From: Scott Wood <scottwood-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
To: Subodh Nijsure <sunijsur-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Cc: devicetree-discuss-mnsaURCQ41sdnm+yROfE0A@public.gmane.org
Subject: Re: Where in dts file one should define IORESOURCES_(IO|MEM)?
Date: Mon, 13 Apr 2009 13:59:25 -0500 [thread overview]
Message-ID: <49E38B8D.8040105@freescale.com> (raw)
In-Reply-To: <003e01c9bc60$ab11c2c0$9e70150a-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
Subodh Nijsure wrote:
> in drivers/ide/legacy/ide_platform.c there is code that looks like this.
>
>
> res_base = platform_get_resource(pdev, IORESOURCE_IO, 0);
> res_alt = platform_get_resource(pdev, IORESOURCE_IO, 1);
>
> if (!res_base || !res_alt) {
> res_base = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> res_alt = platform_get_resource(pdev, IORESOURCE_MEM, 1);
> If I want to specify IORESOURCE_MEM (0) and IORESOURCE_MEM ( 1)
> addresses in my board specific what statements do I need to include in
> my dts file?
They would be the first and second "reg" resources of the relevant
device node.
For IDE, you probably want drivers/ata/pata_of_platform.c rather than
the above driver.
> I have tried including them in memory {} section of dts and that doesn't
> work.
No, that's for *memory*, not device registers.
-Scott
prev parent reply other threads:[~2009-04-13 18:59 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-04-13 17:52 Where in dts file one should define IORESOURCES_(IO|MEM)? Subodh Nijsure
[not found] ` <003e01c9bc60$ab11c2c0$9e70150a-FYB4Gu1CFyUAvxtiuMwx3w@public.gmane.org>
2009-04-13 18:59 ` Scott Wood [this message]
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