serial: sh: Add support R8A7791

This adds the preset value to register for R8A7791.

Signed-off-by: Nobuhiro Iwamatsu <nobuhiro.iwamatsu.yj@renesas.com>

drivers/serial/serial_sh.h

@@ -224,7 +224,7 @@ struct uart_port {
 # define SCSPTR3 0xffc60020		/* 16 bit SCIF */
 # define SCIF_ORER 0x0001		/* Overrun error bit */
 # define SCSCR_INIT(port)	0x38	/* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
-#elif defined(CONFIG_R8A7790)
+#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791)
 # define SCIF_ORER	0x0001
 # define SCSCR_INIT(port)	0x32	/* TIE=0,RIE=0,TE=1,RE=1,REIE=0, */
 #else
@@ -301,7 +301,7 @@ struct uart_port {
 /* SH7763 SCIF2 support */
 # define SCIF2_RFDC_MASK 0x001f
 # define SCIF2_TXROOM_MAX 16
-#elif defined(CONFIG_R8A7790)
+#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791)
 # define SCIF_ERRORS (SCIF_PER | SCIF_FER | SCIF_ER | SCIF_BRK)
 # define SCIF_RFDC_MASK	0x003f
 #else
@@ -585,7 +585,7 @@ SCIF_FNS(SCSPTR,                        0,  0, 0, 0)
 #else
 SCIF_FNS(SCSPTR,                        0,  0, 0x20, 16)
 #endif
-#if defined(CONFIG_R8A7790)
+#if defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791)
 SCIF_FNS(DL,				0,  0, 0x30, 16)
 SCIF_FNS(CKS,				0,  0, 0x34, 16)
 #endif
@@ -730,7 +730,7 @@ static inline int scbrr_calc(struct uart_port port, int bps, int clk)
 #define SCBRR_VALUE(bps, clk) scbrr_calc(sh_sci, bps, clk)
 #elif defined(__H8300H__) || defined(__H8300S__)
 #define SCBRR_VALUE(bps, clk) (((clk*1000/32)/bps)-1)
-#elif defined(CONFIG_R8A7790)
+#elif defined(CONFIG_R8A7790) || defined(CONFIG_R8A7791)
 #define SCBRR DL
 #define SCBRR_VALUE(bps, clk) (clk / bps / 16)
 #else /* Generic SH */