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linux-loongson/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
Robert Nelson 92d8c028aa arm64: dts: ti: Add k3-am62-pocketbeagle2 
BeagleBoard.org PocketBeagle 2 is an upgraded version of the popular
PocketBeagle. It is based on Texas Instruments AM6232 or AM6254 SoC.
Its dual or quad A53 cores can provide higher performance than classic
PocketBeagle. The new design comes with pre-soldered headers, a
3-pin JST-SH 1.00mm UART debug port, a USB-C port, Texas Instruments
MSPM0L1105 Cortex-M0+ MCU for ADC, 512MB RAM, and a LiPo Battery
charger.

MSPM0L1105 firmware source:
https://openbeagle.org/pocketbeagle/mspm0-adc-eeprom
* EEPROM 24c32 emulation
* ADC ad7291 emulation

https://www.beagleboard.org/boards/pocketbeagle-2
https://openbeagle.org/pocketbeagle/pocketbeagle-2

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
Tested-by: Dhruva Gole <d-gole@ti.com>
Reviewed-by: Bryan Brattlof <bb@ti.com>
Reviewed-by: Dhruva Gole <d-gole@ti.com>
Link: https://lore.kernel.org/r/20250415225940.3899486-2-robertcnelson@gmail.com
Signed-off-by: Nishanth Menon <nm@ti.com>
2025-04-18 13:30:03 -05:00

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// SPDX-License-Identifier: GPL-2.0-only OR MIT
/*
* https://www.beagleboard.org/boards/pocketbeagle-2
*
* Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
* Copyright (C) 2025 Robert Nelson, BeagleBoard.org Foundation
*/
/dts-v1/;
#include <dt-bindings/leds/common.h>
#include <dt-bindings/gpio/gpio.h>
#include <dt-bindings/input/input.h>
#include "k3-am625.dtsi"
/ {
compatible = "beagle,am62-pocketbeagle2", "ti,am625";
model = "BeagleBoard.org PocketBeagle2";
aliases {
serial0 = &wkup_uart0;
serial1 = &main_uart1;
serial2 = &main_uart6;
serial3 = &main_uart0;
mmc1 = &sdhci1;
usb0 = &usb0;
usb1 = &usb1;
i2c0 = &main_i2c0;
i2c2 = &main_i2c2;
i2c3 = &wkup_i2c0;
};
chosen {
stdout-path = &main_uart6;
};
memory@80000000 {
/* 512MB RAM */
reg = <0x00000000 0x80000000 0x00000000 0x20000000>;
device_type = "memory";
bootph-pre-ram;
};
reserved_memory: reserved-memory {
#address-cells = <2>;
#size-cells = <2>;
ranges;
/* global cma region */
linux,cma {
compatible = "shared-dma-pool";
reusable;
size = <0x00 0x8000000>;
linux,cma-default;
};
mcu_m4fss_dma_memory_region: m4f-dma-memory@9cb00000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9cb00000 0x00 0x100000>;
no-map;
};
mcu_m4fss_memory_region: m4f-memory@9cc00000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9cc00000 0x00 0xe00000>;
no-map;
};
secure_tfa_ddr: tfa@9e780000 {
reg = <0x00 0x9e780000 0x00 0x80000>;
alignment = <0x1000>;
no-map;
};
secure_ddr: optee@9e800000 {
reg = <0x00 0x9e800000 0x00 0x01800000>;
alignment = <0x1000>;
no-map;
};
wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@9db00000 {
compatible = "shared-dma-pool";
reg = <0x00 0x9db00000 0x00 0xc00000>;
no-map;
};
};
vsys_5v0: regulator-1 {
compatible = "regulator-fixed";
regulator-name = "vsys_5v0";
regulator-min-microvolt = <5000000>;
regulator-max-microvolt = <5000000>;
regulator-always-on;
regulator-boot-on;
