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From a442a2b9b2f9f51375f8a796ee88784d3754be00 Mon Sep 17 00:00:00 2001
From: Steve Sakoman <steve@sakoman.com>
Date: Wed, 12 Jan 2011 05:54:55 -0800
Subject: [PATCH 24/32] omap: mmc: Adjust dto to eliminate timeout errors
A number of SD card types were experiencing timeout errors. This
could also lead to data corruption in some cases.
This fix proposed by Sukumar Ghoral of TI.
---
drivers/mmc/host/omap_hsmmc.c | 1 +
1 files changed, 1 insertions(+), 0 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index d57686c..7fb03e8 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1400,6 +1400,7 @@ static void set_data_timeout(struct omap_hsmmc_host *host,
cycle_ns = 1000000000 / (clk_get_rate(host->fclk) / clkd);
timeout = timeout_ns / cycle_ns;
timeout += timeout_clks;
+ timeout *= 2;
if (timeout) {
while ((timeout & 0x80000000) == 0) {
dto += 1;
--
1.6.6.1
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