diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0001-MicroBlaze-Add-wdc.ext.clear-and-wdc.ext.flush-insns.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0001-MicroBlaze-Add-wdc.ext.clear-and-wdc.ext.flush-insns.patch
new file mode 100644
index 0000000..878bb32
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0001-MicroBlaze-Add-wdc.ext.clear-and-wdc.ext.flush-insns.patch
@@ -0,0 +1,65 @@
+From 91f39b692c48336117c092e4afd80899c97779e6 Mon Sep 17 00:00:00 2001
+From: David Holsgrove <david.holsgrove@xilinx.com>
+Date: Mon, 28 Aug 2017 19:53:52 -0700
+Subject: [PATCH] MicroBlaze Add wdc.ext.clear and wdc.ext.flush insns
+
+Added two new instructions, wdc.ext.clear and wdc.ext.flush,
+to enable MicroBlaze to flush an external cache, which is
+used with the new coherency support for multiprocessing.
+
+Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
+Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+Upstream-Status: Pending
+
+---
+ opcodes/microblaze-opc.h  | 5 ++++-
+ opcodes/microblaze-opcm.h | 4 ++--
+ 2 files changed, 6 insertions(+), 3 deletions(-)
+
+diff --git a/opcodes/microblaze-opc.h b/opcodes/microblaze-opc.h
+index ede8af8..773dc81 100644
+--- a/opcodes/microblaze-opc.h
++++ b/opcodes/microblaze-opc.h
+@@ -91,6 +91,7 @@
+ #define OPCODE_MASK_H3  0xFC000600  /* High 6 bits and bits 21, 22.  */
+ #define OPCODE_MASK_H32 0xFC00FC00  /* High 6 bits and bit 16-21.  */
+ #define OPCODE_MASK_H34B 0xFC0000FF /* High 6 bits and low 8 bits.  */
++#define OPCODE_MASK_H35B 0xFC0004FF /* High 6 bits and low 9 bits.  */
+ #define OPCODE_MASK_H34C 0xFC0007E0 /* High 6 bits and bits 21-26.  */
+ 
+ /* New Mask for msrset, msrclr insns.  */
+@@ -101,7 +102,7 @@
+ #define DELAY_SLOT 1
+ #define NO_DELAY_SLOT 0
+ 
+-#define MAX_OPCODES 289
++#define MAX_OPCODES 291
+ 
+ struct op_code_struct
+ {
+@@ -174,7 +175,9 @@ struct op_code_struct
+   {"wic",   INST_TYPE_R1_R2_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000068, OPCODE_MASK_H34B, wic, special_inst },
+   {"wdc",   INST_TYPE_R1_R2_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000064, OPCODE_MASK_H34B, wdc, special_inst },
+   {"wdc.clear", INST_TYPE_R1_R2_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000066, OPCODE_MASK_H34B, wdcclear, special_inst },
++  {"wdc.ext.clear", INST_TYPE_R1_R2_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000466, OPCODE_MASK_H35B, wdcextclear, special_inst },
+   {"wdc.flush", INST_TYPE_R1_R2_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000074, OPCODE_MASK_H34B, wdcflush, special_inst },
++  {"wdc.ext.flush", INST_TYPE_R1_R2_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000476, OPCODE_MASK_H35B, wdcextflush, special_inst },
+   {"mts",   INST_TYPE_SPECIAL_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_MTS, 0x9400C000, OPCODE_MASK_H13S, mts, special_inst },
+   {"mfs",   INST_TYPE_RD_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_MFS, 0x94008000, OPCODE_MASK_H23S, mfs, special_inst },
+   {"br",    INST_TYPE_R2, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x98000000, OPCODE_MASK_H124, br, branch_inst },
+diff --git a/opcodes/microblaze-opcm.h b/opcodes/microblaze-opcm.h
+index 92f3f19..7338f6a 100644
+--- a/opcodes/microblaze-opcm.h
++++ b/opcodes/microblaze-opcm.h
+@@ -33,8 +33,8 @@ enum microblaze_instr
+   /* 'or/and/xor' are C++ keywords.  */
+   microblaze_or, microblaze_and, microblaze_xor,
+   andn, pcmpbf, pcmpbc, pcmpeq, pcmpne, sra, src, srl, sext8, sext16,
+-  wic, wdc, wdcclear, wdcflush, mts, mfs, mbar, br, brd,
+-  brld, bra, brad, brald, microblaze_brk, beq, beqd, bne, bned, blt,
++  wic, wdc, wdcclear, wdcextclear, wdcflush, wdcextflush, mts, mfs, mbar, br,
++  brd, brld, bra, brad, brald, microblaze_brk, beq, beqd, bne, bned, blt,
+   bltd, ble, bled, bgt, bgtd, bge, bged, ori, andi, xori, andni,
+   imm, rtsd, rtid, rtbd, rted, bri, brid, brlid, brai, braid, bralid,
+   brki, beqi, beqid, bnei, bneid, blti, bltid, blei, bleid, bgti,
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0002-MicroBlaze-add-mlittle-endian-and-mbig-endian-flags.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0002-MicroBlaze-add-mlittle-endian-and-mbig-endian-flags.patch
new file mode 100644
index 0000000..edeecfd
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0002-MicroBlaze-add-mlittle-endian-and-mbig-endian-flags.patch
@@ -0,0 +1,64 @@
+From 8b733a61ab54ba4cedb234020562502d20eebcbb Mon Sep 17 00:00:00 2001
+From: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Date: Mon, 28 Aug 2017 19:53:53 -0700
+Subject: [PATCH] MicroBlaze add mlittle-endian and mbig-endian flags
+
+Added support in gas for mlittle-endian and mbig-endian flags
+as options.
+
+Updated show usage for MicroBlaze specific assembler options
+to include new entries.
