1 files changed, 37 insertions, 6 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index b1a257746a19..a3241a1a710b 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -575,7 +575,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
         { PCI_VDEVICE(ATI, 0x4395), board_ahci_sb700 }, /* ATI SB700/800 */
 
         /* AMD */
-        { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD SB900 */
+        { PCI_VDEVICE(AMD, 0x7800), board_ahci }, /* AMD Hudson-2 */
         /* AMD is using RAID class only for ahci controllers */
         { PCI_VENDOR_ID_AMD, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
           PCI_CLASS_STORAGE_RAID << 8, 0xffffff, board_ahci },
@@ -605,6 +605,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
         { PCI_VDEVICE(NVIDIA, 0x0559), board_ahci_yesncq },     /* MCP67 */
         { PCI_VDEVICE(NVIDIA, 0x055a), board_ahci_yesncq },     /* MCP67 */
         { PCI_VDEVICE(NVIDIA, 0x055b), board_ahci_yesncq },     /* MCP67 */
+        { PCI_VDEVICE(NVIDIA, 0x0580), board_ahci_yesncq },     /* Linux ID */
         { PCI_VDEVICE(NVIDIA, 0x07f0), board_ahci_yesncq },     /* MCP73 */
         { PCI_VDEVICE(NVIDIA, 0x07f1), board_ahci_yesncq },     /* MCP73 */
         { PCI_VDEVICE(NVIDIA, 0x07f2), board_ahci_yesncq },     /* MCP73 */
@@ -2717,6 +2718,30 @@ static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
                         },
                         .driver_data = "20071026",      /* yyyymmdd */
                 },
+                /*
+                 * All BIOS versions for the MSI K9A2 Platinum (MS-7376)
+                 * support 64bit DMA.
+                 *
+                 * BIOS versions earlier than 1.5 had the Manufacturer DMI
+                 * fields as "MICRO-STAR INTERANTIONAL CO.,LTD".
+                 * This spelling mistake was fixed in BIOS version 1.5, so
+                 * 1.5 and later have the Manufacturer as
+                 * "MICRO-STAR INTERNATIONAL CO.,LTD".
+                 * So try to match on DMI_BOARD_VENDOR of "MICRO-STAR INTER".
+                 *
+                 * BIOS versions earlier than 1.9 had a Board Product Name
+                 * DMI field of "MS-7376". This was changed to be
+                 * "K9A2 Platinum (MS-7376)" in version 1.9, but we can still
+                 * match on DMI_BOARD_NAME of "MS-7376".
+                 */
+                {
+                        .ident = "MSI K9A2 Platinum",
+                        .matches = {
+                                DMI_MATCH(DMI_BOARD_VENDOR,
+                                          "MICRO-STAR INTER"),
+                                DMI_MATCH(DMI_BOARD_NAME, "MS-7376"),
+                        },
+                },
                 { }
         };
         const struct dmi_system_id *match;
@@ -2728,18 +2753,24 @@ static bool ahci_sb600_enable_64bit(struct pci_dev *pdev)
             !match)
                 return false;
 
+        if (!match->driver_data)
+                goto enable_64bit;
+
         dmi_get_date(DMI_BIOS_DATE, &year, &month, &date);
         snprintf(buf, sizeof(buf), "%04d%02d%02d", year, month, date);
 
-        if (strcmp(buf, match->driver_data) >= 0) {
-                dev_printk(KERN_WARNING, &pdev->dev, "%s: enabling 64bit DMA\n",
-                           match->ident);
-                return true;
-        } else {
+        if (strcmp(buf, match->driver_data) >= 0)
+                goto enable_64bit;
+        else {
                 dev_printk(KERN_WARNING, &pdev->dev, "%s: BIOS too old, "
                            "forcing 32bit DMA, update BIOS\n", match->ident);
                 return false;
         }
+
+enable_64bit:
+        dev_printk(KERN_WARNING, &pdev->dev, "%s: enabling 64bit DMA\n",
+                   match->ident);
+        return true;
 }
 
 static bool ahci_broken_system_poweroff(struct pci_dev *pdev)