diff --git a/include/linux/ata.h b/include/linux/ata.h
index d894419..1df9416 100644
--- a/include/linux/ata.h
+++ b/include/linux/ata.h
@@ -200,8 +200,9 @@
 	ATA_CBL_NONE		= 0,
 	ATA_CBL_PATA40		= 1,
 	ATA_CBL_PATA80		= 2,
-	ATA_CBL_PATA_UNK	= 3,
-	ATA_CBL_SATA		= 4,
+	ATA_CBL_PATA40_SHORT	= 3,		/* 40 wire cable to high UDMA spec */
+	ATA_CBL_PATA_UNK	= 4,
+	ATA_CBL_SATA		= 5,
 
 	/* SATA Status and Control Registers */
 	SCR_STATUS		= 0,
@@ -342,6 +343,15 @@
 	return 0;
 }
 
+static inline int ata_drive_40wire(const u16 *dev_id)
+{
+	if (ata_id_major_version(dev_id) >= 5 && ata_id_is_sata(dev_id))
+		return 0;	/* SATA */
+	if (dev_id[93] & 0x4000)
+		return 0;	/* 80 wire */
+	return 1;
+}
+
 static inline int atapi_cdb_len(const u16 *dev_id)
 {
 	u16 tmp = dev_id[0] & 0x3;