[libata] sata_fsl: fix the controller operating mode

Configure the FSL SATA controller to the preferred, enterprise mode.
Signed-off-by: NYutaka Ando <r46913@freescale.com>
Signed-off-by: NJerry Huang <Chang-Ming.Huang@freescale.com>
CC: Jeff Garzik <jgarzik@pobox.com>
Signed-off-by: NJeff Garzik <jgarzik@redhat.com>

drivers/ata/sata_fsl.c

@@ -140,6 +140,7 @@ enum {
 	 */
 	HCONTROL_ONLINE_PHY_RST = (1 << 31),
 	HCONTROL_FORCE_OFFLINE = (1 << 30),
+	HCONTROL_LEGACY = (1 << 28),
 	HCONTROL_PARITY_PROT_MOD = (1 << 14),
 	HCONTROL_DPATH_PARITY = (1 << 12),
 	HCONTROL_SNOOP_ENABLE = (1 << 10),
@@ -1223,6 +1224,10 @@ static int sata_fsl_init_controller(struct ata_host *host)
 	 * part of the port_start() callback
 	 */
 
+	/* sata controller to operate in enterprise mode */
+	temp = ioread32(hcr_base + HCONTROL);
+	iowrite32(temp & ~HCONTROL_LEGACY, hcr_base + HCONTROL);
+
 	/* ack. any pending IRQs for this controller/port */
 	temp = ioread32(hcr_base + HSTATUS);
 	if (temp & 0x3F)
@@ -1421,6 +1426,12 @@ static int sata_fsl_resume(struct platform_device *op)
 	/* Recovery the CHBA register in host controller cmd register set */
 	iowrite32(pp->cmdslot_paddr & 0xffffffff, hcr_base + CHBA);
 
+	iowrite32((ioread32(hcr_base + HCONTROL)
+				| HCONTROL_ONLINE_PHY_RST
+				| HCONTROL_SNOOP_ENABLE
+				| HCONTROL_PMP_ATTACHED),
+			hcr_base + HCONTROL);
+
 	ata_host_resume(host);
 	return 0;
 }