add tinyusb

10 files changed, 2456 insertions, 0 deletions

diff --git a/tinyusb/hw/mcu/sony/cxd56/mkspk/.gitignore b/tinyusb/hw/mcu/sony/cxd56/mkspk/.gitignore
new file mode 100755
index 00000000..4c3d12e3
--- /dev/null
+++ b/tinyusb/hw/mcu/sony/cxd56/mkspk/.gitignore
@@ -0,0 +1,2 @@
+/mkspk
+/mkspk.exe
diff --git a/tinyusb/hw/mcu/sony/cxd56/mkspk/Makefile b/tinyusb/hw/mcu/sony/cxd56/mkspk/Makefile
new file mode 100755
index 00000000..d91d17a3
--- /dev/null
+++ b/tinyusb/hw/mcu/sony/cxd56/mkspk/Makefile
@@ -0,0 +1,51 @@
+############################################################################
+# tools/mkspk/Makefile
+#
+#   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
+#   Author: Gregory Nutt <gnutt@nuttx.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+############################################################################
+
+all: mkspk
+default: mkspk
+.PHONY: clean
+
+# Add CFLAGS=-g on the make command line to build debug versions
+
+CFLAGS = -O2 -Wall -I.
+
+# mkspk - Convert nuttx.hex image to nuttx.spk image
+
+mkspk:
+	@gcc $(CFLAGS) -o mkspk mkspk.c clefia.c
+
+clean:
+	@rm -f *.o *.a *.dSYM *~ .*.swp
+	@rm -f mkspk mkspk.exe
diff --git a/tinyusb/hw/mcu/sony/cxd56/mkspk/clefia.c b/tinyusb/hw/mcu/sony/cxd56/mkspk/clefia.c
new file mode 100755
index 00000000..02a17550
--- /dev/null
+++ b/tinyusb/hw/mcu/sony/cxd56/mkspk/clefia.c
@@ -0,0 +1,517 @@
+/****************************************************************************
+ * tools/cxd56/clefia.c
+ *
+ * Copyright (C) 2007, 2008 Sony Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <assert.h>
+
+#include "clefia.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define clefiamul4(_x) (clefiamul2(clefiamul2((_x))))
+#define clefiamul6(_x) (clefiamul2((_x)) ^ clefiamul4((_x)))
+#define clefiamul8(_x) (clefiamul2(clefiamul4((_x))))
+#define clefiamula(_x) (clefiamul2((_x)) ^ clefiamul8((_x)))
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+/* S0 (8-bit S-box based on four 4-bit S-boxes) */
+
+static const unsigned char clefia_s0[256] =
+{
+  0x57u, 0x49u, 0xd1u, 0xc6u, 0x2fu, 0x33u, 0x74u, 0xfbu,
+  0x95u, 0x6du, 0x82u, 0xeau, 0x0eu, 0xb0u, 0xa8u, 0x1cu,
+  0x28u, 0xd0u, 0x4bu, 0x92u, 0x5cu, 0xeeu, 0x85u, 0xb1u,
+  0xc4u, 0x0au, 0x76u, 0x3du, 0x63u, 0xf9u, 0x17u, 0xafu,
+  0xbfu, 0xa1u, 0x19u, 0x65u, 0xf7u, 0x7au, 0x32u, 0x20u,
+  0x06u, 0xceu, 0xe4u, 0x83u, 0x9du, 0x5bu, 0x4cu, 0xd8u,
+  0x42u, 0x5du, 0x2eu, 0xe8u, 0xd4u, 0x9bu, 0x0fu, 0x13u,
+  0x3cu, 0x89u, 0x67u, 0xc0u, 0x71u, 0xaau, 0xb6u, 0xf5u,
+  0xa4u, 0xbeu, 0xfdu, 0x8cu, 0x12u, 0x00u, 0x97u, 0xdau,
+  0x78u, 0xe1u, 0xcfu, 0x6bu, 0x39u, 0x43u, 0x55u, 0x26u,
+  0x30u, 0x98u, 0xccu, 0xddu, 0xebu, 0x54u, 0xb3u, 0x8fu,
+  0x4eu, 0x16u, 0xfau, 0x22u, 0xa5u, 0x77u, 0x09u, 0x61u,
+  0xd6u, 0x2au, 0x53u, 0x37u, 0x45u, 0xc1u, 0x6cu, 0xaeu,
+  0xefu, 0x70u, 0x08u, 0x99u, 0x8bu, 0x1du, 0xf2u, 0xb4u,
+  0xe9u, 0xc7u, 0x9fu, 0x4au, 0x31u, 0x25u, 0xfeu, 0x7cu,
+  0xd3u, 0xa2u, 0xbdu, 0x56u, 0x14u, 0x88u, 0x60u, 0x0bu,
+  0xcdu, 0xe2u, 0x34u, 0x50u, 0x9eu, 0xdcu, 0x11u, 0x05u,
+  0x2bu, 0xb7u, 0xa9u, 0x48u, 0xffu, 0x66u, 0x8au, 0x73u,
+  0x03u, 0x75u, 0x86u, 0xf1u, 0x6au, 0xa7u, 0x40u, 0xc2u,
+  0xb9u, 0x2cu, 0xdbu, 0x1fu, 0x58u, 0x94u, 0x3eu, 0xedu,
+  0xfcu, 0x1bu, 0xa0u, 0x04u, 0xb8u, 0x8du, 0xe6u, 0x59u,
+  0x62u, 0x93u, 0x35u, 0x7eu, 0xcau, 0x21u, 0xdfu, 0x47u,
+  0x15u, 0xf3u, 0xbau, 0x7fu, 0xa6u, 0x69u, 0xc8u, 0x4du,
+  0x87u, 0x3bu, 0x9cu, 0x01u, 0xe0u, 0xdeu, 0x24u, 0x52u,
+  0x7bu, 0x0cu, 0x68u, 0x1eu, 0x80u, 0xb2u, 0x5au, 0xe7u,
+  0xadu, 0xd5u, 0x23u, 0xf4u, 0x46u, 0x3fu, 0x91u, 0xc9u,
+  0x6eu, 0x84u, 0x72u, 0xbbu, 0x0du, 0x18u, 0xd9u, 0x96u,
+  0xf0u, 0x5fu, 0x41u, 0xacu, 0x27u, 0xc5u, 0xe3u, 0x3au,
+  0x81u, 0x6fu, 0x07u, 0xa3u, 0x79u, 0xf6u, 0x2du, 0x38u,
+  0x1au, 0x44u, 0x5eu, 0xb5u, 0xd2u, 0xecu, 0xcbu, 0x90u,
+  0x9au, 0x36u, 0xe5u, 0x29u, 0xc3u, 0x4fu, 0xabu, 0x64u,
+  0x51u, 0xf8u, 0x10u, 0xd7u, 0xbcu, 0x02u, 0x7du, 0x8eu
+};
+
+/* S1 (8-bit S-box based on inverse function) */
+
+static const unsigned char clefia_s1[256] =
+{
+  0x6cu, 0xdau, 0xc3u, 0xe9u, 0x4eu, 0x9du, 0x0au, 0x3du,
+  0xb8u, 0x36u, 0xb4u, 0x38u, 0x13u, 0x34u, 0x0cu, 0xd9u,
+  0xbfu, 0x74u, 0x94u, 0x8fu, 0xb7u, 0x9cu, 0xe5u, 0xdcu,
+  0x9eu, 0x07u, 0x49u, 0x4fu, 0x98u, 0x2cu, 0xb0u, 0x93u,
+  0x12u, 0xebu, 0xcdu, 0xb3u, 0x92u, 0xe7u, 0x41u, 0x60u,
+  0xe3u, 0x21u, 0x27u, 0x3bu, 0xe6u, 0x19u, 0xd2u, 0x0eu,
+  0x91u, 0x11u, 0xc7u, 0x3fu, 0x2au, 0x8eu, 0xa1u, 0xbcu,
+  0x2bu, 0xc8u, 0xc5u, 0x0fu, 0x5bu, 0xf3u, 0x87u, 0x8bu,
+  0xfbu, 0xf5u, 0xdeu, 0x20u, 0xc6u, 0xa7u, 0x84u, 0xceu,
+  0xd8u, 0x65u, 0x51u, 0xc9u, 0xa4u, 0xefu, 0x43u, 0x53u,
+  0x25u, 0x5du, 0x9bu, 0x31u, 0xe8u, 0x3eu, 0x0du, 0xd7u,
+  0x80u, 0xffu, 0x69u, 0x8au, 0xbau, 0x0bu, 0x73u, 0x5cu,
+  0x6eu, 0x54u, 0x15u, 0x62u, 0xf6u, 0x35u, 0x30u, 0x52u,
+  0xa3u, 0x16u, 0xd3u, 0x28u, 0x32u, 0xfau, 0xaau, 0x5eu,
+  0xcfu, 0xeau, 0xedu, 0x78u, 0x33u, 0x58u, 0x09u, 0x7bu,
+  0x63u, 0xc0u, 0xc1u, 0x46u, 0x1eu, 0xdfu, 0xa9u, 0x99u,
+  0x55u, 0x04u, 0xc4u, 0x86u, 0x39u, 0x77u, 0x82u, 0xecu,
+  0x40u, 0x18u, 0x90u, 0x97u, 0x59u, 0xddu, 0x83u, 0x1fu,
+  0x9au, 0x37u, 0x06u, 0x24u, 0x64u, 0x7cu, 0xa5u, 0x56u,
+  0x48u, 0x08u, 0x85u, 0xd0u, 0x61u, 0x26u, 0xcau, 0x6fu,
+  0x7eu, 0x6au, 0xb6u, 0x71u, 0xa0u, 0x70u, 0x05u, 0xd1u,
+  0x45u, 0x8cu, 0x23u, 0x1cu, 0xf0u, 0xeeu, 0x89u, 0xadu,
+  0x7au, 0x4bu, 0xc2u, 0x2fu, 0xdbu, 0x5au, 0x4du, 0x76u,
+  0x67u, 0x17u, 0x2du, 0xf4u, 0xcbu, 0xb1u, 0x4au, 0xa8u,
+  0xb5u, 0x22u, 0x47u, 0x3au, 0xd5u, 0x10u, 0x4cu, 0x72u,
+  0xccu, 0x00u, 0xf9u, 0xe0u, 0xfdu, 0xe2u, 0xfeu, 0xaeu,
+  0xf8u, 0x5fu, 0xabu, 0xf1u, 0x1bu, 0x42u, 0x81u, 0xd6u,
+  0xbeu, 0x44u, 0x29u, 0xa6u, 0x57u, 0xb9u, 0xafu, 0xf2u,
+  0xd4u, 0x75u, 0x66u, 0xbbu, 0x68u, 0x9fu, 0x50u, 0x02u,
+  0x01u, 0x3cu, 0x7fu, 0x8du, 0x1au, 0x88u, 0xbdu, 0xacu,
+  0xf7u, 0xe4u, 0x79u, 0x96u, 0xa2u, 0xfcu, 0x6du, 0xb2u,
+  0x6bu, 0x03u, 0xe1u, 0x2eu, 0x7du, 0x14u, 0x95u, 0x1du
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static void bytecpy(unsigned char *dst, const unsigned char *src, int bytelen)
+{
+  while (bytelen-- > 0)
+    {
+      *dst++ = *src++;
+    }
+}
+
+static unsigned char clefiamul2(unsigned char x)
+{
+  /* multiplication over GF(2^8) (p(x) = '11d') */
+
+  if (x & 0x80u)
+    {
+      x ^= 0x0eu;
+    }
+
+  return ((x << 1) | (x >> 7));
+}
+
+static void clefiaf0xor(unsigned char *dst, const unsigned char *src,
+                        const unsigned char *rk)
+{
+  unsigned char x[4];
+  unsigned char y[4];
+  unsigned char z[4];
+
+  /* F0 */
+
+  /* Key addition */
+
+  bytexor(x, src, rk, 4);
+
+  /* Substitution layer */
+
+  z[0] = clefia_s0[x[0]];
+  z[1] = clefia_s1[x[1]];
+  z[2] = clefia_s0[x[2]];
+  z[3] = clefia_s1[x[3]];
+
+  /* Diffusion layer (M0) */
+
+  y[0] = z[0] ^ clefiamul2(z[1]) ^ clefiamul4(z[2]) ^ clefiamul6(z[3]);
+  y[1] = clefiamul2(z[0]) ^ z[1] ^ clefiamul6(z[2]) ^ clefiamul4(z[3]);
+  y[2] = clefiamul4(z[0]) ^ clefiamul6(z[1]) ^ z[2] ^ clefiamul2(z[3]);
+  y[3] = clefiamul6(z[0]) ^ clefiamul4(z[1]) ^ clefiamul2(z[2]) ^ z[3];
+
+  /* Xoring after F0 */
+
+  bytecpy(dst + 0, src + 0, 4);
+  bytexor(dst + 4, src + 4, y, 4);
+}
+
+static void clefiaf1xor(unsigned char *dst, const unsigned char *src,
+                        const unsigned char *rk)
+{
+  unsigned char x[4];
+  unsigned char y[4];
+  unsigned char z[4];
+
+  /* F1 */
+
+  /* Key addition */
+
+  bytexor(x, src, rk, 4);
+
+  /* Substitution layer */
+
+  z[0] = clefia_s1[x[0]];
+  z[1] = clefia_s0[x[1]];
+  z[2] = clefia_s1[x[2]];
+  z[3] = clefia_s0[x[3]];
+
+  /* Diffusion layer (M1) */
+
+  y[0] = z[0] ^ clefiamul8(z[1]) ^ clefiamul2(z[2]) ^ clefiamula(z[3]);
+  y[1] = clefiamul8(z[0]) ^ z[1] ^ clefiamula(z[2]) ^ clefiamul2(z[3]);
