1 files changed, 16 insertions, 0 deletions

diff --git a/include/linux/serial_reg.h b/include/linux/serial_reg.h
index cf9327c051ad..c7a0ce11cd47 100644
--- a/include/linux/serial_reg.h
+++ b/include/linux/serial_reg.h
@@ -221,8 +221,24 @@
 #define UART_FCR_PXAR16 0x80    /* receive FIFO threshold = 16 */
 #define UART_FCR_PXAR32 0xc0    /* receive FIFO threshold = 32 */
 
+/*
+ * Intel MID on-chip HSU (High Speed UART) defined bits
+ */
+#define UART_FCR_HSU_64_1B      0x00    /* receive FIFO treshold = 1 */
+#define UART_FCR_HSU_64_16B     0x40    /* receive FIFO treshold = 16 */
+#define UART_FCR_HSU_64_32B     0x80    /* receive FIFO treshold = 32 */
+#define UART_FCR_HSU_64_56B     0xc0    /* receive FIFO treshold = 56 */
+
+#define UART_FCR_HSU_16_1B      0x00    /* receive FIFO treshold = 1 */
+#define UART_FCR_HSU_16_4B      0x40    /* receive FIFO treshold = 4 */
+#define UART_FCR_HSU_16_8B      0x80    /* receive FIFO treshold = 8 */
+#define UART_FCR_HSU_16_14B     0xc0    /* receive FIFO treshold = 14 */
 
+#define UART_FCR_HSU_64B_FIFO   0x20    /* chose 64 bytes FIFO */
+#define UART_FCR_HSU_16B_FIFO   0x00    /* chose 16 bytes FIFO */
 
+#define UART_FCR_HALF_EMPT_TXI  0x00    /* trigger TX_EMPT IRQ for half empty */
+#define UART_FCR_FULL_EMPT_TXI  0x08    /* trigger TX_EMPT IRQ for full empty */
 
 /*
  * These register definitions are for the 16C950