[PATCH 5/5] arm64: dts: ti: Add support for AM62-SK

From: Vignesh Raghavendra
Date: Tue Feb 08 2022 - 08:38:21 EST

From: Nishanth Menon <nm@xxxxxx>

AM62 StarterKit (SK) board is a low cost, small form factor board
designed for TI’s AM625 SoC. It supports the following interfaces:
* 2 GB DDR4 RAM
* x2 Gigabit Ethernet interfaces capable of working in Switch and MAC mode
* x1 HDMI Port with audio + x1 OLDI/LVDS Display interface for Dual Display
* x1 Headphone Jack
* x1 USB2.0 Hub with two Type A host and x1 USB Type-C DRP Port
* x1 UHS-1 capable µSD card slot
* 2.4/5 GHz WLAN + Bluetooth 4.2 through WL1837
* 512 Mbit OSPI flash
* x4 UART through UART-USB bridge
* XDS110 for onboard JTAG debug using USB
* Temperature sensors, user push buttons and LEDs
* 40-pin User Expansion Connector
* 24-pin header for peripherals in MCU island (I2C, UART, SPI, IO)
* 20-pin header for Programmable Realtime Unit (PRU) IO pins
* 15-pin CSI header

Add basic support for AM62-SK.

Schematics: https://www.ti.com/lit/zip/sprr448

Signed-off-by: Nishanth Menon <nm@xxxxxx>
Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx>
---
arch/arm64/boot/dts/ti/Makefile | 2 +
arch/arm64/boot/dts/ti/k3-am625-sk.dts | 206 +++++++++++++++++++++++++
2 files changed, 208 insertions(+)
create mode 100644 arch/arm64/boot/dts/ti/k3-am625-sk.dts

diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile
index 90be511bc4d0..02e5d80344d0 100644
--- a/arch/arm64/boot/dts/ti/Makefile
+++ b/arch/arm64/boot/dts/ti/Makefile
@@ -21,3 +21,5 @@ dtb-$(CONFIG_ARCH_K3) += k3-j721s2-common-proc-board.dtb

dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb
+
+dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb
diff --git a/arch/arm64/boot/dts/ti/k3-am625-sk.dts b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
new file mode 100644
index 000000000000..9a6ff601f44d
--- /dev/null
+++ b/arch/arm64/boot/dts/ti/k3-am625-sk.dts
@@ -0,0 +1,206 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * AM625 SK: https://www.ti.com/lit/zip/sprr448
+ *
+ * Copyright (C) 2021-2022 Texas Instruments Incorporated - https://www.ti.com/
+ */
+
+/dts-v1/;
+
+#include <dt-bindings/leds/common.h>
+#include <dt-bindings/gpio/gpio.h>
+#include "k3-am625.dtsi"
+
+/ {
+ compatible = "ti,am625-sk", "ti,am625";
+ model = "Texas Instruments AM625 SK";
+
+ aliases {
+ serial2 = &main_uart0;
+ };
+
+ chosen {
+ stdout-path = "serial2:115200n8";
+ bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";
+ };
+
+ memory@80000000 {
+ device_type = "memory";
+ /* 2G RAM */
+ reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
+
+ };
+
+ reserved-memory {
+ #address-cells = <2>;
+ #size-cells = <2>;
+ ranges;
+
+ secure_tfa_ddr: tfa@9e780000 {
+ reg = <0x00 0x9e780000 0x00 0x80000>;
+ alignment = <0x1000>;
+ no-map;
+ };
+
+ secure_ddr: optee@9e800000 {
+ reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
+ alignment = <0x1000>;
+ no-map;
+ };
+
+ wkup_r5fss0_core0_dma_memory_region: r5f-dma-memory@a0000000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0xa0000000 0x00 0x200000>;
+ no-map;
+ };
+ };
+
+ vmain_pd: fixed-regulator-vmain-pd {
+ /* 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;
+ };
+
+ vcc_5v0: fixedregulator-vcc5v0 {
+ /* Output of LM34936 */
+ compatible = "regulator-fixed";
+ regulator-name = "vcc_5v0";
+ regulator-min-microvolt = <5000000>;
+ regulator-max-microvolt = <5000000>;
+ vin-supply = <&vmain_pd>;
+ regulator-always-on;
+ regulator-boot-on;
+ };
+
+ vcc_3v3_sys: fixedregulator-vcc-3v3-sys {
+ /* 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;
+ };
+
+ leds {
+ compatible = "gpio-leds";
+ pinctrl-names = "default";
+ pinctrl-0 = <&usr_led_pins_default>;
+
+ led-0 {
+ label = "am62-sk:green:heartbeat";
+ gpios = <&main_gpio1 49 GPIO_ACTIVE_HIGH>;
+ linux,default-trigger = "heartbeat";
+ function = LED_FUNCTION_HEARTBEAT;
+ default-state = "off";
+ };
+ };
+};
+
+&main_pmx0 {
+ main_uart0_pins_default: main-uart0-pins-default {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x1c8, PIN_INPUT, 0) /* (D14) UART0_RXD */
+ AM62X_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (E14) UART0_TXD */
+ >;
+ };
+
+ main_i2c0_pins_default: main-i2c0-pins-default {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x1e0, PIN_INPUT_PULLUP, 0) /* (B16) I2C0_SCL */
+ AM62X_IOPAD(0x1e4, PIN_INPUT_PULLUP, 0) /* (A16) I2C0_SDA */
+ >;
+ };
+
+ main_i2c1_pins_default: main-i2c1-pins-default {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x1e8, PIN_INPUT_PULLUP, 0) /* (B17) I2C1_SCL */
+ AM62X_IOPAD(0x1ec, PIN_INPUT_PULLUP, 0) /* (A17) I2C1_SDA */
+ >;
+ };
+
+ usr_led_pins_default: usr-led-pins-default {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x244, PIN_OUTPUT, 7) /* (C17) MMC1_SDWP.GPIO1_49 */
+ >;
+ };
+};
+
+&wkup_uart0 {
+ /* WKUP UART0 is used by DM firmware */
+ status = "reserved";
+};
+
+&mcu_uart0 {
+ status = "disabled";
+};
+
+&main_uart0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_uart0_pins_default>;
+};
+
+&main_uart1 {
+ /* Main UART1 is used by TIFS firmware */
+ status = "reserved";
+};
+
+&main_uart2 {
+ status = "disabled";
+};
+
+&main_uart3 {
+ status = "disabled";
+};
+
+&main_uart4 {
+ status = "disabled";
+};
+
+&main_uart5 {
+ status = "disabled";
+};
+
+&main_uart6 {
+ status = "disabled";
+};
+
+&mcu_i2c0 {
+ status = "disabled";
+};
+
+&wkup_i2c0 {
+ status = "disabled";
+};
+
+&main_i2c0 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_i2c0_pins_default>;
+ clock-frequency = <400000>;
+};
+
+&main_i2c1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_i2c1_pins_default>;
+ clock-frequency = <400000>;
+};
+
+&main_i2c2 {
+ status = "disabled";
+};
+
+&main_i2c3 {
+ status = "disabled";
+};
+
+&mailbox0_cluster0 {
+ mbox_m4_0: mbox-m4-0 {
+ ti,mbox-rx = <0 0 0>;
+ ti,mbox-tx = <1 0 0>;
+ };
+};
--
2.35.1