arm64: dts: marvell: add DTS for Turris Mox
authorMarek Behún <marek.behun@nic.cz>
Wed, 28 Aug 2019 15:12:43 +0000 (17:12 +0200)
committerGregory CLEMENT <gregory.clement@bootlin.com>
Sat, 31 Aug 2019 07:24:31 +0000 (09:24 +0200)
This adds support for the Turris Mox board from CZ.NIC.

Turris Mox is as modular router based on the Armada 3720 SOC (same as
EspressoBin).

The basic board can be extended by different modules.
If those are connected, U-Boot lets the kernel know via device-tree.

Since modules can be connected in different order and some modules can
be connected multiple times (up to three modules containing 8-port
ethernet switch in DSA configuration can be connected) we decided
against using device-tree overlays, because it got complicated rather
quickly. (For example the SFP module can be connected directly to the
CPU, or after a switch module. There are four cases and all would need
different SFP overlay. There are two types of switch modules (8-port
with pass-through and 4-port with no pass-through). For those we would
again need at least 6 more overlays.)

We therefore decided to put all the possibly connected devices in one
device-tree and disable them by default. When U-Boot finds out which
modules are connected, it fixes the loaded device-tree accordingly just
before boot. By Rob Herring's suggestion we also made it so that U-Boot
completely removes nodes which are disabled after this fixup.

Signed-off-by: Marek Behún <marek.behun@nic.cz>
Cc: Rob Herring <robh@kernel.org>
Cc: Gregory CLEMENT <gregory.clement@bootlin.com>
Cc: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
arch/arm64/boot/dts/marvell/Makefile
arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts [new file with mode: 0644]

index caed433..243338c 100644 (file)
@@ -2,6 +2,7 @@
 # Mvebu SoC Family
 dtb-$(CONFIG_ARCH_MVEBU) += armada-3720-db.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-3720-espressobin.dtb
+dtb-$(CONFIG_ARCH_MVEBU) += armada-3720-turris-mox.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-3720-uDPU.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-7040-db.dtb
 dtb-$(CONFIG_ARCH_MVEBU) += armada-8040-clearfog-gt-8k.dtb
diff --git a/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts b/arch/arm64/boot/dts/marvell/armada-3720-turris-mox.dts
new file mode 100644 (file)
index 0000000..d105986
--- /dev/null
@@ -0,0 +1,840 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for CZ.NIC Turris Mox Board
+ * 2019 by Marek Behun <marek.behun@nic.cz>
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/bus/moxtet.h>
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include "armada-372x.dtsi"
+
+/ {
+       model = "CZ.NIC Turris Mox Board";
+       compatible = "cznic,turris-mox", "marvell,armada3720",
+                    "marvell,armada3710";
+
+       aliases {
+               spi0 = &spi0;
+               ethernet1 = &eth1;
+       };
+
+       chosen {
+               stdout-path = "serial0:115200n8";
+       };
+
+       memory@0 {
+               device_type = "memory";
+               reg = <0x00000000 0x00000000 0x00000000 0x20000000>;
+       };
+
+       leds {
+               compatible = "gpio-leds";
+               red {
+                       label = "mox:red:activity";
+                       gpios = <&gpiosb 21 GPIO_ACTIVE_LOW>;
+                       linux,default-trigger = "default-on";
+               };
+       };
+
+       gpio-keys {
+               compatible = "gpio-keys";
+
+               reset {
+                       label = "reset";
+                       linux,code = <KEY_RESTART>;
+                       gpios = <&gpiosb 20 GPIO_ACTIVE_LOW>;
+                       debounce-interval = <60>;
+               };
+       };
+
+       exp_usb3_vbus: usb3-vbus {
+               compatible = "regulator-fixed";
+               regulator-name = "usb3-vbus";
+               regulator-min-microvolt = <5000000>;
+               regulator-max-microvolt = <5000000>;
+               enable-active-high;
+               regulator-always-on;
+               gpio = <&gpiosb 0 GPIO_ACTIVE_HIGH>;
+       };
+
+       usb3_phy: usb3-phy {
+               compatible = "usb-nop-xceiv";
+               vcc-supply = <&exp_usb3_vbus>;
+       };
+
+       vsdc_reg: vsdc-reg {
+               compatible = "regulator-gpio";
+               regulator-name = "vsdc";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-boot-on;
+
+               gpios = <&gpiosb 23 GPIO_ACTIVE_HIGH>;
+               gpios-states = <0>;
+               states = <1800000 0x1
+                         3300000 0x0>;
+               enable-active-high;
+       };
+
+       vsdio_reg: vsdio-reg {
+               compatible = "regulator-gpio";
+               regulator-name = "vsdio";
+               regulator-min-microvolt = <1800000>;