+
+Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Signed-off-by: David Holsgrove <david.holsgrove@xilinx.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+Upstream-Status: Pending
+
+---
+ gas/config/tc-microblaze.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/gas/config/tc-microblaze.c b/gas/config/tc-microblaze.c
+index 0194cd9..42dd7ae 100644
+--- a/gas/config/tc-microblaze.c
++++ b/gas/config/tc-microblaze.c
+@@ -37,6 +37,8 @@
+ 
+ #define OPTION_EB (OPTION_MD_BASE + 0)
+ #define OPTION_EL (OPTION_MD_BASE + 1)
++#define OPTION_LITTLE (OPTION_MD_BASE + 2)
++#define OPTION_BIG (OPTION_MD_BASE + 3)
+ 
+ void microblaze_generate_symbol (char *sym);
+ static bfd_boolean check_spl_reg (unsigned *);
+@@ -1837,6 +1839,8 @@ struct option md_longopts[] =
+ {
+   {"EB", no_argument, NULL, OPTION_EB},
+   {"EL", no_argument, NULL, OPTION_EL},
++  {"mlittle-endian", no_argument, NULL, OPTION_LITTLE},
++  {"mbig-endian", no_argument, NULL, OPTION_BIG},
+   { NULL,          no_argument, NULL, 0}
+ };
+ 
+@@ -2471,9 +2475,11 @@ md_parse_option (int c, const char * arg ATTRIBUTE_UNUSED)
+   switch (c)
+     {
+     case OPTION_EB:
++    case OPTION_BIG:
+       target_big_endian = 1;
+       break;
+     case OPTION_EL:
++    case OPTION_LITTLE:
+       target_big_endian = 0;
+       break;
+     default:
+@@ -2488,6 +2494,9 @@ md_show_usage (FILE * stream ATTRIBUTE_UNUSED)
+   /*  fprintf(stream, _("\
+       MicroBlaze options:\n\
+       -noSmall         Data in the comm and data sections do not go into the small data section\n")); */
++  fprintf (stream, _(" MicroBlaze specific assembler options:\n"));
++  fprintf (stream, "  -%-23s%s\n", "mbig-endian", N_("assemble for a big endian cpu"));
++  fprintf (stream, "  -%-23s%s\n", "mlittle-endian", N_("assemble for a little endian cpu"));
+ }
+ 
+ 
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0003-Disable-the-warning-message-for-eh_frame_hdr.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0003-Disable-the-warning-message-for-eh_frame_hdr.patch
new file mode 100644
index 0000000..aee0c01
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0003-Disable-the-warning-message-for-eh_frame_hdr.patch
@@ -0,0 +1,39 @@
+From dac72d809be9faf9380b181df0c19a2c6d744c54 Mon Sep 17 00:00:00 2001
+From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
+Date: Mon, 28 Aug 2017 19:53:54 -0700
+Subject: [PATCH] Disable the warning message for eh_frame_hdr
+
+Upstream-Status: Inappropriate [workaround]
+
+Rebased to 2.31
+ - Error hanlder changed
+
+Signed-off-by: Alejandro Enedino Hernandez Samaniego <alejandr@xilinx.com>
+Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+
+---
+ bfd/elf-eh-frame.c | 9 ++++++---
+ 1 file changed, 6 insertions(+), 3 deletions(-)
+
+Index: git/bfd/elf-eh-frame.c
+===================================================================
+--- git.orig/bfd/elf-eh-frame.c
++++ git/bfd/elf-eh-frame.c
+@@ -1042,10 +1042,13 @@ _bfd_elf_parse_eh_frame (bfd *abfd, stru
+   goto success;
+ 
+  free_no_table:
+-  _bfd_error_handler
++  /* FIXME: Remove the microblaze specifics when relaxing gets fixed.  */
++  if (bfd_get_arch(abfd) != bfd_arch_microblaze) {
+     /* xgettext:c-format */
+-    (_("error in %pB(%pA); no .eh_frame_hdr table will be created"),
+-     abfd, sec);
++    _bfd_error_handler
++      (_("error in %pB(%pA); no .eh_frame_hdr table will be created"),
++       abfd, sec);
++  }
+   hdr_info->u.dwarf.table = FALSE;
+   if (sec_info)
+     free (sec_info);
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0004-Fix-relaxation-of-assembler-resolved-references.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0004-Fix-relaxation-of-assembler-resolved-references.patch
new file mode 100644
index 0000000..b543c54
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0004-Fix-relaxation-of-assembler-resolved-references.patch
@@ -0,0 +1,81 @@
+From 927ef228dfedf229dc915b273a308ab2c7bf9e19 Mon Sep 17 00:00:00 2001
+From: "Edgar E. Iglesias" <edgar.iglesias@gmail.com>
+Date: Mon, 28 Aug 2017 19:53:55 -0700
+Subject: [PATCH] Fix relaxation of assembler resolved references
+
+03/2018
+Rebased for binutils 2.30
+
+Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+Signed-off-by: Alejandro Enedino Hernandez Samaniego <alejandr@xilinx.com>
+
+Upstream-Status: Pending
+
+---
+ bfd/elf32-microblaze.c     | 39 +++++++++++++++++++++++++++++++++++++++
+ gas/config/tc-microblaze.c |  1 +
+ 2 files changed, 40 insertions(+)
+
+diff --git a/bfd/elf32-microblaze.c b/bfd/elf32-microblaze.c
+index f1808bc..a1d810c 100644
+--- a/bfd/elf32-microblaze.c
++++ b/bfd/elf32-microblaze.c
+@@ -1887,6 +1887,45 @@ microblaze_elf_relax_section (bfd *abfd,
+ 	  irelscanend = irelocs + o->reloc_count;
+ 	  for (irelscan = irelocs; irelscan < irelscanend; irelscan++)
+ 	    {
++              if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_NONE)
++                {
++                  unsigned int val;
++
++                  isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
++
++                  /* This was a PC-relative instruction that was completely resolved.  */
++                  if (ocontents == NULL)
++                    {
++                      if (elf_section_data (o)->this_hdr.contents != NULL)
++                          ocontents = elf_section_data (o)->this_hdr.contents;
++                      else
++                        {
++                          /* We always cache the section contents.
++                             Perhaps, if info->keep_memory is FALSE, we
++                             should free them, if we are permitted to.  */
++
++                          if (o->rawsize == 0)
++                              o->rawsize = o->size;
++                          ocontents = (bfd_byte *) bfd_malloc (o->rawsize);
++                          if (ocontents == NULL)
++                              goto error_return;
++                          if (!bfd_get_section_contents (abfd, o, ocontents,
++                                                         (file_ptr) 0,
++                                                         o->rawsize))
++                              goto error_return;
++                          elf_section_data (o)->this_hdr.contents = ocontents;
++                        }
++                    }
++
++                  irelscan->r_addend -= calc_fixup (irelscan->r_addend
++                                                    + isym->st_value, sec);
++                  val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
++                  microblaze_bfd_write_imm_value_32 (abfd, ocontents + irelscan->r_offset,
++                                                     irelscan->r_addend);
++              }
++              if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_64_NONE) {
++                  fprintf(stderr, "Unhandled NONE 64\n");
++              }
+ 	      if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32)
+ 		{
+ 		  isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
+diff --git a/gas/config/tc-microblaze.c b/gas/config/tc-microblaze.c
+index 42dd7ae..50dbfc7 100644
+--- a/gas/config/tc-microblaze.c
++++ b/gas/config/tc-microblaze.c
+@@ -2183,6 +2183,7 @@ md_apply_fix (fixS *   fixP,
+       else
+ 	fixP->fx_r_type = BFD_RELOC_NONE;
+       fixP->fx_addsy = section_symbol (absolute_section);
++      fixP->fx_done = 0;
+     }
+   return;
+ }
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0005-Fixup-MicroBlaze-debug_loc-sections-after-linker-rel.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0005-Fixup-MicroBlaze-debug_loc-sections-after-linker-rel.patch
new file mode 100644
index 0000000..6cdd2cc
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0005-Fixup-MicroBlaze-debug_loc-sections-after-linker-rel.patch
@@ -0,0 +1,243 @@
+From 5bf68bc39976903929f730b6eed18686c3563c05 Mon Sep 17 00:00:00 2001
+From: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Date: Mon, 28 Aug 2017 19:53:56 -0700
+Subject: [PATCH] Fixup MicroBlaze debug_loc sections after linker relaxation
+
+Fixup debug_loc sections after linker relaxation Adds a new reloctype
+R_MICROBLAZE_32_NONE, used for passing reloc info from the assembler to
+the linker when the linker manages to fully resolve a local symbol
+reference.
+
+This is a workaround for design flaws in the assembler to
+linker interface with regards to linker relaxation.
