diff options
Diffstat (limited to 'arch/arm64/boot/dts/rockchip/rk3588-jaguar-ethernet-switch.dtso')
| -rw-r--r-- | arch/arm64/boot/dts/rockchip/rk3588-jaguar-ethernet-switch.dtso | 195 |
1 files changed, 195 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/rockchip/rk3588-jaguar-ethernet-switch.dtso b/arch/arm64/boot/dts/rockchip/rk3588-jaguar-ethernet-switch.dtso new file mode 100644 index 000000000000..7d9b1f080b3f --- /dev/null +++ b/arch/arm64/boot/dts/rockchip/rk3588-jaguar-ethernet-switch.dtso @@ -0,0 +1,195 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright (c) 2025 Cherry Embedded Solutions GmbH + * + * Device Tree Overlay for the Ethernet Switch adapter for the Mezzanine + * connector on RK3588 Jaguar + * (manual: https://embedded.cherry.de/jaguar-ethernet-switch-user-manual/) + * + * This adapter has a KSZ9896 Ethernet Switch with 4 1GbE Ethernet connectors, + * two user controllable LEDs, and an M12 12-pin connector which exposes the + * following signals: + * - RS232/RS485 (max 250Kbps/500Kbps, RX pin1, TX pin2) + * - two digital inputs (pin4 routed to GPIO3_C5 on SoC, pin5 to GPIO4_B4) + * - two digital outputs (pin7 routed to GPIO3_D3 on SoC, pin8 to GPIO3_D1) + * - two analog inputs (pin10 to channel1 of ADS1015, pin11 to channel2) + * + * RK3588 Jaguar can be powered entirely through the adapter via the M8 3-pin + * connector (12-24V). + */ + +/dts-v1/; +/plugin/; + +#include <dt-bindings/clock/rockchip,rk3588-cru.h> +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/leds/common.h> +#include <dt-bindings/pinctrl/rockchip.h> + +&{/} { + aliases { + ethernet1 = "/ethernet@fe1c0000"; + }; + + mezzanine-leds { + compatible = "gpio-leds"; + pinctrl-names = "default"; + pinctrl-0 = <&led_usr1_pin &led_usr2_pin>; + + led-1 { + gpios = <&gpio1 RK_PC1 GPIO_ACTIVE_HIGH>; + label = "USR1"; + }; + + led-2 { + gpios = <&gpio3 RK_PC4 GPIO_ACTIVE_HIGH>; + label = "USR2"; + }; + }; +}; + +&gmac1 { + clock_in_out = "output"; + phy-mode = "rgmii-id"; + pinctrl-names = "default"; + pinctrl-0 = <&gmac1_rx_bus2 + &gmac1_tx_bus2 + &gmac1_rgmii_clk + &gmac1_rgmii_bus + ð1_pins>; + rx_delay = <0x0>; + tx_delay = <0x0>; + status = "okay"; + + fixed-link { + speed = <1000>; + full-duplex; + }; +}; + +&i2c1 { + #address-cells = <1>; + /* + * ADS1015 can handle high-speed (HS) mode (up to 3.4MHz) on I2C bus, + * but SoC can handle only up to 400kHz. + */ + clock-frequency = <400000>; + #size-cells = <0>; + status = "okay"; + + adc@48 { + compatible = "ti,ads1015"; + reg = <0x48>; + #address-cells = <1>; + interrupt-parent = <&gpio3>; + interrupts = <RK_PC7 IRQ_TYPE_EDGE_FALLING>; + pinctrl-0 = <&adc_alert>; + pinctrl-names = "default"; + #io-channel-cells = <1>; + #size-cells = <0>; + + channel@1 { + reg = <5>; /* Single-ended between AIN1 and GND */ + ti,datarate = <0>; + ti,gain = <5>; + }; + + channel@2 { + reg = <6>; /* Single-ended between AIN2 and GND */ + ti,datarate = <0>; + ti,gain = <5>; + }; + }; + + switch@5f { + compatible = "microchip,ksz9896"; + reg = <0x5f>; + interrupt-parent = <&gpio3>; + interrupts = <RK_PB7 IRQ_TYPE_EDGE_FALLING>; /* ETH_INTRP_N */ + pinctrl-0 = <ð_reset_n ð_intrp_n>; + pinctrl-names = "default"; + reset-gpios = <&gpio3 RK_PB6 GPIO_ACTIVE_LOW>; /* ETH_RESET */ + microchip,synclko-disable; /* CLKO_25_125 only routed to TP1 */ + + ethernet-ports { + #address-cells = <1>; + #size-cells = <0>; + + lan1: port@0 { + reg = <0>; + label = "ETH1"; + }; + + lan2: port@1 { + reg = <1>; + label = "ETH2"; + }; + + lan3: port@2 { + reg = <2>; + label = "ETH3"; + }; + + lan4: port@3 { + reg = <3>; + label = "ETH4"; + }; + + port@5 { + reg = <5>; + ethernet = <&gmac1>; + label = "CPU"; + phy-mode = "rgmii-id"; + rx-internal-delay-ps = <2000>; + tx-internal-delay-ps = <2000>; + + fixed-link { + speed = <1000>; + full-duplex; + }; + }; + }; + }; +}; + +&pinctrl { + adc { + adc_alert: adc-alert-irq { + rockchip,pins = + <3 RK_PC7 RK_FUNC_GPIO &pcfg_pull_up>; + }; + }; + + ethernet { + eth_intrp_n: eth-intrp-n { + rockchip,pins = + <3 RK_PB7 RK_FUNC_GPIO &pcfg_pull_none>; + }; + + eth_reset_n: eth-reset-n { + rockchip,pins = + <3 RK_PB6 RK_FUNC_GPIO &pcfg_pull_none>; + }; + }; + + leds { + led_usr1_pin: led-usr1-pin { + rockchip,pins = + <1 RK_PC1 RK_FUNC_GPIO &pcfg_pull_down>; + }; + + led_usr2_pin: led-usr2-pin { + rockchip,pins = + <3 RK_PC4 RK_FUNC_GPIO &pcfg_pull_down>; + }; + }; +}; + +&uart9 { + /* GPIO3_D0/EN_RS485_MODE for switching between RS232 and RS485 */ + pinctrl-0 = <&uart9m2_xfer &uart9m2_rtsn>; + pinctrl-names = "default"; + linux,rs485-enabled-at-boot-time; + status = "okay"; +}; |