SRAM and MTD

SRAM and MTD

[Felix Frey]

Hi

I'd like to connect a 32kx8 static RAM (battery buffered) to the ISAbus of my 
x86 based system to frequently store sensitive data which _must_ survive a 
powerfail. Access should be made through the mtd character device. By diving 
a bit into the code I saw there is a ram chip driver, however, I got pretty 
confused. 
Do I have to write my own mapping driver or how can I tell the chip driver 
where it finds my RAM device and how large it is ?
Does the ram chip driver accept any parameters ?

Any help is greatly appreciated.

Felix

Re: SRAM and MTD

[Michal Schulz]

On Fri, 29 Aug 2003, Felix Frey wrote:

> I'd like to connect a 32kx8 static RAM (battery buffered) to the ISAbus of my
> x86 based system to frequently store sensitive data which _must_ survive a
> powerfail. Access should be made through the mtd character device. By diving
> a bit into the code I saw there is a ram chip driver, however, I got pretty
> confused.
> Do I have to write my own mapping driver or how can I tell the chip driver
> where it finds my RAM device and how large it is ?
> Does the ram chip driver accept any parameters ?

Perhaps my article might help you. Have a look at
http://hedera.linuxnews.pl/_news/2002/09/03/_long/1445.html

My aim was to use mostly free GFX memory, but your seems to be similiar :)

regards,

-- 
Michal Schulz