+
+08/2018
+Rebased for binutils 2.31
+ - Some RELOC_NUMBERs were added upstream, rebased to use 33 instead of 30
+
+Signed-off-by: Edgar E. Iglesias <edgar.iglesias@gmail.com>
+Signed-off-by: Nagaraju Mekala <nmekala@xilinx.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+Signed-off-by: Alejandro Enedino Hernandez Samaniego <alejandr@xilinx.com>
+
+Upstream-Status: Pending
+
+---
+ bfd/bfd-in2.h              |  9 +++++++--
+ bfd/elf32-microblaze.c     | 45 ++++++++++++++++++++++++++++++++++++++-------
+ bfd/libbfd.h               |  1 +
+ bfd/reloc.c                |  6 ++++++
+ binutils/readelf.c         |  4 ++++
+ gas/config/tc-microblaze.c |  5 ++++-
+ include/elf/microblaze.h   |  1 +
+ 7 files changed, 61 insertions(+), 10 deletions(-)
+
+Index: git/bfd/bfd-in2.h
+===================================================================
+--- git.orig/bfd/bfd-in2.h
++++ git/bfd/bfd-in2.h
+@@ -5791,10 +5791,15 @@ value relative to the read-write small d
+ expressions of the form "Symbol Op Symbol"  */
+   BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM,
+ 
+-/* This is a 64 bit reloc that stores the 32 bit pc relative
++/* This is a 32 bit reloc that stores the 32 bit pc relative
+ value in two words (with an imm instruction).  No relocation is
+ done here - only used for relaxing  */
+-  BFD_RELOC_MICROBLAZE_64_NONE,
++  BFD_RELOC_MICROBLAZE_32_NONE,
++
++/* This is a 64 bit reloc that stores the 32 bit pc relative
++ *  +value in two words (with an imm instruction).  No relocation is
++ *   +done here - only used for relaxing  */
++    BFD_RELOC_MICROBLAZE_64_NONE,
+ 
+ /* This is a 64 bit reloc that stores the 32 bit pc relative
+ value in two words (with an imm instruction).  The relocation is
+Index: git/bfd/elf32-microblaze.c
+===================================================================
+--- git.orig/bfd/elf32-microblaze.c
++++ git/bfd/elf32-microblaze.c
+@@ -176,6 +176,20 @@ static reloc_howto_type microblaze_elf_h
+ 	  0x0000ffff,		/* Dest Mask.  */
+ 	  FALSE),		/* PC relative offset?  */
+ 
++   HOWTO (R_MICROBLAZE_32_NONE,   /* Type.  */
++          0,         /* Rightshift.  */
++          2,            /* Size (0 = byte, 1 = short, 2 = long).  */
++          32,           /* Bitsize.  */
++          TRUE,         /* PC_relative.  */
++          0,           /* Bitpos.  */
++          complain_overflow_bitfield,  /* Complain on overflow.  */
++          NULL,                  /* Special Function.  */
++          "R_MICROBLAZE_32_NONE",/* Name.  */
++          FALSE,       /* Partial Inplace.  */
++          0,          /* Source Mask.  */
++          0,         /* Dest Mask.  */
++          FALSE),       /* PC relative offset?  */
++
+    /* This reloc does nothing.	Used for relaxation.  */
+    HOWTO (R_MICROBLAZE_64_NONE,	/* Type.  */
+ 	  0,			/* Rightshift.  */
+@@ -562,6 +576,9 @@ microblaze_elf_reloc_type_lookup (bfd *
+     case BFD_RELOC_NONE:
+       microblaze_reloc = R_MICROBLAZE_NONE;
+       break;
++    case BFD_RELOC_MICROBLAZE_32_NONE:
++      microblaze_reloc = R_MICROBLAZE_32_NONE;
++      break;
+     case BFD_RELOC_MICROBLAZE_64_NONE:
+       microblaze_reloc = R_MICROBLAZE_64_NONE;
+       break;
+@@ -1918,14 +1935,23 @@ microblaze_elf_relax_section (bfd *abfd,
+ 		}
+ 	      break;
+ 	    case R_MICROBLAZE_NONE:
++            case R_MICROBLAZE_32_NONE:
+ 	      {
+ 		/* This was a PC-relative instruction that was
+ 		   completely resolved.  */
+ 		int sfix, efix;
++            unsigned int val;
+ 		bfd_vma target_address;
+ 		target_address = irel->r_addend + irel->r_offset;
+ 		sfix = calc_fixup (irel->r_offset, 0, sec);
+ 		efix = calc_fixup (target_address, 0, sec);
++
++            /* Validate the in-band val.  */
++            val = bfd_get_32 (abfd, contents + irel->r_offset);
++            if (val != irel->r_addend && ELF32_R_TYPE (irel->r_info) == R_MICROBLAZE_32_NONE) {
++               fprintf(stderr, "%d: CORRUPT relax reloc %x %lx\n", __LINE__, val, irel->r_addend);
++            }
++
+ 		irel->r_addend -= (efix - sfix);
+ 		/* Should use HOWTO.  */
+ 		microblaze_bfd_write_imm_value_32 (abfd, contents + irel->r_offset,
+@@ -1973,12 +1999,16 @@ microblaze_elf_relax_section (bfd *abfd,
+ 	  irelscanend = irelocs + o->reloc_count;
+ 	  for (irelscan = irelocs; irelscan < irelscanend; irelscan++)
+ 	    {
+-              if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_NONE)
++              if (1 && ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32_NONE)
+                 {
+                   unsigned int val;
+ 
+                   isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
+ 
++                  /* hax: We only do the following fixup for debug location lists.  */
++                  if (strcmp(".debug_loc", o->name))
++                    continue;
++
+                   /* This was a PC-relative instruction that was completely resolved.  */
+                   if (ocontents == NULL)
+                     {
+@@ -2003,15 +2033,16 @@ microblaze_elf_relax_section (bfd *abfd,
+                         }
+                     }
+ 
+-                  irelscan->r_addend -= calc_fixup (irelscan->r_addend
+-                                                    + isym->st_value, sec);
+                   val = bfd_get_32 (abfd, ocontents + irelscan->r_offset);
++
++                  if (val != irelscan->r_addend) {
++                    fprintf(stderr, "%d: CORRUPT relax reloc! %x %lx\n", __LINE__, val, irelscan->r_addend);
++                  }
++                  irelscan->r_addend -= calc_fixup (irelscan->r_addend, 0, sec);
++
+                   microblaze_bfd_write_imm_value_32 (abfd, ocontents + irelscan->r_offset,
+                                                      irelscan->r_addend);
+               }
+-              if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_64_NONE) {
+-                  fprintf(stderr, "Unhandled NONE 64\n");
+-              }
+ 	      if (ELF32_R_TYPE (irelscan->r_info) == (int) R_MICROBLAZE_32)
+ 		{
+ 		  isym = isymbuf + ELF32_R_SYM (irelscan->r_info);
+@@ -2071,7 +2102,7 @@ microblaze_elf_relax_section (bfd *abfd,
