| This is the universal LinuxBIOS flash utility. |
| |
| build requirements |
| ------------------ |
| |
| To build the flashrom utility you need to have the following packages |
| installed on your linux system: |
| |
| * pciutils |
| * pciutils-devel |
| |
| |
| usage |
| ----- |
| |
| usage: ./flashrom [-rwvE] [-V] [-c chipname] |
| [-s exclude_start] [-e exclude_end] [file] |
| |
| -r | --read: read flash and save into file |
| -w | --write: write file into flash (default when file is specified) |
| -v | --verify: verify flash against file |
| -E | --erase: Erase flash device |
| -V | --verbose: more verbose output |
| |
| -c | --chip <chipname>: probe only for specified flash chip |
| -s | --estart <addr>: exclude start position |
| -e | --eend <addr>: exclude end postion |
| -m | --mainboard <vendor:part>: override mainboard settings |
| -l | --layout <file.layout>: read rom layout from file |
| -i | --image <name>: only flash image name from flash layout |
| |
| If no file is specified, then all that happens |
| is that flash info is dumped and the flash chip is set to writable. |
| |
| |
| LinuxBIOS table and Mainboard identification |
| -------------------------------------------- |
| |
| flashrom reads the LinuxBIOS table to determine the current mainboard. |
| (Parse DMI as well in future?) If no LinuxBIOS table could be read |
| or if you want to override these values, you can to specify -m ie.: |
| |
| flashrom -w --mainboard ISLAND:ARUMA island_aruma.rom |
| |
| |
| rom layout support |
| ------------------ |
| |
| flashrom supports rom layouts. This allows to flash certain parts of |
| the flash chip only. A rom layout file looks like follows: |
| |
| 00000000:00008fff gfxrom |
| 00009000:0003ffff normal |
| 00040000:0007ffff fallback |
| |
| i.e.: |
| startaddr:endaddr name |
| |
| all addresses are offsets within the file, not absolute addresses! |
| |
| If you only want to update the normal image in a rom you can say: |
| |
| flashrom -w --layout rom.layout --image normal island_aruma.rom |
| |
| To update normal and fallback but leave the vga bios alone, say: |
| |
| flashrom -w -l rom.layout -i normal -i fallback island_aruma.rom |
| |
| Currently overlapping sections are not spported. |
| |
| rom layouts should replace the -s and -e option since they are more |
| flexible and they should lead to a rom update file format with the |
| rom layout and the rom image in one file (cpio, zip or something?) |
| |
| |
| DOC support |
| ----------- |
| |
| DISK on Chip support is currently disabled since it is considered unstable. |
| Change CFLAGS in the Makefile to enable it. |
| |
| |