diff --git a/src/bsp/lk/app/lpcboot/lpcboot.c b/src/bsp/lk/app/lpcboot/lpcboot.c
new file mode 100644
index 0000000..fcd0593
--- /dev/null
+++ b/src/bsp/lk/app/lpcboot/lpcboot.c
@@ -0,0 +1,325 @@
+/*
+ * Copyright (c) 2015 Brian Swetland
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files
+ * (the "Software"), to deal in the Software without restriction,
+ * including without limitation the rights to use, copy, modify, merge,
+ * publish, distribute, sublicense, and/or sell copies of the Software,
+ * and to permit persons to whom the Software is furnished to do so,
+ * subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include <app.h>
+#include <err.h>
+#include <debug.h>
+#include <string.h>
+#include <stdlib.h>
+#include <printf.h>
+#include <dev/udc.h>
+
+#include <platform.h>
+#include <arch/arm.h>
+#include <kernel/thread.h>
+#include <kernel/event.h>
+#include <kernel/timer.h>
+
+#include <platform/lpc43xx-gpio.h>
+
+#define PIN_LED		PIN(1,1)
+#define GPIO_LED	GPIO(0,8)
+
+void spifi_init(void);
+void spifi_page_program(u32 addr, u32 *ptr, u32 count);
+void spifi_sector_erase(u32 addr);
+int spifi_verify_erased(u32 addr, u32 count);
+int spifi_verify_page(u32 addr, u32 *ptr);
+
+static event_t txevt = EVENT_INITIAL_VALUE(txevt, 0, 0);
+static event_t rxevt = EVENT_INITIAL_VALUE(rxevt, 0, 0);
+
+static udc_request_t *txreq;
+static udc_request_t *rxreq;
+static udc_endpoint_t *txept;
+static udc_endpoint_t *rxept;
+
+static volatile int online;
+static volatile int txstatus;
+static volatile int rxstatus;
+static volatile unsigned rxactual;
+
+static void lpcboot_notify(udc_gadget_t *gadget, unsigned event) {
+	if (event == UDC_EVENT_ONLINE) {
+		online = 1;
+	} else {
+		online = 0;
+	}
+}
+
+static void rx_complete(udc_request_t *req, unsigned actual, int status) {
+	rxactual = actual;
+	rxstatus = status;
+	event_signal(&rxevt, 0);
+}
+
+static void tx_complete(udc_request_t *req, unsigned actual, int status) {
+	txstatus = status;
+	event_signal(&txevt, 0);
+}
+
+void usb_xmit(void *data, unsigned len) {
+	event_unsignal(&txevt);
+	txreq->buffer = data;
+	txreq->length = len;
+	txstatus = 1;
+	udc_request_queue(txept, txreq);
+	event_wait(&txevt);
+}
+
+int usb_recv(void *data, unsigned len, lk_time_t timeout) {
+	event_unsignal(&rxevt);
+	rxreq->buffer = data;
+	rxreq->length = len;
+	rxstatus = 1;
+	udc_request_queue(rxept, rxreq);
+	if (event_wait_timeout(&rxevt, timeout)) {
+		return ERR_TIMED_OUT;
+	}
+	return rxactual;
+}
+
+static udc_device_t lpcboot_device = {
+	.vendor_id = 0x1209,
+	.product_id = 0x5039,
+	.version_id = 0x0100,
+};
+
+static udc_endpoint_t *lpcboot_endpoints[2];
+
+static udc_gadget_t lpcboot_gadget = {
+	.notify = lpcboot_notify,
+	.ifc_class = 0xFF,
+	.ifc_subclass = 0xFF,
+	.ifc_protocol = 0xFF,
+	.ifc_endpoints = 2,
+	.ept = lpcboot_endpoints,
+};
+
+static void lpcboot_init(const struct app_descriptor *app)
+{
+	udc_init(&lpcboot_device);
+	lpcboot_endpoints[0] = txept = udc_endpoint_alloc(UDC_BULK_IN, 512);
+	lpcboot_endpoints[1] = rxept = udc_endpoint_alloc(UDC_BULK_OUT, 512);
+	txreq = udc_request_alloc();
+	rxreq = udc_request_alloc();
+	rxreq->complete = rx_complete;
+	txreq->complete = tx_complete;
+	udc_register_gadget(&lpcboot_gadget);
+}
+
+#define RAM_BASE	0x10000000
+#define RAM_SIZE	(128 * 1024)
+
+#define BOOT_BASE	0
+#define BOOT_SIZE	(32 * 1024)
+
+#define ROM_BASE	(32 * 1024)
+#define ROM_SIZE	(128 * 1024)
+
+struct device_info {
+	u8 part[16];
+	u8 board[16];
+	u32 version;
+	u32 ram_base;
+	u32 ram_size;