+ 			      elf_section_data (o)->this_hdr.contents = ocontents;
+ 			    }
+ 			}
+-		      irelscan->r_addend -= calc_fixup (irel->r_addend
++              irelscan->r_addend -= calc_fixup (irelscan->r_addend
+ 							+ isym->st_value,
+ 							0,
+ 							sec);
+Index: git/bfd/libbfd.h
+===================================================================
+--- git.orig/bfd/libbfd.h
++++ git/bfd/libbfd.h
+@@ -2862,6 +2862,7 @@ static const char *const bfd_reloc_code_
+   "BFD_RELOC_MICROBLAZE_32_ROSDA",
+   "BFD_RELOC_MICROBLAZE_32_RWSDA",
+   "BFD_RELOC_MICROBLAZE_32_SYM_OP_SYM",
++  "BFD_RELOC_MICROBLAZE_32_NONE",
+   "BFD_RELOC_MICROBLAZE_64_NONE",
+   "BFD_RELOC_MICROBLAZE_64_GOTPC",
+   "BFD_RELOC_MICROBLAZE_64_GOT",
+Index: git/bfd/reloc.c
+===================================================================
+--- git.orig/bfd/reloc.c
++++ git/bfd/reloc.c
+@@ -6865,6 +6865,12 @@ ENUMDOC
+   This is a 32 bit reloc for the microblaze to handle
+   expressions of the form "Symbol Op Symbol"
+ ENUM
++  BFD_RELOC_MICROBLAZE_32_NONE
++ENUMDOC
++  This is a 32 bit reloc that stores the 32 bit pc relative
++  value in two words (with an imm instruction).  No relocation is
++  done here - only used for relaxing
++ENUM
+   BFD_RELOC_MICROBLAZE_64_NONE
+ ENUMDOC
+   This is a 64 bit reloc that stores the 32 bit pc relative
+Index: git/binutils/readelf.c
+===================================================================
+--- git.orig/binutils/readelf.c
++++ git/binutils/readelf.c
+@@ -12908,6 +12908,10 @@ is_none_reloc (Filedata * filedata, unsi
+ 	      || reloc_type == 32 /* R_AVR_DIFF32.  */);
+     case EM_METAG:
+       return reloc_type == 3; /* R_METAG_NONE.  */
++    case EM_MICROBLAZE:
++      return reloc_type == 33 /* R_MICROBLAZE_32_NONE.  */
++             || reloc_type == 0 /* R_MICROBLAZE_NONE.  */
++             || reloc_type == 9; /* R_MICROBLAZE_64_NONE.  */
+     case EM_NDS32:
+       return (reloc_type == 0       /* R_XTENSA_NONE.  */
+ 	      || reloc_type == 204  /* R_NDS32_DIFF8.  */
+Index: git/gas/config/tc-microblaze.c
+===================================================================
+--- git.orig/gas/config/tc-microblaze.c
++++ git/gas/config/tc-microblaze.c
+@@ -2201,7 +2201,9 @@ md_apply_fix (fixS *   fixP,
+       /* This fixup has been resolved.  Create a reloc in case the linker
+ 	 moves code around due to relaxing.  */
+       if (fixP->fx_r_type == BFD_RELOC_64_PCREL)
+-	fixP->fx_r_type = BFD_RELOC_MICROBLAZE_64_NONE;
++	    fixP->fx_r_type = BFD_RELOC_MICROBLAZE_64_NONE;
++      else if (fixP->fx_r_type == BFD_RELOC_32)
++        fixP->fx_r_type = BFD_RELOC_MICROBLAZE_32_NONE;
+       else
+ 	fixP->fx_r_type = BFD_RELOC_NONE;
+       fixP->fx_addsy = section_symbol (absolute_section);
+@@ -2426,6 +2428,7 @@ tc_gen_reloc (asection * section ATTRIBU
+   switch (fixp->fx_r_type)
+     {
+     case BFD_RELOC_NONE:
++    case BFD_RELOC_MICROBLAZE_32_NONE: 
+     case BFD_RELOC_MICROBLAZE_64_NONE:
+     case BFD_RELOC_32:
+     case BFD_RELOC_MICROBLAZE_32_LO:
+Index: git/include/elf/microblaze.h
+===================================================================
+--- git.orig/include/elf/microblaze.h
++++ git/include/elf/microblaze.h
+@@ -61,6 +61,7 @@ START_RELOC_NUMBERS (elf_microblaze_relo
+   RELOC_NUMBER (R_MICROBLAZE_TEXTPCREL_64, 30)  /* PC-relative TEXT offset.  */
+   RELOC_NUMBER (R_MICROBLAZE_TEXTREL_64, 31)    /* TEXT Entry offset 64-bit.  */
+   RELOC_NUMBER (R_MICROBLAZE_TEXTREL_32_LO, 32) /* TEXT Entry offset 32-bit.  */
++  RELOC_NUMBER (R_MICROBLAZE_32_NONE, 33)
+ END_RELOC_NUMBERS (R_MICROBLAZE_max)
+ 
+ /* Global base address names.  */
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0006-Fix-bug-in-MicroBlaze-TLSTPREL-Relocation.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0006-Fix-bug-in-MicroBlaze-TLSTPREL-Relocation.patch
new file mode 100644
index 0000000..8d3d538
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0006-Fix-bug-in-MicroBlaze-TLSTPREL-Relocation.patch
@@ -0,0 +1,35 @@
+From ca0336a49c33ccb78962530f2affff8982027e8e Mon Sep 17 00:00:00 2001
+From: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Date: Mon, 28 Aug 2017 19:53:58 -0700
+Subject: [PATCH] Fix bug in MicroBlaze TLSTPREL Relocation
+
+Fixed the problem related to the fixup/relocations TLSTPREL.
+When the fixup is applied the addend is not added at the correct offset
+of the instruction. The offset is hard coded considering its big endian
+and it fails for Little endian. This patch allows support for both
+big & little-endian compilers
+
+Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+Upstream-Status: Pending
+
+---
+ bfd/elf32-microblaze.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/bfd/elf32-microblaze.c b/bfd/elf32-microblaze.c
+index 1dc56f7..d4e53de 100644
+--- a/bfd/elf32-microblaze.c
++++ b/bfd/elf32-microblaze.c
+@@ -1451,9 +1451,9 @@ microblaze_elf_relocate_section (bfd *output_bfd,
+ 	      relocation += addend;
+ 	      relocation -= dtprel_base(info);
+ 	      bfd_put_16 (input_bfd, (relocation >> 16) & 0xffff,
+-			  contents + offset + 2);
++			  contents + offset + endian);
+ 	      bfd_put_16 (input_bfd, relocation & 0xffff,
+-			  contents + offset + 2 + INST_WORD_SIZE);
++			  contents + offset + endian + INST_WORD_SIZE);
+ 	      break;
+ 	    case (int) R_MICROBLAZE_TEXTREL_64:
+ 	    case (int) R_MICROBLAZE_TEXTREL_32_LO:
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0007-Add-MicroBlaze-address-extension-instructions.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0007-Add-MicroBlaze-address-extension-instructions.patch
new file mode 100644
index 0000000..9672c51
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0007-Add-MicroBlaze-address-extension-instructions.patch
@@ -0,0 +1,104 @@
+From 3895968b5c55321d203cadb7630a2baee8699e17 Mon Sep 17 00:00:00 2001
+From: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Date: Mon, 28 Aug 2017 19:53:59 -0700
+Subject: [PATCH] Add MicroBlaze address extension instructions
+
+This patch adds the support of new instructions which are required
+for supporting Address extension feature.
