[coreboot] [PATCH] flashrom: External flasher support

[Carl-Daniel Hailfinger]

On 08.05.2009 03:34, Joseph Smith wrote:
> On Fri, 08 May 2009 02:57:27 +0200, Carl-Daniel Hailfinger wrote:
>   
>> To prepare flashrom for Paraflasher (or other external flasher) support,
>> each chip read/write access is either handled as memory mapped access or
>> external flasher cycle.
>>
>> External flashers can set the flasher variable to their own ID/number
>> during startup and handle accesses in the switch statement inside
>> chip_{read,write}[bwl].
>>
>> Signed-off-by: Carl-Daniel Hailfinger <c-d.hailfinger.devel.2006 at gmx.net>
>>     
> Very cool Carl-Daniel!
> So all we would have to do is add "case FLASHER_PARAFLASHER" and it's
> external r/w to each one of the swithes and we are good to go?
>   

Correct. Additionally, you need a command line parameter which sets the
flasher variable to FLASHER_PARAFLASHER, but that's it. I think Uwe has
a patch to do that.


> By the way, sorry to be slacking on the Paraflasher project lately, I've
> been a little busy lately...
>   

No problem. I need to dig up the LPC bus bitbang sources I got from Andy
(LPCflasher developer), then someone can integrate them into flashrom.

To be honest, I think a flasher for old-style parallel flash may be
easiest because you don't have to implement a big state machine like for
LPC/FWH.

Regards,
Carl-Daniel

-- 
http://www.hailfinger.org/