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From: Arnd Bergmann <arnd@arndb.de>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Cc: Bharat Kumar Gogada <bharat.kumar.gogada@xilinx.com>,
	"linux-pci@vger.kernel.org" <linux-pci@vger.kernel.org>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	Bjorn Helgaas <bhelgaas@google.com>,
	"Liviu.Dudau@arm.com" <Liviu.Dudau@arm.com>,
	nofooter <nofooter@xilinx.com>,
	"thomas.petazzoni@free-electrons.com" 
	<thomas.petazzoni@free-electrons.com>
Subject: Re: Purpose of pci_remap_iospace
Date: Thu, 14 Jul 2016 17:12:01 +0200	[thread overview]
Message-ID: <5073702.5KYvV2f0PW@wuerfel> (raw)
In-Reply-To: <20160714145624.GB30657@red-moon>

On Thursday, July 14, 2016 3:56:24 PM CEST Lorenzo Pieralisi wrote:
> On Thu, Jul 14, 2016 at 01:32:13PM +0000, Bharat Kumar Gogada wrote:
> 
> [...]
> 
> > Hi Lorenzo,
> > 
> > I missed something in my device tree now I corrected it.
> > 
> > ranges = <0x01000000 0x00000000 0xe0000000 0x00000000 0xe0000000 0 0x00010000   //io
> 
> You have not missed anything, you changed the PCI bus address at
> which your host bridge responds to IO space and it must match
> your configuration.

I'd always recommend mapping the I/O space to PCI address zero, but
evidently the hardware is not configured that way here.

	Arnd

  parent reply	other threads:[~2016-07-14 15:12 UTC|newest]

Thread overview: 45+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-07-12  6:57 Purpose of pci_remap_iospace Bharat Kumar Gogada
2016-07-12  6:57 ` Bharat Kumar Gogada
2016-07-12  8:31 ` Arnd Bergmann
2016-07-12  8:31   ` Arnd Bergmann
2016-07-12  8:40   ` Bharat Kumar Gogada
2016-07-12  8:40     ` Bharat Kumar Gogada
2016-07-13  8:11   ` Bharat Kumar Gogada
2016-07-13  8:11     ` Bharat Kumar Gogada
2016-07-13  8:30     ` Arnd Bergmann
2016-07-13  8:30       ` Arnd Bergmann
2016-07-13 12:30       ` Bharat Kumar Gogada
2016-07-13 12:30         ` Bharat Kumar Gogada
2016-07-13 13:28         ` Arnd Bergmann
2016-07-13 13:28           ` Arnd Bergmann
2016-07-13 15:16           ` Bharat Kumar Gogada
2016-07-13 15:16             ` Bharat Kumar Gogada
2016-07-13 15:28             ` Arnd Bergmann
2016-07-13 15:28               ` Arnd Bergmann
2016-07-13 15:42               ` Liviu.Dudau
2016-07-13 15:42                 ` Liviu.Dudau
2016-07-13 16:13             ` Lorenzo Pieralisi
2016-07-13 16:13               ` Lorenzo Pieralisi
2016-07-13 13:46         ` Lorenzo Pieralisi
2016-07-13 13:46           ` Lorenzo Pieralisi
2016-07-14  6:03           ` Bharat Kumar Gogada
2016-07-14  6:03             ` Bharat Kumar Gogada
2016-07-14 13:32           ` Bharat Kumar Gogada
2016-07-14 13:32             ` Bharat Kumar Gogada
2016-07-14 14:56             ` Lorenzo Pieralisi
2016-07-14 14:56               ` Lorenzo Pieralisi
2016-07-14 15:05               ` Bharat Kumar Gogada
2016-07-14 15:05                 ` Bharat Kumar Gogada
2016-07-14 15:20                 ` Lorenzo Pieralisi
2016-07-14 15:20                   ` Lorenzo Pieralisi
2016-07-14 15:12               ` Arnd Bergmann [this message]
2016-07-14 15:12                 ` Arnd Bergmann
2016-07-14 15:27                 ` Lorenzo Pieralisi
2016-07-14 15:27                   ` Lorenzo Pieralisi
2016-07-15  5:21               ` Bharat Kumar Gogada
2016-07-15  5:21                 ` Bharat Kumar Gogada
2016-07-15  6:55                 ` Arnd Bergmann
2016-07-15  6:55                   ` Arnd Bergmann
2016-07-15  6:55                   ` Arnd Bergmann
2016-07-13 13:24     ` Liviu.Dudau
2016-07-13 13:24       ` Liviu.Dudau

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