From: Sourav Poddar <sourav.poddar@ti.com>
To: yuhang wang <wangyuhang2014@gmail.com>
Cc: linux-mtd <linux-mtd-bounces@lists.infradead.org>,
Johannes Stezenbach <js@sig21.net>,
Grant Likely <grant.likely@secretlab.ca>,
Mark Brown <broonie@kernel.org>,
linux-mtd@lists.infradead.org, Thomas.Betker@rohde-schwarz.com,
spi-devel-general@lists.sourceforge.net,
linux-arm-kernel@lists.infradead.org
Subject: Re: SPI: DUAL/QUAD support
Date: Fri, 5 Jul 2013 14:38:36 +0530 [thread overview]
Message-ID: <51D68D14.7090606@ti.com> (raw)
In-Reply-To: <CAHSAbzM1PGoMXFNOmB7guDsVWYnRoRy89-bufHYpPz5+odnd8w@mail.gmail.com>
On Friday 05 July 2013 02:37 PM, yuhang wang wrote:
>> if (!quad_mode)
>> dra7xxx_writel(qspi, qspi->cmd | QSPI_RD_SNGL,
>> QSPI_SPI_CMD_REG);
>> else
>> dra7xxx_writel(qspi, qspi->cmd | QSPI_RD_QUAD,
>> QSPI_SPI_CMD_REG);
>> .......
>> }
> So what do you based on to set variable quad_mode.
Best way should be to check for flash device id and manufacture data.
Based on which you
can decide whether your flash supports quad bits or not.
next prev parent reply other threads:[~2013-07-05 9:08 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-07-04 11:36 SPI: DUAL/QUAD support yuhang wang
2013-07-04 13:00 ` Johannes Stezenbach
2013-07-04 14:58 ` Thomas.Betker
2013-07-04 15:49 ` Mark Brown
2013-07-04 16:04 ` Thomas.Betker
2013-07-05 6:25 ` yuhang wang
2013-07-05 6:45 ` Gupta, Pekon
2013-07-05 7:35 ` Johannes Stezenbach
2013-07-05 7:41 ` Sourav Poddar
2013-07-05 8:04 ` Gupta, Pekon
2013-07-05 7:40 ` Sourav Poddar
2013-07-05 8:48 ` yuhang wang
2013-07-05 8:55 ` Sourav Poddar
2013-07-05 9:07 ` yuhang wang
2013-07-05 9:08 ` Sourav Poddar [this message]
2013-07-05 9:17 ` yuhang wang
2013-07-05 9:27 ` Sourav Poddar
2013-07-05 10:24 ` yuhang wang
2013-07-05 14:34 ` Johannes Stezenbach
2013-07-05 15:41 ` yuhang wang
2013-07-04 14:36 ` Mark Brown
2013-07-04 18:06 ` Johannes Stezenbach
2013-07-04 19:12 ` Mark Brown
2013-07-05 9:41 ` yuhang wang
2013-07-05 10:12 ` Mark Brown
-- strict thread matches above, loose matches on Subject: below --
2013-07-04 7:07 SPI : " 王宇航
2013-07-04 9:00 ` Mark Brown
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