548 lines
14 KiB
C
548 lines
14 KiB
C
/*
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* This file is part of the flashrom project.
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*
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* Copyright (C) 2000 Silicon Integrated System Corporation
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* Copyright (C) 2004 Tyan Corp <yhlu@tyan.com>
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* Copyright (C) 2005-2007 coresystems GmbH
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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; either version 2 of the License, or
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* (at your option) any later version.
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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., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include <errno.h>
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#include <fcntl.h>
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#include <sys/mman.h>
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#include <sys/types.h>
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#include <sys/stat.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 <getopt.h>
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#include <pci/pci.h>
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/* for iopl */
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#if defined (__sun) && (defined(__i386) || defined(__amd64))
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#include <strings.h>
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#include <sys/sysi86.h>
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#include <sys/psw.h>
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#include <asm/sunddi.h>
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#endif
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#include "flash.h"
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char *chip_to_probe = NULL;
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struct pci_access *pacc; /* For board and chipset_enable */
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int exclude_start_page, exclude_end_page;
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int force = 0, verbose = 0;
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int fd_mem;
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struct pci_dev *pci_dev_find(uint16_t vendor, uint16_t device)
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{
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struct pci_dev *temp;
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struct pci_filter filter;
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pci_filter_init(NULL, &filter);
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filter.vendor = vendor;
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filter.device = device;
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for (temp = pacc->devices; temp; temp = temp->next)
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if (pci_filter_match(&filter, temp))
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return temp;
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return NULL;
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}
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struct pci_dev *pci_card_find(uint16_t vendor, uint16_t device,
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uint16_t card_vendor, uint16_t card_device)
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{
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struct pci_dev *temp;
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struct pci_filter filter;
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pci_filter_init(NULL, &filter);
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filter.vendor = vendor;
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filter.device = device;
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for (temp = pacc->devices; temp; temp = temp->next)
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if (pci_filter_match(&filter, temp)) {
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if ((card_vendor == pci_read_word(temp, 0x2C)) &&
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(card_device == pci_read_word(temp, 0x2E)))
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return temp;
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}
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return NULL;
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}
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int map_flash_registers(struct flashchip *flash)
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{
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volatile uint8_t *registers;
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size_t size = flash->total_size * 1024;
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registers = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
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fd_mem, (off_t) (0xFFFFFFFF - 0x400000 - size + 1));
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if (registers == MAP_FAILED) {
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perror("Can't mmap registers using " MEM_DEV);
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exit(1);
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}
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flash->virtual_registers = registers;
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return 0;
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}
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struct flashchip *probe_flash(struct flashchip *flash)
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{
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volatile uint8_t *bios;
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unsigned long flash_baseaddr, size;
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while (flash->name != NULL) {
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if (chip_to_probe && strcmp(flash->name, chip_to_probe) != 0) {
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flash++;
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continue;
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}
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printf_debug("Probing for %s %s, %d KB: ",
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flash->vendor, flash->name, flash->total_size);
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if (!flash->probe) {
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printf_debug("failed! flashrom has no probe function for this flash chip.\n");
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flash++;
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continue;
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}
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size = flash->total_size * 1024;
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#ifdef TS5300
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// FIXME: Wrong place for this decision
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// FIXME: This should be autodetected. It is trivial.
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flash_baseaddr = 0x9400000;
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#else
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flash_baseaddr = (0xffffffff - size + 1);
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#endif
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/* If getpagesize() > size ->
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* "Can't mmap memory using /dev/mem: Invalid argument"
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* This should never happen as we don't support any flash chips
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* smaller than 4k or 8k (yet).
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*/
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if (getpagesize() > size) {
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/*
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* if a flash size of 0 is mapped, we map a single page
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* so we can probe in that area whether we know the
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* vendor at least.
