1 files changed, 15 insertions, 4 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index bbfccdbba3ab..17ee6ed985d9 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -591,6 +591,7 @@ static const struct pci_device_id ahci_pci_tbl[] = {
 
         /* Marvell */
         { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },        /* 6145 */
+        { PCI_VDEVICE(MARVELL, 0x6121), board_ahci_mv },        /* 6121 */
 
         /* Generic, PCI class code for AHCI */
         { PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID, PCI_ANY_ID,
@@ -665,6 +666,7 @@ static void ahci_save_initial_config(struct pci_dev *pdev,
         void __iomem *mmio = pcim_iomap_table(pdev)[AHCI_PCI_BAR];
         u32 cap, port_map;
         int i;
+        int mv;
 
         /* make sure AHCI mode is enabled before accessing CAP */
         ahci_enable_ahci(mmio);
@@ -700,12 +702,16 @@ static void ahci_save_initial_config(struct pci_dev *pdev,
          * presence register, as bit 4 (counting from 0)
          */
         if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
+                if (pdev->device == 0x6121)
+                        mv = 0x3;
+                else
+                        mv = 0xf;
                 dev_printk(KERN_ERR, &pdev->dev,
                            "MV_AHCI HACK: port_map %x -> %x\n",
-                           hpriv->port_map,
-                           hpriv->port_map & 0xf);
+                           port_map,
+                           port_map & mv);
 
-                port_map &= 0xf;
+                port_map &= mv;
         }
 
         /* cross check port_map and cap.n_ports */
@@ -1172,9 +1178,14 @@ static void ahci_init_controller(struct ata_host *host)
         int i;
         void __iomem *port_mmio;
         u32 tmp;
+        int mv;
 
         if (hpriv->flags & AHCI_HFLAG_MV_PATA) {
-                port_mmio = __ahci_port_base(host, 4);
+                if (pdev->device == 0x6121)
+                        mv = 2;
+                else
+                        mv = 4;
+                port_mmio = __ahci_port_base(host, mv);
 
                 writel(0, port_mmio + PORT_IRQ_MASK);