@@ -2,6 +2,7 @@
# Enables support for device-tree overlays
DTC_FLAGS_at91-sam9x60_curiosity := -@
DTC_FLAGS_at91-sam9x60ek := -@
+DTC_FLAGS_at91-sam9x75_curiosity := -@
DTC_FLAGS_at91-sama5d27_som1_ek := -@
DTC_FLAGS_at91-sama5d27_wlsom1_ek := -@
DTC_FLAGS_at91-sama5d29_curiosity := -@
@@ -60,6 +61,8 @@ 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 \
new file mode 100644
@@ -0,0 +1,312 @@
+// 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@microchip.com>
+ */
+/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";
+
+ led_red: led-red {
+ label = "red";
+ gpios = <&pioC 14 GPIO_ACTIVE_HIGH>;
+ pinctrl-0 = <&pinctrl_red_led_gpio_default>;
+ };
+
+ led_green: led-green {
+ label = "green";
+ gpios = <&pioC 21 GPIO_ACTIVE_HIGH>;
+ pinctrl-0 = <&pinctrl_green_led_gpio_default>;
+ };
+
+ led_blue: led-blue {
+ label = "blue";
+ gpios = <&pioC 20 GPIO_ACTIVE_HIGH>;
+ pinctrl-0 = <&pinctrl_blue_led_gpio_default>;
+ linux,default-trigger = "heartbeat";
+ };
+ };
+
+ memory@20000000 {
+ reg = <0x20000000 0x10000000>;
+ device_type = "memory";
+ };
+};
+
+&classd {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_classd_default>;
+ atmel,pwm-type = "diff";
+ atmel,non-overlap-time = <10>;
+ status = "okay";
+};
+
+&dbgu {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_dbgu_default>;
+ 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 = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ 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 = <1350000>;
+ regulator-max-microvolt = <1350000>;
+ 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 = <1150000>;
+ regulator-max-microvolt = <1150000>;
+ 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>;
+ };
+ };
+
+ dcdc4: VDD_OTHER {
+ regulator-name = "VDD_OTHER";
+ regulator-min-microvolt = <1150000>;
+ regulator-max-microvolt = <1150000>;
+ 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 = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+
+ regulator-state-standby {
+ regulator-on-in-suspend;
+ };
+ };
+
+ vldo2: LDO2 {
+ regulator-name = "LDO2";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+
+ regulator-state-standby {
+ regulator-on-in-suspend;
+ };
+ };
+ };
+ };
+};
+
+&i2s {
+ pinctrl-names = "default";
+ pinctrl-0 = <&pinctrl_i2s_default>;
+ #sound-dai-cells = <0>;
+ status = "okay";
+};
+
+&main_xtal {
+ clock-frequency = <24000000>;
+};
+
+&pinctrl {
+ classd {
+ pinctrl_classd_default: classd-default {
+ 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_default: dbgu-default {
+ 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-default {
+ 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-default {
+ 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_red_led_gpio_default: red-led-gpio-default {
+ atmel,pins = <AT91_PIOC 14 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+ };
+ pinctrl_green_led_gpio_default: green-led-gpio-default {
+ atmel,pins = <AT91_PIOC 21 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+ };
+ pinctrl_blue_led_gpio_default: blue-led-gpio-default {
+ atmel,pins = <AT91_PIOC 20 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
+ };
+ };
+
+ sdmmc0 {
+ pinctrl_sdmmc0_default: sdmmc0-default {
+ atmel,pins =
+ <AT91_PIOA 2 AT91_PERIPH_A (AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_ENA)>, /* PA2 CK periph A with pullup */
+ <AT91_PIOA 1 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_ENA)>, /* PA1 CMD periph A with pullup */
+ <AT91_PIOA 0 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_ENA)>, /* PA0 DAT0 periph A */
+ <AT91_PIOA 3 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_ENA)>, /* PA3 DAT1 periph A with pullup */
+ <AT91_PIOA 4 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_ENA)>, /* PA4 DAT2 periph A with pullup */
+ <AT91_PIOA 5 AT91_PERIPH_A (AT91_PINCTRL_PULL_UP | AT91_PINCTRL_DRIVE_STRENGTH_HI | AT91_PINCTRL_SLEWRATE_ENA)>; /* 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>;
+};
+
+&poweroff {
+ debounce-delay-us = <976>;
+ status = "okay";
+
+ input@0 {
+ reg = <0>;
+ };
+};
+
+&trng {
+ status = "okay";
+};
+
+&watchdog {
+ status = "okay";
+};
Add device tree file for sam9x75 curiosity board. Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com> --- Changes in v6: - Corrected the regulator voltages according to the schematics --- arch/arm/boot/dts/microchip/Makefile | 3 + .../dts/microchip/at91-sam9x75_curiosity.dts | 312 ++++++++++++++++++ 2 files changed, 315 insertions(+) create mode 100644 arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts