Which is your platform ?
Which processor?
If you want to use physical address directly, then disable MMU. That
is not possible in linux.
Nobin
On 7/11/07, Manu Abraham <[email protected]> wrote:
On 7/10/07, [email protected] <[email protected]> wrote:
>
> Thanks for the quick reply. But I was wondering as to why I would have to map
> the physical address to the virtual address when I know that the string is
> permanently in the physical memory because its loaded into flash. Is there a way
> to directly read from the physical memory location? Also, do the functions
> ioremap() and readl(va) work when called from within a kernel module?
>
Of course, if you look at almost any of the memory mapped device
drivers, you will find that ioremap/readl/writel is the backbone of
your infrastructure.
Manu
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