Modern hardware all supports a TSC_DEADLINE mode for the APIC timer,
where the same GHz-scale 64 bit TSC used for performance monitoring
becomes the free-running counter used for cpu-local timer interrupts.
Being a free running counter that does not need to be reset, it will
not lose time in an interrupt. Being 64 bit, it needs no rollover or
clamping logic in the driver when presented with a 32 bit tick count.
Being a proper comparator, it will correctly trigger interrupts for
times set "in the past" and thus needs no minimum/clamping logic. The
counter is synchronized across the system architecturally (modulo one
burp where firmware likes to change the adjustment value) so usage is
SMP-safe by default. Access to the 64 bit counter and comparator
value are single-instruction atomics even on 32 bit systems, so it
beats even the RISC-V machine timer in complexity (which was our
reigning champ for "simplest timer driver").
Really this is just ideal for Zephyr. So rather than try to add
support for it to the existing APIC driver and increase complexity,
make this a new standalone driver instead. All modern hardware has
what it needs. The sole gotcha is that it's not easily emulatable
(qemu supports it only under kvm where they can freeload on the host
TSC) so it can be exercised only on hardware platforms right now.
Signed-off-by: Andy Ross <andrew.j.ross@intel.com>
This patch add support for polling based UART
on the Renesas R-Car SCIF (Serial Communication Interface
with FIFO)
This hardware block can be found on various Renesas R-Car
SoC series.
It allows to get console on R-Car Gen3 H3ULCB board.
Signed-off-by: Aymeric Aillet <aymeric.aillet@iot.bzh>
Recently WiFi ESP32 driver (utilizing WiFi radio in ESP32 SoC) was
introduced into drivers/wifi/esp32/ and it already caused confusion as
there was existing drivers/wifi/esp/ directory for ESP-AT
driver (utilizing external WiFi chip, by communicating using AT commands
from any serial capable platform). So question has arisen whether it is
good to merge both, while they are totally different drivers.
Rename ESP-AT driver to be placed in drivers/wifi/esp_at/, so that it is
easier to figure out difference between "esp32" and "esp_at" just by
looking at driver name. Rename also DT compatible and all Kconfig
options for the same reason.
Signed-off-by: Marcin Niestroj <m.niestroj@grinn-global.com>
- Move PM related APIs to `include/pm` so that it follows API `pm_`
prefix namespace. In order to make transition easier
`include/power/power.h` is kept pointing to `include/pm/pm.h`.
- Move most of device PM related content from `include/device.h` to
`include/pm/device.h` and `include/pm/runtime.h`.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This adds dictionary based logging support. Dictionary based
logging is binary based where one big difference is that
static strings are stored as pointers instead of the whole
string. This results in reduced space requirements for
storing log messages in certain scenairos.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Due to the use of gperf to generate hash table for kobjects,
the addresses of these kobjects cannot change during the last
few phases of linking (especially between zephyr_prebuilt.elf
and zephyr.elf). Because of this, the gperf generated data
needs to be placed at the end of memory to avoid pushing symbols
around in memory. This prevents moving these generated blocks
to earlier sections, for example, pinned data section needed
for demand paging. So create placeholders for use in
intermediate linking to reserve space for these generated blocks.
Due to uncertainty on the size of these blocks, more space is
being reserved which could result in wasted space. Though, this
retains the use of hash table for faster lookup.
Signed-off-by: Daniel Leung <daniel.leung@intel.com>
Add support for the FVP Base RevC 2xAEMv8A board to be emulated using
the same FVP. For now the virtual platform is only exposing one core and
the basic set of peripherals (GICv3, ARM arch timer, PL011, etc...).
INFO - Total complete: 256/ 256 100% skipped: 933, failed: 0
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Move emul.h out of the top level include/ dir into
include/drivers/emul.h and deprecated the old location.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
1. add a seperate 2 cores SMP board configuration to run in Jailhouse
inmate Cell, root Cell Linux will use Core0 and Core1, Zephyr will
run on Core2 and Core3.
2. Refine the code of dts, move SoC common dts nodes into dtsi fiel in
dts/arm64/nxp/ directory.
3. Add myself to be code owner of directory dts/arm64/nxp/.
Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Add GPIO controller driver that can be found on Renesas
RCar gen3 soc series.
Controller can handle up to 32 GPIOs per banks.
Signed-off-by: Julien Massot <julien.massot@iot.bzh>
Compare Match Timer is a 32 bit compare match timer
that can be found on various Renesas R-Car SoC.
Signed-off-by: Julien Massot <julien.massot@iot.bzh>
Clock Pulse Generator, Module Standby Software Reset, are registers
presents in Renesas Gen3 SoC series.
MSSR is used to supply clock to the different modules, shuch as timer,
or UART, it's also possible to issue a reset the different module.
CPG registers allow to get the rate or to set some divider like for
the CAN clock.
Signed-off-by: Julien Massot <julien.massot@iot.bzh>
Add basic configuration for H3ULCB, just enough to see the
Zephyr boot banner on the ram console.
This configuration make use of the Cortex-R7 present on
r8a977951 SoC.
Signed-off-by: Julien Massot <julien.massot@iot.bzh>
Most of the Renesas RCar Gen3 based SoC contains a Cortex R7
processor.
