From: Vipin Kumar <vipin.kumar@st.com>
Date: Wed, 14 Mar 2012 06:17:18 +0000 (+0530)
Subject: mtd: nand/fsmc: Add DMA support
X-Git-Tag: v3.4-rc1~16^2~14
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=4774fb0a48aacfec206e6d54ecf58706f6a5320a;p=pandora-kernel.git

mtd: nand/fsmc: Add DMA support

The fsmc_nand driver uses cpu to read/write onto the device. This is inefficient
because of two reasons
- the cpu gets locked on AHB bus while reading from NAND
- the cpu is unnecessarily used when dma can do the job

This patch adds the support for accessing the device through DMA

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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