[PATCH v2 17/19] arm64: dts: microchip: add LAN969x support

Robert Marko
2025-12-15T16:39:09Z

Add support for Microchip LAN969x switch SoC series by adding the SoC DTSI.

Signed-off-by: Robert Marko <robert.marko@sartura.hr>
---
Changes in v2:
* Rename to lan9691
* Split SoC DTSI and evaluation board commits
* Use SoC specific compatibles for devices
* Alphanumerically sort remaining nodes
* Apply DTS coding style

arch/arm64/boot/dts/microchip/lan9691.dtsi | 487 +++++++++++++++++++++
1 file changed, 487 insertions(+)
create mode 100644 arch/arm64/boot/dts/microchip/lan9691.dtsi

diff --git a/arch/arm64/boot/dts/microchip/lan9691.dtsi b/arch/arm64/boot/dts/microchip/lan9691.dtsi
new file mode 100644
index 000000000000..afe8c59ee79d
--- /dev/null
+++ b/arch/arm64/boot/dts/microchip/lan9691.dtsi
@@ -0,0 +1,487 @@
+// SPDX-License-Identifier: (GPL-2.0-or-later OR MIT)
+/*
+ * Copyright (c) 2025 Microchip Technology Inc. and its subsidiaries.
+ */
+
+#include <dt-bindings/clock/microchip,lan9691.h>
+#include <dt-bindings/dma/at91.h>
+#include <dt-bindings/interrupt-controller/arm-gic.h>
+#include <dt-bindings/mfd/at91-usart.h>
+#include <dt-bindings/mfd/atmel-flexcom.h>
+
+/ {
+ #address-cells = <1>;
+ #size-cells = <1>;
+
+ model = "Microchip LAN969x";
+ compatible = "microchip,lan9691";
+ interrupt-parent = <&gic>;
+
+ clocks {
+ fx100_clk: fx100-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <320000000>;
+ };
+
+ cpu_clk: cpu-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <1000000000>;
+ };
+
+ ddr_clk: ddr-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <600000000>;
+ };
+
+ fabric_clk: fabric-clk {
+ compatible = "fixed-clock";
+ #clock-cells = <0>;
+ clock-frequency = <250000000>;
+ };
+ };
+
+ cpus {
+ #address-cells = <2>;
+ #size-cells = <0>;
+
+ cpu0: cpu@0 {
+ compatible = "arm,cortex-a53";
+ device_type = "cpu";
+ reg = <0x0 0x0>;
+ next-level-cache = <&l2_0>;
+ };
+
+ l2_0: l2-cache {
+ compatible = "cache";
+ cache-level = <2>;
+ cache-unified;
+ };
+ };
+
+ psci {
+ compatible = "arm,psci-1.0";
+ method = "smc";
+ };
+
+ pmu {
+ compatible = "arm,cortex-a53-pmu";
+ interrupts = <GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH>;
+ };
+
+ timer {
+ compatible = "arm,armv8-timer";
+ interrupts = <GIC_PPI 13 IRQ_TYPE_LEVEL_LOW>, /* Secure Phys IRQ */
+ <GIC_PPI 14 IRQ_TYPE_LEVEL_LOW>, /* Non-secure Phys IRQ */
+ <GIC_PPI 11 IRQ_TYPE_LEVEL_LOW>, /* Virt IRQ */
+ <GIC_PPI 10 IRQ_TYPE_LEVEL_LOW>; /* Hyp IRQ */
+ };
+
+ axi: axi {
+ compatible = "simple-bus";
+ #address-cells = <1>;
+ #size-cells = <1>;
+ ranges;
+
+ usb: usb@300000 {
+ compatible = "microchip,lan9691-dwc3", "snps,dwc3";
+ reg = <0x300000 0x80000>;
+ interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&clks GCK_GATE_USB_DRD>,
+ <&clks GCK_ID_USB_REFCLK>;
+ clock-names = "bus_early", "ref";
+ assigned-clocks = <&clks GCK_ID_USB_REFCLK>;
+ assigned-clock-rates = <60000000>;
+ maximum-speed = "high-speed";
+ dr_mode = "host";
+ status = "disabled";
+ };
+
+ flx0: flexcom@e0040000 {
+ compatible = "microchip,lan9691-flexcom", "atmel,sama5d2-flexcom";
+ reg = <0xe0040000 0x100>;
+ ranges = <0x0 0xe0040000 0x800>;
+ clocks = <&clks GCK_ID_FLEXCOM0>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+
