Subject: Re: mem=XXXM ioremap DMA

From: Sylvain Munaut <[email-masked]>
Date: Mon, 29 Jan 2007 09:06:58 +0100

Eric Nuckols wrote:
> in my driver, I'm calling
> my_virt_address =   ioremap( 0x1F800000, 0x800000  );
> my_bus_address = virt_to_bus( my_virt_address );
>
You can't use virt_to_bus on address returned by ioremap AFAIK.

I think you could do
my_bus_address = virt_to_bus(phys_to_virt(0x1f800000));

Altough it slightly misuse the functions ... but that should work.

        Sylvain