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-rw-r--r--include/linux/amba/serial.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/linux/amba/serial.h b/include/linux/amba/serial.h
index 64a982ea5d5f..5a5a7fd62490 100644
--- a/include/linux/amba/serial.h
+++ b/include/linux/amba/serial.h
@@ -114,6 +114,9 @@
#define UART011_IFLS_TX4_8 (2 << 0)
#define UART011_IFLS_TX6_8 (3 << 0)
#define UART011_IFLS_TX7_8 (4 << 0)
+/* special values for ST vendor with deeper fifo */
+#define UART011_IFLS_RX_HALF (5 << 3)
+#define UART011_IFLS_TX_HALF (5 << 0)
#define UART011_OEIM (1 << 10) /* overrun error interrupt mask */
#define UART011_BEIM (1 << 9) /* break error interrupt mask */