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From ed355dc59a30638b914152d52752d5e0ca06ecbd Mon Sep 17 00:00:00 2001
From: Kishore Kadiyala <kishore.kadiyala@ti.com>
Date: Wed, 17 Feb 2010 19:34:47 +0530
Subject: [PATCH 30/45] Fix for bus width which improves SD card's peformance.
This patch fixes bus width which improves peformance for SD cards.
OMAP-MMC controller's can support maximum bus width of '8'.
when bus width is mentioned as "8" in controller data,the SD
stack will check whether bus width is "4" and if not it will
set bus width to "1" and there by degrading peformance.
Signed-off-by: Kishore Kadiyala <kishore.kadiyala@ti.com>
---
drivers/mmc/host/omap_hsmmc.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/drivers/mmc/host/omap_hsmmc.c b/drivers/mmc/host/omap_hsmmc.c
index fa94580..9646a75 100644
--- a/drivers/mmc/host/omap_hsmmc.c
+++ b/drivers/mmc/host/omap_hsmmc.c
@@ -1776,7 +1776,7 @@ static int __init omap_hsmmc_probe(struct platform_device *pdev)
MMC_CAP_WAIT_WHILE_BUSY;
if (mmc_slot(host).wires >= 8)
- mmc->caps |= MMC_CAP_8_BIT_DATA;
+ mmc->caps |= (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA);
else if (mmc_slot(host).wires >= 4)
mmc->caps |= MMC_CAP_4_BIT_DATA;
--
1.6.6.1
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