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*/
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size = getpagesize();
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}
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bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED,
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fd_mem, (off_t) flash_baseaddr);
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if (bios == MAP_FAILED) {
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perror("Can't mmap memory using " MEM_DEV);
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exit(1);
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}
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flash->virtual_memory = bios;
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if (flash->probe(flash) == 1) {
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printf("%s found at physical address 0x%lx.\n",
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flash->name, flash_baseaddr);
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return flash;
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}
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munmap((void *)bios, size);
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flash++;
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}
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return NULL;
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}
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int verify_flash(struct flashchip *flash, uint8_t *buf)
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{
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int idx;
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int total_size = flash->total_size * 1024;
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uint8_t *buf2 = (uint8_t *) calloc(total_size, sizeof(char));
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if (flash->read == NULL)
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memcpy(buf2, (const char *)flash->virtual_memory, total_size);
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else
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flash->read(flash, buf2);
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printf("Verifying flash... ");
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if (verbose)
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printf("address: 0x00000000\b\b\b\b\b\b\b\b\b\b");
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for (idx = 0; idx < total_size; idx++) {
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if (verbose && ((idx & 0xfff) == 0xfff))
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printf("0x%08x", idx);
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if (*(buf2 + idx) != *(buf + idx)) {
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if (verbose) {
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printf("0x%08x ", idx);
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}
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printf("FAILED!\n");
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return 1;
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}
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if (verbose && ((idx & 0xfff) == 0xfff))
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printf("\b\b\b\b\b\b\b\b\b\b");
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}
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if (verbose)
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printf("\b\b\b\b\b\b\b\b\b\b ");
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printf("VERIFIED. \n");
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return 0;
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}
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void print_supported_chips(void)
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{
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int i;
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printf("Supported ROM chips:\n\n");
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for (i = 0; flashchips[i].name != NULL; i++)
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printf("%s %s\n", flashchips[i].vendor, flashchips[i].name);
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}
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void usage(const char *name)
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{
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printf("usage: %s [-rwvEVfLhR] [-c chipname] [-s exclude_start]\n", name);
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printf(" [-e exclude_end] [-m [vendor:]part] [-l file.layout] [-i imagename] [file]\n");
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printf
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(" -r | --read: read flash and save into file\n"
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" -w | --write: write file into flash\n"
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" -v | --verify: verify flash against file\n"
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" -E | --erase: erase flash device\n"
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" -V | --verbose: more verbose output\n"
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" -c | --chip <chipname>: probe only for specified flash chip\n"
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" -s | --estart <addr>: exclude start position\n"
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" -e | --eend <addr>: exclude end postion\n"
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" -m | --mainboard <[vendor:]part>: override mainboard settings\n"
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" -f | --force: force write without checking image\n"
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" -l | --layout <file.layout>: read rom layout from file\n"
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" -i | --image <name>: only flash image name from flash layout\n"
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" -L | --list-supported: print supported devices\n"
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" -h | --help: print this help text\n"
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" -R | --version: print the version (release)\n"
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"\n" " If no file is specified, then all that happens"
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" is that flash info is dumped.\n\n");
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exit(1);
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}
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void print_version(void)
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{
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printf("flashrom r%s\n", FLASHROM_VERSION);
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}
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int main(int argc, char *argv[])
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{
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uint8_t *buf;
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unsigned long size;
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FILE *image;
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struct flashchip *flash;
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int opt;
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int option_index = 0;
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int read_it = 0, write_it = 0, erase_it = 0, verify_it = 0;
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int ret = 0;
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static struct option long_options[] = {
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{"read", 0, 0, 'r'},
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{"write", 0, 0, 'w'},
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{"erase", 0, 0, 'E'},
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{"verify", 0, 0, 'v'},
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{"chip", 1, 0, 'c'},
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{"estart", 1, 0, 's'},
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{"eend", 1, 0, 'e'},
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{"mainboard", 1, 0, 'm'},
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{"verbose", 0, 0, 'V'},
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{"force", 0, 0, 'f'},
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{"layout", 1, 0, 'l'},
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{"image", 1, 0, 'i'},
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{"list-supported", 0, 0, 'L'},
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{"help", 0, 0, 'h'},
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{"version", 0, 0, 'R'},
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{0, 0, 0, 0}
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};
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char *filename = NULL;
