diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
index e6a1cac0bfc7..f6ec58f1dd7e 100644
--- a/arch/arm/boot/dts/Makefile
+++ b/arch/arm/boot/dts/Makefile
@@ -793,7 +793,7 @@ dtb-$(CONFIG_SOC_AM33XX) += \
 	am335x-icev2.dtb \
 	am335x-lxm.dtb \
 	am335x-moxa-uc-2101.dtb \
-	am335x-moxa-uc-8100-me-t.dtb \
+	am335x-moxa-uc-8100a-me.dtb \
 	am335x-nano.dtb \
 	am335x-netcan-plus-1xx.dtb \
 	am335x-netcom-plus-2xx.dtb \
diff --git a/arch/arm/boot/dts/am335x-moxa-uc-8100-me-t.dts b/arch/arm/boot/dts/am335x-moxa-uc-8100a-me.dts
similarity index 93%
rename from arch/arm/boot/dts/am335x-moxa-uc-8100-me-t.dts
rename to arch/arm/boot/dts/am335x-moxa-uc-8100a-me.dts
index f03e72cada41..536bbfeaa6e1 100644
--- a/arch/arm/boot/dts/am335x-moxa-uc-8100-me-t.dts
+++ b/arch/arm/boot/dts/am335x-moxa-uc-8100a-me.dts
@@ -1,8 +1,6 @@
-// SPDX-License-Identifier: GPL-2.0-only
+// SPDX-License-Identifier: GPL-2.0
 /*
- * Copyright (C) 2017 MOXA Inc. - https://www.moxa.com/
- *
- * Author: SZ Lin (林上智) <sz.lin@moxa.com>
+ * Copyright (C) 2020 MOXA Inc. - https://www.moxa.com/
  */
 
 /dts-v1/;
@@ -10,8 +8,8 @@
 #include "am33xx.dtsi"
 
 / {
-	model = "Moxa UC-8100-ME-T";
-	compatible = "moxa,uc-8100-me-t", "ti,am33xx";
+	model = "Moxa UC-8100A-ME";
+	compatible = "moxa,uc-8100a-me", "ti,am33xx";
 
 	cpus {
 		cpu@0 {
@@ -19,11 +17,6 @@
 		};
 	};
 
-	memory {
-		device_type = "memory";
-		reg = <0x80000000 0x20000000>; /* 512 MB */
-	};
-
 	vbat: vbat-regulator {
 		compatible = "regulator-fixed";
 	};
@@ -40,51 +33,51 @@
 	leds {
 		compatible = "gpio-leds";
 		led1 {
-			label = "uc8100me:CEL1";
+			label = "UC-8100A-ME:RED:SGN1";
 			gpios = <&gpio_xten 8 0>;
 			default-state = "off";
 		};
 
 		led2 {
-			label = "uc8100me:CEL2";
+			label = "UC-8100A-ME:YELLOW:SGN2";
 			gpios = <&gpio_xten 9 0>;
 			default-state = "off";
 		};
 
 		led3 {
-			label = "uc8100me:CEL3";
+			label = "UC-8100A-ME:GREEN:SGN3";
 			gpios = <&gpio_xten 10 0>;
 			default-state = "off";
 		};
 
 		led4 {
-			label = "uc8100me:DIA1";
+			label = "UC-8100A-ME:RED:DIA1";
 			gpios = <&gpio_xten 11 0>;
 			default-state = "off";
 		};
 		led5 {
-			label = "uc8100me:DIA2";
+			label = "UC-8100A-ME:YELLOW:DIA2";
 			gpios = <&gpio_xten 12 0>;
 			default-state = "off";
 		};
 		led6 {
-			label = "uc8100me:DIA3";
+			label = "UC-8100A-ME:GREEN:DIA3";
 			gpios = <&gpio_xten 13 0>;
 			default-state = "off";
 		};
 		led7 {
-			label = "uc8100me:SD";
+			label = "UC-8100A-ME:GREEN:SD";
 			gpios = <&gpio_xten 14 0>;
 			default-state = "off";
 		};
 		led8 {
-			label = "uc8100me:USB";
+			label = "UC-8100A-ME:GREEN:USB";
 			gpios = <&gpio_xten 15 0>;
 			default-state = "off";
 		};
 		led9 {
-			label = "uc8100me:USER";
-			gpios = <&gpio0 20 GPIO_ACTIVE_HIGH>;
+			label = "UC-8100A-ME:GREEN:USER";
+			gpios = <&gpio0 20 0>;
 			default-state = "off";
 		};
 	};
@@ -219,6 +212,7 @@
 		pinctrl-single,pins = <
 			AM33XX_PADCONF(AM335X_PIN_SPI0_SCLK, PIN_INPUT_PULLUP, MUX_MODE0)
 			AM33XX_PADCONF(AM335X_PIN_SPI0_CS0, PIN_INPUT_PULLUP, MUX_MODE0)
+			AM33XX_PADCONF(AM335X_PIN_SPI0_CS1, PIN_INPUT_PULLUP, MUX_MODE0)
 			AM33XX_PADCONF(AM335X_PIN_SPI0_D0, PIN_INPUT_PULLUP, MUX_MODE0)
 			AM33XX_PADCONF(AM335X_PIN_SPI0_D1, PIN_INPUT_PULLUP, MUX_MODE0)
 		>;
@@ -254,11 +248,6 @@
 	status = "okay";
 	clock-frequency = <400000>;
 
-	tpm: tpm@20 {
-		compatible = "infineon,slb9645tt";
-		reg = <0x20>;
-	};
-
 	tps: tps@2d {
 		compatible = "ti,tps65910";
 		reg = <0x2d>;
@@ -322,8 +311,8 @@
 		vdd1_reg: regulator@2 {
 			/* VDD_MPU voltage limits 0.95V - 1.26V with +/-4% tolerance */
 			regulator-name = "vdd_mpu";
-			regulator-min-microvolt = <912500>;
-			regulator-max-microvolt = <1378000>;
+			regulator-min-microvolt = <600000>;
+			regulator-max-microvolt = <1500000>;
 			regulator-boot-on;
 			regulator-always-on;
 		};
@@ -331,8 +320,8 @@
 		vdd2_reg: regulator@3 {
 			/* VDD_CORE voltage limits 0.95V - 1.1V with +/-4% tolerance */
 			regulator-name = "vdd_core";
-			regulator-min-microvolt = <912500>;
-			regulator-max-microvolt = <1150000>;
+			regulator-min-microvolt = <600000>;
+			regulator-max-microvolt = <1500000>;
 			regulator-boot-on;
 			regulator-always-on;
 		};
@@ -481,6 +470,7 @@
 		reg = <0>;
 		spi-cpol;
 		spi-cpha;
+
 		#address-cells = <1>;
 		#size-cells = <1>;
 
@@ -500,4 +490,10 @@
 			reg = <0x180000 0x20000>;
 		};
 	};
+
+	tpm_spi_tis@1{
+		compatible = "tcg,tpm_tis-spi";
+		reg = <1>;
+		spi-max-frequency = <500000>;
+	};
 };
