80 lines
2.1 KiB
C
80 lines
2.1 KiB
C
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/*
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* inteltool - dump all registers on an Intel CPU + chipset based system.
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*
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* Copyright (C) 2008 by coresystems GmbH
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* written by Stefan Reinauer <stepan@coresystems.de>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; version 2 of the License.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <stdlib.h>
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#include <stdint.h>
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#include <getopt.h>
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#include <sys/mman.h>
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#include <sys/io.h>
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#include <pci/pci.h>
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#include "inteltool.h"
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int print_rcba(struct pci_dev *sb)
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{
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int i, size = 0x4000;
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volatile uint8_t *rcba;
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uint32_t rcba_phys;
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printf("\n============= RCBA ==============\n\n");
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switch (sb->device_id) {
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case PCI_DEVICE_ID_INTEL_ICH7:
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case PCI_DEVICE_ID_INTEL_ICH7M:
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case PCI_DEVICE_ID_INTEL_ICH7DH:
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case PCI_DEVICE_ID_INTEL_ICH7MDH:
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rcba_phys = pci_read_long(sb, 0xf0) & 0xfffffffe;
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break;
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case PCI_DEVICE_ID_INTEL_ICH:
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case PCI_DEVICE_ID_INTEL_ICH0:
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case PCI_DEVICE_ID_INTEL_ICH4:
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case PCI_DEVICE_ID_INTEL_ICH4M:
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printf("This southbridge does not have RCBA.\n");
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return 1;
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default:
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printf("Error: Dumping RCBA on this southbridge is not (yet) supported.\n");
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return 1;
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}
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rcba = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
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fd_mem, (off_t) rcba_phys);
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if (rcba == MAP_FAILED) {
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perror("Error mapping RCBA");
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exit(1);
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}
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printf("RCBA = 0x%08x (MEM)\n\n", rcba_phys);
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for (i = 0; i < size; i += 4) {
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if (*(uint32_t *)(rcba + i))
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printf("0x%04x: 0x%08x\n", i, *(uint32_t *)(rcba + i));
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}
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munmap((void *)rcba, size);
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return 0;
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}
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