+               regulator-max-microvolt = <3300000>;
+               regulator-boot-on;
+
+               gpios = <&gpiosb 22 GPIO_ACTIVE_HIGH>;
+               gpios-states = <0>;
+               states = <1800000 0x1
+                         3300000 0x0>;
+               enable-active-high;
+       };
+
+       sdhci1_pwrseq: sdhci1-pwrseq {
+               compatible = "mmc-pwrseq-simple";
+               reset-gpios = <&gpionb 19 GPIO_ACTIVE_HIGH>;
+               status = "okay";
+       };
+
+       sfp: sfp {
+               compatible = "sff,sfp+";
+               i2c-bus = <&i2c0>;
+               los-gpio = <&moxtet_sfp 0 GPIO_ACTIVE_HIGH>;
+               tx-fault-gpio = <&moxtet_sfp 1 GPIO_ACTIVE_HIGH>;
+               mod-def0-gpio = <&moxtet_sfp 2 GPIO_ACTIVE_LOW>;
+               tx-disable-gpio = <&moxtet_sfp 4 GPIO_ACTIVE_HIGH>;
+               rate-select0-gpio = <&moxtet_sfp 5 GPIO_ACTIVE_HIGH>;
+
+               /* enabled by U-Boot if SFP module is present */
+               status = "disabled";
+       };
+};
+
+&i2c0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&i2c1_pins>;
+       clock-frequency = <100000>;
+       status = "okay";
+
+       rtc@6f {
+               compatible = "microchip,mcp7940x";
+               reg = <0x6f>;
+       };
+};
+
+&pcie_reset_pins {
+       function = "gpio";
+};
+
+&pcie0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&pcie_reset_pins &pcie_clkreq_pins>;
+       status = "okay";
+       max-link-speed = <2>;
+       reset-gpios = <&gpiosb 3 GPIO_ACTIVE_LOW>;
+       phys = <&comphy1 0>;
+
+       /* enabled by U-Boot if PCIe module is present */
+       status = "disabled";
+};
+
+&uart0 {
+       status = "okay";
+};
+
+&eth0 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&rgmii_pins>;
+       phy-mode = "rgmii-id";
+       phy = <&phy1>;
+       status = "okay";
+};
+
+&eth1 {
+       phy-mode = "2500base-x";
+       managed = "in-band-status";
+       phys = <&comphy0 1>;
+};
+
+&sdhci0 {
+       wp-inverted;
+       bus-width = <4>;
+       cd-gpios = <&gpionb 10 GPIO_ACTIVE_HIGH>;
+       vqmmc-supply = <&vsdc_reg>;
+       marvell,pad-type = "sd";
+       status = "okay";
+};
+
+&sdhci1 {
+       pinctrl-names = "default";
+       pinctrl-0 = <&sdio_pins>;
+       non-removable;
+       bus-width = <4>;
+       marvell,pad-type = "sd";
+       vqmmc-supply = <&vsdio_reg>;
+       mmc-pwrseq = <&sdhci1_pwrseq>;
+       status = "okay";
+};
+
+&spi0 {
+       status = "okay";
+       pinctrl-names = "default";
+       pinctrl-0 = <&spi_quad_pins &spi_cs1_pins>;
+       assigned-clocks = <&nb_periph_clk 7>;
+       assigned-clock-parents = <&tbg 1>;
+       assigned-clock-rates = <20000000>;
+
+       spi-flash@0 {
+               #address-cells = <1>;
+               #size-cells = <1>;
+               compatible = "jedec,spi-nor";
+               reg = <0>;
+               spi-max-frequency = <20000000>;
+
+               partitions {
+                       compatible = "fixed-partitions";
+                       #address-cells = <1>;
+                       #size-cells = <1>;
+
+                       partition@0 {
+                               label = "secure-firmware";
+                               reg = <0x0 0x20000>;
+                       };
+
+                       partition@20000 {
+                               label = "u-boot";
+                               reg = <0x20000 0x160000>;
+                       };
+
+                       partition@180000 {
+                               label = "u-boot-env";
+                               reg = <0x180000 0x10000>;
+                       };
+
+                       partition@190000 {
+                               label = "Rescue system";
+                               reg = <0x190000 0x660000>;
+                       };
+
+                       partition@7f0000 {
+                               label = "dtb";
+                               reg = <0x7f0000 0x10000>;
+                       };
+               };
+       };
+
+       moxtet: moxtet@1 {
+               #address-cells = <1>;
+               #size-cells = <0>;
+               compatible = "cznic,moxtet";
+               reg = <1>;
+               reset-gpios = <&gpiosb 2 GPIO_ACTIVE_LOW>;
+               spi-max-frequency = <10000000>;
+               spi-cpol;
+               spi-cpha;
+               interrupt-controller;
+               #interrupt-cells = <1>;
+               interrupt-parent = <&gpiosb>;
+               interrupts = <5 IRQ_TYPE_EDGE_FALLING>;
+               status = "okay";
+
+               moxtet_sfp: gpio@0 {
+                       compatible = "cznic,moxtet-gpio";
+                       gpio-controller;
+                       #gpio-cells = <2>;
+                       reg = <0>;
+                       status = "disabled";