+
+2016-01-18  Nagaraju Mekala  <nagaraju.mekala@xilinx.com>
+
+	* microblaze-opc.h (op_code_struct): Added new instructions
+	* microblaze-opcm.h (microblaze_instr): Added new instructions
+
+Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+Upstream-Status: Pending
+
+---
+ opcodes/microblaze-opc.h  | 13 ++++++++++++-
+ opcodes/microblaze-opcm.h | 10 +++++-----
+ 2 files changed, 17 insertions(+), 6 deletions(-)
+
+diff --git a/opcodes/microblaze-opc.h b/opcodes/microblaze-opc.h
+index 773dc81..4e69f76 100644
+--- a/opcodes/microblaze-opc.h
++++ b/opcodes/microblaze-opc.h
+@@ -102,7 +102,7 @@
+ #define DELAY_SLOT 1
+ #define NO_DELAY_SLOT 0
+ 
+-#define MAX_OPCODES 291
++#define MAX_OPCODES 299
+ 
+ struct op_code_struct
+ {
+@@ -178,8 +178,11 @@ struct op_code_struct
+   {"wdc.ext.clear", INST_TYPE_R1_R2_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000466, OPCODE_MASK_H35B, wdcextclear, special_inst },
+   {"wdc.flush", INST_TYPE_R1_R2_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000074, OPCODE_MASK_H34B, wdcflush, special_inst },
+   {"wdc.ext.flush", INST_TYPE_R1_R2_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x90000476, OPCODE_MASK_H35B, wdcextflush, special_inst },
++  {"wdc.clear.ea", INST_TYPE_R1_R2_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x900000E6, OPCODE_MASK_H34B, wdcclearea, special_inst },
+   {"mts",   INST_TYPE_SPECIAL_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_MTS, 0x9400C000, OPCODE_MASK_H13S, mts, special_inst },
++  {"mtse",  INST_TYPE_SPECIAL_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_MTS, 0x9500C000, OPCODE_MASK_H13S, mtse,special_inst },
+   {"mfs",   INST_TYPE_RD_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_MFS, 0x94008000, OPCODE_MASK_H23S, mfs, special_inst },
++  {"mfse",  INST_TYPE_RD_SPECIAL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_MFS, 0x94088000, OPCODE_MASK_H23S, mfse, special_inst },
+   {"br",    INST_TYPE_R2, INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x98000000, OPCODE_MASK_H124, br, branch_inst },
+   {"brd",   INST_TYPE_R2, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x98100000, OPCODE_MASK_H124, brd, branch_inst },
+   {"brld",  INST_TYPE_RD_R2, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x98140000, OPCODE_MASK_H24, brld, branch_inst },
+@@ -229,18 +232,24 @@ struct op_code_struct
+   {"bgeid", INST_TYPE_R1_IMM, INST_PC_OFFSET, DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBEA00000, OPCODE_MASK_H1, bgeid, branch_inst },
+   {"lbu",   INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC0000000, OPCODE_MASK_H4, lbu, memory_load_inst },
+   {"lbur",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC0000200, OPCODE_MASK_H4, lbur, memory_load_inst },
++  {"lbuea", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC0000080, OPCODE_MASK_H4, lbuea, memory_load_inst },
+   {"lhu",   INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC4000000, OPCODE_MASK_H4, lhu, memory_load_inst },
+   {"lhur",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC4000200, OPCODE_MASK_H4, lhur, memory_load_inst },
++  {"lhuea", INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC4000080, OPCODE_MASK_H4, lhuea, memory_load_inst },
+   {"lw",    INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC8000000, OPCODE_MASK_H4, lw, memory_load_inst },
+   {"lwr",   INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC8000200, OPCODE_MASK_H4, lwr, memory_load_inst },
+   {"lwx",   INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC8000400, OPCODE_MASK_H4, lwx, memory_load_inst },
++  {"lwea",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xC8000080, OPCODE_MASK_H4, lwea, memory_load_inst },
+   {"sb",    INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD0000000, OPCODE_MASK_H4, sb, memory_store_inst },
+   {"sbr",   INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD0000200, OPCODE_MASK_H4, sbr, memory_store_inst },
++  {"sbea",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD0000080, OPCODE_MASK_H4, sbea, memory_store_inst },
+   {"sh",    INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD4000000, OPCODE_MASK_H4, sh, memory_store_inst },
+   {"shr",   INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD4000200, OPCODE_MASK_H4, shr, memory_store_inst },
++  {"shea",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD4000080, OPCODE_MASK_H4, shea, memory_store_inst },
+   {"sw",    INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD8000000, OPCODE_MASK_H4, sw, memory_store_inst },
+   {"swr",   INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD8000200, OPCODE_MASK_H4, swr, memory_store_inst },
+   {"swx",   INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD8000400, OPCODE_MASK_H4, swx, memory_store_inst },
++  {"swea",  INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xD8000080, OPCODE_MASK_H4, swea, memory_store_inst },
+   {"lbui",  INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xE0000000, OPCODE_MASK_H, lbui, memory_load_inst },
+   {"lhui",  INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xE4000000, OPCODE_MASK_H, lhui, memory_load_inst },
+   {"lwi",   INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xE8000000, OPCODE_MASK_H, lwi, memory_load_inst },
+@@ -405,6 +414,8 @@ struct op_code_struct
+   {"clz",       INST_TYPE_RD_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x900000E0, OPCODE_MASK_H34,  clz,       special_inst },
+   {"mbar",      INST_TYPE_IMM5,  INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB8020004, OPCODE_MASK_HN,   mbar,      special_inst },
+   {"sleep",     INST_TYPE_NONE,  INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBA020004, OPCODE_MASK_HN,   invalid_inst, special_inst }, /* translates to mbar 16.  */
++  {"hibernate", INST_TYPE_NONE,  INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xB9020004, OPCODE_MASK_HN,   invalid_inst, special_inst }, /* translates to mbar 8.   */
