diff --git a/arch/arm/dts/Makefile b/arch/arm/dts/Makefile
index 9c593b2..820ee97 100644
--- a/arch/arm/dts/Makefile
+++ b/arch/arm/dts/Makefile
@@ -180,7 +180,8 @@ dtb-$(CONFIG_TEGRA) += tegra20-harmony.dtb \
 	tegra210-e2220-1170.dtb \
 	tegra210-p2371-0000.dtb \
 	tegra210-p2371-2180.dtb \
-	tegra210-p2571.dtb
+	tegra210-p2571.dtb \
+	tegra210-p3450-0000.dtb
 
 dtb-$(CONFIG_ARCH_MVEBU) +=			\
 	armada-3720-db.dtb			\
diff --git a/arch/arm/dts/tegra210-p3450-0000.dts b/arch/arm/dts/tegra210-p3450-0000.dts
new file mode 100644
index 0000000..9ef744a
--- /dev/null
+++ b/arch/arm/dts/tegra210-p3450-0000.dts
@@ -0,0 +1,147 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ *  (C) Copyright 2019-2020 NVIDIA Corporation <www.nvidia.com>
+ */
+/dts-v1/;
+
+#include "tegra210.dtsi"
+
+/ {
+	model = "NVIDIA Jetson Nano Developer Kit";
+	compatible = "nvidia,p3450-0000", "nvidia,tegra210";
+
+	chosen {
+		stdout-path = &uarta;
+	};
+
+	aliases {
+		ethernet = "/pcie@1003000/pci@2,0/ethernet@0,0";
+		i2c0 = "/i2c@7000d000";
+		i2c2 = "/i2c@7000c400";
+		i2c3 = "/i2c@7000c500";
+		i2c4 = "/i2c@7000c700";
+		mmc0 = "/sdhci@700b0600";
+		mmc1 = "/sdhci@700b0000";
+		spi0 = "/spi@70410000";
+		usb0 = "/usb@7d000000";
+	};
+
+	memory {
+		reg = <0x0 0x80000000 0x0 0xc0000000>;
+	};
+
+	pcie@1003000 {
+		status = "okay";
+
+		pci@1,0 {
+			status = "okay";
+		};
+
+		pci@2,0 {
+			status = "okay";
+
+			ethernet@0,0 {
+				reg = <0x000000 0 0 0 0>;
+				local-mac-address = [ 00 00 00 00 00 00 ];
+			};
+		};
+	};
+
+	serial@70006000 {
+		status = "okay";
+	};
+
+	padctl@7009f000 {
+		pinctrl-0 = <&padctl_default>;
+		pinctrl-names = "default";
+
+		padctl_default: pinmux {
+			xusb {
+				nvidia,lanes = "otg-1", "otg-2";
+				nvidia,function = "xusb";
+				nvidia,iddq = <0>;
+			};
+
+			usb3 {
+				nvidia,lanes = "pcie-5", "pcie-6";
+				nvidia,function = "usb3";
+				nvidia,iddq = <0>;
+			};
+
+			pcie-x1 {
+				nvidia,lanes = "pcie-0";
+				nvidia,function = "pcie-x1";
+				nvidia,iddq = <0>;
+			};
+
+			pcie-x4 {
+				nvidia,lanes = "pcie-1", "pcie-2",
+					       "pcie-3", "pcie-4";
+				nvidia,function = "pcie-x4";
+				nvidia,iddq = <0>;
+			};
+
+			sata {
+				nvidia,lanes = "sata-0";
+				nvidia,function = "sata";
+				nvidia,iddq = <0>;
+			};
+		};
+	};
+
+	sdhci@700b0000 {
+		status = "okay";
+		cd-gpios = <&gpio TEGRA_GPIO(Z, 1) GPIO_ACTIVE_LOW>;
+		power-gpios = <&gpio TEGRA_GPIO(Z, 3) GPIO_ACTIVE_HIGH>;
+		bus-width = <4>;
+	};
+
+	sdhci@700b0600 {
+		status = "okay";
+		bus-width = <8>;
+		non-removable;
+	};
+
+	i2c@7000c400 {
+		status = "okay";
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000c500 {
+		status = "okay";
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000c700 {
+		status = "okay";
+		clock-frequency = <400000>;
+	};
+
+	i2c@7000d000 {
+		status = "okay";
+		clock-frequency = <400000>;
+	};
+
+	spi@70410000 {
+		status = "okay";
+		spi-max-frequency = <80000000>;
+	};
+
+	usb@7d000000 {
+		status = "okay";
+		dr_mode = "peripheral";
+	};
+
+	clocks {
+		compatible = "simple-bus";
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		clk32k_in: clock@0 {
+			compatible = "fixed-clock";
+			reg = <0>;
+			#clock-cells = <0>;
+			clock-frequency = <32768>;
+		};
+	};
+};
diff --git a/arch/arm/mach-tegra/board2.c b/arch/arm/mach-tegra/board2.c
index 787ff97..224efc9 100644
--- a/arch/arm/mach-tegra/board2.c
+++ b/arch/arm/mach-tegra/board2.c
@@ -217,6 +217,31 @@ int board_early_init_f(void)
 		arch_timer_init();
 #endif
 
+#if defined(CONFIG_DISABLE_SDMMC1_EARLY)
+	/*
+	 * Turn off (reset/disable) SDMMC1 on Nano here, before GPIO INIT.
