2 * This file is part of the coreboot project.
4 * Copyright (C) 2007-2009 coresystems GmbH
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License as
8 * published by the Free Software Foundation; version 2 of
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston,
22 #include <console/console.h>
23 #include <device/device.h>
24 #include <device/pci.h>
27 #include <cpu/x86/mtrr.h>
28 #include <cpu/x86/msr.h>
29 #include <cpu/x86/lapic.h>
30 #include <cpu/intel/microcode.h>
31 #include <cpu/intel/hyperthreading.h>
32 #include <cpu/x86/cache.h>
33 #include <cpu/x86/name.h>
36 static const uint32_t microcode_updates[] = {
37 #include "microcode-2129-m206f257.h"
38 #include "microcode-2334-m016fbB6.h"
39 #include "microcode-2336-m106fbB6.h"
40 #include "microcode-2337-m806fbB6.h"
41 #include "microcode-2346-m16fda3.h"
42 #include "microcode-2347-m206fda3.h"
43 #include "microcode-2348-m806fda3.h"
44 #include "microcode-2374-m16f6cb.h"
45 #include "microcode-2375-m206f6cc.h"
46 #include "microcode-2376-m46f6cd.h"
47 #include "microcode-2380-m106f768.h"
48 #include "microcode-2381-m406f769.h"
49 #include "microcode-2385-m806fa94.h"
50 #include "microcode-2389-m16f25a.h"
51 #include "microcode-2986-m086fbB8.h"
52 #include "microcode-2990-m046fbB9.h"
53 #include "microcode-2991-m406fbB9.h"
54 /* Dummy terminator */
61 #define IA32_FEATURE_CONTROL 0x003a
63 #define CPUID_VMX (1 << 5)
64 #define CPUID_SMX (1 << 6)
65 static void enable_vmx(void)
67 struct cpuid_result regs;
70 msr = rdmsr(IA32_FEATURE_CONTROL);
72 if (msr.lo & (1 << 0)) {
73 /* VMX locked. If we set it again we get an illegal
80 if (regs.ecx & CPUID_VMX) {
82 if (regs.ecx & CPUID_SMX)
86 wrmsr(IA32_FEATURE_CONTROL, msr);
88 msr.lo |= (1 << 0); /* Set lock bit */
90 wrmsr(IA32_FEATURE_CONTROL, msr);
93 #define PMG_CST_CONFIG_CONTROL 0xe2
94 #define PMG_IO_BASE_ADDR 0xe3
95 #define PMG_IO_CAPTURE_ADDR 0xe4
97 /* MWAIT coordination I/O base address. This must match
98 * the \_PR_.CPU0 PM base address.
100 #define PMB0_BASE 0x510
102 /* PMB1: I/O port that triggers SMI once cores are in the same state.
103 * See CSM Trigger, at PMG_CST_CONFIG_CONTROL[6:4]
105 #define PMB1_BASE 0x800
106 #define HIGHEST_CLEVEL 3
107 static void configure_c_states(void)
111 msr = rdmsr(PMG_CST_CONFIG_CONTROL);
113 msr.lo |= (1 << 15); // config lock until next reset
114 msr.lo |= (1 << 14); // Deeper Sleep
115 msr.lo |= (1 << 10); // Enable IO MWAIT redirection
116 msr.lo &= ~(1 << 9); // Issue a single stop grant cycle upon stpclk
117 msr.lo |= (1 << 3); // Dynamic L2
119 /* Number of supported C-States */
121 msr.lo |= HIGHEST_CLEVEL; // support at most C3
123 wrmsr(PMG_CST_CONFIG_CONTROL, msr);
125 /* Set Processor MWAIT IO BASE */
127 msr.lo = ((PMB0_BASE + 4) & 0xffff) | (((PMB1_BASE + 9) & 0xffff) << 16);
128 wrmsr(PMG_IO_BASE_ADDR, msr);
