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# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/mtd/st,stm32-fmc2-nand.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: STMicroelectronics Flexible Memory Controller 2 (FMC2) Bindings
maintainers:
- Christophe Kerello <christophe.kerello@foss.st.com>
properties:
compatible:
enum:
- st,stm32mp15-fmc2
- st,stm32mp1-fmc2-nfc
reg:
minItems: 6
maxItems: 7
interrupts:
maxItems: 1
dmas:
items:
- description: tx DMA channel
- description: rx DMA channel
- description: ecc DMA channel
dma-names:
items:
- const: tx
- const: rx
- const: ecc
patternProperties:
"^nand@[a-f0-9]$":
type: object
properties:
nand-ecc-step-size:
const: 512
nand-ecc-strength:
enum: [1, 4, 8]
allOf:
- $ref: "nand-controller.yaml#"
- if:
properties:
compatible:
contains:
const: st,stm32mp15-fmc2
then:
properties:
reg:
items:
- description: Registers
- description: Chip select 0 data
- description: Chip select 0 command
- description: Chip select 0 address space
- description: Chip select 1 data
- description: Chip select 1 command
- description: Chip select 1 address space
clocks:
maxItems: 1
resets:
maxItems: 1
required:
- clocks
- if:
properties:
compatible:
contains:
const: st,stm32mp1-fmc2-nfc
then:
properties:
reg:
items:
- description: Chip select 0 data
- description: Chip select 0 command
- description: Chip select 0 address space
- description: Chip select 1 data
- description: Chip select 1 command
- description: Chip select 1 address space
required:
- compatible
- reg
- interrupts
unevaluatedProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/arm-gic.h>
#include <dt-bindings/clock/stm32mp1-clks.h>
#include <dt-bindings/reset/stm32mp1-resets.h>
nand-controller@58002000 {
compatible = "st,stm32mp15-fmc2";
reg = <0x58002000 0x1000>,
<0x80000000 0x1000>,
<0x88010000 0x1000>,
<0x88020000 0x1000>,
<0x81000000 0x1000>,
<0x89010000 0x1000>,
<0x89020000 0x1000>;
interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
dmas = <&mdma1 20 0x2 0x12000a02 0x0 0x0>,
<&mdma1 20 0x2 0x12000a08 0x0 0x0>,
<&mdma1 21 0x2 0x12000a0a 0x0 0x0>;
dma-names = "tx", "rx", "ecc";
clocks = <&rcc FMC_K>;
resets = <&rcc FMC_R>;
#address-cells = <1>;
#size-cells = <0>;
nand@0 {
reg = <0>;
nand-on-flash-bbt;
#address-cells = <1>;
#size-cells = <1>;
};
};
...
|