+ usart0: serial@200 {
+ compatible = "microchip,lan9691-usart", "atmel,at91sam9260-usart";
+ reg = <0x200 0x200>;
+ interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+ <&dma AT91_XDMAC_DT_PERID(2)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ clock-names = "usart";
+ atmel,fifo-size = <32>;
+ atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
+ status = "disabled";
+ };
+
+ spi0: spi@400 {
+ compatible = "microchip,lan9691-spi", "atmel,at91rm9200-spi";
+ reg = <0x400 0x200>;
+ interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+ <&dma AT91_XDMAC_DT_PERID(2)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ clock-names = "spi_clk";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ atmel,fifo-size = <32>;
+ status = "disabled";
+ };
+
+ i2c0: i2c@600 {
+ compatible = "microchip,lan9691-i2c", "microchip,sam9x60-i2c";
+ reg = <0x600 0x200>;
+ interrupts = <GIC_SPI 46 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+ <&dma AT91_XDMAC_DT_PERID(2)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+ };
+
+ flx1: flexcom@e0044000 {
+ compatible = "microchip,lan9691-flexcom", "atmel,sama5d2-flexcom";
+ reg = <0xe0044000 0x100>;
+ ranges = <0x0 0xe0044000 0x800>;
+ clocks = <&clks GCK_ID_FLEXCOM1>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+
+ usart1: serial@200 {
+ compatible = "microchip,lan9691-usart", "atmel,at91sam9260-usart";
+ reg = <0x200 0x200>;
+ interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+ <&dma AT91_XDMAC_DT_PERID(2)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ clock-names = "usart";
+ atmel,fifo-size = <32>;
+ atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
+ status = "disabled";
+ };
+
+ spi1: spi@400 {
+ compatible = "microchip,lan9691-spi", "atmel,at91rm9200-spi";
+ reg = <0x400 0x200>;
+ interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+ <&dma AT91_XDMAC_DT_PERID(2)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ clock-names = "spi_clk";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ atmel,fifo-size = <32>;
+ status = "disabled";
+ };
+
+ i2c1: i2c@600 {
+ compatible = "microchip,lan9691-i2c", "microchip,sam9x60-i2c";
+ reg = <0x600 0x200>;
+ interrupts = <GIC_SPI 47 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(3)>,
+ <&dma AT91_XDMAC_DT_PERID(2)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+ };
+
+ trng: rng@e0048000 {
+ compatible = "microchip,lan9691-trng", "atmel,at91sam9g45-trng";
+ reg = <0xe0048000 0x100>;
+ clocks = <&fabric_clk>;
+ status = "disabled";
+ };
+
+ aes: crypto@e004c000 {
+ compatible = "microchip,lan9691-aes", "atmel,at91sam9g46-aes";
+ reg = <0xe004c000 0x100>;
+ interrupts = <GIC_SPI 51 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(12)>,
+ <&dma AT91_XDMAC_DT_PERID(13)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ clock-names = "aes_clk";
+ status = "disabled";
+ };
+
+ flx2: flexcom@e0060000 {
+ compatible = "microchip,lan9691-flexcom", "atmel,sama5d2-flexcom";
+ reg = <0xe0060000 0x100>;
+ ranges = <0x0 0xe0060000 0x800>;
+ clocks = <&clks GCK_ID_FLEXCOM2>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+
+ usart2: serial@200 {
+ compatible = "microchip,lan9691-usart", "atmel,at91sam9260-usart";
+ reg = <0x200 0x200>;
+ interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(7)>,
+ <&dma AT91_XDMAC_DT_PERID(6)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ clock-names = "usart";
+ atmel,fifo-size = <32>;
+ atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
+ status = "disabled";
+ };
+
+ spi2: spi@400 {
+ compatible = "microchip,lan9691-spi", "atmel,at91rm9200-spi";
+ reg = <0x400 0x200>;
+ interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(7)>,
+ <&dma AT91_XDMAC_DT_PERID(6)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ clock-names = "spi_clk";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ atmel,fifo-size = <32>;
+ status = "disabled";
+ };
+
+ i2c2: i2c@600 {
+ compatible = "microchip,lan9691-i2c", "microchip,sam9x60-i2c";
+ reg = <0x600 0x200>;
+ interrupts = <GIC_SPI 48 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(7)>,
+ <&dma AT91_XDMAC_DT_PERID(6)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+ };
+
+ flx3: flexcom@e0064000 {
+ compatible = "microchip,lan9691-flexcom", "atmel,sama5d2-flexcom";
+ reg = <0xe0064000 0x100>;
+ ranges = <0x0 0xe0064000 0x800>;
+ clocks = <&clks GCK_ID_FLEXCOM3>;
+ #address-cells = <1>;
+ #size-cells = <1>;
+ status = "disabled";
+
+ usart3: serial@200 {
+ compatible = "microchip,lan9691-usart", "atmel,at91sam9260-usart";
+ reg = <0x200 0x200>;
+ interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(9)>,
+ <&dma AT91_XDMAC_DT_PERID(8)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ clock-names = "usart";
+ atmel,fifo-size = <32>;
+ atmel,usart-mode = <AT91_USART_MODE_SERIAL>;
+ status = "disabled";
+ };
+
+ spi3: spi@400 {
+ compatible = "microchip,lan9691-spi", "atmel,at91rm9200-spi";
+ reg = <0x400 0x200>;
+ interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(9)>,
+ <&dma AT91_XDMAC_DT_PERID(8)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ clock-names = "spi_clk";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ atmel,fifo-size = <32>;
+ status = "disabled";
+ };
+
+ i2c3: i2c@600 {
+ compatible = "microchip,lan9691-i2c", "microchip,sam9x60-i2c";
+ reg = <0x600 0x200>;
+ interrupts = <GIC_SPI 49 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(9)>,
+ <&dma AT91_XDMAC_DT_PERID(8)>;
+ dma-names = "tx", "rx";
+ clocks = <&fabric_clk>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+ };
+ };
+
+ dma: dma-controller@e0068000 {
+ compatible = "microchip,lan9691-dma", "microchip,sama7g5-dma";
+ reg = <0xe0068000 0x1000>;
+ interrupts = <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>;
+ dma-channels = <16>;
+ #dma-cells = <1>;
+ clocks = <&fabric_clk>;
+ clock-names = "dma_clk";
+ };
+
+ sha: crypto@e006c000 {
+ compatible = "microchip,lan9691-sha", "atmel,at91sam9g46-sha";
+ reg = <0xe006c000 0xec>;
+ interrupts = <GIC_SPI 55 IRQ_TYPE_LEVEL_HIGH>;
+ dmas = <&dma AT91_XDMAC_DT_PERID(14)>;
+ dma-names = "tx";
+ clocks = <&fabric_clk>;
+ clock-names = "sha_clk";
+ status = "disabled";
+ };
+
+ timer: timer@e008c000 {
+ compatible = "snps,dw-apb-timer";
+ reg = <0xe008c000 0x400>;
+ clocks = <&fabric_clk>;
+ clock-names = "timer";
+ interrupts = <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>;
+ status = "disabled";
+ };
+
+ watchdog: watchdog@e0090000 {
+ compatible = "snps,dw-wdt";
