* filesystem for battery-buffered SRAM
@ 2001-10-22 14:41 Matthias Fuchs
2001-10-23 9:08 ` Björn Eriksson
0 siblings, 1 reply; 3+ messages in thread
From: Matthias Fuchs @ 2001-10-22 14:41 UTC (permalink / raw)
To: linux-mtd@lists.infradead.org
Hi,
I have to setup an embedded Linux box that uses 1MB of battery buffered
SRAM to store nonvolatile data.
This memory is directly mapped into ma addressspace and needs no magic
things to read or write to it.
What might be the best choice for a filesystem for this memory and is it
possible to setup file access with MTD.
With other words: Is MTD able to access normal RAM devices (no FLASH,
but SRAM) ?
Are there other ways to setup a filesystem in a SRAM ?
Matthias
--
--------------------------------------------------------------------------
_/_/_/_/ Matthias Fuchs
_/_/_/_/ Dipl.-Ing.
_/_/_/_/ matthias.fuchs@esd-electronics.com
_/_/_/ _/_/_/_/_/_/_/ esd electronic system design gmbh
_/ _/ _/ _/ Vahrenwalder Str. 207
_/ _/ _/_/_/ _/ _/ D-30165 Hannover
_/ _/ _/ _/ Phone: +49-511-37298-0
_/_/_/_/_/_/_/ _/_/_/ Fax: +49-511-37298-68
--------------------------------------------------------------------------
^ permalink raw reply [flat|nested] 3+ messages in thread* Re: filesystem for battery-buffered SRAM
2001-10-22 14:41 filesystem for battery-buffered SRAM Matthias Fuchs
@ 2001-10-23 9:08 ` Björn Eriksson
0 siblings, 0 replies; 3+ messages in thread
From: Björn Eriksson @ 2001-10-23 9:08 UTC (permalink / raw)
To: linux-mtd@lists.infradead.org
On Mon, Oct 22, 2001 at 04:41:12PM +0200, Matthias Fuchs wrote:
> I have to setup an embedded Linux box that uses 1MB of battery buffered
> SRAM to store nonvolatile data.
> This memory is directly mapped into ma addressspace and needs no magic
> things to read or write to it.
>
> What might be the best choice for a filesystem for this memory and is it
> possible to setup file access with MTD.
> With other words: Is MTD able to access normal RAM devices (no FLASH,
> but SRAM) ?
Use mtdram with CONFIG_MTDRAM_ABS_POS. It's (the config option) there
for exactly this purpose.
--
//Björnen.
^ permalink raw reply [flat|nested] 3+ messages in thread
* filesystem for battery-buffered SRAM
@ 2001-10-22 15:07 Matthias Fuchs
0 siblings, 0 replies; 3+ messages in thread
From: Matthias Fuchs @ 2001-10-22 15:07 UTC (permalink / raw)
To: linuxppc-embedded
Hi,
I have to setup an embedded Linux box that uses 1MB of battery buffered
SRAM to store nonvolatile data.
This memory is directly mapped into addressspace and needs no magic
things to read or write to it.
What might be the best choice for a filesystem and how can I setup a
ramdisk
at a special memory location ?
Is MTD able to access normal RAM devices (no FLASH, but SRAM) ?
Matthias
--
--------------------------------------------------------------------------
_/_/_/_/ Matthias Fuchs
_/_/_/_/ Dipl.-Ing.
_/_/_/_/ matthias.fuchs@esd-electronics.com
_/_/_/ _/_/_/_/_/_/_/ esd electronic system design gmbh
_/ _/ _/ _/ Vahrenwalder Str. 207
_/ _/ _/_/_/ _/ _/ D-30165 Hannover
_/ _/ _/ _/ Phone: +49-511-37298-0
_/_/_/_/_/_/_/ _/_/_/ Fax: +49-511-37298-68
--------------------------------------------------------------------------
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
^ permalink raw reply [flat|nested] 3+ messages in thread
end of thread, other threads:[~2001-10-23 9:28 UTC | newest]
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2001-10-22 14:41 filesystem for battery-buffered SRAM Matthias Fuchs
2001-10-23 9:08 ` Björn Eriksson
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2001-10-22 15:07 Matthias Fuchs
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