1 files changed, 20 insertions, 13 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 77bba4c083cb..66e012cd3271 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -61,9 +61,14 @@
 #define EM_MSG_LED_VALUE_ON           0x00010000
 
 static int ahci_skip_host_reset;
+static int ahci_ignore_sss;
+
 module_param_named(skip_host_reset, ahci_skip_host_reset, int, 0444);
 MODULE_PARM_DESC(skip_host_reset, "skip global host reset (0=don't skip, 1=skip)");
 
+module_param_named(ignore_sss, ahci_ignore_sss, int, 0444);
+MODULE_PARM_DESC(ignore_sss, "Ignore staggered spinup flag (0=don't ignore, 1=ignore)");
+
 static int ahci_enable_alpm(struct ata_port *ap,
                 enum link_pm policy);
 static void ahci_disable_alpm(struct ata_port *ap);
@@ -577,18 +582,18 @@ static const struct pci_device_id ahci_pci_tbl[] = {
         { PCI_VDEVICE(NVIDIA, 0x0abd), board_ahci },            /* MCP79 */
         { PCI_VDEVICE(NVIDIA, 0x0abe), board_ahci },            /* MCP79 */
         { PCI_VDEVICE(NVIDIA, 0x0abf), board_ahci },            /* MCP79 */
-        { PCI_VDEVICE(NVIDIA, 0x0bc8), board_ahci },            /* MCP7B */
-        { PCI_VDEVICE(NVIDIA, 0x0bc9), board_ahci },            /* MCP7B */
-        { PCI_VDEVICE(NVIDIA, 0x0bca), board_ahci },            /* MCP7B */
-        { PCI_VDEVICE(NVIDIA, 0x0bcb), board_ahci },            /* MCP7B */
-        { PCI_VDEVICE(NVIDIA, 0x0bcc), board_ahci },            /* MCP7B */
-        { PCI_VDEVICE(NVIDIA, 0x0bcd), board_ahci },            /* MCP7B */
-        { PCI_VDEVICE(NVIDIA, 0x0bce), board_ahci },            /* MCP7B */
-        { PCI_VDEVICE(NVIDIA, 0x0bcf), board_ahci },            /* MCP7B */
-        { PCI_VDEVICE(NVIDIA, 0x0bc4), board_ahci },            /* MCP7B */
-        { PCI_VDEVICE(NVIDIA, 0x0bc5), board_ahci },            /* MCP7B */
-        { PCI_VDEVICE(NVIDIA, 0x0bc6), board_ahci },            /* MCP7B */
-        { PCI_VDEVICE(NVIDIA, 0x0bc7), board_ahci },            /* MCP7B */
+        { PCI_VDEVICE(NVIDIA, 0x0d84), board_ahci },            /* MCP89 */
+        { PCI_VDEVICE(NVIDIA, 0x0d85), board_ahci },            /* MCP89 */
+        { PCI_VDEVICE(NVIDIA, 0x0d86), board_ahci },            /* MCP89 */
+        { PCI_VDEVICE(NVIDIA, 0x0d87), board_ahci },            /* MCP89 */
+        { PCI_VDEVICE(NVIDIA, 0x0d88), board_ahci },            /* MCP89 */
+        { PCI_VDEVICE(NVIDIA, 0x0d89), board_ahci },            /* MCP89 */
+        { PCI_VDEVICE(NVIDIA, 0x0d8a), board_ahci },            /* MCP89 */
+        { PCI_VDEVICE(NVIDIA, 0x0d8b), board_ahci },            /* MCP89 */
+        { PCI_VDEVICE(NVIDIA, 0x0d8c), board_ahci },            /* MCP89 */
+        { PCI_VDEVICE(NVIDIA, 0x0d8d), board_ahci },            /* MCP89 */
+        { PCI_VDEVICE(NVIDIA, 0x0d8e), board_ahci },            /* MCP89 */
+        { PCI_VDEVICE(NVIDIA, 0x0d8f), board_ahci },            /* MCP89 */
 
         /* SiS */
         { PCI_VDEVICE(SI, 0x1184), board_ahci },                /* SiS 966 */
@@ -2692,8 +2697,10 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
         host->iomap = pcim_iomap_table(pdev);
         host->private_data = hpriv;
 
-        if (!(hpriv->cap & HOST_CAP_SSS))
+        if (!(hpriv->cap & HOST_CAP_SSS) || ahci_ignore_sss)
                 host->flags |= ATA_HOST_PARALLEL_SCAN;
+        else
+                printk(KERN_INFO "ahci: SSS flag set, parallel bus scan disabled\n");
 
         if (pi.flags & ATA_FLAG_EM)
                 ahci_reset_em(host);