--- zzzz-none-000/linux-2.6.19.2/arch/arm/mach-omap2/memory.c	2007-01-10 19:10:37.000000000 +0000
+++ davinci-8020-5505/linux-2.6.19.2/arch/arm/mach-omap2/memory.c	2007-01-11 07:38:19.000000000 +0000
@@ -30,6 +30,7 @@
 #include "prcm-regs.h"
 #include "memory.h"
 
+
 static struct memory_timings mem_timings;
 
 u32 omap2_memory_get_slow_dll_ctrl(void)
@@ -99,3 +100,20 @@
 	/* 90 degree phase for anything below 133Mhz + disable DLL filter */
 	mem_timings.slow_dll_ctrl |= ((1 << 1) | (3 << 8));
 }
+
+/* turn on smart idle modes for SDRAM scheduler and controller */
+void __init omap2_init_memory(void)
+{
+	u32 l;
+
+	l = SMS_SYSCONFIG;
+	l &= ~(0x3 << 3);
+	l |= (0x2 << 3);
+	SMS_SYSCONFIG = l;
+
+	l = SDRC_SYSCONFIG;
+	l &= ~(0x3 << 3);
+	l |= (0x2 << 3);
+	SDRC_SYSCONFIG = l;
+
+}