1 files changed, 9 insertions, 0 deletions

diff --git a/include/linux/serial_sci.h b/include/linux/serial_sci.h
index f722a2275add..ff856b5bd276 100644
--- a/include/linux/serial_sci.h
+++ b/include/linux/serial_sci.h
@@ -7,6 +7,14 @@
  * Generic header for SuperH SCI(F) (used by sh/sh64/h8300 and related parts)
  */
 
+enum {
+        SCBRR_ALGO_1,           /* ((clk + 16 * bps) / (16 * bps) - 1) */
+        SCBRR_ALGO_2,           /* ((clk + 16 * bps) / (32 * bps) - 1) */
+        SCBRR_ALGO_3,           /* (((clk * 2) + 16 * bps) / (16 * bps) - 1) */
+        SCBRR_ALGO_4,           /* (((clk * 2) + 16 * bps) / (32 * bps) - 1) */
+        SCBRR_ALGO_5,           /* (((clk * 1000 / 32) / bps) - 1) */
+};
+
 #define SCSCR_TIE       (1 << 7)
 #define SCSCR_RIE       (1 << 6)
 #define SCSCR_TE        (1 << 5)
@@ -36,6 +44,7 @@ struct plat_sci_port {
         upf_t           flags;                  /* UPF_* flags */
         char            *clk;                   /* clock string */
 
+        unsigned int    scbrr_algo_id;          /* SCBRR calculation algo */
         unsigned int    scscr;                  /* SCSCR initialization */
 };