+  y[2] = clefiamul2(z[0]) ^ clefiamula(z[1]) ^ z[2] ^ clefiamul8(z[3]);
+  y[3] = clefiamula(z[0]) ^ clefiamul2(z[1]) ^ clefiamul8(z[2]) ^ z[3];
+
+  /* Xoring after F1 */
+
+  bytecpy(dst + 0, src + 0, 4);
+  bytexor(dst + 4, src + 4, y, 4);
+}
+
+static void clefiagfn4(unsigned char *y, const unsigned char *x,
+                       const unsigned char *rk, int r)
+{
+  unsigned char fin[16];
+  unsigned char fout[16];
+
+  bytecpy(fin, x, 16);
+  while (r-- > 0)
+    {
+      clefiaf0xor(fout + 0, fin + 0, rk + 0);
+      clefiaf1xor(fout + 8, fin + 8, rk + 4);
+      rk += 8;
+      if (r)
+        {
+          /* swapping for encryption */
+
+          bytecpy(fin + 0, fout + 4, 12);
+          bytecpy(fin + 12, fout + 0, 4);
+        }
+    }
+
+  bytecpy(y, fout, 16);
+}
+
+#if 0 /* Not used */
+static void clefiagfn8(unsigned char *y, const unsigned char *x,
+                       const unsigned char *rk, int r)
+{
+  unsigned char fin[32];
+  unsigned char fout[32];
+
+  bytecpy(fin, x, 32);
+  while (r-- > 0)
+    {
+      clefiaf0xor(fout + 0, fin + 0, rk + 0);
+      clefiaf1xor(fout + 8, fin + 8, rk + 4);
+      clefiaf0xor(fout + 16, fin + 16, rk + 8);
+      clefiaf1xor(fout + 24, fin + 24, rk + 12);
+      rk += 16;
+      if (r)
+        {
+          /* swapping for encryption */
+
+          bytecpy(fin + 0, fout + 4, 28);
+          bytecpy(fin + 28, fout + 0, 4);
+        }
+    }
+
+  bytecpy(y, fout, 32);
+}
+#endif
+
+#if 0 /* Not used */
+static void clefiagfn4inv(unsigned char *y, const unsigned char *x,
+                          const unsigned char *rk, int r)
+{
+  unsigned char fin[16];
+  unsigned char fout[16];
+
+  rk += (r - 1) * 8;
+  bytecpy(fin, x, 16);
+  while (r-- > 0)
+    {
+      clefiaf0xor(fout + 0, fin + 0, rk + 0);
+      clefiaf1xor(fout + 8, fin + 8, rk + 4);
+      rk -= 8;
+      if (r)
+        {
+          /* swapping for decryption */
+
+          bytecpy(fin + 0, fout + 12, 4);
+          bytecpy(fin + 4, fout + 0, 12);
+        }
+    }
+
+  bytecpy(y, fout, 16);
+}
+#endif
+
+static void clefiadoubleswap(unsigned char *lk)
+{
+  unsigned char t[16];
+
+  t[0] = (lk[0] << 7) | (lk[1] >> 1);
+  t[1] = (lk[1] << 7) | (lk[2] >> 1);
+  t[2] = (lk[2] << 7) | (lk[3] >> 1);
+  t[3] = (lk[3] << 7) | (lk[4] >> 1);
+  t[4] = (lk[4] << 7) | (lk[5] >> 1);
+  t[5] = (lk[5] << 7) | (lk[6] >> 1);
+  t[6] = (lk[6] << 7) | (lk[7] >> 1);
+  t[7] = (lk[7] << 7) | (lk[15] & 0x7fu);
+
+  t[8] = (lk[8] >> 7) | (lk[0] & 0xfeu);
+  t[9] = (lk[9] >> 7) | (lk[8] << 1);
+  t[10] = (lk[10] >> 7) | (lk[9] << 1);
+  t[11] = (lk[11] >> 7) | (lk[10] << 1);
+  t[12] = (lk[12] >> 7) | (lk[11] << 1);
+  t[13] = (lk[13] >> 7) | (lk[12] << 1);
+  t[14] = (lk[14] >> 7) | (lk[13] << 1);
+  t[15] = (lk[15] >> 7) | (lk[14] << 1);
+
+  bytecpy(lk, t, 16);
+}
+
+static void clefiaconset(unsigned char *con, const unsigned char *iv, int lk)
+{
+  unsigned char t[2];
+  unsigned char tmp;
+
+  bytecpy(t, iv, 2);
+  while (lk-- > 0)
+    {
+      con[0] = t[0] ^ 0xb7u;    /* P_16 = 0xb7e1 (natural logarithm) */
+      con[1] = t[1] ^ 0xe1u;
+      con[2] = ~((t[0] << 1) | (t[1] >> 7));
+      con[3] = ~((t[1] << 1) | (t[0] >> 7));
+      con[4] = ~t[0] ^ 0x24u;   /* Q_16 = 0x243f (circle ratio) */
+      con[5] = ~t[1] ^ 0x3fu;
+      con[6] = t[1];
+      con[7] = t[0];
+      con += 8;
+
+      /* updating T */
+
+      if (t[1] & 0x01u)
+        {
+          t[0] ^= 0xa8u;
+          t[1] ^= 0x30u;
+        }
+
+      tmp = t[0] << 7;
+      t[0] = (t[0] >> 1) | (t[1] << 7);
+      t[1] = (t[1] >> 1) | tmp;
+    }
+}
+
+static void left_shift_one(uint8_t * in, uint8_t * out)
+{
+  int i;
+  int overflow;
+
+  overflow = 0;
+  for (i = 15; i >= 0; i--)
+    {
+      out[i] = in[i] << 1;
+      out[i] |= overflow;
+      overflow = (in[i] >> 7) & 1;
+    }
+}
+
+static void gen_subkey(struct cipher *c)
+{
+  uint8_t L[16];
+
+  memset(L, 0, 16);
+  clefiaencrypt(L, L, c->rk, c->round);
+
+  left_shift_one(L, c->k1);
+  if (L[0] & 0x80)
+    {
+      c->k1[15] = c->k1[15] ^ 0x87;
+    }
+
+  left_shift_one(c->k1, c->k2);
+  if (c->k1[0] & 0x80)
+    {
+      c->k2[15] = c->k2[15] ^ 0x87;
+    }
+
+  memset(L, 0, 16);
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+struct cipher *cipher_init(uint8_t * key, uint8_t * iv)
+{
+  struct cipher *c;
+
+  c = (struct cipher *)malloc(sizeof(*c));
+  if (!c)
+    {
+      return NULL;
+    }
+
+  c->round = clefiakeyset(c->rk, key);
+
+  gen_subkey(c);
+  memset(c->vector, 0, 16);
+
+  return c;
+}
+
+void cipher_deinit(struct cipher *c)
+{
+  memset(c, 0, sizeof(*c));
+  free(c);
+}
+
+int cipher_calc_cmac(struct cipher *c, void *data, int size, void *cmac)
+{
+  uint8_t m[16];
+  uint8_t *p;
+
+  if (size & 0xf)
+    {
+      return -1;
+    }
+
+  p = (uint8_t *) data;
+  while (size)
+    {
+      bytexor(m, c->vector, p, 16);
+      clefiaencrypt(c->vector, m, c->rk, c->round);
+      size -= 16;
+      p += 16;
+    }
+
+  bytexor(cmac, m, c->k1, 16);
+  clefiaencrypt(cmac, cmac, c->rk, c->round);
+  memset(m, 0, 16);
+
+  return 0;
+}
+
+void bytexor(unsigned char *dst, const unsigned char *a,
+             const unsigned char *b, int bytelen)
+{
+  while (bytelen-- > 0)
+    {
+      *dst++ = *a++ ^ *b++;
+    }
+}
+
+int clefiakeyset(unsigned char *rk, const unsigned char *skey)
+{
+  const unsigned char iv[2] =
+  {
+    0x42u, 0x8au  /* cubic root of 2 */
+  };
+
+  unsigned char lk[16];
+  unsigned char con128[4 * 60];
+  int i;
+
+  /* generating CONi^(128) (0 <= i < 60, lk = 30) */
+
+  clefiaconset(con128, iv, 30);
+
+  /* GFN_{4,12} (generating L from K) */
+
+  clefiagfn4(lk, skey, con128, 12);
+
+  bytecpy(rk, skey, 8);    /* initial whitening key (WK0, WK1) */
+  rk += 8;
+  for (i = 0; i < 9; i++)
+    {
+      /* round key (RKi (0 <= i < 36)) */
+
+      bytexor(rk, lk, con128 + i * 16 + (4 * 24), 16);
+      if (i % 2)
+        {
+          bytexor(rk, rk, skey, 16);    /* Xoring K */
+        }
+
+      clefiadoubleswap(lk);     /* Updating L (DoubleSwap function) */
+      rk += 16;
+    }
+
+  bytecpy(rk, skey + 8, 8);     /* final whitening key (WK2, WK3) */
+
+  return 18;
+}
+
+void clefiaencrypt(unsigned char *ct, const unsigned char *pt,
+                   const unsigned char *rk, const int r)
+{
+  unsigned char rin[16];
+  unsigned char  rout[16];
+
+  bytecpy(rin, pt, 16);
+
+  bytexor(rin + 4, rin + 4, rk + 0, 4); /* initial key whitening */
+  bytexor(rin + 12, rin + 12, rk + 4, 4);
+  rk += 8;
+
+  clefiagfn4(rout, rin, rk, r); /* GFN_{4,r} */
+
+  bytecpy(ct, rout, 16);
+  bytexor(ct + 4, ct + 4, rk + r * 8 + 0, 4);   /* final key whitening */
+  bytexor(ct + 12, ct + 12, rk + r * 8 + 4, 4);
+}
diff --git a/tinyusb/hw/mcu/sony/cxd56/mkspk/clefia.h b/tinyusb/hw/mcu/sony/cxd56/mkspk/clefia.h
new file mode 100755
index 00000000..a0e02587
--- /dev/null
+++ b/tinyusb/hw/mcu/sony/cxd56/mkspk/clefia.h
@@ -0,0 +1,65 @@
+/****************************************************************************
+ * tools/cxd56/clefia.h
+ *
+ * Copyright (C) 2007, 2008 Sony Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+#ifndef _TOOLS_CXD56_CLEFIA_H_
+#define _TOOLS_CXD56_CLEFIA_H_
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+struct cipher
+  {
+    int mode;
+    int dir;
+    uint8_t rk[8 * 26 + 16];
+    uint8_t vector[16];
+    int round;
+    uint8_t k1[16];
+    uint8_t k2[16];
+  };
+
+/****************************************************************************
+ * Public Function Prototypes
+ ****************************************************************************/
+
+struct cipher *cipher_init(uint8_t * key, uint8_t * iv);
+void cipher_deinit(struct cipher *c);
+int cipher_calc_cmac(struct cipher *c, void *data, int size, void *cmac);