bootph-all;
};
vdd_3v3: regulator-2 {
compatible = "regulator-fixed";
regulator-name = "vdd_3v3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
vin-supply = <&vsys_5v0>;
regulator-always-on;
regulator-boot-on;
bootph-all;
};
vdd_mmc1: regulator-3 {
compatible = "regulator-fixed";
regulator-name = "vdd_mmc1";
pinctrl-names = "default";
pinctrl-0 = <&vdd_3v3_sd_pins_default>;
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
enable-active-high;
regulator-always-on;
vin-supply = <&vdd_3v3>;
gpio = <&main_gpio0 0 GPIO_ACTIVE_HIGH>;
bootph-all;
};
vdd_sd_dv: regulator-4 {
compatible = "regulator-gpio";
regulator-name = "sd_hs200_switch";
pinctrl-names = "default";
pinctrl-0 = <&vdd_sd_dv_pins_default>;
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
vin-supply = <&vdd_3v3>;
gpios = <&main_gpio1 49 GPIO_ACTIVE_HIGH>;
states = <1800000 0x0>,
<3300000 0x1>;
bootph-all;
};
adc_vref: regulator-5 {
compatible = "regulator-fixed";
regulator-name = "default";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-boot-on;
};
leds {
compatible = "gpio-leds";
pinctrl-names = "default";
pinctrl-0 = <&led_pins_default>;
bootph-all;
led-1 {
function = LED_FUNCTION_HEARTBEAT;
color = <LED_COLOR_ID_GREEN>;
linux,default-trigger = "heartbeat";
gpios = <&main_gpio0 6 GPIO_ACTIVE_HIGH>;
default-state = "on";
bootph-all;
};
led-2 {
function = LED_FUNCTION_DISK_ACTIVITY;
color = <LED_COLOR_ID_GREEN>;
linux,default-trigger = "mmc1";
gpios = <&main_gpio0 5 GPIO_ACTIVE_HIGH>;
default-state = "on";
bootph-all;
};
led-3 {
function = LED_FUNCTION_INDICATOR;
color = <LED_COLOR_ID_GREEN>;
gpios = <&main_gpio0 4 GPIO_ACTIVE_HIGH>;
default-state = "off";
bootph-all;
};
led-4 {
function = LED_FUNCTION_INDICATOR;
color = <LED_COLOR_ID_GREEN>;
gpios = <&main_gpio0 3 GPIO_ACTIVE_HIGH>;
default-state = "off";
bootph-all;
};
};
};
&main_pmx0 {
led_pins_default: led-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x000c, PIN_OUTPUT, 7) /* (E25) OSPI0_D0.GPIO0_3 */
AM62X_IOPAD(0x0010, PIN_OUTPUT, 7) /* (G24) OSPI0_D1.GPIO0_4 */
AM62X_IOPAD(0x0014, PIN_OUTPUT, 7) /* (F25) OSPI0_D2.GPIO0_5 */
AM62X_IOPAD(0x0018, PIN_OUTPUT, 7) /* (F24) OSPI0_D3.GPIO0_6 */
>;
bootph-all;
};
main_i2c0_pins_default: main-i2c0-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x01e0, PIN_INPUT_PULLUP, 0) /* (B16) I2C0_SCL */
AM62X_IOPAD(0x01e4, PIN_INPUT_PULLUP, 0) /* (A16) I2C0_SDA */
>;
bootph-all;
};
main_i2c2_pins_default: main-i2c2-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x00b0, PIN_INPUT_PULLUP, 1) /* (K22) GPMC0_CSn2.I2C2_SCL */
AM62X_IOPAD(0x00b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */
>;
bootph-all;
};
main_uart0_pins_default: main-uart0-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x1c8, PIN_INPUT, 0) /* (D14/A13) UART0_RXD */
AM62X_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (E14/E11) UART0_TXD */
>;
bootph-all;
};
main_uart1_pins_default: main-uart1-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x194, PIN_INPUT, 2) /* (B19/B18) MCASP0_AXR3.UART1_CTSn */
AM62X_IOPAD(0x198, PIN_OUTPUT, 2) /* (A19/B17) MCASP0_AXR2.UART1_RTSn */
