In order to work on a clock speed higher than 20 MHz, IO MUX is required.
Co-authored-by: Glauber Maroto Ferreira <glauber.ferreira@espressif.com>
Signed-off-by: XiNGRZ Chan <hi@xingrz.me>
Adds optional device tree property to specify a default character
to clock out when the TX buffer pointer is NULL. If the property is
not set the existing behavior (default char of 0x00) is used.
I verified the expected behavior using an i.MX RT685 board and
logic analyzer that the def-char character is transmitted when
TX buffer pointer is NULL.
Signed-off-by: Bryce Wilkins <bryce.wilkins@gmail.com>
Move the RX (MISO) delaying capability information to Devicetree. It is
done using 2 properties:
- rx-delay-supported: enabled on SPI nodes that support delaying RX.
This property can be used by the driver to determine if this
capability is supported or not on a given instance.
- rx-delay: the actual RX delay value
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Specify the overrun character in Devicetree. Since 0xFF is the most
common value, DT property contains such default.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Devicetree is the natural place to describe hardware, so move the
maximum frequency the SPI can work with to Devicetree instead of relying
on values from HAL.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
All in tree device drivers use some form of DEVICE_DT_GET
so we no longer need to require label properties.
Signed-off-by: Kumar Gala <galak@kernel.org>
All in tree device drivers use some form of DEVICE_DT_GET
so we no longer need to require label properties.
Signed-off-by: Kumar Gala <galak@kernel.org>
All in tree device drivers on a bus use some form of DEVICE_DT_GET
so we no longer need to require label properties.
Signed-off-by: Kumar Gala <galak@kernel.org>
CONFIG_SIFIVE_SPI_0_ROM (default y) was an option to disable spi0 if
used to access SPI Flash ROM. However, its design had a problem: it
relied on instance numbers. You had to set status okay for spi0 to make
it work (incongruent with the purpose of the option itself). This patch
makes things simpler: if such SPI0 is not available, simply keep it
disabled in DT. Bindings have been updated to mention this case.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Add a stm32h7 spi compatible.
This compatible intends to match all SPI hardware blocks that
can be compatible with the one available in stm32h7 devices,
for instance, but not limited to stm32u5 and stm32mp1.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Use consistent name for SPI HW block property so applications
using a device tree overlay work transparently.
Signed-off-by: Jose Alberto Meza <jose.a.meza.arellano@intel.com>
-pin properties, e.g. tx-pin have been replaced by pinctrl. Mark them as
deprecated since old pin configuration schemes will be deprecated in
Zephyr 3.2.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
This commit aligns SPIM shim to utilize memory-region property from
nordic,nrf-uarte compatible. The memory-region is not required
property that enables user to specify placement of dma buffers
in memory region. It is done by assigning to memory-region property,
phandle to node with zephyr,memory-region and mimo-sram compatible.
When memory-region property is not specified for given
instance, buffer is placed in default RAM region with other data.
Signed-off-by: Adam Wojasinski <adam.wojasinski@nordicsemi.no>
This commit has the necessary changes to update the consumers
of pinmux driver(SPI, I2C, UART) and update the board specific
files to use the pinctrl interface.
Signed-off-by: Vaishnav Achath <vaishnav@beagleboard.org>
Enable pinctrl for flexspi driver. Note that when flexspi is being using
in XIP mode, pinctrl settings are not required and will not be applied.
Pinctrl settings are only required when the flexspi device being used is
not the one used for XIP.
Signed-off-by: Daniel DeGrasse <daniel.degrasse@nxp.com>
This add support to pinctrl at Atmel sam0 spi driver. It updates all
boards with new pinctrl groups format and drop pinmux entries.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
This update Atmel sam spi driver to use pinctrl driver and API. It
updates all boards with new pinctrl groups format.
Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>
This commit makes the transition from the pinmux driver to the pinctrl
driver. It also modifies UART, SPI and I2C drivers used in FE310-based
boards to use the new pinctrl API.
Signed-off-by: Filip Kokosinski <fkokosinski@antmicro.com>
Add support for the new pinctrl API to the SPI drivers that handle
the nRF SPI, SPIM, and SPIS peripherals. Update code of the drivers
and related devicetree bindings.
Signed-off-by: Andrzej Głąbek <andrzej.glabek@nordicsemi.no>
Better setting a default value there so DT_PROP() will return something
relevant whether the property is set or not.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Add driver for MEC172x QMSPI with local DMA(LDMA). The driver
support SPI asynchronous operation.
