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931e389ded
Marvell Xfer overlay extends xSPI capabilities to support non-memory SPI operations. The Marvell overlay, combined with a generic command, allows for full-duplex SPI transactions. It also enables transactions with undetermined lengths using the cs_hold parameter and the ability to extend CS signal assertion, even if the xSPI block requests CS signal de-assertion. Marvell overlay is using part of xSPI for writing data into device, and additional hardware block to read data from the device. To do that xSPI will trigger 1 byte generic command followed by data sequence. In same time overlay block will monitor MISO pin to read data from the device. Due to that SDMA data start will be shifted by 1 byte. Signed-off-by: Witold Sadowski <wsadowski@marvell.com> Link: https://patch.msgid.link/20240724154739.582367-7-wsadowski@marvell.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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| certs | ||
| crypto | ||
| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| io_uring | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| rust | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .editorconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| .rustfmt.toml | ||
| COPYING | ||
| CREDITS | ||
| Kbuild | ||
| Kconfig | ||
| MAINTAINERS | ||
| Makefile | ||
| 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 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.