From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bartlomiej Zolnierkiewicz Subject: Re: [loongson-PATCH-v1 24/27] fixup for FUJITSU disk Date: Mon, 25 May 2009 16:56:24 +0200 Message-ID: <200905251656.25357.bzolnier@gmail.com> References: <1243230339.9819.18.camel@localhost.localdomain> <4A1A4A54.6090401@lemote.com> Mime-Version: 1.0 Content-Type: Text/Plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Return-path: In-Reply-To: <4A1A4A54.6090401@lemote.com> Content-Disposition: inline Sender: linux-scsi-owner@vger.kernel.org To: =?utf-8?q?=E8=83=A1=E6=B4=AA=E5=85=B5?= Cc: yanh@lemote.com, wuzhangjin@gmail.com, linux-mips@linux-mips.org, Ralf Baechle , IDE/ATA development list , Linux Kernel , linux-scsi , Philippe Vachon , Zhang Le , Zhang Fuxin , Arnaud Patard , loongson-dev@googlegroups.com, gnewsense-dev@nongnu.org, Nicholas Mc Guire , Liu Junliang , Erwan Lerale List-Id: linux-ide@vger.kernel.org On Monday 25 May 2009 09:35:48 =E8=83=A1=E6=B4=AA=E5=85=B5 wrote: > yanh =E5=86=99=E9=81=93: [...] > > the cs5536 pata driver have some geode platform dependent codes. We= can > > just ignore it, but the performance is poor(using hdparm to test it= ), > > which only get 22+ MB/s. we find it only use udma2. However if usin= g > > amd74xx driver, it can set udma5, and the speed can reach to 50+ MB= /s.=20 > > > > we will test whether this driver is working well without this patch= =2E > > > > Anyway, thanks your advice. > > =20 > Use the driver drivers/ata/pata_cs5536.c, unfortunately it also have = the=20 > same issue. Both drivers (pata_cs5536 & cs5536) should handle UDMA5. Could you please explain the issue with platform specific code a bit mo= re? Is it related to a cable detection by any chance? Thanks. Bart -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" i= n the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html