bindings/spi/snps%2Cdw-apb-ssi.yaml

1 # SPDX-License-Identifier: GPL-2.0-only
3 ---
4 $id: http://devicetree.org/schemas/spi/snps,dw-apb-ssi.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10   - Mark Brown <broonie@kernel.org>
13   - $ref: spi-controller.yaml#
14   - if:
19               - mscc,ocelot-spi
20               - mscc,jaguar2-spi
25   - if:
30               - baikal,bt1-sys-ssi
33         mux-controls:
36         - mux-controls
39         - interrupts
40   - if:
44             const: amd,pensando-elba-spi
47         - amd,pensando-elba-syscon
50         amd,pensando-elba-syscon: false
55       - description: Generic DW SPI Controller
57           - snps,dw-apb-ssi
58           - snps,dwc-ssi-1.01a
59       - description: Microsemi Ocelot/Jaguar2 SoC SPI Controller
61           - enum:
62               - mscc,ocelot-spi
63               - mscc,jaguar2-spi
64           - const: snps,dw-apb-ssi
65       - description: Microchip Sparx5 SoC SPI Controller
66         const: microchip,sparx5-spi
67       - description: Amazon Alpine SPI Controller
68         const: amazon,alpine-dw-apb-ssi
69       - description: Renesas RZ/N1 SPI Controller
71           - const: renesas,rzn1-spi
72           - const: snps,dw-apb-ssi
73       - description: Intel Keem Bay SPI Controller
74         const: intel,keembay-ssi
75       - description: Intel Mount Evans Integrated Management Complex SPI Controller
76         const: intel,mountevans-imc-ssi
77       - description: AMD Pensando Elba SoC SPI Controller
78         const: amd,pensando-elba-spi
79       - description: Baikal-T1 SPI Controller
80         const: baikal,bt1-ssi
81       - description: Baikal-T1 System Boot SPI Controller
82         const: baikal,bt1-sys-ssi
83       - description: Canaan Kendryte K210 SoS SPI Controller
84         const: canaan,k210-spi
85       - description: Renesas RZ/N1 SPI Controller
87           - enum:
88               - renesas,r9a06g032-spi # RZ/N1D
89               - renesas,r9a06g033-spi # RZ/N1S
90           - const: renesas,rzn1-spi   # RZ/N1
95       - description: DW APB SSI controller memory mapped registers
96       - description: SPI MST region map or directly mapped SPI ROM
104       - description: SPI Controller reference clock source
105       - description: APB interface clock source
107   clock-names:
110       - const: ssi_clk
111       - const: pclk
116   reset-names:
117     const: spi
119   reg-io-width:
124   num-cs:
131       - description: TX DMA Channel
132       - description: RX DMA Channel
134   dma-names:
136       - const: tx
137       - const: rx
139   rx-sample-delay-ns:
142       Default value of the rx-sample-delay-ns property.
144       for a SPI slave device.
146       SPI Rx sample delay offset, unit is nanoseconds.
152   amd,pensando-elba-syscon:
153     $ref: /schemas/types.yaml#/definitions/phandle-array
155       Block address to control SPI chip-selects. The Elba SoC system controller
156       provides an interface to override the native DWC SSI CS control.
159   "^.*@[0-9a-f]+$":
171   - compatible
172   - reg
173   - "#address-cells"
174   - "#size-cells"
175   - clocks
178   - |
179     spi@fff00000 {
180       compatible = "snps,dw-apb-ssi";
182       #address-cells = <1>;
183       #size-cells = <0>;
186       num-cs = <2>;
187       cs-gpios = <&gpio0 13 0>,
189       rx-sample-delay-ns = <3>;
191         compatible = "spi-nand";
193         rx-sample-delay-ns = <7>;
196   - |
197     spi@1f040100 {
198       compatible = "baikal,bt1-sys-ssi";
201       #address-cells = <1>;
202       #size-cells = <0>;
203       mux-controls = <&boot_mux>;
205       clock-names = "ssi_clk";