++  {"suspend",   INST_TYPE_NONE,  INST_PC_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0xBB020004, OPCODE_MASK_HN,   invalid_inst, special_inst }, /* translates to mbar 24.  */
+   {"swapb",     INST_TYPE_RD_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x900001E0, OPCODE_MASK_H4,   swapb,     arithmetic_inst },
+   {"swaph",     INST_TYPE_RD_R1, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x900001E2, OPCODE_MASK_H4,   swaph,     arithmetic_inst },
+   {"", 0, 0, 0, 0, 0, 0, 0, 0},
+diff --git a/opcodes/microblaze-opcm.h b/opcodes/microblaze-opcm.h
+index 7338f6a..c75f10a 100644
+--- a/opcodes/microblaze-opcm.h
++++ b/opcodes/microblaze-opcm.h
+@@ -33,13 +33,13 @@ enum microblaze_instr
+   /* 'or/and/xor' are C++ keywords.  */
+   microblaze_or, microblaze_and, microblaze_xor,
+   andn, pcmpbf, pcmpbc, pcmpeq, pcmpne, sra, src, srl, sext8, sext16,
+-  wic, wdc, wdcclear, wdcextclear, wdcflush, wdcextflush, mts, mfs, mbar, br,
+-  brd, brld, bra, brad, brald, microblaze_brk, beq, beqd, bne, bned, blt,
+-  bltd, ble, bled, bgt, bgtd, bge, bged, ori, andi, xori, andni,
++  wic, wdc, wdcclear, wdcextclear, wdcflush, wdcextflush, wdcclearea, mts, mtse,
++  mfs, mfse, mbar, br, brd, brld, bra, brad, brald, microblaze_brk, beq, beqd,
++  bne, bned, blt, bltd, ble, bled, bgt, bgtd, bge, bged, ori, andi, xori, andni,
+   imm, rtsd, rtid, rtbd, rted, bri, brid, brlid, brai, braid, bralid,
+   brki, beqi, beqid, bnei, bneid, blti, bltid, blei, bleid, bgti,
+-  bgtid, bgei, bgeid, lbu, lbur, lhu, lhur, lw, lwr, lwx, sb, sbr, sh,
+-  shr, sw, swr, swx, lbui, lhui, lwi,
++  bgtid, bgei, bgeid, lbu, lbuea, lbur, lhu, lhuea, lhur, lw, lwea, lwr, lwx,
++  sb, sbea, sbr, sh, shea, shr, sw, swea, swr, swx, lbui, lhui, lwi,
+   sbi, shi, swi, msrset, msrclr, tuqula, fadd, frsub, fmul, fdiv,
+   fcmp_lt, fcmp_eq, fcmp_le, fcmp_gt, fcmp_ne, fcmp_ge, fcmp_un, flt,
+   fint, fsqrt,
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0008-Add-new-MicroBlaze-bit-field-instructions.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0008-Add-new-MicroBlaze-bit-field-instructions.patch
new file mode 100644
index 0000000..0bc0117
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0008-Add-new-MicroBlaze-bit-field-instructions.patch
@@ -0,0 +1,232 @@
+From 5c4dacaae2ba93569c1d37cda9859c57d6649dc0 Mon Sep 17 00:00:00 2001
+From: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Date: Mon, 28 Aug 2017 19:54:01 -0700
+Subject: [PATCH] Add new MicroBlaze bit-field instructions
+
+This patches adds new bsefi and bsifi instructions. BSEFI- The
+instruction shall extract a bit field from a register and place it
+right-adjusted in the destination register. The other bits in the
+destination register shall be set to zero BSIFI- The instruction shall
+insert a right-adjusted bit field from a register at another position in
+the destination register. The rest of the bits in the destination
+register shall be unchanged
+
+Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+Upstream-Status: Pending
+---
+ gas/config/tc-microblaze.c | 71 +++++++++++++++++++++++++++++++++++++++++++++-
+ opcodes/microblaze-dis.c   | 16 +++++++++++
+ opcodes/microblaze-opc.h   | 12 +++++++-
+ opcodes/microblaze-opcm.h  |  6 +++-
+ 4 files changed, 102 insertions(+), 3 deletions(-)
+
+diff --git a/gas/config/tc-microblaze.c b/gas/config/tc-microblaze.c
+index e135547e62..34cb80fac2 100644
+--- a/gas/config/tc-microblaze.c
++++ b/gas/config/tc-microblaze.c
+@@ -909,7 +909,7 @@ md_assemble (char * str)
+   unsigned reg2;
+   unsigned reg3;
+   unsigned isize;
+-  unsigned int immed, temp;
++  unsigned int immed, immed2, temp;
+   expressionS exp;
+   char name[20];
+ 
+@@ -1164,7 +1164,76 @@ md_assemble (char * str)
+       inst |= (reg2 << RA_LOW) & RA_MASK;
+       inst |= (immed << IMM_LOW) & IMM5_MASK;
+       break;
++ case INST_TYPE_RD_R1_IMM5_IMM5:
++      if (strcmp (op_end, ""))
++        op_end = parse_reg (op_end + 1, &reg1);  /* Get rd.  */
++      else
++	{
++          as_fatal (_("Error in statement syntax"));
++          reg1 = 0;
++        }
++      if (strcmp (op_end, ""))
++        op_end = parse_reg (op_end + 1, &reg2);  /* Get r1.  */
++      else
++	{
++          as_fatal (_("Error in statement syntax"));
++          reg2 = 0;
++        }
++
++      /* Check for spl registers.  */
++      if (check_spl_reg (&reg1))
++        as_fatal (_("Cannot use special register with this instruction"));
++      if (check_spl_reg (&reg2))
++        as_fatal (_("Cannot use special register with this instruction"));
+ 
++      /* Width immediate value.  */
++      if (strcmp (op_end, ""))
++        op_end = parse_imm (op_end + 1, &exp, MIN_IMM_WIDTH, MAX_IMM_WIDTH);
++      else
++        as_fatal (_("Error in statement syntax"));
++      if (exp.X_op != O_constant)
++	{
++          as_warn (_("Symbol used as immediate width value for bit field instruction"));
++          immed = 1;
++        }
++      else
++        immed = exp.X_add_number;
++      if (opcode->instr == bsefi && immed > 31)
++        as_fatal (_("Width value must be less than 32"));
++
++      /* Shift immediate value.  */
++      if (strcmp (op_end, ""))
++        op_end = parse_imm (op_end + 1, &exp, MIN_IMM, MAX_IMM);
++      else
++        as_fatal (_("Error in statement syntax"));
++      if (exp.X_op != O_constant)
++	    {
++          as_warn (_("Symbol used as immediate shift value for bit field instruction"));
++          immed2 = 0;
++        }
++      else
++	    {
++          output = frag_more (isize);
++          immed2 = exp.X_add_number;
++	    }
++      if (immed2 != (immed2 % 32))
++	    {
++          as_warn (_("Shift value greater than 32. using <value %% 32>"));
++          immed2 = immed2 % 32;
++        }
++
++      /* Check combined value.  */
++      if (immed + immed2 > 32)
++        as_fatal (_("Width value + shift value must not be greater than 32"));
++
++      inst |= (reg1 << RD_LOW) & RD_MASK;
++      inst |= (reg2 << RA_LOW) & RA_MASK;
++      if (opcode->instr == bsefi)
