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
7 title: SPI Controller on OMAP and K3 SoCs
8
9 maintainers:
10 - Aswath Govindraju <a-govindraju@ti.com>
11
12 allOf:
13 - $ref: spi-controller.yaml#
14
15 properties:
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 $ref: /schemas/types.yaml#/definitions/string
48 description:
49 Must be "mcspi<n>", n being the instance number (1-based).
50 This property is applicable only on legacy platforms mainly omap2/3
51 and ti81xx and should not be used on other platforms.
52 deprecated: true
53
54 ti,pindir-d0-out-d1-in:
55 description:
56 Select the D0 pin as output and D1 as input. The default is D0
57 as input and D1 as output.
58 type: boolean
59
60 dmas:
61 description:
62 List of DMA specifiers with the controller specific format as
63 described in the generic DMA client binding. A tx and rx
64 specifier is required for each chip select.
65 minItems: 1
66 maxItems: 8
67
68 dma-names:
69 description:
70 List of DMA request names. These strings correspond 1:1 with
71 the DMA specifiers listed in dmas. The string names is to be
72 "rxN" and "txN" for RX and TX requests, respectively. Where N
73 is the chip select number.
74 minItems: 1
75 maxItems: 8
76
77 required:
78 - compatible
79 - reg
80 - interrupts
81
82 unevaluatedProperties: false
83
84 if:
85 properties:
86 compatible:
87 enum:
88 - ti,omap2-mcspi
89 - ti,omap4-mcspi
90
91 then:
92 properties:
93 ti,hwmods:
94 items:
95 - pattern: "^mcspi([1-9])$"
96
97 else:
98 properties:
99 ti,hwmods: false
100
101 examples:
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 };
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