02ec75edaa
access-controllers is an optional property that allows a peripheral to refer to one or more domain access controller(s). Description of this property is added to all peripheral binding files of the peripheral under the STM32 firewall controller. It allows an accurate representation of the hardware, where various peripherals are connected to a firewall bus. The firewall can then check the peripheral accesses before allowing its device to probe. Signed-off-by: Gatien Chevallier <gatien.chevallier@foss.st.com> Reviewed-by: Rob Herring <robh@kernel.org> Signed-off-by: Alexandre Torgue <alexandre.torgue@foss.st.com>
87 lines
1.9 KiB
YAML
87 lines
1.9 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
|
|
%YAML 1.2
|
|
---
|
|
$id: http://devicetree.org/schemas/spi/st,stm32-spi.yaml#
|
|
$schema: http://devicetree.org/meta-schemas/core.yaml#
|
|
|
|
title: STMicroelectronics STM32 SPI Controller
|
|
|
|
description: |
|
|
The STM32 SPI controller is used to communicate with external devices using
|
|
the Serial Peripheral Interface. It supports full-duplex, half-duplex and
|
|
simplex synchronous serial communication with external devices. It supports
|
|
from 4 to 32-bit data size.
|
|
|
|
maintainers:
|
|
- Erwan Leray <erwan.leray@foss.st.com>
|
|
- Fabrice Gasnier <fabrice.gasnier@foss.st.com>
|
|
|
|
allOf:
|
|
- $ref: spi-controller.yaml#
|
|
|
|
properties:
|
|
compatible:
|
|
enum:
|
|
- st,stm32f4-spi
|
|
- st,stm32f7-spi
|
|
- st,stm32h7-spi
|
|
- st,stm32mp25-spi
|
|
|
|
reg:
|
|
maxItems: 1
|
|
|
|
clocks:
|
|
maxItems: 1
|
|
|
|
interrupts:
|
|
maxItems: 1
|
|
|
|
resets:
|
|
maxItems: 1
|
|
|
|
dmas:
|
|
description: |
|
|
DMA specifiers for tx and rx dma. DMA fifo mode must be used. See
|
|
the STM32 DMA bindings Documentation/devicetree/bindings/dma/st,stm32-dma.yaml.
|
|
items:
|
|
- description: rx DMA channel
|
|
- description: tx DMA channel
|
|
|
|
dma-names:
|
|
items:
|
|
- const: rx
|
|
- const: tx
|
|
|
|
access-controllers:
|
|
minItems: 1
|
|
maxItems: 2
|
|
|
|
required:
|
|
- compatible
|
|
- reg
|
|
- clocks
|
|
- interrupts
|
|
|
|
unevaluatedProperties: false
|
|
|
|
examples:
|
|
- |
|
|
#include <dt-bindings/interrupt-controller/arm-gic.h>
|
|
#include <dt-bindings/clock/stm32mp1-clks.h>
|
|
#include <dt-bindings/reset/stm32mp1-resets.h>
|
|
spi@4000b000 {
|
|
#address-cells = <1>;
|
|
#size-cells = <0>;
|
|
compatible = "st,stm32h7-spi";
|
|
reg = <0x4000b000 0x400>;
|
|
interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
|
|
clocks = <&rcc SPI2_K>;
|
|
resets = <&rcc SPI2_R>;
|
|
dmas = <&dmamux1 0 39 0x400 0x05>,
|
|
<&dmamux1 1 40 0x400 0x05>;
|
|
dma-names = "rx", "tx";
|
|
cs-gpios = <&gpioa 11 0>;
|
|
};
|
|
|
|
...
|