From: Brian Norris <computersforpeace@gmail.com>
To: Frank.Li@freescale.com
Cc: lznuaa@gmail.com, linux-mtd@lists.infradead.org,
Allen Xu <b45815@freescale.com>,
shijie8@gmail.com
Subject: Re: [PATCH 1/1] mtd: fsl-quadspi: improve read performance by increase AHB transfer size
Date: Thu, 5 Feb 2015 20:05:18 -0800 [thread overview]
Message-ID: <20150206040518.GE18140@ld-irv-0074> (raw)
In-Reply-To: <1421166536-13601-1-git-send-email-Frank.Li@freescale.com>
On Wed, Jan 14, 2015 at 12:28:56AM +0800, Frank.Li@freescale.com wrote:
> From: Allen Xu <b45815@freescale.com>
>
> Set AHB transfer size to 1K which improved the read performance.
>
> Add ahb_buf_size field in fsl_qspi_devtype_data to denote the size for
> different SoC.
>
> Before:
>
> root@imx6qdlsolo:~# dd if=/dev/mtd1 of=/dev/null bs=1M count=16
> 16+0 records in
> 16+0 records out
> 16777216 bytes (17 MB) copied, 0.472183 s, 25.1 MB/s
>
> After:
>
> root@imx6qdlsolo:~# dd if=/dev/mtd1 of=/dev/null bs=1M count=16
> 16+0 records in
> 16+0 records out
> 16777216 bytes (17 MB) copied, 0.369439 s, 29.5 MB/s
>
> Signed-off-by: Allen Xu <b45815@freescale.com>
> Signed-off-by: Huang Shijie <shijie8@gmail.com>
> Signed-off-by: Frank Li <Frank.Li@freescale.com>
Pushed to l2-mtd.git. Thanks.
Brian
prev parent reply other threads:[~2015-02-06 4:05 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-13 16:28 [PATCH 1/1] mtd: fsl-quadspi: improve read performance by increase AHB transfer size Frank.Li
2015-01-14 1:20 ` Huang Shijie
2015-02-06 4:05 ` Brian Norris [this message]
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