linux-kernel - Re: iwl + iomap + readl/writel

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Message-ID: <1ba2fa240808121449j4c04039bu2fc9b58129dc6027@mail.gmail.com>
Date:	Wed, 13 Aug 2008 00:49:51 +0300
From:	"Tomas Winkler" <tomasw@...il.com>
To:	"Jiri Slaby" <jirislaby@...il.com>
Cc:	yi.zhu@...el.com, reinette.chatre@...el.com,
	linux-wireless <linux-wireless@...r.kernel.org>,
	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>
Subject: Re: iwl + iomap + readl/writel

On Tue, Aug 12, 2008 at 11:48 PM, Jiri Slaby <jirislaby@...il.com> wrote:
> Hi,
>
> I spotted that iwl drivers use readl method on an iomap space. IIRC some
> archs might return a tag instead of an address expected by readl/writel.
>
> I think you should either switch to ioread32/iowrite32 or to ioremap.

Can you give me reading material  on this?
Thanks
Tomas
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