Signed-off-by: Jay Vasanth <jay.vasanth@microchip.com>
This adds an spi master mode driver via bitbanged gpio. Only syncronous
transfers are implemented. Clock signal timing is accomplished via busy
waits, the gpios are manipulated via the standard gpio interface; these
two factors limit the frequency at which it can operate - but here
a simple and generic implementation was chosen over performance.
The driver supports the various clock polarity and phase
configurations, and can also work with word sizes which are non
multiples of 8bits, currently up to 16 bits.
A sample program is also added demonstrating basic use of the driver
with 9bit data words.
Signed-off-by: Marc Reilly <marc@cpdesign.com.au>
Adds optional device tree properties to insert delays between spi chip
select assert/deassert and the clock edges, and also between spi
frames and transfers to the mcux flexcomm spi driver. If the properties
are not set, no additional delay is inserted.
Verified expected behavior on mimxrt685_evk and check with a scope
that the pre- and post-delay could be changed from the device tree
properties.
Signed-off-by: Bryce Wilkins <bryce.wilkins@gmail.com>
Most of the time SPI devices use TI's frame format. But some may use
Motorola's. This is already taken care of in the SPI API and now it will
be possible to select the right format from DTS. Like:
...
frame-format = <SPI_FRAME_FORMAT_MOTOROLA>;
...
This is only meant to be used for devices supporting both formats (so
the format is not hard-coded in the driver) and selected by hardware
configuration or else. Which, in such case, it will need to use
DT_INST_PROP(<instance number>, frame-format) macro call to retrieve
the property value. Others can fully ignore it.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Now that STM32 drivers are using pinctrl API, set pintrl-0 and
pintrl-names properties as required in order to report malformed
nodes description soon at build stage and avoid cryptic
DT api build error messages.
Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
Users will have to include dt-bindings/spi/spi.h in order to use the
relevant flags fol this property. For instance:
...
duplex = <SPI_HALF_DUPLEX>;
....
By default all SPI device are configured to be full duplex so the
property is optional. This property makes sense only for devices that
can be configured on either modes. Which, in such case, it will need to
use DT_INST_PROP(<instance number>, duplex) macro call to retrieve the
property value. Others can fully ignore it.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
The FIU/UMA module in the NPCX chip provides an dedicated SPI interface
to access the SPI flash. This commit adds the driver support for it.
With this commit, the application can call the flash APIs
(via spi_nor.c) to access the internal flash of NPCX EC chips.
Signed-off-by: Jun Lin <CHLin56@nuvoton.com>
Change-Id: I32bbf09f6e014b728ff8e4692e48151ae759e188
If supported by the SPI instance and soc, this property will
configure the frame-format to be compliant with the TI mode.
By default, if supported, the frame-format is Motorola mode.
Signed-off-by: Francois Ramu <francois.ramu@st.com>
This adds support for controlling the SUBGHZSPI NSS line in STM32WL
devices. This is a special dedicated SPI port only connected to the
radio device internally, chip select happens through a bit in the PWR
module. Adding a special dt-property to identify the port, it all gets
built out on non-WL devices.
Deduplicate the existing dts bindings in the process, and add the new
one for the special spi with the new property.
Signed-off-by: Fabio Baltieri <fabio.baltieri@gmail.com>
Add pinctrl-0 as being required on NXP Kinetis DTS bindings for I2C,
FTM, UART, and DSPI related devices.
Other devices like ethernet and CAN are utilized outside of just the
Kinetis family and thus we can not require pinctrl-0 property for them
at this time.
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
Reworks the NXP FlexSPI device tree bindings to configure controller and
device properties needed for an upcoming FlexSPI flash driver.
Signed-off-by: Maureen Helm <maureen.helm@nxp.com>
Add some details to help new users learn how to manage the nodes
for compatibles corresponding to IP blocks on Nordic SoCs.
The focus is on IP blocks where the pinmux is configured in
devicetree. These typically have individual properties for each pin,
like a SCK pin on a SPI peripheral, which correspond directly to a
PSEL register value. These violate the usual devicetree convention of
using a 'foo-gpios <&gpioX ...>' phandle property and work in ways
that only make sense if you understand the underlying register map, so
it's worth explaining them a bit more carefully.
Skip these two bindings, which have no drivers: nordic,nrf-i2s.yaml,
nordic,nrf-pdm.yaml.
Signed-off-by: Martí Bolívar <marti.bolivar@nordicsemi.no>
