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c21c23a0f2
Add no-1-8-v property to sdmmc0 node to keep VDDSDMMC power rail at 3.3V.
This property will stop the LDO regulator from switching to 1.8V when the
MMC core detects an UHS SD Card. VDDSDMMC power rail is used by all the
SDMMC interface pins in GPIO mode (PA0 - PA13).
On this board, PA6 is used as GPIO to enable the power switch controlling
USB Vbus for the USB Host. The change is needed to fix the PA6 voltage
level to 3.3V instead of 1.8V.
Fixes: d85c4229e9 ("ARM: dts: at91: sama5d29_curiosity: Add device tree for sama5d29_curiosity board")
Suggested-by: Mihai Sain <mihai.sain@microchip.com>
Signed-off-by: Cristian Birsan <cristian.birsan@microchip.com>
Tested-by: Andrei Simion <andrei.simion@microchip.com>
Link: https://lore.kernel.org/r/20241119160107.598411-2-cristian.birsan@microchip.com
Signed-off-by: Claudiu Beznea <claudiu.beznea@tuxon.dev>
615 lines
12 KiB
Plaintext
615 lines
12 KiB
Plaintext
// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
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/*
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* at91-sama5d29_curiosity.dts - Device Tree file for SAMA5D29 Curiosity board
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*
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* Copyright (C) 2023 Microchip Technology Inc. and its subsidiaries
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*
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* Author: Mihai Sain <mihai.sain@microchip.com>
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*
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*/
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/dts-v1/;
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#include "sama5d29.dtsi"
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#include "sama5d2-pinfunc.h"
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#include <dt-bindings/gpio/gpio.h>
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#include <dt-bindings/input/input.h>
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#include <dt-bindings/mfd/atmel-flexcom.h>
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/ {
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model = "Microchip SAMA5D29 Curiosity";
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compatible = "microchip,sama5d29-curiosity", "atmel,sama5d29", "atmel,sama5d2", "atmel,sama5";
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aliases {
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serial0 = &uart0; // debug
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serial1 = &uart1; // RPi
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serial2 = &uart3; // mikro BUS 2
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serial3 = &uart4; // mikro BUS 1
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serial4 = &uart6; // flx1 Bluetooth
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i2c0 = &i2c0;
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i2c1 = &i2c1;
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};
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chosen {
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bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
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stdout-path = "serial0:115200n8";
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};
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clocks {
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slow_xtal {
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clock-frequency = <32768>;
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};
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main_xtal {
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clock-frequency = <24000000>;
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};
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};
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gpio-keys {
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compatible = "gpio-keys";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_key_gpio_default>;
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button-1 {
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label = "USER BUTTON";
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gpios = <&pioA PIN_PA17 GPIO_ACTIVE_LOW>;
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linux,code = <KEY_PROG1>;
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wakeup-source;
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};
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};
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leds {
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compatible = "gpio-leds";
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_led_gpio_default>;
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status = "okay";
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led-red {
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label = "red";
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gpios = <&pioA PIN_PA7 GPIO_ACTIVE_HIGH>;
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};
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led-green {
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label = "green";
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gpios = <&pioA PIN_PA8 GPIO_ACTIVE_HIGH>;
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};
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led-blue {
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label = "blue";
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gpios = <&pioA PIN_PA9 GPIO_ACTIVE_HIGH>;
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linux,default-trigger = "heartbeat";
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};
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};
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memory@20000000 {
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device_type = "memory";
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reg = <0x20000000 0x20000000>;
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};
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reg_5v: regulator-5v {
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compatible = "regulator-fixed";
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regulator-name = "5V_MAIN";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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regulator-always-on;
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};
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};
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&adc {
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vddana-supply = <&vdd_3v3>;
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vref-supply = <&vdd_3v3>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_adc_default &pinctrl_adtrg_default>;
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status = "okay";
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};
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&can0 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_can0_default>;
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status = "okay";
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};
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&can1 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_can1_default>;
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status = "okay";
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};
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&flx1 {
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atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