130 /* Set C_LVL controls and IO Capture Address */
132 msr.lo = (PMB0_BASE + 4) | ((HIGHEST_CLEVEL - 2) << 16); // -2 because LVL0+1 aren't counted
133 wrmsr(PMG_IO_CAPTURE_ADDR, msr);
136 #define IA32_MISC_ENABLE 0x1a0
137 static void configure_misc(void)
141 msr = rdmsr(IA32_MISC_ENABLE);
142 msr.lo |= (1 << 3); /* TM1 enable */
143 msr.lo |= (1 << 13); /* TM2 enable */
144 msr.lo |= (1 << 17); /* Bidirectional PROCHOT# */
146 msr.lo |= (1 << 10); /* FERR# multiplexing */
148 // TODO: Only if IA32_PLATFORM_ID[17] = 0 and IA32_PLATFORM_ID[50] = 1
149 msr.lo |= (1 << 16); /* Enhanced SpeedStep Enable */
155 /* TODO This should only be done on mobile CPUs, see cpuid 5 */
156 msr.hi |= (1 << (32 - 32)); // C4E
157 msr.hi |= (1 << (33 - 32)); // Hard C4E
160 /* NOTE: We leave the EMTTM_CR_TABLE0-5 at their default values */
161 msr.hi |= (1 << (36 - 32));
163 wrmsr(IA32_MISC_ENABLE, msr);
165 msr.lo |= (1 << 20); /* Lock Enhanced SpeedStep Enable */
166 wrmsr(IA32_MISC_ENABLE, msr);
169 #define PIC_SENS_CFG 0x1aa
170 static void configure_pic_thermal_sensors(void)
174 msr = rdmsr(PIC_SENS_CFG);
176 msr.lo |= (1 << 21); // inter-core lock TM1
177 msr.lo |= (1 << 4); // Enable bypass filter
179 wrmsr(PIC_SENS_CFG, msr);
183 static unsigned ehci_debug_addr;
186 static void model_6fx_init(device_t cpu)
188 char processor_name[49];
190 /* Turn on caching if we haven't already */
193 /* Update the microcode */
194 intel_update_microcode(microcode_updates);
196 /* Print processor name */
197 fill_processor_name(processor_name);
198 printk(BIOS_INFO, "CPU: %s.\n", processor_name);
201 // Is this caution really needed?
203 ehci_debug_addr = get_ehci_debug();
211 /* Setup Page Attribute Tables (PAT) */
215 set_ehci_debug(ehci_debug_addr);
218 /* Enable the local cpu apics */
221 /* Enable virtualization */
224 /* Configure C States */
225 configure_c_states();
227 /* Configure Enhanced SpeedStep and Thermal Sensors */
230 /* PIC thermal sensor control */
231 configure_pic_thermal_sensors();
233 /* Start up my cpu siblings */
234 intel_sibling_init(cpu);
237 static struct device_operations cpu_dev_ops = {
238 .init = model_6fx_init,
241 static struct cpu_device_id cpu_table[] = {
242 { X86_VENDOR_INTEL, 0x06f0 }, /* Intel Core 2 Solo/Core Duo */
243 { X86_VENDOR_INTEL, 0x06f2 }, /* Intel Core 2 Solo/Core Duo */
244 { X86_VENDOR_INTEL, 0x06f6 }, /* Intel Core 2 Solo/Core Duo */
245 { X86_VENDOR_INTEL, 0x06f7 }, /* Intel Core 2 Solo/Core Duo */
246 { X86_VENDOR_INTEL, 0x06fa }, /* Intel Core 2 Solo/Core Duo */
247 { X86_VENDOR_INTEL, 0x06fb }, /* Intel Core 2 Solo/Core Duo */
248 { X86_VENDOR_INTEL, 0x06fd }, /* Intel Core 2 Solo/Core Duo */
249 { X86_VENDOR_INTEL, 0x10676 }, /* Core2 Duo E8200 */
253 static const struct cpu_driver driver __cpu_driver = {
255 .id_table = cpu_table,