Haibo Chen 348487cb28 mmc: sdhci: use pipeline mmc requests to improve performance ... This patch is based on the patches by Per Forlin, Tony Lin and Ryan QIAN. This patch complete the API 'post_req' and 'pre_req' in sdhci host side, Test Env: 1. i.MX6Q-SABREAUTO board, CPU @ 996MHz, use ADMA in uSDHC controller. 2. Test command: $ echo 1 > /proc/sys/vm/drop_caches write to sd card: $ dd if=/dev/zero of=/dev/mmcblk0 bs=1M count=2000 conv=fsync read the sd card: $ dd if=/dev/mmcblk0 of=/dev/null bs=1M count=2000 3. TOSHIBA 16GB SD3.0 card, running at 4 bit, SDR104 @ 198MHZ Performance with and without this patch: ------------------------------------------------- | | read speed | write speed | |------------------------------------------------ | with this patch | ~76.7 MB/s | ~23.3 MB/s | |------------------------------------------------ |without this patch | ~60.5 MB/s | ~22.5 MB/s | ------------------------------------------------- 4. SanDisk 8GB SD3.0 card, running at 4 bit, DDR50 @ 50MHZ Performance with and without this patch: ------------------------------------------------- | | read speed | write speed | |------------------------------------------------ | with this patch | ~40.5 MB/s | ~15.6 MB/s | |------------------------------------------------ |without this patch | ~36.1 MB/s | ~14.1 MB/s | ------------------------------------------------- 5. Kingston 8GB SD2.0 card, running at 4 bit, High-speed @ 50MHZ Performance with and without this patch: ------------------------------------------------- | | read speed | write speed | |------------------------------------------------ | with this patch | ~22.7 MB/s | ~8.2 MB/s | |------------------------------------------------ |without this patch | ~21.3 MB/s | ~8.0 MB/s | ------------------------------------------------- 6. About eMMC, Sandisk 8GB eMMC on i.MX6DL-sabresd board, CPU @ 792MHZ, eMMC running at 8 bit, DDR52 @ 52MHZ. Performance with and without this patch: ------------------------------------------------- | | read speed | write speed | |------------------------------------------------ | with this patch | ~37.3 MB/s | ~10.5 MB/s | |------------------------------------------------ |without this patch | ~33.4 MB/s | ~10.5 MB/s | ------------------------------------------------- Signed-off-by: Haibo Chen <haibo.chen@freescale.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>		2015-01-19 09:56:25 +01:00
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boot.h
card.h	mmc: core: Report firmware version for eMMC 5.0 devices.	2014-11-10 12:40:36 +01:00
core.h	mmc: core: Let mmc_send_tuning() to take struct mmc_host* as parameter	2014-12-08 09:11:04 +01:00
dw_mmc.h	mmc: dw_mmc: Protect read-modify-write of INTMASK with a lock	2015-01-19 09:56:05 +01:00
host.h	mmc: slot-gpio: Rework how to handle allocation of slot-gpio data	2015-01-19 09:56:18 +01:00
mmc.h	mmc: core: Make tuning block patterns static	2015-01-19 09:56:24 +01:00
pm.h
sd.h
sdhci-pci-data.h
sdhci-spear.h	mmc: sdhci-spear: remove support for power gpio	2014-03-04 16:28:44 -05:00
sdhci.h	mmc: sdhci: use pipeline mmc requests to improve performance	2015-01-19 09:56:25 +01:00
sdio.h
sdio_func.h	mmc: core: Don't export the to_sdio_driver macro	2014-11-10 12:40:32 +01:00
sdio_ids.h	brcmfmac: add BCM4354 SDIO interface support	2014-03-17 13:44:14 -04:00
sh_mmcif.h	mmc: sh_mmcif: revision-specific CLK_CTRL2 handling	2013-08-25 00:10:18 -04:00
sh_mobile_sdhi.h	mmc: sh_mobile_sdhi: Remove .set_pwr() callback from platform data	2013-08-24 23:58:10 -04:00
slot-gpio.h	mmc: slot-gpio: Remove option to explicitly free requested CD/WP GPIOs	2015-01-19 09:56:16 +01:00
tmio.h	mmc: SDHI: add SoC specific workaround via HW version	2014-01-13 12:48:24 -05:00