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The NAND controller returns ECC failure during read of completely erased codeword. The NAND controller has hardware functionality to detect erased codeword in case of BCH ECC algorithm. The NAND_ERASED_CW_DETECT_CFG register controls the erased codeword/page detection controller. This register should be reset before every page read by setting and clearing bit 0 of NAND_ERASED_CW_DETECT_CFG. Reviewed-by: Archit Taneja <architt@codeaurora.org> Signed-off-by: Abhishek Sahu <absahu@codeaurora.org> Signed-off-by: Boris Brezillon <boris.brezillon@free-electrons.com>
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.