2 files changed, 22 insertions, 3 deletions

diff --git a/drivers/serial/sh-sci.c b/drivers/serial/sh-sci.c
index 8e2feb563347..32dc2fc50e6b 100644
--- a/drivers/serial/sh-sci.c
+++ b/drivers/serial/sh-sci.c
@@ -272,7 +272,8 @@ static inline void sci_init_pins(struct uart_port *port, unsigned int cflag)
                 __raw_writew(data, PSCR);
         }
 }
-#elif defined(CONFIG_CPU_SUBTYPE_SH7763) || \
+#elif defined(CONFIG_CPU_SUBTYPE_SH7757) || \
+      defined(CONFIG_CPU_SUBTYPE_SH7763) || \
       defined(CONFIG_CPU_SUBTYPE_SH7780) || \
       defined(CONFIG_CPU_SUBTYPE_SH7785) || \
       defined(CONFIG_CPU_SUBTYPE_SH7786) || \
@@ -662,10 +663,11 @@ static irqreturn_t sci_rx_interrupt(int irq, void *port)
 static irqreturn_t sci_tx_interrupt(int irq, void *ptr)
 {
         struct uart_port *port = ptr;
+        unsigned long flags;
 
-        spin_lock_irq(&port->lock);
+        spin_lock_irqsave(&port->lock, flags);
         sci_transmit_chars(port);
-        spin_unlock_irq(&port->lock);
+        spin_unlock_irqrestore(&port->lock, flags);
 
         return IRQ_HANDLED;
 }
diff --git a/drivers/serial/sh-sci.h b/drivers/serial/sh-sci.h
index 38072c15b845..3e2fcf93b42e 100644
--- a/drivers/serial/sh-sci.h
+++ b/drivers/serial/sh-sci.h
@@ -112,6 +112,13 @@
 #elif defined(CONFIG_H8S2678)
 # define SCSCR_INIT(port)          0x30 /* TIE=0,RIE=0,TE=1,RE=1 */
 # define H8300_SCI_DR(ch) *(volatile char *)(P1DR + h8300_sci_pins[ch].port)
+#elif defined(CONFIG_CPU_SUBTYPE_SH7757)
+# define SCSPTR0 0xfe4b0020
+# define SCSPTR1 0xfe4b0020
+# define SCSPTR2 0xfe4b0020
+# define SCIF_ORER 0x0001
+# define SCSCR_INIT(port)       0x38
+# define SCIF_ONLY
 #elif defined(CONFIG_CPU_SUBTYPE_SH7763)
 # define SCSPTR0 0xffe00024 /* 16 bit SCIF */
 # define SCSPTR1 0xffe08024 /* 16 bit SCIF */
@@ -562,6 +569,16 @@ 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_SH7757)
+static inline int sci_rxd_in(struct uart_port *port)
+{
+        if (port->mapbase == 0xfe4b0000)
+                return ctrl_inw(SCSPTR0) & 0x0001 ? 1 : 0;
+        if (port->mapbase == 0xfe4c0000)
+                return ctrl_inw(SCSPTR1) & 0x0001 ? 1 : 0;
+        if (port->mapbase == 0xfe4d0000)
+                return ctrl_inw(SCSPTR2) & 0x0001 ? 1 : 0;
+}
 #elif defined(CONFIG_CPU_SUBTYPE_SH7760)
 static inline int sci_rxd_in(struct uart_port *port)
 {