From mboxrd@z Thu Jan  1 00:00:00 1970
From: Marek Vasut <marex@denx.de>
Date: Mon, 5 May 2014 19:47:45 +0200
Subject: [U-Boot] [PATCH v2] dfu: Introduction of the
	"dfu_checksum_method" env variable for checksum method setting
In-Reply-To: <1399295786-30652-1-git-send-email-l.majewski@samsung.com>
References: <1396255729-6573-4-git-send-email-l.majewski@samsung.com>
	<1399295786-30652-1-git-send-email-l.majewski@samsung.com>
Message-ID: <201405051947.45371.marex@denx.de>
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To: u-boot@lists.denx.de

On Monday, May 05, 2014 at 03:16:26 PM, Lukasz Majewski wrote:
> Up till now the CRC32 of received data was calculated unconditionally.
> The standard crc32 implementation causes long delays when large images
> were uploaded.
> 
> The "dfu_checksum_method" environment variable gives the opportunity to
> enable on demand (when e.g. debugging) the crc32 calculation.
> It can be done without need to recompile the u-boot binary.
> 
> By default the crc32 is not calculated.
> 
> Tests results:
> 400 MiB ums.img file
> With 		crc32 calculation: 65 sec [avg 6.29 MB/s]
> Without 		crc32 calculation: 25 sec [avg 16.17 MB/s]
> 
> Signed-off-by: Lukasz Majewski <l.majewski@samsung.com>
> Cc: Marek Vasut <marex@denx.de>

Acked-by: Marek Vasut <marex@denx.de>

Best regards,
Marek Vasut