Bindings/spi/atmel,quadspi.yaml

   1 # SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/spi/atmel,quadspi.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Atmel Quad Serial Peripheral Interface (QSPI)
   8
   9 maintainers:
  10   - Tudor Ambarus <tudor.ambarus@linaro.org>
  11
  12 allOf:
  13   - $ref: spi-controller.yaml#
  14
  15 properties:
  16   compatible:
  17     enum:
  18       - atmel,sama5d2-qspi
  19       - microchip,sam9x60-qspi
  20       - microchip,sama7g5-qspi
  21       - microchip,sama7g5-ospi
  22
  23   reg:
  24     items:
  25       - description: base registers
  26       - description: mapped memory
  27
  28   reg-names:
  29     items:
  30       - const: qspi_base
  31       - const: qspi_mmap
  32
  33   clocks:
  34     minItems: 1
  35     items:
  36       - description: peripheral clock
  37       - description: system clock or generic clock, if available
  38
  39   clock-names:
  40     minItems: 1
  41     items:
  42       - const: pclk
  43       - enum: [ qspick, gclk ]
  44
  45   interrupts:
  46     maxItems: 1
  47
  48   dmas:
  49     items:
  50       - description: tx DMA channel
  51       - description: rx DMA channel
  52
  53   dma-names:
  54     items:
  55       - const: tx
  56       - const: rx
  57
  58   '#address-cells':
  59     const: 1
  60
  61   '#size-cells':
  62     const: 0
  63
  64 required:
  65   - compatible
  66   - reg
  67   - reg-names
  68   - interrupts
  69   - clocks
  70   - clock-names
  71   - '#address-cells'
  72   - '#size-cells'
  73
  74 unevaluatedProperties: false
  75
  76 examples:
  77   - |
  78     #include <dt-bindings/interrupt-controller/irq.h>
  79     #include <dt-bindings/clock/at91.h>
  80     spi@f0020000 {
  81         compatible = "atmel,sama5d2-qspi";
  82         reg = <0xf0020000 0x100>, <0xd0000000 0x8000000>;
  83         reg-names = "qspi_base", "qspi_mmap";
  84         interrupts = <52 IRQ_TYPE_LEVEL_HIGH 7>;
  85         clocks = <&pmc PMC_TYPE_PERIPHERAL 52>;
  86         clock-names = "pclk";
  87         #address-cells = <1>;
  88         #size-cells = <0>;
  89         pinctrl-names = "default";
  90         pinctrl-0 = <&pinctrl_spi0_default>;
  91
  92         flash@0 {
  93             compatible = "jedec,spi-nor";
  94             spi-max-frequency = <50000000>;
  95             reg = <0>;
  96             spi-rx-bus-width = <4>;
  97             spi-tx-bus-width = <4>;
  98         };
  99     };