Messages in this thread | | | Date | Thu, 9 Dec 2010 20:24:03 +0800 | From | Chuanxiao Dong <> | Subject | [PATCH v5 0/4]implement eMMC4.4 standard HW reset feature |
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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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