| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause) |
| 2 | %YAML 1.2 |
| 3 | --- |
| 4 | $id: http://devicetree.org/schemas/spi/qcom,spi-qup.yaml# |
| 5 | $schema: http://devicetree.org/meta-schemas/core.yaml# |
| 6 | |
| 7 | title: Qualcomm Universal Peripheral (QUP) Serial Peripheral Interface (SPI) |
| 8 | |
| 9 | maintainers: |
| 10 | - Andy Gross <agross@kernel.org> |
| 11 | - Bjorn Andersson <bjorn.andersson@linaro.org> |
| 12 | - Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> |
| 13 | |
| 14 | description: |
| 15 | The QUP core is an AHB slave that provides a common data path (an output FIFO |
| 16 | and an input FIFO) for serial peripheral interface (SPI) mini-core. |
| 17 | |
| 18 | SPI in master mode supports up to 50MHz, up to four chip selects, |
| 19 | programmable data path from 4 bits to 32 bits and numerous protocol variants. |
| 20 | |
| 21 | allOf: |
| 22 | - $ref: /schemas/spi/spi-controller.yaml# |
| 23 | |
| 24 | properties: |
| 25 | compatible: |
| 26 | enum: |
| 27 | - qcom,spi-qup-v1.1.1 # for 8660, 8960 and 8064 |
| 28 | - qcom,spi-qup-v2.1.1 # for 8974 and later |
| 29 | - qcom,spi-qup-v2.2.1 # for 8974 v2 and later |
| 30 | |
| 31 | clocks: |
| 32 | maxItems: 2 |
| 33 | |
| 34 | clock-names: |
| 35 | items: |
| 36 | - const: core |
| 37 | - const: iface |
| 38 | |
| 39 | dmas: |
| 40 | maxItems: 2 |
| 41 | |
| 42 | dma-names: |
| 43 | items: |
| 44 | - const: tx |
| 45 | - const: rx |
| 46 | |
| 47 | interconnects: |
| 48 | maxItems: 1 |
| 49 | |
| 50 | interrupts: |
| 51 | maxItems: 1 |
| 52 | |
| 53 | operating-points-v2: true |
| 54 | |
| 55 | power-domains: |
| 56 | maxItems: 1 |
| 57 | |
| 58 | reg: |
| 59 | maxItems: 1 |
| 60 | |
| 61 | required: |
| 62 | - compatible |
| 63 | - clocks |
| 64 | - clock-names |
| 65 | - interrupts |
| 66 | - reg |
| 67 | |
| 68 | unevaluatedProperties: false |
| 69 | |
| 70 | examples: |
| 71 | - | |
| 72 | #include <dt-bindings/clock/qcom,gcc-msm8996.h> |
| 73 | #include <dt-bindings/interconnect/qcom,msm8996.h> |
| 74 | #include <dt-bindings/interrupt-controller/arm-gic.h> |
| 75 | #include <dt-bindings/power/qcom-rpmpd.h> |
| 76 | |
| 77 | spi@7575000 { |
| 78 | compatible = "qcom,spi-qup-v2.2.1"; |
| 79 | reg = <0x07575000 0x600>; |
| 80 | interrupts = <GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH>; |
| 81 | clocks = <&gcc GCC_BLSP1_QUP1_SPI_APPS_CLK>, |
| 82 | <&gcc GCC_BLSP1_AHB_CLK>; |
| 83 | clock-names = "core", "iface"; |
| 84 | pinctrl-names = "default", "sleep"; |
| 85 | pinctrl-0 = <&blsp1_spi1_default>; |
| 86 | pinctrl-1 = <&blsp1_spi1_sleep>; |
| 87 | dmas = <&blsp1_dma 12>, <&blsp1_dma 13>; |
| 88 | dma-names = "tx", "rx"; |
| 89 | power-domains = <&rpmpd MSM8996_VDDCX>; |
| 90 | operating-points-v2 = <&spi_opp_table>; |
| 91 | interconnects = <&pnoc MASTER_BLSP_1 &bimc SLAVE_EBI_CH0>; |
| 92 | #address-cells = <1>; |
| 93 | #size-cells = <0>; |
| 94 | }; |