8250 UART doesn't populate /proc/iomem?

[Prabhakar Lad]

Hi Woody,

On Mon, Dec 10, 2012 at 11:54 AM, Woody Wu <narkewoody at gmail.com> wrote:
> Hi, list
>
> I found some io memory information is lost from /dev/iomem and want to
> find out why.
>
> I have a 2.6.16 kernel running on a ARM board (Samsung S3C2410). From
> the kernel log, I see 16 8250 serial ports were detected, and each of
> thoese ports has a memory address:
[Snip]

> You see, there is no serial8250 informations.
>
> Can anyone here please tell me how this can happen?  Does it mean the
> serial8250 driver don't populate or register in the /proc/iomem?
>
Can you look at the o/p of /proc/ioports and see if the entry is present here.

Regards,
--Prabhakar Lad

>
> --
> woody
> I can't go back to yesterday - because I was a different person then.
>
>
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