[PATCH 2/2] ARM: dts: at91: sama5d29_curiosity: Add device tree for sama5d29_curiosity board
Mihai.Sain at microchip.com
Mihai.Sain at microchip.com
Wed Aug 2 05:19:35 PDT 2023
Hi Claudiu,
Please find bellow my answers.
-----Original Message-----
From: claudiu beznea <claudiu.beznea at tuxon.dev>
Sent: Wednesday, August 2, 2023 7:40 AM
To: Mihai Sain - M19926 <Mihai.Sain at microchip.com>; robh+dt at kernel.org; krzysztof.kozlowski+dt at linaro.org; conor+dt at kernel.org; Nicolas Ferre - M43238 <Nicolas.Ferre at microchip.com>; alexandre.belloni at bootlin.com; Claudiu Beznea - M18063 <Claudiu.Beznea at microchip.com>; andre.przywara at arm.com; Andrei Simion - M76677 <Andrei.Simion at microchip.com>; Jerry Ray - C33025 <Jerry.Ray at microchip.com>; devicetree at vger.kernel.org; linux-arm-kernel at lists.infradead.org; linux-kernel at vger.kernel.org
Cc: Cristian Birsan - M91496 <Cristian.Birsan at microchip.com>
Subject: Re: [PATCH 2/2] ARM: dts: at91: sama5d29_curiosity: Add device tree for sama5d29_curiosity board
[You don't often get email from claudiu.beznea at tuxon.dev. Learn why this is important at https://aka.ms/LearnAboutSenderIdentification ]
EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe
On 01.08.2023 14:11, Mihai Sain wrote:
> Add initial device tree file for sama5d29_curiosity board.
>
> Signed-off-by: Mihai Sain <mihai.sain at microchip.com>
> ---
> arch/arm/boot/dts/microchip/Makefile | 2 +
> .../dts/microchip/at91-sama5d29_curiosity.dts | 706
> ++++++++++++++++++
> 2 files changed, 708 insertions(+)
> create mode 100644
> arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
>
> diff --git a/arch/arm/boot/dts/microchip/Makefile
> b/arch/arm/boot/dts/microchip/Makefile
> index 31e03747cdf4..efde9546c8f4 100644
> --- a/arch/arm/boot/dts/microchip/Makefile
> +++ b/arch/arm/boot/dts/microchip/Makefile
> @@ -4,6 +4,7 @@ DTC_FLAGS_at91-sam9x60_curiosity := -@
> DTC_FLAGS_at91-sam9x60ek := -@ DTC_FLAGS_at91-sama5d27_som1_ek := -@
> DTC_FLAGS_at91-sama5d27_wlsom1_ek := -@
> +DTC_FLAGS_at91-sama5d29_curiosity := -@
> DTC_FLAGS_at91-sama5d2_icp := -@
> DTC_FLAGS_at91-sama5d2_ptc_ek := -@
> DTC_FLAGS_at91-sama5d2_xplained := -@ @@ -64,6 +65,7 @@
> dtb-$(CONFIG_SOC_SAM_V7) += \
> at91-nattis-2-natte-2.dtb \
> at91-sama5d27_som1_ek.dtb \
> at91-sama5d27_wlsom1_ek.dtb \
> + at91-sama5d29_curiosity.dtb \
> at91-sama5d2_icp.dtb \
> at91-sama5d2_ptc_ek.dtb \
> at91-sama5d2_xplained.dtb \
> diff --git a/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
> b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
> new file mode 100644
> index 000000000000..17af10446dac
> --- /dev/null
> +++ b/arch/arm/boot/dts/microchip/at91-sama5d29_curiosity.dts
> @@ -0,0 +1,706 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
> +/*
> + * at91-sama5d29_curiosity.dts - Device Tree file for SAMA5D29
> +Curiosity board
> + *
> + * Copyright (C) 2023 Microchip Technology Inc. and its subsidiaries
> + *
> + * Author: Mihai Sain <mihai.sain at microchip.com>
> + *
> + */
> +/dts-v1/;
> +#include "sama5d29.dtsi"
> +#include "sama5d2-pinfunc.h"
> +#include <dt-bindings/gpio/gpio.h>
> +#include <dt-bindings/input/input.h>
