mtd: nand/fsmc: Add DMA support

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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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Vipin Kumar 2012-03-14 11:47:18 +05:30 • committed by David Woodhouse

parent 604e75444f

commit 4774fb0a48

2 changed files with 167 additions and 5 deletions

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168

drivers/mtd/nand/fsmc_nand.c

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4

include/linux/mtd/fsmc.h

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