diff --git a/core/SConscript.bootloader_emu b/core/SConscript.bootloader_emu
index 4df11a6d10..af36760f74 100644
--- a/core/SConscript.bootloader_emu
+++ b/core/SConscript.bootloader_emu
@@ -136,6 +136,7 @@ if TREZOR_MODEL in ('R', ):
     ]
     SOURCE_TREZORHAL += [
         'embed/trezorhal/unix/secret.c',
+        'embed/trezorhal/unix/optiga_hal.c',
     ]
 
 SOURCE_UNIX = [
diff --git a/core/embed/bootloader/main.c b/core/embed/bootloader/main.c
index 95cb79e598..fd6a6e5d45 100644
--- a/core/embed/bootloader/main.c
+++ b/core/embed/bootloader/main.c
@@ -35,6 +35,9 @@
 #ifdef USE_I2C
 #include "i2c.h"
 #endif
+#ifdef USE_OPTIGA
+#include "optiga_hal.h"
+#endif
 #ifdef USE_TOUCH
 #include "touch.h"
 #endif
@@ -452,6 +455,10 @@ int bootloader_main(void) {
   i2c_init();
 #endif
 
+#ifdef USE_OPTIGA
+  optiga_hal_init();
+#endif
+
 #ifdef USE_TOUCH
   touch_power_on();
   touch_init();
diff --git a/core/embed/trezorhal/stm32f4/optiga_hal.c b/core/embed/trezorhal/stm32f4/optiga_hal.c
index 2f3164402b..0a3f92acb2 100644
--- a/core/embed/trezorhal/stm32f4/optiga_hal.c
+++ b/core/embed/trezorhal/stm32f4/optiga_hal.c
@@ -11,6 +11,9 @@ void optiga_hal_init(void) {
   GPIO_InitStructure.Alternate = 0;
   GPIO_InitStructure.Pin = GPIO_PIN_9;
   HAL_GPIO_Init(GPIOD, &GPIO_InitStructure);
+  // perform reset on every initialization
+  HAL_GPIO_WritePin(GPIOD, GPIO_PIN_9, GPIO_PIN_RESET);
+  hal_delay(10);
   HAL_GPIO_WritePin(GPIOD, GPIO_PIN_9, GPIO_PIN_SET);
   // warm reset startup time min 15ms
   hal_delay(20);
diff --git a/core/embed/trezorhal/unix/optiga_hal.c b/core/embed/trezorhal/unix/optiga_hal.c
new file mode 100644
index 0000000000..9bf346f028
--- /dev/null
+++ b/core/embed/trezorhal/unix/optiga_hal.c
@@ -0,0 +1,26 @@
+/*
+ * This file is part of the Trezor project, https://trezor.io/
+ *
+ * Copyright (c) SatoshiLabs
+ *
+ * This program 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 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+void optiga_hal_init(void) {
+  // nothing to do
+}
+
+void optiga_reset(void) {
+  // nothing to do
+}