> +#include <dt-bindings/mfd/atmel-flexcom.h>
> +
> +/ {
> + model = "Microchip SAMA5D29 Curiosity";
> + compatible = "microchip,sama5d29-curiosity", "atmel,sama5d29",
> +"atmel,sama5d2", "atmel,sama5";
> +
> + aliases {
> + serial0 = &uart0; // debug
> + serial1 = &uart1; // RPi
> + serial2 = &uart3; // mikro BUS 2
> + serial3 = &uart4; // mikro BUS 1
> + serial4 = &uart6; // flx1 Bluetooth
> + i2c0 = &i2c0;
> + i2c1 = &i2c1;
> + };
> +
> + chosen {
> + bootargs = "console=ttyS0,115200 root=/dev/mmcblk0p2 rw rootwait";
> + stdout-path = "serial0:115200n8";
> + };
> +
> + clocks {
> + slow_xtal {
> + clock-frequency = <32768>;
> + };
> +
> + main_xtal {
> + clock-frequency = <24000000>;
> + };
> + };
> +
> + gpio-keys {
> + compatible = "gpio-keys";
> +
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_key_gpio_default>;
> +
> + button-1 {
> + label = "USER_PB";
> + gpios = <&pioA PIN_PA17 GPIO_ACTIVE_LOW>;
> + linux,code = <KEY_PROG1>;
> + wakeup-source;
> + };
> + };
> +
> + leds {
> + compatible = "gpio-leds";
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_led_gpio_default>;
> + status = "okay";
> +
> + red {
> + label = "red";
> + gpios = <&pioA PIN_PA7 GPIO_ACTIVE_HIGH>;
> + };
> +
> + green {
> + label = "green";
> + gpios = <&pioA PIN_PA8 GPIO_ACTIVE_HIGH>;
> + };
> +
> + blue {
> + label = "blue";
> + gpios = <&pioA PIN_PA9 GPIO_ACTIVE_HIGH>;
> + linux,default-trigger = "heartbeat";
> + };
> + };
> +
> + memory at 20000000 {
> + device_type = "memory";
> + reg = <0x20000000 0x20000000>;
> + };
> +
> + vdd_1v8: regulator-vqmmc {
> + compatible = "regulator-fixed";
> + regulator-name = "VDD_1V8";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + status = "okay";
No need for status = "okay", it is the default one.
I will remove the regulator in patch v2.
> + };
> +};
> +
> +&adc {
> + vddana-supply = <&vdd_3v3>;
> + vref-supply = <&vdd_3v3>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_adc_default &pinctrl_adtrg_default>;
> + status = "okay";
> +};
> +
> +&can0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_can0_default>;
> + status = "okay";
> +};
> +
> +&can1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_can1_default>;
> + status = "okay";
> +};
> +
> +&flx1 {
> + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_USART>;
> + status = "okay";
> +
> + uart6: serial at 200 {
> + pinctrl-0 = <&pinctrl_flx1_default>;
> + pinctrl-names = "default";
> + atmel,use-dma-rx;
> + atmel,use-dma-tx;
> + status = "okay";
> + };
> +};
> +
> +&flx4 { /* RPi spi */
> + atmel,flexcom-mode = <ATMEL_FLEXCOM_MODE_SPI>;
> + status = "okay";
> +
> + spi6: spi at 400 {
> + dmas = <0>, <0>;
> + cs-gpios = <&pioA PIN_PD15 GPIO_ACTIVE_LOW>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_rpi_spi &pinctrl_rpi_spi_cs0>;
> + status = "okay";
> + };
> +
> + spi7: spi at 400 {
> + dmas = <0>, <0>;
> + cs-gpios = <&pioA PIN_PD16 GPIO_ACTIVE_LOW>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_rpi_spi &pinctrl_rpi_spi_cs1>;
> + status = "okay";
> + };
Two SPIs on the same flexcom? It looks to me something is wrong here.
I will use only 1 spi node and pinctrl in patch v2.