+ reg = <0xe0090000 0x1000>;
+ interrupts = <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>;
+ clocks = <&fabric_clk>;
+ };
+
+ cpu_ctrl: syscon@e00c0000 {
+ compatible = "microchip,lan966x-cpu-syscon", "syscon";
+ reg = <0xe00c0000 0x350>;
+ };
+
+ switch: switch@e00c0000 {
+ compatible = "microchip,lan9691-switch";
+ reg = <0xe00c0000 0x0010000>,
+ <0xe2010000 0x1410000>;
+ reg-names = "cpu", "devices";
+ interrupt-names = "xtr", "fdma", "ptp";
+ interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH>,
+ <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ resets = <&reset 0>;
+ reset-names = "switch";
+ status = "disabled";
+ };
+
+ clks: clock-controller@e00c00b4 {
+ compatible = "microchip,lan9691-gck";
+ reg = <0xe00c00b4 0x30>, <0xe00c0308 0x4>;
+ #clock-cells = <1>;
+ clocks = <&cpu_clk>, <&ddr_clk>, <&fx100_clk>;
+ clock-names = "cpu", "ddr", "sys";
+ };
+
+ reset: reset-controller@e201000c {
+ compatible = "microchip,lan9691-switch-reset",
+ "microchip,lan966x-switch-reset";
+ reg = <0xe201000c 0x4>;
+ reg-names = "gcb";
+ #reset-cells = <1>;
+ cpu-syscon = <&cpu_ctrl>;
+ };
+
+ gpio: pinctrl@e20100d4 {
+ compatible = "microchip,lan9691-pinctrl";
+ reg = <0xe20100d4 0xd4>,
+ <0xe2010370 0xa8>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-ranges = <&gpio 0 0 66>;
+ interrupt-controller;
+ interrupts = <GIC_SPI 15 IRQ_TYPE_LEVEL_HIGH>;
+ #interrupt-cells = <2>;
+ };
+
+ mdio0: mdio@e20101a8 {
+ compatible = "microchip,lan9691-miim", "mscc,ocelot-miim";
+ reg = <0xe20101a8 0x24>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&fx100_clk>;
+ status = "disabled";
+ };
+
+ mdio1: mdio@e20101cc {
+ compatible = "microchip,lan9691-miim", "mscc,ocelot-miim";
+ reg = <0xe20101cc 0x24>;
+ #address-cells = <1>;
+ #size-cells = <0>;
+ clocks = <&fx100_clk>;
+ status = "disabled";
+ };
+
+ sgpio: gpio@e2010230 {
+ compatible = "microchip,lan9691-sgpio", "microchip,sparx5-sgpio";
+ reg = <0xe2010230 0x118>;
+ clocks = <&fx100_clk>;
+ resets = <&reset 0>;
+ reset-names = "switch";
+ #address-cells = <1>;
+ #size-cells = <0>;
+ status = "disabled";
+
+ sgpio_in: gpio@0 {
+ compatible = "microchip,lan9691-sgpio-bank",
+ "microchip,sparx5-sgpio-bank";
+ reg = <0>;
+ gpio-controller;
+ #gpio-cells = <3>;
+ interrupts = <GIC_SPI 16 IRQ_TYPE_LEVEL_HIGH>;
+ interrupt-controller;
+ #interrupt-cells = <3>;
+ };
+
+ sgpio_out: gpio@1 {
+ compatible = "microchip,lan9691-sgpio-bank",
+ "microchip,sparx5-sgpio-bank";
+ reg = <1>;
+ gpio-controller;
+ #gpio-cells = <3>;
+ };
+ };
+
+ tmon: hwmon@e2020100 {
+ compatible = "microchip,lan9691-temp", "microchip,sparx5-temp";
+ reg = <0xe2020100 0xc>;
+ clocks = <&fx100_clk>;
+ #thermal-sensor-cells = <0>;
+ };
+
+ serdes: serdes@e3410000 {
+ compatible = "microchip,lan9691-serdes";
+ reg = <0xe3410000 0x150000>;
+ #phy-cells = <1>;
+ clocks = <&fabric_clk>;
+ };
+
+ gic: interrupt-controller@e8c11000 {
+ compatible = "arm,gic-400";
+ reg = <0xe8c11000 0x1000>, /* Distributor GICD_ */
+ <0xe8c12000 0x2000>, /* CPU interface GICC_ */
+ <0xe8c14000 0x2000>, /* Virt interface control */
+ <0xe8c16000 0x2000>; /* Virt CPU interface */
+ #interrupt-cells = <3>;
+ interrupt-controller;
+ interrupts = <GIC_PPI 9 IRQ_TYPE_LEVEL_HIGH>;
+ };
+ };
+};
--
2.52.0