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dt-bindings: phy: Convert brcm,sr-pcie-phy to DT schema

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Convert the Broadcom Stingray PCIe PHY binding to DT schema format. It's
a straight forward conversion.

Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://lore.kernel.org/r/20250607212508.741193-1-robh@kernel.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
This commit is contained in:
Rob Herring (Arm)
2025-06-07 16:25:07 -05:00
committed by Vinod Koul
parent f151f3a6eb
commit 6725c334e9
2 changed files with 46 additions and 41 deletions
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41
Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.txt
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Broadcom Stingray PCIe PHY
Required properties:
- compatible: must be "brcm,sr-pcie-phy"
- reg: base address and length of the PCIe SS register space
- brcm,sr-cdru: phandle to the CDRU syscon node
- brcm,sr-mhb: phandle to the MHB syscon node
- #phy-cells: Must be 1, denotes the PHY index
For PAXB based root complex, one can have a configuration of up to 8 PHYs
PHY index goes from 0 to 7
For the internal PAXC based root complex, PHY index is always 8
Example:
mhb: syscon@60401000 {
compatible = "brcm,sr-mhb", "syscon";
reg = <0 0x60401000 0 0x38c>;
};
cdru: syscon@6641d000 {
compatible = "brcm,sr-cdru", "syscon";
reg = <0 0x6641d000 0 0x400>;
};
pcie_phy: phy@40000000 {
compatible = "brcm,sr-pcie-phy";
reg = <0 0x40000000 0 0x800>;
brcm,sr-cdru = <&cdru>;
brcm,sr-mhb = <&mhb>;
#phy-cells = <1>;
};
/* users of the PCIe PHY */
pcie0: pcie@48000000 {
...
...
phys = <&pcie_phy 0>;
phy-names = "pcie-phy";
};

46
Documentation/devicetree/bindings/phy/brcm,sr-pcie-phy.yaml Normal file
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@@ -0,0 +1,46 @@
# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
%YAML 1.2
---
$id: http://devicetree.org/schemas/phy/brcm,sr-pcie-phy.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Broadcom Stingray PCIe PHY
maintainers:
- Ray Jui <ray.jui@broadcom.com>
description: >
For PAXB based root complex, one can have a configuration of up to 8 PHYs.
PHY index goes from 0 to 7.
For the internal PAXC based root complex, PHY index is always 8.
properties:
compatible:
const: brcm,sr-pcie-phy
reg:
maxItems: 1
'#phy-cells':
const: 1
brcm,sr-cdru:
description: phandle to the CDRU syscon node
$ref: /schemas/types.yaml#/definitions/phandle
brcm,sr-mhb:
description: phandle to the MHB syscon node
$ref: /schemas/types.yaml#/definitions/phandle
additionalProperties: false
examples:
- |
phy@40000000 {
compatible = "brcm,sr-pcie-phy";
reg = <0x40000000 0x800>;
brcm,sr-cdru = <&cdru>;
brcm,sr-mhb = <&mhb>;
#phy-cells = <1>;
};