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status = "okay";
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uart6: serial@200 {
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pinctrl-0 = <&pinctrl_flx1_default>;
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pinctrl-names = "default";
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atmel,use-dma-rx;
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atmel,use-dma-tx;
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status = "okay";
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};
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};
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&flx4 {
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atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_SPI>;
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status = "okay";
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spi6: spi@400 {
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dmas = <0>, <0>;
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_rpi_spi>;
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status = "okay";
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};
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};
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&i2c0 {
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dmas = <0>, <0>;
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pinctrl-names = "default", "gpio";
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pinctrl-0 = <&pinctrl_i2c0_default>;
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pinctrl-1 = <&pinctrl_i2c0_gpio>;
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sda-gpios = <&pioA PIN_PB31 GPIO_ACTIVE_HIGH>;
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scl-gpios = <&pioA PIN_PC0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
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i2c-sda-hold-time-ns = <350>;
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status = "okay";
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pmic@5b {
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compatible = "microchip,mcp16502";
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reg = <0x5b>;
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lvin-supply = <®_5v>;
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pvin1-supply = <®_5v>;
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pvin2-supply = <®_5v>;
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pvin3-supply = <®_5v>;
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pvin4-supply = <®_5v>;
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status = "okay";
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lpm-gpios = <&pioBU 0 GPIO_ACTIVE_LOW>;
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regulators {
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vdd_3v3: VDD_IO {
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regulator-name = "VDD_IO";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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regulator-mode = <4>;
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};
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};
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vddio_ddr: VDD_DDR {
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regulator-name = "VDD_DDR";
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regulator-min-microvolt = <1200000>;
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regulator-max-microvolt = <1200000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-suspend-microvolt = <1200000>;
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regulator-changeable-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-suspend-microvolt = <1200000>;
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regulator-changeable-in-suspend;
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regulator-mode = <4>;
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};
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};
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vdd_core: VDD_CORE {
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regulator-name = "VDD_CORE";
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regulator-min-microvolt = <1250000>;
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regulator-max-microvolt = <1250000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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regulator-mode = <4>;
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};
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};
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vdd_ddr: VDD_OTHER {
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regulator-name = "VDD_OTHER";
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regulator-min-microvolt = <1800000>;
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regulator-max-microvolt = <1800000>;
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regulator-initial-mode = <2>;
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regulator-allowed-modes = <2>, <4>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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regulator-suspend-microvolt = <1800000>;
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regulator-changeable-in-suspend;
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regulator-mode = <4>;
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};
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regulator-state-mem {
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regulator-on-in-suspend;
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regulator-suspend-microvolt = <1800000>;
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regulator-changeable-in-suspend;
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regulator-mode = <4>;
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};
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};
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LDO1 {
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regulator-name = "LDO1";
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regulator-min-microvolt = <2500000>;
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regulator-max-microvolt = <2500000>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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};
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};
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LDO2 {
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regulator-name = "LDO2";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-always-on;
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regulator-state-standby {
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regulator-on-in-suspend;
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};
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regulator-state-mem {
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regulator-off-in-suspend;
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};
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};
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};
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};
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};
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&i2c1 {
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dmas = <0>, <0>;
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pinctrl-names = "default", "gpio";
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pinctrl-0 = <&pinctrl_i2c1_default>;
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pinctrl-1 = <&pinctrl_i2c1_gpio>;
