770ba14bd7
Several devices can be attached to memory controllers (or memory-mapped
buses), thus they can come with additional controller-specific
properties, e.g. devices wired under Intel IXP4XX bus: cfi-flash,
intel,ixp4xx-compact-flash, NS8250 serial and MAX6369 watchdog.
Referencing Memory Controller or IXP4XX bus peripheral properties fixes
few dtbs_check warnings like:
intel-ixp42x-gateworks-gw2348.dtb: ide@1,0: Unevaluated properties are not allowed
('intel,ixp4xx-eb-ahb-split-transfers', 'intel,ixp4xx-eb-byte-access', ... ' were unexpected)
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/r/20230206092624.22922-3-krzysztof.kozlowski@linaro.org
Signed-off-by: Rob Herring <robh@kernel.org>
63 lines
1.7 KiB
YAML
63 lines
1.7 KiB
YAML
# 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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$id: http://devicetree.org/schemas/ata/intel,ixp4xx-compact-flash.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Intel IXP4xx CompactFlash Card Controller
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maintainers:
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- Linus Walleij <linus.walleij@linaro.org>
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description: |
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The IXP4xx network processors have a CompactFlash interface that presents
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a CompactFlash card to the system as a true IDE (parallel ATA) device. The
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device is always connected to the expansion bus of the IXP4xx SoCs using one
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or two chip select areas and address translating logic on the board. The
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node must be placed inside a chip select node on the IXP4xx expansion bus.
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properties:
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compatible:
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const: intel,ixp4xx-compact-flash
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reg:
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items:
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- description: Command interface registers
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- description: Control interface registers
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interrupts:
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maxItems: 1
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required:
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- compatible
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- reg
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- interrupts
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allOf:
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- $ref: pata-common.yaml#
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- $ref: /schemas/memory-controllers/intel,ixp4xx-expansion-peripheral-props.yaml#
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unevaluatedProperties: false
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examples:
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- |
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#include <dt-bindings/interrupt-controller/irq.h>
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bus@c4000000 {
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compatible = "intel,ixp43x-expansion-bus-controller", "syscon";
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reg = <0xc4000000 0x1000>;
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native-endian;
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#address-cells = <2>;
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#size-cells = <1>;
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ranges = <0 0x0 0x50000000 0x01000000>, <1 0x0 0x51000000 0x01000000>;
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dma-ranges = <0 0x0 0x50000000 0x01000000>, <1 0x0 0x51000000 0x01000000>;
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ide@1,0 {
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compatible = "intel,ixp4xx-compact-flash";
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reg = <1 0x00000000 0x1000>, <1 0x00040000 0x1000>;
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interrupt-parent = <&gpio0>;
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interrupts = <12 IRQ_TYPE_EDGE_RISING>;
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};
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};
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...
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