| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2013 Google 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 <stdlib.h> |
| #include <console/console.h> |
| #include <cpu/cpu.h> |
| #include <cpu/intel/microcode.h> |
| #include <cpu/x86/mtrr.h> |
| #include <cpu/x86/mp.h> |
| |
| #include <baytrail/pattrs.h> |
| #include <baytrail/ramstage.h> |
| |
| static struct mp_flight_record mp_steps[] = { |
| MP_FR_BLOCK_APS(mp_initialize_cpu, NULL, mp_initialize_cpu, NULL), |
| }; |
| |
| /* The APIC id space on Bay Trail is sparse. Each id is separated by 2. */ |
| static int adjust_apic_id(int index, int apic_id) |
| { |
| return 2 * index; |
| } |
| |
| void baytrail_init_cpus(device_t dev) |
| { |
| struct bus *cpu_bus = dev->link_list; |
| const struct pattrs *pattrs = pattrs_get(); |
| struct mp_params mp_params; |
| |
| /* Set up MTRRs based on physical address size. */ |
| x86_setup_fixed_mtrrs(); |
| x86_setup_var_mtrrs(pattrs->address_bits, 2); |
| x86_mtrr_check(); |
| |
| mp_params.num_cpus = pattrs->num_cpus, |
| mp_params.parallel_microcode_load = 1, |
| mp_params.adjust_apic_id = adjust_apic_id; |
| mp_params.flight_plan = &mp_steps[0]; |
| mp_params.num_records = ARRAY_SIZE(mp_steps); |
| mp_params.microcode_pointer = intel_microcode_find(); |
| mp_params.microcode_pointer = NULL; |
| |
| if (mp_init(cpu_bus, &mp_params)) { |
| printk(BIOS_ERR, "MP initialization failure.\n"); |
| } |
| } |
| |
| static void baytrail_core_init(device_t cpu) |
| { |
| printk(BIOS_DEBUG, "Init BayTrail core.\n"); |
| } |
| |
| static struct device_operations cpu_dev_ops = { |
| .init = baytrail_core_init, |
| }; |
| |
| static struct cpu_device_id cpu_table[] = { |
| { X86_VENDOR_INTEL, 0x30673 }, |
| { 0, 0 }, |
| }; |
| |
| static const struct cpu_driver driver __cpu_driver = { |
| .ops = &cpu_dev_ops, |
| .id_table = cpu_table, |
| }; |
| |