+	 * We do this because earlier bootloaders have enabled power to
+	 * SDMMC1 on Nano, and toggling power-gpio (PZ3) in pinmux_init()
+	 * results in power being back-driven into the SD-card and SDMMC1
+	 * HW, which is 'bad' as per the HW team.
+	 *
+	 * From the HW team: "LDO2 from the PMIC has already been set to 3.3v in
+	 * nvtboot/CBoot on Nano (for SD-card boot). So when U-Boot's GPIO_INIT
+	 * table sets PZ3 to OUT0 as per the pinmux spreadsheet, it turns off
+	 * the loadswitch. When PZ3 is 0 and not driving, essentially the SDCard
+	 * voltage turns off. Since the SDCard voltage is no longer there, the
+	 * SDMMC CLK/DAT lines are backdriving into what essentially is a
+	 * powered-off SDCard, that's why the voltage drops from 3.3V to ~1.6V"
+	 *
+	 * Note that this can probably be removed when we change over to storing
+	 * all BL components on QSPI on Nano, and U-Boot then becomes the first
+	 * one to turn on SDMMC1 power. Another fix would be to have CBoot
+	 * disable power/gate SDMMC1 off before handing off to U-Boot/kernel.
+	 */
+	reset_set_enable(PERIPH_ID_SDMMC1, 1);
+	clock_set_enable(PERIPH_ID_SDMMC1, 0);
+#endif	/* CONFIG_DISABLE_SDMMC1_EARLY */
+
 	pinmux_init();
 	board_init_uart_f();
 
diff --git a/arch/arm/mach-tegra/tegra210/Kconfig b/arch/arm/mach-tegra/tegra210/Kconfig
index 3637473..97ed8e0 100644
--- a/arch/arm/mach-tegra/tegra210/Kconfig
+++ b/arch/arm/mach-tegra/tegra210/Kconfig
@@ -35,6 +35,12 @@ config TARGET_P2571
 	help
 	  P2571 is a P2530 married to a P1963 I/O board
 
+config TARGET_P3450_0000
+	bool "NVIDIA Jetson Nano Developer Kit"
+	select BOARD_LATE_INIT
+	help
+	  P3450-0000 is a P3448 CPU board married to a P3449 I/O board.
