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[ Upstream commit 57c0902f8bec51add5a1eb908d8b876592725d81 ] In certain DW MMC implementations (such as in some Exynos7870 controllers), 64-bit read/write is not allowed from a 64-bit FIFO. Add a quirk which facilitates accessing the 64-bit FIFO registers in two 32-bit halves. Signed-off-by: Kaustabh Chakraborty <kauschluss@disroot.org> Link: https://lore.kernel.org/r/20250219-exynos7870-mmc-v2-2-b4255a3e39ed@disroot.org Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org> Signed-off-by: Sasha Levin <sashal@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.