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-rw-r--r--drivers/ata/ahci.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 17ee6ed985d..b1eb4e24c86 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -433,6 +433,7 @@ static const struct ata_port_info ahci_port_info[] = {
/* board_ahci_sb600 */
{
AHCI_HFLAGS (AHCI_HFLAG_IGN_SERR_INTERNAL |
+ AHCI_HFLAG_32BIT_ONLY |
AHCI_HFLAG_SECT255 | AHCI_HFLAG_NO_PMP),
.flags = AHCI_FLAG_COMMON,
.link_flags = AHCI_LFLAG_COMMON,
@@ -1217,8 +1218,11 @@ static void ahci_dev_config(struct ata_device *dev)
{
struct ahci_host_priv *hpriv = dev->link->ap->host->private_data;
- if (hpriv->flags & AHCI_HFLAG_SECT255)
+ if (hpriv->flags & AHCI_HFLAG_SECT255) {
dev->max_sectors = 255;
+ ata_dev_printk(dev, KERN_INFO,
+ "SB600 AHCI: limiting to 255 sectors per cmd\n");
+ }
}
static unsigned int ahci_dev_classify(struct ata_port *ap)