From 1e6550d35c245e10c3a8fd7c7a9f96d7b905ba05 Mon Sep 17 00:00:00 2001 From: Dave Gerlach Date: Fri, 26 Feb 2021 08:42:57 -0600 Subject: [PATCH] arm64: dts: ti: Add support for AM642 EVM 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. Introduce support for the AM642 EVM to enable mmc boot, including enabling UART and I2C on the board. Signed-off-by: Aswath Govindraju Signed-off-by: Faiz Abbas Signed-off-by: Suman Anna Signed-off-by: Nishanth Menon Signed-off-by: Dave Gerlach Tested-by: Kishon Vijay Abraham I Reviewed-by: Grygorii Strashko Link: https://lore.kernel.org/r/20210226144257.5470-6-d-gerlach@ti.com --- arch/arm64/boot/dts/ti/Makefile | 4 +- arch/arm64/boot/dts/ti/k3-am642-evm.dts | 246 ++++++++++++++++++++++++++++++++ 2 files changed, 249 insertions(+), 1 deletion(-) create mode 100644 arch/arm64/boot/dts/ti/k3-am642-evm.dts diff --git a/arch/arm64/boot/dts/ti/Makefile b/arch/arm64/boot/dts/ti/Makefile index 65506f2..596fc10 100644 --- a/arch/arm64/boot/dts/ti/Makefile +++ b/arch/arm64/boot/dts/ti/Makefile @@ -3,7 +3,7 @@ # Make file to build device tree binaries for boards based on # Texas Instruments Inc processors # -# Copyright (C) 2016-2020 Texas Instruments Incorporated - https://www.ti.com/ +# Copyright (C) 2016-2021 Texas Instruments Incorporated - https://www.ti.com/ # dtb-$(CONFIG_ARCH_K3) += k3-am654-base-board.dtb @@ -11,3 +11,5 @@ dtb-$(CONFIG_ARCH_K3) += k3-am654-base-board.dtb dtb-$(CONFIG_ARCH_K3) += k3-j721e-common-proc-board.dtb dtb-$(CONFIG_ARCH_K3) += k3-j7200-common-proc-board.dtb + +dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb diff --git a/arch/arm64/boot/dts/ti/k3-am642-evm.dts b/arch/arm64/boot/dts/ti/k3-am642-evm.dts new file mode 100644 index 0000000..1f17877 --- /dev/null +++ b/arch/arm64/boot/dts/ti/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 +#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; +}; -- 2.7.4