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If you're a coreboot or flashrom newbie, this page is for you.
If you're a coreboot or flashrom newbie, this page is for you.


=[[flashrom]]=
== coreboot ==
A tool to read/write coreboot/BIOS images from/to flash chips.


==Add the bus type to flash chip definitions==
=== AMD 740G information gathering ===
Go through the list of flash chips in flashchips.c inside the flashrom source. Look for chip definitions which have .bustype = CHIP_BUSTYPE_NONSPI and look at their data sheets. Read the data sheets and try to figure out the flash bus they use (Parallel/LPC/FWH/SPI). Change the bustype field to CHIP_BUSTYPE_PARALLEL etc. and post a patch to the list.


Even a single updated chip helps.
(This project description is not finished yet)


[[Flashrom#Communication_bus_protocol]] has a writeup on how to figure out the bus type.
If you have a board with AMD 740G chipset, please run (as root)


=coreboot=
$ '''flashrom -V'''
I'll skip explaining what coreboot is. The whole wiki is about this topic and I can't summarize it in one sentence.
$ '''lspci -nnvvvxxxx'''
$ '''superiotool -deV'''
$ '''dmidecode'''


==coreboot v2==
and mail the output to the [[Mailinglist|coreboot mailing list]] together with the exact model number/name of your board.
The workhorse version of coreboot. Lots of supported boards, but difficult to work with.


TODO: Add easy tasks here.
This helps us evaluate which boards are good targets for coreboot.


==coreboot v3==
Here are some boards:
The next generation version of coreboot. Few supported boards, still in the design testing phase, easy to work with.


TODO: Add easy tasks here.
* http://www.czechcomputer.cz/cat_tree.jsp?bpath=Z%C3%A1kladn%C3%AD+desky\Socket+AM2%2B\AMD+740G
 
=== Use CBFS wherever possible ===
 
* '''src/cpu/amd/model_lx/vsmsetup.c''' is a very good candidate. The VSM blobs should be loaded from [[CBFS]].
 
== Payloads ==
 
coreboot can use a number of different [[Payloads|payloads]].
 
=== Add/test new supported payloads ===
 
* Test syslinux (probably requires [[SeaBIOS]] in addition, needs to be checked).
* Port [[GPXE]] to "native" coreboot (it works fine together with [[SeaBIOS]] though).
 
== flashrom ==
 
The [[flashrom]] tool can read/write coreboot/BIOS images from/to flash chips.
 
* See [http://flashrom.org/Easy_projects flashrom's Easy Projects] list for details.
 
== Other ==
 
* Add [http://tracker.coreboot.org/trac/coreboot/ticket/95 support for using coreboot in VirtualBox].

Revision as of 17:01, 19 September 2010

You probably came here trying to find a small (minutes to hours) and easy task where you can get your hands dirty and get results immediately.

If you're a coreboot or flashrom newbie, this page is for you.

coreboot

AMD 740G information gathering

(This project description is not finished yet)

If you have a board with AMD 740G chipset, please run (as root)

$ flashrom -V
$ lspci -nnvvvxxxx
$ superiotool -deV
$ dmidecode

and mail the output to the coreboot mailing list together with the exact model number/name of your board.

This helps us evaluate which boards are good targets for coreboot.

Here are some boards:

Use CBFS wherever possible

  • src/cpu/amd/model_lx/vsmsetup.c is a very good candidate. The VSM blobs should be loaded from CBFS.

Payloads

coreboot can use a number of different payloads.

Add/test new supported payloads

  • Test syslinux (probably requires SeaBIOS in addition, needs to be checked).
  • Port GPXE to "native" coreboot (it works fine together with SeaBIOS though).

flashrom

The flashrom tool can read/write coreboot/BIOS images from/to flash chips.

Other