diff --git a/embed/trezorhal/common.c b/embed/trezorhal/common.c
index 32baa46155..104c114cb9 100644
--- a/embed/trezorhal/common.c
+++ b/embed/trezorhal/common.c
@@ -60,6 +60,9 @@ void hal_delay(uint32_t ms)
     HAL_Delay(ms);
 }
 
+#define USB_OTG_HS_DATA_FIFO_RAM  (USB_OTG_HS_PERIPH_BASE + 0x20000U) // reference RM0090 section 35.12.1 Figure 413
+#define USB_OTG_HS_DATA_FIFO_SIZE (4096U)
+
 void clear_peripheral_local_memory(void)
 {
     RCC->AHB1ENR |= RCC_AHB1ENR_OTGHSEN; // enable USB_OTG_HS peripheral clock so that the peripheral memory is accessible
diff --git a/embed/trezorhal/common.h b/embed/trezorhal/common.h
index 3863ac8adc..67d888e285 100644
--- a/embed/trezorhal/common.h
+++ b/embed/trezorhal/common.h
@@ -8,9 +8,6 @@
 #define FIRMWARE_START     0x08020000
 #define HEADER_SIZE        0x200
 
-#define USB_OTG_HS_DATA_FIFO_RAM  (USB_OTG_HS_PERIPH_BASE + 0x20000U) // reference RM0090 section 35.12.1 Figure 413
-#define USB_OTG_HS_DATA_FIFO_SIZE (4096U)
-
 extern void memset_reg(volatile void *start, volatile void *stop, uint32_t val);
 
 void clear_peripheral_local_memory(void);