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unsigned int exclude_start_position = 0, exclude_end_position = 0; // [x,y)
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char *tempstr = NULL, *tempstr2 = NULL;
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if (argc > 1) {
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/* Yes, print them. */
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int i;
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printf_debug("The arguments are:\n");
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for (i = 1; i < argc; ++i)
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printf_debug("%s\n", argv[i]);
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}
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setbuf(stdout, NULL);
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while ((opt = getopt_long(argc, argv, "rRwvVEfc:s:e:m:l:i:Lh",
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long_options, &option_index)) != EOF) {
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switch (opt) {
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case 'r':
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read_it = 1;
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break;
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case 'w':
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write_it = 1;
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break;
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case 'v':
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verify_it = 1;
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break;
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case 'c':
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chip_to_probe = strdup(optarg);
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break;
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case 'V':
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verbose = 1;
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break;
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case 'E':
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erase_it = 1;
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break;
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case 's':
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tempstr = strdup(optarg);
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sscanf(tempstr, "%x", &exclude_start_position);
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break;
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case 'e':
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tempstr = strdup(optarg);
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sscanf(tempstr, "%x", &exclude_end_position);
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break;
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case 'm':
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tempstr = strdup(optarg);
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strtok(tempstr, ":");
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tempstr2 = strtok(NULL, ":");
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if (tempstr2) {
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lb_vendor = tempstr;
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lb_part = tempstr2;
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} else {
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lb_vendor = NULL;
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lb_part = tempstr;
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}
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break;
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case 'f':
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force = 1;
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break;
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case 'l':
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tempstr = strdup(optarg);
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if (read_romlayout(tempstr))
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exit(1);
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break;
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case 'i':
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tempstr = strdup(optarg);
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find_romentry(tempstr);
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break;
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case 'L':
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print_supported_chips();
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print_supported_chipsets();
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print_supported_boards();
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exit(0);
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break;
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case 'R':
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print_version();
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exit(0);
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break;
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case 'h':
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default:
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usage(argv[0]);
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break;
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}
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}
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if (read_it && write_it) {
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printf("-r and -w are mutually exclusive\n");
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usage(argv[0]);
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}
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if (optind < argc)
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filename = argv[optind++];
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/* First get full io access */
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#if defined (__sun) && (defined(__i386) || defined(__amd64))
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if (sysi86(SI86V86, V86SC_IOPL, PS_IOPL) != 0) {
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#else
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if (iopl(3) != 0) {
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#endif
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fprintf(stderr, "ERROR: iopl failed: \"%s\"\n",
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strerror(errno));
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exit(1);
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}
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/* Initialize PCI access for flash enables */
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pacc = pci_alloc(); /* Get the pci_access structure */
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/* Set all options you want -- here we stick with the defaults */
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pci_init(pacc); /* Initialize the PCI library */
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pci_scan_bus(pacc); /* We want to get the list of devices */
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/* Open the memory device. A lot of functions need it */
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if ((fd_mem = open(MEM_DEV, O_RDWR)) < 0) {
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perror("Error: Can not access memory using " MEM_DEV
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". You need to be root.");
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exit(1);
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}
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myusec_calibrate_delay();
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/* We look at the lbtable first to see if we need a
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* mainboard specific flash enable sequence.
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*/
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coreboot_init();
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/* try to enable it. Failure IS an option, since not all motherboards
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* really need this to be done, etc., etc.
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*/
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ret = chipset_flash_enable();
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if (ret == -2) {
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printf("WARNING: No chipset found. Flash detection "
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"will most likely fail.\n");
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}
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board_flash_enable(lb_vendor, lb_part);
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if ((flash = probe_flash(flashchips)) == NULL) {
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printf("No EEPROM/flash device found.\n");
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// FIXME: flash writes stay enabled!
