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Message-Id: <20240530-vitesse-schema-v1-1-8509ad9b03f8@linaro.org>
Date: Thu, 30 May 2024 23:53:07 +0200
From: Linus Walleij <linus.walleij@...aro.org>
To: Pawel Dembicki <paweldembicki@...il.com>, Andrew Lunn <andrew@...n.ch>,
Florian Fainelli <f.fainelli@...il.com>,
Vladimir Oltean <olteanv@...il.com>,
"David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley <conor+dt@...nel.org>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org,
Linus Walleij <linus.walleij@...aro.org>
Subject: [PATCH] dt-bindings: dsa: Rewrite Vitesse VSC73xx in schema
This rewrites the Vitesse VSC73xx DSA switches DT binding in
schema.
It was a bit tricky since I needed to come up with some way
of applying the SPI properties only on SPI devices and not
platform devices, but I figured something out that works.
Signed-off-by: Linus Walleij <linus.walleij@...aro.org>
---
.../bindings/net/dsa/vitesse,vsc73xx.txt | 129 ----------------
.../bindings/net/dsa/vitesse,vsc73xx.yaml | 162 +++++++++++++++++++++
2 files changed, 162 insertions(+), 129 deletions(-)
diff --git a/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt b/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
deleted file mode 100644
index 258bef483673..000000000000
--- a/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
+++ /dev/null
@@ -1,129 +0,0 @@
-Vitesse VSC73xx Switches
-========================
-
-This defines device tree bindings for the Vitesse VSC73xx switch chips.
-The Vitesse company has been acquired by Microsemi and Microsemi has
-been acquired Microchip but retains this vendor branding.
-
-The currently supported switch chips are:
-Vitesse VSC7385 SparX-G5 5+1-port Integrated Gigabit Ethernet Switch
-Vitesse VSC7388 SparX-G8 8-port Integrated Gigabit Ethernet Switch
-Vitesse VSC7395 SparX-G5e 5+1-port Integrated Gigabit Ethernet Switch
-Vitesse VSC7398 SparX-G8e 8-port Integrated Gigabit Ethernet Switch
-
-This switch could have two different management interface.
-
-If SPI interface is used, the device tree node is an SPI device so it must
-reside inside a SPI bus device tree node, see spi/spi-bus.txt
-
-When the chip is connected to a parallel memory bus and work in memory-mapped
-I/O mode, a platform device is used to represent the vsc73xx. In this case it
-must reside inside a platform bus device tree node.
-
-Required properties:
-
-- compatible: must be exactly one of:
- "vitesse,vsc7385"
- "vitesse,vsc7388"
- "vitesse,vsc7395"
- "vitesse,vsc7398"
-- gpio-controller: indicates that this switch is also a GPIO controller,
- see gpio/gpio.txt
-- #gpio-cells: this must be set to <2> and indicates that we are a twocell
- GPIO controller, see gpio/gpio.txt
-
-Optional properties:
-
-- reset-gpios: a handle to a GPIO line that can issue reset of the chip.
- It should be tagged as active low.
-
-Required subnodes:
-
-See net/dsa/dsa.txt for a list of additional required and optional properties
-and subnodes of DSA switches.
-
-Examples:
-
-SPI:
-switch@0 {
- compatible = "vitesse,vsc7395";
- reg = <0>;
- /* Specified for 2.5 MHz or below */
- spi-max-frequency = <2500000>;
- gpio-controller;
- #gpio-cells = <2>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- label = "lan1";
- };
- port@1 {
- reg = <1>;
- label = "lan2";
- };
- port@2 {
- reg = <2>;
- label = "lan3";
- };
- port@3 {
- reg = <3>;
- label = "lan4";
- };
- vsc: port@6 {
- reg = <6>;
- ethernet = <&gmac1>;
- phy-mode = "rgmii";
- fixed-link {
- speed = <1000>;
- full-duplex;
- pause;
- };
- };
- };
-};
-
-Platform:
-switch@2,0 {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "vitesse,vsc7385";
- reg = <0x2 0x0 0x20000>;
- reset-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
-
- ports {
- #address-cells = <1>;
- #size-cells = <0>;
-
- port@0 {
- reg = <0>;
- label = "lan1";
- };
- port@1 {
- reg = <1>;
- label = "lan2";
- };
- port@2 {
- reg = <2>;
- label = "lan3";
- };
- port@3 {
- reg = <3>;
- label = "lan4";
- };
- vsc: port@6 {
- reg = <6>;
- ethernet = <&enet0>;
- phy-mode = "rgmii";
- fixed-link {
- speed = <1000>;
- full-duplex;
- pause;
- };
- };
- };
-
-};
diff --git a/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.yaml b/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.yaml
new file mode 100644
index 000000000000..b99d7a694b70
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.yaml
@@ -0,0 +1,162 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/net/dsa/vitesse,vsc73xx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Vitesse VSC73xx DSA Switches
+
+maintainers:
+ - Linus Walleij <linus.walleij@...aro.org>
+
+description:
+ The Vitesse DSA Switches were produced in the early-to-mid 2000s.
