From mboxrd@z Thu Jan 1 00:00:00 1970 From: Kishon Vijay Abraham I Subject: [RFC PATCH 0/3] DRA72: MMC HS200 support Date: Thu, 13 Nov 2014 18:26:16 +0530 Message-ID: <1415883379-19654-1-git-send-email-kishon@ti.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: Sender: linux-kernel-owner@vger.kernel.org To: chris@printf.net, ulf.hansson@linaro.org, tony@atomide.com Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org, linux-omap@vger.kernel.org, afenkart@gmail.com, nsekhar@ti.com, kishon@ti.com List-Id: devicetree@vger.kernel.org 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@dra7xx-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