI_SSDTX_NUM >= 1 acpi_header_t *ssdtx; void *p; int i; #endif get_bus_conf(); /* it will get sblk, pci1234, hcdn, and sbdn */ /* Align ACPI tables to 16 bytes */ start = (start + 0x0f) & -0x10; current = start; 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); rsdt = (acpi_rsdt_t *) current; current += sizeof(acpi_rsdt_t); /* 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: */ /* If we want to use HPET Timers Linux wants an MADT */ printk(BIOS_DEBUG, "ACPI: * HPET\n"); hpet = (acpi_hpet_t *) current; current += sizeof(acpi_hpet_t); acpi_create_hpet(hpet); acpi_add_table(rsdp, hpet); printk(BIOS_DEBUG, "ACPI: * MADT\n"); madt = (acpi_madt_t *) current; acpi_create_madt(madt); current += madt->header.length; acpi_add_table(rsdp, madt); /* SSDT */ 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); #if CONFIG_ACPI_SSDTX_NUM >= 1 /* same htio, but different position? We may have to copy, change HCIN, and recalculate the checknum and add_table */ for (i = 1; i < sysconf.hc_possible_num; i++) { /* 0: is hc sblink */ if ((sysconf.pci1234[i] & 1) != 1) continue; u8 c; if (i < 7) { c = (u8) ('4' + i - 1); } else { c = (u8) ('A' + i - 1 - 6); } printk(BIOS_DEBUG, "ACPI: * SSDT for PCI%c Aka hcid = %d\n", c, sysconf.hcid[i]); /* pci0 and pci1 are in dsdt */ current = (current + 0x07) & -0x08; ssdtx = (acpi_header_t *) current; switch (sysconf.hcid[i]) { case 1: /* 8132 */ p = &AmlCode_ssdt2; break; case 2: /* 8151 */ p = &AmlCode_ssdt3; break; case 3: /* 8131 */ p = &AmlCode_ssdt4; break; default: /* HTX no io apic */ p = &AmlCode_ssdt5; break; } memcpy(ssdtx, p, sizeof(acpi_header_t)); current += ssdtx->length; memcpy(ssdtx, p, ssdtx->length); update_ssdtx((void *)ssdtx, i); ssdtx->checksum = 0; ssdtx->checksum = acpi_checksum((u8 *)ssdtx, ssdtx->length); acpi_add_table(rsdp, ssdtx); } #endif /* FACS */ printk(BIOS_DEBUG, "ACPI: * FACS\n"); facs = (acpi_facs_t *) current; current += sizeof(acpi_facs_t); acpi_create_facs(facs); /* DSDT */ printk(BIOS_DEBUG, "ACPI: * DSDT\n"); dsdt = (acpi_header_t *)current; memcpy(dsdt, &AmlCode, sizeof(acpi_header_t)); current += dsdt->length; memcpy(dsdt, &AmlCode, dsdt->length); printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt, dsdt->length); /* FADT */ printk(BIOS_DEBUG, "ACPI: * FADT\n"); fadt = (acpi_fadt_t *) current; current += sizeof(acpi_fadt_t); acpi_create_fadt(fadt, facs, dsdt); acpi_add_table(rsdp, fadt); #if DUMP_ACPI_TABLES == 1 printk(BIOS_DEBUG, "rsdp\n"); dump_mem(rsdp, ((void *)rsdp) + sizeof(acpi_rsdp_t)); printk(BIOS_DEBUG, "rsdt\n"); dump_mem(rsdt, ((void *)rsdt) + sizeof(acpi_rsdt_t)); printk(BIOS_DEBUG, "madt\n"); dump_mem(madt, ((void *)madt) + madt->header.length); printk(BIOS_DEBUG, "ssdt\n"); dump_mem(ssdt, ((void *)ssdt) + ssdt->length); printk(BIOS_DEBUG, "fadt\n"); dump_mem(fadt, ((void *)fadt) + fadt->header.length); #endif printk(BIOS_INFO, "ACPI: done.\n"); return current; }