+	u32 rom_base;
+	u32 rom_size;
+	u32 unused0;
+	u32 unused1;
+	u32 unused2;
+};
+
+struct device_info DEVICE = {
+	.part = "LPC43xx",
+	.board = TARGET,
+	.version = 0x0001000,
+	.ram_base = RAM_BASE,
+	.ram_size = RAM_SIZE,
+	.rom_base = ROM_BASE,
+	.rom_size = ROM_SIZE,
+};
+
+
+#define MAGIC1		0xAA113377
+#define MAGIC2		0xAA773311
+#define MAGIC1_ADDR	0x20003FF8
+#define MAGIC2_ADDR	0x20003FFC
+
+void boot_app(void) {
+	writel(MAGIC1, MAGIC1_ADDR);
+	writel(MAGIC2, MAGIC2_ADDR);
+}
+
+int erase_page(u32 addr) {
+	spifi_sector_erase(addr);
+	return spifi_verify_erased(addr, 0x1000/4);
+}
+
+int write_page(u32 addr, void *ptr) {
+	unsigned n;
+	u32 *x = ptr;
+	for (n = 0; n < 16; n++) {
+		spifi_page_program(addr, x, 256 / 4);
+		if (spifi_verify_page(addr, x)) return -1;
+		addr += 256;
+		x += (256 / 4);
+	}
+	return 0;
+}
+
+static uint32_t ram[4096/4];
+
+void handle(u32 magic, u32 cmd, u32 arg) {
+	u32 reply[2];
+	u32 addr, xfer;
+	int err = 0;
+
+	if (magic != 0xDB00A5A5)
+		return;
+
+	reply[0] = magic;
+	reply[1] = -1;
+
+	switch (cmd) {
+	case 'E':
+		reply[1] = erase_page(ROM_BASE);
+		break;
+	case 'W':
+	case 'w':
+		if (cmd == 'W') {
+			if (arg > ROM_SIZE)
+				break;
+			addr = ROM_BASE;
+		} else {
+			if (arg > BOOT_SIZE)
+				break;
+			addr = BOOT_BASE;
+		}
+		reply[1] = 0;
+		usb_xmit(reply, 8);
+		while (arg > 0) {
+			xfer = (arg > 4096) ? 4096 : arg;
+			usb_recv(ram, xfer, INFINITE_TIME);
+			if (!err) err = erase_page(addr);
+			if (!err) err = write_page(addr, ram);
+			addr += 4096;
+			arg -= xfer;
+		}
+		printf("flash %s\n", err ? "ERROR" : "OK");
+		reply[1] = err;
+		break;
+#if WITH_BOOT_TO_RAM
+	case 'X':
+		if (arg > RAM_SIZE)
+			break;
+		reply[1] = 0;
+		usb_xmit(reply, 8);
+		usb_recv(ram, arg);
+		usb_xmit(reply, 8);
+
+		/* let last txn clear */
+		usb_recv_timeout(buf, 64, 10);
+
+		boot_image(ram);
+		break;
+#endif
+	case 'Q':
+		reply[1] = 0;
+		usb_xmit(reply, 8);
+		usb_xmit(&DEVICE, sizeof(DEVICE));
+		return;
+	case 'A':
+		boot_app();
+	case 'R':
+		/* reboot "normally" */
+		reply[1] = 0;
+		usb_xmit(reply, 8);
+		udc_stop();
+		platform_halt(HALT_ACTION_REBOOT, HALT_REASON_SW_RESET);
+	default:
+		break;
+	}
+	usb_xmit(reply, 8);
+}
+
+static short led_idx = 0;
+static short led_delay[] = { 500, 100, 100, 100, };
+static short led_state[] = {   1,   0,   1,   0, };
+static timer_t led_timer = TIMER_INITIAL_VALUE(led_timer);
+
+static enum handler_return led_timer_cb(timer_t *timer, lk_time_t now, void *arg) {
+	gpio_set(GPIO_LED, led_state[led_idx]);
+	timer_set_oneshot(timer, led_delay[led_idx], led_timer_cb, NULL);
+	led_idx++;
+	if (led_idx == (sizeof(led_state)/sizeof(led_state[0]))) {
+		led_idx = 0;
+	}
+	return 0;
+}
+
+static void lpcboot_entry(const struct app_descriptor *app, void *args)
+{
+	lk_time_t timeout;
+	int r;
+	u32 buf[64/4];
+
+#if 0
+	timeout = INFINITE_TIME;
+#else
+	if (readl(32768) != 0) {
+		timeout = 3000;
+	} else {
+		timeout = INFINITE_TIME;
+	}
+#endif
+
+	pin_config(PIN_LED, PIN_MODE(0) | PIN_PLAIN);
+	gpio_config(GPIO_LED, GPIO_OUTPUT);
+	led_timer_cb(&led_timer, 0, NULL);
+
+	udc_start();
+	spifi_init();
+	for (;;) {
+		if (!online) {
+			thread_yield();
+			continue;
+		}
+		r = usb_recv(buf, 64, timeout);
+		if (r == ERR_TIMED_OUT) {
+			boot_app();
+			platform_halt(HALT_ACTION_REBOOT, HALT_REASON_SW_RESET);
+		}
+		if (r == 12) {
+			handle(buf[0], buf[1], buf[2]);
+			timeout = INFINITE_TIME;
+		}
+	}
+}
+
+APP_START(usbtest)
+	.init = lpcboot_init,
+	.entry = lpcboot_entry,
+APP_END
+
+