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Date: Sat, 7 Mar 2015 14:21:26 +0100
Message-ID: <CACna6rzL2=aUjvDw0ccRCBd1tu2QOavZf15CiZfZeimMDoWEGw@mail.gmail.com>
Subject: Re: [PATCH 3/3] mtd: nand: add NAND driver for Broadcom STB NAND
 controller
From: =?UTF-8?B?UmFmYcWCIE1pxYJlY2tp?= <zajec5@gmail.com>
To: Brian Norris <computersforpeace@gmail.com>
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Cc: "devicetree@vger.kernel.org" <devicetree@vger.kernel.org>,
 Florian Fainelli <f.fainelli@gmail.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,
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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