2 * This file is part of the coreboot project.
4 * Copyright (C) 2008 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 <device/pci.h>
22 #include <device/pci_ids.h>
25 #if CONFIG_LOGICAL_CPUS==1
26 #include <cpu/amd/dualcore.h>
29 #include <cpu/amd/amdk8_sysconf.h>
31 /* Global variables for MB layouts and these will be shared by irqtable mptable
32 * and acpi_tables busnum is default.
37 unsigned long apicid_sb600;
40 * Here you only need to set value in pci1234 for HT-IO that could be installed or not
41 * You may need to preset pci1234 for HTIO board,
42 * please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
44 unsigned long pci1234x[] = {
49 * HT Chain device num, actually it is unit id base of every ht device in chain,
50 * assume every chain only have 4 ht device at most
52 unsigned long hcdnx[] = {
56 unsigned long bus_type[256];
58 unsigned long sbdn_rs690;
59 unsigned long sbdn_sb600;
61 extern void get_sblk_pci1234(void);
63 static unsigned long get_bus_conf_done = 0;
65 void get_bus_conf(void)
67 unsigned long apicid_base;
71 if (get_bus_conf_done == 1)
72 return; /* do it only once */
73 get_bus_conf_done = 1;
75 sysconf.hc_possible_num = sizeof(pci1234x) / sizeof(pci1234x[0]);
76 for (i = 0; i < sysconf.hc_possible_num; i++) {
77 sysconf.pci1234[i] = pci1234x[i];
78 sysconf.hcdn[i] = hcdnx[i];
83 sysconf.sbdn = (sysconf.hcdn[0] & 0xff);
84 sbdn_rs690 = sysconf.sbdn;
87 for (i = 0; i < 2; i++) {
90 for (i = 0; i < 8; i++) {
94 for (i = 0; i < 256; i++) {
95 bus_type[i] = 0; /* default ISA bus. */
98 bus_type[0] = 1; /* pci */
100 bus_rs690[0] = (sysconf.pci1234[0] >> 16) & 0xff;
101 bus_sb600[0] = bus_rs690[0];
103 bus_type[bus_rs690[0]] = 1;
106 dev = dev_find_slot(bus_sb600[0], PCI_DEVFN(sbdn_sb600 + 0x14, 4));
108 bus_sb600[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
109 bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
111 for (j = bus_sb600[1]; j < bus_isa; j++)
116 for (i = 1; i < 8; i++) {
117 dev = dev_find_slot(bus_rs690[0], PCI_DEVFN(sbdn_rs690 + i, 0));
119 bus_rs690[i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
120 if(255 != bus_rs690[i]) {
121 bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
123 bus_type[bus_rs690[i]] = 1; /* PCI bus. */
128 /* I/O APICs: APIC ID Version State Address */
130 #if CONFIG_LOGICAL_CPUS==1
131 apicid_base = get_apicid_base(1);
133 apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
135 apicid_sb600 = apicid_base + 0;