The AM642 EValuation Module (EVM) is a board that provides access to various peripherals available on the AM642 SoC, such as PCIe, USB 2.0, CPSW Ethernet, ADC, and more.
Add basic support.
Signed-off-by: Dave Gerlach d-gerlach@ti.com --- arch/arm/dts/Makefile | 1 + arch/arm/dts/k3-am642-evm.dts | 246 ++++++++++++++++++++++++++++++++++ 2 files changed, 247 insertions(+) create mode 100644 arch/arm/dts/k3-am642-evm.dts
diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile index c6710826a0ae..70ba1414fb01 100644 --- a/arch/arm/dts/Makefile +++ b/arch/arm/dts/Makefile @@ -1002,6 +1002,7 @@ dtb-$(CONFIG_SOC_K3_J721E) += k3-j721e-common-proc-board.dtb \ k3-j721e-r5-common-proc-board.dtb \ k3-j7200-common-proc-board.dtb \ k3-j7200-r5-common-proc-board.dtb +dtb-$(CONFIG_SOC_K3_AM642) += k3-am642-evm.dtb
dtb-$(CONFIG_ARCH_MEDIATEK) += \ mt7622-rfb.dtb \ diff --git a/arch/arm/dts/k3-am642-evm.dts b/arch/arm/dts/k3-am642-evm.dts new file mode 100644 index 000000000000..1f1787750fef --- /dev/null +++ b/arch/arm/dts/k3-am642-evm.dts @@ -0,0 +1,246 @@ +// SPDX-License-Identifier: GPL-2.0 +/* + * Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/ + */ + +/dts-v1/; + +#include <dt-bindings/leds/common.h> +#include "k3-am642.dtsi" + +/ { + compatible = "ti,am642-evm", "ti,am642"; + model = "Texas Instruments AM642 EVM"; + + 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_ddr: optee@9e800000 { + reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */ + alignment = <0x1000>; + no-map; + }; + }; + + evm_12v0: fixedregulator-evm12v0 { + /* main DC jack */ + compatible = "regulator-fixed"; + regulator-name = "evm_12v0"; + regulator-min-microvolt = <12000000>; + regulator-max-microvolt = <12000000>; + regulator-always-on; + regulator-boot-on; + }; + + vsys_5v0: fixedregulator-vsys5v0 { + /* output of LM5140 */ + compatible = "regulator-fixed"; + regulator-name = "vsys_5v0"; + regulator-min-microvolt = <5000000>; + regulator-max-microvolt = <5000000>; + vin-supply = <&evm_12v0>; + regulator-always-on; + regulator-boot-on; + }; + + vsys_3v3: fixedregulator-vsys3v3 { + /* output of LM5140 */ + compatible = "regulator-fixed"; + regulator-name = "vsys_3v3"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + vin-supply = <&evm_12v0>; + regulator-always-on; + regulator-boot-on; + }; + + vdd_mmc1: fixed-regulator-sd { + /* TPS2051BD */ + compatible = "regulator-fixed"; + regulator-name = "vdd_mmc1"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + regulator-boot-on; + enable-active-high; + vin-supply = <&vsys_3v3>; + gpio = <&exp1 6 GPIO_ACTIVE_HIGH>; + }; + + vddb: fixedregulator-vddb { + compatible = "regulator-fixed"; + regulator-name = "vddb_3v3_display"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; + vin-supply = <&vsys_3v3>; + regulator-always-on; + regulator-boot-on; + }; + + leds { + compatible = "gpio-leds"; + + led-0 { + label = "am64-evm:red:heartbeat"; + gpios = <&exp1 16 GPIO_ACTIVE_HIGH>; + linux,default-trigger = "heartbeat"; + function = LED_FUNCTION_HEARTBEAT; + default-state = "off"; + }; + }; +}; + +&main_pmx0 { + main_mmc1_pins_default: main-mmc1-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x0294, PIN_INPUT_PULLUP, 0) /* (J19) MMC1_CMD */ + AM64X_IOPAD(0x028c, PIN_INPUT_PULLDOWN, 0) /* (L20) MMC1_CLK */ + AM64X_IOPAD(0x0288, PIN_INPUT_PULLUP, 0) /* (K21) MMC1_DAT0 */ + AM64X_IOPAD(0x0284, PIN_INPUT_PULLUP, 0) /* (L21) MMC1_DAT1 */ + AM64X_IOPAD(0x0280, PIN_INPUT_PULLUP, 0) /* (K19) MMC1_DAT2 */ + AM64X_IOPAD(0x027c, PIN_INPUT_PULLUP, 0) /* (K18) MMC1_DAT3 */ + AM64X_IOPAD(0x0298, PIN_INPUT_PULLUP, 0) /* (D19) MMC1_SDCD */ + AM64X_IOPAD(0x029c, PIN_INPUT, 0) /* (C20) MMC1_SDWP */ + AM64X_IOPAD(0x0290, PIN_INPUT, 0) /* MMC1_CLKLB */ + >; + }; + + main_uart0_pins_default: main-uart0-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x0238, PIN_INPUT, 0) /* (B16) UART0_CTSn */ + AM64X_IOPAD(0x023c, PIN_OUTPUT, 0) /* (A16) UART0_RTSn */ + AM64X_IOPAD(0x0230, PIN_INPUT, 0) /* (D15) UART0_RXD */ + AM64X_IOPAD(0x0234, PIN_OUTPUT, 0) /* (C16) UART0_TXD */ + >; + }; + + main_i2c1_pins_default: main-i2c1-pins-default { + pinctrl-single,pins = < + AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */ + AM64X_IOPAD(0x026c, PIN_INPUT_PULLUP, 0) /* (B19) I2C1_SDA */ + >; + }; +}; + +&main_uart0 { + pinctrl-names = "default"; + pinctrl-0 = <&main_uart0_pins_default>; +}; + +/* main_uart1 is reserved for firmware usage */ +&main_uart1 { + status = "reserved"; +}; + +&main_uart2 { + status = "disabled"; +}; + +&main_uart3 { + status = "disabled"; +}; + +&main_uart4 { + status = "disabled"; +}; + +&main_uart5 { + status = "disabled"; +}; + +&main_uart6 { + status = "disabled"; +}; + +&mcu_uart0 { + status = "disabled"; +}; + +&mcu_uart1 { + status = "disabled"; +}; + +&main_i2c1 { + 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_eMMC_RSTn", "CAN_MUX_SEL", + "GPIO_CPSW1_RST", "GPIO_RGMII1_RST", + "GPIO_RGMII2_RST", "GPIO_PCIe_RST_OUT", + "MMC1_SD_EN", "FSI_FET_SEL", + "MCAN0_STB_3V3", "MCAN1_STB_3V3", + "CPSW_FET_SEL", "CPSW_FET2_SEL", + "PRG1_RGMII2_FET_SEL", "TEST_GPIO2", + "GPIO_OLED_RESETn", "VPP_LDO_EN", + "TEST_LED1", "TP92", "TP90", "TP88", + "TP87", "TP86", "TP89", "TP91"; + }; + + /* osd9616p0899-10 */ + display@3c { + compatible = "solomon,ssd1306fb-i2c"; + reg = <0x3c>; + reset-gpios = <&exp1 14 GPIO_ACTIVE_LOW>; + vbat-supply = <&vddb>; + solomon,height = <16>; + solomon,width = <96>; + solomon,com-seq; + solomon,com-invdir; + solomon,page-offset = <0>; + solomon,prechargep1 = <2>; + solomon,prechargep2 = <13>; + }; +}; + +&mcu_i2c0 { + status = "disabled"; +}; + +&mcu_i2c1 { + status = "disabled"; +}; + +&mcu_spi0 { + status = "disabled"; +}; + +&mcu_spi1 { + status = "disabled"; +}; + +&sdhci0 { + /* emmc */ + bus-width = <8>; + non-removable; + ti,driver-strength-ohm = <50>; + disable-wp; +}; + +&sdhci1 { + /* SD/MMC */ + vmmc-supply = <&vdd_mmc1>; + pinctrl-names = "default"; + bus-width = <4>; + pinctrl-0 = <&main_mmc1_pins_default>; + ti,driver-strength-ohm = <50>; + disable-wp; +};