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Message-ID: <ea2b76bb-e3ae-eb10-7d9d-c17e7dbd2dc1@tuxon.dev>
Date: Wed, 2 Aug 2023 07:58:25 +0300
From: claudiu beznea <claudiu.beznea@...on.dev>
To: Varshini Rajendran <varshini.rajendran@...rochip.com>,
robh+dt@...nel.org, krzysztof.kozlowski+dt@...aro.org,
conor+dt@...nel.org, nicolas.ferre@...rochip.com,
alexandre.belloni@...tlin.com, claudiu.beznea@...rochip.com,
andre.przywara@....com, f.fainelli@...il.com,
romain.perier@...il.com, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org
Subject: Re: [PATCH v3 50/50] ARM: dts: at91: sam9x75_curiosity: add sam9x75
curiosity board
On 28.07.2023 13:31, Varshini Rajendran wrote:
> Add device tree file for sam9x75 curiosity board.
>
> Signed-off-by: Varshini Rajendran <varshini.rajendran@...rochip.com>
> ---
> arch/arm/boot/dts/microchip/Makefile | 5 +
> .../dts/microchip/at91-sam9x75_curiosity.dts | 311 ++++++++++++++++++
> 2 files changed, 316 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 0f5193d05a31..f3d604c30325 100644
> --- a/arch/arm/boot/dts/microchip/Makefile
> +++ b/arch/arm/boot/dts/microchip/Makefile
> @@ -10,6 +10,7 @@ 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-$(CONFIG_SOC_AT91RM9200) += \
> at91rm9200ek.dtb \
> mpa1600.dtb
> @@ -61,6 +62,10 @@ dtb-$(CONFIG_SOC_SAM9X60) += \
> at91-sam9x60_curiosity.dtb \
> at91-sam9x60ek.dtb
> # Enables support for device-tree overlays
> +DTC_FLAGS_at91-sam9x75_curiosity := -@
> +dtb-$(CONFIG_SOC_SAM9X7) += \
> + at91-sam9x75_curiosity.dtb
> +# Enables support for device-tree overlays
> DTC_FLAGS_at91-sama5d27_som1_ek := -@
> DTC_FLAGS_at91-sama5d27_wlsom1_ek := -@
> DTC_FLAGS_at91-sama5d2_icp := -@
> 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..a9ecb02a9f3c
> --- /dev/null
> +++ b/arch/arm/boot/dts/microchip/at91-sam9x75_curiosity.dts
> @@ -0,0 +1,311 @@
> +// 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;
> + i2c1 = &i2c7;
> + };
> +
> + chosen {
> + stdout-path = "serial0:115200n8";
> + };
> +
> + clocks {
> + clock-slowxtal {
> + clock-frequency = <32768>;
> + };
> +
> + clock-mainxtal {
> + clock-frequency = <24000000>;
> + };
> + };
> +
> + 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_PROG1>;
> + wakeup-source;
> + };
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_led_gpio_default>;
> +
> + led-0 {
> + label = "red";
> + gpios = <&pioC 19 GPIO_ACTIVE_HIGH>;
> + };
> +
> + led-1 {
> + label = "green";
> + gpios = <&pioC 21 GPIO_ACTIVE_HIGH>;
> + };
> +
> + led-2 {
> + label = "blue";
> + gpios = <&pioC 20 GPIO_ACTIVE_HIGH>;
> + linux,default-trigger = "heartbeat";
> + };
> + };
> +
> + memory@...00000 {
> + device_type = "memory";
> + reg = <0x20000000 0x10000000>;
> + };
> +};
> +
> +&dbgu {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_dbgu>;
> + status = "okay";
> +};
> +
> +&dma0 {
> + status = "okay";
> +};
> +
> +&ehci0 {
> + 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>;
Please double check board + SoC supports this range of voltage. Same for
the other regulator entries.
> + 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;
> + };
> + };
> + };
> + };
> + };
> +};
> +
> +&ohci0 {
> + num-ports = <3>;
> + atmel,vbus-gpio = <0
> + &pioC 27 GPIO_ACTIVE_HIGH
> + &pioB 18 GPIO_ACTIVE_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usb_default>;
> + status = "okay";
> +};
> +
> +&pinctrl {
> +
> + 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>;
> + };
> + };
> +
> + 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>;
> + };
> + };
> +
> + ohci0 {
> + pinctrl_usb_default: usb-default {
> + atmel,pins = <AT91_PIOC 27 AT91_PERIPH_GPIO AT91_PINCTRL_NONE
> + AT91_PIOB 18 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 */
> + };
> + };
> +
> + usb0 {
> + pinctrl_usba_vbus: usba-vbus {
> + atmel,pins = <AT91_PIOC 8 AT91_PERIPH_GPIO AT91_PINCTRL_NONE>;
> + };
> + };
> +}; /* 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";
> +};
> +
> +&power_management {
Make sure this entry is in dtsi. I know this is shdwc usually. I don't have
the dtsi at hand (your threading is broken).
> + debounce-delay-us = <976>;
> + status = "okay";
> +
> + input@0 {
> + reg = <0>;
> + };
> +};
> +
> +&trng {
> + status = "okay";
> +};
> +
> +&usb0 {
> + atmel,vbus-gpio = <&pioC 8 GPIO_ACTIVE_HIGH>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usba_vbus>;
> + status = "okay";
> +};
> +
> +&watchdog {
> + status = "okay";
> +};
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