MDREFR             16 arch/arm/mach-pxa/include/mach/smemc.h #define MDREFR		(SMEMC_VIRT + 0x04)  /* SDRAM Refresh Control Register */
MDREFR           1541 arch/arm/mach-sa1100/include/mach/SA-1100.h #define MDREFR		__REG(0xA000001C)