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-rw-r--r--include/linux/serial_reg.h16
1 files changed, 16 insertions, 0 deletions
diff --git a/include/linux/serial_reg.h b/include/linux/serial_reg.h
index cf9327c..c7a0ce1 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
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