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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 <abraham.manu@gmail.com> wrote: > 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. > > > Manu > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/ | ||||||||||||
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