> +};
> +
> +&i2c0 {
> + dmas = <0>, <0>;
> + pinctrl-names = "default", "gpio";
> + pinctrl-0 = <&pinctrl_i2c0_default>;
> + pinctrl-1 = <&pinctrl_i2c0_gpio>;
> + sda-gpios = <&pioA PIN_PB31 GPIO_ACTIVE_HIGH>;
> + scl-gpios = <&pioA PIN_PC0 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
> + i2c-sda-hold-time-ns = <350>;
> + status = "okay";
> +
> + mcp16502 at 5b {
> + compatible = "microchip,mcp16502";
> + reg = <0x5b>;
> + status = "okay";
> + lpm-gpios = <&pioBU 0 GPIO_ACTIVE_LOW>;
> +
> + 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-off-in-suspend;
> + regulator-mode = <4>;
> + };
> + };
> +
> + vddio_ddr: VDD_DDR {
> + regulator-name = "VDD_DDR";
> + regulator-min-microvolt = <1200000>;
> + regulator-max-microvolt = <1200000>;
> + regulator-initial-mode = <2>;
> + regulator-allowed-modes = <2>, <4>;
> + regulator-always-on;
> +
> + regulator-state-standby {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <1200000>;
> + regulator-changeable-in-suspend;
> + regulator-mode = <4>;
> + };
> +
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <1200000>;
> + regulator-changeable-in-suspend;
> + regulator-mode = <4>;
> + };
> + };
> +
> + vdd_core: VDD_CORE {
> + regulator-name = "VDD_CORE";
> + regulator-min-microvolt = <1250000>;
> + regulator-max-microvolt = <1250000>;
> + 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-off-in-suspend;
> + regulator-mode = <4>;
> + };
> + };
> +
> + vdd_ddr: VDD_OTHER {
> + regulator-name = "VDD_OTHER";
> + regulator-min-microvolt = <1800000>;
> + regulator-max-microvolt = <1800000>;
> + regulator-initial-mode = <2>;
> + regulator-allowed-modes = <2>, <4>;
> + regulator-always-on;
> +
> + regulator-state-standby {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <1800000>;
> + regulator-changeable-in-suspend;
> + regulator-mode = <4>;
> + };
> +
> + regulator-state-mem {
> + regulator-on-in-suspend;
> + regulator-suspend-microvolt = <1800000>;
> + regulator-changeable-in-suspend;
> + regulator-mode = <4>;
> + };
> + };
> +
> + LDO1 {
> + regulator-name = "LDO1";
> + regulator-min-microvolt = <2500000>;
> + regulator-max-microvolt = <2500000>;
> + regulator-always-on;
> +
> + regulator-state-standby {
> + regulator-on-in-suspend;
> + };
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> +
> + LDO2 {
> + regulator-name = "LDO2";
> + regulator-min-microvolt = <3300000>;
> + regulator-max-microvolt = <3300000>;
> + regulator-always-on;
> +
> + regulator-state-standby {
> + regulator-on-in-suspend;
> + };
> +
> + regulator-state-mem {
> + regulator-off-in-suspend;
> + };
> + };
> + };
> + };
> +};
> +
> +&i2c1 {
> + dmas = <0>, <0>;
> + pinctrl-names = "default", "gpio";
> + pinctrl-0 = <&pinctrl_i2c1_default>;
> + i2c-analog-filter;
> + i2c-digital-filter;
> + i2c-digital-filter-width-ns = <35>;
> + pinctrl-1 = <&pinctrl_i2c1_gpio>;
Keep pinctrl-X grouped together.
Sure, I will update.
> + sda-gpios = <&pioA PIN_PD4 GPIO_ACTIVE_HIGH>;
> + scl-gpios = <&pioA PIN_PD5 (GPIO_ACTIVE_HIGH | GPIO_OPEN_DRAIN)>;
> + status = "okay";
> +};
> +
> +&macb0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_macb0_default &pinctrl_macb0_phy_irq>;
> + #address-cells = <1>;
> + #size-cells = <0>;
> + phy-mode = "rmii";
> + status = "disabled";
Should any phy/mdio container be placed here? Also, any reason this node is disabled?
The board has no phy.
