new file mode 100644
--- /dev/null
+++ b/packages/redboot/current/src/mfill.c
@@ -0,0 +1,113 @@
+//==========================================================================
+//
+//      mfill.c
+//
+//      RedBoot memory fill (mfill) routine
+//
+//==========================================================================
+//####ECOSGPLCOPYRIGHTBEGIN####
+// -------------------------------------------
+// This file is part of eCos, the Embedded Configurable Operating System.
+// Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
+// Copyright (C) 2002 Gary Thomas
+//
+// eCos is free software; you can redistribute it and/or modify it under
+// the terms of the GNU General Public License as published by the Free
+// Software Foundation; either version 2 or (at your option) any later version.
+//
+// eCos 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 eCos; if not, write to the Free Software Foundation, Inc.,
+// 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
+//
+// As a special exception, if other files instantiate templates or use macros
+// or inline functions from this file, or you compile this file and link it
+// with other works to produce a work based on this file, this file does not
+// by itself cause the resulting work to be covered by the GNU General Public
+// License. However the source code for this file must still be made available
+// in accordance with section (3) of the GNU General Public License.
+//
+// This exception does not invalidate any other reasons why a work based on
+// this file might be covered by the GNU General Public License.
+//
+// Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
+// at http://sources.redhat.com/ecos/ecos-license/
+// -------------------------------------------
+//####ECOSGPLCOPYRIGHTEND####
+//==========================================================================
+//#####DESCRIPTIONBEGIN####
+//
+// Author(s):    gthomas
+// Contributors: gthomas
+// Date:         2002-08-06
+// Purpose:      
+// Description:  
+//              
+// This code is part of RedBoot (tm).
+//
+//####DESCRIPTIONEND####
+//
+//==========================================================================
+
+#include <redboot.h>
+
+RedBoot_cmd("mfill", 
+            "Fill a block of memory with a pattern",
+            "-b <location> -l <length> -p <pattern> [-1|-2|-4]",
+            do_mfill
+    );
+
+void
+do_mfill(int argc, char *argv[])
+{
+    // Fill a region of memory with a pattern
+    struct option_info opts[6];
+    unsigned long base, pat;
+    long len;
+    bool base_set, len_set, pat_set;
+    bool set_32bit, set_16bit, set_8bit;
+
+    init_opts(&opts[0], 'b', true, OPTION_ARG_TYPE_NUM, 
+              (void **)&base, (bool *)&base_set, "base address");
+    init_opts(&opts[1], 'l', true, OPTION_ARG_TYPE_NUM, 
+              (void **)&len, (bool *)&len_set, "length");
+    init_opts(&opts[2], 'p', true, OPTION_ARG_TYPE_NUM, 
+              (void **)&pat, (bool *)&pat_set, "pattern");
+    init_opts(&opts[3], '4', false, OPTION_ARG_TYPE_FLG,
+              (void *)&set_32bit, (bool *)0, "fill 32 bit units");
+    init_opts(&opts[4], '2', false, OPTION_ARG_TYPE_FLG,
+              (void **)&set_16bit, (bool *)0, "fill 16 bit units");
+    init_opts(&opts[5], '1', false, OPTION_ARG_TYPE_FLG,
+              (void **)&set_8bit, (bool *)0, "fill 8 bit units");
+    if (!scan_opts(argc, argv, 1, opts, 6, 0, 0, "")) {
+        return;
+    }
+    if (!base_set || !len_set) {
+        diag_printf("usage: mfill -b <addr> -l <length> [-p <pattern>] [-1|-2|-4]\n");
+        return;
+    }
+    if (!pat_set) {
+        pat = 0;
+    }
+    // No checks here    
+    if (set_8bit) {
+        // Fill 8 bits at a time
+        while ((len -= sizeof(cyg_uint8)) >= 0) {
+            *((cyg_uint8 *)base)++ = (cyg_uint8)pat;
+        }
+    } else if (set_16bit) {
+        // Fill 16 bits at a time
+        while ((len -= sizeof(cyg_uint16)) >= 0) {
+            *((cyg_uint16 *)base)++ = (cyg_uint16)pat;
+        }
+    } else {
+        // Default - 32 bits
+        while ((len -= sizeof(cyg_uint32)) >= 0) {
+            *((cyg_uint32 *)base)++ = (cyg_uint32)pat;
+        }
+    }
+}