+
 endchoice
 
 config SYS_SOC
@@ -44,5 +50,6 @@ source "board/nvidia/e2220-1170/Kconfig"
 source "board/nvidia/p2371-0000/Kconfig"
 source "board/nvidia/p2371-2180/Kconfig"
 source "board/nvidia/p2571/Kconfig"
+source "board/nvidia/p3450-0000/Kconfig"
 
 endif
diff --git a/board/nvidia/p3450-0000/Kconfig b/board/nvidia/p3450-0000/Kconfig
new file mode 100644
index 0000000..7a08cd8
--- /dev/null
+++ b/board/nvidia/p3450-0000/Kconfig
@@ -0,0 +1,12 @@
+if TARGET_P3450_0000
+
+config SYS_BOARD
+	default "p3450-0000"
+
+config SYS_VENDOR
+	default "nvidia"
+
+config SYS_CONFIG_NAME
+	default "p3450-0000"
+
+endif
diff --git a/board/nvidia/p3450-0000/MAINTAINERS b/board/nvidia/p3450-0000/MAINTAINERS
new file mode 100644
index 0000000..4070006
--- /dev/null
+++ b/board/nvidia/p3450-0000/MAINTAINERS
@@ -0,0 +1,6 @@
+P3450-0000 BOARD
+M:	Tom Warren <twarren@nvidia.com>
+S:	Maintained
+F:	board/nvidia/p3450-0000/
+F:	include/configs/p3450-0000.h
+F:	configs/p3450-0000_defconfig
diff --git a/board/nvidia/p3450-0000/Makefile b/board/nvidia/p3450-0000/Makefile
new file mode 100644
index 0000000..993c506
--- /dev/null
+++ b/board/nvidia/p3450-0000/Makefile
@@ -0,0 +1,8 @@
+#
+# (C) Copyright 2018
+# NVIDIA Corporation <www.nvidia.com>
+#
+# SPDX-License-Identifier:     GPL-2.0+
+#
+
+obj-y	+= p3450-0000.o
diff --git a/board/nvidia/p3450-0000/p3450-0000.c b/board/nvidia/p3450-0000/p3450-0000.c
new file mode 100644
index 0000000..f4212ab
--- /dev/null
+++ b/board/nvidia/p3450-0000/p3450-0000.c
@@ -0,0 +1,178 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * (C) Copyright 2018-2019
+ * NVIDIA Corporation <www.nvidia.com>
+ *
+ */
+
+#include <common.h>
+#include <fdtdec.h>
+#include <i2c.h>
+#include <linux/libfdt.h>
+#include <pca953x.h>
+#include <asm/arch-tegra/cboot.h>
+#include <asm/arch/gpio.h>
+#include <asm/arch/pinmux.h>
+#include "../p2571/max77620_init.h"
+
+void pin_mux_mmc(void)
+{
+	struct udevice *dev;
+	uchar val;
+	int ret;
+
+	/* Turn on MAX77620 LDO2 to 3.3V for SD card power */
+	debug("%s: Set LDO2 for VDDIO_SDMMC_AP power to 3.3V\n", __func__);
+	ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
+	if (ret) {
+		printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
+		return;
+	}
+	/* 0xF2 for 3.3v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
+	val = 0xF2;
+	ret = dm_i2c_write(dev, MAX77620_CNFG1_L2_REG, &val, 1);
+	if (ret)
+		printf("i2c_write 0 0x3c 0x27 failed: %d\n", ret);
+
+	/* Disable LDO4 discharge */
+	ret = dm_i2c_read(dev, MAX77620_CNFG2_L4_REG, &val, 1);
+	if (ret) {
+		printf("i2c_read 0 0x3c 0x2c failed: %d\n", ret);
+	} else {
+		val &= ~BIT(1); /* ADE */
+		ret = dm_i2c_write(dev, MAX77620_CNFG2_L4_REG, &val, 1);
+		if (ret)
+			printf("i2c_write 0 0x3c 0x2c failed: %d\n", ret);
+	}
+
+	/* Set MBLPD */
+	ret = dm_i2c_read(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
+	if (ret) {
+		printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
+	} else {
+		val |= BIT(6); /* MBLPD */
+		ret = dm_i2c_write(dev, MAX77620_CNFGGLBL1_REG, &val, 1);
