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From: Stefano Babic <sbabic@denx.de>
To: u-boot@lists.denx.de
Subject: [U-Boot] [PATCH v2] spi: mxc_spi: Update pre and post divider algorithm
Date: Wed, 26 Jun 2013 16:24:33 +0200	[thread overview]
Message-ID: <51CAF9A1.1010906@denx.de> (raw)
In-Reply-To: <1368249954-8790-1-git-send-email-dirk.behme@gmail.com>

On 11/05/2013 07:25, Dirk Behme wrote:
> The spi clock divisor is of the form x * (2**y),  or  x  << y, where x is
> 1 to 16, and y is 0 to 15. Note the similarity with floating point numbers.
> Convert the desired divisor to the smallest number which is >= desired divisor,
> and can be represented in this form. The previous algorithm chose a divisor
> which could be almost twice as large as needed.
> 
> Signed-off-by: Troy Kisky <troy.kisky@boundarydevices.com>
> Signed-off-by: Dirk Behme <dirk.behme@gmail.com>
> ---

Applied to u-boot-imx as a fix, thanks !

Best regards,
Stefano Babic


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      parent reply	other threads:[~2013-06-26 14:24 UTC|newest]

Thread overview: 7+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2013-05-11  5:25 [U-Boot] [PATCH v2] spi: mxc_spi: Update pre and post divider algorithm Dirk Behme
2013-06-12  5:28 ` Dirk Behme
2013-06-12 15:42   ` Stefano Babic
2013-06-12 15:47     ` Jagan Teki
2013-06-12 16:00       ` Stefano Babic
2013-06-12 16:13         ` Jagan Teki
2013-06-26 14:24 ` Stefano Babic [this message]

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