src/northbridge/intel/i855/debug.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2003 Ronald G. Minnich
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301 USA
  19  */
  20
  21 static void print_debug_pci_dev(unsigned dev)
  22 {
  23         print_debug("PCI: ");
  24         print_debug_hex8((dev >> 20) & 0xff);
  25         print_debug_char(':');
  26         print_debug_hex8((dev >> 15) & 0x1f);
  27         print_debug_char('.');
  28         print_debug_hex8((dev >> 12) & 0x07);
  29 }
  30
  31 static inline void print_pci_devices(void)
  32 {
  33         device_t dev;
  34         for(dev = PCI_DEV(0, 0, 0);
  35                 dev <= PCI_DEV(0, 0x1f, 0x7);
  36                 dev += PCI_DEV(0,0,1)) {
  37                 uint32_t id;
  38                 id = pci_read_config32(dev, PCI_VENDOR_ID);
  39                 if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
  40                         (((id >> 16) & 0xffff) == 0xffff) ||
  41                         (((id >> 16) & 0xffff) == 0x0000)) {
  42                         continue;
  43                 }
  44                 print_debug_pci_dev(dev);
  45                 print_debug("\n");
  46         }
  47 }
  48
  49 static void dump_pci_device(unsigned dev)
  50 {
  51         int i;
  52         print_debug_pci_dev(dev);
  53         print_debug("\n");
  54
  55         for(i = 0; i <= 255; i++) {
  56                 unsigned char val;
  57                 if ((i & 0x0f) == 0) {
  58                         print_debug_hex8(i);
  59                         print_debug_char(':');
  60                 }
  61                 val = pci_read_config8(dev, i);
  62                 print_debug_char(' ');
  63                 print_debug_hex8(val);
  64                 if ((i & 0x0f) == 0x0f) {
  65                         print_debug("\n");
  66                 }
  67         }
  68 }
  69
  70 static inline void dump_pci_devices(void)
  71 {
  72         device_t dev;
  73         for(dev = PCI_DEV(0, 0, 0);
  74                 dev <= PCI_DEV(0, 0x1f, 0x7);
  75                 dev += PCI_DEV(0,0,1)) {
  76                 uint32_t id;
  77                 id = pci_read_config32(dev, PCI_VENDOR_ID);
  78                 if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
  79                         (((id >> 16) & 0xffff) == 0xffff) ||
  80                         (((id >> 16) & 0xffff) == 0x0000)) {
  81                         continue;
  82                 }
  83                 dump_pci_device(dev);
  84         }
  85 }
  86
  87 static inline void dump_spd_registers(const struct mem_controller *ctrl)
  88 {
  89         int i;
  90         print_debug("\n");
  91         for(i = 0; i < 2; i++) {
  92                 unsigned device;
  93                 device = ctrl->channel0[i];
  94                 if (device) {
  95                         int j;
  96                         print_debug("dimm: ");
  97                         print_debug_hex8(i);
  98                         print_debug(".0: ");
  99                         print_debug_hex8(device);
 100                         for(j = 0; j < 256; j++) {
 101                                 int status;
 102                                 unsigned char byte;
 103                                 if ((j & 0xf) == 0) {
 104                                         print_debug("\n");
 105                                         print_debug_hex8(j);
 106                                         print_debug(": ");
 107                                 }
 108                                 status = smbus_read_byte(device, j);
 109                                 if (status < 0) {
 110                                         print_debug("bad device\n");
 111                                         break;
 112                                 }
 113                                 byte = status & 0xff;
 114                                 print_debug_hex8(byte);
 115                                 print_debug_char(' ');
 116                         }
 117                         print_debug("\n");
 118                 }
 119         }
 120 }
 121
 122 static inline void dump_smbus_registers(void)
 123 {
 124         int i;
 125         print_debug("\n");
 126         for(i = 1; i < 0x80; i++) {
 127                 unsigned device;
 128                 device = i;
 129                 int j;
 130                 print_debug("smbus: ");
 131                 print_debug_hex8(device);
 132                 for(j = 0; j < 256; j++) {
 133                         int status;
 134                         unsigned char byte;
 135                         if ((j & 0xf) == 0) {
 136                                 print_debug("\n");
 137                                 print_debug_hex8(j);
 138                                 print_debug(": ");
 139                         }
 140                         status = smbus_read_byte(device, j);
 141                         if (status < 0) {
 142                                 print_debug("bad device\n");
 143                                 break;
 144                         }
 145                         byte = status & 0xff;
 146                         print_debug_hex8(byte);
 147                         print_debug_char(' ');
 148                 }
 149                 print_debug("\n");
 150         }
 151 }