+               };
+       };
+};
+
+&usb2 {
+       status = "okay";
+};
+
+&usb3 {
+       status = "okay";
+       phys = <&comphy2 0>;
+       usb-phy = <&usb3_phy>;
+};
+
+&mdio {
+       pinctrl-names = "default";
+       pinctrl-0 = <&smi_pins>;
+       status = "okay";
+
+       phy1: ethernet-phy@1 {
+               reg = <1>;
+       };
+
+       /* switch nodes are enabled by U-Boot if modules are present */
+       switch0@10 {
+               compatible = "marvell,mv88e6190";
+               reg = <0x10 0>;
+               dsa,member = <0 0>;
+               interrupt-parent = <&moxtet>;
+               interrupts = <MOXTET_IRQ_PERIDOT(0)>;
+               status = "disabled";
+
+               mdio {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       switch0phy1: switch0phy1@1 {
+                               reg = <0x1>;
+                       };
+
+                       switch0phy2: switch0phy2@2 {
+                               reg = <0x2>;
+                       };
+
+                       switch0phy3: switch0phy3@3 {
+                               reg = <0x3>;
+                       };
+
+                       switch0phy4: switch0phy4@4 {
+                               reg = <0x4>;
+                       };
+
+                       switch0phy5: switch0phy5@5 {
+                               reg = <0x5>;
+                       };
+
+                       switch0phy6: switch0phy6@6 {
+                               reg = <0x6>;
+                       };
+
+                       switch0phy7: switch0phy7@7 {
+                               reg = <0x7>;
+                       };
+
+                       switch0phy8: switch0phy8@8 {
+                               reg = <0x8>;
+                       };
+               };
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@1 {
+                               reg = <0x1>;
+                               label = "lan1";
+                               phy-handle = <&switch0phy1>;
+                       };
+
+                       port@2 {
+                               reg = <0x2>;
+                               label = "lan2";
+                               phy-handle = <&switch0phy2>;
+                       };
+
+                       port@3 {
+                               reg = <0x3>;
+                               label = "lan3";
+                               phy-handle = <&switch0phy3>;
+                       };
+
+                       port@4 {
+                               reg = <0x4>;
+                               label = "lan4";
+                               phy-handle = <&switch0phy4>;
+                       };
+
+                       port@5 {
+                               reg = <0x5>;
+                               label = "lan5";
+                               phy-handle = <&switch0phy5>;
+                       };
+
+                       port@6 {
+                               reg = <0x6>;
+                               label = "lan6";
+                               phy-handle = <&switch0phy6>;
+                       };
+
+                       port@7 {
+                               reg = <0x7>;
+                               label = "lan7";
+                               phy-handle = <&switch0phy7>;
+                       };
+
+                       port@8 {
+                               reg = <0x8>;
+                               label = "lan8";
+                               phy-handle = <&switch0phy8>;
+                       };
+
+                       port@9 {
+                               reg = <0x9>;
+                               label = "cpu";
+                               ethernet = <&eth1>;
+                               phy-mode = "2500base-x";
+                               managed = "in-band-status";
+                       };
+
+                       switch0port10: port@a {
+                               reg = <0xa>;
+                               label = "dsa";
+                               phy-mode = "2500base-x";
+                               managed = "in-band-status";
+                               link = <&switch1port9 &switch2port9>;
+                               status = "disabled";
+                       };
+
+                       port-sfp@a {
+                               reg = <0xa>;
+                               label = "sfp";
+                               sfp = <&sfp>;
+                               phy-mode = "sgmii";
+                               managed = "in-band-status";
+                               status = "disabled";
+                       };
+               };
+       };
+
+       switch0@2 {
+               compatible = "marvell,mv88e6085";
+               reg = <0x2 0>;
+               dsa,member = <0 0>;
+               interrupt-parent = <&moxtet>;
