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![]() Current MMC driver doesn't handle generic error (bit19 of device status) in write sequence. As a result, write data gets lost when generic error occurs. For example, a generic error when updating a filesystem management information causes a loss of write data and corrupts the filesystem. In the worst case, the system will never boot. This patch includes the following functionality: 1. To enable error checking for the response of CMD12 and CMD13 in write command sequence 2. To retry write sequence when a generic error occurs Messages are added for v2 to show what occurs. Signed-off-by: KOBAYASHI Yoshitake <yoshitake.kobayashi@toshiba.co.jp> Signed-off-by: Chris Ball <cjb@laptop.org> |
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