1# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) 2 3%YAML 1.2 4--- 5$id: "http://devicetree.org/schemas/spi/qcom,spi-qcom-qspi.yaml#" 6$schema: "http://devicetree.org/meta-schemas/core.yaml#" 7 8title: Qualcomm Quad Serial Peripheral Interface (QSPI) 9 10maintainers: 11 - Mukesh Savaliya <msavaliy@codeaurora.org> 12 - Akash Asthana <akashast@codeaurora.org> 13 14description: The QSPI controller allows SPI protocol communication in single, 15 dual, or quad wire transmission modes for read/write access to slaves such 16 as NOR flash. 17 18allOf: 19 - $ref: /spi/spi-controller.yaml# 20 21properties: 22 compatible: 23 items: 24 - const: qcom,sdm845-qspi 25 - const: qcom,qspi-v1 26 27 reg: 28 maxItems: 1 29 30 interrupts: 31 maxItems: 1 32 33 clock-names: 34 items: 35 - const: iface 36 - const: core 37 38 clocks: 39 items: 40 - description: AHB clock 41 - description: QSPI core clock 42 43 interconnects: 44 minItems: 1 45 maxItems: 2 46 47 interconnect-names: 48 minItems: 1 49 items: 50 - const: qspi-config 51 - const: qspi-memory 52 53required: 54 - compatible 55 - reg 56 - interrupts 57 - clock-names 58 - clocks 59 60unevaluatedProperties: false 61 62examples: 63 - | 64 #include <dt-bindings/clock/qcom,gcc-sdm845.h> 65 #include <dt-bindings/interrupt-controller/arm-gic.h> 66 67 soc: soc { 68 #address-cells = <2>; 69 #size-cells = <2>; 70 71 qspi: spi@88df000 { 72 compatible = "qcom,sdm845-qspi", "qcom,qspi-v1"; 73 reg = <0 0x88df000 0 0x600>; 74 #address-cells = <1>; 75 #size-cells = <0>; 76 interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>; 77 clock-names = "iface", "core"; 78 clocks = <&gcc GCC_QSPI_CNOC_PERIPH_AHB_CLK>, 79 <&gcc GCC_QSPI_CORE_CLK>; 80 81 flash@0 { 82 compatible = "jedec,spi-nor"; 83 reg = <0>; 84 spi-max-frequency = <25000000>; 85 spi-tx-bus-width = <2>; 86 spi-rx-bus-width = <2>; 87 }; 88 89 }; 90 }; 91... 92