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6c30eee359SPI index mode has hardware limitation of reading only 64 bytes per transaction due to fixed number of FIFO registers. This constraint leads to performance issues when reading data from NAND/NOR flash devices, as the controller must issue multiple requests to read 64-byte chunks, even if the slave can send up to 2 or 4 KB in single transaction. The AMD HID2 SPI controller supports DMA mode, which allows reading up to 4 KB of data in single transaction. This patch introduces changes to implement HID2 DMA read support for the HID2 SPI controller. Co-developed-by: Krishnamoorthi M <krishnamoorthi.m@amd.com> Signed-off-by: Krishnamoorthi M <krishnamoorthi.m@amd.com> Co-developed-by: Akshata MukundShetty <akshata.mukundshetty@amd.com> Signed-off-by: Akshata MukundShetty <akshata.mukundshetty@amd.com> Signed-off-by: Raju Rangoju <Raju.Rangoju@amd.com> Link: https://patch.msgid.link/20240925133644.2922359-9-Raju.Rangoju@amd.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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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.