linux-kernel - Re: [RFT PATCH] mips: lemote2f_defconfig: convert to use libata PATA drivers

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Message-ID: <20151007173959.GC26187@blackmetal.musicnaut.iki.fi>
Date:	Wed, 7 Oct 2015 20:40:00 +0300
From:	Aaro Koskinen <aaro.koskinen@....fi>
To:	Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>
Cc:	linux-mips@...ux-mips.org, Ralf Baechle <ralf@...ux-mips.org>,
	linux-ide@...r.kernel.org, linux-kernel@...r.kernel.org,
	Huacai Chen <chenhc@...ote.com>
Subject: Re: [RFT PATCH] mips: lemote2f_defconfig: convert to use libata PATA
 drivers

Hi,

On Mon, Sep 14, 2015 at 05:51:47PM +0200, Bartlomiej Zolnierkiewicz wrote:
> IDE subsystem has been deprecated since 2009 and the majority
> (if not all) of Linux distributions have switched to use
> libata for ATA support exclusively.  However there are still
> some users (mostly old or/and embedded non-x86 systems) that
> have not converted from using IDE subsystem to libata PATA
> drivers.  This doesn't seem to be good thing in the long-term
> for Linux as while there is less and less PATA systems left
> in use:
> 
> * testing efforts are divided between two subsystems
> 
> * having duplicate drivers for same hardware confuses users
> 
> This patch converts lemote2f_defconfig to use libata PATA
> drivers.
> 
> PS This platform uses CS5536 chipset which (due to historical
> reasons) has basic support in AMD/nVidia PATA host driver and
> full support in a newer CS5536 PATA one (pata_cs5536).  Thus
> most likely this platform should switch to using the latter
> host driver.
> 
> Cc: Huacai Chen <chenhc@...ote.com>
> Signed-off-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@...sung.com>

Maybe too late but:

	Tested-by: Aaro Koskinen <aaro.koskinen@....fi>

I also tested PATA_CS5536 and that works too, but it gives a slightly
slower disk (27MB/s vs 33MB/s)...

A.
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