bindings/memory-controllers/ingenic%2Cnemc.yaml

0001 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
0002 %YAML 1.2
0003 ---
0004 $id: http://devicetree.org/schemas/memory-controllers/ingenic,nemc.yaml#
0005 $schema: http://devicetree.org/meta-schemas/core.yaml#
0006
0007 title: Ingenic SoCs NAND / External Memory Controller (NEMC) devicetree bindings
0008
0009 maintainers:
0010   - Paul Cercueil <paul@crapouillou.net>
0011
0012 properties:
0013   $nodename:
0014     pattern: "^memory-controller@[0-9a-f]+$"
0015
0016   compatible:
0017     oneOf:
0018       - enum:
0019           - ingenic,jz4740-nemc
0020           - ingenic,jz4780-nemc
0021       - items:
0022           - const: ingenic,jz4725b-nemc
0023           - const: ingenic,jz4740-nemc
0024
0025   "#address-cells":
0026     const: 2
0027
0028   "#size-cells":
0029     const: 1
0030
0031   ranges: true
0032
0033   reg:
0034     maxItems: 1
0035
0036   clocks:
0037     maxItems: 1
0038
0039 patternProperties:
0040   ".*@[0-9]+$":
0041     type: object
0042
0043 required:
0044   - compatible
0045   - "#address-cells"
0046   - "#size-cells"
0047   - ranges
0048   - reg
0049   - clocks
0050
0051 additionalProperties: false
0052
0053 examples:
0054   - |
0055     #include <dt-bindings/clock/ingenic,jz4780-cgu.h>
0056     #include <dt-bindings/gpio/gpio.h>
0057     nemc: memory-controller@13410000 {
0058       compatible = "ingenic,jz4780-nemc";
0059       reg = <0x13410000 0x10000>;
0060       #address-cells = <2>;
0061       #size-cells = <1>;
0062       ranges = <1 0 0x1b000000 0x1000000>,
0063          <2 0 0x1a000000 0x1000000>,
0064          <3 0 0x19000000 0x1000000>,
0065          <4 0 0x18000000 0x1000000>,
0066          <5 0 0x17000000 0x1000000>,
0067          <6 0 0x16000000 0x1000000>;
0068
0069       clocks = <&cgu JZ4780_CLK_NEMC>;
0070
0071       ethernet@6 {
0072         compatible = "davicom,dm9000";
0073         davicom,no-eeprom;
0074
0075         pinctrl-names = "default";
0076         pinctrl-0 = <&pins_nemc_cs6>;
0077
0078         reg = <6 0 1>, /* addr */
0079               <6 2 1>; /* data */
0080
0081         ingenic,nemc-tAS = <15>;
0082         ingenic,nemc-tAH = <10>;
0083         ingenic,nemc-tBP = <20>;
0084         ingenic,nemc-tAW = <50>;
0085         ingenic,nemc-tSTRV = <100>;
0086
0087         reset-gpios = <&gpf 12 GPIO_ACTIVE_HIGH>;
0088         vcc-supply = <&eth0_power>;
0089
0090         interrupt-parent = <&gpe>;
0091         interrupts = <19 4>;
0092       };
0093     };