[PATCH 1/3 v2] net: dsa: Add DT bindings for Vitesse VSC73xx switches
From: Linus Walleij <hidden>
Date: 2018-06-30 11:17:29
Also in:
linux-devicetree
Subsystem:
networking drivers, networking [dsa], open firmware and flattened device tree bindings, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Vladimir Oltean, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds
This adds the device tree bindings for the Vitesse VSC73xx switches. We also add the vendor name for Vitesse. Cc: devicetree@vger.kernel.org Reviewed-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: Linus Walleij <redacted> --- ChangeLog v1->v2: - Fix spelling error - Properly reference the GPIO bindings - Collect Florians ACK --- .../bindings/net/dsa/vitesse,vsc73xx.txt | 81 +++++++++++++++++++ .../devicetree/bindings/vendor-prefixes.txt | 1 + 2 files changed, 82 insertions(+) create mode 100644 Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
diff --git a/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt b/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt
new file mode 100644
index 000000000000..ed4710c40641
--- /dev/null
+++ b/Documentation/devicetree/bindings/net/dsa/vitesse,vsc73xx.txt@@ -0,0 +1,81 @@ +Vitesse VSC73xx Switches +======================== + +This defines device tree bindings for the Vitesse VSC73xx switch chips. +The Vitesse company has been acquired by Microsemi and Microsemi in turn +acquired by 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 + +The device tree node is an SPI device so it must reside inside a SPI bus +device tree node, see spi/spi-bus.txt + +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: + +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>; + label = "cpu"; + ethernet = <&gmac1>; + phy-mode = "rgmii"; + fixed-link { + speed = <1000>; + full-duplex; + pause; + }; + }; + }; +};
diff --git a/Documentation/devicetree/bindings/vendor-prefixes.txt b/Documentation/devicetree/bindings/vendor-prefixes.txt
index 7cad066191ee..3e5398f87eac 100644
--- a/Documentation/devicetree/bindings/vendor-prefixes.txt
+++ b/Documentation/devicetree/bindings/vendor-prefixes.txt@@ -395,6 +395,7 @@ v3 V3 Semiconductor variscite Variscite Ltd. via VIA Technologies, Inc. virtio Virtual I/O Device Specification, developed by the OASIS consortium +vitesse Vitesse Semiconductor Corporation vivante Vivante Corporation vocore VoCore Studio voipac Voipac Technologies s.r.o.
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2.17.1