0001 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/spi/nvidia,tegra210-quad.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Tegra Quad SPI Controller
0008
0009 maintainers:
0010 - Thierry Reding <thierry.reding@gmail.com>
0011 - Jonathan Hunter <jonathanh@nvidia.com>
0012
0013 allOf:
0014 - $ref: "spi-controller.yaml#"
0015
0016 properties:
0017 compatible:
0018 enum:
0019 - nvidia,tegra210-qspi
0020 - nvidia,tegra186-qspi
0021 - nvidia,tegra194-qspi
0022 - nvidia,tegra234-qspi
0023 - nvidia,tegra241-qspi
0024
0025 reg:
0026 maxItems: 1
0027
0028 interrupts:
0029 maxItems: 1
0030
0031 clock-names:
0032 items:
0033 - const: qspi
0034 - const: qspi_out
0035
0036 clocks:
0037 maxItems: 2
0038
0039 resets:
0040 maxItems: 1
0041
0042 dmas:
0043 maxItems: 2
0044
0045 dma-names:
0046 items:
0047 - const: rx
0048 - const: tx
0049
0050 patternProperties:
0051 "@[0-9a-f]+":
0052 type: object
0053
0054 properties:
0055 spi-rx-bus-width:
0056 enum: [1, 2, 4]
0057
0058 spi-tx-bus-width:
0059 enum: [1, 2, 4]
0060
0061 required:
0062 - compatible
0063 - reg
0064 - interrupts
0065 - clock-names
0066 - clocks
0067 - resets
0068
0069 unevaluatedProperties: false
0070
0071 examples:
0072 - |
0073 #include <dt-bindings/clock/tegra210-car.h>
0074 #include <dt-bindings/reset/tegra210-car.h>
0075 #include <dt-bindings/interrupt-controller/arm-gic.h>
0076 spi@70410000 {
0077 compatible = "nvidia,tegra210-qspi";
0078 reg = <0x70410000 0x1000>;
0079 interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>;
0080 #address-cells = <1>;
0081 #size-cells = <0>;
0082 clocks = <&tegra_car TEGRA210_CLK_QSPI>,
0083 <&tegra_car TEGRA210_CLK_QSPI_PM>;
0084 clock-names = "qspi", "qspi_out";
0085 resets = <&tegra_car 211>;
0086 dmas = <&apbdma 5>, <&apbdma 5>;
0087 dma-names = "rx", "tx";
0088
0089 flash@0 {
0090 compatible = "jedec,spi-nor";
0091 reg = <0>;
0092 spi-max-frequency = <104000000>;
0093 spi-tx-bus-width = <2>;
0094 spi-rx-bus-width = <2>;
0095 nvidia,tx-clk-tap-delay = <0>;
0096 nvidia,rx-clk-tap-delay = <0>;
0097 };
0098 };
