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From: Linus Walleij <linus.walleij@linaro.org>
To: christophe.kerello@st.com
Cc: "Boris Brezillon" <boris.brezillon@bootlin.com>,
	"Miquèl Raynal" <miquel.raynal@bootlin.com>,
	"Richard Weinberger" <richard@nod.at>,
	"David Woodhouse" <dwmw2@infradead.org>,
	"Brian Norris" <computersforpeace@gmail.com>,
	"Mark Vasut" <marek.vasut@gmail.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Mark Rutland" <mark.rutland@arm.com>,
	linux-mtd@lists.infradead.org,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS"
	<devicetree@vger.kernel.org>,
	linux-stm32@st-md-mailman.stormreply.com
Subject: Re: [ v3 2/3] mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver
Date: Thu, 13 Dec 2018 11:45:35 +0100	[thread overview]
Message-ID: <CACRpkdbiX=9tDnE+tR7Jj-QEY_=_MvS9v8Jg8X7MzQcX7aPp-Q@mail.gmail.com> (raw)
In-Reply-To: <7c295246-8756-9363-a891-856ddf7af92b@st.com>

On Fri, Dec 7, 2018 at 5:53 PM Christophe Kerello
<christophe.kerello@st.com> wrote:
> On 12/7/18 10:06 AM, Linus Walleij wrote:

> Based on FMC2 datasheet,
> The FMC2 controller includes 2 memory controllers:
>   - the NOR/PSRAM memory controller
>   - the NAND memory controller
>
> The NOR/PSRAM controller mapping is starting at 0.
> The NAND controller mapping is starting at 0x80.
>
> We have only planned to develop a driver for the NAND memory controller.
> There is currently no customer request to develop the NOR/PSRAM memory
> controller.

OK I get it, so there is no FSMC (v1), but a NOR controller, thanks!

If people need to access the NOR controller I think they can just patch
your driver to handle both or have a second driver on the side
(I suspect the pins are anyways set up such that you can just
use either NOR or NAND.)

Yours,
Linus Walleij

  reply	other threads:[~2018-12-13 10:45 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-11-29 16:41 [ v3 0/3] mtd: rawnand: add STM32 FMC2 NAND flash controller driver Christophe Kerello
2018-11-29 16:41 ` [ v3 1/3] dt-bindings: mtd: stm32_fmc2: add STM32 FMC2 NAND controller documentation Christophe Kerello
2018-12-07 23:42   ` Rob Herring
2018-11-29 16:41 ` [ v3 2/3] mtd: rawnand: stm32_fmc2: add STM32 FMC2 NAND flash controller driver Christophe Kerello
2018-12-07  9:06   ` Linus Walleij
2018-12-07 10:21     ` [Linux-stm32] " Benjamin GAIGNARD
2018-12-07 12:47       ` Linus Walleij
2018-12-07 16:53     ` Christophe Kerello
2018-12-13 10:45       ` Linus Walleij [this message]
2018-12-07 10:18   ` Miquel Raynal
2018-12-07 10:53     ` Christophe Kerello
2018-11-29 16:41 ` [ v3 3/3] mtd: rawnand: stm32_fmc2: add manual mode Christophe Kerello
2018-12-07  9:16   ` Linus Walleij
2018-12-07 10:56     ` Christophe Kerello

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