ingenic,nand.yaml (3389B)
1# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/mtd/ingenic,nand.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Ingenic SoCs NAND controller devicetree bindings 8 9maintainers: 10 - Paul Cercueil <paul@crapouillou.net> 11 12allOf: 13 - $ref: nand-controller.yaml# 14 - $ref: /schemas/memory-controllers/ingenic,nemc-peripherals.yaml# 15 16properties: 17 compatible: 18 enum: 19 - ingenic,jz4740-nand 20 - ingenic,jz4725b-nand 21 - ingenic,jz4780-nand 22 23 reg: 24 items: 25 - description: Bank number, offset and size of first attached NAND chip 26 - description: Bank number, offset and size of second attached NAND chip 27 - description: Bank number, offset and size of third attached NAND chip 28 - description: Bank number, offset and size of fourth attached NAND chip 29 minItems: 1 30 31 ecc-engine: true 32 33 partitions: 34 type: object 35 description: 36 Node containing description of fixed partitions. 37 See Documentation/devicetree/bindings/mtd/partition.txt 38 39patternProperties: 40 "^nand@[a-f0-9]$": 41 type: object 42 properties: 43 rb-gpios: 44 description: GPIO specifier for the busy pin. 45 maxItems: 1 46 47 wp-gpios: 48 description: GPIO specifier for the write-protect pin. 49 maxItems: 1 50 51required: 52 - compatible 53 - reg 54 55unevaluatedProperties: false 56 57examples: 58 - | 59 #include <dt-bindings/clock/ingenic,jz4780-cgu.h> 60 memory-controller@13410000 { 61 compatible = "ingenic,jz4780-nemc"; 62 reg = <0x13410000 0x10000>; 63 #address-cells = <2>; 64 #size-cells = <1>; 65 ranges = <1 0 0x1b000000 0x1000000>, 66 <2 0 0x1a000000 0x1000000>, 67 <3 0 0x19000000 0x1000000>, 68 <4 0 0x18000000 0x1000000>, 69 <5 0 0x17000000 0x1000000>, 70 <6 0 0x16000000 0x1000000>; 71 72 clocks = <&cgu JZ4780_CLK_NEMC>; 73 74 nand-controller@1 { 75 compatible = "ingenic,jz4780-nand"; 76 reg = <1 0 0x1000000>; 77 78 #address-cells = <1>; 79 #size-cells = <0>; 80 81 ecc-engine = <&bch>; 82 83 ingenic,nemc-tAS = <10>; 84 ingenic,nemc-tAH = <5>; 85 ingenic,nemc-tBP = <10>; 86 ingenic,nemc-tAW = <15>; 87 ingenic,nemc-tSTRV = <100>; 88 89 pinctrl-names = "default"; 90 pinctrl-0 = <&pins_nemc>; 91 92 nand@1 { 93 reg = <1>; 94 95 nand-ecc-step-size = <1024>; 96 nand-ecc-strength = <24>; 97 nand-ecc-mode = "hw"; 98 nand-on-flash-bbt; 99 100 pinctrl-names = "default"; 101 pinctrl-0 = <&pins_nemc_cs1>; 102 103 partitions { 104 compatible = "fixed-partitions"; 105 #address-cells = <2>; 106 #size-cells = <2>; 107 108 partition@0 { 109 label = "u-boot-spl"; 110 reg = <0x0 0x0 0x0 0x800000>; 111 }; 112 113 partition@800000 { 114 label = "u-boot"; 115 reg = <0x0 0x800000 0x0 0x200000>; 116 }; 117 118 partition@a00000 { 119 label = "u-boot-env"; 120 reg = <0x0 0xa00000 0x0 0x200000>; 121 }; 122 123 partition@c00000 { 124 label = "boot"; 125 reg = <0x0 0xc00000 0x0 0x4000000>; 126 }; 127 128 partition@4c00000 { 129 label = "system"; 130 reg = <0x0 0x4c00000 0x1 0xfb400000>; 131 }; 132 }; 133 }; 134 }; 135 };