MSC_RBW
#define MSC_32BitStMem (MSC_RBW*0) /* 32-Bit Static Memory */
#define MSC_16BitStMem (MSC_RBW*1) /* 16-Bit Static Memory */
subdev->map.bankwidth = (MSC0 & MSC_RBW) ? 2 : 4;
subdev->map.bankwidth = ((MSC0 >> 16) & MSC_RBW) ? 2 : 4;