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/mtrr.h>
34 #include <usbdebug_direct.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 static inline void strcpy(char *dst, char *src)
63 while (*src) *dst++ = *src++;
66 static void fill_processor_name(char *processor_name)
68 struct cpuid_result regs;
69 char temp_processor_name[49];
70 char *processor_name_start;
71 unsigned int *name_as_ints = (unsigned int *)temp_processor_name;
75 regs = cpuid(0x80000002 + i);
76 name_as_ints[i*4 + 0] = regs.eax;
77 name_as_ints[i*4 + 1] = regs.ebx;
78 name_as_ints[i*4 + 2] = regs.ecx;
79 name_as_ints[i*4 + 3] = regs.edx;
82 temp_processor_name[48] = 0;
84 /* Skip leading spaces */
85 processor_name_start = temp_processor_name;
86 while (*processor_name_start == ' ')
87 processor_name_start++;
89 memset(processor_name, 0, 49);
90 strcpy(processor_name, processor_name_start);
93 #define IA32_FEATURE_CONTROL 0x003a
95 #define CPUID_VMX (1 << 5)
96 #define CPUID_SMX (1 << 6)
97 static void enable_vmx(void)
99 struct cpuid_result regs;
102 msr = rdmsr(IA32_FEATURE_CONTROL);
104 if (msr.lo & (1 << 0)) {
105 /* VMX locked. If we set it again we get an illegal
112 if (regs.ecx & CPUID_VMX) {
114 if (regs.ecx & CPUID_SMX)
118 wrmsr(IA32_FEATURE_CONTROL, msr);
120 msr.lo |= (1 << 0); /* Set lock bit */
122 wrmsr(IA32_FEATURE_CONTROL, msr);
125 #define PMG_CST_CONFIG_CONTROL 0xe2
126 #define PMG_IO_BASE_ADDR 0xe3
127 #define PMG_IO_CAPTURE_ADDR 0xe4
129 /* MWAIT coordination I/O base address. This must match
130 * the \_PR_.CPU0 PM base address.
132 #define PMB0_BASE 0x510
134 /* PMB1: I/O port that triggers SMI once cores are in the same state.
135 * See CSM Trigger, at PMG_CST_CONFIG_CONTROL[6:4]
137 #define PMB1_BASE 0x800
138 #define HIGHEST_CLEVEL 3
139 static void configure_c_states(void)
143 msr = rdmsr(PMG_CST_CONFIG_CONTROL);
145 msr.lo |= (1 << 15); // config lock until next reset
146 msr.lo |= (1 << 14); // Deeper Sleep
147 msr.lo |= (1 << 10); // Enable IO MWAIT redirection
148 msr.lo &= ~(1 << 9); // Issue a single stop grant cycle upon stpclk
149 msr.lo |= (1 << 3); // Dynamic L2
151 /* Number of supported C-States */
153 msr.lo |= HIGHEST_CLEVEL; // support at most C3
155 wrmsr(PMG_CST_CONFIG_CONTROL, msr);
157 /* Set Processor MWAIT IO BASE */
159 msr.lo = ((PMB0_BASE + 4) & 0xffff) | (((PMB1_BASE + 9) & 0xffff) << 16);
160 wrmsr(PMG_IO_BASE_ADDR, msr);
162 /* Set C_LVL controls and IO Capture Address */
164 msr.lo = (PMB0_BASE + 4) | ((HIGHEST_CLEVEL - 2) << 16); // -2 because LVL0+1 aren't counted
165 wrmsr(PMG_IO_CAPTURE_ADDR, msr);
168 #define IA32_MISC_ENABLE 0x1a0
169 static void configure_misc(void)
173 msr = rdmsr(IA32_MISC_ENABLE);
174 msr.lo |= (1 << 3); /* TM1 enable */
175 msr.lo |= (1 << 13); /* TM2 enable */
176 msr.lo |= (1 << 17); /* Bidirectional PROCHOT# */
178 msr.lo |= (1 << 10); /* FERR# multiplexing */
180 // TODO: Only if IA32_PLATFORM_ID[17] = 0 and IA32_PLATFORM_ID[50] = 1
181 msr.lo |= (1 << 16); /* Enhanced SpeedStep Enable */
187 /* TODO This should only be done on mobile CPUs, see cpuid 5 */
188 msr.hi |= (1 << (32 - 32)); // C4E
189 msr.hi |= (1 << (33 - 32)); // Hard C4E
192 /* NOTE: We leave the EMTTM_CR_TABLE0-5 at their default values */
193 msr.hi |= (1 << (36 - 32));
195 wrmsr(IA32_MISC_ENABLE, msr);
197 msr.lo |= (1 << 20); /* Lock Enhanced SpeedStep Enable */
198 wrmsr(IA32_MISC_ENABLE, msr);
201 #define PIC_SENS_CFG 0x1aa
202 static void configure_pic_thermal_sensors(void)
206 msr = rdmsr(PIC_SENS_CFG);
208 msr.lo |= (1 << 21); // inter-core lock TM1
209 msr.lo |= (1 << 4); // Enable bypass filter
211 wrmsr(PIC_SENS_CFG, msr);
214 #if CONFIG_USBDEBUG_DIRECT
215 static unsigned ehci_debug_addr;
218 static void model_6fx_init(device_t cpu)
220 char processor_name[49];
222 /* Turn on caching if we haven't already */
225 /* Update the microcode */
226 intel_update_microcode(microcode_updates);
228 /* Print processor name */
229 fill_processor_name(processor_name);
230 printk(BIOS_INFO, "CPU: %s.\n", processor_name);
232 #if CONFIG_USBDEBUG_DIRECT
233 // Is this caution really needed?
235 ehci_debug_addr = get_ehci_debug();
243 /* Setup Page Attribute Tables (PAT) */
246 #if CONFIG_USBDEBUG_DIRECT
247 set_ehci_debug(ehci_debug_addr);
250 /* Enable the local cpu apics */
253 /* Enable virtualization */
256 /* Configure C States */
257 configure_c_states();
259 /* Configure Enhanced SpeedStep and Thermal Sensors */
262 /* PIC thermal sensor control */
263 configure_pic_thermal_sensors();
265 /* Start up my cpu siblings */
266 intel_sibling_init(cpu);
269 static struct device_operations cpu_dev_ops = {
270 .init = model_6fx_init,
273 static struct cpu_device_id cpu_table[] = {
274 { X86_VENDOR_INTEL, 0x06f0 }, /* Intel Core 2 Solo/Core Duo */
275 { X86_VENDOR_INTEL, 0x06f2 }, /* Intel Core 2 Solo/Core Duo */
276 { X86_VENDOR_INTEL, 0x06f6 }, /* Intel Core 2 Solo/Core Duo */
277 { X86_VENDOR_INTEL, 0x06f7 }, /* Intel Core 2 Solo/Core Duo */
278 { X86_VENDOR_INTEL, 0x06fa }, /* Intel Core 2 Solo/Core Duo */
279 { X86_VENDOR_INTEL, 0x06fb }, /* Intel Core 2 Solo/Core Duo */
280 { X86_VENDOR_INTEL, 0x06fd }, /* Intel Core 2 Solo/Core Duo */
281 { X86_VENDOR_INTEL, 0x10676 }, /* Core2 Duo E8200 */
285 static const struct cpu_driver driver __cpu_driver = {
287 .id_table = cpu_table,