From: Huang Shijie <shijie8@gmail.com>
To: thomas.langer@lantiq.com
Cc: devicetree@vger.kernel.org, shawn.guo@linaro.org,
b44548@freescale.com, dedekind1@gmail.com,
linux-doc@vger.kernel.org, b18965@freescale.com,
linux-spi@vger.kernel.org, b32955@freescale.com,
broonie@kernel.org, linux-mtd@lists.infradead.org,
kernel@pengutronix.de, lznuaa@gmail.com,
computersforpeace@gmail.com, dwmw2@infradead.org,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 0/8] Add the Quadspi driver for vf610-twr
Date: Wed, 4 Sep 2013 22:04:37 -0400 [thread overview]
Message-ID: <20130905020435.GA3970@gmail.com> (raw)
In-Reply-To: <593AEF6C47F46446852B067021A273D6D984000B@MUCSE039.lantiq.com>
On Wed, Sep 04, 2013 at 01:45:40PM +0000, thomas.langer@lantiq.com wrote:
> Hello Huang,
>
> >> In what way does the controller driver depend on those changes?
> > This driver needs the spi nor command to fill the LUT register, such as
> > OPCODE_WREN(0x06), so the patch 1 moves the spi nor command to a seprate
> > header spi-nor.h, and this driver includes this new header.
> >
> Then some questions come up:
> - Why does the spi controller need to know this?
The hardware works in this way.
> - What is this LUT register at all?
Please see the patch 1.
> - What happens if something different that a flash is connected and
> the data starts with one of these opcodes?
Submit a new patch to fix it.
thanks
Huang Shijie
WARNING: multiple messages have this Message-ID (diff)
From: shijie8@gmail.com (Huang Shijie)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 0/8] Add the Quadspi driver for vf610-twr
Date: Wed, 4 Sep 2013 22:04:37 -0400 [thread overview]
Message-ID: <20130905020435.GA3970@gmail.com> (raw)
In-Reply-To: <593AEF6C47F46446852B067021A273D6D984000B@MUCSE039.lantiq.com>
On Wed, Sep 04, 2013 at 01:45:40PM +0000, thomas.langer at lantiq.com wrote:
> Hello Huang,
>
> >> In what way does the controller driver depend on those changes?
> > This driver needs the spi nor command to fill the LUT register, such as
> > OPCODE_WREN(0x06), so the patch 1 moves the spi nor command to a seprate
> > header spi-nor.h, and this driver includes this new header.
> >
> Then some questions come up:
> - Why does the spi controller need to know this?
The hardware works in this way.
> - What is this LUT register at all?
Please see the patch 1.
> - What happens if something different that a flash is connected and
> the data starts with one of these opcodes?
Submit a new patch to fix it.
thanks
Huang Shijie
WARNING: multiple messages have this Message-ID (diff)
From: Huang Shijie <shijie8@gmail.com>
To: thomas.langer@lantiq.com
Cc: broonie@kernel.org, b32955@freescale.com,
devicetree@vger.kernel.org, computersforpeace@gmail.com,
b44548@freescale.com, dedekind1@gmail.com,
linux-doc@vger.kernel.org, b18965@freescale.com,
linux-spi@vger.kernel.org, linux-mtd@lists.infradead.org,
kernel@pengutronix.de, lznuaa@gmail.com, shawn.guo@linaro.org,
dwmw2@infradead.org, linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v3 0/8] Add the Quadspi driver for vf610-twr
Date: Wed, 4 Sep 2013 22:04:37 -0400 [thread overview]
Message-ID: <20130905020435.GA3970@gmail.com> (raw)
In-Reply-To: <593AEF6C47F46446852B067021A273D6D984000B@MUCSE039.lantiq.com>
On Wed, Sep 04, 2013 at 01:45:40PM +0000, thomas.langer@lantiq.com wrote:
> Hello Huang,
>
> >> In what way does the controller driver depend on those changes?
> > This driver needs the spi nor command to fill the LUT register, such as
> > OPCODE_WREN(0x06), so the patch 1 moves the spi nor command to a seprate
> > header spi-nor.h, and this driver includes this new header.
> >
> Then some questions come up:
> - Why does the spi controller need to know this?
The hardware works in this way.
