ARM: omap1: use machine specific hook for late init

Signed-off-by: Shawn Guo <shawn.guo@linaro.org>
Acked-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap1/io.c

diff --git a/arch/arm/mach-omap1/io.c b/arch/arm/mach-omap1/io.c
index d969a72..cf811f2 100644
--- a/arch/arm/mach-omap1/io.c
+++ b/arch/arm/mach-omap1/io.c
@@ -138,6 +138,11 @@
 	omap_init_consistent_dma_size();
 }
 
+void __init omap1_init_late(void)
+{
+	omap_serial_wakeup_init();
+}
+
 /*
  * NOTE: Please use ioremap + __raw_read/write where possible instead of these
  */