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 apicid_ck804;
  24         unsigned apicid_8131_1;
  25         unsigned apicid_8131_2;
  26
  27 unsigned sblk;
  28 unsigned pci1234[] =
  29 {        //Here you only need to set value in pci1234 for HT-IO that could be installed or not
  30          //You may need to preset pci1234 for HTIO board, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
  31         0x0000ff0,
  32         0x0000ff0,
  33 //        0x0000ff0,
  34 //        0x0000ff0,
  35 //        0x0000ff0,
  36 //        0x0000ff0,
  37 //        0x0000ff0,
  38 //        0x0000ff0
  39 };
  40 unsigned hc_possible_num;
  41 unsigned sbdn;
  42 unsigned hcdn[] =
  43 { //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
  44         0x20202020,
  45         0x20202020,
  46 //        0x20202020,
  47 //        0x20202020,
  48 //        0x20202020,
  49 //        0x20202020,
  50 //        0x20202020,
  51 //        0x20202020,
  52 };
  53
  54 unsigned sbdn3;
  55
  56 extern void get_sblk_pci1234(void);
  57
  58 static unsigned get_bus_conf_done = 0;
  59
  60 void get_bus_conf(void)
  61 {
  62
  63         unsigned apicid_base;
  64
  65         device_t dev;
  66
  67         if(get_bus_conf_done==1) return; //do it only once
  68
  69         get_bus_conf_done = 1;
  70
  71         hc_possible_num = sizeof(pci1234)/sizeof(pci1234[0]);
  72
  73         get_sblk_pci1234();
  74
  75         sbdn = (hcdn[0] & 0xff); // first byte of first chain
  76
  77         sbdn3 = (hcdn[1] & 0xff); // first byte of second chain
  78
  79 //      bus_ck804_0 = node_link_to_bus(0, sblk);
  80         bus_ck804_0 = (pci1234[0] >> 16) & 0xff;
  81
  82
  83                 /* CK804 */
  84                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x09,0));
  85                 if (dev) {
  86                         bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
  87 #if 0
  88                         bus_ck804_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
  89                         bus_ck804_2++;
  90 #else
  91                         bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
  92                         bus_ck804_4++;
  93 #endif
  94                 }
  95                 else {
  96                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x09);
  97
  98                         bus_ck804_1 = 2;
  99 #if 0
 100                         bus_ck804_2 = 3;
 101 #else
 102                         bus_ck804_4 = 3;
 103 #endif
 104
 105                 }
 106 #if 0
 107                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0b,0));
 108                 if (dev) {
 109                         bus_ck804_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 110                         bus_ck804_3 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 111                         bus_ck804_3++;
 112                 }
 113                 else {
 114                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x0b);
 115
 116                         bus_ck804_3 = bus_ck804_2+1;
 117                 }
 118
 119                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0c,0));
 120                 if (dev) {
 121                         bus_ck804_3 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 122                         bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 123                         bus_ck804_4++;
 124                 }
 125                 else {
 126                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x0c);
 127
 128                         bus_ck804_4 = bus_ck804_3+1;
 129                 }
 130
 131 #endif
 132
 133                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0d,0));
 134                 if (dev) {
 135                         bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 136                         bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 137                         bus_ck804_5++;
 138                 }
 139                 else {
 140                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n",sbdn + 0x0d);
 141
 142                         bus_ck804_5 = bus_ck804_4+1;
 143                 }
 144
 145                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn+ 0x0e,0));
 146                 if (dev) {
 147                         bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 148                         bus_8131_0 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 149                         bus_8131_0++;
 150                         bus_isa = bus_8131_0; // incase only one installed
 151                 }
 152                 else {
 153                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn+ 0x0e);
 154
 155                         bus_8131_0 = bus_ck804_5+1;
 156                 }
 157
 158                 /* 8131-1 */
 159                 dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
 160                 if (dev) {
 161                         bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 162                         bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 163                         bus_8131_2++;
 164                 }
 165                 else {
 166                         printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
 167
 168                         bus_8131_1 = bus_8131_0+1;
 169                         bus_8131_2 = bus_8131_0+2;
 170                 }
 171                 /* 8131-2 */
 172                 dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,0));
 173                 if (dev) {
 174                         bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 175                         bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 176                         bus_isa++;
 177                 }
 178                 else {
 179                         printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
 180
 181                         bus_8131_2 = bus_8131_1+1;
 182                         bus_isa = bus_8131_1+2;
 183                 }
 184
 185
 186
 187 /*I/O APICs:    APIC ID Version State           Address*/
 188 #if CONFIG_LOGICAL_CPUS==1
 189         apicid_base = get_apicid_base(3);
 190 #else
 191         apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
 192 #endif
 193         apicid_ck804 = apicid_base+0;
 194         apicid_8131_1 = apicid_base+1;
 195         apicid_8131_2 = apicid_base+2;
 196 }