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97e4827d77cqspi_set_protocol() only set the data width, but ignored the command and address width (except for 8-8-8 DTR ops), leading to corruption of all transfers using 1-X-X or X-X-X ops. Fix by setting the other two widths as well. While we're at it, simplify the code a bit by replacing the CQSPI_INST_TYPE_* constants with ilog2(). Tested on a TI AM64x with a Macronix MX25U51245G QSPI flash with 1-4-4 read and write operations. Signed-off-by: Matthias Schiffer <matthias.schiffer@ew.tq-group.com> Link: https://lore.kernel.org/r/20220331110819.133392-1-matthias.schiffer@ew.tq-group.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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| README | ||
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.