2 * This file is part of the coreboot project.
4 * Copyright (C) 2006 AMD
5 * Written by Yinghai Lu <yinghailu@amd.com> for AMD.
7 * Copyright (C) 2006 MSI
8 * Written by Bingxun Shi <bingxunshi@gmail.com> for MSI.
10 * This program is free software; you can redistribute it and/or modify
11 * it under the terms of the GNU General Public License as published by
12 * the Free Software Foundation; either version 2 of the License, or
13 * (at your option) any later version.
15 * This program is distributed in the hope that it will be useful,
16 * but WITHOUT ANY WARRANTY; without even the implied warranty of
17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
18 * GNU General Public License for more details.
20 * You should have received a copy of the GNU General Public License
21 * along with this program; if not, write to the Free Software
22 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
25 #include <console/console.h>
26 #include <device/pci.h>
27 #include <device/pci_ids.h>
30 #if CONFIG_LOGICAL_CPUS==1
31 #include <cpu/amd/dualcore.h>
34 #include <cpu/amd/amdk8_sysconf.h>
37 #include "mb_sysconf.h"
39 // Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
40 struct mb_sysconf_t mb_sysconf;
43 { //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
55 { //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
67 extern void get_sblk_pci1234(void);
69 static unsigned get_bus_conf_done = 0;
71 static unsigned get_hcid(unsigned i)
75 unsigned busn = (sysconf.pci1234[i] >> 16) & 0xff;
77 unsigned devn = sysconf.hcdn[i] & 0xff;
81 dev = dev_find_slot(busn, PCI_DEVFN(devn,0));
83 switch (dev->device) {
89 // we may need more way to find out hcid: subsystem id? GPIO read ?
91 // we need use id for 1. bus num, 2. mptable, 3. acpi table
96 void get_bus_conf(void)
100 struct mb_sysconf_t *m;
105 if(get_bus_conf_done==1) return; //do it only once
107 get_bus_conf_done = 1;
109 sysconf.mb = &mb_sysconf;
112 memset(m, 0, sizeof(struct mb_sysconf_t));
114 sysconf.hc_possible_num = ARRAY_SIZE(pci1234x);
115 for(i=0;i<sysconf.hc_possible_num; i++) {
116 sysconf.pci1234[i] = pci1234x[i];
117 sysconf.hcdn[i] = hcdnx[i];
122 sysconf.sbdn = (sysconf.hcdn[0] & 0xff); // first byte of first chain
124 m->bus_type[0] = 1; //pci
126 m->bus_mcp55[0] = (sysconf.pci1234[0] >> 16) & 0xff;
129 dev = dev_find_slot(m->bus_mcp55[0], PCI_DEVFN(sysconf.sbdn + 0x06,0));
131 m->bus_mcp55[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
134 printk(BIOS_DEBUG, "ERROR - could not find PCI 1:%02x.0, using defaults\n", sysconf.sbdn + 0x06);
138 dev = dev_find_slot(m->bus_mcp55[0], PCI_DEVFN(sysconf.sbdn + 0x0a + i - 2 , 0));
140 m->bus_mcp55[i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
143 printk(BIOS_DEBUG, "ERROR - could not find PCI %02x:%02x.0, using defaults\n", m->bus_mcp55[0], sysconf.sbdn + 0x0a + i - 2 );
147 for(i=0; i< sysconf.hc_possible_num; i++) {
148 if(!(sysconf.pci1234[i] & 0x1) ) continue;
150 unsigned busn = (sysconf.pci1234[i] >> 16) & 0xff;
151 unsigned busn_max = (sysconf.pci1234[i] >> 24) & 0xff;
152 for (j = busn; j <= busn_max; j++)
154 if(m->bus_isa <= busn_max)
155 m->bus_isa = busn_max + 1;
156 printk(BIOS_DEBUG, "i=%d bus range: [%x, %x] bus_isa=%x\n",i, busn, busn_max, m->bus_isa);
161 /*I/O APICs: APIC ID Version State Address*/
162 #if CONFIG_LOGICAL_CPUS==1
163 apicid_base = get_apicid_base(1);
165 apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
167 m->apicid_mcp55 = apicid_base+0;