src/northbridge/intel/i945/debug.c

   1 /*
   2  * This file is part of the coreboot project.
   3  *
   4  * Copyright (C) 2007-2008 coresystems GmbH
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License as
   8  * published by the Free Software Foundation; version 2 of
   9  * the License.
  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
  17 #include <spd.h>
  18 #include <lib.h>
  19 #include <arch/io.h>
  20 #include <device/pci_def.h>
  21 #include <console/console.h>
  22 #include "i945.h"
  23
  24 void print_pci_devices(void)
  25 {
  26         device_t dev;
  27         for(dev = PCI_DEV(0, 0, 0);
  28                 dev <= PCI_DEV(0, 0x1f, 0x7);
  29                 dev += PCI_DEV(0,0,1)) {
  30                 uint32_t id;
  31                 id = pci_read_config32(dev, PCI_VENDOR_ID);
  32                 if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
  33                         (((id >> 16) & 0xffff) == 0xffff) ||
  34                         (((id >> 16) & 0xffff) == 0x0000)) {
  35                         continue;
  36                 }
  37                 printk(BIOS_DEBUG, "PCI: %02x:%02x.%02x", (dev >> 20) & 0xff,
  38                         (dev >> 15) & 0x1f, (dev >> 12) & 7);
  39                 printk(BIOS_DEBUG, " [%04x:%04x]\n", id &0xffff, id >> 16);
  40         }
  41 }
  42
  43 void dump_pci_device(unsigned dev)
  44 {
  45         int i;
  46
  47         printk(BIOS_DEBUG, "PCI: %02x:%02x.%02x\n", (dev >> 20) & 0xff, (dev >> 15) & 0x1f, (dev >> 12) & 7);
  48
  49         for(i = 0; i <= 255; i++) {
  50                 unsigned char val;
  51                 if ((i & 0x0f) == 0) {
  52                         printk(BIOS_DEBUG, "%02x:", i);
  53                 }
  54                 val = pci_read_config8(dev, i);
  55                 printk(BIOS_DEBUG, " %02x", val);
  56                 if ((i & 0x0f) == 0x0f) {
  57                         printk(BIOS_DEBUG, "\n");
  58                 }
  59         }
  60 }
  61
  62 void dump_pci_devices(void)
  63 {
  64         device_t dev;
  65         for(dev = PCI_DEV(0, 0, 0);
  66                 dev <= PCI_DEV(0, 0x1f, 0x7);
  67                 dev += PCI_DEV(0,0,1)) {
  68                 uint32_t id;
  69                 id = pci_read_config32(dev, PCI_VENDOR_ID);
  70                 if (((id & 0xffff) == 0x0000) || ((id & 0xffff) == 0xffff) ||
  71                         (((id >> 16) & 0xffff) == 0xffff) ||
  72                         (((id >> 16) & 0xffff) == 0x0000)) {
  73                         continue;
  74                 }
  75                 dump_pci_device(dev);
  76         }
  77 }
  78
  79 void dump_spd_registers(void)
  80 {
  81         unsigned device;
  82         device = DIMM0;
  83         while(device <= DIMM3) {
  84                 int status = 0;
  85                 int i;
  86                 printk(BIOS_DEBUG, "\ndimm %02x", device);
  87
  88                 for(i = 0; (i < 256) ; i++) {
  89                         if ((i % 16) == 0) {
  90                                 printk(BIOS_DEBUG, "\n%02x: ", i);
  91                         }
  92                         status = smbus_read_byte(device, i);
  93                         if (status < 0) {
  94                                  printk(BIOS_DEBUG, "bad device: %02x\n", -status);
  95                                  break;
  96                         }
  97                         printk(BIOS_DEBUG, "%02x ", status);
  98                 }
  99                 device++;
 100                 printk(BIOS_DEBUG, "\n");
 101         }
 102 }
 103
 104 void dump_mem(unsigned start, unsigned end)
 105 {
 106         unsigned i;
 107         printk(BIOS_DEBUG, "dump_mem:");
 108         for(i=start;i<end;i++) {
 109                 if((i & 0xf)==0) {
 110                         printk(BIOS_DEBUG, "\n%08x:", i);
 111                 }
 112                 printk(BIOS_DEBUG, " %02x", (unsigned char)*((unsigned char *)i));
 113         }
 114         printk(BIOS_DEBUG, "\n");
 115  }