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Message-ID: <20250912-am62lx-v6-4-29d5a6c60512@ti.com>
Date: Fri, 12 Sep 2025 10:40:43 -0500
From: Bryan Brattlof <bb@...com>
To: Nishanth Menon <nm@...com>, Vignesh Raghavendra <vigneshr@...com>,
Andrew
Davis <afd@...com>, Tero Kristo <kristo@...nel.org>,
Rob Herring
<robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Conor Dooley
<conor+dt@...nel.org>,
Linus Walleij <linus.walleij@...aro.org>,
Tony
Lindgren <tony@...mide.com>
CC: <linux-arm-kernel@...ts.infradead.org>, <devicetree@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, Sascha Hauer <s.hauer@...gutronix.de>,
<linux-gpio@...r.kernel.org>, Bryan Brattlof <bb@...com>
Subject: [PATCH v6 4/4] arm64: dts: ti: k3-am62l: add initial reference
board file
From: Vignesh Raghavendra <vigneshr@...com>
Add the initial board file for the AM62L3's Evaluation Module.
Signed-off-by: Vignesh Raghavendra <vigneshr@...com>
Signed-off-by: Bryan Brattlof <bb@...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/Makefile | 3 +
arch/arm64/boot/dts/ti/k3-am62l3-evm.dts | 345 +++++++++++++++++++++++++++++++
2 files changed, 348 insertions(+)
diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index aad9177930e6fc8ade9432a9487e55b53d1e4763..a05cc096b6716e2ab245a8e26ad1f5c3a3142632 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -36,6 +36,9 @@ dtb-$(CONFIG_ARCH_K3) += k3-am62a7-phyboard-lyra-rdk.dtb
# Boards with AM62Dx SoC
dtb-$(CONFIG_ARCH_K3) += k3-am62d2-evm.dtb
+# Boards with AM62Lx SoCs
+dtb-$(CONFIG_ARCH_K3) += k3-am62l3-evm.dtb
+
# Boards with AM62Px SoC
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-sk.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am62p5-verdin-nonwifi-dahlia.dtb
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 0000000000000000000000000000000000000000..1df76844c1900d4829ee5d5444b129e72b479390
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am62l3-evm.dts
@@ -0,0 +1,345 @@
+// 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 <dt-bindings/net/ti-dp83867.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;
+ };
+
+ memory@...00000 {
+ reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
+ device_type = "memory";
+ bootph-all;
+ };
+
+ gpio_keys: gpio-keys {
+ compatible = "gpio-keys";
+ autorepeat;
+ pinctrl-names = "default";
+ pinctrl-0 = <&usr_button_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";
+ };
+ };
+
+ vmain_pd: regulator-0 {
+ /* TPS65988 PD CONTROLLER OUTPUT */
+ compatible = "regulator-fixed";
+ regulator-name = "vmain_pd";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ regulator-always-on;
+ regulator-boot-on;
+ bootph-all;
+ };
+
+ 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;
+ };
+
+ vdd_mmc1: regulator-2 {
+ /* TPS22918DBVR */
+ compatible = "regulator-fixed";
+ regulator-name = "vdd_mmc1";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-boot-on;
+ enable-active-high;
+ vin-supply = <&vcc_3v3_sys>;
+ gpio = <&exp1 3 GPIO_ACTIVE_HIGH>;
+ 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;
+ };
+
+};
+
+&gpio0 {
+ status = "okay";
+ bootph-all;
+};
+
+&i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c0_pins_default>;
+ clock-frequency = <400000>;
+
+ eeprom@51 {
+ /* AT24C512C-MAHM-T or M24512-DFMC6TG */
+ compatible = "atmel,24c512";
+ reg = <0x51>;
+ };
+};
+
+&i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c1_pins_default>;
+ clock-frequency = <100000>;
+ status = "okay";
+
+ exp1: gpio@22 {
+ compatible = "ti,tca6424";
+ reg = <0x22>;
+ gpio-controller;
+ #gpio-cells = <2>;
+ gpio-line-names = "", "",
+ "UART1_FET_SEL", "MMC1_SD_EN",
+ "VPP_LDO_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-names = "default";
+ pinctrl-0 = <&gpio0_ioexp_intr_pins_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;
+ };
+
+};
+
+&i2c2 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&i2c2_pins_default>;
+ clock-frequency = <400000>;
+ status = "okay";
+
+ typec_pd0: tps658x@3f {
+ compatible = "ti,tps6598x";
+ reg = <0x3f>;
+
+ connector {
+ compatible = "usb-c-connector";
+ label = "USB-C";
+ self-powered;
+ data-role = "dual";
+ power-role = "sink";
+
+ port {
+ usb_con_hs: endpoint {
+ remote-endpoint = <&usb0_hs_ep>;
+ };
+ };
+ };
+ };
+};
+
+&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 */
+ >;
+ bootph-all;
+ };
+
+ i2c2_pins_default: i2c2-default-pins {
+ pinctrl-single,pins = <
+ AM62LX_IOPAD(0x01dc, PIN_INPUT_PULLUP, 0) /* (B8) I2C2_SCL */
+ AM62LX_IOPAD(0x01e0, PIN_INPUT_PULLUP, 0) /* (D8) I2C2_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;
+ };
+
+ 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_button_pins_default: usr-button-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-names = "default";
+ pinctrl-0 = <&mmc0_pins_default>;
+ non-removable;
+ status = "okay";
+ bootph-all;
+};
+
+&sdhci1 {
+ /* SD/MMC */
+ pinctrl-names = "default";
+ pinctrl-0 = <&mmc1_pins_default>;
+ vmmc-supply = <&vdd_mmc1>;
+ disable-wp;
+ status = "okay";
+ bootph-all;
+};
+
+&uart0 {
+ pinctrl-0 = <&uart0_pins_default>;
+ pinctrl-names = "default";
+ status = "okay";
+ bootph-all;
+};
+
+&usbss0 {
+ status = "okay";
+ ti,vbus-divider;
+};
+
+&usb0 {
+ usb-role-switch;
+
+ port {
+ usb0_hs_ep: endpoint {
+ remote-endpoint = <&usb_con_hs>;
+ };
+ };
+};
+
+&usbss1 {
+ status = "okay";
+ ti,vbus-divider;
+};
+
+&usb1 {
+ dr-mode = "host";
+ pinctrl-names = "default";
+ pinctrl-0 = <&usb1_default_pins>;
+};
--
2.50.1
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