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