We will add external phy boards to macb interface and they will be present in dt-overlay.
> +};
> +
> +&pioA {
> + pinctrl_adc_default: adc_default {
> + pinmux = <PIN_PD25__GPIO>,
> + <PIN_PD26__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_adtrg_default: adtrg_default {
> + pinmux = <PIN_PD31__ADTRG>;
> + bias-pull-up;
> + };
> +
> + pinctrl_rpi_spi: rpi_spi {
> + pinmux = <PIN_PD12__FLEXCOM4_IO0>,
> + <PIN_PD13__FLEXCOM4_IO1>,
> + <PIN_PD14__FLEXCOM4_IO2>;
> + bias-disable;
> + };
> +
> + pinctrl_rpi_spi_cs0: rpi_spi_cs0 {
> + pinmux = <PIN_PD15__FLEXCOM4_IO3>;
> + bias-disable;
> + };
> +
> + pinctrl_rpi_spi_cs1: rpi_spi_cs1 {
> + pinmux = <PIN_PD16__FLEXCOM4_IO4>;
> + bias-disable;
> + };
> +
> + pinctrl_spi1_default: spi1_default {
> + pinmux = <PIN_PC1__SPI1_SPCK>,
> + <PIN_PC2__SPI1_MOSI>,
> + <PIN_PC3__SPI1_MISO>;
> + bias-disable;
> + };
> +
> + pinctrl_spi1_cs: spi1_cs {
> + pinmux = <PIN_PC4__SPI1_NPCS0>,
> + <PIN_PC5__SPI1_NPCS1>,
> + <PIN_PC6__SPI1_NPCS2>,
> + <PIN_PC7__SPI1_NPCS3>;
> + bias-disable;
> + };
> +
> + pinctrl_rpi_uart: rpi_uart {
> + pinmux = <PIN_PD2__URXD1>,
> + <PIN_PD3__UTXD1>;
> + bias-disable;
> + };
> +
> + pinctrl_debug_uart: debug_uart {
> + pinmux = <PIN_PB26__URXD0>,
> + <PIN_PB27__UTXD0>;
> + bias-disable;
> + };
> +
> + pinctrl_can0_default: can0_default {
> + pinmux = <PIN_PC10__CANTX0>,
> + <PIN_PC11__CANRX0>;
> + bias-disable;
> + };
> +
> + pinctrl_can1_default: can1_default {
> + pinmux = <PIN_PC26__CANTX1>,
> + <PIN_PC27__CANRX1>;
> + bias-disable;
> + };
> +
> + pinctrl_i2c0_default: i2c0_default {
> + pinmux = <PIN_PB31__TWD0>,
> + <PIN_PC0__TWCK0>;
> + bias-disable;
> + };
> +
> + pinctrl_i2c0_gpio: i2c0_gpio {
> + pinmux = <PIN_PB31__GPIO>,
> + <PIN_PC0__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_i2c1_default: i2c1_default {
> + pinmux = <PIN_PD4__TWD1>,
> + <PIN_PD5__TWCK1>;
> + bias-disable;
> + };
> +
> + pinctrl_i2c1_gpio: i2c1_gpio {
> + pinmux = <PIN_PD4__GPIO>,
> + <PIN_PD5__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_key_gpio_default: key_gpio_default {
> + pinmux = <PIN_PA17__GPIO>;
> + bias-pull-up;
> + };
> +
> + pinctrl_led_gpio_default: led_gpio_default {
> + pinmux = <PIN_PA7__GPIO>,
> + <PIN_PA8__GPIO>,
> + <PIN_PA9__GPIO>;
> + bias-pull-up;
> + };
> +
> + pinctrl_qspi1_default: qspi1_default {
> + pinmux = <PIN_PB5__QSPI1_SCK>,
> + <PIN_PB6__QSPI1_CS>,
> + <PIN_PB7__QSPI1_IO0>,
> + <PIN_PB8__QSPI1_IO1>,
> + <PIN_PB9__QSPI1_IO2>,
> + <PIN_PB10__QSPI1_IO3>;
> + bias-disable;
> + };
> +
> + pinctrl_sdmmc0_default: sdmmc0_default {
> + pinmux = <PIN_PA0__SDMMC0_CK>,
> + <PIN_PA1__SDMMC0_CMD>,
> + <PIN_PA2__SDMMC0_DAT0>,
> + <PIN_PA3__SDMMC0_DAT1>,
