2 files changed, 26 insertions, 3 deletions

diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 1f89496d530e..672cd1042539 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -367,7 +367,9 @@ static void sci_init_pins_scif(struct uart_port *port, unsigned int cflag)
         } else {
 #ifdef CONFIG_CPU_SUBTYPE_SH7343
                 /* Nothing */
-#elif defined(CONFIG_CPU_SUBTYPE_SH7780) || defined(CONFIG_CPU_SUBTYPE_SH7785)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7780) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7785) || \
+      defined(CONFIG_CPU_SUBTYPE_SHX3)
                 ctrl_outw(0x0080, SCSPTR0); /* Set RTS = 1 */
 #else
                 ctrl_outw(0x0080, SCSPTR2); /* Set RTS = 1 */
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index da643b31715b..247fb66bf0f4 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -78,7 +78,7 @@
 # define SCPDR  0xA4050136        /* 16 bit SCIF */
 # define SCSCR_INIT(port)  0x0030 /* TIE=0,RIE=0,TE=1,RE=1 */
 # define SCIF_ONLY
-#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712) 
+#elif defined(CONFIG_CPU_SUBTYPE_SH7710) || defined(CONFIG_CPU_SUBTYPE_SH7712)
 # define SCSPTR0 0xA4400000       /* 16 bit SCIF */
 # define SCI_NPORTS 2
 # define SCIF_ORER 0x0001   /* overrun error bit */
@@ -173,6 +173,14 @@
 # define SCIF_ORER 0x0001  /* overrun error bit */
 # define SCSCR_INIT(port)       0x38 /* TIE=0,RIE=0,TE=1,RE=1,REIE=1 */
 # define SCIF_ONLY
+#elif defined(CONFIG_CPU_SUBTYPE_SHX3)
+# define SCSPTR0 0xffc30020             /* 16 bit SCIF */
+# define SCSPTR1 0xffc40020             /* 16 bit SCIF */
+# define SCSPTR2 0xffc50020             /* 16 bit SCIF */
+# 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 */
+# define SCIF_ONLY
 #else
 # error CPU subtype not defined
 #endif
@@ -189,7 +197,8 @@
     defined(CONFIG_CPU_SUBTYPE_SH7751)  || \
     defined(CONFIG_CPU_SUBTYPE_SH7751R) || \
     defined(CONFIG_CPU_SUBTYPE_SH7780)  || \
-    defined(CONFIG_CPU_SUBTYPE_SH7785)
+    defined(CONFIG_CPU_SUBTYPE_SH7785)  || \
+    defined(CONFIG_CPU_SUBTYPE_SHX3)
 #define SCI_CTRL_FLAGS_REIE 0x08 /* 7750 SCIF */
 #else
 #define SCI_CTRL_FLAGS_REIE 0
@@ -666,6 +675,18 @@ static inline int sci_rxd_in(struct uart_port *port)
                 return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */
         return 1;
 }
+#elif defined(CONFIG_CPU_SUBTYPE_SHX3)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+        if (port->mapbase == 0xffc30000)
+                return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0; /* SCIF */
+        if (port->mapbase == 0xffc40000)
+                return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0; /* SCIF */
+        if (port->mapbase == 0xffc50000)
+                return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0; /* SCIF */
+        if (port->mapbase == 0xffc60000)
+                return ctrl_inw(SCSPTR3) & 0x0001 ? 1 : 0; /* SCIF */
+}
 #endif
 
 /*