+               interrupts = <MOXTET_IRQ_TOPAZ>;
+               status = "disabled";
+
+               mdio {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       switch0phy1_topaz: switch0phy1@11 {
+                               reg = <0x11>;
+                       };
+
+                       switch0phy2_topaz: switch0phy2@12 {
+                               reg = <0x12>;
+                       };
+
+                       switch0phy3_topaz: switch0phy3@13 {
+                               reg = <0x13>;
+                       };
+
+                       switch0phy4_topaz: switch0phy4@14 {
+                               reg = <0x14>;
+                       };
+               };
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@1 {
+                               reg = <0x1>;
+                               label = "lan1";
+                               phy-handle = <&switch0phy1_topaz>;
+                       };
+
+                       port@2 {
+                               reg = <0x2>;
+                               label = "lan2";
+                               phy-handle = <&switch0phy2_topaz>;
+                       };
+
+                       port@3 {
+                               reg = <0x3>;
+                               label = "lan3";
+                               phy-handle = <&switch0phy3_topaz>;
+                       };
+
+                       port@4 {
+                               reg = <0x4>;
+                               label = "lan4";
+                               phy-handle = <&switch0phy4_topaz>;
+                       };
+
+                       port@5 {
+                               reg = <0x5>;
+                               label = "cpu";
+                               phy-mode = "2500base-x";
+                               managed = "in-band-status";
+                               ethernet = <&eth1>;
+                       };
+               };
+       };
+
+       switch1@11 {
+               compatible = "marvell,mv88e6190";
+               reg = <0x11 0>;
+               dsa,member = <0 1>;
+               interrupt-parent = <&moxtet>;
+               interrupts = <MOXTET_IRQ_PERIDOT(1)>;
+               status = "disabled";
+
+               mdio {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       switch1phy1: switch1phy1@1 {
+                               reg = <0x1>;
+                       };
+
+                       switch1phy2: switch1phy2@2 {
+                               reg = <0x2>;
+                       };
+
+                       switch1phy3: switch1phy3@3 {
+                               reg = <0x3>;
+                       };
+
+                       switch1phy4: switch1phy4@4 {
+                               reg = <0x4>;
+                       };
+
+                       switch1phy5: switch1phy5@5 {
+                               reg = <0x5>;
+                       };
+
+                       switch1phy6: switch1phy6@6 {
+                               reg = <0x6>;
+                       };
+
+                       switch1phy7: switch1phy7@7 {
+                               reg = <0x7>;
+                       };
+
+                       switch1phy8: switch1phy8@8 {
+                               reg = <0x8>;
+                       };
+               };
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@1 {
+                               reg = <0x1>;
+                               label = "lan9";
+                               phy-handle = <&switch1phy1>;
+                       };
+
+                       port@2 {
+                               reg = <0x2>;
+                               label = "lan10";
+                               phy-handle = <&switch1phy2>;
+                       };
+
+                       port@3 {
+                               reg = <0x3>;
+                               label = "lan11";
+                               phy-handle = <&switch1phy3>;
+                       };
+
+                       port@4 {
+                               reg = <0x4>;
+                               label = "lan12";
+                               phy-handle = <&switch1phy4>;
+                       };
+
+                       port@5 {
+                               reg = <0x5>;
+                               label = "lan13";
+                               phy-handle = <&switch1phy5>;
+                       };
+
+                       port@6 {
+                               reg = <0x6>;
+                               label = "lan14";
+                               phy-handle = <&switch1phy6>;
+                       };
+
+                       port@7 {
+                               reg = <0x7>;
+                               label = "lan15";
+                               phy-handle = <&switch1phy7>;
