ARM: OMAP: Enable serial idling and wakeup features

Enable serial idling and wakeup features
Signed-off-by: NJuha Yrjola <juha.yrjola@solidboot.com>
Signed-off-by: NTony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/serial.c

@@ -84,7 +84,7 @@ static inline void __init omap_serial_reset(struct plat_serial8250_port *p)
 	serial_write_reg(p, UART_OMAP_MDR1, 0x07);
 	serial_write_reg(p, UART_OMAP_SCR, 0x08);
 	serial_write_reg(p, UART_OMAP_MDR1, 0x00);
-	serial_write_reg(p, UART_OMAP_SYSC, 0x01);
+	serial_write_reg(p, UART_OMAP_SYSC, (0x02 << 3) | (1 << 2) | (1 << 0));
 }
 
 void __init omap_serial_init()