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Scott Worley 5c00a83b99 drivers: spi: Microchip XEC QMSPI-LDMA fix spi buffer usage
Zephyr SPI driver model for full-duplex operation assumes
data will be transmitted and received during each clock period.
The QMSPI driver for the XEC family also supported dual and
quad I/O use cases which are inherently half-duplex. To
support dual/quad the driver incorrectly processed spi buffers
as all transmit buffers first then all receive buffers. This
worked if only the SPI driver was used. It did not work with
the Zephyr flash SPI NOR driver which assumes SPI drivers
follow the SPI driver model. This commit implements a QMSPI
driver that follows the Zephyr SPI driver model resulting in
a slightly smaller driver. Dual/quad SPI transactions are
supported if the experimental SPI extended mode Zephyr
configuration flag is enabled. We also remove the QMSPI full duplex
driver added previously to support the flash SPI NOR driver.
Added board to spi loop-back test and spi_flash sample.

Signed-off-by: Scott Worley <scott.worley@microchip.com>
2023-04-11 16:57:56 +02:00
.github templates: bug: add a note about project forks 2023-04-10 18:36:39 -04:00
arch riscv: pmp: Add kconfig option for granularity of PMP 2023-04-06 11:50:43 +02:00
boards drivers: spi: Microchip XEC QMSPI-LDMA fix spi buffer usage 2023-04-11 16:57:56 +02:00
cmake cmake: armfvp: enable SMSC_91C111 when it needed 2023-04-11 11:27:05 +02:00
doc doc: release: 3.4: Add note on nRF RTC system timer stop support 2023-04-11 12:02:47 +02:00
drivers drivers: spi: Microchip XEC QMSPI-LDMA fix spi buffer usage 2023-04-11 16:57:56 +02:00
dts drivers: spi: Microchip XEC QMSPI-LDMA fix spi buffer usage 2023-04-11 16:57:56 +02:00
include/zephyr include: rtio: Remove use of deprecated ceiling_fraction macro 2023-04-11 13:59:26 +02:00
kernel smp: Add BUILD_ASSERT to make sure Kconfig values are the same 2023-04-07 13:13:23 +02:00
lib sys: util: migrate all files to DIV_ROUND_UP 2023-04-11 12:00:37 +02:00
misc
modules modules: hal_nordic: nrfx: add NRF9120_XXAA support in nrfx_config 2023-04-11 14:39:59 +02:00
samples drivers: spi: Microchip XEC QMSPI-LDMA fix spi buffer usage 2023-04-11 16:57:56 +02:00
scripts twister: ignore remapped ELF file when getting ELF name 2023-04-11 14:01:39 +02:00
share cmake: sysbuild PRE_CMAKE, POST_CMAKE, PRE_DOMAINS, POST_DOMAINS hooks 2023-03-11 19:53:40 +01:00
snippets snippets: add cdc-acm-console 2023-03-26 16:12:41 +02:00
soc soc: nordic_nrf: nrf53: remove startup part of anomaly 160 workaround 2023-04-11 14:39:59 +02:00
submanifests
subsys Bluetooth: Fix clearing sent_cmd pointer when allocating event buffer 2023-04-11 16:57:37 +02:00
tests drivers: spi: Microchip XEC QMSPI-LDMA fix spi buffer usage 2023-04-11 16:57:56 +02:00
.checkpatch.conf checkpatch: Remove ext/ from excludes 2022-11-30 12:06:55 -05:00
.clang-format clang-format: Add CHECKIF to IfMacros 2023-02-27 10:47:11 -08:00
.codecov.yml yamllint: fix all yamllint comments errors 2023-01-04 01:16:45 +09:00
.editorconfig
.gitattributes
.gitignore gitignore: Ignore new bsim tests build folders 2023-03-07 08:33:38 +01:00
.gitlint
.mailmap mailmap: add two fixes for bad commits 2023-03-17 08:08:16 -04:00
.yamllint scripts: compliance: add support for YAMLLint 2023-01-04 17:29:23 +01:00
CMakeLists.txt cmake: strip paths in build output based on Kconfig option 2023-04-04 18:02:05 +02:00
CODE_OF_CONDUCT.md
CODEOWNERS CODEOWNER: Add code owner for the smsc91x driver 2023-04-11 11:27:05 +02:00
CONTRIBUTING.rst
Kconfig
Kconfig.zephyr cmake: strip paths in build output based on Kconfig option 2023-04-04 18:02:05 +02:00
LICENSE
MAINTAINERS.yml MAINTAINERS.yml: Add Drivers: RTC: entry 2023-04-04 17:03:38 +02:00
README.rst readme: Add support for light/dark modes in the logo 2022-11-18 08:58:59 +01:00
VERSION VERSION: Bump to 3.3.99 2023-02-19 20:34:26 +09:00
version.h.in
west.yml manifest: hal_nordic: update nrfx to 2.11.0 release 2023-04-11 14:39:59 +02:00
zephyr-env.cmd
zephyr-env.sh