> - What is this LUT register at all?
Please see the patch 1.
> - What happens if something different that a flash is connected and
> the data starts with one of these opcodes?
Submit a new patch to fix it.
thanks
Huang Shijie
next prev parent reply other threads:[~2013-09-05 2:04 UTC|newest]
Thread overview: 241+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-08-30 2:07 [PATCH v3 0/8] Add the Quadspi driver for vf610-twr Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` [PATCH v3 1/8] mtd: m25p80: move the spi-nor commands to a header Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` [PATCH v3 2/8] mtd: m25p80: add support for Spansion s25fl128s chip Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` [PATCH v3 3/8] mtd: m25p80: add the quad-read support Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` [PATCH v3 4/8] mtd: m25p80: add the DDR " Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` [PATCH v3 5/8] spi: Add Freescale QuadSpi driver Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-09-10 18:09 ` Mark Brown
2013-09-10 18:09 ` Mark Brown
2013-09-10 18:09 ` Mark Brown
2013-09-11 2:40 ` Huang Shijie
2013-09-11 2:40 ` Huang Shijie
2013-09-11 2:40 ` Huang Shijie
2013-09-11 10:39 ` Mark Brown
2013-09-11 10:39 ` Mark Brown
2013-09-11 10:39 ` Mark Brown
2013-08-30 2:07 ` [PATCH v3 6/8] Documentation: add the binding file for Quadspi driver Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` [PATCH v3 7/8] ARM: dts: vf610: change the PAD values for Quadspi Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` [PATCH v3 8/8] ARM: dts: vf610-twr: Add SPI NOR support Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-08-30 2:07 ` Huang Shijie
2013-09-04 2:16 ` [PATCH v3 0/8] Add the Quadspi driver for vf610-twr Huang Shijie
2013-09-04 2:16 ` Huang Shijie
2013-09-04 2:16 ` Huang Shijie
2013-09-04 9:55 ` Mark Brown
2013-09-04 9:55 ` Mark Brown
2013-09-04 9:55 ` Mark Brown
2013-09-04 10:29 ` Huang Shijie
2013-09-04 10:29 ` Huang Shijie
2013-09-04 10:29 ` Huang Shijie
2013-09-04 11:33 ` Mark Brown
2013-09-04 11:33 ` Mark Brown
2013-09-04 11:33 ` Mark Brown
2013-09-05 1:43 ` Huang Shijie
2013-09-05 1:43 ` Huang Shijie
2013-09-05 1:43 ` Huang Shijie
2013-09-04 13:45 ` thomas.langer
2013-09-04 13:45 ` thomas.langer
2013-09-04 13:45 ` thomas.langer at lantiq.com
2013-09-05 2:04 ` Huang Shijie [this message]
2013-09-05 2:04 ` Huang Shijie
2013-09-05 2:04 ` Huang Shijie
2013-09-05 4:25 ` Gupta, Pekon
2013-09-05 4:25 ` Gupta, Pekon
2013-09-05 4:25 ` Gupta, Pekon
2013-09-05 5:34 ` Huang Shijie
2013-09-05 5:34 ` Huang Shijie
2013-09-05 5:34 ` Huang Shijie
2013-09-05 6:32 ` Gupta, Pekon
2013-09-05 6:32 ` Gupta, Pekon
2013-09-05 6:32 ` Gupta, Pekon
2013-09-05 7:45 ` Huang Shijie
2013-09-05 7:45 ` Huang Shijie
2013-09-05 7:45 ` Huang Shijie
2013-09-05 9:11 ` Gupta, Pekon