++        inst |= (immed & IMM5_MASK) << IMM_WIDTH_LOW; /* bsefi */
++      else
++        inst |= ((immed + immed2 - 1) & IMM5_MASK) << IMM_WIDTH_LOW; /* bsifi */
++      inst |= (immed2 << IMM_LOW) & IMM5_MASK;
++      break;
+     case INST_TYPE_R1_R2:
+       if (strcmp (op_end, ""))
+         op_end = parse_reg (op_end + 1, &reg1);  /* Get r1.  */
+diff --git a/opcodes/microblaze-dis.c b/opcodes/microblaze-dis.c
+index 6a174b0eb9..80a47ad2fc 100644
+--- a/opcodes/microblaze-dis.c
++++ b/opcodes/microblaze-dis.c
+@@ -73,6 +73,18 @@ get_field_imm5_mbar (long instr)
+   return(strdup(tmpstr));
+ }
+ 
++static char *
++get_field_imm5width (long instr)
++{
++  char tmpstr[25];
++
++  if (instr & 0x00004000)
++    sprintf (tmpstr, "%d", (short)(((instr & IMM5_WIDTH_MASK) >> IMM_WIDTH_LOW))); /* bsefi */
++ else
++    sprintf (tmpstr, "%d", (short)(((instr & IMM5_WIDTH_MASK) >> IMM_WIDTH_LOW) - ((instr & IMM5_MASK) >> IMM_LOW) + 1)); /* bsifi */
++  return (strdup (tmpstr));
++}
++
+ static char *
+ get_field_rfsl (long instr)
+ {
+@@ -396,6 +408,10 @@ print_insn_microblaze (bfd_vma memaddr, struct disassemble_info * info)
+         /* For mbar 16 or sleep insn.  */
+         case INST_TYPE_NONE:
+           break;
++        /* For bit field insns.  */
++	    case INST_TYPE_RD_R1_IMM5_IMM5:
++          print_func (stream, "\t%s, %s, %s, %s", get_field_rd (inst),get_field_r1(inst),get_field_imm5width (inst), get_field_imm5 (inst));
++	     break;
+ 	/* For tuqula instruction */
+ 	case INST_TYPE_RD:
+ 	  print_func (stream, "\t%s", get_field_rd (inst));
+diff --git a/opcodes/microblaze-opc.h b/opcodes/microblaze-opc.h
+index a64f8362da..afb34989d9 100644
+--- a/opcodes/microblaze-opc.h
++++ b/opcodes/microblaze-opc.h
+@@ -59,6 +59,9 @@
+ /* For mbar.  */
+ #define INST_TYPE_IMM5 20
+ 
++/* For bsefi and bsifi */
++#define INST_TYPE_RD_R1_IMM5_IMM5  21
++
+ #define INST_TYPE_NONE 25
+ 
+ 
+@@ -89,7 +92,9 @@
+ #define OPCODE_MASK_H124  0xFFFF07FF /* High 16, and low 11 bits.  */
+ #define OPCODE_MASK_H1234 0xFFFFFFFF /* All 32 bits.  */
+ #define OPCODE_MASK_H3  0xFC000600  /* High 6 bits and bits 21, 22.  */
++#define OPCODE_MASK_H3B 0xFC00C600  /* High 6 bits and bits 16, 17, 21, 22.  */
+ #define OPCODE_MASK_H32 0xFC00FC00  /* High 6 bits and bit 16-21.  */
++#define OPCODE_MASK_H32B 0xFC00C000  /* High 6 bits and bit 16, 17.  */
+ #define OPCODE_MASK_H34B 0xFC0000FF /* High 6 bits and low 8 bits.  */
+ #define OPCODE_MASK_H35B 0xFC0004FF /* High 6 bits and low 9 bits.  */
+ #define OPCODE_MASK_H34C 0xFC0007E0 /* High 6 bits and bits 21-26.  */
+@@ -102,7 +107,7 @@
+ #define DELAY_SLOT 1
+ #define NO_DELAY_SLOT 0
+ 
+-#define MAX_OPCODES 299
++#define MAX_OPCODES 301
+ 
+ struct op_code_struct
+ {
+@@ -159,6 +164,8 @@ struct op_code_struct
+   {"bslli", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000400, OPCODE_MASK_H3, bslli, barrel_shift_inst },
+   {"bsrai", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000200, OPCODE_MASK_H3, bsrai, barrel_shift_inst },
+   {"bsrli", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000000, OPCODE_MASK_H3, bsrli, barrel_shift_inst },
++  {"bsefi", INST_TYPE_RD_R1_IMM5_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64004000, OPCODE_MASK_H32B, bsefi, barrel_shift_inst },
++  {"bsifi", INST_TYPE_RD_R1_IMM5_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64008000, OPCODE_MASK_H32B, bsifi, barrel_shift_inst },
+   {"or",    INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x80000000, OPCODE_MASK_H4, microblaze_or, logical_inst },
+   {"and",   INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x84000000, OPCODE_MASK_H4, microblaze_and, logical_inst },
+   {"xor",   INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x88000000, OPCODE_MASK_H4, microblaze_xor, logical_inst },
+@@ -438,5 +445,8 @@ char pvr_register_prefix[] = "rpvr";
+ #define MIN_IMM5  ((int) 0x00000000)
+ #define MAX_IMM5  ((int) 0x0000001f)
+ 
++#define MIN_IMM_WIDTH  ((int) 0x00000001)
++#define MAX_IMM_WIDTH  ((int) 0x00000020)
++
+ #endif /* MICROBLAZE_OPC */
+ 
+diff --git a/opcodes/microblaze-opcm.h b/opcodes/microblaze-opcm.h
+index 21a3dc8d76..dd6be7f65c 100644
+--- a/opcodes/microblaze-opcm.h
++++ b/opcodes/microblaze-opcm.h
+@@ -29,7 +29,7 @@ enum microblaze_instr
+   addi, rsubi, addic, rsubic, addik, rsubik, addikc, rsubikc, mul,
+   mulh, mulhu, mulhsu,swapb,swaph,
+   idiv, idivu, bsll, bsra, bsrl, get, put, nget, nput, cget, cput,
+-  ncget, ncput, muli, bslli, bsrai, bsrli, mului,
++  ncget, ncput, muli, bslli, bsrai, bsrli, bsefi, bsifi, mului,
+   /* 'or/and/xor' are C++ keywords.  */
+   microblaze_or, microblaze_and, microblaze_xor,
+   andn, pcmpbf, pcmpbc, pcmpeq, pcmpne, sra, src, srl, sext8, sext16,
+@@ -129,6 +129,7 @@ enum microblaze_instr_type
+ #define RB_LOW  11 /* Low bit for RB.  */
+ #define IMM_LOW  0 /* Low bit for immediate.  */
+ #define IMM_MBAR 21 /* low bit for mbar instruction.  */
++#define IMM_WIDTH_LOW 6 /* Low bit for immediate width */
+ 
+ #define RD_MASK 0x03E00000
+ #define RA_MASK 0x001F0000
+@@ -141,6 +142,9 @@ enum microblaze_instr_type
+ /* Imm mask for mbar.  */
+ #define IMM5_MBAR_MASK 0x03E00000
+ 
++/* Imm mask for extract/insert width. */
++#define IMM5_WIDTH_MASK 0x000007C0
++
+ /* FSL imm mask for get, put instructions.  */
+ #define  RFSL_MASK 0x000000F
+ 
+-- 
+2.15.0
+
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0009-Fixing-MicroBlaze-IMM-bug.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0009-Fixing-MicroBlaze-IMM-bug.patch
new file mode 100644
index 0000000..bb7e91c
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0009-Fixing-MicroBlaze-IMM-bug.patch
@@ -0,0 +1,29 @@
+From f649406ccaea992f3931e0d9ca9fbd6efb0c553b Mon Sep 17 00:00:00 2001
+From: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Date: Mon, 28 Aug 2017 19:54:02 -0700
+Subject: [PATCH] Fixing MicroBlaze IMM bug
+
+Fixing the imm bug. with relax option imm -1 is also getting removed this is corrected now.
