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9e510e6770
Extend the driver to support the AST2700 SPI controller. Compared to AST2600, AST2700 has the following characteristics: - A 64-bit memory address space. - A 64KB address decoding unit. - Segment registers now use (start <= range < end) semantics, which differs slightly from (start <= range <= end) in AST2600. - Known issues related to address decoding range registers have been resolved, and the decoding range is now 1GB, which is sufficient. Therefore, the adjust_window callback is no longer required on AST2700 for range adjustment and bug fixes. - The SPI clock divider method and timing calibration logic remain unchanged from AST2600. Signed-off-by: Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com> Link: https://patch.msgid.link/20251114101042.1520997-5-chin-ting_kuo@aspeedtech.com Signed-off-by: Mark Brown <broonie@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 reStructuredText 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.