omap-spi.yaml (2756B)
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/spi/omap-spi.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: SPI controller bindings for OMAP and K3 SoCs 8 9maintainers: 10 - Aswath Govindraju <a-govindraju@ti.com> 11 12allOf: 13 - $ref: spi-controller.yaml# 14 15properties: 16 compatible: 17 oneOf: 18 - items: 19 - enum: 20 - ti,am654-mcspi 21 - ti,am4372-mcspi 22 - const: ti,omap4-mcspi 23 - items: 24 - enum: 25 - ti,omap2-mcspi 26 - ti,omap4-mcspi 27 28 reg: 29 maxItems: 1 30 31 interrupts: 32 maxItems: 1 33 34 clocks: 35 maxItems: 1 36 37 power-domains: 38 maxItems: 1 39 40 ti,spi-num-cs: 41 $ref: /schemas/types.yaml#/definitions/uint32 42 description: Number of chipselect supported by the instance. 43 minimum: 1 44 maximum: 4 45 46 ti,hwmods: 47 $ref: /schemas/types.yaml#/definitions/string 48 description: 49 Must be "mcspi<n>", n being the instance number (1-based). 50 This property is applicable only on legacy platforms mainly omap2/3 51 and ti81xx and should not be used on other platforms. 52 deprecated: true 53 54 ti,pindir-d0-out-d1-in: 55 description: 56 Select the D0 pin as output and D1 as input. The default is D0 57 as input and D1 as output. 58 type: boolean 59 60 dmas: 61 description: 62 List of DMA specifiers with the controller specific format as 63 described in the generic DMA client binding. A tx and rx 64 specifier is required for each chip select. 65 minItems: 1 66 maxItems: 8 67 68 dma-names: 69 description: 70 List of DMA request names. These strings correspond 1:1 with 71 the DMA sepecifiers listed in dmas. The string names is to be 72 "rxN" and "txN" for RX and TX requests, respectively. Where N 73 is the chip select number. 74 minItems: 1 75 maxItems: 8 76 77required: 78 - compatible 79 - reg 80 - interrupts 81 82unevaluatedProperties: false 83 84if: 85 properties: 86 compatible: 87 enum: 88 - ti,omap2-mcspi 89 - ti,omap4-mcspi 90 91then: 92 properties: 93 ti,hwmods: 94 items: 95 - pattern: "^mcspi([1-9])$" 96 97else: 98 properties: 99 ti,hwmods: false 100 101examples: 102 - | 103 #include <dt-bindings/interrupt-controller/irq.h> 104 #include <dt-bindings/interrupt-controller/arm-gic.h> 105 #include <dt-bindings/soc/ti,sci_pm_domain.h> 106 107 spi@2100000 { 108 compatible = "ti,am654-mcspi","ti,omap4-mcspi"; 109 reg = <0x2100000 0x400>; 110 interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>; 111 clocks = <&k3_clks 137 1>; 112 power-domains = <&k3_pds 137 TI_SCI_PD_EXCLUSIVE>; 113 #address-cells = <1>; 114 #size-cells = <0>; 115 dmas = <&main_udmap 0xc500>, <&main_udmap 0x4500>; 116 dma-names = "tx0", "rx0"; 117 };