From: Angus Clark <angus.clark@st.com>
To: Huang Shijie <b32955@freescale.com>
Cc: marex@denx.de, broonie@linaro.org, dwmw2@infradead.org,
Linus Walleij <linus.walleij@linaro.org>,
linux-spi@vger.kernel.org, linux-mtd@lists.infradead.org,
pekon@ti.com, sourav.poddar@ti.com,
Brian Norris <computersforpeace@gmail.com>,
Lee Jones <lee.jones@linaro.org>,
linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH 0/4] mtd: spi-nor: add a new framework for SPI NOR
Date: Wed, 4 Dec 2013 06:58:36 +0000 [thread overview]
Message-ID: <529ED29C.1030208@st.com> (raw)
In-Reply-To: <529E976E.4050104@freescale.com>
On 12/04/2013 02:46 AM, Huang Shijie wrote:
> 于 2013年11月29日 22:52, Angus Clark 写道:
>> int (*write_reg)(struct spi_nor_info *info,
>> uint8_t cmd, uint8_t *reg, int len,
>> int wren, int wtr);
> I guess you add the 'wren' for the issuing write-enable before issuing
> the 'cmd'.
>
> but what's 'wtr' for? i do not know what's the meaning of the 'wtr'.
>
'wtr' is for "Wait 'til Ready". Some register writes are instant, while others
require polling of the "Write In Progress" bit.
Cheers,
Angus
WARNING: multiple messages have this Message-ID (diff)
From: Angus Clark <angus.clark-qxv4g6HH51o@public.gmane.org>
To: Huang Shijie <b32955-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
Cc: Brian Norris
<computersforpeace-Re5JQEeQqe8AvxtiuMwx3w@public.gmane.org>,
<marex-ynQEQJNshbs@public.gmane.org>,
<broonie-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Lee Jones <lee.jones-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
Linus Walleij
<linus.walleij-QSEj5FYQhm4dnm+yROfE0A@public.gmane.org>,
<linux-spi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>,
<linux-mtd-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>,
<pekon-l0cyMroinI0@public.gmane.org>,
<sourav.poddar-l0cyMroinI0@public.gmane.org>,
<dwmw2-wEGCiKHe2LqWVfeAwA7xHQ@public.gmane.org>,
<linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org>
Subject: Re: [PATCH 0/4] mtd: spi-nor: add a new framework for SPI NOR
Date: Wed, 4 Dec 2013 06:58:36 +0000 [thread overview]
Message-ID: <529ED29C.1030208@st.com> (raw)
In-Reply-To: <529E976E.4050104-KZfg59tc24xl57MIdRCFDg@public.gmane.org>
On 12/04/2013 02:46 AM, Huang Shijie wrote:
> 于 2013年11月29日 22:52, Angus Clark 写道:
>> int (*write_reg)(struct spi_nor_info *info,
>> uint8_t cmd, uint8_t *reg, int len,
>> int wren, int wtr);
> I guess you add the 'wren' for the issuing write-enable before issuing
> the 'cmd'.
>
> but what's 'wtr' for? i do not know what's the meaning of the 'wtr'.
>
'wtr' is for "Wait 'til Ready". Some register writes are instant, while others
require polling of the "Write In Progress" bit.
Cheers,
Angus
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WARNING: multiple messages have this Message-ID (diff)
From: angus.clark@st.com (Angus Clark)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH 0/4] mtd: spi-nor: add a new framework for SPI NOR
Date: Wed, 4 Dec 2013 06:58:36 +0000 [thread overview]
Message-ID: <529ED29C.1030208@st.com> (raw)
In-Reply-To: <529E976E.4050104@freescale.com>
On 12/04/2013 02:46 AM, Huang Shijie wrote:
> ? 2013?11?29? 22:52, Angus Clark ??:
>> int (*write_reg)(struct spi_nor_info *info,
>> uint8_t cmd, uint8_t *reg, int len,
>> int wren, int wtr);
> I guess you add the 'wren' for the issuing write-enable before issuing
> the 'cmd'.
>
> but what's 'wtr' for? i do not know what's the meaning of the 'wtr'.
>
'wtr' is for "Wait 'til Ready". Some register writes are instant, while others
require polling of the "Write In Progress" bit.
