src/mainboard/tyan/s2892/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 apicid_ck804;
  26         unsigned apicid_8131_1;
  27         unsigned apicid_8131_2;
  28
  29 unsigned pci1234x[] =
  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         0x0000ff0,
  33         0x0000ff0,
  34 //        0x0000ff0,
  35 //        0x0000ff0,
  36 //        0x0000ff0,
  37 //        0x0000ff0,
  38 //        0x0000ff0,
  39 //        0x0000ff0
  40 };
  41 unsigned hcdnx[] =
  42 { //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
  43         0x20202020,
  44         0x20202020,
  45 //        0x20202020,
  46 //        0x20202020,
  47 //        0x20202020,
  48 //        0x20202020,
  49 //        0x20202020,
  50 //        0x20202020,
  51 };
  52
  53 unsigned sbdn3;
  54
  55 extern void get_sblk_pci1234(void);
  56
  57 static unsigned get_bus_conf_done = 0;
  58
  59 void get_bus_conf(void)
  60 {
  61
  62         unsigned apicid_base;
  63         unsigned sbdn;
  64
  65         device_t dev;
  66         int i;
  67
  68         if(get_bus_conf_done==1) return; //do it only once
  69
  70         get_bus_conf_done = 1;
  71
  72         sysconf.hc_possible_num = ARRAY_SIZE(pci1234x);
  73         for(i=0;i<sysconf.hc_possible_num; i++) {
  74                 sysconf.pci1234[i] = pci1234x[i];
  75                 sysconf.hcdn[i] = hcdnx[i];
  76         }
  77
  78         get_sblk_pci1234();
  79
  80         sysconf.sbdn = (sysconf.hcdn[0] & 0xff); // first byte of first chain
  81         sbdn = sysconf.sbdn;
  82
  83         sbdn3 = (sysconf.hcdn[1] & 0xff); // first byte of second chain
  84
  85         bus_ck804_0 = (sysconf.pci1234[0] >> 16) & 0xff;
  86
  87
  88                 /* CK804 */
  89                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x09,0));
  90                 if (dev) {
  91                         bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
  92                         bus_ck804_4 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
  93                         bus_ck804_4++;
  94                 }
  95                 else {
  96                         printk(BIOS_DEBUG, "ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x09);
  97
  98                         bus_ck804_1 = 2;
  99                         bus_ck804_4 = 3;
 100                 }
 101
 102                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x0d,0));
 103                 if (dev) {
 104                         bus_ck804_4 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 105                         bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 106                         bus_ck804_5++;
 107                 }
 108                 else {
 109                         printk(BIOS_DEBUG, "ERROR - could not find PCI 1:%02x.0, using defaults\n",sbdn + 0x0d);
 110
 111                         bus_ck804_5 = bus_ck804_4+1;
 112                 }
 113
 114                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn+ 0x0e,0));
 115                 if (dev) {
 116                         bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 117                         bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 118                         bus_isa++;
 119                 }
 120                 else {
 121                         printk(BIOS_DEBUG, "ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn+ 0x0e);
 122                 }
 123
 124                 bus_8131_0 = (sysconf.pci1234[1] >> 16) & 0xff;
 125                 /* 8131-1 */
 126                 dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
 127                 if (dev) {
 128                         bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 129                         bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 130                         bus_8131_2++;
 131                 }
 132                 else {
 133                         printk(BIOS_DEBUG, "ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
 134
 135                         bus_8131_1 = bus_8131_0+1;
 136                         bus_8131_2 = bus_8131_0+2;
 137                 }
 138                 /* 8131-2 */
 139                 dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3+1,0));
 140                 if (dev) {
 141                         bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 142                         bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 143                         bus_isa++;
 144                 }
 145                 else {
 146                         printk(BIOS_DEBUG, "ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
 147
 148                         bus_8131_2 = bus_8131_1+1;
 149                         bus_isa = bus_8131_1+2;
 150                 }
 151
 152
 153
 154 /*I/O APICs:    APIC ID Version State           Address*/
 155 #if CONFIG_LOGICAL_CPUS==1
 156         apicid_base = get_apicid_base(3);
 157 #else
 158         apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
 159 #endif
 160         apicid_ck804 = apicid_base+0;
 161         apicid_8131_1 = apicid_base+1;
 162         apicid_8131_2 = apicid_base+2;
 163 }