Re: Unable to handle kernel paging request at virtual address b0100000

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On 9/28/05, Deepak Joshi <deepak_cins@xxxxxxxxxxx> wrote:
> HI all,
>
> I am trying to write at b0100000 of lcd control
> register of strongarm. but its giving me "unable to
> handle kernel paging request at virtual address
> b0100000."
>
> i want to know why and in which conditions this error
> is generated ?

You're trying to write directly on the physical address. You should
use the virtual address where the register is mapped to.
Please see drivers/video/sa1100fb.c (and the definition of LCCR0 in
include/asm-arm/arch-sa1100/SA-1100.h)

Giancarlo

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