Cheers,
Angus
next prev parent reply other threads:[~2013-12-04 6:58 UTC|newest]
Thread overview: 157+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-11-26 6:32 [PATCH 0/4] mtd: spi-nor: add a new framework for SPI NOR Huang Shijie
2013-11-26 6:32 ` Huang Shijie
2013-11-26 6:32 ` [PATCH 1/4] mtd: spi-nor: move the SPI NOR commands to a new header file Huang Shijie
2013-11-26 6:32 ` Huang Shijie
2013-11-26 7:42 ` Gupta, Pekon
2013-11-26 7:42 ` Gupta, Pekon
2013-11-26 8:53 ` Huang Shijie
2013-11-26 8:53 ` Huang Shijie
2013-11-26 14:48 ` Angus Clark
2013-11-26 14:48 ` Angus Clark
2013-11-26 6:32 ` [PATCH 2/4] mtd: spi-nor: add a new data structrue spi_nor{} Huang Shijie
2013-11-26 6:32 ` Huang Shijie
2013-11-26 11:42 ` Gupta, Pekon
2013-11-26 11:42 ` Gupta, Pekon
2013-11-27 4:35 ` Huang Shijie
2013-11-27 4:35 ` Huang Shijie
2013-11-27 9:32 ` Marek Vasut
2013-11-27 9:32 ` Marek Vasut
2013-11-27 10:24 ` Huang Shijie
2013-11-27 10:24 ` Huang Shijie
2013-11-27 10:27 ` Marek Vasut
2013-11-27 10:27 ` Marek Vasut
2013-11-26 6:32 ` [PATCH 3/4] mtd: spi-nor: add the framework for SPI NOR Huang Shijie
2013-11-26 6:32 ` Huang Shijie
2013-11-26 10:03 ` Gupta, Pekon
2013-11-26 10:03 ` Gupta, Pekon
2013-11-27 9:39 ` Marek Vasut
2013-11-27 9:39 ` Marek Vasut
2013-11-26 6:32 ` [PATCH 4/4] mtd: m25p80: use the new spi-nor APIs Huang Shijie
2013-11-26 6:32 ` Huang Shijie
2013-11-26 12:57 ` [PATCH 0/4] mtd: spi-nor: add a new framework for SPI NOR Angus Clark
2013-11-26 12:57 ` Angus Clark
2013-11-27 4:32 ` Brian Norris
2013-11-27 4:32 ` Brian Norris
2013-11-27 4:32 ` Brian Norris
2013-11-27 4:39 ` Huang Shijie
2013-11-27 4:39 ` Huang Shijie
2013-11-27 4:39 ` Huang Shijie
2013-11-29 14:52 ` Angus Clark
2013-11-29 14:52 ` Angus Clark
2013-11-29 14:52 ` Angus Clark
2013-12-02 10:06 ` Huang Shijie
2013-12-02 10:06 ` Huang Shijie
2013-12-02 10:06 ` Huang Shijie
2013-12-02 11:01 ` Gupta, Pekon
2013-12-02 11:01 ` Gupta, Pekon
2013-12-02 11:01 ` Gupta, Pekon
2013-12-02 11:19 ` Angus Clark
2013-12-02 11:19 ` Angus Clark
2013-12-03 6:20 ` Huang Shijie
2013-12-03 6:20 ` Huang Shijie
2013-12-03 6:20 ` Huang Shijie
2013-12-03 8:23 ` Lee Jones
2013-12-03 8:23 ` Lee Jones
2013-12-03 8:23 ` Lee Jones
2013-12-10 8:25 ` Brian Norris
2013-12-10 8:25 ` Brian Norris
2013-12-10 8:25 ` Brian Norris
2013-12-10 10:00 ` Lee Jones
2013-12-10 10:00 ` Lee Jones
2013-12-10 10:00 ` Lee Jones
2013-12-03 0:32 ` Marek Vasut
2013-12-03 0:32 ` Marek Vasut
2013-12-03 0:32 ` Marek Vasut
2013-12-03 10:36 ` Huang Shijie
2013-12-03 10:36 ` Huang Shijie
2013-12-03 10:36 ` Huang Shijie
2013-12-03 14:51 ` David Woodhouse
2013-12-03 14:51 ` David Woodhouse
2013-12-03 14:51 ` David Woodhouse
2013-12-04 18:44 ` Brian Norris
2013-12-04 18:44 ` Brian Norris
