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Diffstat (limited to 'Documentation/devicetree/bindings/mtd/nvidia,tegra20-nand.yaml')
| -rw-r--r-- | Documentation/devicetree/bindings/mtd/nvidia,tegra20-nand.yaml | 102 |
1 files changed, 102 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/mtd/nvidia,tegra20-nand.yaml b/Documentation/devicetree/bindings/mtd/nvidia,tegra20-nand.yaml new file mode 100644 index 000000000000..b417d72fa0de --- /dev/null +++ b/Documentation/devicetree/bindings/mtd/nvidia,tegra20-nand.yaml @@ -0,0 +1,102 @@ +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +%YAML 1.2 +--- +$id: http://devicetree.org/schemas/mtd/nvidia,tegra20-nand.yaml# +$schema: http://devicetree.org/meta-schemas/core.yaml# + +title: NVIDIA Tegra NAND Flash Controller + +maintainers: + - Jonathan Hunter <jonathanh@nvidia.com> + +allOf: + - $ref: nand-controller.yaml + +description: + The NVIDIA NAND controller provides an interface between NVIDIA SoCs + and raw NAND flash devices. It supports standard NAND operations, + hardware-assisted ECC, OOB data access, and DMA transfers, and + integrates with the Linux MTD NAND subsystem for reliable flash management. + +properties: + compatible: + const: nvidia,tegra20-nand + + reg: + maxItems: 1 + + interrupts: + maxItems: 1 + + clocks: + maxItems: 1 + + clock-names: + items: + - const: nand + + resets: + maxItems: 1 + + reset-names: + items: + - const: nand + + power-domains: + maxItems: 1 + + operating-points-v2: + maxItems: 1 + +patternProperties: + '^nand@': + type: object + description: Individual NAND chip connected to the NAND controller + $ref: raw-nand-chip.yaml# + + properties: + reg: + maximum: 5 + + unevaluatedProperties: false + +required: + - compatible + - reg + - interrupts + - clocks + - clock-names + - resets + - reset-names + +unevaluatedProperties: false + +examples: + - | + #include <dt-bindings/interrupt-controller/arm-gic.h> + #include <dt-bindings/clock/tegra20-car.h> + #include <dt-bindings/gpio/tegra-gpio.h> + + nand-controller@70008000 { + compatible = "nvidia,tegra20-nand"; + reg = <0x70008000 0x100>; + interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&tegra_car TEGRA20_CLK_NDFLASH>; + clock-names = "nand"; + resets = <&tegra_car 13>; + reset-names = "nand"; + #address-cells = <1>; + #size-cells = <0>; + + nand@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <1>; + nand-bus-width = <8>; + nand-on-flash-bbt; + nand-ecc-algo = "bch"; + nand-ecc-strength = <8>; + wp-gpios = <&gpio TEGRA_GPIO(S, 0) GPIO_ACTIVE_LOW>; + }; + }; +... |
