Re: [PATCH 0/6] mmc: sdhci-s3c: Fix base clock source management

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



Hi Jaehoon, Heiko,

On 13.01.2014 06:47, Jaehoon Chung wrote:
Hi, All.

On 01/13/2014 06:18 AM, Heiko Stübner 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@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@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 <heiko@xxxxxxxxx>
Acked-by: Heiko Stuebner <heiko@xxxxxxxxx>

Tested with exynos4 board.

Tested-by: Jaehoon Chung <jh80.chung@xxxxxxxxxxx>
Acked-by; Jaehoon Chung <jh80.chung@xxxxxxxxxxx>

Thank you both for testing and acking.

Best regards,
Tomasz
--
To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html




[Index of Archives]     [Linux SoC Development]     [Linux Rockchip Development]     [Linux USB Development]     [Video for Linux]     [Linux Audio Users]     [Linux SCSI]     [Yosemite News]

  Powered by Linux