2013-09-05 9:11 ` Gupta, Pekon
2013-09-05 9:11 ` Gupta, Pekon
2013-09-05 9:30 ` Huang Shijie
2013-09-05 9:30 ` Huang Shijie
2013-09-05 9:30 ` Huang Shijie
2013-09-05 13:50 ` Mark Brown
2013-09-05 13:50 ` Mark Brown
2013-09-05 13:50 ` Mark Brown
2013-09-06 2:36 ` Huang Shijie
2013-09-06 2:36 ` Huang Shijie
2013-09-06 2:36 ` Huang Shijie
2013-09-08 13:47 ` Mark Brown
2013-09-08 13:47 ` Mark Brown
2013-09-08 13:47 ` Mark Brown
2013-09-09 3:07 ` Huang Shijie
2013-09-09 3:07 ` Huang Shijie
2013-09-09 3:07 ` Huang Shijie
2013-09-09 15:14 ` Mark Brown
2013-09-09 15:14 ` Mark Brown
2013-09-09 15:14 ` Mark Brown
2013-09-10 6:59 ` Huang Shijie
2013-09-10 6:59 ` Huang Shijie
2013-09-10 6:59 ` Huang Shijie
2013-09-10 18:07 ` Mark Brown
2013-09-10 18:07 ` Mark Brown
2013-09-10 18:07 ` Mark Brown
2013-09-11 2:38 ` Huang Shijie
2013-09-11 2:38 ` Huang Shijie
2013-09-11 2:38 ` Huang Shijie
2013-09-11 10:41 ` Mark Brown
2013-09-11 10:41 ` Mark Brown
2013-09-11 10:41 ` Mark Brown
2013-09-11 10:54 ` Huang Shijie
2013-09-11 10:54 ` Huang Shijie
2013-09-11 10:54 ` Huang Shijie
2013-09-11 11:30 ` Mark Brown
2013-09-11 11:30 ` Mark Brown
2013-09-11 11:30 ` Mark Brown
2013-09-11 12:26 ` Gupta, Pekon
2013-09-11 12:26 ` Gupta, Pekon
2013-09-11 12:26 ` Gupta, Pekon
2013-09-11 12:35 ` Mark Brown
2013-09-11 12:35 ` Mark Brown
2013-09-11 12:35 ` Mark Brown
2013-09-12 9:18 ` Huang Shijie
2013-09-12 9:18 ` Huang Shijie
2013-09-12 9:18 ` Huang Shijie
2013-09-12 10:20 ` Mark Brown
2013-09-12 10:20 ` Mark Brown
2013-09-12 10:20 ` Mark Brown
2013-09-13 3:30 ` Huang Shijie
2013-09-13 3:30 ` Huang Shijie
2013-09-13 3:30 ` Huang Shijie
2013-09-12 15:32 ` David Woodhouse
2013-09-12 15:32 ` David Woodhouse
2013-09-12 15:32 ` David Woodhouse
2013-09-12 10:39 ` David Woodhouse
2013-09-12 10:39 ` David Woodhouse
2013-09-12 10:39 ` David Woodhouse
2013-09-12 10:56 ` Gupta, Pekon
2013-09-12 10:56 ` Gupta, Pekon
2013-09-12 10:56 ` Gupta, Pekon
2013-09-12 11:17 ` David Woodhouse
2013-09-12 11:17 ` David Woodhouse
2013-09-12 11:17 ` David Woodhouse
2013-09-12 11:48 ` Mark Brown
2013-09-12 11:48 ` Mark Brown
2013-09-12 11:48 ` Mark Brown
2013-09-12 11:55 ` Russell King - ARM Linux
2013-09-12 11:55 ` Russell King - ARM Linux
2013-09-12 11:55 ` Russell King - ARM Linux
2013-09-12 13:24 ` Mark Brown
2013-09-12 13:24 ` Mark Brown
2013-09-12 13:24 ` Mark Brown
2013-09-12 13:25 ` Ricard Wanderlof
2013-09-12 13:25 ` Ricard Wanderlof
2013-09-12 14:10 ` Russell King - ARM Linux
2013-09-12 14:10 ` Russell King - ARM Linux
2013-09-12 14:10 ` Russell King - ARM Linux
2013-09-12 12:02 ` David Woodhouse
2013-09-12 12:02 ` David Woodhouse
2013-09-12 12:02 ` David Woodhouse
2013-09-12 13:43 ` Mark Brown
2013-09-12 13:43 ` Mark Brown
2013-09-12 13:43 ` Mark Brown
2013-09-12 14:03 ` David Woodhouse
2013-09-12 14:03 ` David Woodhouse
