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128 lines
3.4 KiB
YAML
128 lines
3.4 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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$id: http://devicetree.org/schemas/power/fsl,imx-gpcv2.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Freescale i.MX General Power Controller v2
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maintainers:
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- Andrey Smirnov <andrew.smirnov@gmail.com>
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description: |
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The i.MX7S/D General Power Control (GPC) block contains Power Gating
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Control (PGC) for various power domains.
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Power domains contained within GPC node are generic power domain
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providers, documented in
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Documentation/devicetree/bindings/power/power-domain.yaml, which are
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described as subnodes of the power gating controller 'pgc' node.
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IP cores belonging to a power domain should contain a 'power-domains'
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property that is a phandle for PGC node representing the domain.
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properties:
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compatible:
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enum:
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- fsl,imx7d-gpc
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- fsl,imx8mn-gpc
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- fsl,imx8mq-gpc
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- fsl,imx8mm-gpc
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- fsl,imx8mp-gpc
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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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interrupt-controller: true
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'#interrupt-cells':
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const: 3
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pgc:
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type: object
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description: list of power domains provided by this controller.
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patternProperties:
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"power-domain@[0-9]$":
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type: object
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properties:
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'#power-domain-cells':
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const: 0
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reg:
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description: |
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Power domain index. Valid values are defined in
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include/dt-bindings/power/imx7-power.h for fsl,imx7d-gpc and
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include/dt-bindings/power/imx8m-power.h for fsl,imx8mq-gpc
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include/dt-bindings/power/imx8mm-power.h for fsl,imx8mm-gpc
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include/dt-bindings/power/imx8mp-power.h for fsl,imx8mp-gpc
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maxItems: 1
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clocks:
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description: |
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A number of phandles to clocks that need to be enabled during domain
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power-up sequencing to ensure reset propagation into devices located
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inside this power domain.
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minItems: 1
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maxItems: 5
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power-supply: true
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resets:
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description: |
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A number of phandles to resets that need to be asserted during
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power-up sequencing of the domain. The resets belong to devices
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located inside the power domain, which need to be held in reset
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across the power-up sequence. So no means to specify what each
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reset is in a generic power-domain binding.
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minItems: 1
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maxItems: 4
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required:
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- '#power-domain-cells'
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- reg
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required:
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- compatible
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- reg
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- interrupts
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- pgc
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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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gpc@303a0000 {
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compatible = "fsl,imx7d-gpc";
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reg = <0x303a0000 0x1000>;
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interrupts = <GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH>;
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pgc {
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#address-cells = <1>;
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#size-cells = <0>;
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pgc_mipi_phy: power-domain@0 {
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#power-domain-cells = <0>;
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reg = <0>;
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power-supply = <®_1p0d>;
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};
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pgc_pcie_phy: power-domain@1 {
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#power-domain-cells = <0>;
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reg = <1>;
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power-supply = <®_1p0d>;
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};
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pgc_hsic_phy: power-domain@2 {
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#power-domain-cells = <0>;
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reg = <2>;
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power-supply = <®_1p2>;
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};
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};
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};
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