2013-12-04 18:44 ` Brian Norris
2013-12-05 7:12 ` Huang Shijie
2013-12-05 7:12 ` Huang Shijie
2013-12-05 7:12 ` Huang Shijie
2013-12-05 8:11 ` Brian Norris
2013-12-05 8:11 ` Brian Norris
2013-12-05 8:11 ` Brian Norris
2013-12-05 7:59 ` Huang Shijie
2013-12-05 7:59 ` Huang Shijie
2013-12-05 7:59 ` Huang Shijie
2013-12-05 9:20 ` Brian Norris
2013-12-05 9:20 ` Brian Norris
2013-12-05 9:20 ` Brian Norris
2013-12-06 3:07 ` Huang Shijie
2013-12-06 3:07 ` Huang Shijie
2013-12-06 3:07 ` Huang Shijie
2013-12-05 14:35 ` Angus Clark
2013-12-05 14:35 ` Angus Clark
2013-12-05 14:35 ` Angus Clark
2013-12-06 8:18 ` Huang Shijie
2013-12-06 8:18 ` Huang Shijie
2013-12-06 8:18 ` Huang Shijie
2013-12-10 9:08 ` Brian Norris
2013-12-10 9:08 ` Brian Norris
2013-12-10 9:08 ` Brian Norris
2013-12-04 2:46 ` Huang Shijie
2013-12-04 2:46 ` Huang Shijie
2013-12-04 2:46 ` Huang Shijie
2013-12-04 6:58 ` Angus Clark [this message]
2013-12-04 6:58 ` Angus Clark
2013-12-04 6:58 ` Angus Clark
2013-12-04 7:19 ` Gupta, Pekon
2013-12-04 7:19 ` Gupta, Pekon
2013-12-04 7:19 ` Gupta, Pekon
2013-12-04 8:21 ` Angus Clark
2013-12-04 8:21 ` Angus Clark
2013-12-04 8:21 ` Angus Clark
2013-12-04 15:36 ` Marek Vasut
2013-12-04 15:36 ` Marek Vasut
2013-12-04 15:36 ` Marek Vasut
2013-12-05 2:42 ` Huang Shijie
2013-12-05 2:42 ` Huang Shijie
2013-12-05 2:42 ` Huang Shijie
2013-12-05 5:43 ` Gupta, Pekon
2013-12-05 5:43 ` Gupta, Pekon
2013-12-05 5:43 ` Gupta, Pekon
2013-12-05 7:33 ` Huang Shijie
2013-12-05 7:33 ` Huang Shijie
2013-12-05 7:33 ` Huang Shijie
2013-11-27 9:27 ` Marek Vasut
2013-11-27 9:27 ` Marek Vasut
2013-11-27 9:47 ` Sourav Poddar
2013-11-27 9:47 ` Sourav Poddar
2013-11-27 10:06 ` Marek Vasut
2013-11-27 10:06 ` Marek Vasut
2013-11-27 10:56 ` Sourav Poddar
2013-11-27 10:56 ` Sourav Poddar
2013-12-02 23:59 ` Marek Vasut
2013-12-02 23:59 ` Marek Vasut
2013-12-03 10:01 ` Sourav Poddar
2013-12-03 10:01 ` Sourav Poddar
2013-12-03 13:42 ` Marek Vasut
2013-12-03 13:42 ` Marek Vasut
2013-12-03 13:50 ` Sourav Poddar
2013-12-03 13:50 ` Sourav Poddar
2013-12-03 14:19 ` Marek Vasut
2013-12-03 14:19 ` Marek Vasut
2013-12-03 14:31 ` Sourav Poddar
2013-12-03 14:31 ` Sourav Poddar
2013-12-03 15:09 ` Marek Vasut
2013-12-03 15:09 ` Marek Vasut
2013-12-03 15:16 ` Sourav Poddar
2013-12-03 15:16 ` Sourav Poddar
2013-12-03 15:35 ` Marek Vasut
2013-12-03 15:35 ` Marek Vasut
2013-12-03 15:23 ` David Woodhouse
2013-12-03 15:23 ` David Woodhouse
2013-12-03 18:28 ` Brian Norris
2013-12-03 18:28 ` Brian Norris
2013-12-03 23:41 ` Marek Vasut
2013-12-03 23:41 ` Marek Vasut
2013-11-27 10:19 ` Huang Shijie
2013-11-27 10:19 ` Huang Shijie
2013-12-03 0:00 ` Marek Vasut
2013-12-03 0:00 ` Marek Vasut
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