# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id:
http://devicetree.org/schemas/mtd/ingenic,nand.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: Ingenic SoCs NAND controller
maintainers:
- Paul Cercueil <paul@crapouillou.net>
allOf:
- $ref: nand-controller.yaml#
- $ref: /schemas/memory-controllers/ingenic,nemc-peripherals.yaml#
properties:
compatible:
enum:
- ingenic,jz4740-nand
- ingenic,jz4725b-nand
- ingenic,jz4780-nand
reg:
items:
- description: Bank number, offset and size of first attached NAND chip
- description: Bank number, offset and size of second attached NAND chip
- description: Bank number, offset and size of third attached NAND chip
- description: Bank number, offset and size of fourth attached NAND chip
minItems: 1
ecc-engine: true
partitions:
type: object
deprecated: true
description:
Node containing description of fixed partitions.
patternProperties:
"^nand@[a-f0-9]$":
type: object
$ref: raw-nand-chip.yaml
properties:
rb-gpios:
description: GPIO specifier for the busy pin.
maxItems: 1
wp-gpios:
description: GPIO specifier for the write-protect pin.
maxItems: 1
unevaluatedProperties: false
required:
- compatible
- reg
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/clock/ingenic,jz4780-cgu.h>
memory-controller@13410000 {
compatible = "ingenic,jz4780-nemc";
reg = <0x13410000 0x10000>;
#address-cells = <2>;
#size-cells = <1>;
ranges = <1 0 0x1b000000 0x1000000>,
<2 0 0x1a000000 0x1000000>,
<3 0 0x19000000 0x1000000>,
<4 0 0x18000000 0x1000000>,
<5 0 0x17000000 0x1000000>,
<6 0 0x16000000 0x1000000>;
clocks = <&cgu JZ4780_CLK_NEMC>;
nand-controller@1 {
compatible = "ingenic,jz4780-nand";
reg = <1 0 0x1000000>;
#address-cells = <1>;
#size-cells = <0>;
ecc-engine = <&bch>;
ingenic,nemc-tAS = <10>;
ingenic,nemc-tAH = <5>;
ingenic,nemc-tBP = <10>;
ingenic,nemc-tAW = <15>;
ingenic,nemc-tSTRV = <100>;
pinctrl-names = "default";
pinctrl-0 = <&pins_nemc>;
nand@1 {
reg = <1>;
nand-ecc-step-size = <1024>;
nand-ecc-strength = <24>;
nand-ecc-mode = "hw";
nand-on-flash-bbt;
pinctrl-names = "default";
pinctrl-0 = <&pins_nemc_cs1>;
partitions {
compatible = "fixed-partitions";
#address-cells = <2>;
#size-cells = <2>;
partition@0 {
label = "u-boot-spl";
reg = <0x0 0x0 0x0 0x800000>;
};
partition@800000 {
label = "u-boot";
reg = <0x0 0x800000 0x0 0x200000>;
};
partition@a00000 {
label = "u-boot-env";
reg = <0x0 0xa00000 0x0 0x200000>;
};
partition@c00000 {
label = "boot";
reg = <0x0 0xc00000 0x0 0x4000000>;
};
partition@4c00000 {
label = "system";
reg = <0x0 0x4c00000 0x1 0xfb400000>;
};
};
};
};
};
