Index: gas/config/tc-avr.c
===================================================================
RCS file: /cvs/src/src/gas/config/tc-avr.c,v
retrieving revision 1.76
diff -u -p -r1.76 tc-avr.c
--- gas/config/tc-avr.c	22 Mar 2011 18:10:44 -0000	1.76
+++ gas/config/tc-avr.c	22 Mar 2011 20:35:54 -0000
@@ -247,19 +247,25 @@ static struct mcu_type_s mcu_types[] =
   {"atmega2561", AVR_ISA_AVR6,    bfd_mach_avr6},
   {"atxmega16a4", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
   {"atxmega16d4", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
+  {"atxmega16x1", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
   {"atxmega32a4", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
   {"atxmega32d4", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
+  {"atxmega32x1", AVR_ISA_XMEGA,  bfd_mach_avrxmega2},
   {"atxmega64a3", AVR_ISA_XMEGA,  bfd_mach_avrxmega4},
   {"atxmega64d3", AVR_ISA_XMEGA,  bfd_mach_avrxmega4},
   {"atxmega64a1", AVR_ISA_XMEGA,  bfd_mach_avrxmega5},
+  {"atxmega64a1u",AVR_ISA_XMEGA,  bfd_mach_avrxmega5},
   {"atxmega128a3", AVR_ISA_XMEGA, bfd_mach_avrxmega6},
+  {"atxmega128b1", AVR_ISA_XMEGA, bfd_mach_avrxmega6},
   {"atxmega128d3", AVR_ISA_XMEGA, bfd_mach_avrxmega6},
   {"atxmega192a3", AVR_ISA_XMEGA, bfd_mach_avrxmega6},
   {"atxmega192d3", AVR_ISA_XMEGA, bfd_mach_avrxmega6},
   {"atxmega256a3", AVR_ISA_XMEGA, bfd_mach_avrxmega6},
   {"atxmega256a3b",AVR_ISA_XMEGA, bfd_mach_avrxmega6},
+  {"atxmega256a3bu",AVR_ISA_XMEGA,bfd_mach_avrxmega6},
   {"atxmega256d3", AVR_ISA_XMEGA, bfd_mach_avrxmega6},
   {"atxmega128a1", AVR_ISA_XMEGA, bfd_mach_avrxmega7},
+  {"atxmega128a1u", AVR_ISA_XMEGA, bfd_mach_avrxmega7},
   {NULL, 0, 0}
 };
 
Index: gas/doc/c-avr.texi
===================================================================
RCS file: /cvs/src/src/gas/doc/c-avr.texi,v
retrieving revision 1.31
diff -u -p -r1.31 c-avr.texi
--- gas/doc/c-avr.texi	22 Mar 2011 18:10:44 -0000	1.31
+++ gas/doc/c-avr.texi	22 Mar 2011 20:35:54 -0000
@@ -87,24 +87,26 @@ atmega2560, atmega2561).
 
 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, atxmega16d4,
-atxmega32d4).
+atxmega16x1, atxmega32a4, atxmega32d4, atxmega32x1).
 
 Instruction set avrxmega3 is for the XMEGA AVR core with 8K to 64K program
-memory space and greater than 64K data space (MCU types: atxmega32a4).
+memory space and greater than 64K data space (MCU types: none).
 
 Instruction set avrxmega4 is for the XMEGA AVR core with up to 64K program
 memory space and less than 64K data space (MCU types: atxmega64a3, atxmega64d3).
 
 Instruction set avrxmega5 is for the XMEGA AVR core with up to 64K program 
-memory space and greater than 64K data space (MCU types: atxmega64a1).
+memory space and greater than 64K data space (MCU types: atxmega64a1,
+atxmega64a1u).
 
 Instruction set avrxmega6 is for the XMEGA AVR core with up to 256K program
 memory space and less than 64K data space (MCU types: atxmega128a3,
-atxmega128d3, atxmega192a3, atxmega192d3, atxmega256a3, atxmega256a3b,
-atxmega192d3).
+atxmega128d3, atxmega192a3, atxmega128b1, atxmega192d3, atxmega256a3, 
+atxmega256a3b, atxmega256a3bu, atxmega192d3).
 
 Instruction set avrxmega7 is for the XMEGA AVR core with up to 256K program
-memory space and greater than 64K data space (MCU types: atxmega128a1).
+memory space and greater than 64K data space (MCU types: atxmega128a1,
+atxmega128a1u).
 
 @cindex @code{-mall-opcodes} command line option, AVR
 @item -mall-opcodes