diff --git a/firmware/export/tcc780x.h b/firmware/export/tcc780x.h
index ca6256bf06..1e2052c4be 100644
--- a/firmware/export/tcc780x.h
+++ b/firmware/export/tcc780x.h
@@ -89,6 +89,7 @@
 
 /* Device bits for SWRESET & BCLKCTR */
 
+#define DEV_USBD  (1<<1)
 #define DEV_LCDC  (1<<2)
 #define DEV_SDMMC (1<<6)
 #define DEV_NAND  (1<<9)
@@ -112,7 +113,7 @@
 #define POL     (*(volatile unsigned long *)0xF300101C)
 #define MIRQ    (*(volatile unsigned long *)0xF3001028)
 #define MFIQ    (*(volatile unsigned long *)0xF300102C)
-#define MODE    (*(volatile unsigned long *)0xF3001030)
+#define TMODE   (*(volatile unsigned long *)0xF3001030)
 #define ALLMASK (*(volatile unsigned long *)0xF3001044)
 #define VAIRQ   (*(volatile unsigned long *)0xF3001080)
 #define VAFIQ   (*(volatile unsigned long *)0xF3001084)
@@ -126,6 +127,7 @@
 #define TIMER0_IRQ_MASK (1<<6)
 #define DAI_RX_IRQ_MASK (1<<14)
 #define DAI_TX_IRQ_MASK (1<<15)
+#define USBD_IRQ_MASK   (1<<21)
 #define ADC_IRQ_MASK    (1<<30)
 
 /* Timer / Counters */
diff --git a/firmware/target/arm/tcc780x/system-tcc780x.c b/firmware/target/arm/tcc780x/system-tcc780x.c
index 973dbaf719..5ecbbdac7c 100644
--- a/firmware/target/arm/tcc780x/system-tcc780x.c
+++ b/firmware/target/arm/tcc780x/system-tcc780x.c
@@ -254,7 +254,7 @@ void system_init(void)
     IRQSEL = ~(DAI_RX_IRQ_MASK | DAI_TX_IRQ_MASK);
 
     POL = 0x200108;     /* IRQs 3,8,21 active low (as OF) */
-    MODE = 0x20ce07c0;  /* IRQs 6-10,17-19,22-23,29 level-triggered (as OF) */
+    TMODE = 0x20ce07c0; /* IRQs 6-10,17-19,22-23,29 level-triggered (as OF) */
 
     VCTRL |= (1<<31);   /* Reading from VNIRQ clears that interrupt */