[PATCH v4 07/13] ARM: dts: lan966x: add basic Kontron KSwitch D10 support

From: Michael Walle
Date: Mon May 02 2022 - 18:42:15 EST

Add basic support for the Kontron KSwitch D10 MMT. It comes in two
variants: "6G-2GS" which features 6 Gigabit copper ports and two SFP
cages and "8G" which features 6 Gigbabit copper ports (where two are
2.5G capable).

For now the following is supported and working:
- Kernel console
- SFP cages
- SPI
- SGPIO
- Watchdog

Signed-off-by: Michael Walle <michael@xxxxxxxx>
Reviewed-by: Claudiu Beznea <claudiu.beznea@xxxxxxxxxxxxx>
---
arch/arm/boot/dts/Makefile | 4 +-
...lan966x-kontron-kswitch-d10-mmt-6g-2gs.dts | 78 ++++++++++++++++
.../lan966x-kontron-kswitch-d10-mmt-8g.dts | 13 +++
.../dts/lan966x-kontron-kswitch-d10-mmt.dtsi | 93 +++++++++++++++++++
4 files changed, 187 insertions(+), 1 deletion(-)
create mode 100644 arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-6g-2gs.dts
create mode 100644 arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-8g.dts
create mode 100644 arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt.dtsi

diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index de7ff629d1f8..928bc7eeb73c 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -751,7 +751,9 @@ 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 \
+ lan966x-kontron-kswitch-d10-mmt-8g.dtb
dtb-$(CONFIG_SOC_LS1021A) += \
ls1021a-iot.dtb \
ls1021a-moxa-uc-8410a.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..7b12cbe11c58
--- /dev/null
+++ b/arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-6g-2gs.dts
@@ -0,0 +1,78 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for the Kontron KSwitch D10 MMT 6G-2GS
+ */
+
+/dts-v1/;
+#include "lan966x-kontron-kswitch-d10-mmt.dtsi"
+
+/ {
+ model = "Kontron KSwitch D10 MMT 6G-2GS";
+ compatible = "kontron,kswitch-d10-mmt-6g-2gs", "kontron,s1921",
+ "microchip,lan9668", "microchip,lan966";
+
+ aliases {
+ i2c0 = &i2c4;
+ i2c1 = &i2c1;
+ };
+
+ sfp0: sfp0 {
+ compatible = "sff,sfp";
+ i2c-bus = <&i2c4>;
+ 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 = <&i2c1>;
+ 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>;
+ };
+};
+
+&flx1 {
+ atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
+ status = "okay";
+
+ i2c1: i2c@600 {
+ pinctrl-0 = <&fc1_c_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+ };
+};
+
+&flx4 {
+ atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>;
+ status = "okay";
+
+ i2c4: i2c@600 {
+ pinctrl-0 = <&fc4_b_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+ };
+};
+
+&gpio {
+ fc1_c_pins: fc1-c-i2c-pins {
+ /* SCL, SDA */
+ pins = "GPIO_47", "GPIO_48";
+ function = "fc1_c";
+ };
+
+ fc4_b_pins: fc4-b-i2c-pins {
+ /* SCL, SDA */
+ pins = "GPIO_57", "GPIO_58";
+ function = "fc4_b";
+ };
+};
diff --git a/arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-8g.dts b/arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-8g.dts
new file mode 100644
index 000000000000..4b35f6c46e7f
--- /dev/null
+++ b/arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt-8g.dts
@@ -0,0 +1,13 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Device Tree file for the Kontron KSwitch D10 MMT 8G
+ */
+
+/dts-v1/;
+#include "lan966x-kontron-kswitch-d10-mmt.dtsi"
+
+/ {
+ model = "Kontron KSwitch D10 MMT 8G";
+ compatible = "kontron,kswitch-d10-mmt-8g", "kontron,s1921",
+ "microchip,lan9668", "microchip,lan966";
+};
diff --git a/arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt.dtsi b/arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt.dtsi
new file mode 100644
index 000000000000..4c1ebb4aa5b0
--- /dev/null
+++ b/arch/arm/boot/dts/lan966x-kontron-kswitch-d10-mmt.dtsi
@@ -0,0 +1,93 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Common part of the device tree for the Kontron KSwitch D10 MMT
+ */
+
+/dts-v1/;
+#include "lan966x.dtsi"
+
+/ {
+ aliases {
+ serial0 = &usart0;
+ };
+
+ chosen {
+ stdout-path = "serial0:115200n8";
+ };
+
+ gpio-restart {
+ compatible = "gpio-restart";
+ gpios = <&gpio 56 GPIO_ACTIVE_LOW>;
+ priority = <200>;
+ };
+};
+
+&flx0 {
+ atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
+ status = "okay";
+
+ usart0: serial@200 {
+ pinctrl-0 = <&usart0_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+ };
+};
+
+&flx3 {
+ atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_SPI>;
+ status = "okay";
+
+ spi3: spi@400 {
+ pinctrl-0 = <&fc3_b_pins>;
+ pinctrl-names = "default";
+ status = "okay";
+ cs-gpios = <&gpio 46 GPIO_ACTIVE_LOW>;
+ };
+};
+
+&gpio {
+ fc3_b_pins: fc3-b-pins {
+ /* SCK, MISO, MOSI */
+ pins = "GPIO_51", "GPIO_52", "GPIO_53";
+ function = "fc3_b";
+ };
+
+ sgpio_a_pins: sgpio-a-pins {
+ /* SCK, D0, D1 */
+ pins = "GPIO_32", "GPIO_33", "GPIO_34";
+ function = "sgpio_a";
+ };
+
+ sgpio_b_pins: sgpio-b-pins {
+ /* LD */
+ pins = "GPIO_64";
+ function = "sgpio_b";
+ };
+
+ usart0_pins: usart0-pins {
+ /* RXD, TXD */
+ pins = "GPIO_25", "GPIO_26";
+ function = "fc0_b";
+ };
+};
+
+&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: gpio@0 {
+ ngpios = <128>;
+ };
+
+ sgpio_out: gpio@1 {
+ ngpios = <128>;
+ };
+};
+
+&watchdog {
+ status = "okay";
+};
--
2.30.2