+void bytexor(unsigned char *dst, const unsigned char *a,
+             const unsigned char *b, int bytelen);
+int clefiakeyset(unsigned char *rk, const unsigned char *skey);
+void clefiaencrypt(unsigned char *ct, const unsigned char *pt,
+                   const unsigned char *rk, const int r);
+
+#endif
diff --git a/tinyusb/hw/mcu/sony/cxd56/mkspk/elf32.h b/tinyusb/hw/mcu/sony/cxd56/mkspk/elf32.h
new file mode 100755
index 00000000..94a9c81b
--- /dev/null
+++ b/tinyusb/hw/mcu/sony/cxd56/mkspk/elf32.h
@@ -0,0 +1,175 @@
+/****************************************************************************
+ * include/elf32.h
+ *
+ *   Copyright (C) 2012 Gregory Nutt. All rights reserved.
+ *   Author: Gregory Nutt <gnutt@nuttx.org>
+ *
+ * Reference: System V Application Binary Interface, Edition 4.1, March 18,
+ * 1997, The Santa Cruz Operation, Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *
+ ****************************************************************************/
+
+#ifndef __INCLUDE_ELF32_H
+#define __INCLUDE_ELF32_H
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <stdint.h>
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define EI_NIDENT          16     /* Size of e_ident[] */
+
+#define ELF32_ST_BIND(i)   ((i) >> 4)
+#define ELF32_ST_TYPE(i)   ((i) & 0xf)
+#define ELF32_ST_INFO(b,t) (((b) << 4) | ((t) & 0xf))
+
+/* Definitions for Elf32_Rel*::r_info */
+
+#define ELF32_R_SYM(i)    ((i) >> 8)
+#define ELF32_R_TYPE(i)   ((i) & 0xff)
+#define ELF32_R_INFO(s,t) (((s)<< 8) | ((t) & 0xff))
+
+#define ELF_R_SYM(i)      ELF32_R_SYM(i)
+
+/****************************************************************************
+ * Public Type Definitions
+ ****************************************************************************/
+
+/* Figure 4.2: 32-Bit Data Types */
+
+typedef uint32_t  Elf32_Addr;  /* Unsigned program address */
+typedef uint16_t  Elf32_Half;  /* Unsigned medium integer */
+typedef uint32_t  Elf32_Off;   /* Unsigned file offset */
+typedef int32_t   Elf32_Sword; /* Signed large integer */
+typedef uint32_t  Elf32_Word;  /* Unsigned large integer */
+
+/* Figure 4-3: ELF Header */
+
+typedef struct
+{
+  unsigned char e_ident[EI_NIDENT];
+  Elf32_Half    e_type;
+  Elf32_Half    e_machine;
+  Elf32_Word    e_version;
+  Elf32_Addr    e_entry;
+  Elf32_Off     e_phoff;
+  Elf32_Off     e_shoff;
+  Elf32_Word    e_flags;
+  Elf32_Half    e_ehsize;
+  Elf32_Half    e_phentsize;
+  Elf32_Half    e_phnum;
+  Elf32_Half    e_shentsize;
+  Elf32_Half    e_shnum;
+  Elf32_Half    e_shstrndx;
+} Elf32_Ehdr;
+
+/* Figure 4-8: Section Header */
+
+typedef struct
+{
+  Elf32_Word    sh_name;
+  Elf32_Word    sh_type;
+  Elf32_Word    sh_flags;
+  Elf32_Addr    sh_addr;
+  Elf32_Off     sh_offset;
+  Elf32_Word    sh_size;
+  Elf32_Word    sh_link;
+  Elf32_Word    sh_info;
+  Elf32_Word    sh_addralign;
+  Elf32_Word    sh_entsize;
+} Elf32_Shdr;
+
+/* Figure 4-15: Symbol Table Entry */
+
+typedef struct
+{
+  Elf32_Word    st_name;
+  Elf32_Addr    st_value;
+  Elf32_Word    st_size;
+  unsigned char st_info;
+  unsigned char st_other;
+  Elf32_Half    st_shndx;
+} Elf32_Sym;
+
+/* Figure 4-19: Relocation Entries */
+
+typedef struct
+{
+  Elf32_Addr   r_offset;
+  Elf32_Word   r_info;
+} Elf32_Rel;
+
+typedef struct
+{
+  Elf32_Addr   r_offset;
+  Elf32_Word   r_info;
+  Elf32_Sword  r_addend;
+} Elf32_Rela;
+
+/* Figure 5-1: Program Header */
+
+typedef struct
+{
+  Elf32_Word   p_type;
+  Elf32_Off    p_offset;
+  Elf32_Addr   p_vaddr;
+  Elf32_Addr   p_paddr;
+  Elf32_Word   p_filesz;
+  Elf32_Word   p_memsz;
+  Elf32_Word   p_flags;
+  Elf32_Word   p_align;
+} Elf32_Phdr;
+
+/* Figure 5-9: Dynamic Structure */
+
+typedef struct
+{
+  Elf32_Sword  d_tag;
+  union
+  {
+    Elf32_Word d_val;
+    Elf32_Addr d_ptr;
+  } d_un;
+} Elf32_Dyn;
+
+typedef Elf32_Addr  Elf_Addr;
+typedef Elf32_Ehdr  Elf_Ehdr;
+typedef Elf32_Rel   Elf_Rel;
+typedef Elf32_Rela  Elf_Rela;
+typedef Elf32_Sym   Elf_Sym;
+typedef Elf32_Shdr  Elf_Shdr;
+typedef Elf32_Word  Elf_Word;
+
+#endif /* __INCLUDE_ELF32_H */
diff --git a/tinyusb/hw/mcu/sony/cxd56/mkspk/mkspk.c b/tinyusb/hw/mcu/sony/cxd56/mkspk/mkspk.c
new file mode 100755
index 00000000..c447ad7d
--- /dev/null
+++ b/tinyusb/hw/mcu/sony/cxd56/mkspk/mkspk.c
@@ -0,0 +1,383 @@
+/****************************************************************************
+ * tools/cxd56/mkspk.c
+ *
+ * Copyright (C) 2007, 2008 Sony Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <assert.h>
+
+#include "mkspk.h"
+
+/****************************************************************************
+ * Private Types
+ ****************************************************************************/
+
+struct args
+{
+  int core;
+  char *elffile;
+  char *savename;
+  char *outputfile;
+};
+
+/****************************************************************************
+ * Private Data
+ ****************************************************************************/
+
+static uint8_t vmk[16] =
+  "\x27\xc0\xaf\x1b\x5d\xcb\xc6\xc5\x58\x22\x1c\xdd\xaf\xf3\x20\x21";
+
+static struct args g_options =
+{
+  0
+};
+
+/****************************************************************************
+ * Private Functions
+ ****************************************************************************/
+
+static struct args *parse_args(int argc, char **argv)
+{
+  int opt;
+  int show_help;
+  struct args *args = &g_options;
+  char *endp;
+
+  show_help = 0;
+
+  if (argc < 2)
+    {
+      show_help = 1;
+    }
+
+  memset(args, 0, sizeof(*args));
+  args->core = -1;
+
+  while ((opt = getopt(argc, argv, "h:c:")) != -1)
+    {
+      switch (opt)
+        {
+        case 'c':
+          args->core = strtol(optarg, &endp, 0);
+          if (*endp)
+            {
+              fprintf(stderr, "Invalid core number \"%s\"\n", optarg);
+              show_help = 1;
+            }
+          break;
+
+        case 'h':
+        default:
+          show_help = 1;
+        }
+    }
+
+  argc -= optind;
+  argv += optind;
+
+  args->elffile = argv[0];
+  args->savename = argv[1];
+  argc -= 2;
+  argv += 2;
+
+  if (argc > 0)
+    {
+      args->outputfile = strdup(argv[0]);
+    }
+  else
+    {
+      show_help = 1;
+    }
+
+  /* Sanity checks for options */
+
+  if (show_help == 1)
+    {
+      fprintf(stderr,
+              "mkspk [-c <number>] <filename> <save name> [<output file>]\n");
+      exit(EXIT_FAILURE);
+    }
+
+  if (args->core < 0)
+    {
+      fprintf(stderr, "Core number is not set. Please use -c option.\n");
+      exit(EXIT_FAILURE);
+    }
+
+  if (strlen(args->savename) > 63)
+    {
+      fprintf(stderr, "savename too long.\n");
+      exit(EXIT_FAILURE);
+    }
+
+  return args;
+}
+
+static struct elf_file *load_elf(const char *filename)
+{
+  size_t fsize;
+  int pos;
+  char *buf;
+  FILE *fp;
+  struct elf_file *ef;
+  Elf32_Shdr *sh;
+  uint16_t i;
+  int ret;
+
+  fp = fopen(filename, "rb");
+  if (!fp)
+    {
+      return NULL;
+    }
+
+  ef = (struct elf_file *)malloc(sizeof(*ef));
+  if (!ef)
+    {
+      return NULL;
+    }
+
+  pos = fseek(fp, 0, SEEK_END);
+  fsize = (size_t) ftell(fp);
+  fseek(fp, pos, SEEK_SET);
+
+  buf = (char *)malloc(fsize);
+  if (!buf)
+    {
+      return NULL;
+    }
+
+  ret = fread(buf, fsize, 1, fp);
+  fclose(fp);
+  if (ret != 1)
+    {
+      return NULL;
+    }
+
+  ef->data = buf;
+
+  ef->ehdr = (Elf32_Ehdr *) buf;
+
+  Elf32_Ehdr *h = (Elf32_Ehdr *) buf;
+
+  if (!(h->e_ident[EI_MAG0] == 0x7f &&
+        h->e_ident[EI_MAG1] == 'E' &&
+        h->e_ident[EI_MAG2] == 'L' && h->e_ident[EI_MAG3] == 'F'))
+    {
+      free(ef);
+      free(buf);
+      return NULL;
+    }
+
+  ef->phdr = (Elf32_Phdr *) (buf + ef->ehdr->e_phoff);
