From: Vipin Kumar <vipin.kumar@st.com>
Date: Wed, 14 Mar 2012 06:17:17 +0000 (+0530)
Subject: mtd: nand/fsmc: Access the NAND device word by word whenever possible
X-Git-Tag: v3.4-rc1~16^2~15
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=604e75444fa82cfdcba339e3bd4da1dfd6947539;p=pandora-kernel.git

mtd: nand/fsmc: Access the NAND device word by word whenever possible

The default way of accessing nand device is using the nand width. This means
that 8bit devices are using u8 * and 16bit devices are accessed using u16 *.

This results in a non-optimal performance since the FSMC is designed to
translate the normal word accesses into device width based accesses. This patch
implements read_buf and write_buf callbacks using word by word accesses.

Signed-off-by: Vipin Kumar <vipin.kumar@st.com>
Reviewed-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
---

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