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Message-ID: <20101209122403.GA13236@intel.com>
Date: Thu, 9 Dec 2010 20:24:03 +0800
From: Chuanxiao Dong <chuanxiao.dong@...el.com>
To: linux-mmc@...r.kernel.org
Cc: linux-kernel@...r.kernel.org, akpm@...ux-foundation.org,
cjb@...top.org, kmpark@...radead.org, leonard.mai@...el.com
Subject: [PATCH v5 0/4]implement eMMC4.4 standard HW reset feature
Hi,
This is the version 5 of HW reset feature implementation. HW reset can
reset eMMC card when card occurs a read/write/erase timeout error. It is
useful when eMMC card cannot correspond any command after occurs a timeout
error.
change-log:
patch1: use value 5 instead to judge whether eMMC card complies eMMC4.41
standard.
patch4: handle erase timeout error only when there was an error occurs
after erase.
patch1: enable HW reset capability if card support.
patch2: add two new callback to implement HW reset in mmc core layer. In
this patch, routine mmc_handle_timeout_error was added.
patch3: implement hardware_reset callback for sdhci host. A new callback
reset_emmc was defined which will be each sdhci host controller to
implement separately.
patch4: did a HW reset after each read/write/erase command if need.
Thanks
Chuanxiao
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