diff options
Diffstat (limited to 'util/flashrom/flash_rom.c')
| -rw-r--r-- | util/flashrom/flash_rom.c | 34 |
1 files changed, 18 insertions, 16 deletions
diff --git a/util/flashrom/flash_rom.c b/util/flashrom/flash_rom.c index 4245a8f92b..28ce567ff4 100644 --- a/util/flashrom/flash_rom.c +++ b/util/flashrom/flash_rom.c @@ -51,7 +51,7 @@ struct flashchip *probe_flash(struct flashchip *flash) unsigned long size; if ((fd_mem = open("/dev/mem", O_RDWR)) < 0) { - perror("Can not open /dev/mem"); + perror("Error: Can not open /dev/mem. You need to be root."); exit(1); } @@ -73,7 +73,7 @@ struct flashchip *probe_flash(struct flashchip *flash) bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, fd_mem, (off_t) (0xffffffff - size + 1)); if (bios == MAP_FAILED) { - perror("Error MMAP /dev/mem"); + perror("Error: Can't mmap /dev/mem."); exit(1); } flash->virt_addr = bios; @@ -90,7 +90,7 @@ struct flashchip *probe_flash(struct flashchip *flash) bios = mmap(0, size, PROT_WRITE | PROT_READ, MAP_SHARED, fd_mem, (off_t) (0x9400000)); if (bios == MAP_FAILED) { - perror("Error MMAP /dev/mem"); + perror("Error: Can't mmap /dev/mem."); exit(1); } flash->virt_addr = bios; @@ -145,22 +145,24 @@ int verify_flash(struct flashchip *flash, uint8_t *buf) void usage(const char *name) { - printf("usage: %s [-rwvE] [-V] [-c chipname] [-s exclude_start] [-e exclude_end] [file]\n", name); - printf(" -r | --read: read flash and save into file\n" - " -w | --write: write file into flash (default when file is specified)\n" - " -v | --verify: verify flash against file\n" - " -E | --erase: Erase flash device\n" - " -V | --verbose: more verbose output\n\n" - " -c | --chip <chipname>: probe only for specified flash chip\n" - " -s | --estart <addr>: exclude start position\n" - " -e | --eend <addr>: exclude end postion\n" + printf("usage: %s [-rwvEVfh] [-c chipname] [-s exclude_start]\n", name); + printf(" [-e exclude_end] [-m vendor:part] [-l file.layout] [-i imagename] [file]\n"); + printf(" -r | --read: read flash and save into file\n" + " -w | --write: write file into flash (default when\n" + " file is specified)\n" + " -v | --verify: verify flash against file\n" + " -E | --erase: erase flash device\n" + " -V | --verbose: more verbose output\n" + " -c | --chip <chipname>: probe only for specified flash chip\n" + " -s | --estart <addr>: exclude start position\n" + " -e | --eend <addr>: exclude end postion\n" " -m | --mainboard <vendor:part>: override mainboard settings\n" - " -f | --force: force write without checking image\n" - " -l | --layout <file.layout>: read rom layout from file\n" - " -i | --image <name>: only flash image name from flash layout\n" + " -f | --force: force write without checking image\n" + " -l | --layout <file.layout>: read rom layout from file\n" + " -i | --image <name>: only flash image name from flash layout\n" "\n" " If no file is specified, then all that happens\n" - " is that flash info is dumped\n\n"); + " is that flash info is dumped.\n\n"); exit(1); } |