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Date: Mon, 9 Mar 2015 10:31:31 -0700
From: Brian Norris <computersforpeace@gmail.com>
To: =?utf-8?B?UmFmYcWCIE1pxYJlY2tp?= <zajec5@gmail.com>
Subject: Re: [PATCH 3/3] mtd: nand: add NAND driver for Broadcom STB NAND
 controller
Message-ID: <20150309173131.GT18140@ld-irv-0074>
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Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
 Florian Fainelli <f.fainelli@gmail.com>, sbranden@broadcom.com,
 Corneliu Doban <cdoban@broadcom.com>, Ray Jui <rjui@broadcom.com>,
 Kevin Cernekee <cernekee@gmail.com>,
 Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
 Jonathan Richardson <jonathar@broadcom.com>,
 Anatol Pomazao <anatol@google.com>, bcm-kernel-feedback-list@broadcom.com,
 "linux-mtd@lists.infradead.org" <linux-mtd@lists.infradead.org>,
 Dmitry Torokhov <dtor@google.com>
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On Sat, Mar 07, 2015 at 02:21:26PM +0100, Rafał Miłecki wrote:
> On 7 March 2015 at 02:18, Brian Norris <computersforpeace@gmail.com> wrote:
> > +       /* NAND register range */
> > +       res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
> > +       ctrl->nand_base = devm_ioremap_resource(dev, res);
> > +       if (!ctrl->nand_base)
> > +               return -ENODEV;
> 
> This is what I got during my first test:
> brcmstb_nand 11315e0.nand: can't request region for resource [mem
> 0x011315e0-0x011325df]
> Unable to handle kernel paging request at virtual address fffffff0
> (not sure why yet).
> 
> Hint: devm_ioremap_resource does never return NULL

Thanks, fixed in 3 places.

I expect you've figured out your problem here by now.

Brian