This commit adds virtio section in documentation, describing
virtio-related concepts
Signed-off-by: Jakub Michalski <jmichalski@antmicro.com>
Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>
Update PACBTI support for architecture variants in the features table
and add a new section introducing PACBTI support/limitations.
Signed-off-by: Sudan Landge <sudan.landge@arm.com>
Add Cortex-M85 under the Arm v8.1-M architecture variant column.
Cortex-M85 shares feature support with Cortex-M55, including Privileged
Execute Never (PXN), and additionally introduces Pointer Authentication
and Branch Target Identification (PACBTI) extensions.
Signed-off-by: Sudan Landge <sudan.landge@arm.com>
Shield authors can now indicate an optional list of hardware features
that the shield supports, in the form of the same kind of "binding type"
already used for boards.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
While legacy shields are still supported, this introduces a shield.yml
file similar to board.yml that allows to more explicitly declare a
shield and to set some useful metadata such as vendor and full name.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
While legacy shields are still supported, this introduces a shield.yml
file similar to board.yml that allows to more explicitly declare a
shield and to set some useful metadata such as vendor and full name.
Signed-off-by: Benjamin Cabé <benjamin@zephyrproject.org>
Add section describing how to write RTC device drivers. This should
help ensure consistent RTC behavior across system reboots.
Signed-off-by: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>
Move down the "History of RTCs in Zephyr" which is least relevant,
especially now that the RTC API is well established.
Signed-off-by: Bjarki Arge Andreasen <bjarki.andreasen@nordicsemi.no>
Fixes an issue in which "SDHC" had been incorrectly expanded to
"Secure Digital High Capacity" instead of "SD Host Controller".
Since this page is listed under "Peripherals" and since the
SD Host Controller API is not supposed to be used by applications,
the more generic and recognizable title "SD card interface" is used,
and users are pointed to pages relevant to them (disk access API
and SD card subsystem).
Signed-off-by: Egill Sigurdur <egill@egill.xyz>
The i3c group address support is rather very incomplete here. Remove
references to it. This could all easily come back when/if group support
comes in.
Signed-off-by: Ryan McClelland <ryanmcclelland@meta.com>
What is the change?
This commit adds support for Armv8.1-M MPU architecture's PXN attribute.
This includes support for configuring MPU regions with PXN via
custom mpu_config, devicetree and static mpu_config.
The existing MPU region attribute macros are updated to retain existing
behaviour with this change with an addition of REGION_RAM_ATTR_PXN to be
used if one needs to configure a RAM region with PXN MPU attribute.
Why do we need this change?
Armv8.1-M architecture introduced a new MPU region attribute called
Privilege eXecute Never (PXN).
If an MPU region is configured with the PXN attribute set and if the,
processor attempts to execute code in this region while at
privileged level, a Memory Management Fault exception is triggered.
This ensures that specific tasks are executed only in unprivileged mode
and helps in preventing secure privilege escalation attacks.
Signed-off-by: Sudan Landge <sudan.landge@arm.com>
Nordic has a new tool, nRF Util (`nrfutil`) which is replacing the
previous set of command-line tools (particularly `nrfjprog`) that Zephyr
had been using by default in many of the boards to flash the firmware
onto the device.
Since nRF Util is already mature and is going to be replacing the existing
tools, including `nrfjprog`, it is now a good time to change the default
flash tool to reflect this fact.
Note that `nrfjprog` support is not being removed at all, but this may
be a breaking change for users that do not have nRF Util installed. For
this reason we also add a note in the migration guide.
More info:
https://devzone.nordicsemi.com/nordic/nordic-blog/b/blog/posts/nrf-util-unified-command-line-utility
Installation:
https://www.nordicsemi.com/Products/Development-tools/nrf-util
Documentation:
https://docs.nordicsemi.com/bundle/nrfutil/page/README.html
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
not sure "micro controller" is a typo.
Happy to update it if needed,
or feel free to close this. Thanks for your work!
Signed-off-by: Shan Pen <bricle031@gmail.com>
The BLE acronym is not an official description of Bluetooth
LE, and the Bluetooth SIG only ever refers to it as Bluetooth
Low Energy or Bluetooth LE, so Zephyr should as well.
This commit does not change any board or vendor specific
documentation, and the term BLE may still be used in those.
It will be up to the vendors to update it if they want,
since many of them are using the term BLE in their
products.
Signed-off-by: Emil Gydesen <emil.gydesen@nordicsemi.no>
This commit updates the SMP section documentation so that it reflects the
current status of SMP support in Zephyr for RISC-V, including pointing to
hardware-based platforms that as of date support SMP.
Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>
Migrates the peripherals documentation to the new step interval based APi
instead of the velocity one.
Signed-off-by: Fabian Blatz <fabianblatz@gmail.com>
Clarify how to configure serial output for the console for the two most
common cases. Follow up on commit 0cae816b27
("boards: add common configuration for CDC ACM UART")
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
Expands the caching documentation to include a high-level overview
of caching strategies and the features available in Zephyr.
Signed-off-by: Dane Wagner <dane.wagner@gmail.com>
Update the migration-guide to inform the users that now
CONFIG_ENTROPY_GENERATOR is automatically enabled as soon as
devicetree property "zephyr,entropy" is set.
Update also the "General recommendations" section of the Board Porting
Guide on the same topic.
Signed-off-by: Valerio Setti <vsetti@baylibre.com>
Cong Nguyen Huu
Gaetan Perrot
Benjamin Cabé
Zhang Xingtao
Jilay Pandya
Tahsin Mutlugun
Philipp Steiner
Jamie McCrae
Mathieu Choplain
Jakub Michalski
Sudan Landge
Paul Schaetzle
Bjarki Arge Andreasen
Anas Nashif
Egill Sigurdur
Qiang Zhao
Peter Mitsis
Ryan McClelland
Fabio Baltieri
Carles Cufi
Shan Pen
Emil Gydesen
Filip Kokosinski
Yangbo Lu
Fabian Blatz
Johann Fischer
Valerio Setti
Dane Wagner