Messages in this thread | | | Date | Wed, 11 Jul 2007 02:02:23 +0400 | From | "Manu Abraham" <> | Subject | Re: Reading a physical memory location |
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On 7/10/07, vraghavan3@mail.gatech.edu <vraghavan3@mail.gatech.edu> 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.
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