src/mainboard/tyan/s2891/get_bus_conf.c

   1 #include <console/console.h>
   2 #include <device/pci.h>
   3 #include <device/pci_ids.h>
   4 #include <string.h>
   5 #include <stdint.h>
   6 #if CONFIG_LOGICAL_CPUS==1
   7 #include <cpu/amd/dualcore.h>
   8 #endif
   9
  10 #include <cpu/amd/amdk8_sysconf.h>
  11 #include <stdlib.h>
  12
  13 // Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
  14 //busnum is default
  15         unsigned char bus_isa;
  16         unsigned char bus_ck804_0; //1
  17         unsigned char bus_ck804_1; //2
  18         unsigned char bus_ck804_2; //3
  19         unsigned char bus_ck804_3; //4
  20         unsigned char bus_ck804_4; //5
  21         unsigned char bus_ck804_5; //6
  22         unsigned char bus_8131_0;  //7
  23         unsigned char bus_8131_1;  //8
  24         unsigned char bus_8131_2;  //9
  25         unsigned char bus_coproc_0;
  26         unsigned apicid_ck804;
  27         unsigned apicid_8131_1;
  28         unsigned apicid_8131_2;
  29
  30
  31 unsigned pci1234x[] =
  32 {        //Here you only need to set value in pci1234 for HT-IO that could be installed or not
  33          //You may need to preset pci1234 for HTIO board, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
  34         0x0000000,
  35         0x0000200,
  36         0x0000100,
  37 //        0x0000ff0,
  38 //        0x0000ff0,
  39 //        0x0000ff0,
  40 //        0x0000ff0,
  41 //        0x0000ff0
  42 };
  43 unsigned hcdnx[] =
  44 { //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
  45         0x20202020,
  46         0x20202020,
  47         0x20202020,
  48 //        0x20202020,
  49 //        0x20202020,
  50 //        0x20202020,
  51 //        0x20202020,
  52 //        0x20202020,
  53 };
  54
  55 unsigned sbdn3;
  56 unsigned coprocdn;
  57
  58 extern void get_sblk_pci1234(void);
  59
  60 static unsigned get_bus_conf_done = 0;
  61
  62 void get_bus_conf(void)
  63 {
  64
  65         unsigned apicid_base;
  66         unsigned sbdn;
  67
  68         device_t dev;
  69         int i;
  70
  71         if(get_bus_conf_done==1) return; //do it only once
  72
  73         get_bus_conf_done = 1;
  74
  75         sysconf.hc_possible_num = ARRAY_SIZE(pci1234x);
  76         for(i=0;i<sysconf.hc_possible_num; i++) {
  77                 sysconf.pci1234[i] = pci1234x[i];
  78                 sysconf.hcdn[i] = hcdnx[i];
  79         }
  80
  81         get_sblk_pci1234();
  82
  83         sysconf.sbdn = (sysconf.hcdn[0] & 0xff); // first byte of first chain
  84         sbdn = sysconf.sbdn;
  85
  86         sbdn3 = (sysconf.hcdn[1] & 0xff); // first byte of second chain
  87
  88         bus_ck804_0 = (sysconf.pci1234[0] >> 16) & 0xff;
  89
  90
  91                 /* CK804 */
  92                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x09,0));
  93                 if (dev) {
  94                         bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
  95                         bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
  96                         bus_ck804_4++;
  97                 }
  98                 else {
  99                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x09);
 100
 101                         bus_ck804_1 = 2;
 102                         bus_ck804_4 = 3;
 103                 }
 104
 105                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0d,0));
 106                 if (dev) {
 107                         bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 108                         bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 109                         bus_ck804_5++;
 110                 }
 111                 else {
 112                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",sbdn + 0x0d);
 113
 114                         bus_ck804_5 = bus_ck804_4+1;
 115                 }
 116
 117                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn+ 0x0e,0));
 118                 if (dev) {
 119                         bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 120                         bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 121                         bus_isa++;
 122                 }
 123                 else {
 124                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn+ 0x0e);
 125                 }
 126
 127                 bus_8131_0 = (sysconf.pci1234[1] >> 16) & 0xff;
 128                 /* 8131-1 */
 129                 dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
 130                 if (dev) {
 131                         bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 132                         bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 133                         bus_8131_2++;
 134                 }
 135                 else {
 136                         printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
 137
 138                         bus_8131_1 = bus_8131_0+1;
 139                         bus_8131_2 = bus_8131_0+2;
 140                 }
 141                 /* 8131-2 */
 142                 dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,0));
 143                 if (dev) {
 144                         bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 145                         bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 146                         bus_isa++;
 147                 }
 148                 else {
 149                         printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
 150
 151                         bus_8131_2 = bus_8131_1+1;
 152                         bus_isa = bus_8131_1+2;
 153                 }
 154
 155                 if(sysconf.pci1234[2] & 1) {
 156                         bus_coproc_0 = (sysconf.pci1234[2] >> 16) & 0xff;
 157                         coprocdn =  (sysconf.hcdn[2] & 0xff);
 158                 }
 159
 160
 161 /*I/O APICs:    APIC ID Version State           Address*/
 162 #if CONFIG_LOGICAL_CPUS==1
 163         apicid_base = get_apicid_base(3);
 164 #else
 165         apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
 166 #endif
 167         apicid_ck804 = apicid_base+0;
 168         apicid_8131_1 = apicid_base+1;
 169         apicid_8131_2 = apicid_base+2;
 170 }