+
+Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+Upstream-Status: Pending
+
+---
+ bfd/elf32-microblaze.c | 3 +--
+ 1 file changed, 1 insertion(+), 2 deletions(-)
+
+diff --git a/bfd/elf32-microblaze.c b/bfd/elf32-microblaze.c
+index a94799f..74b00d2 100644
+--- a/bfd/elf32-microblaze.c
++++ b/bfd/elf32-microblaze.c
+@@ -1789,8 +1789,7 @@ microblaze_elf_relax_section (bfd *abfd,
+       else
+ 	symval += irel->r_addend;
+ 
+-      if ((symval & 0xffff8000) == 0
+-	  || (symval & 0xffff8000) == 0xffff8000)
++      if ((symval & 0xffff8000) == 0)
+ 	{
+ 	  /* We can delete this instruction.  */
+ 	  sec->relax[sec->relax_count].addr = irel->r_offset;
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0010-Fixed-bug-in-GCC-so-that-it-will-support-.long-0U-an.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0010-Fixed-bug-in-GCC-so-that-it-will-support-.long-0U-an.patch
new file mode 100644
index 0000000..077343e
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0010-Fixed-bug-in-GCC-so-that-it-will-support-.long-0U-an.patch
@@ -0,0 +1,34 @@
+From e1bacaa7c1aa387f167afff74876c5acdffc39d9 Mon Sep 17 00:00:00 2001
+From: Mahesh Bodapati <mbodapat@xilinx.com>
+Date: Wed, 15 Nov 2017 17:45:35 -0800
+Subject: [PATCH] Fixed bug in GCC so that it will support .long 0U and .long
+ 0u
+
+Signed-off-by: Mahesh Bodapati <mbodapat@xilinx.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+Upstream-Status: Pending
+
+---
+ gas/expr.c | 9 +++++++++
+ 1 file changed, 9 insertions(+)
+
+diff --git a/gas/expr.c b/gas/expr.c
+index 3e28af6..0b7cc76 100644
+--- a/gas/expr.c
++++ b/gas/expr.c
+@@ -810,6 +810,15 @@ operand (expressionS *expressionP, enum expr_mode mode)
+ 	      break;
+ 	    }
+ 	}
++      if ((*input_line_pointer == 'U') || (*input_line_pointer == 'u'))
++      {
++      input_line_pointer--;
++
++      integer_constant ((NUMBERS_WITH_SUFFIX || flag_m68k_mri)
++                        ? 0 : 10,
++                        expressionP);
++      break;
++      }
+       c = *input_line_pointer;
+       switch (c)
+ 	{
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0011-Fixing-MicroBlaze-constant-range-check-issue.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0011-Fixing-MicroBlaze-constant-range-check-issue.patch
new file mode 100644
index 0000000..244a7ad
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0011-Fixing-MicroBlaze-constant-range-check-issue.patch
@@ -0,0 +1,28 @@
+From 9393a3e346d2ccbb86761117260c1dd89070a507 Mon Sep 17 00:00:00 2001
+From: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Date: Wed, 15 Nov 2017 17:45:34 -0800
+Subject: [PATCH] Fixing MicroBlaze constant range check issue
+
+Sample error: not in range ffffffff80000000..7fffffff, not ffffffff70000000
+
+Signed-off-by: Nagaraju Mekala <nagaraju.mekala@xilinx.com>
+Signed-off-by: Manjukumar Matha <manjukumar.harthikote-matha@xilinx.com>
+Upstream-Status: Pending
+
+---
+ gas/config/tc-microblaze.c | 2 +-
+ 1 file changed, 1 insertion(+), 1 deletion(-)
+
+diff --git a/gas/config/tc-microblaze.c b/gas/config/tc-microblaze.c
+index 21a5a0c..c614556 100644
+--- a/gas/config/tc-microblaze.c
++++ b/gas/config/tc-microblaze.c
+@@ -749,7 +749,7 @@ parse_imm (char * s, expressionS * e, offsetT min, offsetT max)
+       if ((e->X_add_number >> 31) == 1)
+ 	e->X_add_number |= -((addressT) (1U << 31));
+ 
+-      if (e->X_add_number < min || e->X_add_number > max)
++      if ((int)e->X_add_number < min || (int)e->X_add_number > max)
+ 	{
+ 	  as_fatal (_("operand must be absolute in range %lx..%lx, not %lx"),
+ 		    (long) min, (long) max, (long) e->X_add_number);
diff --git a/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0012-MicroBlaze-fix-mask-for-barrel-shift-instructions.patch b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0012-MicroBlaze-fix-mask-for-barrel-shift-instructions.patch
new file mode 100644
index 0000000..e340c50
--- /dev/null
+++ b/meta-xilinx/meta-xilinx-bsp/recipes-microblaze/binutils/binutils-2.31/0012-MicroBlaze-fix-mask-for-barrel-shift-instructions.patch
@@ -0,0 +1,36 @@
+From 732b5a44a0a032da5ebb775b5df2ee2a36af988f Mon Sep 17 00:00:00 2001
+From: Nathan Rossi <nathan@nathanrossi.com>
+Date: Sun, 5 Nov 2017 22:17:39 +1000
+Subject: [PATCH] MicroBlaze fix mask for barrel shift instructions
+
+As of v10.0 the bsi (bslli/bsrai/bsrli/bsefi/bsifi) instructions have
+bits 16 and 17 defined as 'Insert' and 'Extract' respectively to support
+bit field insert/extract operations. For the bslli/bsrai/bsrli
+instructions these bits must be 0, as such update the opcode mask so
+that the bslli/bsrai/bsrli instructions do not also match the bsefi and
+bsifi instructions.
+
+Signed-off-by: Nathan Rossi <nathan@nathanrossi.com>
+Upstream-Status: Pending
+
+---
+ opcodes/microblaze-opc.h | 6 +++---
+ 1 file changed, 3 insertions(+), 3 deletions(-)
+
+diff --git a/opcodes/microblaze-opc.h b/opcodes/microblaze-opc.h
+index 4bc400a..9482d81 100644
+--- a/opcodes/microblaze-opc.h
++++ b/opcodes/microblaze-opc.h
+@@ -161,9 +161,9 @@ struct op_code_struct
+   {"ncget", INST_TYPE_RD_RFSL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x6C006000, OPCODE_MASK_H32, ncget, anyware_inst },
+   {"ncput", INST_TYPE_R1_RFSL, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x6C00E000, OPCODE_MASK_H32, ncput, anyware_inst },
+   {"muli",  INST_TYPE_RD_R1_IMM, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x60000000, OPCODE_MASK_H, muli, mult_inst },
+-  {"bslli", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000400, OPCODE_MASK_H3, bslli, barrel_shift_inst },
+-  {"bsrai", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000200, OPCODE_MASK_H3, bsrai, barrel_shift_inst },
+-  {"bsrli", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000000, OPCODE_MASK_H3, bsrli, barrel_shift_inst },
++  {"bslli", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000400, OPCODE_MASK_H3B, bslli, barrel_shift_inst },
++  {"bsrai", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000200, OPCODE_MASK_H3B, bsrai, barrel_shift_inst },
++  {"bsrli", INST_TYPE_RD_R1_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64000000, OPCODE_MASK_H3B, bsrli, barrel_shift_inst },
+   {"bsefi", INST_TYPE_RD_R1_IMM5_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64004000, OPCODE_MASK_H32B, bsefi, barrel_shift_inst },
+   {"bsifi", INST_TYPE_RD_R1_IMM5_IMM5, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x64008000, OPCODE_MASK_H32B, bsifi, barrel_shift_inst },
+   {"or",    INST_TYPE_RD_R1_R2, INST_NO_OFFSET, NO_DELAY_SLOT, IMMVAL_MASK_NON_SPECIAL, 0x80000000, OPCODE_MASK_H4, microblaze_or, logical_inst },