diff --git a/port/stm32-l053r8-em9304/btstack_config.h b/port/stm32-l053r8-em9304/btstack_config.h
index 20183e14d..0acc5e481 100644
--- a/port/stm32-l053r8-em9304/btstack_config.h
+++ b/port/stm32-l053r8-em9304/btstack_config.h
@@ -7,6 +7,7 @@
 
 // Port related features
 #define HAVE_EMBEDDED_TIME_MS
+// #define HAVE_EM9304_PATCH_CONTAINER
 
 // BTstack features that can be enabled
 #define ENABLE_BLE
@@ -35,4 +36,4 @@
 #define MAX_NR_SERVICE_RECORD_ITEMS 1
 #define MAX_NR_LE_DEVICE_DB_ENTRIES 1
 
-#endif
\ No newline at end of file
+#endif
diff --git a/port/stm32-l053r8-em9304/cubemx-l053r8-em9304/Makefile b/port/stm32-l053r8-em9304/cubemx-l053r8-em9304/Makefile
index 2276f419d..6c6ead0a3 100644
--- a/port/stm32-l053r8-em9304/cubemx-l053r8-em9304/Makefile
+++ b/port/stm32-l053r8-em9304/cubemx-l053r8-em9304/Makefile
@@ -51,6 +51,7 @@ VPATH += ${BTSTACK_ROOT}/src/classic
 VPATH += ${BTSTACK_ROOT}/platform/embedded
 VPATH += ${BTSTACK_ROOT}/example
 VPATH += ${BTSTACK_ROOT}/3rd-party/micro-ecc
+VPATH += ${BTSTACK_ROOT}/chipset/em9301
 
 ######################################
 # source
@@ -86,6 +87,7 @@ Src/stm32l0xx_it.c \
 	att_dispatch.c \
 	att_server.c \
 	battery_service_server.c \
+	btstack_chipset_em9301.c \
 	btstack_linked_list.c \
 	btstack_memory.c \
 	btstack_memory_pool.c \
@@ -106,6 +108,7 @@ Src/stm32l0xx_it.c \
 	le_device_db_memory.c \
 	sm.c \
 	uECC.c \
+	0000000_META_hci_patches_v5_iram.c \
 
 # ASM sources
 ASM_SOURCES =  \
diff --git a/port/stm32-l053r8-em9304/port.c b/port/stm32-l053r8-em9304/port.c
index aabac55fc..a27d0cda8 100644
--- a/port/stm32-l053r8-em9304/port.c
+++ b/port/stm32-l053r8-em9304/port.c
@@ -478,6 +478,7 @@ void port_main(void){
 
     // init HCI
     hci_init(hci_transport_h4_instance(btstack_uart_block_embedded_instance()), &config);
+    hci_set_chipset(btstack_chipset_em9301_instance());
 
 #if 0
     // setup Link Key DB
@@ -505,4 +506,4 @@ void port_main(void){
 
     // go
     btstack_run_loop_execute();
-}
\ No newline at end of file
+}