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The SoM features: - 2x 1Gbps Ethernet with PHY - eMMC - 1/2GB DDR - WiFi + Bluetooth - SDHI Mux switching between eMMC and Carrier Board The HummingBoard IIoT features: - 3x USB-2.0 Type A connector - 2x 1Gbps RJ45 Ethernet - USB Type-C Console Port - microSD connector - RTC with backup battery - RGB Status LED - 1x M.2 B-Key connector with USB-2.0 + SIM card holder - 1x DSI Display Connector - GPIO header - 2x RS232/RS485 ports (configurable) - 2x CAN Descriptions for eMMC, microSD and RS485 are provided as overlays due to their dependency on configurable mux states. [1] https://www.solid-run.com/embedded-industrial-iot/renesas-rz-family/rz-g2l-som/ [2] https://www.solid-run.com/embedded-industrial-iot/renesas-rz-family/hummingboard-rz-series-sbcs/hummingboard-rz-g2l-iot-sbc/ Reviewed-by: Geert Uytterhoeven Signed-off-by: Josua Mayer --- arch/arm64/boot/dts/renesas/Makefile | 13 + .../dts/renesas/r9a07g044l2-hummingboard-iiot.dts | 16 + .../renesas/rzg2l-hummingboard-iiot-common.dtsi | 560 +++++++++++++++++++++ .../renesas/rzg2l-hummingboard-iiot-microsd.dtso | 26 + .../renesas/rzg2l-hummingboard-iiot-rs485-a.dtso | 17 + .../renesas/rzg2l-hummingboard-iiot-rs485-b.dtso | 17 + .../boot/dts/renesas/rzg2l-hummingboard-iiot.dtsi | 49 ++ arch/arm64/boot/dts/renesas/rzg2l-sr-som-emmc.dtso | 44 ++ arch/arm64/boot/dts/renesas/rzg2l-sr-som.dtsi | 473 +++++++++++++++++ 9 files changed, 1215 insertions(+) diff --git a/arch/arm64/boot/dts/renesas/Makefile b/arch/arm64/boot/dts/renesas/Makefile index 8bf155badd111..e2af196e18bf6 100644 --- a/arch/arm64/boot/dts/renesas/Makefile +++ b/arch/arm64/boot/dts/renesas/Makefile @@ -170,6 +170,19 @@ dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044c2-smarc-cru-csi-ov5645.dtbo r9a07g044c2-smarc-cru-csi-ov5645-dtbs := r9a07g044c2-smarc.dtb r9a07g044c2-smarc-cru-csi-ov5645.dtbo dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044c2-smarc-cru-csi-ov5645.dtb +dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-hummingboard-iiot.dtb +dtb-$(CONFIG_ARCH_R9A07G044) += rzg2l-sr-som-emmc.dtbo +r9a07g044l2-hummingboard-iiot-emmc-dtbs := r9a07g044l2-hummingboard-iiot.dtb rzg2l-sr-som-emmc.dtbo +dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-hummingboard-iiot-emmc.dtb +dtb-$(CONFIG_ARCH_R9A07G044) += rzg2l-hummingboard-iiot-microsd.dtbo +r9a07g044l2-hummingboard-iiot-microsd-dtbs := r9a07g044l2-hummingboard-iiot.dtb rzg2l-hummingboard-iiot-microsd.dtbo +dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-hummingboard-iiot-microsd.dtb +dtb-$(CONFIG_ARCH_R9A07G044) += rzg2l-hummingboard-iiot-rs485-a.dtbo +r9a07g044l2-hummingboard-iiot-rs485-a-dtbs := r9a07g044l2-hummingboard-iiot.dtb rzg2l-hummingboard-iiot-rs485-a.dtbo +dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-hummingboard-iiot-rs485-a.dtb +dtb-$(CONFIG_ARCH_R9A07G044) += rzg2l-hummingboard-iiot-rs485-b.dtbo +r9a07g044l2-hummingboard-iiot-rs485-b-dtbs := r9a07g044l2-hummingboard-iiot.dtb rzg2l-hummingboard-iiot-rs485-b.dtbo +dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-hummingboard-iiot-rs485-b.dtb dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-remi-pi.dtb dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-smarc.dtb dtb-$(CONFIG_ARCH_R9A07G044) += r9a07g044l2-smarc-cru-csi-ov5645.dtbo diff --git a/arch/arm64/boot/dts/renesas/r9a07g044l2-hummingboard-iiot.dts b/arch/arm64/boot/dts/renesas/r9a07g044l2-hummingboard-iiot.dts new file mode 100644 index 0000000000000..eba4f423c8f05 --- /dev/null +++ b/arch/arm64/boot/dts/renesas/r9a07g044l2-hummingboard-iiot.dts @@ -0,0 +1,16 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Copyright 2025 Josua Mayer + */ + +/dts-v1/; + +#include "r9a07g044l2.dtsi" +#include "rzg2l-sr-som.dtsi" +#include "rzg2l-hummingboard-iiot.dtsi" + +/ { + compatible = "solidrun,rzg2l-hummingboard-iiot", "solidrun,rzg2l-sr-som", + "renesas,r9a07g044l2", "renesas,r9a07g044"; + model = "SolidRun RZ/G2L HummingBoard IIoT"; +}; diff --git a/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-common.dtsi b/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-common.dtsi new file mode 100644 index 0000000000000..9f46c73ba3b5a --- /dev/null +++ b/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-common.dtsi @@ -0,0 +1,560 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Copyright 2025 Josua Mayer + */ + +#include +#include +/ { + /* power for M.2 B-Key connector (J6) */ + regulator-m2-b { + compatible = "regulator-fixed"; + regulator-name = "m2-b"; + gpios = <&tca6416_u20 5 GPIO_ACTIVE_HIGH>; + regulator-always-on; + regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <3300000>; + enable-active-high; + }; + + /* power for M.2 M-Key connector (J4) */ + regulator-m2-m { + compatible = "regulator-fixed"; + regulator-name = "m2-m"; + gpios = <&tca6416_u20 6 GPIO_ACTIVE_HIGH>; + regulator-always-on; + regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <3300000>; + enable-active-high; + }; + + /* power for USB-A J27 behind USB Hub Port 3 */ + regulator-vbus-2 { + compatible = "regulator-fixed"; + regulator-name = "vbus2"; + regulator-always-on; + regulator-max-microvolt = <5000000>; + regulator-min-microvolt = <5000000>; + gpios = <&tca6416_u20 12 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + + /* power for USB-A J27 behind USB Hub Port 4 */ + regulator-vbus-3 { + compatible = "regulator-fixed"; + regulator-name = "vbus3"; + regulator-always-on; + regulator-max-microvolt = <5000000>; + regulator-min-microvolt = <5000000>; + gpios = <&tca6416_u20 13 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + + aliases { + i2c3 = &i2c_exp; + i2c4 = &i2c_csi; + i2c5 = &i2c_dsi; + i2c6 = &i2c_lvds; + rtc0 = &carrier_rtc; + rtc1 = &pmic; + serial3 = &scif3; + }; + + gpio-keys { + compatible = "gpio-keys"; + + wakeup-event { + interrupts-extended = <&tca6416_u21 11 IRQ_TYPE_EDGE_FALLING>; + label = "m2-m-wakeup"; + wakeup-source; + linux,code = ; + }; + }; + + can_mux: mux-controller-1 { + compatible = "gpio-mux"; + /* default J9-55/57/59/61 to on-board transceivers */ + idle-state = <0>; + #mux-control-cells = <0>; + /* + * Mux routes CAN bus signals between SoM connector pins, + * expansion connector (J22) and on-board transceivers using + * two GPIO: + * - IO3: 0 = on-board transceivers, 1 = expansion connector + * - IO4: 0 = J9-55/57/59/61, 1 = J7-12/16 & J9-54/56 + */ + mux-gpios = <&tca6416_u20 3 GPIO_ACTIVE_HIGH>, + <&tca6416_u20 4 GPIO_ACTIVE_HIGH>; + }; + + spi_mux: mux-controller-2 { + compatible = "gpio-mux"; + /* default on-board */ + idle-state = <0>; + /* + * Mux switches spi bus between on-board tpm + * and expansion connector (J22). + */ + mux-gpios = <&tca6416_u21 0 GPIO_ACTIVE_HIGH>; + #mux-control-cells = <0>; + }; + + scif1_scif3_b2b_mux: mux-controller-3 { + compatible = "gpio-mux"; + /* default on-board */ + idle-state = <0>; + #mux-control-cells = <0>; + /* + * Mux switches both scif1 and scif3 tx/rx between expansion + * connector (J22) and on-board rs232/rs485 transceivers + * using one GPIO: 0 = on-board, 1 = connector. + */ + mux-gpios = <&tca6416_u20 0 GPIO_ACTIVE_HIGH>; + }; + + scif1_rs_232_485_mux: mux-controller-4 { + compatible = "gpio-mux"; + /* default rs232 */ + idle-state = <0>; + #mux-control-cells = <0>; + /* + * Mux switches scif1 tx/rx between rs232 and rs485 + * transceivers. using one GPIO: 0 = rs232, 1 = rs485. + */ + mux-gpios = <&tca6416_u20 1 GPIO_ACTIVE_HIGH>; + }; + + scif3_rs_232_485_mux: mux-controller-5 { + compatible = "gpio-mux"; + /* default rs232 */ + idle-state = <0>; + #mux-control-cells = <0>; + /* + * Mux switches scif3 tx/rx between rs232 and rs485 + * transceivers. using one GPIO: 0 = rs232, 1 = rs485. + */ + mux-gpios = <&tca6416_u20 2 GPIO_ACTIVE_HIGH>; + }; + + v_1_2: regulator-1v2 { + compatible = "regulator-fixed"; + regulator-name = "1v2"; + regulator-max-microvolt = <1200000>; + regulator-min-microvolt = <1200000>; + }; + + v_3_3: regulator-3v3 { + compatible = "regulator-fixed"; + regulator-name = "3v3"; + regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <3300000>; + }; + + reg_dsi_panel: regulator-dsi-panel { + compatible = "regulator-fixed"; + regulator-name = "dsi-panel"; + gpios = <&tca6416_u20 15 GPIO_ACTIVE_HIGH>; + regulator-max-microvolt = <11200000>; + regulator-min-microvolt = <11200000>; + enable-active-high; + }; + + vmmc: regulator-mmc { + compatible = "regulator-fixed"; + regulator-name = "vmmc"; + regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <3300000>; + startup-delay-us = <250>; + vin-supply = <&v_3_3>; + gpios = <&pinctrl RZG2L_GPIO(4, 1) GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + + /* power for USB-A J5003 */ + vbus1: regulator-vbus-1 { + compatible = "regulator-fixed"; + regulator-name = "vbus1"; + regulator-max-microvolt = <5000000>; + regulator-min-microvolt = <5000000>; + gpios = <&tca6416_u20 14 GPIO_ACTIVE_HIGH>; + enable-active-high; + }; + + rfkill-m2-b-gnss { + compatible = "rfkill-gpio"; + /* rfkill-gpio inverts internally */ + shutdown-gpios = <&tca6416_u20 10 GPIO_ACTIVE_LOW>; + label = "m2-b gnss"; + radio-type = "gps"; + }; + + rfkill-m2-b-wwan { + compatible = "rfkill-gpio"; + /* rfkill-gpio inverts internally */ + shutdown-gpios = <&tca6416_u20 9 GPIO_ACTIVE_HIGH>; + label = "m2-b radio"; + radio-type = "wwan"; + }; +}; + +&ehci1 { + #address-cells = <1>; + #size-cells = <0>; + + hub_2_0: hub@1 { + compatible = "usb4b4,6502", "usb4b4,6506"; + reg = <1>; + reset-gpios = <&tca6416_u20 11 GPIO_ACTIVE_LOW>; + vdd2-supply = <&v_3_3>; + vdd-supply = <&v_1_2>; + }; +}; + +&i2c0 { + /* highest i2c clock supported by all peripherals is 400kHz */ + + tca6416_u20: gpio@20 { + compatible = "ti,tcal6416"; + reg = <0x20>; + #gpio-cells = <2>; + gpio-controller; + gpio-line-names = "TCA_INT/EXT_UART", "TCA_UARTA_232/485", + "TCA_UARTB_232/485", "TCA_INT/EXT_CAN", + "TCA_NXP/REN", "TCA_M.2B_3V3_EN", + "TCA_M.2M_3V3_EN", "TCA_M.2M_RESET#", + "TCA_M.2B_RESET#", "TCA_M.2B_W_DIS#", + "TCA_M.2B_GPS_EN#", "TCA_USB-HUB_RST#", + "TCA_USB_HUB3_PWR_EN", "TCA_USB_HUB4_PWR_EN", + "TCA_USB1_PWR_EN", "TCA_VIDEO_PWR_EN"; + + m2-b-reset-hog { + gpios = <8 GPIO_ACTIVE_LOW>; + gpio-hog; + line-name = "m2-b-reset"; + output-low; + }; + + m2-m-reset-hog { + gpios = <7 GPIO_ACTIVE_LOW>; + gpio-hog; + line-name = "m2-m-reset"; + /* + * M.2 Key-M connector only supports PCI, + * but RZ/G2L(C) has no pci controller. + * Keep any card in reset. + */ + output-high; + }; + }; + + tca6416_u21: gpio@21 { + compatible = "ti,tcal6416"; + reg = <0x21>; + #interrupt-cells = <2>; + interrupt-controller; + #gpio-cells = <2>; + gpio-controller; + gpio-line-names = "TCA_SPI_TPM/EXT", "TCA_TPM_RST#", + "TCA_I2C_RST", "TCA_RS232_SHTD#", + "TCA_LCD_I2C_RST", "TCA_DIG_OUT1", + "TCA_bDIG_IN1", "TCA_SENS_INT", + "TCA_ALERT#", "TCA_TPM_PIRQ#", + "TCA_RTC_INT", "TCA_M.2M_WAKW_ON_LAN", + "TCA_M.2M_CLKREQ#", "TCA_LVDS_INT#", + "", "TCA_POE_AT"; + /* + * Level interrupts are typical for gpio expander but not supported on rz/g2l + * gpios. However since TCAL6416 latches interrupts and clears only on reading + * port register, falling edge trigger doesn't lose events. + */ + interrupts-extended = <&pinctrl RZG2L_GPIO(4, 0) IRQ_TYPE_EDGE_FALLING>; + + lcd-i2c-reset-hog { + gpios = <4 (GPIO_ACTIVE_LOW|GPIO_PULL_UP|GPIO_OPEN_DRAIN)>; + line-name = "lcd-i2c-reset"; + output-low; + /* + * reset shared between U37 and U48, to be + * supported once gpio-pca953x switches to + * reset framework. + */ + gpio-hog; + }; + + lvds-irq-hog { + gpios = <13 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; + gpio-hog; + input; + line-name = "lvds-irq"; + }; + + m2-m-clkreq-hog { + gpios = <12 GPIO_ACTIVE_LOW>; + gpio-hog; + input; + line-name = "m2-m-clkreq"; + }; + + rs232_shutdown: rs232-shutdown-hog { + gpios = <3 GPIO_ACTIVE_LOW>; + gpio-hog; + line-name = "rs232-shutdown"; + output-low; + }; + + sensor-irq-hog { + gpios = <7 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; + gpio-hog; + input; + line-name = "sensor-irq"; + }; + + tpm-irq-hog { + gpios = <9 (GPIO_ACTIVE_LOW | GPIO_PULL_UP)>; + gpio-hog; + input; + line-name = "tpm-irq"; + }; + }; + + led-controller@30 { + compatible = "ti,lp5562"; + reg = <0x30>; + #address-cells = <1>; + #size-cells = <0>; + /* use internal clock, could use external generated by rtc */ + clock-mode = /bits/ 8 <1>; + + multi-led@0 { + reg = <0x0>; + #address-cells = <1>; + #size-cells = <0>; + color = ; + label = "D7"; + + led@0 { + reg = <0x0>; + color = ; + led-cur = /bits/ 8 <0x32>; + max-cur = /bits/ 8 <0x64>; + }; + + led@1 { + reg = <0x1>; + color = ; + led-cur = /bits/ 8 <0x19>; + max-cur = /bits/ 8 <0x32>; + }; + + led@2 { + reg = <0x2>; + color = ; + led-cur = /bits/ 8 <0x19>; + max-cur = /bits/ 8 <0x32>; + }; + }; + + led@3 { + reg = <0x3>; + chan-name = "D8"; + color = ; + label = "D8"; + led-cur = /bits/ 8 <0x19>; + max-cur = /bits/ 8 <0x64>; + }; + }; + + light-sensor@44 { + compatible = "isil,isl29023"; + reg = <0x44>; + /* IRQ shared between accelerometer, light-sensor and Tamper input (J5007) */ + interrupts-extended = <&tca6416_u21 7 IRQ_TYPE_LEVEL_LOW>; + }; + + accelerometer@53 { + compatible = "adi,adxl345"; + reg = <0x53>; + interrupts-extended = <&tca6416_u21 7 IRQ_TYPE_LEVEL_LOW>; + /* IRQ shared between accelerometer, light-sensor and Tamper input (J5007) */ + interrupt-names = "INT1"; + }; + + carrier_eeprom: eeprom@57 { + compatible = "atmel,24c02"; + reg = <0x57>; + pagesize = <8>; + }; + + carrier_rtc: rtc@69 { + compatible = "abracon,ab1805"; + reg = <0x69>; + /* + * AM1805 RTC used on this board has only nTIRQ pins wired, + * which is for countdown timer irqs only. + * Driver does not support this, disable for now. + * + * interrupts-extended = <&tca6416_u21 10 IRQ_TYPE_LEVEL_LOW>; + */ + abracon,tc-diode = "schottky"; + abracon,tc-resistor = <3>; + }; +}; + +&i2c1 { + /* highest i2c clock supported by all peripherals is 400kHz */ + + i2c-mux@70 { + compatible = "nxp,pca9546"; + reg = <0x70>; + #address-cells = <1>; + #size-cells = <0>; + /* + * This reset is open drain with HW 10k pull-up resistor, + * but reset core does not support GPIO_OPEN_DRAIN flag. + * The pull-up and GPIO voltages match, push-pull is safe. + */ + reset-gpios = <&tca6416_u21 2 GPIO_ACTIVE_LOW>; + + /* channel 0 routed to expansion connector (J22) */ + i2c_exp: i2c@0 { + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + }; + + /* channel 1 routed to mipi-csi connector (J23) */ + i2c_csi: i2c@1 { + reg = <1>; + #address-cells = <1>; + #size-cells = <0>; + }; + + /* channel 2 routed to mipi-dsi connector (J25) */ + i2c_dsi: i2c@2 { + reg = <2>; + #address-cells = <1>; + #size-cells = <0>; + + tca6408_u48: gpio@21 { + compatible = "ti,tca6408"; + reg = <0x21>; + #gpio-cells = <2>; + gpio-line-names = "CAM_RST#", "DSI_RESET", + "DSI_STBYB", "DSI_PWM_BL", + "DSI_L/R", "DSI_U/D", + "DSI_CTP_/RST", "CAM_TRIG"; + /* + * reset shared between U37 and U48, to be + * supported once gpio-pca953x switches to + * reset framework. + * + * reset-gpios = <&tca6416_u21 4 + * (GPIO_ACTIVE_LOW|GPIO_PULL_UP|GPIO_OPEN_DRAIN)>; + */ + gpio-controller; + }; + }; + + /* channel 3 routed to lvds connector (J24) */ + i2c_lvds: i2c@3 { + reg = <3>; + #address-cells = <1>; + #size-cells = <0>; + + tca6408_u37: gpio@20 { + compatible = "ti,tca6408"; + reg = <0x20>; + #gpio-cells = <2>; + gpio-line-names = "SELB", "LVDS_RESET", + "LVDS_STBYB", "LVDS_PWM_BL", + "LVDS_L/R", "LVDS_U/D", + "LVDS_CTP_/RST", ""; + /* + * reset shared between U37 and U48, to be + * supported once gpio-pca953x switches to + * reset framework. + * + * reset-gpios = <&tca6416_u21 4 + * (GPIO_ACTIVE_LOW|GPIO_PULL_UP|GPIO_OPEN_DRAIN)>; + */ + gpio-controller; + }; + }; + }; +}; + +&ohci0 { + dr_mode = "host"; +}; + +&phy0 { + leds { + #address-cells = <1>; + #size-cells = <0>; + + /* LED_0 pin */ + led@0 { + reg = <0>; + color = ; + default-state = "keep"; + function = LED_FUNCTION_LAN; + }; + }; +}; + +&pinctrl { + /* UARTA */ + scif1_pins: scif1 { + pinmux = , /* SCIF1_RXD */ + ; /* SCIF1_TXD */ + }; + + /* UARTB */ + scif3_pins: scif3 { + pinmux = , /* SCIF3_RXD */ + ; /* SCIF3_TXD */ + }; +}; + +&scif1 { + pinctrl-0 = <&scif1_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + +&scif3 { + pinctrl-0 = <&scif3_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + +&spi1 { + /* native cs does not support cs persistence required for tpm */ + cs-gpios = <&pinctrl RZG2L_GPIO(44, 3) GPIO_ACTIVE_LOW>; + num-cs = <1>; + pinctrl-0 = <&spi1_pins>; + pinctrl-names = "default"; + status = "okay"; + + spi1_muxed: spi@0 { + compatible = "spi-mux"; + reg = <0>; + #address-cells = <1>; + #size-cells = <0>; + mux-controls = <&spi_mux>; + /* mux bandwidth is 2GHz, soc max. spi clock is P0/2 = 50MHz */ + spi-max-frequency = <50000000>; + + tpm@0 { + compatible = "infineon,slb9670", "tcg,tpm_tis-spi"; + reg = <0>; + interrupts-extended = <&tca6416_u21 9 IRQ_TYPE_LEVEL_LOW>; + reset-gpios = <&tca6416_u21 1 (GPIO_ACTIVE_LOW | GPIO_OPEN_DRAIN)>; + spi-max-frequency = <43000000>; + }; + }; +}; + +&usb2_phy0 { + vbus-supply = <&vbus1>; +}; diff --git a/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-microsd.dtso b/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-microsd.dtso new file mode 100644 index 0000000000000..0f92a9d2ccd98 --- /dev/null +++ b/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-microsd.dtso @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Device Tree Overlay for the RZ/G2L(C) Solidrun SOM SD + * + * Copyright (C) 2024 SolidRun Ltd. + */ + +/dts-v1/; +/plugin/; + +#include +#include + +&sdhi0 { + bus-width = <4>; + full-pwr-cycle; + mux-states = <&sdhi0_mux 1>; + pinctrl-0 = <&sdhi0_4bit_pins>, <&sdhi0_cd_pins>; + pinctrl-1 = <&sdhi0_4bit_uhs_pins>, <&sdhi0_cd_pins>; + pinctrl-names = "default", "state_uhs"; + sd-uhs-sdr104; + sd-uhs-sdr50; + vmmc-supply = <&vmmc>; + vqmmc-supply = <®_pmic_ldo1>; + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-rs485-a.dtso b/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-rs485-a.dtso new file mode 100644 index 0000000000000..4bcb22d518f05 --- /dev/null +++ b/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-rs485-a.dtso @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Copyright 2025 Josua Mayer + * + * Overlay for enabling HummingBoard IIoT on-board RS485 Port A on connector J5004. + * + * Because Renesas uart driver does not support rs485, + * users must manually toggle P41_1 between RX & TX. + */ + +/dts-v1/; +/plugin/; + +&scif1_rs_232_485_mux { + /* select rs485 */ + idle-state = <1>; +}; diff --git a/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-rs485-b.dtso b/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-rs485-b.dtso new file mode 100644 index 0000000000000..6f460b3e0b256 --- /dev/null +++ b/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot-rs485-b.dtso @@ -0,0 +1,17 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Copyright 2025 Josua Mayer + * + * Overlay for enabling HummingBoard IIoT on-board RS485 Port B on connector J5004. + * + * Because Renesas uart driver does not support rs485, + * users must manually toggle P41_0 between RX & TX. + */ + +/dts-v1/; +/plugin/; + +&scif3_rs_232_485_mux { + /* select rs485 */ + idle-state = <1>; +}; diff --git a/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot.dtsi b/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot.dtsi new file mode 100644 index 0000000000000..22f066079e69a --- /dev/null +++ b/arch/arm64/boot/dts/renesas/rzg2l-hummingboard-iiot.dtsi @@ -0,0 +1,49 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Copyright 2025 Josua Mayer + */ + +#include "rzg2l-hummingboard-iiot-common.dtsi" + +&canfd { + pinctrl-names = "default"; + pinctrl-0 = <&can0_pins>, <&can1_pins>; + status = "okay"; + + channel0 { + status = "okay"; + }; + + channel1 { + status = "okay"; + }; +}; + +&phy1 { + leds { + #address-cells = <1>; + #size-cells = <0>; + + /* LED_0 pin */ + led@0 { + reg = <0>; + color = ; + function = LED_FUNCTION_LAN; + default-state = "keep"; + }; + }; +}; + +&pinctrl { + /* CANA */ + can0_pins: can0 { + pinmux = , /* CAN0_TX */ + ; /* CAN0_RX */ + }; + + /* CANB */ + can1_pins: can1 { + pinmux = , /* CAN1_TX */ + ; /* CAN1_RX */ + }; +}; diff --git a/arch/arm64/boot/dts/renesas/rzg2l-sr-som-emmc.dtso b/arch/arm64/boot/dts/renesas/rzg2l-sr-som-emmc.dtso new file mode 100644 index 0000000000000..92e3406be7dfc --- /dev/null +++ b/arch/arm64/boot/dts/renesas/rzg2l-sr-som-emmc.dtso @@ -0,0 +1,44 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Device Tree Overlay for the RZ/G2L(C) Solidrun SOM eMMC + * + * Copyright (C) 2024 SolidRun Ltd. + */ + +/dts-v1/; +/plugin/; + +#include +#include + +®_pmic_ldo1 { + /* + * This ldo can switch mmc host controller io voltage between + * 1.8V and 3.3V. The eMMC IO voltage however is supplied from + * reg_pmic_buck3 which is fixed at 1.8V. + * Lower this ldo maximum voltage to 1.8V to prevent setting 3.3V. + */ + regulator-max-microvolt = <1800000>; +}; + +&sdhi0 { + /* + * Host controller and eMMC have separate io voltage regulators: + * reg_pmic_ldo1 (1.8V/3.3V); reg_pmic_buck3 (1.8V only). + * Link to the switchable regulator ensuring that it gets configured. + */ + vqmmc-supply = <®_pmic_ldo1>; + bus-width = <8>; + cap-mmc-hw-reset; + mmc-hs200-1_8v; + mux-states = <&sdhi0_mux 0>; + non-removable; + no-sdio; + pinctrl-0 = <&sdhi0_8bit_uhs_pins>, <&sdhi0_rst_pins>; + pinctrl-1 = <&sdhi0_8bit_uhs_pins>, <&sdhi0_rst_pins>; + pinctrl-names = "default", "state_uhs"; + vmmc-supply = <®_pmic_buck4>; + /* emmc io voltage is hard-wired for 1.8V, disable sd modes */ + no-sd; + status = "okay"; +}; diff --git a/arch/arm64/boot/dts/renesas/rzg2l-sr-som.dtsi b/arch/arm64/boot/dts/renesas/rzg2l-sr-som.dtsi new file mode 100644 index 0000000000000..c1dcc5ea430aa --- /dev/null +++ b/arch/arm64/boot/dts/renesas/rzg2l-sr-som.dtsi @@ -0,0 +1,473 @@ +// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) +/* + * Device Tree Source for the RZ/G2L Solidrun SoM + * + * Copyright 2023 SolidRun Ltd. + * Copyright 2025 Josua Mayer + */ + +#include +#include + +/ { + aliases { + ethernet0 = ð0; + ethernet1 = ð1; + i2c0 = &i2c0; + i2c1 = &i2c1; + i2c2 = &i2c3; + mmc0 = &sdhi0; + mmc1 = &sdhi1; + rtc0 = &pmic; + serial0 = &scif0; + serial1 = &scif1; + serial2 = &scif2; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + memory@48000000 { + /* + * Physical RAM starts at 0x40000000, but Renesas RZ/G2 BSPs + * reserve and hide the first 128MB for TrustZone by default. + * + * Minimum size for this SoM is 1GB, and the bootloader patches + * the dtb according to the actual RAM size and reservations. + */ + reg = <0x0 0x48000000 0x0 0x38000000>; + device_type = "memory"; + }; + + sdhi0_mux: mux-controller-0 { + compatible = "gpio-mux"; + #mux-control-cells = <0>; + #mux-state-cells = <1>; + /* + * Mux switches SD0_DATA[0-3], SD0_CMD & SD0_CLK between + * on-SoM eMMC and board-to-board connector using one gpio: + * Low = connector, High = eMMC. + * Define active-low for logical mux state 0 = eMMC, 1 = connector. + */ + mux-gpios = <&pinctrl RZG2L_GPIO(22, 1) GPIO_ACTIVE_LOW>; + }; + + reg_pmic_buck1: regulator-pmic-buck1 { + compatible = "regulator-fixed"; + regulator-name = "pmic-buck1"; + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <1100000>; + regulator-min-microvolt = <1100000>; + }; + + reg_pmic_buck3: regulator-pmic-buck3 { + compatible = "regulator-fixed"; + regulator-name = "pmic-buck3"; + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <1800000>; + regulator-min-microvolt = <1800000>; + }; + + reg_pmic_buck4: regulator-pmic-buck4 { + compatible = "regulator-fixed"; + regulator-name = "pmic-buck4"; + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <3300000>; + }; + + reg_pmic_ldo1: regulator-pmic-ldo1 { + compatible = "regulator-gpio"; + regulator-name = "pmic-ldo1"; + gpios = <&pinctrl RZG2L_GPIO(39, 0) GPIO_ACTIVE_HIGH>; + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <3300000>; + regulator-min-microvolt = <1800000>; + states = <3300000 1>, <1800000 0>; + }; + + reg_pmic_ldo2: regulator-pmic-ldo2 { + compatible = "regulator-fixed"; + regulator-name = "pmic-ldo2"; + /* + * This ldo can switch mmc host controller io voltage between + * 1.8V and 3.3V by assembly option of pull-up / pull-dow. + * Default assembly is 3.3V. + */ + regulator-min-microvolt = <3300000>; + regulator-always-on; + regulator-boot-on; + regulator-max-microvolt = <3300000>; + }; + + reserved-memory { + ranges; + #address-cells = <2>; + #size-cells = <2>; + + global_cma: linux,cma@58000000 { + compatible = "shared-dma-pool"; + reg = <0x0 0x58000000 0x0 0x10000000>; + reusable; + linux,cma-default; + }; + }; + + sdhi1_pwrseq: sdhi1-pwrseq { + compatible = "mmc-pwrseq-simple"; + reset-gpios = <&pinctrl RZG2L_GPIO(23, 1) GPIO_ACTIVE_LOW>; + }; + + /* 32.768kHz crystal */ + x2: x2-clock { + compatible = "fixed-clock"; + #clock-cells = <0>; + clock-frequency = <32768>; + }; +}; + +&ehci0 { + status = "okay"; +}; + +&ehci1 { + status = "okay"; +}; + +ð0 { + phy-handle = <&phy0>; + pinctrl-0 = <ð0_pins>; + pinctrl-names = "default"; + /* + * ravb driver does not configure mac internal delays for RZ/G2L(C), + * instead delays are added by the MxL86110 phy driver. + */ + phy-mode = "rgmii-id"; + status = "okay"; + + phy0: ethernet-phy@0 { + reg = <0>; + /* Level interrupts are typical for phy but not supported on RZ/G2L gpios. */ + interrupts-extended = <&pinctrl RZG2L_GPIO(27, 0) IRQ_TYPE_EDGE_FALLING>; + }; +}; + +ð1 { + phy-handle = <&phy1>; + pinctrl-0 = <ð1_pins>; + pinctrl-names = "default"; + /* + * ravb driver does not configure mac internal delays for RZ/G2L(C), + * instead delays are added by the MxL86110 phy driver. + */ + phy-mode = "rgmii-id"; + status = "okay"; + + phy1: ethernet-phy@4 { + reg = <4>; + /* Level interrupts are typical for phy but not supported on RZ/G2L gpios. */ + interrupts-extended = <&pinctrl RZG2L_GPIO(42, 4) IRQ_TYPE_EDGE_FALLING>; + }; +}; + +&extal_clk { + clock-frequency = <24000000>; +}; + +&gpu { + mali-supply = <®_pmic_buck1>; +}; + +&i2c0 { + clock-frequency = <400000>; + pinctrl-0 = <&i2c0_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + +&i2c1 { + clock-frequency = <400000>; + pinctrl-0 = <&i2c1_pins>; + pinctrl-names = "default"; + status = "okay"; + + eeprom: eeprom@50 { + compatible = "atmel,24c01"; + reg = <0x50>; + pagesize = <16>; + }; +}; + +&i2c3 { + clock-frequency = <400000>; + pinctrl-0 = <&i2c3_pins>; + pinctrl-names = "default"; + status = "okay"; + + pmic: pmic@12 { + compatible = "renesas,raa215300"; + reg = <0x12>, <0x6f>; + reg-names = "main", "rtc"; + clocks = <&x2>; + clock-names = "xin"; + }; +}; + +&ohci0 { + status = "okay"; +}; + +&ohci1 { + status = "okay"; +}; + +&ostm1 { + status = "okay"; +}; + +&ostm2 { + status = "okay"; +}; + +&phyrst { + status = "okay"; +}; + +&pinctrl { + eth0_pins: eth0 { + pinmux = , /* ET0_LINKSTA */ + , /* ET0_MDC */ + , /* ET0_MDIO */ + , /* ET0_TXC */ + , /* ET0_TX_CTL */ + , /* ET0_TXD0 */ + , /* ET0_TXD1 */ + , /* ET0_TXD2 */ + , /* ET0_TXD3 */ + , /* ET0_RXC */ + , /* ET0_RX_CTL */ + , /* ET0_RXD0 */ + , /* ET0_RXD1 */ + , /* ET0_RXD2 */ + ; /* ET0_RXD3 */ + }; + + eth1_pins: eth1 { + pinmux = , /* ET1_LINKSTA */ + , /* ET1_MDC */ + , /* ET1_MDIO */ + , /* ET1_TXC */ + , /* ET1_TX_CTL */ + , /* ET1_TXD0 */ + , /* ET1_TXD1 */ + , /* ET1_TXD2 */ + , /* ET1_TXD3 */ + , /* ET1_RXC */ + , /* ET1_RX_CTL */ + , /* ET1_RXD0 */ + , /* ET1_RXD1 */ + , /* ET1_RXD2 */ + ; /* ET1_RXD3 */ + }; + + i2c0_pins: i2c0 { + input-enable; + pins = "RIIC0_SDA", "RIIC0_SCL"; + }; + + i2c1_pins: i2c1 { + input-enable; + pins = "RIIC1_SDA", "RIIC1_SCL"; + }; + + i2c3_pins: i2c3 { + pinmux = , /* RIIC3_SDA */ + ; /* RIIC3_SCL */ + }; + + qspi0_pins: qspi0 { + pins = "QSPI0_IO0", "QSPI0_IO1", "QSPI0_IO2", "QSPI0_IO3", + "QSPI0_SPCLK", "QSPI0_SSL"; + power-source = <1800>; + }; + + scif0_pins: scif0 { + pinmux = , /* SCIF0_TXD */ + ; /* SCIF0_RXD */ + }; + + scif2_pins: