1 # SPDX-License-Identifier: GPL-2.0-only
4 $id: http://devicetree.org/schemas/spi/snps,dw-apb-ssi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: Synopsys DesignWare AMBA 2.0 Synchronous Serial Interface
10 - Mark Brown <broonie@kernel.org>
13 - $ref: "spi-controller.yaml#"
44 - description: Generic DW SPI Controller
48 - description: Microsemi Ocelot/Jaguar2 SoC SPI Controller
53 - const: snps,dw-apb-ssi
54 - description: Microchip Sparx5 SoC SPI Controller
55 const: microchip,sparx5-spi
56 - description: Amazon Alpine SPI Controller
57 const: amazon,alpine-dw-apb-ssi
58 - description: Renesas RZ/N1 SPI Controller
60 - const: renesas,rzn1-spi
61 - const: snps,dw-apb-ssi
62 - description: Intel Keem Bay SPI Controller
63 const: intel,keembay-ssi
64 - description: Baikal-T1 SPI Controller
66 - description: Baikal-T1 System Boot SPI Controller
67 const: baikal,bt1-sys-ssi
72 - description: DW APB SSI controller memory mapped registers
73 - description: SPI MST region map or directly mapped SPI ROM
81 - description: SPI Controller reference clock source
82 - description: APB interface clock source
97 $ref: /schemas/types.yaml#/definitions/uint32
98 description: I/O register width (in bytes) implemented by this device
109 - description: TX DMA Channel
110 - description: RX DMA Channel
119 description: Default value of the rx-sample-delay-ns property.
120 This value will be used if the property is not explicitly defined
121 for a SPI slave device. See below.
138 description: SPI Rx sample delay offset, unit is nanoseconds.
139 The delay from the default sample time before the actual
140 sample of the rxd input signal occurs. The "rx_sample_delay"
141 is an optional feature of the designware controller, and the
142 upper limit is also subject to controller configuration.
144 unevaluatedProperties: false
156 compatible = "snps,dw-apb-ssi";
157 reg = <0xfff00000 0x1000>;
158 #address-cells = <1>;
160 interrupts = <0 154 4>;
161 clocks = <&spi_m_clk>;
163 cs-gpios = <&gpio0 13 0>,
165 rx-sample-delay-ns = <3>;
167 compatible = "spi-nand";
169 rx-sample-delay-ns = <7>;
174 compatible = "baikal,bt1-sys-ssi";
175 reg = <0x1f040100 0x900>,
176 <0x1c000000 0x1000000>;
177 #address-cells = <1>;
179 mux-controls = <&boot_mux>;
181 clock-names = "ssi_clk";