Please bear with me - another rename checkin. This qualifies as trivial, no
[coreboot.git] / src / mainboard / gigabyte / ga_2761gxdk / get_bus_conf.c
1 /*
2  * This file is part of the coreboot project.
3  *
4  * Copyright (C) 2007 AMD
5  * Written by Yinghai Lu <yinghailu@amd.com> for AMD.
6  * Copyright (C) 2007 Silicon Integrated Systems Corp. (SiS)
7  * Written by Morgan Tsai <my_tsai@sis.com> for SiS.
8  *
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.
13  *
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.
18  *
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
22  */
23
24 #include <console/console.h>
25 #include <device/pci.h>
26 #include <device/pci_ids.h>
27 #include <string.h>
28 #include <stdint.h>
29 #if CONFIG_LOGICAL_CPUS==1
30 #include <cpu/amd/dualcore.h>
31 #endif
32
33 #include <cpu/amd/amdk8_sysconf.h>
34
35
36 // Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
37 //busnum is default
38         unsigned char bus_isa;
39         unsigned char bus_sis966[8]; //1
40         unsigned apicid_sis966;
41
42
43 unsigned pci1234x[] =
44 {        //Here you only need to set value in pci1234 for HT-IO that could be installed or not
45          //You may need to preset pci1234 for HTIO board, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
46         0x0000ff0,
47 //        0x0000ff0,
48 //        0x0000ff0,
49 //        0x0000ff0,
50 //        0x0000ff0,
51 //        0x0000ff0,
52 //        0x0000ff0,
53 //        0x0000ff0
54 };
55 unsigned hcdnx[] =
56 { //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
57         0x20202020,
58 //      0x20202020,
59 //        0x20202020,
60 //        0x20202020,
61 //        0x20202020,
62 //        0x20202020,
63 //        0x20202020,
64 //        0x20202020,
65 };
66 unsigned bus_type[256];
67
68 extern void get_sblk_pci1234(void);
69
70 static unsigned get_bus_conf_done = 0;
71
72 void get_bus_conf(void)
73 {
74
75         unsigned apicid_base;
76         unsigned sbdn;
77
78         device_t dev;
79         int i, j;
80
81         if(get_bus_conf_done==1) return; //do it only once
82
83         get_bus_conf_done = 1;
84
85         sysconf.hc_possible_num = sizeof(pci1234x)/sizeof(pci1234x[0]);
86         for(i=0;i<sysconf.hc_possible_num; i++) {
87                 sysconf.pci1234[i] = pci1234x[i];
88                 sysconf.hcdn[i] = hcdnx[i];
89         }
90
91         get_sblk_pci1234();
92
93         sysconf.sbdn = (sysconf.hcdn[0] & 0xff); // first byte of first chain
94         sbdn = sysconf.sbdn;
95
96         for(i=0; i<8; i++) {
97                 bus_sis966[i] = 0;
98         }
99
100         for(i=0;i<256; i++) {
101                 bus_type[i] = 0;
102         }
103
104         bus_type[0] = 1; //pci
105
106         bus_sis966[0] = (sysconf.pci1234[0] >> 16) & 0xff;
107
108         bus_type[bus_sis966[0]] = 1;
109
110                 /* SIS966 */
111                 dev = dev_find_slot(bus_sis966[0], PCI_DEVFN(sbdn + 0x06,0));
112                 if (dev) {
113                         bus_sis966[1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
114                         bus_sis966[2] = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
115                         bus_sis966[2]++;
116                         for(j=bus_sis966[1];j<bus_sis966[2]; j++) bus_type[j] = 1;
117                 }
118                 else {
119                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x06);
120
121                         bus_sis966[1] = 2;
122                         bus_sis966[2] = 3;
123                 }
124
125                 for(i=2; i<8;i++) {
126                         dev = dev_find_slot(bus_sis966[0], PCI_DEVFN(sbdn + 0x0a + i - 2 , 0));
127                         if (dev) {
128                                 bus_sis966[i] = pci_read_config8(dev, PCI_SECONDARY_BUS);
129                                 bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
130                                 bus_isa++;
131                                 for(j=bus_sis966[i];j<bus_isa; j++) bus_type[j] = 1;
132                         }
133                         else {
134                                 printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_sis966[0], sbdn + 0x0a + i - 2 );
135                                 bus_isa = bus_sis966[i-1]+1;
136                         }
137                 }
138
139
140 /*I/O APICs:    APIC ID Version State           Address*/
141 #if CONFIG_LOGICAL_CPUS==1
142         apicid_base = get_apicid_base(1);
143 #else
144         apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
145 #endif
146         apicid_sis966 = apicid_base+0;
147
148 }