AM62X_IOPAD(0x1ac, PIN_INPUT, 2) /* (E19/D15) MCASP0_AFSR.UART1_RXD */
AM62X_IOPAD(0x1b0, PIN_OUTPUT, 2) /* (A20/D16) MCASP0_ACLKR.UART1_TXD */
>;
bootph-all;
};
main_uart6_pins_default: main-uart6-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x001c, PIN_INPUT, 3) /* (J23) OSPI0_D4.UART6_RXD */
AM62X_IOPAD(0x0020, PIN_OUTPUT, 3) /* (J25) OSPI0_D5.UART6_TXD */
>;
};
main_mmc1_pins_default: main-mmc1-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x23c, PIN_INPUT, 0) /* (A21/C18) MMC1_CMD */
AM62X_IOPAD(0x234, PIN_INPUT, 0) /* (B22/A20) MMC1_CLK */
AM62X_IOPAD(0x230, PIN_INPUT, 0) /* (A22/A19) MMC1_DAT0 */
AM62X_IOPAD(0x22c, PIN_INPUT, 0) /* (B21/B19) MMC1_DAT1 */
AM62X_IOPAD(0x228, PIN_INPUT, 0) /* (C21/B20) MMC1_DAT2 */
AM62X_IOPAD(0x224, PIN_INPUT, 0) /* (D22/C19) MMC1_DAT3 */
AM62X_IOPAD(0x240, PIN_INPUT, 7) /* (D17/C15) MMC1_SDCD.GPIO1_48 */
>;
bootph-all;
};
vdd_sd_dv_pins_default: vdd-sd-dv-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x0244, PIN_OUTPUT, 7) /* (P25) GPMC0_CLK.GPIO1_49 */
>;
bootph-all;
};
pmic_irq_pins_default: pmic-irq-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x01f4, PIN_INPUT_PULLUP, 0) /* (D16) EXTINTn */
>;
bootph-all;
};
vdd_3v3_sd_pins_default: vdd-3v3-sd-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x0000, PIN_OUTPUT, 7) /* (H24) OSPI0_CLK.GPIO0_0 */
>;
bootph-all;
};
usb1_pins_default: usb1-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x0258, PIN_INPUT, 0) /* (F18) USB1_DRVVBUS */
>;
bootph-all;
};
epwm2_pins_default: epwm2-default-pins {
pinctrl-single,pins = <
AM62X_IOPAD(0x01e8, PIN_OUTPUT, 8) /* (B17) I2C1_SCL.EHRPWM2_A */
>;
};
};
&epwm2 {
status = "okay";
pinctrl-names = "default";
pinctrl-0 = <&epwm2_pins_default>;
};
&mailbox0_cluster0 {
mbox_m4_0: mbox-m4-0 {
ti,mbox-rx = <0 0 0>;
ti,mbox-tx = <1 0 0>;
};
};
&main_uart0 {
pinctrl-names = "default";
pinctrl-0 = <&main_uart0_pins_default>;
bootph-all;
status = "okay";
};
&main_uart1 {
pinctrl-names = "default";
pinctrl-0 = <&main_uart1_pins_default>;
bootph-pre-ram;
status = "reserved";
};
&main_uart6 {
pinctrl-names = "default";
pinctrl-0 = <&main_uart6_pins_default>;
bootph-all;
status = "okay";
};
&main_i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&main_i2c0_pins_default>;
clock-frequency = <400000>;
bootph-all;
status = "okay";
ad7291: adc@20 {
/* Emulated with MSPM0L1105 */
compatible = "adi,ad7291";
reg = <0x20>;
vref-supply = <&adc_vref>;
};
eeprom: eeprom@50 {
/* Emulated with MSPM0L1105 */
compatible = "atmel,24c32";
reg = <0x50>;
};
};
&main_i2c2 {
pinctrl-names = "default";
pinctrl-0 = <&main_i2c2_pins_default>;
clock-frequency = <400000>;
bootph-all;
status = "okay";
};
&mcu_m4fss {
mboxes = <&mailbox0_cluster0 &mbox_m4_0>;
memory-region = <&mcu_m4fss_dma_memory_region>,
<&mcu_m4fss_memory_region>;
status = "okay";
};
&mcu_pmx0 {
wkup_uart0_pins_default: wkup-uart0-default-pins {
pinctrl-single,pins = <
AM62X_MCU_IOPAD(0x02c, PIN_INPUT, 0) /* (C6/A7) WKUP_UART0_CTSn */
AM62X_MCU_IOPAD(0x030, PIN_OUTPUT, 0) /* (A4/B4) WKUP_UART0_RTSn */
AM62X_MCU_IOPAD(0x024, PIN_INPUT, 0) /* (B4/B5) WKUP_UART0_RXD */