2013-09-12 14:03 ` David Woodhouse
2013-09-12 14:40 ` Mark Brown
2013-09-12 14:40 ` Mark Brown
2013-09-12 14:40 ` Mark Brown
2013-09-13 3:14 ` Huang Shijie
2013-09-13 3:14 ` Huang Shijie
2013-09-13 3:14 ` Huang Shijie
2013-09-11 14:05 ` David Woodhouse
2013-09-11 14:05 ` David Woodhouse
2013-09-11 14:05 ` David Woodhouse
2013-09-11 15:07 ` Mark Brown
2013-09-11 15:07 ` Mark Brown
2013-09-11 15:07 ` Mark Brown
[not found] ` <20130909151450 <52318953.6090405@freescale.com>
[not found] ` <52318953.6090405@freescale.com>
2013-09-12 9:50 ` David Woodhouse
2013-09-12 9:50 ` David Woodhouse
2013-09-12 9:50 ` David Woodhouse
2013-09-12 10:19 ` Mark Brown
2013-09-12 10:19 ` Mark Brown
2013-09-12 10:19 ` Mark Brown
2013-09-13 2:58 ` Huang Shijie
2013-09-13 2:58 ` Huang Shijie
2013-09-13 2:58 ` Huang Shijie
2013-09-12 15:22 ` David Woodhouse
2013-09-12 15:22 ` David Woodhouse
2013-09-12 15:22 ` David Woodhouse
2013-09-13 4:12 ` Huang Shijie
2013-09-13 4:12 ` Huang Shijie
2013-09-13 4:12 ` Huang Shijie
2013-09-12 16:26 ` David Woodhouse
2013-09-12 16:26 ` David Woodhouse
2013-09-12 16:26 ` David Woodhouse
2013-09-13 3:06 ` Huang Shijie
2013-09-13 3:06 ` Huang Shijie
2013-09-13 3:06 ` Huang Shijie
2013-09-12 16:27 ` Fabio Estevam
2013-09-12 16:27 ` Fabio Estevam
2013-09-12 16:27 ` Fabio Estevam
2013-09-13 2:21 ` Huang Shijie
2013-09-13 2:21 ` Huang Shijie
2013-09-13 2:21 ` Huang Shijie
2013-09-12 20:56 ` Mark Brown
2013-09-12 20:56 ` Mark Brown
2013-09-12 20:56 ` Mark Brown
2013-09-13 4:55 ` Huang Shijie
2013-09-13 4:55 ` Huang Shijie
2013-09-13 4:55 ` Huang Shijie
2013-09-13 10:21 ` Mark Brown
2013-09-13 10:21 ` Mark Brown
2013-09-13 10:21 ` Mark Brown
2013-09-16 2:40 ` Huang Shijie
2013-09-16 2:40 ` Huang Shijie
2013-09-16 2:40 ` Huang Shijie
2013-09-16 10:19 ` Mark Brown
2013-09-16 10:19 ` Mark Brown
2013-09-16 10:19 ` Mark Brown
2013-09-16 10:27 ` Huang Shijie
2013-09-16 10:27 ` Huang Shijie
2013-09-16 10:27 ` Huang Shijie
2013-09-16 11:06 ` Mark Brown
2013-09-16 11:06 ` Mark Brown
2013-09-16 11:06 ` Mark Brown
2013-09-17 2:14 ` Huang Shijie
2013-09-17 2:14 ` Huang Shijie
2013-09-17 2:14 ` Huang Shijie
2013-09-17 10:51 ` Mark Brown
2013-09-17 10:51 ` Mark Brown
2013-09-17 10:51 ` Mark Brown
2013-09-17 15:05 ` Gerhard Sittig
2013-09-17 15:05 ` Gerhard Sittig
2013-09-17 15:05 ` Gerhard Sittig
2013-09-17 16:49 ` Gerhard Sittig
2013-09-17 16:49 ` Gerhard Sittig
2013-09-17 16:49 ` Gerhard Sittig
2013-09-17 19:54 ` Sourav Poddar
2013-09-17 19:54 ` Sourav Poddar
2013-09-17 19:13 ` Mark Brown
2013-09-17 19:13 ` Mark Brown
2013-09-17 19:13 ` Mark Brown
2013-09-18 15:40 ` David Woodhouse
2013-09-18 15:40 ` David Woodhouse
2013-09-18 15:40 ` David Woodhouse
2013-09-18 16:00 ` Mark Brown
2013-09-18 16:00 ` Mark Brown
2013-09-18 16:00 ` Mark Brown
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