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i2c-analog-filter;
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i2c-digital-filter;
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i2c-digital-filter-width-ns = <35>;
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sda-gpios = <&pioA PIN_PD4 GPIO_ACTIVE_HIGH>;
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scl-gpios = <&pioA PIN_PD5 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
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status = "okay";
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};
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&pioA {
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pinctrl_adc_default: adc-default {
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pinmux = <PIN_PD25__GPIO>,
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<PIN_PD26__GPIO>;
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bias-disable;
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};
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pinctrl_adtrg_default: adtrg-default {
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pinmux = <PIN_PD31__ADTRG>;
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bias-pull-up;
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};
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pinctrl_can0_default: can0-default {
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pinmux = <PIN_PC10__CANTX0>,
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<PIN_PC11__CANRX0>;
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bias-disable;
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};
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pinctrl_can1_default: can1-default {
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pinmux = <PIN_PC26__CANTX1>,
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<PIN_PC27__CANRX1>;
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bias-disable;
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};
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pinctrl_debug_uart: debug-uart {
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pinmux = <PIN_PB26__URXD0>,
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<PIN_PB27__UTXD0>;
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bias-disable;
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};
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pinctrl_flx1_default: flx1-default {
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pinmux = <PIN_PA24__FLEXCOM1_IO0>,
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<PIN_PA23__FLEXCOM1_IO1>,
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<PIN_PA25__FLEXCOM1_IO3>,
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<PIN_PA26__FLEXCOM1_IO4>;
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bias-disable;
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};
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pinctrl_i2c0_default: i2c0-default {
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pinmux = <PIN_PB31__TWD0>,
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<PIN_PC0__TWCK0>;
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bias-disable;
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};
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pinctrl_i2c0_gpio: i2c0-gpio-default {
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pinmux = <PIN_PB31__GPIO>,
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<PIN_PC0__GPIO>;
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bias-disable;
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};
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pinctrl_i2c1_default: i2c1-default {
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pinmux = <PIN_PD4__TWD1>,
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<PIN_PD5__TWCK1>;
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bias-disable;
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};
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pinctrl_i2c1_gpio: i2c1-gpio-default {
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pinmux = <PIN_PD4__GPIO>,
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<PIN_PD5__GPIO>;
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bias-disable;
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};
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pinctrl_key_gpio_default: key-gpio-default {
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pinmux = <PIN_PA17__GPIO>;
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bias-pull-up;
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};
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pinctrl_led_gpio_default: led-gpio-default {
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pinmux = <PIN_PA7__GPIO>,
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<PIN_PA8__GPIO>,
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<PIN_PA9__GPIO>;
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bias-pull-up;
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};
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pinctrl_mikrobus1_pwm: mikrobus1-pwm {
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pinmux = <PIN_PA31__PWML0>;
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bias-disable;
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};
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pinctrl_mikrobus2_pwm: mikrobus2-pwm {
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pinmux = <PIN_PB0__PWMH1>;
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bias-disable;
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};
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pinctrl_mikrobus1_uart: mikrobus1-uart {
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pinmux = <PIN_PB3__URXD4>,
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<PIN_PB4__UTXD4>;
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bias-disable;
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};
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pinctrl_mikrobus2_uart: mikrobus2-uart {
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pinmux = <PIN_PB11__URXD3>,
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<PIN_PB12__UTXD3>;
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bias-disable;
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};
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pinctrl_qspi1_default: qspi1-default {
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pinmux = <PIN_PB5__QSPI1_SCK>,
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<PIN_PB6__QSPI1_CS>,
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<PIN_PB7__QSPI1_IO0>,
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<PIN_PB8__QSPI1_IO1>,
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<PIN_PB9__QSPI1_IO2>,
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<PIN_PB10__QSPI1_IO3>;
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bias-disable;
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};
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pinctrl_rpi_spi: rpi-spi {
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pinmux = <PIN_PD12__FLEXCOM4_IO0>,
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<PIN_PD13__FLEXCOM4_IO1>,
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<PIN_PD14__FLEXCOM4_IO2>,
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<PIN_PD15__FLEXCOM4_IO3>,
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<PIN_PD16__FLEXCOM4_IO4>;
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bias-disable;
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};