+                       };
+
+                       port@8 {
+                               reg = <0x8>;
+                               label = "lan16";
+                               phy-handle = <&switch1phy8>;
+                       };
+
+                       switch1port9: port@9 {
+                               reg = <0x9>;
+                               label = "dsa";
+                               phy-mode = "2500base-x";
+                               managed = "in-band-status";
+                               link = <&switch0port10>;
+                       };
+
+                       switch1port10: port@a {
+                               reg = <0xa>;
+                               label = "dsa";
+                               phy-mode = "2500base-x";
+                               managed = "in-band-status";
+                               link = <&switch2port9>;
+                               status = "disabled";
+                       };
+
+                       port-sfp@a {
+                               reg = <0xa>;
+                               label = "sfp";
+                               sfp = <&sfp>;
+                               phy-mode = "sgmii";
+                               managed = "in-band-status";
+                               status = "disabled";
+                       };
+               };
+       };
+
+       switch1@2 {
+               compatible = "marvell,mv88e6085";
+               reg = <0x2 0>;
+               dsa,member = <0 1>;
+               interrupt-parent = <&moxtet>;
+               interrupts = <MOXTET_IRQ_TOPAZ>;
+               status = "disabled";
+
+               mdio {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       switch1phy1_topaz: switch1phy1@11 {
+                               reg = <0x11>;
+                       };
+
+                       switch1phy2_topaz: switch1phy2@12 {
+                               reg = <0x12>;
+                       };
+
+                       switch1phy3_topaz: switch1phy3@13 {
+                               reg = <0x13>;
+                       };
+
+                       switch1phy4_topaz: switch1phy4@14 {
+                               reg = <0x14>;
+                       };
+               };
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@1 {
+                               reg = <0x1>;
+                               label = "lan9";
+                               phy-handle = <&switch1phy1_topaz>;
+                       };
+
+                       port@2 {
+                               reg = <0x2>;
+                               label = "lan10";
+                               phy-handle = <&switch1phy2_topaz>;
+                       };
+
+                       port@3 {
+                               reg = <0x3>;
+                               label = "lan11";
+                               phy-handle = <&switch1phy3_topaz>;
+                       };
+
+                       port@4 {
+                               reg = <0x4>;
+                               label = "lan12";
+                               phy-handle = <&switch1phy4_topaz>;
+                       };
+
+                       port@5 {
+                               reg = <0x5>;
+                               label = "dsa";
+                               phy-mode = "2500base-x";
+                               managed = "in-band-status";
+                               link = <&switch0port10>;
+                       };
+               };
+       };
+
+       switch2@12 {
+               compatible = "marvell,mv88e6190";
+               reg = <0x12 0>;
+               dsa,member = <0 2>;
+               interrupt-parent = <&moxtet>;
+               interrupts = <MOXTET_IRQ_PERIDOT(2)>;
+               status = "disabled";
+
+               mdio {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       switch2phy1: switch2phy1@1 {
+                               reg = <0x1>;
+                       };
+
+                       switch2phy2: switch2phy2@2 {
+                               reg = <0x2>;
+                       };
+
+                       switch2phy3: switch2phy3@3 {
+                               reg = <0x3>;
+                       };
+
+                       switch2phy4: switch2phy4@4 {
+                               reg = <0x4>;
+                       };
+
+                       switch2phy5: switch2phy5@5 {
+                               reg = <0x5>;
+                       };
+
+                       switch2phy6: switch2phy6@6 {
+                               reg = <0x6>;
+                       };
+
+                       switch2phy7: switch2phy7@7 {
+                               reg = <0x7>;
+                       };
+
+                       switch2phy8: switch2phy8@8 {
+                               reg = <0x8>;
