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Message-ID: <108301c2-80a6-47b5-a7f9-729a95adcfe7@microchip.com>
Date: Thu, 12 Sep 2024 03:47:36 +0000
From: <Hari.PrasathGE@...rochip.com>
To: <Varshini.Rajendran@...rochip.com>, <Nicolas.Ferre@...rochip.com>,
<alexandre.belloni@...tlin.com>, <claudiu.beznea@...on.dev>,
<robh@...nel.org>, <krzk+dt@...nel.org>, <conor+dt@...nel.org>,
<linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v7 12/12] ARM: dts: microchip: sam9x75_curiosity: add
sam9x75 curiosity board
On 9/3/24 12:14 PM, Varshini Rajendran wrote:
> Add device tree file for sam9x75 curiosity board.
>
> Signed-off-by: Varshini Rajendran <varshini.rajendran@...rochip.com>
> ---
> Changes in v7:
>
> - Added child nodes to the tcb node.
> - Moved poweroff node to maintain alphabetic order.
> ---
Thanks Varshini.
Reviewed-by: Hari Prasath Gujulan Elango <hari.prasathge@...rochip.com>
> arch/arm/boot/dts/microchip/Makefile | 3 +
> .../dts/microchip/at91-sam9x75_curiosity.dts | 324 ++++++++++++++++++
> 2 files changed, 327 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 0c45c8d17468..470fe46433a9 100644
> --- a/arch/arm/boot/dts/microchip/Makefile
> +++ b/arch/arm/boot/dts/microchip/Makefile
> @@ -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 \
> 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..1119f5d60d89
> --- /dev/null
> +++ b/arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts
> @@ -0,0 +1,324 @@
> +// 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";
> +
> + 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@...00000 {
> + 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 */
> +
> +&poweroff {
> + debounce-delay-us = <976>;
> + status = "okay";
> +
> + input@0 {
> + reg = <0>;
> + };
> +};
> +
> +&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>;
> +};
> +
> +&tcb {
> + timer0: timer@0 {
> + compatible = "atmel,tcb-timer";
> + reg = <0>;
> + };
> +
> + timer1: timer@1 {
> + compatible = "atmel,tcb-timer";
> + reg = <1>;
> + };
> +};
> +
> +&trng {
> + status = "okay";
> +};
> +
> +&watchdog {
> + status = "okay";
> +};
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