[PATCH v5 3/3] arm64: dts: ti: k3-am62l: add initial reference board file

Bryan Brattlof
2025-05-08T03:09:30Z

From: Vignesh Raghavendra <vigneshr@ti.com>

Add the initial board file for the AM62L3's Evaluation Module.

Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
Signed-off-by: Bryan Brattlof <bb@ti.com>
---
Changes from v1:
- switched to non-direct links so TRM updates are automatic
- removed current-speed property from main_uart0
- removed empty reserved-memory{} node
- removed serial2 from aliases{} node
- corrected main_uart0 pinmux

Changes from v2:
- alphabetized phandles
- corrected macros and node names for main_uart0 pinmux node

Changes from v3:
- added and enabled more nodes that have been validated
- added link to data sheet which is now public

Changes in v4:
- Corrected Copyright year
---
arch/arm64/boot/dts/ti/k3-am62l3-evm.dts | 294 +++++++++++++++++++++++++++++++
1 file changed, 294 insertions(+)

diff --git a/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
new file mode 100644
index 0000000000000..16efb60bf3260
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
@@ -0,0 +1,294 @@
+// SPDX-License-Identifier: GPL-2.0-only or MIT
+/*
+ * Device Tree file for the AM62L3 Evaluation Module
+ * Copyright (C) 2025 Texas Instruments Incorporated - https://www.ti.com/
+ *
+ * Technical Reference Manual: https://www.ti.com/lit/pdf/sprujb4
+ * Data Sheet: https://www.ti.com/lit/pdf/sprspa1
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/input/input.h>
+#include <dt-bindings/leds/common.h>
+
+#include "k3-am62l3.dtsi"
+#include "k3-pinctrl.h"
+
+/ {
+ compatible = "ti,am62l3-evm", "ti,am62l3";
+ model = "Texas Instruments AM62L3 Evaluation Module";
+
+ chosen {
+ stdout-path = &uart0;
+ };
+
+ gpio_keys: gpio-keys {
+ compatible = "gpio-keys";
+ autorepeat;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usr_btn_pins_default>;
+
+ usr: button-usr {
+ label = "User Key";
+ linux,code = <BTN_0>;
+ gpios = <&gpio0 90 GPIO_ACTIVE_LOW>;
+ };
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&usr_led_pins_default>;
+
+ led-0 {
+ label = "am62-sk:green:heartbeat";
+ gpios = <&gpio0 123 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ function = LED_FUNCTION_HEARTBEAT;
+ default-state = "on";
+ };
+ };
+
+ memory@80000000 {
+ reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
+ device_type = "memory";
+ bootph-all;
+ };
+
+ vcc_1v8: regulator-3 {
+ /* output of TPS6282518DMQ */
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_1v8";
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
+ vin-supply = <&vcc_3v3_sys>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vcc_3v3_sys: regulator-1 {
+ /* output of LM61460-Q1 */
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_3v3_sys";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ vin-supply = <&vmain_pd>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vmain_pd: regulator-0 {
+ /* TPS65988 PD CONTROLLER OUTPUT */
+ bootph-all;
+ compatible = "regulator-fixed";
+ regulator-name = "vmain_pd";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+};
+
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins_default>;
+ clock-frequency = <400000>;
+ status = "okay";
+ bootph-all;
+
+ eeprom@51 {
+ /* AT24C512C-MAHM-T or M24512-DFMC6TG */
+ compatible = "atmel,24c512";
+ reg = <0x51>;
+ };
+};
+
+&i2c1 {
+ pinctrl-0 = <&i2c1_pins_default>;
+ pinctrl-names = "default";
+ clock-frequency = <100000>;
+ status = "okay";
+ bootph-all;
+
+ exp1: gpio@22 {
+ compatible = "ti,tca6424";
+ reg = <0x22>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "", "",
+ "UART1_FET_SEL", "MMC1_SD_EN",
+ "VPP_EN", "EXP_PS_3V3_EN",
+ "UART1_FET_BUF_EN", "",
+ "DSI_GPIO0", "DSI_GPIO1",
+ "", "BT_UART_WAKE_SOC_3V3",
+ "USB_TYPEA_OC_INDICATION", "",
+ "", "WLAN_ALERTn",
+ "HDMI_INTn", "TEST_GPIO2",
+ "MCASP0_FET_EN", "MCASP0_BUF_BT_EN",
+ "MCASP0_FET_SEL", "DSI_EDID",
+ "PD_I2C_IRQ", "IO_EXP_TEST_LED";
+
+ interrupt-parent = <&gpio0>;
+ interrupts = <91 IRQ_TYPE_EDGE_FALLING>;
+ interrupt-controller;
+ #interrupt-cells = <2>;
+
