u-boot.git/doc/device-tree-bindings/spi, branch master

spi: soft_spi: Parse cs-gpios only if num-chipselects is not <0>

2024-08-15T17:28:47+00:00

Some boards don't have chipselect lines for leds so cs-gpios is not
specified in the dts leading to probing error. Fix it by making
behavior similar to the one in Linux, parse num-chipselects and
if it is zero, ignore cs-gpios.

Signed-off-by: Michael Polyntsov 
Signed-off-by: Mikhail Kshevetskiy

doc: bindings: soft-spi: Remove the usage of deprecated properties

2023-07-13T08:29:58+00:00

According to Documentation/devicetree/bindings/spi/spi-gpio.yaml
from Linux, the recommended spio-gpio properties are:

sck-gpios, miso-gpios and mosi-gpios.

gpio-sck, gpio-mosi and gpio-miso are considered deprecated.

Update the bindings to suggest the recommeded properties.

Signed-off-by: Fabio Estevam 
Reviewed-by: Jagan Teki

dt-bindings: spi: Add bcm63xx-hsspi controller support

2023-07-13T08:29:57+00:00

Bring the device tree binding document from Linux to u-boot

Port from linux patches:
Link: https://lore.kernel.org/r/20230207065826.285013-2-william.zhang@broadcom.com
Link: https://lore.kernel.org/r/20230207065826.285013-3-william.zhang@broadcom.com
Signed-off-by: William Zhang 
Reviewed-by: Jagan Teki

dt-bindings: spi: Add hpe gxp spi

2022-06-23T01:30:05+00:00

Add support for the HPE GXP SPI Controller.

Signed-off-by: Nick Hawkins

k210: use the board vendor name rather than the marketing name

2022-03-15T09:43:11+00:00

"kendryte" is the marketing name for the K210 RISC-V SoC produced by
Canaan Inc. Rather than "kendryte,k210", use the usual "canaan,k210"
vendor,SoC compatibility string format in the device tree files and
use the SoC name for file names.
With these changes, the device tree files are more in sync with the
Linux kernel DTS and drivers, making uboot device tree usable by the
kernel.

Signed-off-by: Damien Le Moal 
Signed-off-by: Niklas Cassel 
Reviewed-by: Leo Yu-Chi Liang

WS cleanup: remove SPACE(s) followed by TAB

2021-09-30T13:08:16+00:00

Signed-off-by: Wolfgang Denk

doc: stm32mp1: add page for device tree bindings

2021-08-14T18:54:41+00:00

With device tree binding migration to yaml it is difficult to synchronize
the binding from Linux kernel to U-Boot.

Instead of maintaining the same dt bindings, this patch adds in the U-Boot
documentation the path to the device tree bindings in Linux kernel for
STMicroelectronics devices, when they are used without modification.

Signed-off-by: Patrick Delaunay 
Signed-off-by: Patrice Chotard 

Add links for referenced text files.
Signed-off-by: Heinrich Schuchardt

spi: dw: Document devicetree binding

2020-12-18T10:46:37+00:00

This documentation has been taken from Linux commit 3d7db0f11c7a ("spi: dw:
Refactor mid_spi_dma_setup() to separate DMA and IRQ config"), immediately
before the file was deleted and replaced with a yaml version. Additional
compatible strings from newer versions have been added, as well as a few
U-Boot-specific ones.

Signed-off-by: Sean Anderson 
Reviewed-by: Jagan Teki

spi: Add Qualcomm QUP SPI controller driver

2020-10-22T13:54:54+00:00

This patch adds support for the Qualcomm QUP SPI controller that is commonly found in most of Qualcomm SoC-s.

Driver currently supports v1.1.1, v2.1.1 and v2.2.1 HW.
FIFO and Block modes are supported, no support for DMA mode is planned.

Signed-off-by: Robert Marko 
Signed-off-by: Luka Kovacic 
Cc: Luka Perkov

fsl_dspi: Introduce DT bindings for CS-SCK and SCK-CS delays

2020-07-27T08:46:26+00:00

Communication with some SPI slaves just won't cut it if these delays
(before the beginning, and after the end of a transfer) are not added to
the Chip Select signal.

These are a straight copy from Linux:
Documentation/devicetree/bindings/spi/spi-fsl-dspi.txt
drivers/spi/spi-fsl-dspi.c

Signed-off-by: Vladimir Oltean 
[Rebased]
Signed-off-by: Priyanka Jain