From: Rongrong Zou <zourongrong@gmail.com>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-kernel@vger.kernel.org
Subject: Re: DT config of io resource
Date: Wed, 13 Jan 2016 09:55:15 +0800 [thread overview]
Message-ID: <5695AE83.8010003@gmail.com> (raw)
In-Reply-To: <20160112173101.GC31009@linutronix.de>
On 2016/1/13 1:31, Sebastian Andrzej Siewior wrote:
> * Rolland Chau | 2015-12-31 13:46:14 [+0800]:
>
>> Hi Sebastian,
> Hi,
>
>> I see that your sent a patch contain the below dt config.
>>
>> I want to konw how can i get IO resource from dts, how is the
>>
>> parent node configed? thanks.
>
> The complete node can be found in
> arch/x86/platform/ce4100/falconfalls.dts
>
> The ressource should be configured by the platform_device code so a
> platform_get_resource(pdev, IORESOURCE_IO, 0);
> should do the trick. The upper bus is ISA and the first 1 in reg
> classifies the memory as IO memory and not memory mapped.
>
I found your isa node is as subnode of pci node, so does the I/O port on isa
is memory-mapped into PCI address space ?
> Sebastian
>
Regards,
Rongrong
prev parent reply other threads:[~2016-01-13 1:55 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-12-31 5:46 DT config of io resource Rolland Chau
2016-01-12 17:31 ` Sebastian Andrzej Siewior
2016-01-13 1:55 ` Rongrong Zou [this message]
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