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 <a-govindraju@ti.com> Signed-off-by: Faiz Abbas <faiz_abbas@ti.com> Signed-off-by: Suman Anna <s-anna@ti.com> Signed-off-by: Nishanth Menon <nm@ti.com> Signed-off-by: Dave Gerlach <d-gerlach@ti.com> Tested-by: Kishon Vijay Abraham I <kishon@ti.com> Reviewed-by: Grygorii Strashko <grygorii.strashko@ti.com> Link: https://lore.kernel.org/r/20210226144257.5470-6-d-gerlach@ti.com
This commit is contained in:
Dave Gerlach
committed by
Nishanth Menon
Nishanth Menon
parent
943f172312
commit
1e6550d35c
@@ -3,7 +3,7 @@
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# Make file to build device tree binaries for boards based on
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# Texas Instruments Inc processors
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#
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# Copyright (C) 2016-2020 Texas Instruments Incorporated - https://www.ti.com/
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# Copyright (C) 2016-2021 Texas Instruments Incorporated - https://www.ti.com/
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#
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dtb-$(CONFIG_ARCH_K3) += k3-am654-base-board.dtb
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@@ -11,3 +11,5 @@ dtb-$(CONFIG_ARCH_K3) += k3-am654-base-board.dtb
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dtb-$(CONFIG_ARCH_K3) += k3-j721e-common-proc-board.dtb
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dtb-$(CONFIG_ARCH_K3) += k3-j7200-common-proc-board.dtb
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dtb-$(CONFIG_ARCH_K3) += k3-am642-evm.dtb
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@@ -0,0 +1,246 @@
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// SPDX-License-Identifier: GPL-2.0
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/*
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* Copyright (C) 2020-2021 Texas Instruments Incorporated - https://www.ti.com/
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*/
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/dts-v1/;
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#include <dt-bindings/leds/common.h>
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#include "k3-am642.dtsi"
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/ {
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compatible = "ti,am642-evm", "ti,am642";
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model = "Texas Instruments AM642 EVM";
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chosen {
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stdout-path = "serial2:115200n8";
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bootargs = "console=ttyS2,115200n8 earlycon=ns16550a,mmio32,0x02800000";
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};
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memory@80000000 {
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device_type = "memory";
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/* 2G RAM */
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reg = <0x00000000 0x80000000 0x00000000 0x80000000>;
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};
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reserved-memory {
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#address-cells = <2>;
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#size-cells = <2>;
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ranges;
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secure_ddr: optee@9e800000 {
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reg = <0x00 0x9e800000 0x00 0x01800000>; /* for OP-TEE */
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alignment = <0x1000>;
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no-map;
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};
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};
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evm_12v0: fixedregulator-evm12v0 {
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/* main DC jack */
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compatible = "regulator-fixed";
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regulator-name = "evm_12v0";
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regulator-min-microvolt = <12000000>;
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regulator-max-microvolt = <12000000>;
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regulator-always-on;
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regulator-boot-on;
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};
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vsys_5v0: fixedregulator-vsys5v0 {
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/* output of LM5140 */
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compatible = "regulator-fixed";
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regulator-name = "vsys_5v0";
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regulator-min-microvolt = <5000000>;
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regulator-max-microvolt = <5000000>;
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vin-supply = <&evm_12v0>;
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regulator-always-on;
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regulator-boot-on;
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};
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vsys_3v3: fixedregulator-vsys3v3 {
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/* output of LM5140 */
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compatible = "regulator-fixed";
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regulator-name = "vsys_3v3";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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vin-supply = <&evm_12v0>;
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regulator-always-on;
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regulator-boot-on;
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};
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vdd_mmc1: fixed-regulator-sd {
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/* TPS2051BD */
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compatible = "regulator-fixed";
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regulator-name = "vdd_mmc1";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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regulator-boot-on;
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enable-active-high;
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vin-supply = <&vsys_3v3>;
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gpio = <&exp1 6 GPIO_ACTIVE_HIGH>;
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};
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vddb: fixedregulator-vddb {
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compatible = "regulator-fixed";
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regulator-name = "vddb_3v3_display";
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regulator-min-microvolt = <3300000>;
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regulator-max-microvolt = <3300000>;
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vin-supply = <&vsys_3v3>;
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regulator-always-on;
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regulator-boot-on;
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};
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leds {
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compatible = "gpio-leds";
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led-0 {
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label = "am64-evm:red:heartbeat";
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gpios = <&exp1 16 GPIO_ACTIVE_HIGH>;
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linux,default-trigger = "heartbeat";
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function = LED_FUNCTION_HEARTBEAT;
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default-state = "off";
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};
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};
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};
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&main_pmx0 {
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main_mmc1_pins_default: main-mmc1-pins-default {
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pinctrl-single,pins = <
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AM64X_IOPAD(0x0294, PIN_INPUT_PULLUP, 0) /* (J19) MMC1_CMD */
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AM64X_IOPAD(0x028c, PIN_INPUT_PULLDOWN, 0) /* (L20) MMC1_CLK */
