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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