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Diffstat (limited to 'README')
| -rw-r--r-- | README | 75 |
1 files changed, 62 insertions, 13 deletions
@@ -1,20 +1,69 @@ -on the cs5530 southbridge, +This is the universal LinuxBIOS flash utility. -setpci -s 0:12.0 52.b=ee -setpci -x 0:12.0 5b.b= 0x20 (| with whatever is there) +usage: ./flashrom [-rwvE] [-V] [-c chipname] + [-s exclude_start] [-e exclude_end] [file] -I am making this a general-purpose userland flash burner -- RGM + -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 -Earlier notes from Ollie: + -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 -Here is some utilities for using/programming flash ROM on SiS 630/950 M/Bs + If no file is specified, then all that happens + is that flash info is dumped and the flash chip is set to writable. - 1. flash_on, turnning on the flash writer enable for 630/950 M/Bs, - you have to run this before load DoC drivers. - 2. flash_rom, use your 630/950 M/Bs as a flash programmer for some - flash parts. This utility is made as modular as possible. If - you find your flash part is not supported, you can add a driver - your own. Or sending me the data sheet. +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. + -Ollie |