+  ef->shdr = (Elf32_Shdr *) (buf + ef->ehdr->e_shoff);
+  ef->shstring = buf + ef->shdr[ef->ehdr->e_shstrndx].sh_offset;
+
+  for (i = 0, sh = ef->shdr; i < ef->ehdr->e_shnum; i++, sh++)
+    {
+      if (sh->sh_type == SHT_SYMTAB)
+        {
+          ef->symtab = (Elf32_Sym *) (buf + sh->sh_offset);
+          ef->nsyms = sh->sh_size / sh->sh_entsize;
+          continue;
+        }
+
+      if (sh->sh_type == SHT_STRTAB)
+        {
+          if (!strcmp(".strtab", ef->shstring + sh->sh_name))
+            {
+              ef->string = buf + sh->sh_offset;
+            }
+        }
+    }
+
+  return ef;
+}
+
+static void *create_image(struct elf_file *elf, int core, char *savename,
+                         int *image_size)
+{
+  char *img;
+  struct spk_header *header;
+  struct spk_prog_info *pi;
+  Elf32_Phdr *ph;
+  Elf32_Sym *sym;
+  char *name;
+  int snlen;
+  int nphs, psize, imgsize;
+  int i;
+  int j;
+  uint32_t offset;
+  uint32_t sp;
+
+  snlen = alignup(strlen(savename) + 1, 16);
+
+  nphs = 0;
+  psize = 0;
+  for (i = 0, ph = elf->phdr; i < elf->ehdr->e_phnum; i++, ph++)
+    {
+      if (ph->p_type != PT_LOAD || ph->p_filesz == 0)
+        {
+          continue;
+        }
+
+      nphs++;
+      psize += alignup(ph->p_filesz, 16);
+    }
+
+  imgsize = sizeof(*header) + snlen + (nphs * 16) + psize;
+
+  img = (char *)malloc(imgsize + 32);
+  if (!img)
+    {
+      return NULL;
+    }
+
+  *image_size = imgsize;
+  sym = elf->symtab;
+  name = elf->string;
+  sp = 0;
+
+  for (j = 0; j < elf->nsyms; j++, sym++)
+    {
+      if (!strcmp("__stack", name + sym->st_name))
+        {
+          sp = sym->st_value;
+        }
+    }
+
+  memset(img, 0, imgsize);
+
+  header = (struct spk_header *)img;
+  header->magic[0] = 0xef;
+  header->magic[1] = 'M';
+  header->magic[2] = 'O';
+  header->magic[3] = 'D';
+  header->cpu = core;
+
+  header->entry = elf->ehdr->e_entry;
+  header->stack = sp;
+  header->core = core;
+
+  header->binaries = nphs;
+  header->phoffs = sizeof(*header) + snlen;
+  header->mode = 0777;
+
+  strncpy(img + sizeof(*header), savename, 63);
+
+  ph = elf->phdr;
+  pi = (struct spk_prog_info *)(img + header->phoffs);
+  offset = ((char *)pi - img) + (nphs * sizeof(*pi));
+  for (i = 0; i < elf->ehdr->e_phnum; i++, ph++)
+    {
+      if (ph->p_type != PT_LOAD || ph->p_filesz == 0)
+        continue;
+      pi->load_address = ph->p_paddr;
+      pi->offset = offset;
+      pi->size = alignup(ph->p_filesz, 16);     /* need 16 bytes align for
+                                                 * decryption */
+      pi->memsize = ph->p_memsz;
+
+      memcpy(img + pi->offset, elf->data + ph->p_offset, ph->p_filesz);
+
+      offset += alignup(ph->p_filesz, 16);
+      pi++;
+    }
+
+  return img;
+}
+
+/****************************************************************************
+ * Public Functions
+ ****************************************************************************/
+
+int main(int argc, char **argv)
+{
+  struct args *args;
+  struct elf_file *elf;
+  struct cipher *c;
+  uint8_t *spkimage;
+  int size = 0;
+  FILE *fp;
+  char footer[16];
+
+  args = parse_args(argc, argv);
+
+  elf = load_elf(args->elffile);
+  if (!elf)
+    {
+      fprintf(stderr, "Loading ELF %s failure.\n", args->elffile);
+      exit(EXIT_FAILURE);
+    }
+
+  spkimage = create_image(elf, args->core, args->savename, &size);
+  free(elf);
+
+  c = cipher_init(vmk, NULL);
+  cipher_calc_cmac(c, spkimage, size, (uint8_t *) spkimage + size);
+  cipher_deinit(c);
+
+  size += 16;                   /* Extend CMAC size */
+
+  snprintf(footer, 16, "MKSPK_BN_HOOTER");
+  footer[15] = '\0';
+
+  fp = fopen(args->outputfile, "wb");
+  if (!fp)
+    {
+      fprintf(stderr, "Output file open error.\n");
+      free(spkimage);
+      exit(EXIT_FAILURE);
+    }
+
+  fwrite(spkimage, size, 1, fp);
+  fwrite(footer, 16, 1, fp);
+
+  fclose(fp);
+
+  printf("File %s is successfully created.\n", args->outputfile);
+  free(args->outputfile);
+
+  memset(spkimage, 0, size);
+  free(spkimage);
+
+  exit(EXIT_SUCCESS);
+}
diff --git a/tinyusb/hw/mcu/sony/cxd56/mkspk/mkspk.h b/tinyusb/hw/mcu/sony/cxd56/mkspk/mkspk.h
new file mode 100755
index 00000000..5c1b979c
--- /dev/null
+++ b/tinyusb/hw/mcu/sony/cxd56/mkspk/mkspk.h
@@ -0,0 +1,93 @@
+/****************************************************************************
+ * tools/cxd56/mkspk.h
+ *
+ * Copyright (C) 2007, 2008 Sony Corporation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in
+ *    the documentation and/or other materials provided with the
+ *    distribution.
+ * 3. Neither the name NuttX nor the names of its contributors may be
+ *    used to endorse or promote products derived from this software
+ *    without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+ * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+ * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+ * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+ * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+ * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+ * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+ * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+ * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ *****************************************************************************/
+
+/****************************************************************************
+ * Included Files
+ ****************************************************************************/
+
+#include "clefia.h"
+#include "elf32.h"
+
+/****************************************************************************
+ * Pre-processor Definitions
+ ****************************************************************************/
+
+#define EI_MAG0            0      /* File identification */
+#define EI_MAG1            1
+#define EI_MAG2            2
+#define EI_MAG3            3
+
+#define SHT_SYMTAB         2
+#define SHT_STRTAB         3
+
+#define PT_LOAD            1
+
+#define alignup(x, a) (((x) + ((a) - 1)) & ~((a) - 1))
+#define swap(a, b) { (a) ^= (b); (b) ^= (a); (a) ^= (b); }
+
+/****************************************************************************
+ * Public Types
+ ****************************************************************************/
+
+struct spk_header
+  {
+    uint8_t magic[4];
+    uint8_t cpu;
+    uint8_t reserved[11];
+    uint32_t entry;
+    uint32_t stack;
+    uint16_t core;
+    uint16_t binaries;
+    uint16_t phoffs;
+    uint16_t mode;
+  };
+
+struct spk_prog_info
+  {
+    uint32_t load_address;
+    uint32_t offset;
+    uint32_t size;
+    uint32_t memsize;
+  };
+
+struct elf_file
+  {
+    Elf32_Ehdr *ehdr;
+    Elf32_Phdr *phdr;
+    Elf32_Shdr *shdr;
+    Elf32_Sym *symtab;
+    int nsyms;
+    char *shstring;
+    char *string;
+    char *data;
+  };
diff --git a/tinyusb/hw/mcu/sony/cxd56/tools/__pycache__/xmodem.cpython-36.pyc b/tinyusb/hw/mcu/sony/cxd56/tools/__pycache__/xmodem.cpython-36.pyc
new file mode 100755
index 00000000..cfa917f7
--- /dev/null
+++ b/tinyusb/hw/mcu/sony/cxd56/tools/__pycache__/xmodem.cpython-36.pyc
diff --git a/tinyusb/hw/mcu/sony/cxd56/tools/flash_writer.py b/tinyusb/hw/mcu/sony/cxd56/tools/flash_writer.py
new file mode 100755
index 00000000..840f10c3
--- /dev/null
+++ b/tinyusb/hw/mcu/sony/cxd56/tools/flash_writer.py
@@ -0,0 +1,580 @@
+#! /usr/bin/env python3
+
+# Copyright (C) 2018 Sony Semiconductor Solutions Corp.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the above copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the above copyright
+#    notice, this list of conditions and the following disclaimer in
+#    the documentation and/or other materials provided with the
+#    distribution.
