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Double Transfer Rate (DTR) mode transfers data twice per clock cycle. Add support for parsing DTR ops and set up the registers to allow it. Most SPI NOR flashes expect 2 byte commands. Parse the 2-byte opcode from SPI MEM and set it up in the CQSPI_REG_OP_EXT_LOWER register. Increment the delay needed before issuing indirect writes because larger delay is needed for DTR mode. With the current delay some writes end up missing. Signed-off-by: Pratyush Yadav <p.yadav@ti.com> Link: https://lore.kernel.org/r/20201222184425.7028-8-p.yadav@ti.com Signed-off-by: Mark Brown <broonie@kernel.org> |
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| certs | ||
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| Documentation | ||
| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
| LICENSES | ||
| mm | ||
| net | ||
| samples | ||
| scripts | ||
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| sound | ||
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| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
| .gitattributes | ||
| .gitignore | ||
| .mailmap | ||
| COPYING | ||
| CREDITS | ||
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| 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 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.