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Message-Id: <20220304153548.3364480-8-michael@walle.cc>
Date: Fri, 4 Mar 2022 16:35:48 +0100
From: Michael Walle <michael@...le.cc>
To: Kavyasree Kotagiri <kavyasree.kotagiri@...rochip.com>,
Nicolas Ferre <nicolas.ferre@...rochip.com>
Cc: Arnd Bergmann <arnd@...db.de>, Olof Johansson <olof@...om.net>,
soc@...nel.org, linux-arm-kernel@...ts.infradead.org,
devicetree@...r.kernel.org, linux-kernel@...r.kernel.org,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski@...onical.com>,
Alexandre Belloni <alexandre.belloni@...tlin.com>,
Claudiu Beznea <claudiu.beznea@...rochip.com>,
Michael Walle <michael@...le.cc>
Subject: [PATCH v2 7/7] ARM: dts: lan966x: add basic Kontron KSwitch D10 support
Add basic support for the Kontron KSwitch D10 MMT 6G-2GS which
features 6 Gigabit copper ports and two SFP cages. For now the
following is working:
- Kernel console
- SFP cages I2C bus and mux
- SPI
- SGPIO
- Watchdog
Signed-off-by: Michael Walle <michael@...le.cc>
---
arch/arm/boot/dts/Makefile | 3 +-
...lan966x-kontron-kswitch-d10-mmt-6g-2gs.dts | 159 ++++++++++++++++++
2 files changed, 161 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-6g-2gs.dts
diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index 085c43649d44..86dd0f9804ee 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -739,7 +739,8 @@ dtb-$(CONFIG_SOC_IMX7ULP) += \
imx7ulp-com.dtb \
imx7ulp-evk.dtb
dtb-$(CONFIG_SOC_LAN966) += \
- lan966x-pcb8291.dtb
+ lan966x-pcb8291.dtb \
+ lan966x-kontron-kswitch-d10-mmt-6g-2gs.dtb
dtb-$(CONFIG_SOC_LS1021A) += \
ls1021a-moxa-uc-8410a.dtb \
ls1021a-qds.dtb \
diff --git a/arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-6g-2gs.dts b/arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-6g-2gs.dts
new file mode 100644
index 000000000000..958678dec7ad
--- /dev/null
+++ b/arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-6g-2gs.dts
@@ -0,0 +1,159 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for the Kontron KSwitch D10 MMT 6G-2GS
+ */
+
+/dts-v1/;
+#include "lan966x.dtsi"
+
+/ {
+ model = "Kontron KSwitch D10 MMT 6G-2GS";
+ compatible = "kontron,kswitch-d10-mmt-6g-2gs", "kontron,s1921",
+ "microchip,lan9668", "microchip,lan966";
+
+ aliases {
+ serial0 = &usart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ gpio-restart {
+ compatible = "gpio-restart";
+ gpios = <&gpio 56 GPIO_ACTIVE_LOW>;
+ priority = <200>;
+ };
+
+ i2cmux {
+ compatible = "i2c-mux-gpio";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ mux-gpios = <&sgpio_out 3 2 GPIO_ACTIVE_HIGH>,
+ <&sgpio_out 3 3 GPIO_ACTIVE_HIGH>;
+ i2c-parent = <&i2c4>;
+
+ i2c4_0: i2c@1 {
+ reg = <1>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+
+ i2c4_1: i2c@2 {
+ reg = <2>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ };
+ };
+
+ sfp0: sfp0 {
+ compatible = "sff,sfp";
+ i2c-bus = <&i2c4_0>;
+ los-gpios = <&sgpio_in 1 0 GPIO_ACTIVE_HIGH>;
+ mod-def0-gpios = <&sgpio_in 1 1 GPIO_ACTIVE_LOW>;
+ maximum-power-milliwatt = <2500>;
+ tx-disable-gpios = <&sgpio_out 3 0 GPIO_ACTIVE_LOW>;
+ tx-fault-gpios = <&sgpio_in 0 2 GPIO_ACTIVE_HIGH>;
+ rate-select0-gpios = <&sgpio_out 2 0 GPIO_ACTIVE_HIGH>;
+ rate-select1-gpios = <&sgpio_out 2 1 GPIO_ACTIVE_HIGH>;
+ };
+
+ sfp1: sfp1 {
+ compatible = "sff,sfp";
+ i2c-bus = <&i2c4_1>;
+ los-gpios = <&sgpio_in 1 2 GPIO_ACTIVE_HIGH>;
+ mod-def0-gpios = <&sgpio_in 1 3 GPIO_ACTIVE_LOW>;
+ maximum-power-milliwatt = <2500>;
+ tx-disable-gpios = <&sgpio_out 3 1 GPIO_ACTIVE_LOW>;
+ tx-fault-gpios = <&sgpio_in 0 3 GPIO_ACTIVE_HIGH>;
+ rate-select0-gpios = <&sgpio_out 2 2 GPIO_ACTIVE_HIGH>;
+ rate-select1-gpios = <&sgpio_out 2 3 GPIO_ACTIVE_HIGH>;
+ };
+};
+
+&flx0 {
+ atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
+ status = "okay";
+};
+
+&flx3 {
+ atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_SPI>;
+ status = "okay";
+};
+
+&flx4 {
+ atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
+ status = "okay";
+};
+
+&gpio {
+ usart0_pins: usart0-pins {
+ /* RXD, TXD */
+ pins = "GPIO_25", "GPIO_26";
+ function = "fc0_b";
+ };
+
+ sgpio_a_pins: sgpio-a-pins {
+ /* SCK, D0, D1, LD */
+ pins = "GPIO_32", "GPIO_33", "GPIO_34";
+ function = "sgpio_a";
+ };
+
+ sgpio_b_pins: sgpio-b-pins {
+ /* SCK, D0, D1, LD */
+ pins = "GPIO_64";
+ function = "sgpio_b";
+ };
+
+ fc3_b_pins: fc3-b-spi-pins {
+ /* SCK, MISO, MOSI */
+ pins = "GPIO_51", "GPIO_52", "GPIO_53";
+ function = "fc3_b";
+ };
+
+ fc4_b_pins: fc4-b-i2c-pins {
+ /* RXD, TXD */
+ pins = "GPIO_57", "GPIO_58";
+ function = "fc4_b";
+ };
+};
+
+&i2c4 {
+ pinctrl-0 = <&fc4_b_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&usart0 {
+ pinctrl-0 = <&usart0_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+};
+
+&sgpio {
+ pinctrl-0 = <&sgpio_a_pins>, <&sgpio_b_pins>;
+ pinctrl-names = "default";
+ bus-frequency = <8000000>;
+ /* arbitrary range because all GPIOs are in software mode */
+ microchip,sgpio-port-ranges = <0 11>;
+ status = "okay";
+};
+
+&sgpio_in {
+ ngpios = <128>;
+};
+
+&sgpio_out {
+ ngpios = <128>;
+};
+
+&spi3 {
+ pinctrl-0 = <&fc3_b_pins>;
+ pinctrl-names = "default";
+ cs-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
+ status = "okay";
+};
+
+&watchdog {
+ status = "okay";
+};
--
2.30.2
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