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AM64X_IOPAD(0x0288, PIN_INPUT_PULLUP, 0) /* (K21) MMC1_DAT0 */
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AM64X_IOPAD(0x0284, PIN_INPUT_PULLUP, 0) /* (L21) MMC1_DAT1 */
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AM64X_IOPAD(0x0280, PIN_INPUT_PULLUP, 0) /* (K19) MMC1_DAT2 */
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AM64X_IOPAD(0x027c, PIN_INPUT_PULLUP, 0) /* (K18) MMC1_DAT3 */
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AM64X_IOPAD(0x0298, PIN_INPUT_PULLUP, 0) /* (D19) MMC1_SDCD */
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AM64X_IOPAD(0x029c, PIN_INPUT, 0) /* (C20) MMC1_SDWP */
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AM64X_IOPAD(0x0290, PIN_INPUT, 0) /* MMC1_CLKLB */
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>;
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};
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main_uart0_pins_default: main-uart0-pins-default {
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pinctrl-single,pins = <
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AM64X_IOPAD(0x0238, PIN_INPUT, 0) /* (B16) UART0_CTSn */
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AM64X_IOPAD(0x023c, PIN_OUTPUT, 0) /* (A16) UART0_RTSn */
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AM64X_IOPAD(0x0230, PIN_INPUT, 0) /* (D15) UART0_RXD */
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AM64X_IOPAD(0x0234, PIN_OUTPUT, 0) /* (C16) UART0_TXD */
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>;
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};
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main_i2c1_pins_default: main-i2c1-pins-default {
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pinctrl-single,pins = <
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AM64X_IOPAD(0x0268, PIN_INPUT_PULLUP, 0) /* (C18) I2C1_SCL */
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AM64X_IOPAD(0x026c, PIN_INPUT_PULLUP, 0) /* (B19) I2C1_SDA */
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>;
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};
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};
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&main_uart0 {
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pinctrl-names = "default";
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pinctrl-0 = <&main_uart0_pins_default>;
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};
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/* main_uart1 is reserved for firmware usage */
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&main_uart1 {
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status = "reserved";
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};
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&main_uart2 {
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status = "disabled";
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};
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&main_uart3 {
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status = "disabled";
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};
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&main_uart4 {
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status = "disabled";
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};
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&main_uart5 {
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status = "disabled";
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};
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&main_uart6 {
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status = "disabled";
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};
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&mcu_uart0 {
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status = "disabled";
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};
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&mcu_uart1 {
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status = "disabled";
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};
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&main_i2c1 {
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pinctrl-names = "default";
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pinctrl-0 = <&main_i2c1_pins_default>;
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clock-frequency = <400000>;
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exp1: gpio@22 {
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compatible = "ti,tca6424";
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reg = <0x22>;
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gpio-controller;
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#gpio-cells = <2>;
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gpio-line-names = "GPIO_eMMC_RSTn", "CAN_MUX_SEL",
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"GPIO_CPSW1_RST", "GPIO_RGMII1_RST",
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"GPIO_RGMII2_RST", "GPIO_PCIe_RST_OUT",
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"MMC1_SD_EN", "FSI_FET_SEL",
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"MCAN0_STB_3V3", "MCAN1_STB_3V3",
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"CPSW_FET_SEL", "CPSW_FET2_SEL",
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"PRG1_RGMII2_FET_SEL", "TEST_GPIO2",
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"GPIO_OLED_RESETn", "VPP_LDO_EN",
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"TEST_LED1", "TP92", "TP90", "TP88",
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"TP87", "TP86", "TP89", "TP91";
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};
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/* osd9616p0899-10 */
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display@3c {
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compatible = "solomon,ssd1306fb-i2c";
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reg = <0x3c>;
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reset-gpios = <&exp1 14 GPIO_ACTIVE_LOW>;
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vbat-supply = <&vddb>;
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solomon,height = <16>;
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solomon,width = <96>;
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solomon,com-seq;
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solomon,com-invdir;
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solomon,page-offset = <0>;
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solomon,prechargep1 = <2>;
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solomon,prechargep2 = <13>;
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};
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};
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&mcu_i2c0 {
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status = "disabled";
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};
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&mcu_i2c1 {
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status = "disabled";
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};
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&mcu_spi0 {
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status = "disabled";
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};
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&mcu_spi1 {
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status = "disabled";
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};
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&sdhci0 {
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/* emmc */
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bus-width = <8>;
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non-removable;
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ti,driver-strength-ohm = <50>;
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disable-wp;
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};
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&sdhci1 {
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/* SD/MMC */
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vmmc-supply = <&vdd_mmc1>;
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pinctrl-names = "default";
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bus-width = <4>;
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pinctrl-0 = <&main_mmc1_pins_default>;
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ti,driver-strength-ohm = <50>;
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disable-wp;
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};
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