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Message-ID: <20240223173113.673595-1-varshini.rajendran@microchip.com>
Date: Fri, 23 Feb 2024 23:01:13 +0530
From: Varshini Rajendran <varshini.rajendran@...rochip.com>
To: <robh+dt@...nel.org>, <krzysztof.kozlowski+dt@...aro.org>,
<conor+dt@...nel.org>, <nicolas.ferre@...rochip.com>,
<alexandre.belloni@...tlin.com>, <claudiu.beznea@...on.dev>,
<andre.przywara@....com>, <gregory.clement@...tlin.com>,
<linus.walleij@...aro.org>, <baruch@...s.co.il>,
<varshini.rajendran@...rochip.com>, <mihai.sain@...rochip.com>,
<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>
Subject: [PATCH v4 39/39] ARM: dts: at91: sam9x75_curiosity: add sam9x75 curiosity board
Add device tree file for sam9x75 curiosity board.
Signed-off-by: Varshini Rajendran <varshini.rajendran@...rochip.com>
---
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@mail.gmail.com/
(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@...rochip.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";
+ 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@...00000 {
+ 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
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