arm: dts: Add support for AM62-SK
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.
To keep the changes to minimum. Only UART And SD are supported at the
moment. This should serve as good example for adding new board support
based on AM62x SoC
Schematics: https://www.ti.com/lit/zip/sprr448
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Aswath Govindraju <a-govindraju@ti.com>
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Dave Gerlach <d-gerlach@ti.com>
Signed-off-by: Vignesh Raghavendra <vigneshr@ti.com>
diff --git a/arch/arm/dts/k3-am625-sk.dts b/arch/arm/dts/k3-am625-sk.dts
new file mode 100644
index 0000000..76b06ea
--- /dev/null
+++ b/arch/arm/dts/k3-am625-sk.dts
@@ -0,0 +1,150 @@
+// 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 <dt-bindings/net/ti-dp83867.h>
+#include "k3-am625.dtsi"
+
+/ {
+ compatible = "ti,am625-sk", "ti,am625";
+ model = "Texas Instruments AM625 SK";
+
+ aliases {
+ serial2 = &main_uart0;
+ mmc1 = &sdhci1;
+ };
+
+ 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@9db00000 {
+ compatible = "shared-dma-pool";
+ reg = <0x00 0x9db00000 0x00 0xc00000>;
+ no-map;
+ };
+ };
+};
+
+&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_mmc1_pins_default: main-mmc1-pins-default {
+ pinctrl-single,pins = <
+ AM62X_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */
+ AM62X_IOPAD(0x234, PIN_INPUT, 0) /* (B22) MMC1_CLK */
+ AM62X_IOPAD(0x230, PIN_INPUT, 0) /* (A22) MMC1_DAT0 */
+ AM62X_IOPAD(0x22c, PIN_INPUT, 0) /* (B21) MMC1_DAT1 */
+ AM62X_IOPAD(0x228, PIN_INPUT, 0) /* (C21) MMC1_DAT2 */
+ AM62X_IOPAD(0x224, PIN_INPUT, 0) /* (D22) MMC1_DAT3 */
+ AM62X_IOPAD(0x240, PIN_INPUT, 0) /* (D17) MMC1_SDCD */
+ >;
+ };
+};
+
+&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 {
+ status = "disabled";
+};
+
+&main_i2c1 {
+ status = "disabled";
+};
+
+&main_i2c2 {
+ status = "disabled";
+};
+
+&main_i2c3 {
+ status = "disabled";
+};
+
+&sdhci1 {
+ pinctrl-names = "default";
+ pinctrl-0 = <&main_mmc1_pins_default>;
+ ti,driver-strength-ohm = <50>;
+ disable-wp;
+};