-#define SG_REVISION_TYPE_SHIFT 16
-#define SG_REVISION_TYPE_MASK (0xff << SG_REVISION_TYPE_SHIFT)
-#define SG_REVISION_MODEL_SHIFT 8
-#define SG_REVISION_MODEL_MASK (0x3 << SG_REVISION_MODEL_SHIFT)
-#define SG_REVISION_REV_SHIFT 0
-#define SG_REVISION_REV_MASK (0x1f << SG_REVISION_REV_SHIFT)