diff --git a/drivers/scsi/ahci.c b/drivers/scsi/ahci.c
index 83467a0..cfbdd3f 100644
--- a/drivers/scsi/ahci.c
+++ b/drivers/scsi/ahci.c
@@ -243,7 +243,7 @@
 	.port_stop		= ahci_port_stop,
 };
 
-static struct ata_port_info ahci_port_info[] = {
+static const struct ata_port_info ahci_port_info[] = {
 	/* board_ahci */
 	{
 		.sht		= &ahci_sht,
diff --git a/drivers/scsi/ata_piix.c b/drivers/scsi/ata_piix.c
index 333d69d..887b2b9 100644
--- a/drivers/scsi/ata_piix.c
+++ b/drivers/scsi/ata_piix.c
@@ -78,9 +78,7 @@
 	ich5_sata		= 1,
 	piix4_pata		= 2,
 	ich6_sata		= 3,
-	ich6_sata_rm		= 4,
-	ich7_sata		= 5,
-	esb2_sata		= 6,
+	ich6_sata_ahci		= 4,
 
 	PIIX_AHCI_DEVICE	= 6,
 };
@@ -111,11 +109,11 @@
 	{ 0x8086, 0x25a3, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata },
 	{ 0x8086, 0x25b0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich5_sata },
 	{ 0x8086, 0x2651, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata },
-	{ 0x8086, 0x2652, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_rm },
-	{ 0x8086, 0x2653, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_rm },
-	{ 0x8086, 0x27c0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich7_sata },
-	{ 0x8086, 0x27c4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich7_sata },
-	{ 0x8086, 0x2680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, esb2_sata },
+	{ 0x8086, 0x2652, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
+	{ 0x8086, 0x2653, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
+	{ 0x8086, 0x27c0, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
+	{ 0x8086, 0x27c4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
+	{ 0x8086, 0x2680, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich6_sata_ahci },
 
 	{ }	/* terminate list */
 };
@@ -258,31 +256,7 @@
 		.port_ops	= &piix_sata_ops,
 	},
 
-	/* ich6_sata_rm */
-	{
-		.sht		= &piix_sht,
-		.host_flags	= ATA_FLAG_SATA | ATA_FLAG_SRST |
-				  PIIX_FLAG_COMBINED | PIIX_FLAG_CHECKINTR |
-				  ATA_FLAG_SLAVE_POSS | PIIX_FLAG_AHCI,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x07, /* mwdma0-2 */
-		.udma_mask	= 0x7f,	/* udma0-6 */
-		.port_ops	= &piix_sata_ops,
-	},
-
-	/* ich7_sata */
-	{
-		.sht		= &piix_sht,
-		.host_flags	= ATA_FLAG_SATA | ATA_FLAG_SRST |
-				  PIIX_FLAG_COMBINED | PIIX_FLAG_CHECKINTR |
-				  ATA_FLAG_SLAVE_POSS | PIIX_FLAG_AHCI,
-		.pio_mask	= 0x1f,	/* pio0-4 */
-		.mwdma_mask	= 0x07, /* mwdma0-2 */
-		.udma_mask	= 0x7f,	/* udma0-6 */
-		.port_ops	= &piix_sata_ops,
-	},
-
-	/* esb2_sata */
+	/* ich6_sata_ahci */
 	{
 		.sht		= &piix_sht,
 		.host_flags	= ATA_FLAG_SATA | ATA_FLAG_SRST |
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 665ae79..11ed6fa 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -605,7 +605,7 @@
 	tf->command = ata_rw_cmds[index + lba48 + write];
 }
 
-static const char * xfer_mode_str[] = {
+static const char * const xfer_mode_str[] = {
 	"UDMA/16",
 	"UDMA/25",
 	"UDMA/33",
@@ -1444,11 +1444,23 @@
 	} while (time_before(jiffies, timeout));
 
 	/* TODO: phy layer with polling, timeouts, etc. */
-	if (sata_dev_present(ap))
+	sstatus = scr_read(ap, SCR_STATUS);
+	if (sata_dev_present(ap)) {
+		const char *speed;
+		u32 tmp;
+
+		tmp = (sstatus >> 4) & 0xf;
+		if (tmp & (1 << 0))
+			speed = "1.5";
+		else if (tmp & (1 << 1))
+			speed = "3.0";
+		else
+			speed = "<unknown>";
+		printk(KERN_INFO "ata%u: SATA link up %s Gbps (SStatus %X)\n",
+		       ap->id, speed, sstatus);
 		ata_port_probe(ap);
-	else {
-		sstatus = scr_read(ap, SCR_STATUS);
-		printk(KERN_INFO "ata%u: no device found (phy stat %08x)\n",
+	} else {
+		printk(KERN_INFO "ata%u: SATA link down (SStatus %X)\n",
 		       ap->id, sstatus);
 		ata_port_disable(ap);
 	}
@@ -2071,7 +2083,7 @@
 		ap->id, dev->devno);
 }
 
-static const char * ata_dma_blacklist [] = {
+static const char * const ata_dma_blacklist [] = {
 	"WDC AC11000H",
 	"WDC AC22100H",
 	"WDC AC32500H",
diff --git a/drivers/scsi/libata-scsi.c b/drivers/scsi/libata-scsi.c
index 379e870..ef763ed 100644
--- a/drivers/scsi/libata-scsi.c
+++ b/drivers/scsi/libata-scsi.c
@@ -418,7 +418,7 @@
 	int i;
 
