diff --git a/tools/buildman/README b/tools/buildman/README
index e870d54..8ecdd8f 100644
--- a/tools/buildman/README
+++ b/tools/buildman/README
@@ -348,7 +348,7 @@ At the time of writing, U-Boot has these architectures:
    arc, arm, avr32, blackfin, m68k, microblaze, mips, nds32, nios2, openrisc
    powerpc, sandbox, sh, sparc, x86
 
-Of these, only arc, microblaze and nds32 are not available at kernel.org..
+Of these, only arc and nds32 are not available at kernel.org..
 
 
 How to run it
diff --git a/tools/buildman/test.py b/tools/buildman/test.py
index 7642d94..d8f3c81 100644
--- a/tools/buildman/test.py
+++ b/tools/buildman/test.py
@@ -411,7 +411,7 @@ class TestBuild(unittest.TestCase):
 
     def testToolchainDownload(self):
         """Test that we can download toolchains"""
-        self.assertEqual('https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.6.3/x86_64-gcc-4.6.3-nolibc_arm-unknown-linux-gnueabi.tar.xz',
+        self.assertEqual('https://www.kernel.org/pub/tools/crosstool/files/bin/x86_64/4.9.0/x86_64-gcc-4.9.0-nolibc_arm-unknown-linux-gnueabi.tar.xz',
             self.toolchains.LocateArchUrl('arm'))
 
 
diff --git a/tools/buildman/toolchain.py b/tools/buildman/toolchain.py
index 051da11..e33e105 100644
--- a/tools/buildman/toolchain.py
+++ b/tools/buildman/toolchain.py
@@ -339,7 +339,7 @@ class Toolchains:
         """
         arch = command.OutputOneLine('uname', '-m')
         base = 'https://www.kernel.org/pub/tools/crosstool/files/bin'
-        versions = ['4.6.3', '4.6.2', '4.5.1', '4.2.4']
+        versions = ['4.9.0', '4.6.3', '4.6.2', '4.5.1', '4.2.4']
         links = []
         for version in versions:
             url = '%s/%s/%s/' % (base, arch, version)
diff --git a/tools/patman/README b/tools/patman/README
index 7d039e8..27ec90a 100644
--- a/tools/patman/README
+++ b/tools/patman/README
@@ -154,7 +154,11 @@ Series-version: n
 
 Series-prefix: prefix
 	Sets the subject prefix. Normally empty but it can be RFC for
-	RFC patches, or RESEND if you are being ignored.
+	RFC patches, or RESEND if you are being ignored. The patch subject
+	is like [RFC PATCH] or [RESEND PATCH].
+	In the meantime, git format.subjectprefix option will be added as
+	well. If your format.subjectprefix is set to InternalProject, then
+	the patch shows like: [InternalProject][RFC/RESEND PATCH]
 
 Series-name: name
 	Sets the name of the series. You don't need to have a name, and
diff --git a/tools/patman/gitutil.py b/tools/patman/gitutil.py
index 4c2c35b..9e739d8 100644
--- a/tools/patman/gitutil.py
+++ b/tools/patman/gitutil.py
@@ -545,6 +545,17 @@ def GetDefaultUserEmail():
     uemail = command.OutputOneLine('git', 'config', '--global', 'user.email')
     return uemail
 
+def GetDefaultSubjectPrefix():
+    """Gets the format.subjectprefix from local .git/config file.
+
+    Returns:
+        Subject prefix found in local .git/config file, or None if none
+    """
+    sub_prefix = command.OutputOneLine('git', 'config', 'format.subjectprefix',
+                 raise_on_error=False)
+
+    return sub_prefix
+
 def Setup():
     """Set up git utils, by reading the alias files."""
     # Check for a git alias file also
diff --git a/tools/patman/series.py b/tools/patman/series.py
index 60ebc76..a17a7d1 100644
--- a/tools/patman/series.py
+++ b/tools/patman/series.py
@@ -254,6 +254,12 @@ class Series(dict):
         Return:
             Patch string, like 'RFC PATCH v5' or just 'PATCH'
         """
+        git_prefix = gitutil.GetDefaultSubjectPrefix()
+        if git_prefix:
+	    git_prefix = '%s][' % git_prefix
+        else:
+            git_prefix = ''
+
         version = ''
         if self.get('version'):
             version = ' v%s' % self['version']
@@ -262,4 +268,4 @@ class Series(dict):
         prefix = ''
         if self.get('prefix'):
             prefix = '%s ' % self['prefix']
-        return '%sPATCH%s' % (prefix, version)
+        return '%s%sPATCH%s' % (git_prefix, prefix, version)