[coreboot] A-trend ATC-6240 - sorry for late

[Uwe Hermann]

Hi,

thanks for the information.

Please try the attached patch for your board, it should at least print
something on the serial console and might even boot to a Linux login
prompt if you insert 64 MB (or more?) into the first RAM slot.

Apply it with:

  $ patch -p0 < v2_atrend_atc_6240.patch


On Wed, May 21, 2008 at 05:37:51AM +0000, shadow . wrote:
> Do you have a null-modem cable for debugging and a spare ROM chip you
> can use for testing coreboot?
> 
> i have an old RS-232 serial convertor cabel modem (25-pin to 9-pin) use it for my
> external modem, can i use it , if can not i will buy one .

Hm, dunno, see here for a picture of a null-modem cable:
http://www.coreboot.org/FAQ#Null-modem_cable

Basically you want to connect COM1 (or COM2) on the target PC to
COM1 (or COM2) on another PC. You can test your cable by using a
terminal program such as minicom on both sides.

The settings are 115200 BAUD, 8 bits, no parity, 1 stop bit.


> yes i have spare ROM chip .

Great. Please try to read your original chip's contents first with

  $ flashrom -r orig.dd

Then, hot-swap the chips (i.e. insert the empty one), and try to flash
your original BIOS image onto it:

  $ flashrom -wv orig.dd

If it says VERIFIED, things look ok. Then, try to power-off the machine
and restart it with this newly written chip. If that works (i.e. the
chip now contains a working and tested copy of your original BIOS)
you're fine.

Store away one of the chips somewhere safe now, in order to have a
backup when something goes wrong.


For building a coreboot image of your board, first build a payload
(usually you want FILO to boot from disk).

Then:

  $ cd coreboot-v2/targets
  $ ./buildtarget a-trend/atc-6240
  $ cd a-trend/atc-6240/atc-6240
  $ cp ~/filo.elf payload.elf
  $ make

The coreboot.rom file is your new image which you can flash with
flashrom.


HTH, Uwe.
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