From 10fd0ad967c05cda16b25f862e2a45eb63d83a21 Mon Sep 17 00:00:00 2001
From: Aisheng Dong <b29396@freescale.com>
Date: Wed, 27 Aug 2014 15:26:28 +0800
Subject: [PATCH] mmc: sdhci-esdhc-imx: fix incorrect max timeout cout for
 uSDHC

The default sdhci code use the 1 << 27 as the max timeout counter to
to calculate the max_busy_timeout, however it's not correct for uSDHC
since its the max counter is 1 << 28.
Implement esdhc_get_max_timeout_cout to handle it correctly.

Reviewed-by: Shawn Guo <shawn.guo@linaro.org>
Signed-off-by: Dong Aisheng <b29396@freescale.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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