AM62X_MCU_IOPAD(0x028, PIN_OUTPUT, 0) /* (C5/C6) WKUP_UART0_TXD */
>;
bootph-all;
};
wkup_i2c0_pins_default: wkup-i2c0-default-pins {
pinctrl-single,pins = <
AM62X_MCU_IOPAD(0x004c, PIN_INPUT_PULLUP, 0) /* (B9) WKUP_I2C0_SCL */
AM62X_MCU_IOPAD(0x0050, PIN_INPUT_PULLUP, 0) /* (A9) WKUP_I2C0_SDA */
>;
bootph-all;
};
};
&sdhci1 {
/* SD/MMC */
vmmc-supply = <&vdd_mmc1>;
vqmmc-supply = <&vdd_sd_dv>;
pinctrl-names = "default";
pinctrl-0 = <&main_mmc1_pins_default>;
disable-wp;
cd-gpios = <&main_gpio1 48 GPIO_ACTIVE_LOW>;
cd-debounce-delay-ms = <100>;
bootph-all;
ti,fails-without-test-cd;
status = "okay";
};
&usbss0 {
bootph-all;
ti,vbus-divider;
status = "okay";
};
&usb0 {
/* This is a Type-C socket, but wired as USB 2.0 */
dr_mode = "peripheral";
bootph-all;
};
&usbss1 {
ti,vbus-divider;
status = "okay";
};
&usb1 {
/*
* Default set here is compatible with original PocketBeagle,
* Expansion boards assumed this was pre-setup as host.
*/
dr_mode = "host";
pinctrl-names = "default";
pinctrl-0 = <&usb1_pins_default>;
};
&wkup_uart0 {
/* WKUP UART0 is used by Device Manager firmware */
pinctrl-names = "default";
pinctrl-0 = <&wkup_uart0_pins_default>;
bootph-all;
status = "reserved";
};
&wkup_i2c0 {
pinctrl-names = "default";
pinctrl-0 = <&wkup_i2c0_pins_default>;
clock-frequency = <100000>;
bootph-all;
status = "okay";
tps65219: pmic@30 {
compatible = "ti,tps65219";
reg = <0x30>;
buck1-supply = <&vsys_5v0>;
buck2-supply = <&vsys_5v0>;
buck3-supply = <&vsys_5v0>;
ldo1-supply = <&vdd_3v3>;
ldo2-supply = <&buck2_reg>;
ldo3-supply = <&vdd_3v3>;
ldo4-supply = <&vdd_3v3>;
pinctrl-names = "default";
pinctrl-0 = <&pmic_irq_pins_default>;
interrupt-parent = <&gic500>;
interrupts = <GIC_SPI 224 IRQ_TYPE_LEVEL_HIGH>;
interrupt-controller;
#interrupt-cells = <1>;
bootph-all;
system-power-controller;
ti,power-button;
regulators {
buck1_reg: buck1 {
regulator-name = "VDD_CORE";
regulator-min-microvolt = <850000>;
regulator-max-microvolt = <850000>;
regulator-boot-on;
regulator-always-on;
};
buck2_reg: buck2 {
regulator-name = "VDD_1V8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
buck3_reg: buck3 {
regulator-name = "VDD_1V2";
regulator-min-microvolt = <1200000>;
regulator-max-microvolt = <1200000>;
regulator-boot-on;
regulator-always-on;
};
ldo1_reg: ldo1 {
/*
* Regulator is left as is unused, vdd_sd
* is controlled via GPIO with bypass config
* as per the NVM configuration
*/
regulator-name = "VDD_SD_3V3";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-allow-bypass;
regulator-boot-on;
regulator-always-on;
};
ldo2_reg: ldo2 {
regulator-name = "VDDA_0V85";
regulator-min-microvolt = <850000>;
regulator-max-microvolt = <850000>;
regulator-boot-on;
regulator-always-on;
};
ldo3_reg: ldo3 {
regulator-name = "VDDA_1V8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-boot-on;
regulator-always-on;
};
ldo4_reg: ldo4 {
regulator-name = "VDD_2V5";
regulator-min-microvolt = <2500000>;
regulator-max-microvolt = <2500000>;
regulator-boot-on;
regulator-always-on;
};
};
};
};
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