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authorJerry Huang <Chang-Ming.Huang@freescale.com>2011-12-20 14:50:27 +0800
committerJeff Garzik <jgarzik@redhat.com>2012-01-17 20:49:07 -0500
commit93272b132a72450dfc16f13d32223fe47aaf5061 (patch)
treed23e8fc226170ecbcdb6fcf7487beeadd5ca8748
parent966f1212e1ac5fe3ddf04479d21488ddb36a2608 (diff)
downloadvexpress-lsk-93272b132a72450dfc16f13d32223fe47aaf5061.tar.gz
[libata] sata_fsl: fix the controller operating mode
Configure the FSL SATA controller to the preferred, enterprise mode. Signed-off-by: Yutaka Ando <r46913@freescale.com> Signed-off-by: Jerry Huang <Chang-Ming.Huang@freescale.com> CC: Jeff Garzik <jgarzik@pobox.com> Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
-rw-r--r--drivers/ata/sata_fsl.c11
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/ata/sata_fsl.c b/drivers/ata/sata_fsl.c
index 5a2c95ba050..0120b0d1e9a 100644
--- a/drivers/ata/sata_fsl.c
+++ b/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;
}