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
  11 // Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
  12 //busnum is default
  13         unsigned char bus_isa;
  14         unsigned char bus_ck804_0; //1
  15         unsigned char bus_ck804_1; //2
  16         unsigned char bus_ck804_2; //3
  17         unsigned char bus_ck804_3; //4
  18         unsigned char bus_ck804_4; //5
  19         unsigned char bus_ck804_5; //6
  20         unsigned char bus_8131_0;  //7
  21         unsigned char bus_8131_1;  //8
  22         unsigned char bus_8131_2;  //9
  23         unsigned char bus_coproc_0;
  24         unsigned apicid_ck804;
  25         unsigned apicid_8131_1;
  26         unsigned apicid_8131_2;
  27
  28 unsigned sblk;
  29 unsigned pci1234[] =
  30 {        //Here you only need to set value in pci1234 for HT-IO that could be installed or not
  31          //You may need to preset pci1234 for HTIO board, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
  32         0x0000000,
  33         0x0000200,
  34         0x0000100,
  35 //        0x0000ff0,
  36 //        0x0000ff0,
  37 //        0x0000ff0,
  38 //        0x0000ff0,
  39 //        0x0000ff0
  40 };
  41 unsigned hc_possible_num;
  42 unsigned sbdn;
  43 unsigned hcdn[] =
  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
  67         device_t dev;
  68
  69         if(get_bus_conf_done==1) return; //do it only once
  70
  71         get_bus_conf_done = 1;
  72
  73         hc_possible_num = sizeof(pci1234)/sizeof(pci1234[0]);
  74
  75         get_sblk_pci1234();
  76
  77         sbdn = (hcdn[0] & 0xff); // first byte of first chain
  78
  79         sbdn3 = (hcdn[1] & 0xff); // first byte of second chain
  80
  81 //      bus_ck804_0 = node_link_to_bus(0, sblk);
  82         bus_ck804_0 = (pci1234[0] >> 16) & 0xff;
  83
  84         if(pci1234[2] & 1) {
  85                 bus_coproc_0 = (pci1234[2] >> 16) & 0xff;
  86                 coprocdn =  (hcdn[2] & 0xff);
  87         }
  88
  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 #if 0
  96                         bus_ck804_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
  97                         bus_ck804_2++;
  98 #else
  99                         bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 100                         bus_ck804_4++;
 101 #endif
 102                 }
 103                 else {
 104                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x09);
 105
 106                         bus_ck804_1 = 2;
 107 #if 0
 108                         bus_ck804_2 = 3;
 109 #else
 110                         bus_ck804_4 = 3;
 111 #endif
 112
 113                 }
 114 #if 0
 115                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0b,0));
 116                 if (dev) {
 117                         bus_ck804_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 118                         bus_ck804_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 119                         bus_ck804_3++;
 120                 }
 121                 else {
 122                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x0b);
 123
 124                         bus_ck804_3 = bus_ck804_2+1;
 125                 }
 126
 127                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0c,0));
 128                 if (dev) {
 129                         bus_ck804_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 130                         bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 131                         bus_ck804_4++;
 132                 }
 133                 else {
 134                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x0c);
 135
 136                         bus_ck804_4 = bus_ck804_3+1;
 137                 }
 138
 139 #endif
 140
 141                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0d,0));
 142                 if (dev) {
 143                         bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 144                         bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 145                         bus_ck804_5++;
 146                 }
 147                 else {
 148                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",sbdn + 0x0d);
 149
 150                         bus_ck804_5 = bus_ck804_4+1;
 151                 }
 152
 153                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn+ 0x0e,0));
 154                 if (dev) {
 155                         bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 156                         bus_8131_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 157                         bus_8131_0++;
 158                         bus_isa = bus_8131_0; // incase only one installed
 159                 }
 160                 else {
 161                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn+ 0x0e);
 162
 163                 }
 164
 165                 bus_8131_0 = (pci1234[1] >> 16) & 0xff;
 166
 167                 /* 8131-1 */
 168                 dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
 169                 if (dev) {
 170                         bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 171                         bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 172                         bus_8131_2++;
 173                 }
 174                 else {
 175                         printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
 176
 177                         bus_8131_1 = bus_8131_0+1;
 178                         bus_8131_2 = bus_8131_0+2;
 179                 }
 180                 /* 8131-2 */
 181                 dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,0));
 182                 if (dev) {
 183                         bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 184                         bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 185                         bus_isa++;
 186                 }
 187                 else {
 188                         printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
 189
 190                         bus_8131_2 = bus_8131_1+1;
 191                         bus_isa = bus_8131_1+2;
 192                 }
 193
 194
 195
 196 /*I/O APICs:    APIC ID Version State           Address*/
 197 #if CONFIG_LOGICAL_CPUS==1
 198         apicid_base = get_apicid_base(3);
 199 #else
 200         apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
 201 #endif
 202         apicid_ck804 = apicid_base+0;
 203         apicid_8131_1 = apicid_base+1;
 204         apicid_8131_2 = apicid_base+2;
 205 }