+                       };
+               };
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@1 {
+                               reg = <0x1>;
+                               label = "lan17";
+                               phy-handle = <&switch2phy1>;
+                       };
+
+                       port@2 {
+                               reg = <0x2>;
+                               label = "lan18";
+                               phy-handle = <&switch2phy2>;
+                       };
+
+                       port@3 {
+                               reg = <0x3>;
+                               label = "lan19";
+                               phy-handle = <&switch2phy3>;
+                       };
+
+                       port@4 {
+                               reg = <0x4>;
+                               label = "lan20";
+                               phy-handle = <&switch2phy4>;
+                       };
+
+                       port@5 {
+                               reg = <0x5>;
+                               label = "lan21";
+                               phy-handle = <&switch2phy5>;
+                       };
+
+                       port@6 {
+                               reg = <0x6>;
+                               label = "lan22";
+                               phy-handle = <&switch2phy6>;
+                       };
+
+                       port@7 {
+                               reg = <0x7>;
+                               label = "lan23";
+                               phy-handle = <&switch2phy7>;
+                       };
+
+                       port@8 {
+                               reg = <0x8>;
+                               label = "lan24";
+                               phy-handle = <&switch2phy8>;
+                       };
+
+                       switch2port9: port@9 {
+                               reg = <0x9>;
+                               label = "dsa";
+                               phy-mode = "2500base-x";
+                               managed = "in-band-status";
+                               link = <&switch1port10 &switch0port10>;
+                       };
+
+                       port-sfp@a {
+                               reg = <0xa>;
+                               label = "sfp";
+                               sfp = <&sfp>;
+                               phy-mode = "sgmii";
+                               managed = "in-band-status";
+                               status = "disabled";
+                       };
+               };
+       };
+
+       switch2@2 {
+               compatible = "marvell,mv88e6085";
+               reg = <0x2 0>;
+               dsa,member = <0 2>;
+               interrupt-parent = <&moxtet>;
+               interrupts = <MOXTET_IRQ_TOPAZ>;
+               status = "disabled";
+
+               mdio {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       switch2phy1_topaz: switch2phy1@11 {
+                               reg = <0x11>;
+                       };
+
+                       switch2phy2_topaz: switch2phy2@12 {
+                               reg = <0x12>;
+                       };
+
+                       switch2phy3_topaz: switch2phy3@13 {
+                               reg = <0x13>;
+                       };
+
+                       switch2phy4_topaz: switch2phy4@14 {
+                               reg = <0x14>;
+                       };
+               };
+
+               ports {
+                       #address-cells = <1>;
+                       #size-cells = <0>;
+
+                       port@1 {
+                               reg = <0x1>;
+                               label = "lan17";
+                               phy-handle = <&switch2phy1_topaz>;
+                       };
+
+                       port@2 {
+                               reg = <0x2>;
+                               label = "lan18";
+                               phy-handle = <&switch2phy2_topaz>;
+                       };
+
+                       port@3 {
+                               reg = <0x3>;
+                               label = "lan19";
+                               phy-handle = <&switch2phy3_topaz>;
+                       };
+
+                       port@4 {
+                               reg = <0x4>;
+                               label = "lan20";
+                               phy-handle = <&switch2phy4_topaz>;
+                       };
+
+                       port@5 {
+                               reg = <0x5>;
+                               label = "dsa";
+                               phy-mode = "2500base-x";
+                               managed = "in-band-status";
+                               link = <&switch1port10 &switch0port10>;
+                       };
+               };
+       };
+};