> + <PIN_PA4__SDMMC0_DAT2>,
> + <PIN_PA5__SDMMC0_DAT3>,
> + <PIN_PA11__SDMMC0_VDDSEL>,
> + <PIN_PA13__SDMMC0_CD>;
> + bias-disable;
> + };
> +
> + pinctrl_sdmmc1_default: sdmmc1_default {
> + pinmux = <PIN_PA18__SDMMC1_DAT0>,
> + <PIN_PA19__SDMMC1_DAT1>,
> + <PIN_PA20__SDMMC1_DAT2>,
> + <PIN_PA21__SDMMC1_DAT3>,
> + <PIN_PA22__SDMMC1_CK>,
> + <PIN_PA28__SDMMC1_CMD>,
> + <PIN_PA30__SDMMC1_CD>;
> + bias-disable;
> + };
> +
These starting here:
> + pinctrl_mikrobus1_an: mikrobus1_an {
> + pinmux = <PIN_PD25__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus1_rst: mikrobus1_rst {
> + pinmux = <PIN_PA16__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus1_spi_cs: mikrobus1_spi_cs {
> + pinmux = <PIN_PC4__SPI1_NPCS0>;
> + bias-disable;
> + };
> +
> + pinctrl_mikrobus1_spi: mikrobus1_spi {
> + pinmux = <PIN_PC1__SPI1_SPCK>,
> + <PIN_PC2__SPI1_MOSI>,
> + <PIN_PC3__SPI1_MISO>;
> + bias-disable;
> + };
> +
ending here are not used. Same on mikrobus2
I will remove them in patch v2.
> + pinctrl_mikrobus1_pwm: mikrobus1_pwm {
> + pinmux = <PIN_PA31__PWML0>;
> + bias-disable;
> + };
pinctrl_mikrobus1_pwm is used on pwm0 node;
> +
> + pinctrl_mikrobus1_int: mikrobus1_int {
> + pinmux = <PIN_PB2__GPIO>;
> + bias-disable;
> + };
I will remove pinctrl_mikrobus1_int;
> +
> + pinctrl_mikrobus1_uart: mikrobus1_uart {
> + pinmux = <PIN_PB3__URXD4>,
> + <PIN_PB4__UTXD4>;
> + bias-disable;
> + };
Not used
> +
> + pinctrl_mikrobus2_an: mikrobus2_an {
> + pinmux = <PIN_PD26__GPIO>;
> + bias-disable;
> + };
I will remove pinctrl_mikrobus2_an;
> +
> + pinctrl_mikrobus2_rst: mikrobus2_rst {
> + pinmux = <PIN_PA16__GPIO>;
> + bias-disable;
> + };
I will remove pinctrl_mikrobus2_rst;
> +
> + pinctrl_mikrobus2_spi_cs: mikrobus2_spi_cs {
> + pinmux = <PIN_PC5__SPI1_NPCS1>;
> + bias-disable;
> + };
I will remove pinctrl_mikrobus2_spi_cs;
> +
> + pinctrl_mikrobus2_spi: mikrobus2_spi {
> + pinmux = <PIN_PC1__SPI1_SPCK>,
> + <PIN_PC2__SPI1_MOSI>,
> + <PIN_PC3__SPI1_MISO>;
> + bias-disable;
> + };
I will remove pinctrl_mikrobus2_spi;
> +
> + pinctrl_mikrobus2_pwm: mikrobus2_pwm {
> + pinmux = <PIN_PB0__PWMH1>;
> + bias-disable;
> + };
pinctrl_mikrobus2_pwm is used on pwm0 node;
> +
> + pinctrl_mikrobus2_int: mikrobus2_int {
> + pinmux = <PIN_PB1__GPIO>;
> + bias-disable;
> + };
I will remove pinctrl_mikrobus2_int;
> +
> + pinctrl_mikrobus2_uart: mikrobus2_uart {
> + pinmux = <PIN_PB11__URXD3>,
> + <PIN_PB12__UTXD3>;
> + bias-disable;
> + };
> +
> + pinctrl_usb_default: usb_default {
> + pinmux = <PIN_PA6__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_usba_vbus: usba_vbus {
> + pinmux = <PIN_PB13__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_macb0_default: macb0_default {
