156 lines
3.8 KiB
YAML
156 lines
3.8 KiB
YAML
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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/spi/renesas,rspi.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Renesas (Quad) Serial Peripheral Interface (RSPI/QSPI)
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maintainers:
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- Geert Uytterhoeven <geert+renesas@glider.be>
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properties:
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compatible:
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oneOf:
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- items:
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- enum:
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- renesas,rspi-sh7757 # SH7757
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- const: renesas,rspi # Legacy SH
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- items:
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- enum:
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- renesas,rspi-r7s72100 # RZ/A1H
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- renesas,rspi-r7s9210 # RZ/A2
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- renesas,r9a07g043-rspi # RZ/G2UL
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- renesas,r9a07g044-rspi # RZ/G2{L,LC}
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- renesas,r9a07g054-rspi # RZ/V2L
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- const: renesas,rspi-rz
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- items:
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- enum:
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- renesas,qspi-r8a7742 # RZ/G1H
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- renesas,qspi-r8a7743 # RZ/G1M
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- renesas,qspi-r8a7744 # RZ/G1N
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- renesas,qspi-r8a7745 # RZ/G1E
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- renesas,qspi-r8a77470 # RZ/G1C
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- renesas,qspi-r8a7790 # R-Car H2
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- renesas,qspi-r8a7791 # R-Car M2-W
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- renesas,qspi-r8a7792 # R-Car V2H
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- renesas,qspi-r8a7793 # R-Car M2-N
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- renesas,qspi-r8a7794 # R-Car E2
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- const: renesas,qspi # R-Car Gen2 and RZ/G1
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reg:
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maxItems: 1
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interrupts:
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oneOf:
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- items:
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- description: A combined interrupt
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- items:
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- description: Error interrupt (SPEI)
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- description: Receive Interrupt (SPRI)
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- description: Transmit Interrupt (SPTI)
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interrupt-names:
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oneOf:
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- items:
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- const: mux
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- items:
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- const: error
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- const: rx
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- const: tx
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clocks:
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maxItems: 1
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power-domains:
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maxItems: 1
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resets:
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maxItems: 1
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dmas:
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minItems: 2
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maxItems: 4
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description:
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Must contain a list of pairs of references to DMA specifiers, one for
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transmission, and one for reception.
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dma-names:
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minItems: 2
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maxItems: 4
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items:
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enum:
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- tx
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- rx
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num-cs:
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description: |
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Total number of native chip selects.
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Hardware limitations related to chip selects:
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- When using GPIO chip selects, at least one native chip select must
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be left unused, as it will be driven anyway.
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minimum: 1
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maximum: 2
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default: 1
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required:
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- compatible
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- reg
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- interrupts
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- clocks
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- power-domains
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- '#address-cells'
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- '#size-cells'
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allOf:
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- $ref: spi-controller.yaml#
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- if:
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properties:
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compatible:
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contains:
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enum:
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- renesas,rspi-rz
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then:
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properties:
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interrupts:
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minItems: 3
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required:
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- interrupt-names
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- if:
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properties:
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compatible:
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contains:
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enum:
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- renesas,qspi
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- renesas,r9a07g043-rspi
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- renesas,r9a07g044-rspi
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- renesas,r9a07g054-rspi
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then:
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required:
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- resets
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/clock/r8a7791-cpg-mssr.h>
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#include <dt-bindings/interrupt-controller/arm-gic.h>
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#include <dt-bindings/power/r8a7791-sysc.h>
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qspi: spi@e6b10000 {
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compatible = "renesas,qspi-r8a7791", "renesas,qspi";
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reg = <0xe6b10000 0x2c>;
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interrupts = <GIC_SPI 184 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&cpg CPG_MOD 917>;
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dmas = <&dmac0 0x17>, <&dmac0 0x18>, <&dmac1 0x17>, <&dmac1 0x18>;
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dma-names = "tx", "rx", "tx", "rx";
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power-domains = <&sysc R8A7791_PD_ALWAYS_ON>;
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resets = <&cpg 917>;
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num-cs = <1>;
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#address-cells = <1>;
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#size-cells = <0>;
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};
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