diff options
Diffstat (limited to 'util/inteltool/rootcmplx.c')
-rw-r--r-- | util/inteltool/rootcmplx.c | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/util/inteltool/rootcmplx.c b/util/inteltool/rootcmplx.c new file mode 100644 index 000000000000..7e2b665ce6ad --- /dev/null +++ b/util/inteltool/rootcmplx.c @@ -0,0 +1,79 @@ +/* + * inteltool - dump all registers on an Intel CPU + chipset based system. + * + * Copyright (C) 2008 by coresystems GmbH + * written by Stefan Reinauer <stepan@coresystems.de> + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; version 2 of the License. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. + */ + +#include <errno.h> +#include <fcntl.h> +#include <unistd.h> +#include <stdio.h> +#include <string.h> +#include <stdlib.h> +#include <stdint.h> +#include <getopt.h> +#include <sys/mman.h> +#include <sys/io.h> +#include <pci/pci.h> + +#include "inteltool.h" + +int print_rcba(struct pci_dev *sb) +{ + int i, size = 0x4000; + volatile uint8_t *rcba; + uint32_t rcba_phys; + + printf("\n============= RCBA ==============\n\n"); + + switch (sb->device_id) { + case PCI_DEVICE_ID_INTEL_ICH7: + case PCI_DEVICE_ID_INTEL_ICH7M: + case PCI_DEVICE_ID_INTEL_ICH7DH: + case PCI_DEVICE_ID_INTEL_ICH7MDH: + rcba_phys = pci_read_long(sb, 0xf0) & 0xfffffffe; + break; + case PCI_DEVICE_ID_INTEL_ICH: + case PCI_DEVICE_ID_INTEL_ICH0: + case PCI_DEVICE_ID_INTEL_ICH4: + case PCI_DEVICE_ID_INTEL_ICH4M: + printf("This southbridge does not have RCBA.\n"); + return 1; + default: + printf("Error: Dumping RCBA on this southbridge is not (yet) supported.\n"); + return 1; + } + + rcba = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, + fd_mem, (off_t) rcba_phys); + + if (rcba == MAP_FAILED) { + perror("Error mapping RCBA"); + exit(1); + } + + printf("RCBA = 0x%08x (MEM)\n\n", rcba_phys); + + for (i = 0; i < size; i += 4) { + if (*(uint32_t *)(rcba + i)) + printf("0x%04x: 0x%08x\n", i, *(uint32_t *)(rcba + i)); + } + + munmap((void *)rcba, size); + return 0; +} + |