2 * This file is part of the coreboot project.
4 * Copyright (C) 2007 AMD
5 * Written by Yinghai Lu <yinghailu@amd.com> for AMD.
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License as published by
9 * the Free Software Foundation; either version 2 of the License, or
10 * (at your option) any later version.
12 * This program is distributed in the hope that it will be useful,
13 * but WITHOUT ANY WARRANTY; without even the implied warranty of
14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 * GNU General Public License for more details.
17 * You should have received a copy of the GNU General Public License
18 * along with this program; if not, write to the Free Software
19 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
22 #include <console/console.h>
23 #include <device/pci.h>
24 #include <device/pci_ids.h>
27 #if CONFIG_LOGICAL_CPUS==1
28 #include <cpu/amd/multicore.h>
31 #include <cpu/amd/amdk8_sysconf.h>
34 #include "mb_sysconf.h"
36 // Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
37 struct mb_sysconf_t mb_sysconf;
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, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
52 { //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
66 static unsigned get_bus_conf_done = 0;
68 static unsigned get_hcid(unsigned i)
72 unsigned busn = (sysconf.pci1234[i] >> 16) & 0xff;
74 unsigned devn = sysconf.hcdn[i] & 0xff;
78 dev = dev_find_slot(busn, PCI_DEVFN(devn,0));
80 switch (dev->device) {
86 // we may need more way to find out hcid: subsystem id? GPIO read ?
88 // we need use id for 1. bus num, 2. mptable, 3. acpi table
93 void get_bus_conf(void)
96 struct mb_sysconf_t *m;
100 if (get_bus_conf_done)
101 return; //do it only once
103 get_bus_conf_done = 1;
105 sysconf.mb = &mb_sysconf;
108 memset(m, 0, sizeof(struct mb_sysconf_t));
110 sysconf.hc_possible_num = ARRAY_SIZE(pci1234x);
111 for (i = 0; i < sysconf.hc_possible_num; i++) {
112 sysconf.pci1234[i] = pci1234x[i];
113 sysconf.hcdn[i] = hcdnx[i];
118 sysconf.sbdn = (sysconf.hcdn[0] & 0xff); // first byte of first chain
120 m->sbdnb = (sysconf.hcdn[1] & 0xff); // first byte of second chain
122 m->bus_mcp55 = (sysconf.pci1234[0] >> 16) & 0xff;
125 for (i = 1; i < sysconf.hc_possible_num; i++) {
126 if (!(sysconf.pci1234[i] & 0x0f))
128 // check hcid type here
129 sysconf.hcid[i] = get_hcid(i);
130 if (!sysconf.hcid[i])
131 continue; //unknown co processor
133 m->bus_mcp55b = (sysconf.pci1234[1]>>16) & 0xff;
136 /*I/O APICs: APIC ID Version State Address*/
137 #if CONFIG_LOGICAL_CPUS==1
138 apicid_base = get_apicid_base(2);
140 apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
142 m->apicid_mcp55 = apicid_base+0;
143 m->apicid_mcp55b = apicid_base+1;