+		if (ret)
+			printf("i2c_write 0 0x3c 0x00 failed: %d\n", ret);
+	}
+}
+
+#ifdef CONFIG_PCI_TEGRA
+int tegra_pcie_board_init(void)
+{
+	struct udevice *dev;
+	uchar val;
+	int ret;
+
+	/* Turn on MAX77620 LDO1 to 1.05V for PEX power */
+	debug("%s: Set LDO1 for PEX power to 1.05V\n", __func__);
+	ret = i2c_get_chip_for_busnum(0, MAX77620_I2C_ADDR_7BIT, 1, &dev);
+	if (ret) {
+		printf("%s: Cannot find MAX77620 I2C chip\n", __func__);
+		return -1;
+	}
+	/* 0xCA for 1.05v, enabled: bit7:6 = 11 = enable, bit5:0 = voltage */
+	val = 0xCA;
+	ret = dm_i2c_write(dev, MAX77620_CNFG1_L1_REG, &val, 1);
+	if (ret)
+		printf("i2c_write 0 0x3c 0x25 failed: %d\n", ret);
+
+	return 0;
+}
+#endif /* PCI */
+
+static void ft_mac_address_setup(void *fdt)
+{
+	const void *cboot_fdt = (const void *)cboot_boot_x0;
+	uint8_t mac[ETH_ALEN], local_mac[ETH_ALEN];
+	const char *path;
+	int offset, err;
+
+	err = cboot_get_ethaddr(cboot_fdt, local_mac);
+	if (err < 0)
+		memset(local_mac, 0, ETH_ALEN);
+
+	path = fdt_get_alias(fdt, "ethernet");
+	if (!path)
+		return;
+
+	debug("ethernet alias found: %s\n", path);
+
+	offset = fdt_path_offset(fdt, path);
+	if (offset < 0) {
+		printf("ethernet alias points to absent node %s\n", path);
+		return;
+	}
+
+	if (is_valid_ethaddr(local_mac)) {
+		err = fdt_setprop(fdt, offset, "local-mac-address", local_mac,
+				  ETH_ALEN);
+		if (!err)
+			debug("Local MAC address set: %pM\n", local_mac);
+	}
+
+	if (eth_env_get_enetaddr("ethaddr", mac)) {
+		if (memcmp(local_mac, mac, ETH_ALEN) != 0) {
+			err = fdt_setprop(fdt, offset, "mac-address", mac,
+					  ETH_ALEN);
+			if (!err)
+				debug("MAC address set: %pM\n", mac);
+		}
+	}
+}
+
+static int ft_copy_carveout(void *dst, const void *src, const char *node)
+{
+	struct fdt_memory fb;
+	int err;
+
+	err = fdtdec_get_carveout(src, node, "memory-region", 0, &fb);
+	if (err < 0) {
+		if (err != -FDT_ERR_NOTFOUND)
+			printf("failed to get carveout for %s: %d\n", node,
+			       err);
+
+		return err;
+	}
+
+	err = fdtdec_set_carveout(dst, node, "memory-region", 0, "framebuffer",
+				  &fb);
+	if (err < 0) {
+		printf("failed to set carveout for %s: %d\n", node, err);
+		return err;
+	}
+
+	return 0;
+}
+
+static void ft_carveout_setup(void *fdt)
+{
+	const void *cboot_fdt = (const void *)cboot_boot_x0;
+	static const char * const nodes[] = {
+		"/host1x@50000000/dc@54200000",
+		"/host1x@50000000/dc@54240000",
+	};
+	unsigned int i;
+	int err;
+
+	for (i = 0; i < ARRAY_SIZE(nodes); i++) {
+		printf("copying carveout for %s...\n", nodes[i]);
+
+		err = ft_copy_carveout(fdt, cboot_fdt, nodes[i]);
+		if (err < 0) {
+			if (err != -FDT_ERR_NOTFOUND)
+				printf("failed to copy carveout for %s: %d\n",
+				       nodes[i], err);
+
+			continue;
+		}
+	}
+}
+
+int ft_board_setup(void *fdt, bd_t *bd)
+{
+	ft_mac_address_setup(fdt);
+	ft_carveout_setup(fdt);
+
+	return 0;
+}
diff --git a/configs/p3450-0000_defconfig b/configs/p3450-0000_defconfig
new file mode 100644
index 0000000..c861d13
--- /dev/null