+ pinctrl-0 = <&gpio0_ioexp_intr_pins_default>;
+ pinctrl-names = "default";
+ bootph-all;
+ };
+
+ exp2: gpio@23 {
+ compatible = "ti,tca6424";
+ reg = <0x23>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "BT_EN_SOC", "VOUT0_FET_SEL0",
+ "", "",
+ "", "",
+ "", "",
+ "WL_LT_EN", "EXP_PS_5V0_EN",
+ "TP45", "TP48",
+ "TP46", "TP49",
+ "TP47", "TP50",
+ "GPIO_QSPI_NAND_RSTn", "GPIO_HDMI_RSTn",
+ "GPIO_CPSW1_RST", "GPIO_CPSW2_RST",
+ "", "GPIO_AUD_RSTn",
+ "GPIO_eMMC_RSTn", "SoC_WLAN_SDIO_RST";
+
+ bootph-all;
+ };
+};
+
+&pmx0 {
+ gpio0_ioexp_intr_pins_default: gpio0-ioexp-intr-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x01b0, PIN_INPUT, 7) /* (B12) SPI0_D1.GPIO0_91 */
+ >;
+ bootph-all;
+ };
+
+ i2c0_pins_default: i2c0-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x01cc, PIN_INPUT_PULLUP, 0) /* (B7) I2C0_SCL */
+ AM62LX_IOPAD(0x01d0, PIN_INPUT_PULLUP, 0) /* (A7) I2C0_SDA */
+ >;
+ bootph-all;
+ };
+
+ i2c1_pins_default: i2c1-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x01d4, PIN_INPUT_PULLUP, 0) /* (D7) I2C1_SCL */
+ AM62LX_IOPAD(0x01d8, PIN_INPUT_PULLUP, 0) /* (A6) I2C1_SDA */
+ >;
+ };
+
+ mmc0_pins_default: mmc0-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x0214, PIN_INPUT_PULLUP, 0) /* (D2) MMC0_CMD */
+ AM62LX_IOPAD(0x020c, PIN_OUTPUT, 0) /* (B2) MMC0_CLK */
+ AM62LX_IOPAD(0x0208, PIN_INPUT_PULLUP, 0) /* (D3) MMC0_DAT0 */
+ AM62LX_IOPAD(0x0204, PIN_INPUT_PULLUP, 0) /* (D4) MMC0_DAT1 */
+ AM62LX_IOPAD(0x0200, PIN_INPUT_PULLUP, 0) /* (C1) MMC0_DAT2 */
+ AM62LX_IOPAD(0x01fc, PIN_INPUT_PULLUP, 0) /* (C2) MMC0_DAT3 */
+ AM62LX_IOPAD(0x01f8, PIN_INPUT_PULLUP, 0) /* (C4) MMC0_DAT4 */
+ AM62LX_IOPAD(0x01f4, PIN_INPUT_PULLUP, 0) /* (B3) MMC0_DAT5 */
+ AM62LX_IOPAD(0x01f0, PIN_INPUT_PULLUP, 0) /* (A3) MMC0_DAT6 */
+ AM62LX_IOPAD(0x01ec, PIN_INPUT_PULLUP, 0) /* (B4) MMC0_DAT7 */
+ >;
+ bootph-all;
+ };
+
+ mmc1_pins_default: mmc1-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x0230, PIN_INPUT, 0) /* (Y3) MMC1_CMD */
+ AM62LX_IOPAD(0x0228, PIN_OUTPUT, 0) /* (Y2) MMC1_CLK */
+ AM62LX_IOPAD(0x0224, PIN_INPUT, 0) /* (AA1) MMC1_DAT0 */
+ AM62LX_IOPAD(0x0220, PIN_INPUT_PULLUP, 0) /* (Y4) MMC1_DAT1 */
+ AM62LX_IOPAD(0x021c, PIN_INPUT_PULLUP, 0) /* (AA2) MMC1_DAT2 */
+ AM62LX_IOPAD(0x0218, PIN_INPUT_PULLUP, 0) /* (AB2) MMC1_DAT3 */
+ AM62LX_IOPAD(0x0234, PIN_INPUT, 0) /* (B6) MMC1_SDCD */
+ >;
+ bootph-all;
+ };
+
+ uart0_pins_default: uart0-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x01b4, PIN_INPUT, 0) /* (D13) UART0_RXD */
+ AM62LX_IOPAD(0x01b8, PIN_OUTPUT, 0) /* (C13) UART0_TXD */
+ >;
+ bootph-all;
+ };
+
+ uart1_pins_default: uart1-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x0180, PIN_INPUT, 2) /* (A8) MCASP0_AXR3.UART1_CTSn */
+ AM62LX_IOPAD(0x0184, PIN_OUTPUT, 2) /* (B10) MCASP0_AXR2.UART1_RTSn */
+ AM62LX_IOPAD(0x0198, PIN_INPUT, 2) /* (C11) MCASP0_AFSR.UART1_RXD */
+ AM62LX_IOPAD(0x019c, PIN_OUTPUT, 2) /* (A12) MCASP0_ACLKR.UART1_TXD */
+ >;
+ bootph-all;
+ };
+
+ usb1_default_pins: usb1-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x0248, PIN_INPUT | PIN_DS_PULLUD_ENABLE | PIN_DS_PULL_UP, 0) /* (A5) USB1_DRVVBUS */
+ >;
+ };
+
+ usr_btn_pins_default: usr-btn-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x01ac, PIN_INPUT, 7) /* (E12) SPI0_D0.GPIO0_90 */
+ >;
+ };
+
+ usr_led_pins_default: usr-led-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x0238, PIN_OUTPUT, 7) /* (D24) MMC1_SDWP.GPIO0_123 */
+ >;
+ };
+};
+
+&sdhci0 {
+ /* eMMC */
+ pinctrl-0 = <&mmc0_pins_default>;
+ pinctrl-names = "default";
+ non-removable;
+ status = "okay";
+ bootph-all;
+};
+
+&sdhci1 {
+ /* SD/MMC */
+ pinctrl-0 = <&mmc1_pins_default>;
+ pinctrl-names = "default";
+ status = "okay";
+ bootph-all;
+};
+
+&uart0 {
+ pinctrl-0 = <&uart0_pins_default>;
+ pinctrl-names = "default";
+ status = "okay";
+ bootph-all;
+};
+
+&uart1 {
+ pinctrl-0 = <&uart1_pins_default>;
+ pinctrl-names = "default";
+ status = "okay";
+ bootph-all;
+};
+
+&usb1 {
+ pinctrl-0 = <&usb1_default_pins>;
+ pinctrl-names = "default";
+ dr_mode = "host";
+};
+
+&usbss1 {
+ ti,vbus-divider;
+ status = "okay";
+};

--
2.49.0