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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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db7d3cbd6a
The Allwinner H6 has introduced an IOMMU. Let's add a device tree binding for it. Signed-off-by: Maxime Ripard <maxime@cerno.tech> Reviewed-by: Rob Herring <robh@kernel.org> Link: https://lore.kernel.org/r/f3e1633677a9cf9cf36fe3582f0168fae94c1b3e.1589378833.git-series.maxime@cerno.tech Signed-off-by: Joerg Roedel <jroedel@suse.de>
62 lines
1.2 KiB
YAML
62 lines
1.2 KiB
YAML
# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/iommu/allwinner,sun50i-h6-iommu.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Allwinner H6 IOMMU Device Tree Bindings
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maintainers:
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- Chen-Yu Tsai <wens@csie.org>
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- Maxime Ripard <mripard@kernel.org>
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properties:
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"#iommu-cells":
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const: 1
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description:
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The content of the cell is the master ID.
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compatible:
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const: allwinner,sun50i-h6-iommu
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reg:
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maxItems: 1
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interrupts:
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maxItems: 1
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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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- "#iommu-cells"
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- compatible
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- reg
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- interrupts
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- clocks
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- resets
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additionalProperties: 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/interrupt-controller/irq.h>
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#include <dt-bindings/clock/sun50i-h6-ccu.h>
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#include <dt-bindings/reset/sun50i-h6-ccu.h>
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iommu: iommu@30f0000 {
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compatible = "allwinner,sun50i-h6-iommu";
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reg = <0x030f0000 0x10000>;
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interrupts = <GIC_SPI 57 IRQ_TYPE_LEVEL_HIGH>;
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clocks = <&ccu CLK_BUS_IOMMU>;
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resets = <&ccu RST_BUS_IOMMU>;
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#iommu-cells = <1>;
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};
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...
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