118 lines
2.7 KiB
YAML
118 lines
2.7 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/spi/omap-spi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: SPI controller bindings for OMAP and K3 SoCs
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maintainers:
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- Aswath Govindraju <a-govindraju@ti.com>
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allOf:
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- $ref: spi-controller.yaml#
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- ti,am654-mcspi
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- ti,am4372-mcspi
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- const: ti,omap4-mcspi
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- items:
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- enum:
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- ti,omap2-mcspi
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- ti,omap4-mcspi
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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clocks:
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maxItems: 1
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power-domains:
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maxItems: 1
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ti,spi-num-cs:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: Number of chipselect supported by the instance.
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minimum: 1
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maximum: 4
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ti,hwmods:
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$ref: /schemas/types.yaml#/definitions/string
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description:
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Must be "mcspi<n>", n being the instance number (1-based).
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This property is applicable only on legacy platforms mainly omap2/3
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and ti81xx and should not be used on other platforms.
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deprecated: true
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ti,pindir-d0-out-d1-in:
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description:
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Select the D0 pin as output and D1 as input. The default is D0
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as input and D1 as output.
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type: boolean
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dmas:
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description:
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List of DMA specifiers with the controller specific format as
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described in the generic DMA client binding. A tx and rx
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specifier is required for each chip select.
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minItems: 1
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maxItems: 8
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dma-names:
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description:
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List of DMA request names. These strings correspond 1:1 with
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the DMA sepecifiers listed in dmas. The string names is to be
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"rxN" and "txN" for RX and TX requests, respectively. Where N
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is the chip select number.
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minItems: 1
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maxItems: 8
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required:
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- compatible
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- reg
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- interrupts
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unevaluatedProperties: false
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if:
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properties:
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compatible:
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enum:
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- ti,omap2-mcspi
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- ti,omap4-mcspi
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then:
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properties:
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ti,hwmods:
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items:
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- pattern: "^mcspi([1-9])$"
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else:
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properties:
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ti,hwmods: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/soc/ti,sci_pm_domain.h>
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spi@2100000 {
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compatible = "ti,am654-mcspi","ti,omap4-mcspi";
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reg = <0x2100000 0x400>;
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interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&k3_clks 137 1>;
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power-domains = <&k3_pds 137 TI_SCI_PD_EXCLUSIVE>;
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#address-cells = <1>;
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#size-cells = <0>;
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dmas = <&main_udmap 0xc500>, <&main_udmap 0x4500>;
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dma-names = "tx0", "rx0";
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};
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