diff -Naurp binutils/size.c binutils/size.c
--- binutils/size.c	2012-12-17 16:51:45.000000000 +0530
+++ binutils/size.c	2012-12-17 16:53:47.000000000 +0530
@@ -96,12 +96,14 @@ static int return_code = 0;
 #define AVR2K 2048UL
 #define AVR4K 4096UL
 #define AVR8K 8192UL
+#define AVR14K 14336UL
 #define AVR16K 16384UL
 #define AVR20K 20480UL
 #define AVR24K 24576UL
 #define AVR32K 32768UL
 #define AVR36K 36864UL
 #define AVR40K 40960UL
+#define AVR52K 53248UL
 #define AVR64K 65536UL
 #define AVR68K 69632UL
 #define AVR128K 131072UL
@@ -216,6 +218,8 @@ avr_device_t avr[] =
 	{"atmega64hve",   AVR64K,  AVR4K,  AVR1K},
 	{"atmega64m1",    AVR64K,  AVR4K,  AVR2K},
 	{"m3000",         AVR64K,  AVR4K,  0UL},
+	
+	{"atmxt336s",     AVR52K,  AVR14K, 0UL},
 
 	{"atmega406",     AVR40K,  AVR2K,  AVR512},
 
diff -Naurp gas/config/tc-avr.c gas/config/tc-avr.c
--- gas/config/tc-avr.c	2012-12-17 16:53:23.000000000 +0530
+++ gas/config/tc-avr.c	2012-12-17 16:53:47.000000000 +0530
@@ -278,6 +278,7 @@ static struct mcu_type_s mcu_types[] =
   {"atmega2561", AVR_ISA_AVR6,    bfd_mach_avr6},
   {"atmega256rfr2", AVR_ISA_AVR6, bfd_mach_avr6},
   {"atmega2564rfr2",AVR_ISA_AVR6, bfd_mach_avr6},
+  {"atmxt336s",   AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
   {"atxmega16a4", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
   {"atxmega16a4u",AVR_ISA_XMEGAU, bfd_mach_avrxmega2},
   {"atxmega16c4", AVR_ISA_XMEGAU, bfd_mach_avrxmega2},
diff -Naurp gas/doc/c-avr.texi gas/doc/c-avr.texi
--- gas/doc/c-avr.texi	2012-12-17 16:51:14.000000000 +0530
+++ gas/doc/c-avr.texi	2012-12-17 16:55:26.000000000 +0530
@@ -94,7 +94,7 @@ atmega2560, atmega2561, atmega256rfr2).
 Instruction set avrxmega2 is for the XMEGA AVR core with 8K to 64K program
 memory space and less than 64K data space (MCU types: atxmega16a4, atxmega16a4u,
 atxmega16c4, atxmega16d4, atxmega16x1, atxmega32a4, atxmega32a4u, atxmega32c4, 
-atxmega32d4, atxmega16e5, atxmega8e5, atxmega32e5, atxmega32x1).
+atxmega32d4, atxmega16e5, atxmega8e5, atxmega32e5, atxmega32x1, atmxt336s).
 
 Instruction set avrxmega3 is for the XMEGA AVR core with 8K to 64K program
 memory space and greater than 64K data space (MCU types: none).