diff --git a/arch/sh/include/asm/system.h b/arch/sh/include/asm/system.h
index 56fd77acea..24b5ce8e30 100644
--- a/arch/sh/include/asm/system.h
+++ b/arch/sh/include/asm/system.h
@@ -274,8 +274,8 @@ void enable_hlt(void);
 
 static inline void trigger_address_error(void)
 {
+	set_bl_bit();
 	__asm__ __volatile__ (
-		"ldc %0, sr\n\t"
 		"mov.l @%1, %0"
 		:
 		: "r" (0x10000000), "r" (0x80000001)
diff --git a/drivers/serial/serial_sh.c b/drivers/serial/serial_sh.c
index 3c931d0212..ee1f2d768a 100644
--- a/drivers/serial/serial_sh.c
+++ b/drivers/serial/serial_sh.c
@@ -117,6 +117,14 @@ static int serial_rx_fifo_level(void)
 	return scif_rxfill(&sh_sci);
 }
 
+static void handle_error(void)
+{
+	sci_in(&sh_sci, SCxSR);
+	sci_out(&sh_sci, SCxSR, SCxSR_ERROR_CLEAR(&sh_sci));
+	sci_in(&sh_sci, SCLSR);
+	sci_out(&sh_sci, SCLSR, 0x00);
+}
+
 void serial_raw_putc(const char c)
 {
 	while (1) {
@@ -138,16 +146,14 @@ static void sh_serial_putc(const char c)
 
 static int sh_serial_tstc(void)
 {
+	if (sci_in(&sh_sci, SCxSR) & SCIF_ERRORS) {
+		handle_error();
+		return 0;
+	}
+
 	return serial_rx_fifo_level() ? 1 : 0;
 }
 
-void handle_error(void)
-{
-	sci_in(&sh_sci, SCxSR);
-	sci_out(&sh_sci, SCxSR, SCxSR_ERROR_CLEAR(&sh_sci));
-	sci_in(&sh_sci, SCLSR);
-	sci_out(&sh_sci, SCLSR, 0x00);
-}
 
 int serial_getc_check(void)
 {