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-gerl...@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;
+};
--
2.28.0
