AM62A StarterKit (SK) board is a low cost, small form factor board designed for TI’s AM62A7 SoC. It supports the following interfaces: * 2 GB LPDDR4 RAM * x1 Gigabit Ethernet interface * x1 HDMI Port with audio * 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 * M.2 SDIO Wifi + UART slot * 1Gb OSPI NAND 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 * 40-pin CSI header Add basic support for AM62A7-SK. Schematics: https://www.ti.com/lit/zip/sprr459 Co-developed-by: Bryan Brattlof <bb@xxxxxx> Signed-off-by: Bryan Brattlof <bb@xxxxxx> Signed-off-by: Vignesh Raghavendra <vigneshr@xxxxxx> --- arch/arm64/boot/dts/ti/Makefile | 2 + arch/arm64/boot/dts/ti/k3-am62a7-sk.dts | 224 ++++++++++++++++++++++++ 2 files changed, 226 insertions(+) create mode 100644 arch/arm64/boot/dts/ti/k3-am62a7-sk.dts diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 02e5d80344d0..4555a5be2257 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -23,3 +23,5 @@ dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb dtb-$(CONFIG_ARCH_K3) += k3-am642-sk.dtb dtb-$(CONFIG_ARCH_K3) += k3-am625-sk.dtb + +dtb-$(CONFIG_ARCH_K3) += k3-am62a7-sk.dtb diff --git a/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts new file mode 100644 index 000000000000..994ed6865551 --- /dev/null +++ b/arch/arm64/boot/dts/ti/k3-am62a7-sk.dts @@ -0,0 +1,224 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * AM62A SK: https://www.ti.com/lit/zip/sprr459 + * + * Copyright (C) 2022 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; + +#include <dt-bindings/leds/common.h> +#include <dt-bindings/gpio/gpio.h> +#include "k3-am62a7.dtsi" + +/ { + compatible = "ti,am62a7-sk", "ti,am62a7"; + model = "Texas Instruments AM62A7 SK"; + + aliases { + serial2 = &main_uart0; + mmc1 = &sdhci1; + }; + + chosen { + stdout-path = "serial2:115200n8"; + }; + + 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_memory_region: r5f-dma-memory@9c900000 { + compatible = "shared-dma-pool"; + reg = <0x00 0x9c900000 0x00 0x01e00000>; + no-map; + }; + }; + + vmain_pd: regulator-0 { + /* TPS25750 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: regulator-1 { + /* Output of TPS63070 */ + 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: regulator-2 { + /* output of LM5141-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-3 { + /* TPS22918DBVR */ + compatible = "regulator-fixed"; + regulator-name = "vdd_mmc1"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + enable-active-high; + gpio = <&exp1 3 GPIO_ACTIVE_HIGH>; + }; + + leds { + compatible = "gpio-leds"; + pinctrl-names = "default"; + pinctrl-0 = <&usr_led_pins_default>; + + led-0 { + label = "am62a-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 = < + AM62AX_IOPAD(0x1c8, PIN_INPUT, 0) /* (D14) UART0_RXD */ + AM62AX_IOPAD(0x1cc, PIN_OUTPUT, 0) /* (E14) UART0_TXD */ + >; + }; + + main_i2c0_pins_default: main-i2c0-pins-default { + pinctrl-single,pins = < + AM62AX_IOPAD(0x1e0, PIN_INPUT_PULLUP, 0) /* (B16) I2C0_SCL */ + AM62AX_IOPAD(0x1e4, PIN_INPUT_PULLUP, 0) /* (A16) I2C0_SDA */ + >; + }; + + main_i2c1_pins_default: main-i2c1-pins-default { + pinctrl-single,pins = < + AM62AX_IOPAD(0x1e8, PIN_INPUT_PULLUP, 0) /* (B17) I2C1_SCL */ + AM62AX_IOPAD(0x1ec, PIN_INPUT_PULLUP, 0) /* (A17) I2C1_SDA */ + >; + }; + + main_i2c2_pins_default: main-i2c2-pins-default { + pinctrl-single,pins = < + AM62AX_IOPAD(0x0b0, PIN_INPUT_PULLUP, 1) /* (K22) GPMC0_CSn2.I2C2_SCL */ + AM62AX_IOPAD(0x0b4, PIN_INPUT_PULLUP, 1) /* (K24) GPMC0_CSn3.I2C2_SDA */ + >; + }; + + main_mmc1_pins_default: main-mmc1-pins-default { + pinctrl-single,pins = < + AM62AX_IOPAD(0x23c, PIN_INPUT, 0) /* (A21) MMC1_CMD */ + AM62AX_IOPAD(0x234, PIN_INPUT, 0) /* (B22) MMC1_CLK */ + AM62AX_IOPAD(0x230, PIN_INPUT, 0) /* (A22) MMC1_DAT0 */ + AM62AX_IOPAD(0x22c, PIN_INPUT, 0) /* (B21) MMC1_DAT1 */ + AM62AX_IOPAD(0x228, PIN_INPUT, 0) /* (C21) MMC1_DAT2 */ + AM62AX_IOPAD(0x224, PIN_INPUT, 0) /* (D22) MMC1_DAT3 */ + AM62AX_IOPAD(0x240, PIN_INPUT, 0) /* (D17) MMC1_SDCD */ + >; + }; + + usr_led_pins_default: usr-led-pins-default { + pinctrl-single,pins = < + AM62AX_IOPAD(0x244, PIN_OUTPUT, 7) /* (D18) MMC1_SDWP.GPIO1_49 */ + >; + }; +}; + +&main_i2c0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&main_i2c0_pins_default>; + clock-frequency = <400000>; +}; + +&main_i2c1 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&main_i2c1_pins_default>; + clock-frequency = <400000>; + + exp1: gpio@22 { + compatible = "ti,tca6424"; + reg = <0x22>; + gpio-controller; + #gpio-cells = <2>; + + gpio-line-names = "GPIO_CPSW2_RST", "GPIO_CPSW1_RST", + "BT_EN_SOC", "MMC1_SD_EN", + "VPP_EN", "EXP_PS_3V3_En", + "EXP_PS_5V0_En", "EXP_HAT_DETECT", + "GPIO_AUD_RSTn", "GPIO_eMMC_RSTn", + "UART1_FET_BUF_EN", "BT_UART_WAKE_SOC", + "GPIO_HDMI_RSTn", "CSI_GPIO0", + "CSI_GPIO1", "WLAN_ALERTn", + "HDMI_INTn", "TEST_GPIO2", + "MCASP1_FET_EN", "MCASP1_BUF_BT_EN", + "MCASP1_FET_SEL", "UART1_FET_SEL", + "PD_I2C_IRQ", "IO_EXP_TEST_LED"; + }; +}; + +&sdhci1 { + /* SD/MMC */ + status = "okay"; + vmmc-supply = <&vdd_mmc1>; + pinctrl-names = "default"; + pinctrl-0 = <&main_mmc1_pins_default>; + ti,driver-strength-ohm = <50>; + disable-wp; +}; + +&main_gpio0 { + status = "okay"; +}; + +&main_gpio1 { + status = "okay"; +}; + +&main_gpio_intr { + status = "okay"; +}; + +&main_uart0 { + status = "okay"; + pinctrl-names = "default"; + pinctrl-0 = <&main_uart0_pins_default>; +}; -- 2.25.1