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   src="https://bestpractices.coreinfrastructure.org/projects/74/badge"></a>
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The Zephyr Project is a scalable real-time operating system (RTOS) supporting
multiple hardware architectures, optimized for resource constrained devices,
and built with security in mind.

The Zephyr OS is based on a small-footprint kernel designed for use on
resource-constrained systems: from simple embedded environmental sensors and
LED wearables to sophisticated smart watches and IoT wireless gateways.

The Zephyr kernel supports multiple architectures, including ARM (Cortex-A,
Cortex-R, Cortex-M), Intel x86, ARC, Nios II, Tensilica Xtensa, and RISC-V,
SPARC, MIPS, and a large number of `supported boards`_.

.. below included in doc/introduction/introduction.rst


Getting Started
***************

Welcome to Zephyr! See the `Introduction to Zephyr`_ for a high-level overview,
and the documentation's `Getting Started Guide`_ to start developing.

.. start_include_here

Community Support
*****************

Community support is provided via mailing lists and Discord; see the Resources
below for details.

.. _project-resources:

Resources
*********

Here's a quick summary of resources to help you find your way around:

* **Help**: `Asking for Help Tips`_
* **Documentation**: http://docs.zephyrproject.org (`Getting Started Guide`_)
* **Source Code**: https://github.com/zephyrproject-rtos/zephyr is the main
  repository; https://elixir.bootlin.com/zephyr/latest/source contains a
  searchable index
* **Releases**: https://github.com/zephyrproject-rtos/zephyr/releases
* **Samples and example code**: see `Sample and Demo Code Examples`_
* **Mailing Lists**: users@lists.zephyrproject.org and
  devel@lists.zephyrproject.org are the main user and developer mailing lists,
  respectively. You can join the developer's list and search its archives at
  `Zephyr Development mailing list`_. The other `Zephyr mailing list
  subgroups`_ have their own archives and sign-up pages.
* **Nightly CI Build Status**: https://lists.zephyrproject.org/g/builds
  The builds@lists.zephyrproject.org mailing list archives the CI nightly build results.
* **Chat**: Real-time chat happens in Zephyr's Discord Server. Use
  this `Discord Invite`_ to register.
* **Contributing**: see the `Contribution Guide`_
* **Wiki**: `Zephyr GitHub wiki`_
* **Issues**: https://github.com/zephyrproject-rtos/zephyr/issues
* **Security Issues**: Email vulnerabilities@zephyrproject.org to report
  security issues; also see our `Security`_ documentation. Security issues are
  tracked separately at https://zephyrprojectsec.atlassian.net.
* **Zephyr Project Website**: https://zephyrproject.org

.. _Discord Invite: https://chat.zephyrproject.org
.. _supported boards: http://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: http://docs.zephyrproject.org
.. _Introduction to Zephyr: http://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: http://docs.zephyrproject.org/latest/develop/getting_started/index.html
.. _Contribution Guide: http://docs.zephyrproject.org/latest/contribute/index.html
.. _Zephyr GitHub wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _Zephyr Development mailing list: https://lists.zephyrproject.org/g/devel
.. _Zephyr mailing list subgroups: https://lists.zephyrproject.org/g/main/subgroups
.. _Sample and Demo Code Examples: http://docs.zephyrproject.org/latest/samples/index.html
.. _Security: http://docs.zephyrproject.org/latest/security/index.html
.. _Asking for Help Tips: https://docs.zephyrproject.org/latest/develop/getting_started/index.html#asking-for-help