This processor has access to the same memory mapped devices than
the Cortex-A5x cores.
- CPU operates upto 800MHz
- Can use ram area from 0x40040000 to 0x42000000
- Has 512 interrupts on GIC-400 compliant with Arm GICv2
Add support for r8a77951 as first SoC of this series which is also
known as H3 ES2.0 and is present present on different boards such as
Salvator and R-Car Starter Kit(H3ulcb).
This first SoC definition is just enough to print Hello World in a
ram console.
Signed-off-by: Julien Massot <julien.massot@iot.bzh>
Add rak4631 board from RAKWireless based on nrf52840 and SX1262.
Board Documentation is completed
Signed-off-by: Guillaume Paquet <guillaume.paquet@smile.fr>
Add essential files to create a new board. Enable arch timer, uart,
multi-threading. Set memory map for flash and sram. The new board name
is fvp_baser_aemv8r with the fvp_aemv8r_aarch64 soc.
Signed-off-by: Jaxson Han <jaxson.han@arm.com>
Armv8-R AArch64 MPU can support a maximum 16 memory regions, and the
actual region number can be retrieved from the system register(MPUIR)
during MPU initialization.
Current MPU driver only suppots EL1.
Signed-off-by: Haibo Xu <haibo.xu@arm.com>
Signed-off-by: Jaxson Han <jaxson.han@arm.com>
According to Armv8-R64 Spec, MPU related meta data(region base/limit)
is 64 bits. So we need to re-define MPU related data structure here.
Signed-off-by: Haibo Xu <haibo.xu@arm.com>
Signed-off-by: Jaxson Han <jaxson.han@arm.com>
Add essential files to create a new soc.
Introduce a new type of soc series named fvp_aemv8r.
Add a new soc named fvp_aemv8r_aarch64.
Signed-off-by: Jaxson Han <jaxson.han@arm.com>
It turns out that current known issues folder contains issues that are
no longer valid or present. I have searched for some of the regex
snippets listed but I have not been able to find any. Documentation was
the last active user of the known-issues folder, but has moved to
another solution.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Move ptp_clock.h out of the top level include/ dir into
include/drivers/ptp_clock.h and deprecated the old location.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add initial support for the Cortex-M55 Core which is an implementation
of the Armv8.1-M mainline architecture and includes support for the
M‑profile Vector Extension (MVE).
The support is based on the Cortex-M33 support that already exists in
Zephyr.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Add common SDMMC_LOG_LEVEL and SDMMC_VOLUME_NAME.
Initialize drivers at POST_KERNEL level.
Update CODEOWNERS after sdmmc drivers relocation.
Signed-off-by: Johann Fischer <johann.fischer@nordicsemi.no>
Add @evgeniy-paltsev as an ARC part owner in addition to
@abrodkin and @ruuddw, so he will be chosen as a reviewer
automatically.
Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
This patch includes initial support for FT800 display driver.
It includes basic features. It can be easily extended with more
FT800 display list and co-processor features.
Signed-off-by: Hubert Miś <hubert.mis@gmail.com>
I won't be supporting Zephyr for the foreseeable future, so remove my
association with specific subsystems.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
Introduce PSoC-6 pinctrl infraestructure and definitions. This add
files to handle devicetree entries and following modifications:
- add pinctrl bindings
- update gpio bindings with pin-cells
- add pinctrl node and move gpio nodes inside
- declare pinctrl for current uart entries
Signed-off-by: Gerson Fernando Budke <gerson.budke@atl-electronics.com>
This new subsystem can be used to supervise individual threads. It
is based on a regularly updated kernel timer, whose ISR is never
actually called in regular system operation.
An existing hardware watchdog can be used as an optional fallback if
the task watchdog itself gets stuck.
Signed-off-by: Martin Jäger <martin@libre.solar>
Add GPIO driver for QuickLogic EOS S3 SoC.
Co-authored-by: Jan Kowalewski <jkowalewski@antmicro.com>
Signed-off-by: Wojciech Tatarski <wtatarski@antmicro.com>
Signed-off-by: Jan Kowalewski <jkowalewski@antmicro.com>
I have not had time to work with USB recently, so removing myself from
MAINTAINERS and CODEOWNERS for the USB subsystem.
Signed-off-by: Andrei Emeltchenko <andrei.emeltchenko@intel.com>
In applications like logging the call site where arguments to
formatting are available may not be suitable for performing the
formatting, e.g. when the output operation can sleep. Add API that
supports capturing data that may be transient into a buffer that can
be saved, and API that then produces the output later using the
packaged arguments.
[ Documentation and commit log from Peter Bigot. ]
Signed-off-by: Nicolas Pitre <npitre@baylibre.com>
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Add Thalley (emil.gydesen@nordicsemi.no) and asbjornsabo
(asbjorn.sabo@nordicsemi.no) as additional maintainers/codeowners for
bluetooth audio.
(Also adds empty audio.h file, that will later be expanded, so that
the include/bluetooth/audio directory now listed in CODEOWNERS
actually exists.)
Signed-off-by: Asbjørn Sæbø <asbjorn.sabo@nordicsemi.no>