+# 3. Neither the name NuttX nor the names of its contributors may be
+#    used to endorse or promote products derived from this software
+#    without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
+# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
+# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
+# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
+# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
+# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
+# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+# POSSIBILITY OF SUCH DAMAGE.
+#
+
+import time
+import sys
+import os
+import struct
+import glob
+import fnmatch
+import errno
+import telnetlib
+import argparse
+import shutil
+import subprocess
+import re
+import xmodem
+
+import_serial_module = True
+
+# When SDK release, plase set SDK_RELEASE as True.
+SDK_RELEASE = False
+
+if SDK_RELEASE :
+	PRINT_RAW_COMMAND = False
+	REBOOT_AT_END = True
+else :
+	PRINT_RAW_COMMAND = True
+	REBOOT_AT_END = True
+
+try:
+	import serial
+except:
+	import_serial_module = False
+
+# supported environment various
+# CXD56_PORT
+# CXD56_TELNETSRV_PORT
+# CXD56_TELNETSRV_IP
+
+PROTOCOL_SERIAL = 0
+PROTOCOL_TELNET = 1
+
+MAX_DOT_COUNT = 70
+
+# configure parameters and default value
+class ConfigArgs:
+	PROTOCOL_TYPE = None
+	SERIAL_PORT = "COM1"
+	SERVER_PORT = 4569
+	SERVER_IP = "localhost"
+	EOL = bytes([10])
+	WAIT_RESET = True
+	AUTO_RESET = False
+	DTR_RESET = False
+	XMODEM_BAUD = 0
+	NO_SET_BOOTABLE = False
+	PACKAGE_NAME = []
+	FILE_NAME = []
+	ERASE_NAME = []
+	PKGSYS_NAME = []
+	PKGAPP_NAME = []
+	PKGUPD_NAME = []
+
+ROM_MSG = [b"Welcome to nash"]
+XMDM_MSG = "Waiting for XMODEM (CRC or 1K) transfer. Ctrl-X to cancel."
+
+class ConfigArgsLoader():
+	def __init__(self):
+		self.parser = argparse.ArgumentParser(formatter_class=argparse.RawTextHelpFormatter)
+		self.parser.add_argument("package_name", help="the name of the package to install", nargs='*')
+		self.parser.add_argument("-f", "--file", dest="file_name", help="save file", action='append')
+		self.parser.add_argument("-e", "--erase", dest="erase_name", help="erase file", action='append')
+
+		self.parser.add_argument("-S", "--sys", dest="pkgsys_name", help="the name of the system package to install", action='append')
+		self.parser.add_argument("-A", "--app", dest="pkgapp_name", help="the name of the application package to install", action='append')
+		self.parser.add_argument("-U", "--upd", dest="pkgupd_name", help="the name of the updater package to install", action='append')
+
+		self.parser.add_argument("-a", "--auto-reset", dest="auto_reset",
+									action="store_true", default=None,
+									help="try to auto reset develop board if possible")
+		self.parser.add_argument("-d", "--dtr-reset", dest="dtr_reset",
+									action="store_true", default=None,
+									help="try to auto reset develop board if possible")
+		self.parser.add_argument("-n", "--no-set-bootable", dest="no_set_bootable",
+									action="store_true", default=None,
+									help="not to set bootable")
+
+		group = self.parser.add_argument_group()
+		group.add_argument("-i", "--server-ip", dest="server_ip",
+						   help="the ip address connected to the telnet server")
+		group.add_argument("-p", "--server-port", dest="server_port", type=int,
+						   help="the port connected to the telnet server")
+
+		group = self.parser.add_argument_group()
+		group.add_argument("-c", "--serial-port", dest="serial_port", help="the serial port")
+		group.add_argument("-b", "--xmodem-baudrate", dest="xmodem_baud", help="Use the faster baudrate in xmodem")
+
+		mutually_group = self.parser.add_mutually_exclusive_group()
+		mutually_group.add_argument("-t", "--telnet-protocol", dest="telnet_protocol",
+									action="store_true", default=None,
+									help="use the telnet protocol for binary transmission")
+		mutually_group.add_argument("-s", "--serial-protocol", dest="serial_protocol",
+									action="store_true", default=None,
+									help="use the serial port for binary transmission, default options")
+
+		mutually_group2 = self.parser.add_mutually_exclusive_group()
+		mutually_group2.add_argument("-F", "--force-wait-reset", dest="wait_reset",
+									action="store_true", default=None,
+									help="force wait for pressing RESET button")
+		mutually_group2.add_argument("-N", "--no-wait-reset", dest="wait_reset",
+									action="store_false", default=None,
+									help="if possible, skip to wait for pressing RESET button")
+
+	def update_config(self):
+		args = self.parser.parse_args()
+
+		ConfigArgs.PACKAGE_NAME = args.package_name
+		ConfigArgs.FILE_NAME = args.file_name
+		ConfigArgs.ERASE_NAME = args.erase_name
+		ConfigArgs.PKGSYS_NAME = args.pkgsys_name
+		ConfigArgs.PKGAPP_NAME = args.pkgapp_name
+		ConfigArgs.PKGUPD_NAME = args.pkgupd_name
+
+		# Get serial port or telnet server ip etc
+		if args.serial_protocol == True:
+			ConfigArgs.PROTOCOL_TYPE = PROTOCOL_SERIAL
+		elif args.telnet_protocol == True:
+			ConfigArgs.PROTOCOL_TYPE = PROTOCOL_TELNET
+
+		if ConfigArgs.PROTOCOL_TYPE == None:
+			proto = os.environ.get("CXD56_PROTOCOL")
+			if proto is not None:
+				if 's' in proto:
+					ConfigArgs.PROTOCOL_TYPE = PROTOCOL_SERIAL
+				elif 't' in proto:
+					ConfigArgs.PROTOCOL_TYPE = PROTOCOL_TELNET
+
+		if ConfigArgs.PROTOCOL_TYPE == None:
+			ConfigArgs.PROTOCOL_TYPE = PROTOCOL_SERIAL
+
+		if ConfigArgs.PROTOCOL_TYPE == PROTOCOL_SERIAL:
+			if args.serial_port is not None:
+				ConfigArgs.SERIAL_PORT = args.serial_port
+			else:
+				# Get serial port from the environment
+				port = os.environ.get("CXD56_PORT")
+				if port is not None:
+					ConfigArgs.SERIAL_PORT = port
+				else:
+					print("CXD56_PORT is not set, Use " + ConfigArgs.SERIAL_PORT + ".")
+		else:
+			ConfigArgs.PROTOCOL_TYPE = PROTOCOL_TELNET
+			if args.server_port is not None:
+				ConfigArgs.SERVER_PORT = args.server_port
+			else:
+				port = os.environ.get("CXD56_TELNETSRV_PORT")
+				if port is not None:
+					ConfigArgs.SERVER_PORT = port
+				else:
+					print("CXD56_TELNETSRV_PORT is not set, Use " + str(ConfigArgs.SERVER_PORT) + ".")
+			if args.server_ip is not None:
+				ConfigArgs.SERVER_IP = args.server_ip
+			else:
+				ip = os.environ.get("CXD56_TELNETSRV_IP")
+				if ip is not None:
+					ConfigArgs.SERVER_IP = ip
+				else:
+					print("CXD56_TELNETSRV_IP is not set, Use " + ConfigArgs.SERVER_IP + ".")
+
+		if args.xmodem_baud is not None:
+			ConfigArgs.XMODEM_BAUD = args.xmodem_baud
+
+		if args.auto_reset is not None:
+			ConfigArgs.AUTO_RESET = args.auto_reset
+
+		if args.dtr_reset is not None:
+			ConfigArgs.DTR_RESET = args.dtr_reset
+
+		if args.no_set_bootable is not None:
+			ConfigArgs.NO_SET_BOOTABLE = args.no_set_bootable
+
+		if args.wait_reset is not None:
+			ConfigArgs.WAIT_RESET = args.wait_reset
+
+class TelnetDev:
+	def __init__(self):
+		srv_ipaddr = ConfigArgs.SERVER_IP
+		srv_port = ConfigArgs.SERVER_PORT
+		self.recvbuf = b'';
+		try:
+			self.telnet = telnetlib.Telnet(host=srv_ipaddr, port=srv_port, timeout=10)
+			# There is a ack to be sent after connecting to the telnet server.
+			self.telnet.write(b"\xff")
+		except Exception as e:
+			print("Cannot connect to the server %s:%d" % (srv_ipaddr, srv_port))
+			sys.exit(e.args[0])
+
+	def readline(self, size=None):
+		res = b''
+		ch = b''
+		while ch != ConfigArgs.EOL:
+			ch = self.getc_raw(1, timeout=0.1)
+			if ch == b'':
+				return res
+			res += ch
+		return res
+
+	def getc_raw(self, size, timeout=1):
+		res = b''
+		tm = time.monotonic()
+		while size > 0:
+			while self.recvbuf == b'':
+				self.recvbuf = self.telnet.read_eager()
+				if self.recvbuf == b'':
+					if (time.monotonic() - tm) > timeout:
+						return res
+					time.sleep(0.1)
+			res += self.recvbuf[0:1]
+			self.recvbuf = self.recvbuf[1:]
+			size -= 1
+		return res
+
+	def write(self, buffer):
+		self.telnet.write(buffer)
+
+	def discard_inputs(self, timeout=1.0):
+		while True:
+			ch = self.getc_raw(1, timeout=timeout)
+			if ch == b'':
+				break
+
+	def getc(self, size, timeout=1):
+		c = self.getc_raw(size, timeout)
+		return c
+
+	def putc(self, buffer, timeout=1):
+		self.telnet.write(buffer)
+		self.show_progress(len(buffer))
+
+	def reboot(self):
+		# no-op
+		pass
+
+	def set_file_size(self, filesize):
+		self.bytes_transfered = 0
+		self.filesize = filesize
+		self.count = 0
+
+	def show_progress(self, sendsize):
+		if PRINT_RAW_COMMAND:
+			if self.count < MAX_DOT_COUNT:
+				self.bytes_transfered = self.bytes_transfered + sendsize
+				cur_count = int(self.bytes_transfered * MAX_DOT_COUNT / self.filesize)
+				if MAX_DOT_COUNT < cur_count:
+					cur_count = MAX_DOT_COUNT
+				for idx in range(cur_count - self.count):
+					print('#',end='')
+					sys.stdout.flush()
+				self.count = cur_count
+				if self.count == MAX_DOT_COUNT:
+					print("\n")
+
+class SerialDev:
+	def __init__(self):
+		if import_serial_module is False:
+			print("Cannot import serial module, maybe it's not install yet.")
