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125 lines
2.9 KiB
125 lines
2.9 KiB
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/memory-controllers/ingenic,nemc.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Ingenic SoCs NAND / External Memory Controller (NEMC) devicetree bindings |
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maintainers: |
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- Paul Cercueil <[email protected]> |
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properties: |
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$nodename: |
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pattern: "^memory-controller@[0-9a-f]+$" |
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compatible: |
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oneOf: |
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- enum: |
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- ingenic,jz4740-nemc |
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- ingenic,jz4780-nemc |
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- items: |
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- const: ingenic,jz4725b-nemc |
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- const: ingenic,jz4740-nemc |
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"#address-cells": |
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const: 2 |
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"#size-cells": |
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const: 1 |
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ranges: true |
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reg: |
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maxItems: 1 |
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clocks: |
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maxItems: 1 |
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patternProperties: |
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".*@[0-9]+$": |
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type: object |
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properties: |
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reg: |
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minItems: 1 |
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maxItems: 255 |
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ingenic,nemc-bus-width: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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enum: [8, 16] |
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description: Specifies the bus width in bits. |
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ingenic,nemc-tAS: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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description: Address setup time in nanoseconds. |
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ingenic,nemc-tAH: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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description: Address hold time in nanoseconds. |
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ingenic,nemc-tBP: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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description: Burst pitch time in nanoseconds. |
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ingenic,nemc-tAW: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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description: Address wait time in nanoseconds. |
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ingenic,nemc-tSTRV: |
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$ref: /schemas/types.yaml#/definitions/uint32 |
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description: Static memory recovery time in nanoseconds. |
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required: |
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- reg |
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required: |
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- compatible |
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- "#address-cells" |
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- "#size-cells" |
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- ranges |
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- reg |
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- clocks |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/clock/jz4780-cgu.h> |
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#include <dt-bindings/gpio/gpio.h> |
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nemc: memory-controller@13410000 { |
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compatible = "ingenic,jz4780-nemc"; |
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reg = <0x13410000 0x10000>; |
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#address-cells = <2>; |
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#size-cells = <1>; |
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ranges = <1 0 0x1b000000 0x1000000>, |
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<2 0 0x1a000000 0x1000000>, |
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<3 0 0x19000000 0x1000000>, |
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<4 0 0x18000000 0x1000000>, |
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<5 0 0x17000000 0x1000000>, |
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<6 0 0x16000000 0x1000000>; |
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clocks = <&cgu JZ4780_CLK_NEMC>; |
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ethernet@6 { |
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compatible = "davicom,dm9000"; |
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davicom,no-eeprom; |
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pinctrl-names = "default"; |
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pinctrl-0 = <&pins_nemc_cs6>; |
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reg = <6 0 1>, /* addr */ |
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<6 2 1>; /* data */ |
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ingenic,nemc-tAS = <15>; |
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ingenic,nemc-tAH = <10>; |
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ingenic,nemc-tBP = <20>; |
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ingenic,nemc-tAW = <50>; |
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ingenic,nemc-tSTRV = <100>; |
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reset-gpios = <&gpf 12 GPIO_ACTIVE_HIGH>; |
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vcc-supply = <ð0_power>; |
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interrupt-parent = <&gpe>; |
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interrupts = <19 4>; |
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}; |
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};
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