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