Re: Accessing ISA board memory

From: Richard B. Johnson (root@chaos.analogic.com)
Date: Thu Apr 06 2000 - 07:43:10 EST


On Thu, 6 Apr 2000, michel wrote:

>
> Hello,
>
> Just to clarify ma question.
> I want to access to memory : 0xe00000-0x1000000 which is located on a ISA board.
> I don't want Linux to use these adresses, so i need a kind of system exclusion,
> perhaps on memory initialisation and I also need to know what virtual adresses
> correspond to theses physical adresses.
>
    #define LEN (0x1000000 - 0xe00000)
                   ^^^^^^^_____ Are you sure?

    whatever *p;

    p = (whatever *) ioremap(0xe00000, LEN);

Cheers,
Dick Johnson

Penguin : Linux version 2.3.41 on an i686 machine (800.63 BogoMips).

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