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de23f0b757766d9fae59df97da6e8bdc5b231351
The O2 controller supports 8-bit EMMC access. JESD84-B51 section A.6.3.a defines the bus testing procedure that `mmc_select_bus_width()` implements. This is used to determine the actual bus width of the eMMC. Signed-off-by: Raul E Rangel <rrangel@chromium.org> Acked-by: Adrian Hunter <adrian.hunter@intel.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.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.
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