MTR_DRAM_WIDTH
#define MTR_DRAM_WIDTH(mtr) ((((mtr) >> 6) & 0x1) ? 8 : 4)
#define MTR_DRAM_WIDTH(mtr) (((mtr) & (1 << 8)) ? 8 : 4)
#define MTR_DRAM_WIDTH(mtr) (((mtr) & (1 << 6)) ? 8 : 4)