> + pinmux = <PIN_PB14__GTXCK>,
> + <PIN_PB15__GTXEN>,
> + <PIN_PB16__GRXDV>,
> + <PIN_PB17__GRXER>,
> + <PIN_PB18__GRX0>,
> + <PIN_PB19__GRX1>,
> + <PIN_PB20__GTX0>,
> + <PIN_PB21__GTX1>,
> + <PIN_PB22__GMDC>,
> + <PIN_PB23__GMDIO>;
> + bias-disable;
> + };
> +
> + pinctrl_macb0_phy_irq: macb0_phy_irq {
> + pinmux = <PIN_PB24__GPIO>;
> + bias-disable;
> + };
> +
> + pinctrl_flx1_default: flx1_default {
> + pinmux = <PIN_PA24__FLEXCOM1_IO0>,
> + <PIN_PA23__FLEXCOM1_IO1>,
> + <PIN_PA25__FLEXCOM1_IO3>,
> + <PIN_PA26__FLEXCOM1_IO4>;
> + bias-disable;
> + };
> +};
> +
> +&pwm0 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_mikrobus1_pwm &pinctrl_mikrobus2_pwm>;
> + status = "okay";
> +};
> +
> +&qspi1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_qspi1_default>;
> + status = "okay";
> +
> + flash at 0 {
> + #address-cells = <1>;
> + #size-cells = <1>;
> + compatible = "jedec,spi-nor";
> + reg = <0>;
> + spi-max-frequency = <80000000>;
> + spi-tx-bus-width = <4>;
> + spi-rx-bus-width = <4>;
> + m25p,fast-read;
> + label = "atmel_qspi1";
> + status = "okay";
> +
> + at91bootstrap at 0 {
> + label = "at91bootstrap";
> + reg = <0x0 0x40000>;
> + };
> +
> + bootloader at 40000 {
> + label = "bootloader";
> + reg = <0x40000 0xc0000>;
> + };
> +
> + bootloaderenvred at 100000 {
> + label = "bootloader env redundant";
> + reg = <0x100000 0x40000>;
> + };
> +
> + bootloaderenv at 140000 {
> + label = "bootloader env";
> + reg = <0x140000 0x40000>;
> + };
> +
> + dtb at 180000 {
> + label = "device tree";
> + reg = <0x180000 0x80000>;
> + };
> +
> + kernel at 200000 {
> + label = "kernel";
> + reg = <0x200000 0x600000>;
> + };
> + };
> +};
> +
> +&sdmmc0 {
> + bus-width = <4>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_sdmmc0_default>;
> + vmmc-supply = <&vdd_3v3>;
> + vqmmc-supply = <&vdd_1v8>;
> + status = "okay";
> +};
> +
> +&sdmmc1 {
> + bus-width = <4>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_sdmmc1_default>;
> + vqmmc-supply = <&vdd_3v3>;
> + vmmc-supply = <&vdd_3v3>;
> + status = "okay";
> +};
> +
> +&shutdown_controller {
> + debounce-delay-us = <976>;
> + atmel,wakeup-rtc-timer;
> +
> + input at 0 {
> + reg = <0>;
> + };
> +};
> +
> +&spi1 {
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_spi1_default &pinctrl_spi1_cs>;
> + status = "okay";
> +};
> +
> +&tcb0 {
> + timer0: timer at 0 {
> + compatible = "atmel,tcb-timer";
> + reg = <0>;
> + };
> +
> + timer1: timer at 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>;
> + pinctrl-names = "default";
> + pinctrl-0 = <&pinctrl_usb_default>;
> + status = "okay";
> +};
> +
> +&watchdog {
> + status = "okay";
> +};
More information about the linux-arm-kernel
mailing list