tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/spi/nvidia,tegra210-quad.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Tegra Quad SPI Controller
8
9maintainers:
10 - Thierry Reding <thierry.reding@gmail.com>
11 - Jonathan Hunter <jonathanh@nvidia.com>
12
13properties:
14 compatible:
15 enum:
16 - nvidia,tegra210-qspi
17 - nvidia,tegra186-qspi
18 - nvidia,tegra194-qspi
19 - nvidia,tegra234-qspi
20 - nvidia,tegra241-qspi
21
22 reg:
23 maxItems: 1
24
25 interrupts:
26 maxItems: 1
27
28 clock-names:
29 items:
30 - const: qspi
31 - const: qspi_out
32
33 clocks:
34 maxItems: 2
35
36 resets:
37 maxItems: 1
38
39 dmas:
40 maxItems: 2
41
42 dma-names:
43 items:
44 - const: rx
45 - const: tx
46
47 iommus:
48 maxItems: 1
49
50patternProperties:
51 "@[0-9a-f]+$":
52 type: object
53 additionalProperties: true
54
55 properties:
56 spi-rx-bus-width:
57 enum: [1, 2, 4]
58
59 spi-tx-bus-width:
60 enum: [1, 2, 4]
61
62required:
63 - compatible
64 - reg
65 - interrupts
66 - clock-names
67 - clocks
68 - resets
69
70unevaluatedProperties: false
71
72allOf:
73 - $ref: spi-controller.yaml#
74 - if:
75 properties:
76 compatible:
77 not:
78 contains:
79 const: nvidia,tegra234-qspi
80 then:
81 properties:
82 iommus: false
83
84examples:
85 - |
86 #include <dt-bindings/clock/tegra210-car.h>
87 #include <dt-bindings/reset/tegra210-car.h>
88 #include <dt-bindings/interrupt-controller/arm-gic.h>
89 spi@70410000 {
90 compatible = "nvidia,tegra210-qspi";
91 reg = <0x70410000 0x1000>;
92 interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
93 #address-cells = <1>;
94 #size-cells = <0>;
95 clocks = <&tegra_car TEGRA210_CLK_QSPI>,
96 <&tegra_car TEGRA210_CLK_QSPI_PM>;
97 clock-names = "qspi", "qspi_out";
98 resets = <&tegra_car 211>;
99 dmas = <&apbdma 5>, <&apbdma 5>;
100 dma-names = "rx", "tx";
101
102 flash@0 {
103 compatible = "jedec,spi-nor";
104 reg = <0>;
105 spi-max-frequency = <104000000>;
106 spi-tx-bus-width = <2>;
107 spi-rx-bus-width = <2>;
108 nvidia,tx-clk-tap-delay = <0>;
109 nvidia,rx-clk-tap-delay = <0>;
110 };
111 };