scif2 { + pinmux = , /* SCIF2_TXD */ + , /* SCIF2_RXD */ + , /* SCIF2_CTS# */ + ; /* SCIF2_RTS# */ + }; + + sdhi0_4bit_pins: sdhi0-4bit { + sd0_ctrl_dat03 { + pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3", + "SD0_CLK", "SD0_CMD"; + power-source = <3300>; + }; + + /* + * Pins 4-7 are hard-wired to eMMC with 1.8V IO voltage, + * with all pins sharing a single voltage domain. + * + * These pins are fixed-function lacking independently configurable + * pull-up, pull-down or output-disable. + * + * While unused, disable the input buffers to avoid sampling the still + * physically connected but unused eMMC lines. + * For output direction rely on correct controller bus-width configuration + * to avoid over-voltage to eMMC e.g. when operating at 3.3V for a 4-bit microSD. + */ + sd0_dat47 { + input-disable; + pins = "SD0_DATA4", "SD0_DATA5", "SD0_DATA6", "SD0_DATA7"; + }; + }; + + sdhi0_4bit_uhs_pins: sdhi0-4bit-uhs { + sd0_ctrl_dat03 { + pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3", + "SD0_CLK", "SD0_CMD"; + power-source = <1800>; + }; + + /* + * Pins 4-7 are hard-wired to eMMC with 1.8V IO voltage, + * with all pins sharing a single voltage domain. + * + * These pins are fixed-function, lacking configurable pull-up, pull-down or + * output-disable, while sharing the voltage domain with all SD0_* pins. + * + * While unused, disable the input buffers to avoid sampling the still + * physically connected but unused eMMC lines. + * For output direction rely on correct controller bus-width configuration + * to avoid over-voltage to eMMC e.g. when operating at 3.3V for a 4-bit microSD. + */ + sd0_dat47 { + input-disable; + pins = "SD0_DATA4", "SD0_DATA5", "SD0_DATA6", "SD0_DATA7"; + }; + }; + + sdhi0_8bit_uhs_pins: sdhi0-8bit-uhs { + sd0_ctrl { + pins = "SD0_CLK", "SD0_CMD"; + power-source = <1800>; + }; + + sd0_dat { + input-enable; + pins = "SD0_DATA0", "SD0_DATA1", "SD0_DATA2", "SD0_DATA3", + "SD0_DATA4", "SD0_DATA5", "SD0_DATA6", "SD0_DATA7"; + }; + }; + + sdhi0_cd_pins: sdhi0-cd { + pinmux = ; /* SD0_CD */ + }; + + /* SD0_RST is only routed to eMMC which uses fixed 1.8V IO voltage */ + sdhi0_rst_pins: sdhi0-rst { + pins = "SD0_RST#"; + power-source = <1800>; + }; + + sdhi1_pins: sdhi1 { + pins = "SD1_DATA0", "SD1_DATA1", "SD1_DATA2", "SD1_DATA3", + "SD1_CLK", "SD1_CMD"; + power-source = <3300>; + }; + + spi1_pins: spi1 { + pinmux = , /* RSPI1_MISO */ + , /* RSPI1_MOSI */ + ; /* RSPI1_CK */ + }; + + spi1_cs_pins: spi1-cs { + pinmux = ; /* RSPI1_SSL */ + }; +}; + +&sbc { + pinctrl-0 = <&qspi0_pins>; + pinctrl-names = "default"; + status = "okay"; + + flash@0 { + compatible = "winbond,w25q80bl", "jedec,spi-nor"; + reg = <0>; + spi-max-frequency = <50000000>; + m25p,fast-read; + }; +}; + +&scif0 { + pinctrl-0 = <&scif0_pins>; + pinctrl-names = "default"; + status = "okay"; +}; + +&scif2 { + pinctrl-0 = <&scif2_pins>; + pinctrl-names = "default"; + uart-has-rtscts; + status = "okay"; + + bluetooth { + /* + * The BT is based on BCM4345C0. Murata 1MW variant seems to + * require driving RTS on open. + * Use compatible bcm43438 to accomplish this. + */ + compatible = "brcm,bcm43438-bt"; + max-speed = <115200>; + shutdown-gpios = <&pinctrl RZG2L_GPIO(23, 0) GPIO_ACTIVE_HIGH>; + vbat-supply = <®_pmic_buck4>; + vddio-supply = <®_pmic_buck4>; + }; +}; + +/* WiFi */ +&sdhi1 { + /* Murata 1MW max rate is 50MHz */ + max-frequency = <50000000>; + bus-width = <4>; + cap-sdio-irq; + mmc-pwrseq = <&sdhi1_pwrseq>; + non-removable; + no-1-8-v; + no-sd; + pinctrl-0 = <&sdhi1_pins>; + pinctrl-names = "default"; + vmmc-supply = <®_pmic_buck4>; + /* + * Host controller IO voltage is provided from reg_pmic_ldo2, + * WiFi module IO voltage from reg_pmic_buck4. + * Neither is configurable at run-time so either can be set here. + */ + vqmmc-supply = <®_pmic_ldo2>; + status = "okay"; +}; + +&usb2_phy0 { + vbus-supply = <&usb0_vbus_otg>; + status = "okay"; +}; + +&usb2_phy1 { + status = "okay"; +}; + +&wdt0 { + status = "okay"; +}; -- 2.51.0