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

Kishon Vijay Abraham I kishon at ti.com
Thu Nov 13 04:56:16 PST 2014


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 at 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




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