Add device tree file for sam9x75 curiosity board. Signed-off-by: Varshini Rajendran <varshini.rajendran@xxxxxxxxxxxxx> --- Changes in v4: - Removed full node paths - Renamed Leds with color names - Corrected regulator node names - Added support for classd and i2s nodes and their corresponding pinctrl nodes - Dropped USB nodes owing to the discussion here https://lore.kernel.org/linux-devicetree/CAL_JsqJ9PrX6fj-EbffeJce09MXs=B7t+KS_kOinxaRx38=WxA@xxxxxxxxxxxxxx/ (Explained elaborately in the cover letter) - Updated the linux,code property with the necessary value --- arch/arm/boot/dts/microchip/Makefile | 3 + .../dts/microchip/at91-sam9x75_curiosity.dts | 309 ++++++++++++++++++ 2 files changed, 312 insertions(+) create mode 100644 arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts diff --git a/arch/arm/boot/dts/microchip/Makefile b/arch/arm/boot/dts/microchip/Makefile index efde9546c8f4..5b3d518da319 100644 --- a/arch/arm/boot/dts/microchip/Makefile +++ b/arch/arm/boot/dts/microchip/Makefile @@ -12,6 +12,7 @@ DTC_FLAGS_at91-sama5d3_eds := -@ DTC_FLAGS_at91-sama5d3_xplained := -@ DTC_FLAGS_at91-sama5d4_xplained := -@ DTC_FLAGS_at91-sama7g5ek := -@ +DTC_FLAGS_at91-sam9x75_curiosity := -@ dtb-$(CONFIG_SOC_AT91RM9200) += \ at91rm9200ek.dtb \ mpa1600.dtb @@ -59,6 +60,8 @@ dtb-$(CONFIG_SOC_AT91SAM9) += \ dtb-$(CONFIG_SOC_SAM9X60) += \ at91-sam9x60_curiosity.dtb \ at91-sam9x60ek.dtb +dtb-$(CONFIG_SOC_SAM9X7) += \ + at91-sam9x75_curiosity.dtb dtb-$(CONFIG_SOC_SAM_V7) += \ at91-kizbox2-2.dtb \ at91-kizbox3-hs.dtb \ diff --git a/arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts b/arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts new file mode 100644 index 000000000000..be37022d3d05 --- /dev/null +++ b/arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts @@ -0,0 +1,309 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * at91-sam9x75_curiosity.dts - Device Tree file for Microchip SAM9X75 Curiosity board + * + * Copyright (C) 2023 Microchip Technology Inc. and its subsidiaries + * + * Author: Varshini Rajendran <varshini.rajendran@xxxxxxxxxxxxx> + */ +/dts-v1/; +#include "sam9x7.dtsi" +#include <dt-bindings/input/input.h> + +/ { + model = "Microchip SAM9X75 Curiosity"; + compatible = "microchip,sam9x75-curiosity", "microchip,sam9x7", "atmel,at91sam9"; + + aliases { + i2c0 = &i2c6; + }; + + chosen { + stdout-path = "serial0:115200n8"; + }; + + gpio-keys { + compatible = "gpio-keys"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_key_gpio_default>; + + button-user { + label = "USER"; + gpios = <&pioC 9 GPIO_ACTIVE_LOW>; + linux,code = <KEY_0>; + wakeup-source; + }; + }; + + leds { + compatible = "gpio-leds"; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_led_gpio_default>; + + led-red { + label = "red"; + gpios = <&pioC 19 GPIO_ACTIVE_HIGH>; + }; + + led-green { + label = "green"; + gpios = <&pioC 21 GPIO_ACTIVE_HIGH>; + }; + + led-blue { + label = "blue"; + gpios = <&pioC 20 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "heartbeat"; + }; + }; + + memory@20000000 { + device_type = "memory"; + reg = <0x20000000 0x10000000>; + }; +}; + +&classd { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_classd>; + atmel,pwm-type = "diff"; + atmel,non-overlap-time = <10>; + status = "okay"; +}; + +&dbgu { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_dbgu>; + status = "okay"; +}; + +&dma0 { + status = "okay"; +}; + +&flx6 { + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_TWI>; + status = "okay"; +}; + +&i2c6 { + #address-cells = <1>; + #size-cells = <0>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_flx6_default>; + i2c-analog-filter; + i2c-digital-filter; + i2c-digital-filter-width-ns = <35>; + status = "okay"; + + pmic@5b { + compatible = "microchip,mcp16502"; + reg = <0x5b>; + + regulators { + vdd_3v3: VDD_IO { + regulator-name = "VDD_IO"; + regulator-min-microvolt = <3000000>; + regulator-max-microvolt = <3600000>; + regulator-initial-mode = <2>; + regulator-allowed-modes = <2>, <4>; + regulator-always-on; + + regulator-state-standby { + regulator-on-in-suspend; + regulator-mode = <4>; + }; + + regulator-state-mem { + regulator-mode = <4>; + }; + }; + + vddioddr: VDD_DDR { + regulator-name = "VDD_DDR"; + regulator-min-microvolt = <1283000>; + regulator-max-microvolt = <1450000>; + regulator-initial-mode = <2>; + regulator-allowed-modes = <2>, <4>; + regulator-always-on; + + regulator-state-standby { + regulator-on-in-suspend; + regulator-mode = <4>; + }; + + regulator-state-mem { + regulator-on-in-suspend; + regulator-mode = <4>; + }; + }; + + vddcore: VDD_CORE { + regulator-name = "VDD_CORE"; + regulator-min-microvolt = <500000>; + regulator-max-microvolt = <1210000>; + regulator-initial-mode = <2>; + regulator-allowed-modes = <2>, <4>; + regulator-always-on; + + regulator-state-standby { + regulator-on-in-suspend; + regulator-mode = <4>; + }; + + regulator-state-mem { + regulator-mode = <4>; + }; + }; + + vddcpu: VDD_OTHER { + regulator-name = "VDD_OTHER"; + regulator-min-microvolt = <1700000>; + regulator-max-microvolt = <3600000>; + regulator-initial-mode = <2>; + regulator-allowed-modes = <2>, <4>; + regulator-ramp-delay = <3125>; + regulator-always-on; + + regulator-state-standby { + regulator-on-in-suspend; + regulator-mode = <4>; + }; + + regulator-state-mem { + regulator-mode = <4>; + }; + }; + + vldo1: LDO1 { + regulator-name = "LDO1"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3700000>; + regulator-always-on; + + regulator-state-standby { + regulator-on-in-suspend; + }; + }; + + vldo2: LDO2 { + regulator-name = "LDO2"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <3700000>; + + regulator-state-standby { + regulator-on-in-suspend; + }; + }; + }; + }; +}; + +&i2s { + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_i2s_default>; + #sound-dai-cells = <0>; + status = "disabled"; +}; + +&main_xtal { + clock-frequency = <24000000>; +}; + +&pinctrl { + + classd { + pinctrl_classd: classd { + atmel,pins = + <AT91_PIOA 18 AT91_PERIPH_C AT91_PINCTRL_PULL_UP + AT91_PIOA 19 AT91_PERIPH_C AT91_PINCTRL_PULL_DOWN>; + }; + }; + + dbgu { + pinctrl_dbgu: dbgu-0 { + atmel,pins = <AT91_PIOA 26 AT91_PERIPH_A AT91_PINCTRL_PULL_UP + AT91_PIOA 27 AT91_PERIPH_A AT91_PINCTRL_NONE>; + }; + }; + + flexcom { + pinctrl_flx6_default: flx6-twi { + atmel,pins = + <AT91_PIOA 24 AT91_PERIPH_A AT91_PINCTRL_PULL_UP + AT91_PIOA 25 AT91_PERIPH_A AT91_PINCTRL_PULL_UP>; + }; + }; + + gpio-keys { + pinctrl_key_gpio_default: key-gpio-default { + atmel,pins = <AT91_PIOC 9 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>; + }; + }; + + i2s { + pinctrl_i2s_default: i2s { + atmel,pins = + <AT91_PIOB 26 AT91_PERIPH_D AT91_PINCTRL_NONE /* I2SCK */ + AT91_PIOB 15 AT91_PERIPH_D AT91_PINCTRL_NONE /* I2SWS */ + AT91_PIOB 16 AT91_PERIPH_D AT91_PINCTRL_NONE /* I2SDIN */ + AT91_PIOB 17 AT91_PERIPH_D AT91_PINCTRL_NONE /* I2SDOUT */ + AT91_PIOB 25 AT91_PERIPH_D AT91_PINCTRL_NONE>; /* I2SMCK */ + }; + }; + + leds { + pinctrl_led_gpio_default: led-gpio-default { + atmel,pins = <AT91_PIOC 19 AT91_PERIPH_GPIO AT91_PINCTRL_NONE + AT91_PIOC 21 AT91_PERIPH_GPIO AT91_PINCTRL_NONE + AT91_PIOC 20 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>; + }; + }; + + sdmmc0 { + pinctrl_sdmmc0_default: sdmmc0 { + atmel,pins = + <AT91_PIOA 2 AT91_PERIPH_A (AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_DIS) /* PA2 CK periph A with pullup */ + AT91_PIOA 1 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_DIS) /* PA1 CMD periph A with pullup */ + AT91_PIOA 0 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_DIS) /* PA0 DAT0 periph A */ + AT91_PIOA 3 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_DIS) /* PA3 DAT1 periph A with pullup */ + AT91_PIOA 4 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_DIS) /* PA4 DAT2 periph A with pullup */ + AT91_PIOA 5 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_DIS)>; /* PA5 DAT3 periph A with pullup */ + }; + }; + +}; /* pinctrl */ + +&rtt { + atmel,rtt-rtc-time-reg = <&gpbr 0x0>; +}; + +&sdmmc0 { + bus-width = <4>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_sdmmc0_default>; + cd-gpios = <&pioA 23 GPIO_ACTIVE_LOW>; + disable-wp; + status = "okay"; +}; + +&slow_xtal { + clock-frequency = <32768>; +}; + +&power_management { + debounce-delay-us = <976>; + status = "okay"; + + input@0 { + reg = <0>; + }; +}; + +&trng { + status = "okay"; +}; + +&watchdog { + status = "okay"; +}; -- 2.25.1
