commit 99b7f1174237738a645c395b6b174cea1b5c5b92
author Tom Wai-Hong Tam <waihong@chromium.org> Wed Feb 06 09:10:10 2013 +0800
committer ChromeBot <chrome-bot@google.com> Wed Feb 06 00:56:49 2013 -0800
tree 3addaef10e9859167d728e4a67d45185ef88edd0
parent 9a6f64de2cda21ad3f173c13298a53dcb5525cc3

cros_bundle_firmware: Support the z machine parameter for u-boot compression

SPL u-boot may load a compressed u-boot. A new machine parameter 'z' tells
SPL u-boot what type of compression the u-boot uses. The compression type
is configured in the FDT.

BUG=chromium-os:37724
TEST=manual
Use a FDT in which RO u-boot flashmap has the property: compress = "lzo".
Run cros_bundle_firmware -v3 and check the following output:
  Compression type: 0x1

Change-Id: I7d1977fb049b19cd2dd529f4e9da65a2785a5ba7
Reviewed-on: https://gerrit.chromium.org/gerrit/42692
Reviewed-by: Simon Glass <sjg@chromium.org>
Commit-Queue: Tom Wai-Hong Tam <waihong@chromium.org>
Tested-by: Tom Wai-Hong Tam <waihong@chromium.org>

host/lib/bundle_firmware.py

diff --git a/host/lib/bundle_firmware.py b/host/lib/bundle_firmware.py
index 2a0cfec..42720f9 100644
--- a/host/lib/bundle_firmware.py
+++ b/host/lib/bundle_firmware.py
@@ -828,6 +828,13 @@
         else:
           raise CmdError("Invalid boot source '%s'" % self.spl_source)
         self._out.Info('  Boot source: %#0x' % value)
+      elif param == 'z':
+        compress = fdt.GetString('/flash/ro-boot', 'compress', 'none')
+        compress_types = ['none', 'lzo']
+        if not compress in compress_types:
+          raise CmdError("Unknown compression type '%s'" % compress)
+        value = compress_types.index(compress)
+        self._out.Info('  Compression type: %#0x' % value)
       else:
         self._out.Warning("Unknown machine parameter type '%s'" % param)
         self._out.Info('  Unknown value: %#0x' % value)