[PATCH v2 2/2] arm64: dts: ti: Add k3-am62-pocketbeagle2

Robert Nelson
2025-04-08T23:18:44Z

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.

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

Signed-off-by: Robert Nelson <robertcnelson@gmail.com>
CC: Rob Herring <robh@kernel.org>
CC: Krzysztof Kozlowski <krzk+dt@kernel.org>
CC: Conor Dooley <conor+dt@kernel.org>
CC: Vignesh Raghavendra <vigneshr@ti.com>
CC: Nishanth Menon <nm@ti.com>
CC: Andrew Davis <afd@ti.com>
CC: Roger Quadros <rogerq@kernel.org>
CC: Siddharth Vadapalli <s-vadapalli@ti.com>
CC: Judith Mendez <jm@ti.com>
CC: Andrei Aldea <a-aldea@ti.com>
CC: Dhruva Gole <d-gole@ti.com>
CC: Jason Kridner <jkridner@beagleboard.org>
CC: Deepak Khatri <lorforlinux@beagleboard.org>
CC: Ayush Singh <ayush@beagleboard.org>
---
Changes since v1:
- fix '_' in main-i2c2-default-pins
- aliases i2c match original pocketbeagle
- add mcu_m4fss with reseved memory and mailbox
- drop unused main_gpio0_pins_default pinmux
- drop unused main_gpio1_pins_default pinmux
- drop unused main_spi2_pins_gpio pinmux
- Reserve 128MiB of global CMA
---
arch/arm64/boot/dts/ti/Makefile | 1 +
.../boot/dts/ti/k3-am62-pocketbeagle2.dts | 528 ++++++++++++++++++
2 files changed, 529 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 03d4cecfc001..4f8fcb69a2c1 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -27,6 +27,7 @@ dtb-$(CONFIG_ARCH_K3) += k3-am625-verdin-wifi-yavia.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am62x-phyboard-lyra-gpio-fan.dtbo
dtb-$(CONFIG_ARCH_K3) += k3-am62-lp-sk.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am62-lp-sk-nand.dtbo
+dtb-$(CONFIG_ARCH_K3) += k3-am62-pocketbeagle2.dtb

# Boards with AM62Ax SoC
dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb
diff --git a/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
new file mode 100644
index 000000000000..65000ed8196f
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62-pocketbeagle2.dts
@@ -0,0 +1,528 @@
+// 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_uart3;
+ serial4 = &main_uart4;
+ serial5 = &main_uart5;
+ serial6 = &main_uart2;
+ serial7 = &main_uart0;
+ mmc0 = &sdhci0;
+ mmc1 = &sdhci1;
+ usb0 = &usb0;
+ usb1 = &usb1;
+ i2c1 = &main_i2c1;
+ 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 {
+ bootph-all;
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&led_pins_default>;
+
+ led-1 {
+ bootph-all;
+ gpios = <&main_gpio0 6 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_GREEN>;
+ linux,default-trigger = "heartbeat";
+ function = LED_FUNCTION_HEARTBEAT;
+ default-state = "on";
+ };
+
+ led-2 {
+ bootph-all;
+ gpios = <&main_gpio0 5 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_GREEN>;
+ function = LED_FUNCTION_DISK_ACTIVITY;
+ linux,default-trigger = "mmc1";
+ };
+
+ led-3 {
+ bootph-all;
+ gpios = <&main_gpio0 4 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_GREEN>;
+ };
+
+ led-4 {
+ bootph-all;
+ gpios = <&main_gpio0 3 GPIO_ACTIVE_HIGH>;
+ color = <LED_COLOR_ID_GREEN>;
+ function = LED_FUNCTION_INDICATOR;
+ default-state = "off";
+ };
+ };
+};
+
+&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 */
+ >;
+ };
+};
+
+&cpsw3g {
+ status = "disabled";
+};
+
+&cpsw_port1 {
+ status = "disabled";
+};
+
+&cpsw_port2 {
+ status = "disabled";
+};
+
+&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 {
+ compatible = "adi,ad7291";
+ reg = <0x20>;
+ vref-supply = <&adc_vref>;
+ };
+
+ eeprom: eeprom@50 {
+ 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 {
+ bootph-all;
+ dr_mode = "peripheral";
+};
+
+&usbss1 {
+ ti,vbus-divider;
+ status = "okay";
+};
+
+&usb1 {
+ 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;
+ };
+ };
+ };
+};
--
2.47.2