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diff --git a/scripts/lib/wic/plugins/source/empty.py b/scripts/lib/wic/plugins/source/empty.py
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+#
+# Copyright OpenEmbedded Contributors
+#
+# SPDX-License-Identifier: MIT
+#
+
+# The empty wic plugin is used to create unformatted empty partitions for wic
+# images.
+# To use it you must pass "empty" as argument for the "--source" parameter in
+# the wks file. For example:
+# part foo --source empty --ondisk sda --size="1024" --align 1024
+#
+# The plugin supports writing zeros to the start of the
+# partition. This is useful to overwrite old content like
+# filesystem signatures which may be re-recognized otherwise.
+# This feature can be enabled with
+# '--sourceparams="[fill|size=<N>[S|s|K|k|M|G]][,][bs=<N>[S|s|K|k|M|G]]"'
+# Conflicting or missing options throw errors.
+
+import logging
+import os
+
+from wic import WicError
+from wic.ksparser import sizetype
+from wic.pluginbase import SourcePlugin
+
+logger = logging.getLogger('wic')
+
+class EmptyPartitionPlugin(SourcePlugin):
+ """
+ Populate unformatted empty partition.
+
+ The following sourceparams are supported:
+ - fill
+ Fill the entire partition with zeros. Requires '--fixed-size' option
+ to be set.
+ - size=<N>[S|s|K|k|M|G]
+ Set the first N bytes of the partition to zero. Default unit is 'K'.
+ - bs=<N>[S|s|K|k|M|G]
+ Write at most N bytes at a time during source file creation.
+ Defaults to '1M'. Default unit is 'K'.
+ """
+
+ name = 'empty'
+
+ @classmethod
+ def do_prepare_partition(cls, part, source_params, cr, cr_workdir,
+ oe_builddir, bootimg_dir, kernel_dir,
+ rootfs_dir, native_sysroot):
+ """
+ Called to do the actual content population for a partition i.e. it
+ 'prepares' the partition to be incorporated into the image.
+ """
+ get_byte_count = sizetype('K', True)
+ size = 0
+
+ if 'fill' in source_params and 'size' in source_params:
+ raise WicError("Conflicting source parameters 'fill' and 'size' specified, exiting.")
+
+ # Set the size of the zeros to be written to the partition
+ if 'fill' in source_params:
+ if part.fixed_size == 0:
+ raise WicError("Source parameter 'fill' only works with the '--fixed-size' option, exiting.")
+ size = get_byte_count(part.fixed_size)
+ elif 'size' in source_params:
+ size = get_byte_count(source_params['size'])
+
+ if size == 0:
+ # Nothing to do, create empty partition
+ return
+
+ if 'bs' in source_params:
+ bs = get_byte_count(source_params['bs'])
+ else:
+ bs = get_byte_count('1M')
+
+ # Create a binary file of the requested size filled with zeros
+ source_file = os.path.join(cr_workdir, 'empty-plugin-zeros%s.bin' % part.lineno)
+ if not os.path.exists(os.path.dirname(source_file)):
+ os.makedirs(os.path.dirname(source_file))
+
+ quotient, remainder = divmod(size, bs)
+ with open(source_file, 'wb') as file:
+ for _ in range(quotient):
+ file.write(bytearray(bs))
+ file.write(bytearray(remainder))
+
+ part.size = (size + 1024 - 1) // 1024 # size in KB rounded up
+ part.source_file = source_file