+			print("\n", end="")
+			print("Please install python-setuptool by Cygwin installer.")
+			print("After that use easy_intall command to install serial module")
+			print("    $ cd tool/")
+			print("    $ python3 -m easy_install pyserial-2.7.tar.gz")
+			quit()
+		else:
+			port = ConfigArgs.SERIAL_PORT
+			try:
+				self.serial = serial.Serial(port, baudrate=115200,
+					parity=serial.PARITY_NONE, stopbits=serial.STOPBITS_ONE,
+					bytesize=serial.EIGHTBITS, timeout=0.1)
+			except Exception as e:
+				print("Cannot open port : " + port)
+				sys.exit(e.args[0])
+
+	def readline(self, size=None):
+		return self.serial.readline(size)
+
+	def write(self, buffer):
+		self.serial.write(buffer)
+		self.serial.flush()
+
+	def discard_inputs(self, timeout=1.0):
+		time.sleep(timeout)
+		self.serial.flushInput()
+
+	def getc(self, size, timeout=1):
+		self.serial.timeout = timeout
+		c = self.serial.read(size)
+		self.serial.timeout = 0.1
+		return c
+
+	def putc(self, buffer, timeout=1):
+		self.serial.timeout = timeout
+		self.serial.write(buffer)
+		self.serial.flush()
+		self.serial.timeout = 0.1
+		self.show_progress(len(buffer))
+
+	# Note: windows platform dependent code
+	def putc_win(self, buffer, timeout=1):
+		self.serial.write(buffer)
+		self.show_progress(len(buffer))
+		while True:
+			if self.serial.out_waiting == 0:
+				break
+
+	def setBaudrate(self, baudrate):
+#		self.serial.setBaudrate(baudrate)
+		self.serial.baudrate = baudrate
+
+	def reboot(self):
+		# Target Reset by DTR
+		self.serial.setDTR(False)
+		self.serial.setDTR(True)
+		self.serial.setDTR(False)
+
+	def set_file_size(self, filesize):
+		self.bytes_transfered = 0
+		self.filesize = filesize
+		self.count = 0
+
+	def show_progress(self, sendsize):
+		if PRINT_RAW_COMMAND:
+			if self.count < MAX_DOT_COUNT:
+				self.bytes_transfered = self.bytes_transfered + sendsize
+				cur_count = int(self.bytes_transfered * MAX_DOT_COUNT / self.filesize)
+				if MAX_DOT_COUNT < cur_count:
+					cur_count = MAX_DOT_COUNT
+				for idx in range(cur_count - self.count):
+					print('#',end='')
+					sys.stdout.flush()
+				self.count = cur_count
+				if self.count == MAX_DOT_COUNT:
+					print("\n")
+
+class FlashWriter:
+	def __init__(self, protocol_sel=PROTOCOL_SERIAL):
+		if protocol_sel == PROTOCOL_TELNET:
+			self.serial = TelnetDev()
+		else:
+			self.serial = SerialDev()
+
+	def cancel_autoboot(self) :
+		boot_msg = ''
+		self.serial.reboot()  # Target reboot before send 'r'
+		while boot_msg == '' :
+			rx = self.serial.readline().strip()
+			self.serial.write(b"r")  # Send "r" key to avoid auto boot
+			for msg in ROM_MSG :
+				if msg in rx :
+					boot_msg = msg
+					break
+		while True :
+			rx = self.serial.readline().decode(errors="replace").strip()
+			if "updater" in rx :
+				# Workaround : Sometime first character is dropped.
+				# Send line feed as air shot before actual command.
+				self.serial.write(b"\n")    # Send line feed
+				self.serial.discard_inputs()# Clear input buffer to sync
+				return boot_msg.decode(errors="ignore")
+
+	def recv(self):
+		rx = self.serial.readline()
+		if PRINT_RAW_COMMAND :
+			serial_line = rx.decode(errors="replace")
+			if serial_line.strip() != "" and not serial_line.startswith(XMDM_MSG):
+				print(serial_line, end="")
+		return rx
+
+	def wait(self, string):
+		while True:
+			rx = self.recv()
+			if string.encode() in rx:
+				time.sleep(0.1)
+				break
+
+	def wait_for_prompt(self):
+		prompt_pat = re.compile(b"updater")
+		while True:
+			rx = self.recv()
+			if prompt_pat.search(rx):
+				time.sleep(0.1)
+				break
+
+	def send(self, string):
+		self.serial.write(str(string).encode() + b"\n")
+		rx = self.serial.readline()
+		if PRINT_RAW_COMMAND :
+			print(rx.decode(errors="replace"), end="")
+
+	def read_output(self, prompt_text) :
+		output = []
+		while True :
+			rx = self.serial.readline()
+			if prompt_text.encode() in rx :
+				time.sleep(0.1)
+				break
+			if rx != "" :
+				output.append(rx.decode(errors="ignore").rstrip())
+		return output
+
+	def install_files(self, files, command) :
+		if ConfigArgs.XMODEM_BAUD:
+			command += " -b " + ConfigArgs.XMODEM_BAUD
+		if os.name == 'nt':
+			modem = xmodem.XMODEM(self.serial.getc, self.serial.putc_win, 'xmodem1k')
+		else:
+			modem = xmodem.XMODEM(self.serial.getc, self.serial.putc, 'xmodem1k')
+		for file in files:
+			with open(file, "rb") as bin :
+				self.send(command)
+				print("Install " + file)
+				self.wait(XMDM_MSG)
+				print("|0%" +
+						"-" * (int(MAX_DOT_COUNT / 2) - 6) +
+						"50%" +
+						"-" * (MAX_DOT_COUNT - int(MAX_DOT_COUNT / 2) - 5) +
+						"100%|")
+				if ConfigArgs.XMODEM_BAUD:
+					self.serial.setBaudrate(ConfigArgs.XMODEM_BAUD)
+					self.serial.discard_inputs() # Clear input buffer to sync
+				self.serial.set_file_size(os.path.getsize(file))
+				modem.send(bin)
+				if ConfigArgs.XMODEM_BAUD:
+					self.serial.setBaudrate(115200)
+			self.wait_for_prompt()
+
+	def save_files(self, files) :
+		if ConfigArgs.XMODEM_BAUD:
+			command = "save_file -b " + ConfigArgs.XMODEM_BAUD + " -x "
+		else:
+			command = "save_file -x "
+		if os.name == 'nt':
+			modem = xmodem.XMODEM(self.serial.getc, self.serial.putc_win, 'xmodem1k')
+		else:
+			modem = xmodem.XMODEM(self.serial.getc, self.serial.putc, 'xmodem1k')
+		for file in files:
+			with open(file, "rb") as bin :
+				self.send(command + os.path.basename(file))
+				print("Save " + file)
+				self.wait(XMDM_MSG)
+				if ConfigArgs.XMODEM_BAUD:
+					self.serial.setBaudrate(ConfigArgs.XMODEM_BAUD)
+					self.serial.discard_inputs() # Clear input buffer to sync
+				self.serial.set_file_size(os.path.getsize(file))
+				modem.send(bin)
+				if ConfigArgs.XMODEM_BAUD:
+					self.serial.setBaudrate(115200)
+				self.wait_for_prompt()
+				self.send("chmod d+rw " + os.path.basename(file))
+				self.wait_for_prompt()
+
+	def delete_files(self, files) :
+		for file in files :
+			self.delete_binary(file)
+
+	def delete_binary(self, bin_name) :
+		self.send("rm " + bin_name)
+		self.wait_for_prompt()
+
+def main():
+	try:
+		config_loader = ConfigArgsLoader()
+		config_loader.update_config()
+	except:
+		return errno.EINVAL
+
+	# Wait to reset the board
+	writer = FlashWriter(ConfigArgs.PROTOCOL_TYPE)
+
+	do_wait_reset = True
+	if ConfigArgs.AUTO_RESET:
+		if subprocess.call("cd " + sys.path[0] + "; ./reset_board.sh", shell=True) == 0:
+			print("auto reset board sucess!!")
+			do_wait_reset = False
+			bootrom_msg = writer.cancel_autoboot()
+
+	if ConfigArgs.DTR_RESET:
+		do_wait_reset = False
+		bootrom_msg = writer.cancel_autoboot()
+
+	if ConfigArgs.WAIT_RESET == False and do_wait_reset == True:
+		rx = writer.recv()
+		time.sleep(1)
+		for i in range(3):
+			writer.send("")
+			rx = writer.recv()
+			if "updater".encode() in rx:
+				# No need to wait for reset
+				do_wait_reset = False
+				break
+			time.sleep(1)
+
+	if do_wait_reset:
+		# Wait to reset the board
+		print('Please press RESET button on target board')
+		sys.stdout.flush()
+		bootrom_msg = writer.cancel_autoboot()
+
+	# Remove files
+	if ConfigArgs.ERASE_NAME :
+		print(">>> Remove exisiting files ...")
+		writer.delete_files(ConfigArgs.ERASE_NAME)
+
+	# Install files
+	if ConfigArgs.PACKAGE_NAME or ConfigArgs.PKGSYS_NAME or ConfigArgs.PKGAPP_NAME or ConfigArgs.PKGUPD_NAME:
+		print(">>> Install files ...")
+	if ConfigArgs.PACKAGE_NAME :
+		writer.install_files(ConfigArgs.PACKAGE_NAME, "install")
+	if ConfigArgs.PKGSYS_NAME :
+		writer.install_files(ConfigArgs.PKGSYS_NAME, "install")
+	if ConfigArgs.PKGAPP_NAME :
+		writer.install_files(ConfigArgs.PKGAPP_NAME, "install")
+	if ConfigArgs.PKGUPD_NAME :
+		writer.install_files(ConfigArgs.PKGUPD_NAME, "install -k updater.key")
+
+	# Save files
+	if ConfigArgs.FILE_NAME :
+		print(">>> Save files ...")
+		writer.save_files(ConfigArgs.FILE_NAME)
+
+	# Set auto boot
+	if not ConfigArgs.NO_SET_BOOTABLE:
+		print(">>> Save Configuration to FlashROM ...")
+		writer.send("set bootable M0P")
+		writer.wait_for_prompt()
+
+	# Sync all cached data to flash
+	writer.send("sync")
+	writer.wait_for_prompt()
+
+	if REBOOT_AT_END :
+		print("Restarting the board ...")
