2 * This file is part of the coreboot project.
4 * Copyright (C) 2007 AMD
5 * (Written by Yinghai Lu <yinghailu@amd.com> for AMD)
6 * Copyright (C) 2007 Philipp Degler <pdegler@rumms.uni-mannheim.de>
7 * (Thanks to LSRA University of Mannheim for their support)
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
24 #include <console/console.h>
25 #include <device/pci.h>
26 #include <device/pci_ids.h>
29 #if CONFIG_LOGICAL_CPUS == 1
30 #include <cpu/amd/dualcore.h>
33 #include <cpu/amd/amdk8_sysconf.h>
35 /* Global variables for MB layouts and these will be shared by irqtable,
36 * mptable and acpi_tables.
38 /* busnum is default */
39 unsigned char bus_isa;
40 unsigned char bus_ck804[6];
41 unsigned apicid_ck804;
43 unsigned pci1234x[] = { //Here you only need to set value in pci1234 for HT-IO that could be installed or not
44 //You may need to preset pci1234 for HTIO board, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
45 0x0000ff0, //no HTIO for a8n_e
47 unsigned hcdnx[] = { //HT Chain device num, actually it is unit id base of every ht device in chain, assume every chain only have 4 ht device at most
48 0x20202020, //a8n_e has only one ht-chain
50 unsigned bus_type[256];
52 extern void get_sblk_pci1234(void);
54 static unsigned get_bus_conf_done = 0;
56 void get_bus_conf(void)
64 if (get_bus_conf_done == 1)
65 return; //do it only once
67 get_bus_conf_done = 1;
69 sysconf.hc_possible_num = sizeof(pci1234x) / sizeof(pci1234x[0]);
70 sysconf.hc_possible_num = sizeof(pci1234x) / sizeof(pci1234x[0]);
71 for (i = 0; i < sysconf.hc_possible_num; i++) {
72 sysconf.pci1234[i] = pci1234x[i];
73 sysconf.hcdn[i] = hcdnx[i];
78 sysconf.sbdn = (sysconf.hcdn[0] & 0xff); // first byte of first chain
81 for (i = 0; i < 6; i++) {
85 for (i = 0; i < 256; i++) {
89 bus_type[0] = 1; //pci
91 bus_ck804[0] = (sysconf.pci1234[0] >> 16) & 0xff;
93 bus_type[bus_ck804[0]] = 1;
96 dev = dev_find_slot(bus_ck804[0], PCI_DEVFN(sbdn + 0x09, 0));
98 bus_ck804[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
99 bus_ck804[2] = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
103 ("ERROR - could not find PCI 1:%02x.0, using defaults\n",
109 for (i = 2; i < 6; i++) {
111 dev_find_slot(bus_ck804[0],
112 PCI_DEVFN(sbdn + 0x0b + i - 2, 0));
114 bus_ck804[i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
115 bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
117 for (j = bus_ck804[i]; j < bus_isa; j++)
121 ("ERROR - could not find PCI %02x:%02x.0, using defaults\n",
122 bus_ck804[0], sbdn + 0x0b + i - 2);
123 bus_isa = bus_ck804[i - 1] + 1;
127 /*I/O APICs: APIC ID Version State Address*/
128 #if CONFIG_LOGICAL_CPUS==1
129 apicid_base = get_apicid_base(3);
131 apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
133 apicid_ck804 = apicid_base + 0;