2 * This file is part of the coreboot project.
4 * Copyright (C) 2007 Advanced Micro Devices, Inc.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; version 2 of the License.
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
15 * You should have received a copy of the GNU General Public License
16 * along with this program; if not, write to the Free Software
17 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
20 #include <console/console.h>
21 #include <cpu/x86/msr.h>
22 #include <cpu/amd/mtrr.h>
23 #include <device/device.h>
24 #include <device/pci.h>
26 #include <cpu/x86/msr.h>
27 #include <cpu/x86/smm.h>
28 #include <cpu/x86/pae.h>
29 #include <pc80/mc146818rtc.h>
30 #include <cpu/x86/lapic.h>
31 #include "northbridge/amd/amdfam10/amdfam10.h"
32 #include <cpu/amd/model_10xxx_rev.h>
34 #include <cpu/x86/cache.h>
35 #include <cpu/x86/mtrr.h>
36 #include <cpu/amd/multicore.h>
37 #include <cpu/amd/model_10xxx_msr.h>
39 #define MCI_STATUS 0x401
41 msr_t rdmsr_amd(u32 index)
46 :"=a"(result.lo), "=d"(result.hi)
47 :"c"(index), "D"(0x9c5a203a)
52 void wrmsr_amd(u32 index, msr_t msr)
57 :"c"(index), "a"(msr.lo), "d"(msr.hi), "D"(0x9c5a203a)
61 static void model_10xxx_init(device_t dev)
65 struct node_core_id id;
66 #if CONFIG_LOGICAL_CPUS == 1
70 id = get_node_core_id(read_nb_cfg_54()); /* nb_cfg_54 can not be set */
71 printk(BIOS_DEBUG, "nodeid = %02d, coreid = %02d\n", id.nodeid, id.coreid);
73 /* Turn on caching if we haven't already */
80 /* zero the machine check error status registers */
83 for (i = 0; i < 5; i++) {
84 wrmsr(MCI_STATUS + (i * 4), msr);
89 /* Enable the local cpu apics */
92 /* Set the processor name string */
93 init_processor_name();
95 #if CONFIG_LOGICAL_CPUS == 1
96 siblings = cpuid_ecx(0x80000008) & 0xff;
99 msr = rdmsr_amd(CPU_ID_FEATURES_MSR);
101 wrmsr_amd(CPU_ID_FEATURES_MSR, msr);
103 msr = rdmsr_amd(CPU_ID_EXT_FEATURES_MSR);
104 msr.hi |= 1 << (33 - 32);
105 wrmsr_amd(CPU_ID_EXT_FEATURES_MSR, msr);
107 printk(BIOS_DEBUG, "siblings = %02d, ", siblings);
110 /* DisableCf8ExtCfg */
111 msr = rdmsr(NB_CFG_MSR);
112 msr.hi &= ~(1 << (46 - 32));
113 wrmsr(NB_CFG_MSR, msr);
115 msr = rdmsr(BU_CFG2_MSR);
116 /* Clear ClLinesToNbDis */
117 msr.lo &= ~(1 << 15);
118 /* Clear bit 35 as per Erratum 343 */
119 msr.hi &= ~(1 << (35-32));
120 wrmsr(BU_CFG2_MSR, msr);
122 /* Set SMM base address for this CPU */
123 msr = rdmsr(SMM_BASE_MSR);
124 msr.lo = SMM_BASE - (lapicid() * 0x400);
125 wrmsr(SMM_BASE_MSR, msr);
127 /* Enable the SMM memory window */
128 msr = rdmsr(SMM_MASK_MSR);
129 msr.lo |= (1 << 0); /* Enable ASEG SMRAM Range */
130 wrmsr(SMM_MASK_MSR, msr);
132 /* Set SMMLOCK to avoid exploits messing with SMM */
133 msr = rdmsr(HWCR_MSR);
135 wrmsr(HWCR_MSR, msr);
139 static struct device_operations cpu_dev_ops = {
140 .init = model_10xxx_init,
143 static struct cpu_device_id cpu_table[] = {
145 { X86_VENDOR_AMD, 0x100f00 }, /* SH-F0 L1 */
146 { X86_VENDOR_AMD, 0x100f10 }, /* M2 */
147 { X86_VENDOR_AMD, 0x100f20 }, /* S1g1 */
148 { X86_VENDOR_AMD, 0x100f21 },
149 { X86_VENDOR_AMD, 0x100f2A },
150 { X86_VENDOR_AMD, 0x100f22 },
151 { X86_VENDOR_AMD, 0x100f23 },
152 { X86_VENDOR_AMD, 0x100f40 }, /* RB-C0 */
153 { X86_VENDOR_AMD, 0x100F42 }, /* RB-C2 */
154 { X86_VENDOR_AMD, 0x100F43 }, /* RB-C3 */
155 { X86_VENDOR_AMD, 0x100F52 }, /* BL-C2 */
156 { X86_VENDOR_AMD, 0x100F62 }, /* DA-C2 */
157 { X86_VENDOR_AMD, 0x100F63 }, /* DA-C3 */
158 { X86_VENDOR_AMD, 0x100F80 }, /* HY-D0 */
159 { X86_VENDOR_AMD, 0x100F81 }, /* HY-D1 */
163 static const struct cpu_driver model_10xxx __cpu_driver = {
165 .id_table = cpu_table,