2 * This file is part of the LinuxBIOS 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>
36 #include "mb_sysconf.h"
38 // Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
39 struct mb_sysconf_t mb_sysconf;
42 { //Here you only need to set value in pci1234 for HT-IO that could be installed or not
43 //You may need to preset pci1234 for HTIO board, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
54 { //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 extern void get_sblk_pci1234(void);
68 static unsigned get_bus_conf_done = 0;
70 static unsigned get_hcid(unsigned i)
74 unsigned busn = (sysconf.pci1234[i] >> 16) & 0xff;
76 unsigned devn = sysconf.hcdn[i] & 0xff;
80 dev = dev_find_slot(busn, PCI_DEVFN(devn,0));
82 switch (dev->device) {
88 // we may need more way to find out hcid: subsystem id? GPIO read ?
90 // we need use id for 1. bus num, 2. mptable, 3. acpi table
95 void get_bus_conf(void)
99 struct mb_sysconf_t *m;
104 if(get_bus_conf_done==1) return; //do it only once
106 get_bus_conf_done = 1;
108 sysconf.mb = &mb_sysconf;
111 memset(m, 0, sizeof(struct mb_sysconf_t));
113 sysconf.hc_possible_num = sizeof(pci1234x)/sizeof(pci1234x[0]);
114 for(i=0;i<sysconf.hc_possible_num; i++) {
115 sysconf.pci1234[i] = pci1234x[i];
116 sysconf.hcdn[i] = hcdnx[i];
121 sysconf.sbdn = (sysconf.hcdn[0] & 0xff); // first byte of first chain
123 m->bus_type[0] = 1; //pci
125 m->bus_mcp55[0] = (sysconf.pci1234[0] >> 16) & 0xff;
128 dev = dev_find_slot(m->bus_mcp55[0], PCI_DEVFN(sysconf.sbdn + 0x06,0));
130 m->bus_mcp55[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
133 printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sysconf.sbdn + 0x06);
137 dev = dev_find_slot(m->bus_mcp55[0], PCI_DEVFN(sysconf.sbdn + 0x0a + i - 2 , 0));
139 m->bus_mcp55[i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
142 printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", m->bus_mcp55[0], sysconf.sbdn + 0x0a + i - 2 );
146 for(i=0; i< sysconf.hc_possible_num; i++) {
147 if(!(sysconf.pci1234[i] & 0x1) ) continue;
149 unsigned busn = (sysconf.pci1234[i] >> 16) & 0xff;
150 unsigned busn_max = (sysconf.pci1234[i] >> 24) & 0xff;
151 for (j = busn; j <= busn_max; j++)
153 if(m->bus_isa <= busn_max)
154 m->bus_isa = busn_max + 1;
155 printk_debug("i=%d bus range: [%x, %x] bus_isa=%x\n",i, busn, busn_max, m->bus_isa);
160 /*I/O APICs: APIC ID Version State Address*/
161 #if CONFIG_LOGICAL_CPUS==1
162 apicid_base = get_apicid_base(1);
164 apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
166 m->apicid_mcp55 = apicid_base+0;