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exit(1);
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}
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printf("Flash part is %s (%d KB).\n", flash->name, flash->total_size);
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if (TEST_OK_MASK != (flash->tested & TEST_OK_MASK)) {
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printf("===\n");
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if (flash->tested & TEST_BAD_MASK) {
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printf("This flash part has status NOT WORKING for operations:");
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if (flash->tested & TEST_BAD_PROBE)
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printf(" PROBE");
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if (flash->tested & TEST_BAD_READ)
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printf(" READ");
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if (flash->tested & TEST_BAD_ERASE)
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printf(" ERASE");
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if (flash->tested & TEST_BAD_WRITE)
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printf(" WRITE");
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printf("\n");
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} else {
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printf("This flash part has status UNTESTED for operations:");
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if (!(flash->tested & TEST_OK_PROBE))
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printf(" PROBE");
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if (!(flash->tested & TEST_OK_READ))
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printf(" READ");
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if (!(flash->tested & TEST_OK_ERASE))
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printf(" ERASE");
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if (!(flash->tested & TEST_OK_WRITE))
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printf(" WRITE");
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printf("\n");
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}
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printf("Please email a report to flashrom@coreboot.org if any of the above operations\n");
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printf("work correctly for you with this flash part. Please include the full output\n");
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printf("from the program, including chipset found. Thank you for your help!\n");
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printf("===\n");
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}
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if (!(read_it | write_it | verify_it | erase_it)) {
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printf("No operations were specified.\n");
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// FIXME: flash writes stay enabled!
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exit(1);
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}
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if (!filename && !erase_it) {
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printf("Error: No filename specified.\n");
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// FIXME: flash writes stay enabled!
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exit(1);
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}
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size = flash->total_size * 1024;
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buf = (uint8_t *) calloc(size, sizeof(char));
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if (erase_it) {
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printf("Erasing flash chip\n");
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if (!flash->erase) {
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fprintf(stderr, "Error: flashrom has no erase function for this flash chip.\n");
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return 1;
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}
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flash->erase(flash);
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exit(0);
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} else if (read_it) {
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if ((image = fopen(filename, "w")) == NULL) {
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perror(filename);
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exit(1);
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}
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printf("Reading Flash...");
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if (flash->read == NULL)
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memcpy(buf, (const char *)flash->virtual_memory, size);
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else
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flash->read(flash, buf);
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if (exclude_end_position - exclude_start_position > 0)
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memset(buf + exclude_start_position, 0,
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exclude_end_position - exclude_start_position);
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fwrite(buf, sizeof(char), size, image);
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fclose(image);
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printf("done\n");
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} else {
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struct stat image_stat;
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if ((image = fopen(filename, "r")) == NULL) {
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perror(filename);
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exit(1);
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}
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if (fstat(fileno(image), &image_stat) != 0) {
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perror(filename);
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exit(1);
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}
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if (image_stat.st_size != flash->total_size * 1024) {
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fprintf(stderr, "Error: Image size doesnt match\n");
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exit(1);
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}
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fread(buf, sizeof(char), size, image);
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show_id(buf, size);
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fclose(image);
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}
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/* exclude range stuff. Nice idea, but at the moment it is only
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* supported in hardware by the pm49fl004 chips.
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* Instead of implementing this for all chips I suggest advancing
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* it to the rom layout feature below and drop exclude range
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* completely once all flash chips can do rom layouts. stepan
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*/
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// ////////////////////////////////////////////////////////////
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if (exclude_end_position - exclude_start_position > 0)
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memcpy(buf + exclude_start_position,
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(const char *)flash->virtual_memory +
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exclude_start_position,
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exclude_end_position - exclude_start_position);
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exclude_start_page = exclude_start_position / flash->page_size;
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if ((exclude_start_position % flash->page_size) != 0) {
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exclude_start_page++;
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}
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exclude_end_page = exclude_end_position / flash->page_size;
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// ////////////////////////////////////////////////////////////
|
|
|
|
// This should be moved into each flash part's code to do it
|
|
// cleanly. This does the job.
|
|
handle_romentries(buf, (uint8_t *) flash->virtual_memory);
|
|
|
|
// ////////////////////////////////////////////////////////////
|
|
|
|
if (write_it) {
|
|
if (!flash->write) {
|
|
fprintf(stderr, "Error: flashrom has no write function for this flash chip.\n");
|
|
return 1;
|
|
}
|
|
ret |= flash->write(flash, buf);
|
|
}
|
|
|
|
if (verify_it)
|
|
ret |= verify_flash(flash, buf);
|
|
|
|
return ret;
|
|
}
|