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+/*
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+ * hal_lpc134x.c
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+ *
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+ * Created on: Dec 2, 2012
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+ * Author: hathach
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+ */
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+
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+/*
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+ * Software License Agreement (BSD License)
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+ * Copyright (c) 2012, hathach (tinyusb.net)
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+ * All rights reserved.
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+ *
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+ * Redistribution and use in source and binary forms, with or without modification,
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+ * are permitted provided that the following conditions are met:
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+ *
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+ * 1. Redistributions of source code must retain the above copyright notice,
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+ * this list of conditions and the following disclaimer.
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+ * 2. Redistributions in binary form must reproduce the above copyright notice,
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+ * this list of conditions and the following disclaimer in the documentation
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+ * and/or other materials provided with the distribution.
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+ * 3. The name of the author may not be used to endorse or promote products
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+ * derived from this software without specific prior written permission.
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+ *
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+ * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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+ * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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+ * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
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+ * SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT
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+ * OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
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+ * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
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+ * OF SUCH DAMAGE.
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+ *
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+ * This file is part of the tiny usb stack.
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+ */
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+
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+#include "common/common.h"
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+
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+#ifdef ARCH_LPC134X
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+
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+TUSB_Error_t hal_init()
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+{
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+ // TODO usb abstract later
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+ /* Enable AHB clock to the USB block and USB RAM. */
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+ LPC_SYSCON->SYSAHBCLKCTRL |= ((0x1<<14) | (0x1<<27));
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+
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+ /* Pull-down is needed, or internally, VBUS will be floating. This is to
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+ address the wrong status in VBUSDebouncing bit in CmdStatus register. */
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+ LPC_IOCON->PIO0_3 &= ~0x1F;
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+ LPC_IOCON->PIO0_3 |= (0x01<<0); /* Secondary function VBUS */
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+ LPC_IOCON->PIO0_6 &= ~0x07;
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+ LPC_IOCON->PIO0_6 |= (0x01<<0); /* Secondary function SoftConn */
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+
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+ return tERROR_NONE;
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+}
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+
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+#endif
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