diff --git a/avrdude/ChangeLog b/avrdude/ChangeLog
index cd5b590d..58d33bb2 100644
--- a/avrdude/ChangeLog
+++ b/avrdude/ChangeLog
@@ -1,3 +1,7 @@
+2004-07-04  Jan-Hinnerk Reichert  <hinni@despammed.com>
+	* avrdude.conf.in: Added support for
+        ATtiny2313 (contributed by Bob Paddock)
+
 2004-06-25  Joerg Wunsch <j@uriah.heep.sax.de>
 
 	* avrdude.conf.in: Fix efuse bits for ATmega169.
diff --git a/avrdude/avrdude.conf.in b/avrdude/avrdude.conf.in
index 76bf13f0..8938c4c2 100644
--- a/avrdude/avrdude.conf.in
+++ b/avrdude/avrdude.conf.in
@@ -3048,3 +3048,121 @@ part
   ;
 
 
+#------------------------------------------------------------
+# ATtiny2313
+#------------------------------------------------------------
+
+part
+     id            = "t2313";
+     desc          = "ATtiny2313";
+     stk500_devcode   = 0x23;
+##  avr910_devcode   = ?;
+##  Try the AT90S2313 devcode:
+     avr910_devcode   = 0x20;
+     pagel            = 0xD4;
+     bs2              = 0xD6;
+     reset            = io;
+     chip_erase_delay = 9000;
+
+     pgm_enable       = "1 0 1 0  1 1 0 0    0 1 0 1  0 0 1 1",
+                        "x x x x  x x x x    x x x x  x x x x";
+
+     chip_erase       = "1 0 1 0  1 1 0 0    1 0 0 x  x x x x",
+                        "x x x x  x x x x    x x x x  x x x x";
+
+     memory "eeprom"
+         size            = 128;
+         min_write_delay = 4000;
+         max_write_delay = 4500;
+         readback_p1     = 0xff;
+         readback_p2     = 0xff;
+         read            = "1  0  1  0   0  0  0  0   0 0 0 x  x x x x",
+                           "x a6 a5 a4  a3 a2 a1 a0   o o o o  o o o o";
+
+         write           = "1  1  0  0   0  0  0  0   0 0 0 x  x x x x",
+                           "x a6 a5 a4  a3 a2 a1 a0   i i i i  i i i i";
+       ;
+     memory "flash"
+         paged           = yes;
+         size            = 2048;
+         page_size       = 32;
+         num_pages       = 64;
+         min_write_delay = 4500;
+         max_write_delay = 4500;
+         readback_p1     = 0xff;
+         readback_p2     = 0xff;
+         read_lo         = "  0   0   1   0    0   0   0   0",
+                           "  0   0   0   0    0   0  a9  a8",
+                           " a7  a6  a5  a4   a3  a2  a1  a0",
+                           "  o   o   o   o    o   o   o   o";
+
+         read_hi         = "  0   0   1   0    1   0   0   0",
+                           "  0   0   0   0    0   0  a9  a8",
+                           " a7  a6  a5  a4   a3  a2  a1  a0",
+                           "  o   o   o   o    o   o   o   o";
+
+# The information in the data sheet of April/2004 is wrong, this works:
+         loadpage_lo     = "  0   1   0   0    0   0   0   0",
+                           "  0   0   0   x    x   x   x   x",
+                           "  x   x   x   x   a3  a2  a1  a0",
+                           "  i   i   i   i    i   i   i   i";
+
+# The information in the data sheet of April/2004 is wrong, this works:
+         loadpage_hi     = "  0   1   0   0    1   0   0   0",
+                           "  0   0   0   x    x   x   x   x",
+                           "  x   x   x   x   a3  a2  a1  a0",
+                           "  i   i   i   i    i   i   i   i";
+
+# The information in the data sheet of April/2004 is wrong, this works:
+         writepage       = "  0  1  0  0   1  1  0  0",
+                           "  0  0  0  0   0  0 a9 a8",
+                           " a7 a6 a5 a4   x  x  x  x",
+                           "  x  x  x  x   x  x  x  x";
+       ;
+#   ATtiny2313 has Signature Bytes: 0x1E 0x91 0x0A.
+     memory "signature"
+         size            = 3;
+         read            = "0  0  1  1   0  0  0  0   0  0  0  x   x  x  x  x",
+                           "x  x  x  x   x  x a1 a0   o  o  o  o   o  o  o  o";
+       ;
+     memory "lock"
+         size            = 1;
+         write           = "1 0 1 0  1 1 0 0  1 1 1 x  x x x x",
+                           "x x x x  x x x x  1 1 i i  i i i i";
+       ;
+
+     memory "lfuse"
+         size            = 1;
+         write           = "1 0 1 0  1 1 0 0  1 0 1 0  0 0 0 0",
+                           "x x x x  x x x x  i i i i  i i i i";
+
+         read            = "0 1 0 1  0 0 0 0  0 0 0 0  0 0 0 0",
+                           "x x x x  x x x x  o o o o  o o o o";
+       ;
+
+     memory "hfuse"
+         size            = 1;
+         write           = "1 0 1 0  1 1 0 0  1 0 1 0  1 0 0 0",
+                           "x x x x  x x x x  i i i i  i i i i";
+
+         read            = "0 1 0 1  1 0 0 0  0 0 0 0  1 0 0 0",
+                           "x x x x  x x x x  o o o o  o o o o";
+       ;
+
+     memory "efuse"
+         size            = 1;
+         write           = "1 0 1 0  1 1 0 0  1 0 1 0  0 1 0 0",
+                           "x x x x  x x x x  x x x x  x x x i";
+
+         read            = "0 1 0 1  0 0 0 0  0 0 0 0  1 0 0 0",
+                           "x x x x  x x x x  o o o o  o o o o";
+     ;
+# The Tiny2313 has calibration data for both 4 MHz and 8 MHz.
+# The information in the data sheet of April/2004 is wrong, this works:
+
+     memory "calibration"
+         size            = 2;
+         read            = "0  0  1  1   1  0  0  0    0 0 0 x  x x x x",
+                           "0  0  0  0   0  0  0  a0   o o o o  o o o o";
+     ;
+  ;