From 7ca27a6f80a4042666a28977ff8ee3aa527c6cd4 Mon Sep 17 00:00:00 2001
From: Apelete Seketeli <apelete@seketeli.net>
Date: Mon, 21 Jul 2014 06:37:44 +0200
Subject: [PATCH] mmc: jz4740: add dma infrastructure for data transfers

Until now the MMC driver for JZ4740 SoC was relying on PIO mode only
for data transfers.
This patch allows the use of DMA for data trasnfers in addition to PIO
mode by relying on DMA Engine.

DMA tranfers performance might be further improved by taking advantage
of the asynchronous request capability of the MMC framework.

Signed-off-by: Apelete Seketeli <apelete@seketeli.net>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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