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Re: Memory Mapped register access in 80321

From: Mark Salter <msalter at redhat dot com>
To: normanlaose at catcha dot com
Cc: ecos-discuss at sources dot redhat dot com
Date: Sat, 14 Jun 2003 22:27:09 -0400 (EDT)
Subject: Re: [ECOS] Memory Mapped register access in 80321
References: <1055637132.3eebbe8c499bf@mail.catcha.com> <20030615004947.F348378859@deneb.localdomain> <1055638891.3eebc56bb1df4@mail.catcha.com>

>>>>> normanlaose  writes:

> Hello Mark,
>       Thanks for the response.

>       I am curious. In Linux, I have to access these address
> using virtual address got from the ioremap(). I thought there
> was concept of virtual address in Redboot. Please correct me.

RedBoot does use virtual addresses. Almost everything on the
'321 boards are identity mapped. Take a look at:

  http://sources.redhat.com/ecos/docs-latest/ref/iq80321.html

scroll down to the bottom for tables showing the physical
and virtual addresses used by eCos and RedBoot.

--Mark

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Follow-Ups:
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References:
- Memory Mapped register access in 80321
  - From: normanlaose
- Re: Memory Mapped register access in 80321
  - From: Mark Salter
- Re: Memory Mapped register access in 80321
  - From: normanlaose

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