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author | Stefan Reinauer <stepan@coresystems.de> | 2008-08-20 13:41:24 +0000 |
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committer | Stefan Reinauer <stepan@openbios.org> | 2008-08-20 13:41:24 +0000 |
commit | 2319027d7e3a9b44110794a553b10a554fed1102 (patch) | |
tree | 7cb5bffd1c14b6363fb17019bdd4826fd9ec726c /util/inteltool/memory.c | |
parent | eb02f45e6ff2a6870353816712ff6271250dc7ee (diff) | |
download | coreboot-2319027d7e3a9b44110794a553b10a554fed1102.tar.xz |
split the one file, as the several printing functions will continue to grow
immensly when they know more systems / cpus / chipsets
Signed-off-by: Stefan Reinauer <stepan@coresystems.de>
Acked-by: Stefan Reinauer <stepan@coresystems.de>
git-svn-id: svn://svn.coreboot.org/coreboot/trunk@3531 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'util/inteltool/memory.c')
-rw-r--r-- | util/inteltool/memory.c | 69 |
1 files changed, 69 insertions, 0 deletions
diff --git a/util/inteltool/memory.c b/util/inteltool/memory.c new file mode 100644 index 0000000000..24a9f7c670 --- /dev/null +++ b/util/inteltool/memory.c @@ -0,0 +1,69 @@ +/* + * inteltool - dump all registers on an Intel CPU + chipset based system. + * + * Copyright (C) 2008 by coresystems GmbH + * + * 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 <stdio.h> +#include <stdlib.h> +#include <sys/mman.h> + +#include "inteltool.h" + +/* + * (G)MCH MMIO Config Space + */ +int print_mchbar(struct pci_dev *nb) +{ + int i, size = (16 * 1024); + volatile uint8_t *mchbar; + uint32_t mchbar_phys; + + printf("\n============= MCHBAR ============\n\n"); + + switch (nb->device_id) { + case PCI_DEVICE_ID_INTEL_82945GM: + mchbar_phys = pci_read_long(nb, 0x44) & 0xfffffffe; + break; + case 0x1234: // Dummy for non-existent functionality + printf("This northbrigde does not have MCHBAR.\n"); + return 1; + default: + printf("Error: Dumping MCHBAR on this northbridge is not (yet) supported.\n"); + return 1; + } + + mchbar = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, + fd_mem, (off_t) mchbar_phys); + + if (mchbar == MAP_FAILED) { + perror("Error mapping MCHBAR"); + exit(1); + } + + printf("MCHBAR = 0x%08x (MEM)\n\n", mchbar_phys); + + for (i = 0; i < size; i += 4) { + if (*(uint32_t *)(mchbar + i)) + printf("0x%04x: 0x%08x\n", i, *(uint32_t *)(mchbar+i)); + } + + munmap((void *)mchbar, size); + return 0; +} + + |