ARM: convert build of appended dtb zImage to list of dtbs

Allow CONFIG_BUILD_ARM_APPENDED_DTB_IMAGE_NAMES to specify
a space separated list of dtbs to append to the zImage,
and name the resulting file zImage-dtb

Change-Id: I36d9108a2349bdbb373e95076dcb1417d8c7dce6
Signed-off-by: Colin Cross <ccross@android.com>
Git-commit: 6a3b63009b2fe3b025a88e8a0a5bcea145dda131
Git-repo: https://android.googlesource.com/kernel/common/
[mittals@codeaurora.org: resolve trivial merge conflicts]
Signed-off-by: Shashank Mittal <mittals@codeaurora.org>
Reviewed-on: http://gerrit.pcs.mot.com/589625
Submit-Approved: Jira Key <jirakey@motorola.com>
Tested-by: Jira Key <jirakey@motorola.com>
SLTApproved: Slta Waiver <sltawvr@motorola.com>
Reviewed-by: Douglas Zobel <dzobel1@motorola.com>

1 files changed, 37 insertions, 0 deletions

diff --git a/scripts/dtcat.py b/scripts/dtcat.py
new file mode 100755
index 00000000000..add986245e2
--- /dev/null
+++ b/scripts/dtcat.py
@@ -0,0 +1,37 @@
+#!/usr/bin/python
+#
+# Copyright (C) 2013 Motorola, LLC.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License version 2 as
+# published by the Free Software Foundation.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, write to the Free Software
+# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+# 02111-1307, USA
+#
+# generate a 64 bit aligned concatenation of the files
+# given based on:
+# padding = (align - (offset mod align)) mod align
+import os, sys
+
+
+def padding(v):
+    align = 8
+    return (align - (v % align)) % align
+
+for f in sys.argv[1:]:
+    s = os.stat(f).st_size
+    print >> sys.stderr, f, 'size', s, 'padding', padding(s)
+    with open(f, 'rb') as fp:
+        data = fp.read()
+        sys.stdout.write(data)
+        for i in range(padding(s)):
+            sys.stdout.write(B'0')
+