linux-kernel - [RFC PATCH 0/3] DRA72: MMC HS200 support

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Message-ID: <1415883379-19654-1-git-send-email-kishon@ti.com>
Date:	Thu, 13 Nov 2014 18:26:16 +0530
From:	Kishon Vijay Abraham I <kishon@...com>
To:	<chris@...ntf.net>, <ulf.hansson@...aro.org>, <tony@...mide.com>
CC:	<devicetree@...r.kernel.org>,
	<linux-arm-kernel@...ts.infradead.org>,
	<linux-kernel@...r.kernel.org>, <linux-mmc@...r.kernel.org>,
	<linux-omap@...r.kernel.org>, <afenkart@...il.com>,
	<nsekhar@...com>, <kishon@...com>
Subject: [RFC PATCH 0/3] DRA72: MMC HS200 support

Added HS200 to improve EMMC throughput for dra72.

With HS200
==============
Read throughput
./dd if=/dev/mmcblk0 of=/dev/null bs=1M count=100 oflag=sync
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 1.46028 s, 71.8 MB/s

Write throughput
root@...7xx-evm:/# ./dd if=/dev/zero of=/dev/mmcblk0 bs=1M count=100 oflag=sync
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 9.34884 s, 11.2 MB/s


WithOUT HS200
==============
Read throughput
./dd if=/dev/mmcblk0 of=/dev/null bs=1M count=100 oflag=sync
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 2.6423 s, 39.7 MB/s

Write throughput
./dd if=/dev/zero of=/dev/mmcblk0 bs=1M count=100 oflag=sync
100+0 records in
100+0 records out
104857600 bytes (105 MB) copied, 9.3556 s, 11.2 MB/s

Balaji T K (1):
  mmc: omap_hsmmc: add tuning support

Kishon Vijay Abraham I (1):
  ARM: dts: dra72-evm: Set the max-frequency to 192MHz

Viswanath Puttagunta (1):
  mmc: omap_hsmmc: set host capabilities by reading MMCHS_CAPA2
    register

 arch/arm/boot/dts/dra72-evm.dts |    1 +
 drivers/mmc/host/omap_hsmmc.c   |  342 ++++++++++++++++++++++++++++++++++++++-
 2 files changed, 341 insertions(+), 2 deletions(-)

-- 
1.7.9.5

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