+		writer.send("reboot")
+
+	return 0
+
+if __name__ == "__main__":
+	try:
+		sys.exit(main())
+	except KeyboardInterrupt:
+		print("Canceled by keyboard interrupt.")
+		pass
diff --git a/tinyusb/hw/mcu/sony/cxd56/tools/xmodem.py b/tinyusb/hw/mcu/sony/cxd56/tools/xmodem.py
new file mode 100755
index 00000000..c9343005
--- /dev/null
+++ b/tinyusb/hw/mcu/sony/cxd56/tools/xmodem.py
@@ -0,0 +1,590 @@
+'''
+===============================
+ XMODEM file transfer protocol
+===============================
+
+.. $Id$
+
+This is a literal implementation of XMODEM.TXT_, XMODEM1K.TXT_ and
+XMODMCRC.TXT_, support for YMODEM and ZMODEM is pending. YMODEM should
+be fairly easy to implement as it is a hack on top of the XMODEM
+protocol using sequence bytes ``0x00`` for sending file names (and some
+meta data).
+
+.. _XMODEM.TXT: doc/XMODEM.TXT
+.. _XMODEM1K.TXT: doc/XMODEM1K.TXT
+.. _XMODMCRC.TXT: doc/XMODMCRC.TXT
+
+Data flow example including error recovery
+==========================================
+
+Here is a sample of the data flow, sending a 3-block message.
+It includes the two most common line hits - a garbaged block,
+and an ``ACK`` reply getting garbaged. ``CRC`` or ``CSUM`` represents
+the checksum bytes.
+
+XMODEM 128 byte blocks
+----------------------
+
+::
+
+    SENDER                                      RECEIVER
+
+                                            <-- NAK
+    SOH 01 FE Data[128] CSUM                -->
+                                            <-- ACK
+    SOH 02 FD Data[128] CSUM                -->
+                                            <-- ACK
+    SOH 03 FC Data[128] CSUM                -->
+                                            <-- ACK
+    SOH 04 FB Data[128] CSUM                -->
+                                            <-- ACK
+    SOH 05 FA Data[100] CPMEOF[28] CSUM     -->
+                                            <-- ACK
+    EOT                                     -->
+                                            <-- ACK
+
+XMODEM-1k blocks, CRC mode
+--------------------------
+
+::
+
+    SENDER                                      RECEIVER
+
+                                            <-- C
+    STX 01 FE Data[1024] CRC CRC            -->
+                                            <-- ACK
+    STX 02 FD Data[1024] CRC CRC            -->
+                                            <-- ACK
+    STX 03 FC Data[1000] CPMEOF[24] CRC CRC -->
+                                            <-- ACK
+    EOT                                     -->
+                                            <-- ACK
+
+Mixed 1024 and 128 byte Blocks
+------------------------------
+
+::
+
+    SENDER                                      RECEIVER
+
+                                            <-- C
+    STX 01 FE Data[1024] CRC CRC            -->
+                                            <-- ACK
+    STX 02 FD Data[1024] CRC CRC            -->
+                                            <-- ACK
+    SOH 03 FC Data[128] CRC CRC             -->
+                                            <-- ACK
+    SOH 04 FB Data[100] CPMEOF[28] CRC CRC  -->
+                                            <-- ACK
+    EOT                                     -->
+                                            <-- ACK
+
+YMODEM Batch Transmission Session (1 file)
+------------------------------------------
+
+::
+
+    SENDER                                      RECEIVER
+                                            <-- C (command:rb)
+    SOH 00 FF foo.c NUL[123] CRC CRC        -->
+                                            <-- ACK
+                                            <-- C
+    SOH 01 FE Data[128] CRC CRC             -->
+                                            <-- ACK
+    SOH 02 FC Data[128] CRC CRC             -->
+                                            <-- ACK
+    SOH 03 FB Data[100] CPMEOF[28] CRC CRC  -->
+                                            <-- ACK
+    EOT                                     -->
+                                            <-- NAK
+    EOT                                     -->
+                                            <-- ACK
+                                            <-- C
+    SOH 00 FF NUL[128] CRC CRC              -->
+                                            <-- ACK
+
+
+'''
+
+__author__ = 'Wijnand Modderman <maze@pyth0n.org>'
+__copyright__ = ['Copyright (c) 2010 Wijnand Modderman',
+                 'Copyright (c) 1981 Chuck Forsberg']
+__license__ = 'MIT'
+__version__ = '0.3.2'
+
+import logging
+import time
+import sys
+from functools import partial
+import collections
+
+# Loggerr
+log = logging.getLogger('xmodem')
+
+# Protocol bytes
+SOH = bytes([0x01])
+STX = bytes([0x02])
+EOT = bytes([0x04])
+ACK = bytes([0x06])
+DLE = bytes([0x10])
+NAK = bytes([0x15])
+CAN = bytes([0x18])
+CRC = bytes([0x43]) # C
+
+
+class XMODEM(object):
+    '''
+    XMODEM Protocol handler, expects an object to read from and an object to
+    write to.
+
+    >>> def getc(size, timeout=1):
+    ...     return data or None
+    ...
+    >>> def putc(data, timeout=1):
+    ...     return size or None
+    ...
+    >>> modem = XMODEM(getc, putc)
+
+
+    :param getc: Function to retreive bytes from a stream
+    :type getc: callable
+    :param putc: Function to transmit bytes to a stream
+    :type putc: callable
+    :param mode: XMODEM protocol mode
+    :type mode: string
+    :param pad: Padding character to make the packets match the packet size
+    :type pad: char
+
+    '''
+
+    # crctab calculated by Mark G. Mendel, Network Systems Corporation
+    crctable = [
+        0x0000, 0x1021, 0x2042, 0x3063, 0x4084, 0x50a5, 0x60c6, 0x70e7,
+        0x8108, 0x9129, 0xa14a, 0xb16b, 0xc18c, 0xd1ad, 0xe1ce, 0xf1ef,
+        0x1231, 0x0210, 0x3273, 0x2252, 0x52b5, 0x4294, 0x72f7, 0x62d6,
+        0x9339, 0x8318, 0xb37b, 0xa35a, 0xd3bd, 0xc39c, 0xf3ff, 0xe3de,
+        0x2462, 0x3443, 0x0420, 0x1401, 0x64e6, 0x74c7, 0x44a4, 0x5485,
+        0xa56a, 0xb54b, 0x8528, 0x9509, 0xe5ee, 0xf5cf, 0xc5ac, 0xd58d,
+        0x3653, 0x2672, 0x1611, 0x0630, 0x76d7, 0x66f6, 0x5695, 0x46b4,
+        0xb75b, 0xa77a, 0x9719, 0x8738, 0xf7df, 0xe7fe, 0xd79d, 0xc7bc,
+        0x48c4, 0x58e5, 0x6886, 0x78a7, 0x0840, 0x1861, 0x2802, 0x3823,
+        0xc9cc, 0xd9ed, 0xe98e, 0xf9af, 0x8948, 0x9969, 0xa90a, 0xb92b,
+        0x5af5, 0x4ad4, 0x7ab7, 0x6a96, 0x1a71, 0x0a50, 0x3a33, 0x2a12,
+        0xdbfd, 0xcbdc, 0xfbbf, 0xeb9e, 0x9b79, 0x8b58, 0xbb3b, 0xab1a,
+        0x6ca6, 0x7c87, 0x4ce4, 0x5cc5, 0x2c22, 0x3c03, 0x0c60, 0x1c41,
+        0xedae, 0xfd8f, 0xcdec, 0xddcd, 0xad2a, 0xbd0b, 0x8d68, 0x9d49,
+        0x7e97, 0x6eb6, 0x5ed5, 0x4ef4, 0x3e13, 0x2e32, 0x1e51, 0x0e70,
+        0xff9f, 0xefbe, 0xdfdd, 0xcffc, 0xbf1b, 0xaf3a, 0x9f59, 0x8f78,
+        0x9188, 0x81a9, 0xb1ca, 0xa1eb, 0xd10c, 0xc12d, 0xf14e, 0xe16f,
+        0x1080, 0x00a1, 0x30c2, 0x20e3, 0x5004, 0x4025, 0x7046, 0x6067,
+        0x83b9, 0x9398, 0xa3fb, 0xb3da, 0xc33d, 0xd31c, 0xe37f, 0xf35e,
+        0x02b1, 0x1290, 0x22f3, 0x32d2, 0x4235, 0x5214, 0x6277, 0x7256,
+        0xb5ea, 0xa5cb, 0x95a8, 0x8589, 0xf56e, 0xe54f, 0xd52c, 0xc50d,
+        0x34e2, 0x24c3, 0x14a0, 0x0481, 0x7466, 0x6447, 0x5424, 0x4405,
+        0xa7db, 0xb7fa, 0x8799, 0x97b8, 0xe75f, 0xf77e, 0xc71d, 0xd73c,
+        0x26d3, 0x36f2, 0x0691, 0x16b0, 0x6657, 0x7676, 0x4615, 0x5634,
+        0xd94c, 0xc96d, 0xf90e, 0xe92f, 0x99c8, 0x89e9, 0xb98a, 0xa9ab,
+        0x5844, 0x4865, 0x7806, 0x6827, 0x18c0, 0x08e1, 0x3882, 0x28a3,
+        0xcb7d, 0xdb5c, 0xeb3f, 0xfb1e, 0x8bf9, 0x9bd8, 0xabbb, 0xbb9a,
+        0x4a75, 0x5a54, 0x6a37, 0x7a16, 0x0af1, 0x1ad0, 0x2ab3, 0x3a92,
+        0xfd2e, 0xed0f, 0xdd6c, 0xcd4d, 0xbdaa, 0xad8b, 0x9de8, 0x8dc9,
+        0x7c26, 0x6c07, 0x5c64, 0x4c45, 0x3ca2, 0x2c83, 0x1ce0, 0x0cc1,
+        0xef1f, 0xff3e, 0xcf5d, 0xdf7c, 0xaf9b, 0xbfba, 0x8fd9, 0x9ff8,
+        0x6e17, 0x7e36, 0x4e55, 0x5e74, 0x2e93, 0x3eb2, 0x0ed1, 0x1ef0,
+    ]
+
+    def __init__(self, getc, putc, mode='xmodem', pad=b'\x1a'):
+        self.getc = getc
+        self.putc = putc
+        self.mode = mode
+        self.pad = pad
+
+    def abort(self, count=2, timeout=60):
+        '''
+        Send an abort sequence using CAN bytes.
+        '''
+        for counter in range(0, count):
+            self.putc(CAN, timeout)
+
+    def send(self, stream, retry=32, timeout=360, quiet=0, callback=None):
+        '''
+        Send a stream via the XMODEM protocol.
+
+            >>> stream = file('/etc/issue', 'rb')
+            >>> print modem.send(stream)
+            True
+
+        Returns ``True`` upon succesful transmission or ``False`` in case of
+        failure.
