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Message-ID: <20240206173115.7654-6-ansuelsmth@gmail.com>
Date: Tue, 6 Feb 2024 18:31:08 +0100
From: Christian Marangi <ansuelsmth@...il.com>
To: "David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>,
Bjorn Andersson <andersson@...nel.org>,
Konrad Dybcio <konrad.dybcio@...aro.org>,
Andrew Lunn <andrew@...n.ch>,
Heiner Kallweit <hkallweit1@...il.com>,
Russell King <linux@...linux.org.uk>,
Florian Fainelli <florian.fainelli@...adcom.com>,
Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>,
Christian Marangi <ansuelsmth@...il.com>,
Robert Marko <robert.marko@...tura.hr>,
netdev@...r.kernel.org,
devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org,
linux-arm-msm@...r.kernel.org
Cc: Conor Dooley <conor.dooley@...rochip.com>
Subject: [net-next PATCH v7 05/10] dt-bindings: net: Document Qcom QCA807x PHY package
Document Qcom QCA807x PHY package.
Qualcomm QCA807X Ethernet PHY is PHY package of 2 or 5
IEEE 802.3 clause 22 compliant 10BASE-Te, 100BASE-TX and
1000BASE-T PHY-s.
Document the required property to make the PHY package correctly
configure and work.
Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
Reviewed-by: Conor Dooley <conor.dooley@...rochip.com>
---
.../devicetree/bindings/net/qcom,qca807x.yaml | 184 ++++++++++++++++++
1 file changed, 184 insertions(+)
create mode 100644 Documentation/devicetree/bindings/net/qcom,qca807x.yaml
diff --git a/Documentation/devicetree/bindings/net/qcom,qca807x.yaml b/Documentation/devicetree/bindings/net/qcom,qca807x.yaml
new file mode 100644
index 000000000000..7290024024f5
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/qcom,qca807x.yaml
@@ -0,0 +1,184 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/qcom,qca807x.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Qualcomm QCA807x Ethernet PHY
+
+maintainers:
+ - Christian Marangi <ansuelsmth@...il.com>
+ - Robert Marko <robert.marko@...tura.hr>
+
+description: |
+ Qualcomm QCA8072/5 Ethernet PHY is PHY package of 2 or 5
+ IEEE 802.3 clause 22 compliant 10BASE-Te, 100BASE-TX and
+ 1000BASE-T PHY-s.
+
+ They feature 2 SerDes, one for PSGMII or QSGMII connection with
+ MAC, while second one is SGMII for connection to MAC or fiber.
+
+ Both models have a combo port that supports 1000BASE-X and
+ 100BASE-FX fiber.
+
+ Each PHY inside of QCA807x series has 4 digitally controlled
+ output only pins that natively drive LED-s for up to 2 attached
+ LEDs. Some vendor also use these 4 output for GPIO usage without
+ attaching LEDs.
+
+ Note that output pins can be set to drive LEDs OR GPIO, mixed
+ definition are not accepted.
+
+$ref: ethernet-phy-package.yaml#
+
+properties:
+ compatible:
+ enum:
+ - qcom,qca8072-package
+ - qcom,qca8075-package
+
+ qcom,package-mode:
+ description: |
+ PHY package can be configured in 3 mode following this table:
+
+ First Serdes mode Second Serdes mode
+ Option 1 PSGMII for copper Disabled
+ ports 0-4
+ Option 2 PSGMII for copper 1000BASE-X / 100BASE-FX
+ ports 0-4
+ Option 3 QSGMII for copper SGMII for
+ ports 0-3 copper port 4
+
+ PSGMII mode (option 1 or 2) is configured dynamically based on
+ the presence of a connected SFP device.
+ $ref: /schemas/types.yaml#/definitions/string
+ enum:
+ - qsgmii
+ - psgmii
+ default: psgmii
+
+ qcom,tx-drive-strength-milliwatt:
+ description: set the TX Amplifier value in mv.
+ $ref: /schemas/types.yaml#/definitions/uint32
+ enum: [140, 160, 180, 200, 220,
+ 240, 260, 280, 300, 320,
+ 400, 500, 600]
+ default: 600
+
+patternProperties:
+ ^ethernet-phy@[a-f0-9]+$:
+ $ref: ethernet-phy.yaml#
+
+ properties:
+ qcom,dac-full-amplitude:
+ description:
+ Set Analog MDI driver amplitude to FULL.
+
+ With this not defined, amplitude is set to DSP.
+ (amplitude is adjusted based on cable length)
+
+ With this enabled and qcom,dac-full-bias-current
+ and qcom,dac-disable-bias-current-tweak disabled,
+ bias current is half.
+ type: boolean
+
+ qcom,dac-full-bias-current:
+ description:
+ Set Analog MDI driver bias current to FULL.
+
+ With this not defined, bias current is set to DSP.
+ (bias current is adjusted based on cable length)
+
+ Actual bias current might be different with
+ qcom,dac-disable-bias-current-tweak disabled.
+ type: boolean
+
+ qcom,dac-disable-bias-current-tweak:
+ description: |
+ Set Analog MDI driver bias current to disable tweak
+ to bias current.
+
+ With this not defined, bias current tweak are enabled
+ by default.
+
+ With this enabled the following tweak are NOT applied:
+ - With both FULL amplitude and FULL bias current: bias current
+ is set to half.
+ - With only DSP amplitude: bias current is set to half and
+ is set to 1/4 with cable < 10m.
+ - With DSP bias current (included both DSP amplitude and
+ DSP bias current): bias current is half the detected current
+ with cable < 10m.
+ type: boolean
+
+ gpio-controller: true
+
+ '#gpio-cells':
+ const: 2
+
+ if:
+ required:
+ - gpio-controller
+ then:
+ properties:
+ leds: false
+
+ unevaluatedProperties: false
+
+required:
+ - compatible
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/leds/common.h>
+
+ mdio {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethernet-phy-package@0 {
+ #address-cells = <1>;
+ #size-cells = <0>;
+ compatible = "qcom,qca8075-package";
+ reg = <0>;
+
+ qcom,package-mode = "qsgmii";
+
+ ethernet-phy@0 {
+ reg = <0>;
+
+ leds {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ led@0 {
+ reg = <0>;
+ color = <LED_COLOR_ID_GREEN>;
+ function = LED_FUNCTION_LAN;
+ default-state = "keep";
+ };
+ };
+ };
+
+ ethernet-phy@1 {
+ reg = <1>;
+ };
+
+ ethernet-phy@2 {
+ reg = <2>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+ };
+
+ ethernet-phy@3 {
+ reg = <3>;
+ };
+
+ ethernet-phy@4 {
+ reg = <4>;
+ };
+ };
+ };
--
2.43.0
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