src/mainboard/agami/aruma/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 #include <stdlib.h>
   7 #if CONFIG_LOGICAL_CPUS==1
   8 #include <cpu/amd/dualcore.h>
   9 #endif
  10
  11
  12 // Global variables for MB layouts and these will be shared by irqtable mptable and acpi_tables
  13 //busnum is default
  14 unsigned char bus_isa = 7;
  15 unsigned char bus_8111_0 = 1;
  16 unsigned char bus_8111_1 = 4;
  17 unsigned char bus_8131[7][3];   // another 6 8131
  18 unsigned apicid_8111;
  19 unsigned apicid_8131[7][2];
  20
  21 unsigned sblk;
  22 unsigned pci1234[] = {          //Here you only need to set value in pci1234 for HT-IO that could be installed or not
  23         //You may need to preset pci1234 for HTIO board, please refer to src/northbridge/amd/amdk8/get_sblk_pci1234.c for detail
  24         0x0000ff0,
  25         0x0000f10,
  26         0x0000f20,
  27         0x0000f30,
  28 //        0x0000ff0,
  29 //        0x0000ff0,
  30 //        0x0000ff0,
  31 //        0x0000ff0
  32 };
  33 unsigned hc_possible_num;
  34 unsigned sbdn;
  35 unsigned hcdn[] = {             //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
  36         0x20202020,
  37         0x20202020,
  38         0x20202020,
  39         0x20202020,
  40 //        0x20202020,
  41 //        0x20202020,
  42 //        0x20202020,
  43 //        0x20202020,
  44 };
  45
  46 unsigned sbdnx[7];              // for all 8131
  47
  48 extern void get_sblk_pci1234(void);
  49
  50 static unsigned get_bus_conf_done = 0;
  51
  52 void get_bus_conf(void)
  53 {
  54
  55         unsigned apicid_base;
  56
  57         device_t dev;
  58
  59         int i;
  60
  61         if (get_bus_conf_done == 1)
  62                 return;         //do it only once
  63
  64         get_bus_conf_done = 1;
  65
  66         hc_possible_num = ARRAY_SIZE(pci1234);
  67
  68         get_sblk_pci1234();
  69
  70
  71         sbdn = ((hcdn[0] >> 8) & 0xff); // first byte of first chain
  72         sbdnx[0] = (hcdn[0] & 0xff);
  73
  74         for (i = 0; i < hc_possible_num; i++) {
  75                 sbdnx[i * 2 + 1] = hcdn[i] & 0xff;
  76                 sbdnx[i * 2 + 2] = (hcdn[i] >> 8) & 0xff;
  77         }
  78
  79         bus_8131[0][0] = (pci1234[0] >> 16) & 0xff;
  80         bus_8111_0 = bus_8131[0][0];
  81
  82         /* 8111 */
  83         dev = dev_find_slot(bus_8111_0, PCI_DEVFN(sbdn, 0));
  84         if (dev) {
  85                 bus_8111_1 = pci_read_config8(dev, PCI_SECONDARY_BUS);
  86                 bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
  87                 bus_isa++;
  88 //              printk_debug("bus_isa=%d\n",bus_isa);
  89         } else {
  90                 printk_debug
  91                     ("ERROR - could not find PCI %02x:03.0, using defaults\n",
  92                      bus_8111_0);
  93         }
  94
  95
  96         /* 8131-1 */
  97         bus_8131[0][0] = 1;
  98         dev = dev_find_slot(bus_8131[0][0], PCI_DEVFN(sbdnx[1], 0));
  99         if (dev) {
 100                 bus_8131[0][1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 101         } else {
 102                 printk_debug
 103                     ("ERROR - could not find PCI %02x:01.0, using defaults\n",
 104                      bus_8131[0][0]);
 105         }
 106
 107
 108         /* 8132-2 */
 109         dev = dev_find_slot(bus_8131[0][0], PCI_DEVFN(sbdnx[1] + 1, 0));
 110         if (dev) {
 111                 bus_8131[0][2] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 112                 bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 113                 bus_isa++;
 114         } else {
 115                 printk_debug
 116                     ("ERROR - could not find PCI %02x:02.0, using defaults\n",
 117                      bus_8131[0][0]);
 118         }
 119
 120         apicid_base = get_apicid_base(15);
 121
 122         apicid_8111 = apicid_base++;
 123
 124         apicid_8131[0][0] = apicid_base++;
 125
 126         apicid_8131[0][1] = apicid_base++;
 127
 128
 129         /* HT chain 1 */
 130         for (i = 1; i < 4; i++) {
 131                 if (pci1234[i] & 0x1) {
 132                         int j = (i - 1) * 2 + 1;
 133                         bus_8131[j][0] = (pci1234[i] >> 16) & 0xff;
 134                         /* 8131 */
 135                         dev = dev_find_slot(bus_8131[j][0], PCI_DEVFN(sbdnx[j], 0));
 136                         if (dev) {
 137                                 bus_8131[j][1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 138                         }
 139                         apicid_8131[j][0] = apicid_base++;
 140                         dev = dev_find_slot(bus_8131[j][0], PCI_DEVFN(sbdnx[j] + 1, 0));
 141                         if (dev) {
 142                                 bus_8131[j][2] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 143                         }
 144                         apicid_8131[j][1] = apicid_base++;
 145
 146                         bus_8131[j + 1][0] = bus_8131[j][0];
 147                         /* 8131 */
 148                         dev = dev_find_slot(bus_8131[j + 1][0], PCI_DEVFN(sbdnx[j + 1], 0));
 149                         if (dev) {
 150                                 bus_8131[j + 1][1] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 151                         }
 152                         apicid_8131[j + 1][0] = apicid_base++;
 153
 154                         dev = dev_find_slot(bus_8131[i + 1][0], PCI_DEVFN(sbdnx[j + 1] + 1, 0));
 155                         if (dev) {
 156                                 bus_8131[j + 1][2] = pci_read_config8(dev, PCI_SECONDARY_BUS);
 157                                 bus_isa = pci_read_config8(dev, PCI_SUBORDINATE_BUS);
 158                                 bus_isa++;
 159
 160                         }
 161                         apicid_8131[j + 1][0] = apicid_base++;
 162                 }
 163         }
 164 }