linux-kernel - Re: [PATCH] [libata] Set proper ATA UDMA mode for bf548 according to system clock.

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Message-ID: <4751E1FD.60206@garzik.org>
Date:	Sat, 01 Dec 2007 17:36:45 -0500
From:	Jeff Garzik <jeff@...zik.org>
To:	sonic zhang <sonic.adi@...il.com>
CC:	Linux IDE <linux-ide@...r.kernel.org>,
	Linux Kernel <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] [libata] Set proper ATA UDMA mode for bf548 according
 to	system clock.

sonic zhang wrote:
> UDMA Mode - Frequency compatibility
> 
> UDMA5 - 100 MB/s   - SCLK  = 133 MHz
> UDMA4 - 66 MB/s    - SCLK >=  80 MHz
> UDMA3 - 44.4 MB/s  - SCLK >=  50 MHz
> UDMA2 - 33 MB/s    - SCLK >=  40 MHz
> 
> 
> Signed-off-by: Sonic Zhang <sonic.zhang@...log.com>
> ---
>  drivers/ata/pata_bf54x.c |    7 +++++++
>  1 files changed, 7 insertions(+), 0 deletions(-)

applied #upstream-fixes


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