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7aa291962f
Introduce reset capability to EN7581 device-tree clock binding
documentation. Add reset register mapping between misc scu and pb scu
ones in order to follow the memory order. This change is not
introducing any backward compatibility issue since the EN7581 dts is not
upstream yet.
Fixes: 0a382be005 ("dt-bindings: clock: airoha: add EN7581 binding")
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: Rob Herring (Arm) <robh@kernel.org>
Signed-off-by: Lorenzo Bianconi <lorenzo@kernel.org>
Link: https://lore.kernel.org/r/28fef3e83062d5d71e7b4be4b47583f851a15bf8.1719485847.git.lorenzo@kernel.org
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
109 lines
2.5 KiB
YAML
109 lines
2.5 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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$id: http://devicetree.org/schemas/clock/airoha,en7523-scu.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: EN7523 Clock
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maintainers:
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- Felix Fietkau <nbd@nbd.name>
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- John Crispin <nbd@nbd.name>
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description: |
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This node defines the System Control Unit of the EN7523 SoC,
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a collection of registers configuring many different aspects of the SoC.
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The clock driver uses it to read and configure settings of the
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PLL controller, which provides clocks for the CPU, the bus and
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other SoC internal peripherals.
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Each clock is assigned an identifier and client nodes use this identifier
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to specify which clock they consume.
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All these identifiers can be found in:
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[1]: <include/dt-bindings/clock/en7523-clk.h>.
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The clocks are provided inside a system controller node.
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properties:
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compatible:
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items:
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- enum:
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- airoha,en7523-scu
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- airoha,en7581-scu
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reg:
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minItems: 2
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maxItems: 4
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"#clock-cells":
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description:
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The first cell indicates the clock number, see [1] for available
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clocks.
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const: 1
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'#reset-cells':
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description: ID of the controller reset line
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const: 1
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required:
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- compatible
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- reg
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- '#clock-cells'
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allOf:
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- if:
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properties:
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compatible:
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const: airoha,en7523-scu
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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: scu base address
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- description: misc scu base address
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'#reset-cells': false
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- if:
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properties:
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compatible:
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const: airoha,en7581-scu
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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: scu base address
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- description: misc scu base address
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- description: reset base address
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- description: pb scu base address
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additionalProperties: false
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examples:
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- |
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#include <dt-bindings/clock/en7523-clk.h>
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scu: system-controller@1fa20000 {
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compatible = "airoha,en7523-scu";
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reg = <0x1fa20000 0x400>,
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<0x1fb00000 0x1000>;
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#clock-cells = <1>;
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};
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- |
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soc {
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#address-cells = <2>;
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#size-cells = <2>;
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scuclk: clock-controller@1fa20000 {
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compatible = "airoha,en7581-scu";
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reg = <0x0 0x1fa20000 0x0 0x400>,
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<0x0 0x1fb00000 0x0 0x90>,
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<0x0 0x1fb00830 0x0 0x8>,
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<0x0 0x1fbe3400 0x0 0xfc>;
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#clock-cells = <1>;
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#reset-cells = <1>;
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};
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};
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