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pinctrl_rpi_uart: rpi-uart {
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pinmux = <PIN_PD2__URXD1>,
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<PIN_PD3__UTXD1>;
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bias-disable;
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};
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pinctrl_sdmmc0_default: sdmmc0-default {
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pinmux = <PIN_PA0__SDMMC0_CK>,
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<PIN_PA1__SDMMC0_CMD>,
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<PIN_PA2__SDMMC0_DAT0>,
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<PIN_PA3__SDMMC0_DAT1>,
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<PIN_PA4__SDMMC0_DAT2>,
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<PIN_PA5__SDMMC0_DAT3>,
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<PIN_PA11__SDMMC0_VDDSEL>,
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<PIN_PA13__SDMMC0_CD>;
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bias-disable;
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};
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pinctrl_sdmmc1_default: sdmmc1-default {
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pinmux = <PIN_PA18__SDMMC1_DAT0>,
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<PIN_PA19__SDMMC1_DAT1>,
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<PIN_PA20__SDMMC1_DAT2>,
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<PIN_PA21__SDMMC1_DAT3>,
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<PIN_PA22__SDMMC1_CK>,
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<PIN_PA28__SDMMC1_CMD>,
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<PIN_PA30__SDMMC1_CD>;
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bias-disable;
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};
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pinctrl_spi1_default: spi1-default {
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pinmux = <PIN_PC1__SPI1_SPCK>,
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<PIN_PC2__SPI1_MOSI>,
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<PIN_PC3__SPI1_MISO>,
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<PIN_PC4__SPI1_NPCS0>,
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<PIN_PC5__SPI1_NPCS1>,
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<PIN_PC6__SPI1_NPCS2>,
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<PIN_PC7__SPI1_NPCS3>;
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bias-disable;
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};
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pinctrl_usb_default: usb-default {
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pinmux = <PIN_PA6__GPIO>;
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bias-disable;
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};
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pinctrl_usba_vbus: usba-vbus {
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pinmux = <PIN_PB13__GPIO>;
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bias-disable;
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};
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};
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&pwm0 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_mikrobus1_pwm &pinctrl_mikrobus2_pwm>;
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status = "okay";
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};
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&qspi1 {
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pinctrl-names = "default";
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pinctrl-0 = <&pinctrl_qspi1_default>;
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status = "okay";
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flash@0 {
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#address-cells = <1>;
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#size-cells = <1>;
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compatible = "jedec,spi-nor";
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reg = <0>;
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spi-max-frequency = <80000000>;
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spi-tx-bus-width = <4>;
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spi-rx-bus-width = <4>;
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m25p,fast-read;
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label = "atmel_qspi1";
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status = "okay";
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at91bootstrap@0 {
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label = "at91bootstrap";
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reg = <0x0 0x40000>;
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};
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bootloader@40000 {
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label = "bootloader";
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reg = <0x40000 0xc0000>;
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};
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bootloaderenvred@100000 {
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label = "bootloader env redundant";
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reg = <0x100000 0x40000>;
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};
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bootloaderenv@140000 {
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label = "bootloader env";
|
|
reg = <0x140000 0x40000>;
|
|
};
|
|
|
|
dtb@180000 {
|
|
label = "device tree";
|
|
reg = <0x180000 0x80000>;
|
|
};
|
|
|
|
kernel@200000 {
|
|
label = "kernel";
|
|
reg = <0x200000 0x600000>;
|
|
};
|
|
};
|
|
};
|
|
|
|
&sdmmc0 {
|
|
bus-width = <4>;
|
|
no-1-8-v;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_sdmmc0_default>;
|
|
disable-wp;
|
|
status = "okay";
|
|
};
|
|
|
|
&sdmmc1 {
|
|
bus-width = <4>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_sdmmc1_default>;
|
|
disable-wp;
|
|
status = "okay";
|
|
};
|
|
|
|
&shutdown_controller {
|
|
debounce-delay-us = <976>;
|
|
atmel,wakeup-rtc-timer;
|
|
|
|
input@0 {
|
|
reg = <0>;
|
|
};
|
|
};
|
|
|
|
&spi1 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_spi1_default>;
|
|
status = "okay";
|
|
};
|
|
|
|
&tcb0 {
|
|
timer0: timer@0 {
|
|
compatible = "atmel,tcb-timer";
|
|
reg = <0>;
|
|
};
|
|
|
|
timer1: timer@1 {
|
|
compatible = "atmel,tcb-timer";
|
|
reg = <1>;
|
|
};
|
|
};
|
|
|
|
&uart0 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_debug_uart>;
|
|
atmel,use-dma-rx;
|
|
atmel,use-dma-tx;
|
|
status = "okay";
|
|
};
|
|
|
|
&uart1 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_rpi_uart>;
|
|
atmel,use-dma-rx;
|
|
atmel,use-dma-tx;
|
|
status = "okay";
|
|
};
|
|
|
|
&uart3 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_mikrobus2_uart>;
|
|
atmel,use-dma-rx;
|
|
atmel,use-dma-tx;
|
|
status = "okay";
|
|
};
|
|
|
|
&uart4 {
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_mikrobus1_uart>;
|
|
atmel,use-dma-rx;
|
|
atmel,use-dma-tx;
|
|
status = "okay";
|
|
};
|
|
|
|
&usb0 {
|
|
atmel,vbus-gpio = <&pioA PIN_PB13 GPIO_ACTIVE_HIGH>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_usba_vbus>;
|
|
status = "okay";
|
|
};
|
|
|
|
&usb1 {
|
|
num-ports = <3>;
|
|
atmel,vbus-gpio = <0
|
|
&pioA PIN_PA6 GPIO_ACTIVE_HIGH
|
|
0>;
|
|
pinctrl-names = "default";
|
|
pinctrl-0 = <&pinctrl_usb_default>;
|
|
status = "okay";
|
|
};
|
|
|
|
&usb2 {
|
|
status = "okay";
|
|
};
|
|
|
|
&watchdog {
|
|
status = "okay";
|
|
};
|