 	/* Based on the 3ware driver translation table */
-	static unsigned char sense_table[][4] = {
+	static const unsigned char sense_table[][4] = {
 		/* BBD|ECC|ID|MAR */
 		{0xd1, 		ABORTED_COMMAND, 0x00, 0x00}, 	// Device busy                  Aborted command
 		/* BBD|ECC|ID */
@@ -449,7 +449,7 @@
 		{0x80, 		MEDIUM_ERROR, 0x11, 0x04}, 	// Block marked bad		  Medium error, unrecovered read error
 		{0xFF, 0xFF, 0xFF, 0xFF}, // END mark
 	};
-	static unsigned char stat_table[][4] = {
+	static const unsigned char stat_table[][4] = {
 		/* Must be first because BUSY means no other bits valid */
 		{0x80, 		ABORTED_COMMAND, 0x47, 0x00},	// Busy, fake parity for now
 		{0x20, 		HARDWARE_ERROR,  0x00, 0x00}, 	// Device fault
@@ -1532,7 +1532,7 @@
 	return 0;
 }
 
-static const char *inq_83_str = "Linux ATA-SCSI simulator";
+static const char * const inq_83_str = "Linux ATA-SCSI simulator";
 
 /**
  *	ata_scsiop_inq_83 - Simulate INQUIRY EVPD page 83, device identity
diff --git a/drivers/scsi/sata_mv.c b/drivers/scsi/sata_mv.c
index ab7432a..c941766 100644
--- a/drivers/scsi/sata_mv.c
+++ b/drivers/scsi/sata_mv.c
@@ -430,7 +430,7 @@
 	.host_stop		= mv_host_stop,
 };
 
-static struct ata_port_info mv_port_info[] = {
+static const struct ata_port_info mv_port_info[] = {
 	{  /* chip_504x */
 		.sht		= &mv_sht,
 		.host_flags	= MV_COMMON_FLAGS,
diff --git a/drivers/scsi/sata_promise.c b/drivers/scsi/sata_promise.c
index 8a8e3e3..0208906 100644
--- a/drivers/scsi/sata_promise.c
+++ b/drivers/scsi/sata_promise.c
@@ -158,7 +158,7 @@
 	.host_stop		= ata_pci_host_stop,
 };
 
-static struct ata_port_info pdc_port_info[] = {
+static const struct ata_port_info pdc_port_info[] = {
 	/* board_2037x */
 	{
 		.sht		= &pdc_ata_sht,
@@ -703,7 +703,7 @@
 		probe_ent->port[3].scr_addr = base + 0x700;
 		break;
 	case board_2037x:
-       		probe_ent->n_ports = 2;
+		probe_ent->n_ports = 2;
 		break;
 	case board_20619:
 		probe_ent->n_ports = 4;
@@ -713,7 +713,7 @@
 
 		probe_ent->port[2].scr_addr = base + 0x600;
 		probe_ent->port[3].scr_addr = base + 0x700;
-                break;
+		break;
 	default:
 		BUG();
 		break;
diff --git a/drivers/scsi/sata_qstor.c b/drivers/scsi/sata_qstor.c
index a8987f5..6b9c3ae 100644
--- a/drivers/scsi/sata_qstor.c
+++ b/drivers/scsi/sata_qstor.c
@@ -170,7 +170,7 @@
 	.bmdma_status		= qs_bmdma_status,
 };
 
-static struct ata_port_info qs_port_info[] = {
+static const struct ata_port_info qs_port_info[] = {
 	/* board_2068_idx */
 	{
 		.sht		= &qs_ata_sht,
diff --git a/drivers/scsi/sata_sil.c b/drivers/scsi/sata_sil.c
index 3609186..d205348 100644
--- a/drivers/scsi/sata_sil.c
+++ b/drivers/scsi/sata_sil.c
@@ -176,7 +176,7 @@
 	.host_stop		= ata_pci_host_stop,
 };
 
-static struct ata_port_info sil_port_info[] = {
+static const struct ata_port_info sil_port_info[] = {
 	/* sil_3112 */
 	{
 		.sht		= &sil_sht,
diff --git a/drivers/scsi/sata_sx4.c b/drivers/scsi/sata_sx4.c
index dcc3ad9..7c4b535 100644
--- a/drivers/scsi/sata_sx4.c
+++ b/drivers/scsi/sata_sx4.c
@@ -215,7 +215,7 @@
 	.host_stop		= pdc20621_host_stop,
 };
 
-static struct ata_port_info pdc_port_info[] = {
+static const struct ata_port_info pdc_port_info[] = {
 	/* board_20621 */
 	{
 		.sht		= &pdc_sata_sht,
diff --git a/include/linux/libata.h b/include/linux/libata.h
index f2dbb68..83a83ba 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -330,8 +330,6 @@
 
 	u8			ctl;	/* cache of ATA control register */
 	u8			last_ctl;	/* Cache last written value */
-	unsigned int		bus_state;
-	unsigned int		port_state;
 	unsigned int		pio_mask;
 	unsigned int		mwdma_mask;
 	unsigned int		udma_mask;