From mboxrd@z Thu Jan 1 00:00:00 1970 From: t.figa@samsung.com (Tomasz Figa) Date: Mon, 13 Jan 2014 13:43:59 +0100 Subject: [PATCH 0/6] mmc: sdhci-s3c: Fix base clock source management In-Reply-To: <52D37DE7.1000407@samsung.com> References: <1389476346-20396-1-git-send-email-tomasz.figa@gmail.com> <1704043.sYrCOYas4N@phil> <52D37DE7.1000407@samsung.com> Message-ID: <52D3DF8F.4000109@samsung.com> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org Hi Jaehoon, Heiko, On 13.01.2014 06:47, Jaehoon Chung wrote: > Hi, All. > > On 01/13/2014 06:18 AM, Heiko St?bner wrote: >> Am Samstag, 11. Januar 2014, 22:39:00 schrieb Tomasz Figa: >>> Tested on S3C6410-based Mini6410 board, with following performance >>> figures: >>> >>> * Before this series (133 MHz HCLK always selected, leading to at most >>> 33 MHz card clock): >>> >>> root at tiny6410:~# hdparm -t /dev/mmcblk0 >>> >>> /dev/mmcblk0: >>> Timing buffered disk reads: 42 MB in 3.10 seconds = 13.54 MB/sec >> >> # hdparm -t /dev/mmcblk0 >> >> /dev/mmcblk0: >> Timing buffered disk reads: 44 MB in 3.12 seconds = 14.11 MB/sec > > /dev/mmcblk0: > Timing buffered disk reads: 38 MB in 3.14 seconds = 12.12 MB/sec >> >> >>> * After this series (48 MHz EPLL clock selected, leading to 48 MHz card >>> clock): >>> >>> root at tiny6410:~# hdparm -t /dev/mmcblk0 >>> >>> /dev/mmcblk0: >>> Timing buffered disk reads: 56 MB in 3.04 seconds = 18.41 MB/sec >> >> # hdparm -t /dev/mmcblk0 >> >> /dev/mmcblk0: >> Timing buffered disk reads: 48 MB in 3.01 seconds = 15.94 MB/sec > > /dev/mmcblk0: > Timing buffered disk reads: 56 MB in 3.05 seconds = 18.35 MB/sec >> >> >> So on a s3c2416: >> Tested-by: Heiko Stuebner >> Acked-by: Heiko Stuebner > > Tested with exynos4 board. > > Tested-by: Jaehoon Chung > Acked-by; Jaehoon Chung Thank you both for testing and acking. Best regards, Tomasz