src/mainboard/tyan/s2895/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_ck804b_0;//a
  26         unsigned char bus_ck804b_1;//b
  27         unsigned char bus_ck804b_2;//c
  28         unsigned char bus_ck804b_3;//d
  29         unsigned char bus_ck804b_4;//e
  30         unsigned char bus_ck804b_5;//f
  31         unsigned apicid_ck804;
  32         unsigned apicid_8131_1;
  33         unsigned apicid_8131_2;
  34         unsigned apicid_ck804b;
  35
  36 unsigned pci1234x[] =
  37 {        //Here you only need to set value in pci1234 for HT-IO that could be installed or not
  38          //You may need to preset pci1234 for HTIO board, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
  39         0x0000ff0,
  40         0x0000ff0,
  41         0x0000ff0,
  42 //        0x0000ff0,
  43 //        0x0000ff0,
  44 //        0x0000ff0,
  45 //        0x0000ff0,
  46 //        0x0000ff0
  47 };
  48 unsigned hcdnx[] =
  49 { //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
  50         0x20202020,
  51         0x20202020,
  52         0x20202020,
  53 //        0x20202020,
  54 //        0x20202020,
  55 //        0x20202020,
  56 //        0x20202020,
  57 //        0x20202020,
  58 };
  59
  60 unsigned sbdn3;
  61 unsigned sbdnb;
  62
  63 extern void get_sblk_pci1234(void);
  64
  65 static unsigned get_bus_conf_done = 0;
  66
  67 void get_bus_conf(void)
  68 {
  69
  70         unsigned apicid_base;
  71         unsigned sbdn;
  72
  73         device_t dev;
  74         int i;
  75
  76         if(get_bus_conf_done==1) return; //do it only once
  77
  78         get_bus_conf_done = 1;
  79
  80         sysconf.hc_possible_num = ARRAY_SIZE(pci1234x);
  81         for(i=0;i<sysconf.hc_possible_num; i++) {
  82                 sysconf.pci1234[i] = pci1234x[i];
  83                 sysconf.hcdn[i] = hcdnx[i];
  84         }
  85
  86         get_sblk_pci1234();
  87
  88         sysconf.sbdn = (sysconf.hcdn[0] & 0xff); // first byte of first chain
  89         sbdn = sysconf.sbdn;
  90
  91         sbdn3 = (sysconf.hcdn[1] & 0xff);
  92
  93         sbdnb = (sysconf.hcdn[2] & 0xff); // first byte of second chain
  94
  95         bus_ck804_0 = (sysconf.pci1234[0] >> 16) & 0xff;
  96
  97                 /* CK804 */
  98                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn + 0x09,0));
  99                 if (dev) {
 100                         bus_ck804_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 101                         bus_ck804_5 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 102                         bus_ck804_5++;
 103                 }
 104                 else {
 105                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn + 0x09);
 106
 107                         bus_ck804_1 = 2;
 108                         bus_ck804_5 = 3;
 109                 }
 110
 111                 dev = dev_find_slot(bus_ck804_0, PCI_DEVFN(sbdn+ 0x0e,0));
 112                 if (dev) {
 113                         bus_ck804_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 114                 }
 115                 else {
 116                         printk_debug("ERROR - could not find PCI 1:%02x.0, using defaults\n", sbdn+ 0x0e);
 117                 }
 118
 119                 bus_8131_0 = (sysconf.pci1234[1] >> 16) & 0xff;
 120                 /* 8131-1 */
 121                 dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
 122                 if (dev) {
 123                         bus_8131_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 124                         bus_8131_2 = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 125                         bus_8131_2++;
 126                 }
 127                 else {
 128                         printk_debug("ERROR - could not find PCI %02x:01.0, using defaults\n", bus_8131_0);
 129
 130                         bus_8131_1 = bus_8131_0+1;
 131                         bus_8131_2 = bus_8131_0+2;
 132                 }
 133                 /* 8131-2 */
 134                 dev = dev_find_slot(bus_8131_0, PCI_DEVFN(sbdn3,0));
 135                 if (dev) {
 136                         bus_8131_2 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 137                         bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 138                         bus_isa++;
 139                 }
 140                 else {
 141                         printk_debug("ERROR - could not find PCI %02x:02.0, using defaults\n", bus_8131_0);
 142
 143                         bus_8131_2 = bus_8131_1+1;
 144                 }
 145
 146                 /* CK804b */
 147
 148         if(sysconf.pci1234[2] & 0x0f) { //if the second cpu is installed
 149                 bus_ck804b_0 = (sysconf.pci1234[2]>>16) & 0xff;
 150
 151                 dev = dev_find_slot(bus_ck804b_0, PCI_DEVFN(sbdnb + 0x0e,0));
 152                 if (dev) {
 153                         bus_ck804b_5 = pci_read_config8(dev, PCI_SECONDARY_BUS);
 154                         bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 155                         bus_isa++;
 156                 }
 157                 else {
 158                         printk_debug("ERROR - could not find PCI %02x:%02x.0, using defaults\n", bus_ck804b_0,sbdnb+0x0e);
 159                         bus_ck804b_5 = bus_ck804b_4+1;
 160                         bus_isa = bus_ck804b_5+1;
 161                 }
 162         }
 163
 164
 165 /*I/O APICs:    APIC ID Version State           Address*/
 166 #if CONFIG_LOGICAL_CPUS==1
 167         apicid_base = get_apicid_base(4);
 168 #else
 169         apicid_base = CONFIG_MAX_PHYSICAL_CPUS;
 170 #endif
 171         apicid_ck804 = apicid_base+0;
 172         apicid_8131_1 = apicid_base+1;
 173         apicid_8131_2 = apicid_base+2;
 174         apicid_ck804b = apicid_base+3;
 175 }