+
+ The Vitesse company has been acquired by Microsemi and Microsemi has
+ been acquired Microchip but the new owner retains this vendor branding.
+
+ The currently supported switch chips are
+ Vitesse VSC7385 SparX-G5 5+1-port Integrated Gigabit Ethernet Switch
+ Vitesse VSC7388 SparX-G8 8-port Integrated Gigabit Ethernet Switch
+ Vitesse VSC7395 SparX-G5e 5+1-port Integrated Gigabit Ethernet Switch
+ Vitesse VSC7398 SparX-G8e 8-port Integrated Gigabit Ethernet Switch
+
+ This switch can use one of two different management interfaces.
+
+ If SPI interface is used, the device tree node is an SPI device so it must
+ reside inside a SPI bus device tree node, see spi/spi-bus.txt
+
+ When the chip is connected to a parallel memory bus and work in memory-mapped
+ I/O mode, a platform device is used to represent the vsc73xx. In this case it
+ must reside inside a platform bus device tree node.
+
+properties:
+ compatible:
+ enum:
+ - vitesse,vsc7385
+ - vitesse,vsc7388
+ - vitesse,vsc7395
+ - vitesse,vsc7398
+
+ reg:
+ maxItems: 1
+
+ gpio-controller: true
+ "#gpio-cells":
+ const: 2
+
+ reset-gpios:
+ description: GPIO to be used to reset the whole device
+ maxItems: 1
+
+allOf:
+ - $ref: dsa.yaml#/$defs/ethernet-ports
+
+# This checks if reg is a chipselect so the device is on an SPI
+# bus, the if-clause will fail if reg is a tuple such as for a
+# platform device.
+if:
+ properties:
+ reg:
+ minimum: 0
+ maximum: 256
+then:
+ $ref: /schemas/spi/spi-peripheral-props.yaml#
+
+required:
+ - compatible
+ - reg
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ #include <dt-bindings/gpio/gpio.h>
+
+ spi {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethernet-switch@0 {
+ compatible = "vitesse,vsc7395";
+ reg = <0>;
+ spi-max-frequency = <2500000>;
+ gpio-controller;
+ #gpio-cells = <2>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethernet-port@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+ ethernet-port@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+ ethernet-port@2 {
+ reg = <2>;
+ label = "lan3";
+ };
+ ethernet-port@3 {
+ reg = <3>;
+ label = "lan4";
+ };
+ ethernet-port@6 {
+ reg = <6>;
+ ethernet = <&gmac1>;
+ phy-mode = "rgmii";
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
+
+ bus {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ ethernet-switch@...00000 {
+ compatible = "vitesse,vsc7385";
+ reg = <0x10000000 0x20000>;
+ reset-gpios = <&gpio0 12 GPIO_ACTIVE_LOW>;
+
+ ethernet-ports {
+ #address-cells = <1>;
+ #size-cells = <0>;
+
+ ethernet-port@0 {
+ reg = <0>;
+ label = "lan1";
+ };
+ ethernet-port@1 {
+ reg = <1>;
+ label = "lan2";
+ };
+ ethernet-port@2 {
+ reg = <2>;
+ label = "lan3";
+ };
+ ethernet-port@3 {
+ reg = <3>;
+ label = "lan4";
+ };
+ ethernet-port@6 {
+ reg = <6>;
+ ethernet = <&enet0>;
+ phy-mode = "rgmii";
+ fixed-link {
+ speed = <1000>;
+ full-duplex;
+ pause;
+ };
+ };
+ };
+ };
+ };
---
base-commit: 1613e604df0cd359cf2a7fbd9be7a0bcfacfabd0
change-id: 20240529-vitesse-schema-56e59067012d
Best regards,
--
Linus Walleij <linus.walleij@...aro.org>
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