Documentation/devicetree/bindings/spi/aspeed,ast2600-fmc.yaml

   1 # SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
   2 %YAML 1.2
   3 ---
   4 $id: http://devicetree.org/schemas/spi/aspeed,ast2600-fmc.yaml#
   5 $schema: http://devicetree.org/meta-schemas/core.yaml#
   6
   7 title: Aspeed SMC controllers
   8
   9 maintainers:
  10   - Chin-Ting Kuo <chin-ting_kuo@aspeedtech.com>
  11   - Cédric Le Goater <clg@kaod.org>
  12
  13 description: |
  14   This binding describes the Aspeed Static Memory Controllers (FMC and
  15   SPI) of the AST2400, AST2500 and AST2600 SOCs.
  16
  17 allOf:
  18   - $ref: spi-controller.yaml#
  19
  20 properties:
  21   compatible:
  22     enum:
  23       - aspeed,ast2600-fmc
  24       - aspeed,ast2600-spi
  25       - aspeed,ast2500-fmc
  26       - aspeed,ast2500-spi
  27       - aspeed,ast2400-fmc
  28       - aspeed,ast2400-spi
  29
  30   reg:
  31     items:
  32       - description: registers
  33       - description: memory mapping
  34
  35   clocks:
  36     maxItems: 1
  37
  38   interrupts:
  39     maxItems: 1
  40
  41 required:
  42   - compatible
  43   - reg
  44   - clocks
  45
  46 unevaluatedProperties: false
  47
  48 examples:
  49   - |
  50     #include <dt-bindings/interrupt-controller/arm-gic.h>
  51     #include <dt-bindings/interrupt-controller/aspeed-scu-ic.h>
  52     #include <dt-bindings/clock/ast2600-clock.h>
  53
  54     spi@1e620000 {
  55         reg = <0x1e620000 0xc4>, <0x20000000 0x10000000>;
  56         #address-cells = <1>;
  57         #size-cells = <0>;
  58         compatible = "aspeed,ast2600-fmc";
  59         clocks = <&syscon ASPEED_CLK_AHB>;
  60         interrupts = <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>;
  61
  62         flash@0 {
  63             reg = < 0 >;
  64             compatible = "jedec,spi-nor";
  65             spi-max-frequency = <50000000>;
  66             spi-rx-bus-width = <2>;
  67         };
  68
  69         flash@1 {
  70             reg = < 1 >;
  71             compatible = "jedec,spi-nor";
  72             spi-max-frequency = <50000000>;
  73             spi-rx-bus-width = <2>;
  74         };
  75
  76         flash@2 {
  77             reg = < 2 >;
  78             compatible = "jedec,spi-nor";
  79             spi-max-frequency = <50000000>;
  80             spi-rx-bus-width = <2>;
  81         };
  82     };