Re: [Qemu-devel] [Patch 1/2] switch support v2

[Armin <akuster@kama-aina.net>]

Laurent Vivier wrote:
> Le lundi 17 décembre 2007 à 09:40 -1000, Armin a écrit :
>   
>> Laurent Vivier wrote:
>>     
>>> Hi,
>>>
>>> if you just want to configure which bank to use with pflash, perhaps you
>>> can do something like:
>>>
>>> qemu -drive if=pflash,unit=0
>>>
>>> to use the first bank, and
>>>
>>> qemu -drive if=pflash,unit=1
>>>
>>> to use the second bank.
>>>   
>>>       
>> Yes, that might work for the flash case but does not address other 
>> switches settings. In my case, the Mainstone has two rotary switches 
>> that define which frequency to boot up in.
>>     
>
> But I don't think qemu able to emulate frequency ?
> So it should be useless.
>   
I am sure that is true and my example might be very week in the above case.
I think if a board we are trying to emulate has boot time configurations 
governed by  jumpers or switches for enabling or disabling certain 
hardware devices , then having a runtime solution seems more 
appropriate.  It seems silly to have to rebuild to qemu if one wants to 
switch device A to be uart #2 from an IrdA device when using "-switches 
1=on" could do the same.

regards,
Armin