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SubjectRe: non volatile ram disk
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hi

thanks for replying,

I already tried to map an MTD to physical memory, but got an error and
an mtd with size 0

dou you know why ?

regards
erez

On Mon, 2002-01-21 at 15:41, Peter Wächtler wrote:
> Erez Doron schrieb:
> >
> > hi
> >
> > I'm looking for a way to make a ramdisk which is not erased on reboot
> > this is for use with ipaq/linux.
> >
> > i tought of booting with mem=32m and map a block device to the rest of
> > the 32M ram i have.
> >
> > the probelm is that giving mem=32m to the kernel will cause the kernel
> > to map only the first 32m of physical memory to virtual one, so using
> > __pa(ptr) on the top 32m causes a kernel oops.
> >
> > any idea ?
> >
>
> a MTD is the way to go, which uses the "reserved" mem area.
> I assume that the RAM is battery backed
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