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5 This is the universal (LinuxBIOS) flash utility.
10 To build the flashrom utility you need to have the following packages
11 installed on your Linux system:
20 usage: ./flashrom [-rwvEVfh] [-c chipname] [-s exclude_start]
21 [-e exclude_end] [-m vendor:part] [-l file.layout] [-i imagename] [file]
22 -r | --read: read flash and save into file
23 -w | --write: write file into flash (default when
25 -v | --verify: verify flash against file
26 -E | --erase: erase flash device
27 -V | --verbose: more verbose output
28 -c | --chip <chipname>: probe only for specified flash chip
29 -s | --estart <addr>: exclude start position
30 -e | --eend <addr>: exclude end postion
31 -m | --mainboard <vendor:part>: override mainboard settings
32 -f | --force: force write without checking image
33 -l | --layout <file.layout>: read rom layout from file
34 -i | --image <name>: only flash image name from flash layout
36 If no file is specified, then all that happens
37 is that flash info is dumped and the flash chip is set to writable.
40 LinuxBIOS Table and Mainboard Identification
41 --------------------------------------------
43 Flashrom reads the LinuxBIOS table to determine the current mainboard.
44 (Parse DMI as well in future?) If no LinuxBIOS table could be read
45 or if you want to override these values, you can specify -m, e.g.:
47 flashrom -w --mainboard ISLAND:ARUMA island_aruma.rom
53 Flashrom supports ROM layouts. This allows to flash certain parts of
54 the flash chip only. A ROM layout file looks like follows:
56 00000000:00008fff gfxrom
57 00009000:0003ffff normal
58 00040000:0007ffff fallback
61 startaddr:endaddr name
63 all addresses are offsets within the file, not absolute addresses!
65 If you only want to update the normal image in a ROM you can say:
67 flashrom -w --layout rom.layout --image normal island_aruma.rom
69 To update normal and fallback but leave the VGA BIOS alone, say:
71 flashrom -w -l rom.layout -i normal -i fallback island_aruma.rom
73 Currently overlapping sections are not supported.
75 ROM layouts should replace the -s and -e option since they are more
76 flexible and they should lead to a ROM update file format with the
77 ROM layout and the ROM image in one file (cpio, zip or something?)
83 DISK on Chip support is currently disabled since it is considered unstable.
84 Change CFLAGS in the Makefile to enable it: Remove -DDISABLE_DOC from CFLAGS.