#define UART_IIR_TOD 0x08 /* Character Timeout Indication Detected */
-#define UART_FCR_PXAR1 0x00 /* receive FIFO treshold = 1 */
-#define UART_FCR_PXAR8 0x40 /* receive FIFO treshold = 8 */
-#define UART_FCR_PXAR16 0x80 /* receive FIFO treshold = 16 */
-#define UART_FCR_PXAR32 0xc0 /* receive FIFO treshold = 32 */
+#define UART_FCR_PXAR1 0x00 /* receive FIFO threshold = 1 */
+#define UART_FCR_PXAR8 0x40 /* receive FIFO threshold = 8 */
+#define UART_FCR_PXAR16 0x80 /* receive FIFO threshold = 16 */
+#define UART_FCR_PXAR32 0xc0 /* receive FIFO threshold = 32 */