diff --git a/litex/build/lattice/trellis.py b/litex/build/lattice/trellis.py
index 38e4cdaeb..34c8e6db4 100644
--- a/litex/build/lattice/trellis.py
+++ b/litex/build/lattice/trellis.py
@@ -118,10 +118,10 @@ _build_template = [
     "yosys -l {build_name}.rpt {build_name}.ys",
     "nextpnr-ecp5 --json {build_name}.json --lpf {build_name}.lpf --textcfg {build_name}.config  \
     --{architecture} --package {package} --speed {speed_grade} {timefailarg} {ignoreloops} --seed {seed}",
-    "ecppack {build_name}.config --svf {build_name}.svf --bit {build_name}.bit"
+    "ecppack {build_name}.config --svf {build_name}.svf --bit {build_name}.bit --bootaddr {bootaddr}"
 ]
 
-def _build_script(source, build_template, build_name, architecture, package, speed_grade, timingstrict, ignoreloops, seed):
+def _build_script(source, build_template, build_name, architecture, package, speed_grade, timingstrict, ignoreloops, bootaddr, seed):
     if sys.platform in ("win32", "cygwin"):
         script_ext = ".bat"
         script_contents = "@echo off\nrem Autogenerated by LiteX / git: " + tools.get_litex_git_revision() + "\n\n"
@@ -134,14 +134,15 @@ def _build_script(source, build_template, build_name, architecture, package, spe
     for s in build_template:
         s_fail = s + "{fail_stmt}\n"  # Required so Windows scripts fail early.
         script_contents += s_fail.format(
-            build_name   = build_name,
-            architecture = architecture,
-            package      = package,
-            speed_grade  = speed_grade,
-            timefailarg  = "--timing-allow-fail" if not timingstrict else "",
-            ignoreloops  = "--ignore-loops" if ignoreloops else "",
-            fail_stmt    = fail_stmt,
-            seed         = seed)
+            build_name      = build_name,
+            architecture    = architecture,
+            package         = package,
+            speed_grade     = speed_grade,
+            timefailarg     = "--timing-allow-fail" if not timingstrict else "",
+            ignoreloops     = "--ignore-loops" if ignoreloops else "",
+            bootaddr        = bootaddr,
+            fail_stmt       = fail_stmt,
+            seed            = seed)
 
     script_file = "build_" + build_name + script_ext
     tools.write_to_file(script_file, script_contents, force_unix=False)
@@ -187,6 +188,7 @@ class LatticeTrellisToolchain:
         nowidelut      = False,
         timingstrict   = False,
         ignoreloops    = False,
+        bootaddr       = 0,
         seed           = 1,
         **kwargs):
 
@@ -219,8 +221,7 @@ class LatticeTrellisToolchain:
 
         # Generate build script
         script = _build_script(False, self.build_template, build_name, architecture, package,
-            speed_grade, timingstrict, ignoreloops, seed)
-
+                               speed_grade, timingstrict, ignoreloops, bootaddr, seed)
         # Run
         if run:
             _run_script(script)
@@ -246,6 +247,8 @@ def trellis_args(parser):
                         help="fail if timing not met, i.e., do NOT pass '--timing-allow-fail' to nextpnr")
     parser.add_argument("--nextpnr-ignoreloops", action="store_true",
                         help="ignore combinational loops in timing analysis, i.e. pass '--ignore-loops' to nextpnr")
+    parser.add_argument("--ecppack-bootaddr", default=0,
+                        help="Set boot address for next image, i.e. pass '--bootaddr xxx' to ecppack")
     parser.add_argument("--nextpnr-seed", default=1, type=int,
                         help="seed to pass to nextpnr")
 
@@ -254,5 +257,6 @@ def trellis_argdict(args):
         "nowidelut":    args.yosys_nowidelut,
         "timingstrict": args.nextpnr_timingstrict,
         "ignoreloops":  args.nextpnr_ignoreloops,
+        "bootaddr":     args.ecppack_bootaddr,
         "seed":         args.nextpnr_seed,
     }