diff --git a/.gitignore b/.gitignore
index a2e0a1518d..92d6e9c049 100644
--- a/.gitignore
+++ b/.gitignore
@@ -11,3 +11,11 @@ __pycache__/
 proto.gv*
 .DS_Store
 crypto/tests/libtrezor-crypto.so.dSYM/
+/zephyr/.west/
+/zephyr/bootloader/
+/zephyr/modules/
+/zephyr/nrf/
+/zephyr/nrfxlib/
+/zephyr/test/
+/zephyr/tools/
+/zephyr/zephyr/
diff --git a/.pylintrc b/.pylintrc
index cefee09d88..3278d83224 100644
--- a/.pylintrc
+++ b/.pylintrc
@@ -8,6 +8,7 @@ ignore-paths=
     crypto,
     legacy,
     storage,
+    zephyr,
 fail-under=10.0
 jobs=0
 load-plugins=trezor_pylint_plugin
diff --git a/.yamllint.yml b/.yamllint.yml
index db57aa9911..608760af8b 100644
--- a/.yamllint.yml
+++ b/.yamllint.yml
@@ -5,6 +5,7 @@ ignore: |
   vendor/
   /common/defs/ethereum/chains/
   /common/defs/ethereum/tokens/
+  /zephyr/
 
 rules:
   # fix for truthy warning on github action files
diff --git a/tools/style.c.include b/tools/style.c.include
index 276419c797..1daf234e24 100644
--- a/tools/style.c.include
+++ b/tools/style.c.include
@@ -3,3 +3,4 @@
 ^\./crypto/
 ^\./legacy/
 ^\./storage/
+^\./zephyr/workspace/
diff --git a/zephyr/workspace b/zephyr/workspace
new file mode 160000
index 0000000000..e25bf99924
--- /dev/null
+++ b/zephyr/workspace
@@ -0,0 +1 @@
+Subproject commit e25bf999240c89edb9604cc5d8141ed8e2e57ed3