+
+        :param stream: The stream object to send data from.
+        :type stream: stream (file, etc.)
+        :param retry: The maximum number of times to try to resend a failed
+                      packet before failing.
+        :type retry: int
+        :param timeout: The number of seconds to wait for a response before
+                        timing out.
+        :type timeout: int
+        :param quiet: If 0, it prints info to stderr.  If 1, it does not print any info.
+        :type quiet: int
+        :param callback: Reference to a callback function that has the
+                         following signature.  This is useful for
+                         getting status updates while a xmodem
+                         transfer is underway.
+                         Expected callback signature:
+                         def callback(total_packets, success_count, error_count)
+        :type callback: callable
+        '''
+
+        # initialize protocol
+        try:
+            packet_size = dict(
+                xmodem    = 128,
+                xmodem1k  = 1024,
+            )[self.mode]
+        except AttributeError:
+            raise ValueError("An invalid mode was supplied")
+
+        error_count = 0
+        crc_mode = 0
+        cancel = 0
+        while True:
+            char = self.getc(1)
+            if char:
+                if char == NAK:
+                    crc_mode = 0
+                    break
+                elif char == CRC:
+                    crc_mode = 1
+                    break
+                elif char == CAN:
+                    if not quiet:
+                        print('received CAN', file=sys.stderr)
+                    if cancel:
+                        return False
+                    else:
+                        cancel = 1
+                else:
+                    log.error('send ERROR expected NAK/CRC, got %s' % \
+                        (ord(char),))
+
+            error_count += 1
+            if error_count >= retry:
+                self.abort(timeout=timeout)
+                return False
+
+        # send data
+        error_count = 0
+        success_count = 0
+        total_packets = 0
+        sequence = 1
+        while True:
+            data = stream.read(packet_size)
+            if not data:
+                log.info('sending EOT')
+                # end of stream
+                break
+            total_packets += 1
+            data = data.ljust(packet_size, self.pad)
+            if crc_mode:
+                crc = self.calc_crc(data)
+            else:
+                crc = self.calc_checksum(data)
+
+            # emit packet
+            while True:
+                if packet_size == 128:
+                    self.putc(SOH)
+                else:  # packet_size == 1024
+                    self.putc(STX)
+                self.putc(bytes([sequence]))
+                self.putc(bytes([0xff - sequence]))
+                self.putc(data)
+                if crc_mode:
+                    self.putc(bytes([crc >> 8]))
+                    self.putc(bytes([crc & 0xff]))
+                else:
+                    self.putc(bytes([crc]))
+
+                char = self.getc(1, timeout)
+                if char == ACK:
+                    success_count += 1
+                    if isinstance(callback, collections.Callable):
+                        callback(total_packets, success_count, error_count)
+                    break
+                if char == NAK:
+                    error_count += 1
+                    if isinstance(callback, collections.Callable):
+                        callback(total_packets, success_count, error_count)
+                    if error_count >= retry:
+                        # excessive amounts of retransmissions requested,
+                        # abort transfer
+                        self.abort(timeout=timeout)
+                        log.warning('excessive NAKs, transfer aborted')
+                        return False
+
+                    # return to loop and resend
+                    continue
+                else:
+                    log.error('Not ACK, Not NAK')
+                    error_count += 1
+                    if isinstance(callback, collections.Callable):
+                        callback(total_packets, success_count, error_count)
+                    if error_count >= retry:
+                        # excessive amounts of retransmissions requested,
+                        # abort transfer
+                        self.abort(timeout=timeout)
+                        log.warning('excessive protocol errors, transfer aborted')
+                        return False
+
+                    # return to loop and resend
+                    continue
+
+                # protocol error
+                self.abort(timeout=timeout)
+                log.error('protocol error')
+                return False
+
+            # keep track of sequence
+            sequence = (sequence + 1) % 0x100
+
+        while True:
+            # end of transmission
+            self.putc(EOT)
+
+            #An ACK should be returned
+            char = self.getc(1, timeout)
+            if char == ACK:
+                break
+            else:
+                error_count += 1
+                if error_count >= retry:
+                    self.abort(timeout=timeout)
+                    log.warning('EOT was not ACKd, transfer aborted')
+                    return False
+
+        return True
+
+    def recv(self, stream, crc_mode=1, retry=16, timeout=60, delay=1, quiet=0):
+        '''
+        Receive a stream via the XMODEM protocol.
+
+            >>> stream = file('/etc/issue', 'wb')
+            >>> print modem.recv(stream)
+            2342
+
+        Returns the number of bytes received on success or ``None`` in case of
+        failure.
+        '''
+
+        # initiate protocol
+        error_count = 0
+        char = 0
+        cancel = 0
+        while True:
+            # first try CRC mode, if this fails,
+            # fall back to checksum mode
+            if error_count >= retry:
+                self.abort(timeout=timeout)
+                return None
+            elif crc_mode and error_count < (retry / 2):
+                if not self.putc(CRC):
+                    time.sleep(delay)
+                    error_count += 1
+            else:
+                crc_mode = 0
+                if not self.putc(NAK):
+                    time.sleep(delay)
+                    error_count += 1
+
+            char = self.getc(1, timeout)
+            if not char:
+                error_count += 1
+                continue
+            elif char == SOH:
+                #crc_mode = 0
+                break
+            elif char == STX:
+                break
+            elif char == CAN:
+                if cancel:
+                    return None
+                else:
+                    cancel = 1
+            else:
+                error_count += 1
+
+        # read data
+        error_count = 0
+        income_size = 0
+        packet_size = 128
+        sequence = 1
+        cancel = 0
+        while True:
+            while True:
+                if char == SOH:
+                    packet_size = 128
+                    break
+                elif char == STX:
+                    packet_size = 1024
+                    break
+                elif char == EOT:
+                    # We received an EOT, so send an ACK and return the received
+                    # data length
+                    self.putc(ACK)
+                    return income_size
+                elif char == CAN:
+                    # cancel at two consecutive cancels
+                    if cancel:
+                        return None
+                    else:
+                        cancel = 1
+                else:
+                    if not quiet:
+                        print('recv ERROR expected SOH/EOT, got', ord(char), file=sys.stderr)
+                    error_count += 1
+                    if error_count >= retry:
+                        self.abort()
+                        return None
+            # read sequence
+            error_count = 0
+            cancel = 0
+            seq1 = ord(self.getc(1))
+            seq2 = 0xff - ord(self.getc(1))
+            if seq1 == sequence and seq2 == sequence:
+                # sequence is ok, read packet
+                # packet_size + checksum
+                data = self.getc(packet_size + 1 + crc_mode, timeout)
+                if crc_mode:
+                    csum = (ord(data[-2]) << 8) + ord(data[-1])
+                    data = data[:-2]
+                    log.debug('CRC (%04x <> %04x)' % \
+                        (csum, self.calc_crc(data)))
+                    valid = csum == self.calc_crc(data)
+                else:
+                    csum = data[-1]
+                    data = data[:-1]
+                    log.debug('checksum (checksum(%02x <> %02x)' % \
+                        (ord(csum), self.calc_checksum(data)))
+                    valid = ord(csum) == self.calc_checksum(data)
+
+                # valid data, append chunk
+                if valid:
+                    income_size += len(data)
+                    stream.write(data)
+                    self.putc(ACK)
+                    sequence = (sequence + 1) % 0x100
+                    char = self.getc(1, timeout)
+                    continue
+            else:
+                # consume data
+                self.getc(packet_size + 1 + crc_mode)
+                self.debug('expecting sequence %d, got %d/%d' % \
+                    (sequence, seq1, seq2))
+
+            # something went wrong, request retransmission
+            self.putc(NAK)
+
+    def calc_checksum(self, data, checksum=0):
+        '''
+        Calculate the checksum for a given block of data, can also be used to
+        update a checksum.
+
+            >>> csum = modem.calc_checksum('hello')
+            >>> csum = modem.calc_checksum('world', csum)
+            >>> hex(csum)
+            '0x3c'
+
+        '''
+        return (sum(map(ord, data)) + checksum) % 256
+
+    def calc_crc(self, data, crc=0):
+        '''
+        Calculate the Cyclic Redundancy Check for a given block of data, can
+        also be used to update a CRC.
+
+            >>> crc = modem.calc_crc('hello')
+            >>> crc = modem.calc_crc('world', crc)
+            >>> hex(crc)
+            '0xd5e3'
+
+        '''
+        for char in data:
+            crc = (crc << 8) ^ self.crctable[((crc >> 8) ^ int(char)) & 0xff]
+        return crc & 0xffff
+
+
+XMODEM1k  = partial(XMODEM, mode='xmodem1k')
+
+
+def run():
+    import optparse
+    import subprocess
+
+    parser = optparse.OptionParser(usage='%prog [<options>] <send|recv> filename filename')
+    parser.add_option('-m', '--mode', default='xmodem',
+        help='XMODEM mode (xmodem, xmodem1k)')
+
+    options, args = parser.parse_args()
+    if len(args) != 3:
+        parser.error('invalid arguments')
+        return 1
+
+    elif args[0] not in ('send', 'recv'):
+        parser.error('invalid mode')
+        return 1
+
+    def _func(so, si):
+        import select
+        import subprocess
+
+        print('si', si)
+        print('so', so)
+
+        def getc(size, timeout=3):
+            w,t,f = select.select([so], [], [], timeout)
+            if w:
+                data = so.read(size)
+            else:
+                data = None
+
+            print('getc(', repr(data), ')')
+            return data
+
+        def putc(data, timeout=3):
+            w,t,f = select.select([], [si], [], timeout)
+            if t:
+                si.write(data)
+                si.flush()
+                size = len(data)
+            else:
+                size = None
+
+            print('putc(', repr(data), repr(size), ')')
+            return size
+
+        return getc, putc
+
+    def _pipe(*command):
+        pipe = subprocess.Popen(command,
+            stdout=subprocess.PIPE, stdin=subprocess.PIPE)
+        return pipe.stdout, pipe.stdin
+
+    if args[0] == 'recv':
+        import io
+        getc, putc = _func(*_pipe('sz', '--xmodem', args[2]))
+        stream = open(args[1], 'wb')
+        xmodem = XMODEM(getc, putc, mode=options.mode)
+        status = xmodem.recv(stream, retry=8)
+        stream.close()
+
+    elif args[0] == 'send':
+        getc, putc = _func(*_pipe('rz', '--xmodem', args[2]))
+        stream = open(args[1], 'rb')
+        xmodem = XMODEM(getc, putc, mode=options.mode)
+        status = xmodem.send(stream, retry=8)
+        stream.close()
+
+if __name__ == '__main__':
+    sys.exit(run())