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Thomas Altenbach 6aeb12d558 drivers: flash: stm32_qspi: Fix flash not reset when in QPI mode
The reset commands were sent only in SPI mode, causing the device not to
be properly reset when in QPI mode. On the STM32H747I-DISCO boards, this
was causing the driver initialization to fail due to a bad SFDP magic
after flashing the external memory using STM32CubeProgrammer since the
external loader is configuring the flash memory in QPI mode.

The commands are sent in QPI mode first, then in SPI mode:
- If the flash memory was in QPI mode, the two first reset commands are
  processed and after reset, the flash memory is in SPI mode and
  correctly handles the SPI mode reset commands.
- If the flash memory was in SPI mode, for each QPI command the chip
  select signal will be released before the flash memory had the
  opportunity to receive a whole command (1 byte), so the partially
  received commands will be ignored and won't cause any harm. Then, the
  chip is reset by the commands sent in SPI mode.

Signed-off-by: Thomas Altenbach <altenbach.thomas@gmail.com>
2025-07-11 09:41:38 -05:00
.github .github: workflows: Bump Doxygen to 1.14 from 1.12 2025-07-08 13:41:02 -05:00
arch arch: arm: core: cortex_a_r: mark unused function argument 2025-07-09 00:26:17 -05:00
boards boards: stm32n6570_dk: Disable cache on PSRAM 2025-07-11 09:40:37 -05:00
cmake mcuboot: cmake: only set write_block_size when needed 2025-07-08 18:35:44 -05:00
doc doc: release-note-4.2: add new video-related API 2025-07-10 16:07:27 -05:00
drivers drivers: flash: stm32_qspi: Fix flash not reset when in QPI mode 2025-07-11 09:41:38 -05:00
dts drivers: can: sam0: fix clock configuration for SAM0 series 2025-07-10 15:53:46 -05:00
include/zephyr drivers: video: stm32_dcmipp: move video/ header directory to drivers/ 2025-07-09 09:42:43 -05:00
kernel tracing: do not mark thread as switched_out in case of no reschedule 2025-07-08 18:34:11 -05:00
lib libc: arcmwdt: grant all threads access to stdio locks 2025-07-10 19:54:27 -05:00
misc
modules hostap: Set enterprise crypto insecure 2025-07-10 16:00:26 -05:00
samples samples: tfm: tfm_psa_test: Add temporary isolation workaround 2025-07-11 09:41:26 -05:00
scripts kconfig: hardenconfig: Add support for insecure option 2025-07-10 16:00:26 -05:00
share build: kconfig: Add support for warning insecure features 2025-07-10 16:00:26 -05:00
snippets snippets: nordic-flpr: Fix nRF54LM20A memory layout 2025-07-03 11:55:42 -05:00
soc soc : realtek: ec: rts5912: fix VIN polarity issue 2025-07-09 17:18:59 -05:00
submanifests tfm-tests: Bump tests to tfm-2.2.0 2025-06-27 18:52:39 -05:00
subsys net: http: service: check for uncompressed file correctly 2025-07-10 16:01:47 -05:00
tests tests: drivers: spi_loopback: add latency tolerance for nucleo_u385rg_q 2025-07-11 09:40:47 -05:00
.checkpatch.conf
.clang-format include: zephyr: sys: simplify MIN_HEAP_FOREACH macro 2025-06-26 11:58:05 -04:00
.codechecker.yml
.codecov.yml
.editorconfig
.gitattributes
.gitignore scripts: ci: add vermin (min python version check) 2025-06-06 08:45:13 +02:00
.gitlint gitlint: Fix dependabot exception 2025-04-09 09:02:39 +02:00
.mailmap
.ruff-excludes.toml scripts: west: remove excludes for west_commands/spdx.py 2025-06-10 13:28:38 +02:00
.ruff.toml Revert "scripts: Bump Python target version for ruff" 2025-07-04 15:50:06 -05:00
.yamllint
CMakeLists.txt cmake: add option to force raw instruction mnemonics 2025-06-27 10:01:11 -05:00
CODE_OF_CONDUCT.md
CODEOWNERS
CONTRIBUTING.rst
Kconfig
Kconfig.constants
Kconfig.zephyr build: kconfig: Add support for warning insecure features 2025-07-10 16:00:26 -05:00
LICENSE
MAINTAINERS.yml MAINTAINERS: fix labels for intel platforms 2025-07-08 13:41:48 -05:00
README.rst doc: remove more occurances of Nios II 2025-05-15 20:01:05 -04:00
SDK_VERSION SDK_VERSION: Use Zephyr SDK 0.17.2 2025-06-25 12:15:09 +02:00
VERSION release: Zephyr 4.2.0-rc2 2025-07-08 07:14:21 -10:00
version.h.in version.h.in: fix cmake comment 2025-05-28 05:53:55 +02:00
west.yml manifest: Update hal_stm32 module with updated license file 2025-07-10 16:13:06 -05:00
zephyr-env.cmd
zephyr-env.sh zephyr-env.sh: Use $XDG_CONFIG_HOME/zephry/zephyrrc if present 2025-06-25 15:33:06 -10:00

