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6783971e88
For original setting, the start point is 20, after the SION setting, ERR052021 can be workaround, but start point from 20 is too large, especially for the LD 133MHz case. Set the tuning start point as 1, tuning step as 2, so that, for the 40 times tuning logic, it can cover 1~81, its large and safe enough for all different devices like eMMC/SD/SDIO. Signed-off-by: Haibo Chen <haibo.chen@nxp.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
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.