+++ b/configs/p3450-0000_defconfig
@@ -0,0 +1,64 @@
+CONFIG_ARM=y
+CONFIG_TEGRA=y
+CONFIG_SYS_TEXT_BASE=0x80080000
+CONFIG_TEGRA210=y
+CONFIG_TARGET_P3450_0000=y
+CONFIG_NR_DRAM_BANKS=2
+CONFIG_OF_SYSTEM_SETUP=y
+CONFIG_OF_BOARD_SETUP=y
+CONFIG_CONSOLE_MUX=y
+CONFIG_SYS_STDIO_DEREGISTER=y
+CONFIG_SYS_PROMPT="Tegra210 (P3450-0000) # "
+# CONFIG_CMD_IMI is not set
+CONFIG_CMD_DFU=y
+# CONFIG_CMD_FLASH is not set
+CONFIG_CMD_GPIO=y
+CONFIG_CMD_I2C=y
+CONFIG_CMD_MMC=y
+CONFIG_CMD_PCI=y
+CONFIG_CMD_SF=y
+CONFIG_CMD_SPI=y
+CONFIG_CMD_USB=y
+CONFIG_CMD_USB_MASS_STORAGE=y
+# CONFIG_CMD_SETEXPR is not set
+# CONFIG_CMD_NFS is not set
+CONFIG_CMD_EXT4_WRITE=y
+CONFIG_OF_LIVE=y
+CONFIG_DEFAULT_DEVICE_TREE="tegra210-p3450-0000"
+CONFIG_DFU_MMC=y
+CONFIG_DFU_RAM=y
+CONFIG_DFU_SF=y
+CONFIG_SYS_I2C_TEGRA=y
+CONFIG_SPI_FLASH=y
+CONFIG_SPI_FLASH_MACRONIX=y
+CONFIG_SPI_FLASH_USE_4K_SECTORS=y
+CONFIG_SF_DEFAULT_MODE=0
+CONFIG_SF_DEFAULT_SPEED=24000000
+CONFIG_RTL8169=y
+CONFIG_PCI=y
+CONFIG_DM_PCI=y
+CONFIG_DM_PCI_COMPAT=y
+CONFIG_PCI_TEGRA=y
+CONFIG_SYS_NS16550=y
+CONFIG_TEGRA114_SPI=y
+CONFIG_TEGRA210_QSPI=y
+CONFIG_USB=y
+CONFIG_DM_USB=y
+CONFIG_USB_EHCI_HCD=y
+CONFIG_USB_EHCI_TEGRA=y
+CONFIG_USB_GADGET=y
+CONFIG_USB_GADGET_MANUFACTURER="NVIDIA"
+CONFIG_USB_GADGET_VENDOR_NUM=0x0955
+CONFIG_USB_GADGET_PRODUCT_NUM=0x701a
+CONFIG_CI_UDC=y
+CONFIG_USB_GADGET_DOWNLOAD=y
+CONFIG_USB_HOST_ETHER=y
+CONFIG_USB_ETHER_ASIX=y
+# CONFIG_ENV_IS_IN_MMC is not set
+CONFIG_ENV_IS_IN_SPI_FLASH=y
+CONFIG_ENV_SIZE=0x2000
+CONFIG_ENV_SECT_SIZE=0x1000
+CONFIG_ENV_OFFSET=0xFFFFE000
+CONFIG_BOOTP_PREFER_SERVERIP=y
+CONFIG_DISABLE_SDMMC1_EARLY=y
+CONFIG_NVME=y
diff --git a/include/configs/p3450-0000.h b/include/configs/p3450-0000.h
new file mode 100644
index 0000000..7f05beb
--- /dev/null
+++ b/include/configs/p3450-0000.h
@@ -0,0 +1,46 @@
+/* SPDX-License-Identifier: GPL-2.0+ */
+/*
+ * (C) Copyright 2018-2019 NVIDIA Corporation.
+ */
+
+#ifndef _P3450_0000_H
+#define _P3450_0000_H
+
+#include <linux/sizes.h>
+
+#include "tegra210-common.h"
+
+/* High-level configuration options */
+#define CONFIG_TEGRA_BOARD_STRING	"NVIDIA P3450-0000"
+
+/* Board-specific serial config */
+#define CONFIG_TEGRA_ENABLE_UARTA
+
+/* Only MMC/PXE/DHCP for now, add USB back in later when supported */
+#define BOOT_TARGET_DEVICES(func) \
+	func(MMC, mmc, 1) \
+	func(MMC, mmc, 0) \
+	func(PXE, pxe, na) \
+	func(DHCP, dhcp, na)
+
+/* Environment at end of QSPI, in the VER partition */
+#define CONFIG_ENV_SPI_MAX_HZ		48000000
+#define CONFIG_ENV_SPI_MODE		SPI_MODE_0
+#define CONFIG_SPI_FLASH_SIZE		(4 << 20)
+
+#define CONFIG_PREBOOT
+
+#define BOARD_EXTRA_ENV_SETTINGS \
+	"preboot=if test -e mmc 1:1 /u-boot-preboot.scr; then " \
+		"load mmc 1:1 ${scriptaddr} /u-boot-preboot.scr; " \
+		"source ${scriptaddr}; " \
+	"fi\0"
+
+/* General networking support */
+#include "tegra-common-usb-gadget.h"
+#include "tegra-common-post.h"
+
+/* Crystal is 38.4MHz. clk_m runs at half that rate */
+#define COUNTER_FREQUENCY	19200000
+
+#endif /* _P3450_0000_H */