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     <p align="center">
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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, 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:

Getting Started
---------------

  | 📖 `Zephyr Documentation`_
  | 🚀 `Getting Started Guide`_
  | 🙋🏽 `Tips when asking for help`_
  | 💻 `Code samples`_

Code and Development
--------------------

  | 🌐 `Source Code Repository`_
  | 📦 `Releases`_
  | 🤝 `Contribution Guide`_

Community and Support
---------------------

  | 💬 `Discord Server`_ for real-time community discussions
  | 📧 `User mailing list (users@lists.zephyrproject.org)`_
  | 📧 `Developer mailing list (devel@lists.zephyrproject.org)`_
  | 📬 `Other project mailing lists`_
  | 📚 `Project Wiki`_

Issue Tracking and Security
---------------------------

  | 🐛 `GitHub Issues`_
  | 🔒 `Security documentation`_
  | 🛡️ `Security Advisories Repository`_
  | ⚠️ Report security vulnerabilities at vulnerabilities@zephyrproject.org

Additional Resources
--------------------
  | 🌐 `Zephyr Project Website`_
  | 📺 `Zephyr Tech Talks`_

.. _Zephyr Project Website: https://www.zephyrproject.org
.. _Discord Server: https://chat.zephyrproject.org
.. _supported boards: https://docs.zephyrproject.org/latest/boards/index.html
.. _Zephyr Documentation: https://docs.zephyrproject.org
.. _Introduction to Zephyr: https://docs.zephyrproject.org/latest/introduction/index.html
.. _Getting Started Guide: https://docs.zephyrproject.org/latest/develop/getting_started/index.html
.. _Contribution Guide: https://docs.zephyrproject.org/latest/contribute/index.html
.. _Source Code Repository: https://github.com/zephyrproject-rtos/zephyr
.. _GitHub Issues: https://github.com/zephyrproject-rtos/zephyr/issues
.. _Releases: https://github.com/zephyrproject-rtos/zephyr/releases
.. _Project Wiki: https://github.com/zephyrproject-rtos/zephyr/wiki
.. _User mailing list (users@lists.zephyrproject.org): https://lists.zephyrproject.org/g/users
.. _Developer mailing list (devel@lists.zephyrproject.org): https://lists.zephyrproject.org/g/devel
.. _Other project mailing lists: https://lists.zephyrproject.org/g/main/subgroups
.. _Code samples: https://docs.zephyrproject.org/latest/samples/index.html
.. _Security documentation: https://docs.zephyrproject.org/latest/security/index.html
.. _Security Advisories Repository: https://github.com/zephyrproject-rtos/zephyr/security
.. _Tips when asking for help: https://docs.zephyrproject.org/latest/develop/getting_started/index.html#asking-for-help
.. _Zephyr Tech Talks: https://www.zephyrproject.org/tech-talks