1 files changed, 20 insertions, 3 deletions

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 966ab401e52..6a4a2a25d97 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -90,6 +90,7 @@ enum {
         board_ahci_mv           = 4,
         board_ahci_sb700        = 5,
         board_ahci_mcp65        = 6,
+        board_ahci_nopmp        = 7,
 
         /* global controller registers */
         HOST_CAP                = 0x00, /* host capabilities */
@@ -401,6 +402,14 @@ static const struct ata_port_info ahci_port_info[] = {
                 .udma_mask      = ATA_UDMA6,
                 .port_ops       = &ahci_ops,
         },
+        /* board_ahci_nopmp */
+        {
+                AHCI_HFLAGS     (AHCI_HFLAG_NO_PMP),
+                .flags          = AHCI_FLAG_COMMON,
+                .pio_mask       = 0x1f, /* pio0-4 */
+                .udma_mask      = ATA_UDMA6,
+                .port_ops       = &ahci_ops,
+        },
 };
 
 static const struct pci_device_id ahci_pci_tbl[] = {
@@ -525,9 +534,9 @@ static const struct pci_device_id ahci_pci_tbl[] = {
         { PCI_VDEVICE(NVIDIA, 0x0bc7), board_ahci },            /* MCP7B */
 
         /* SiS */
-        { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
-        { PCI_VDEVICE(SI, 0x1185), board_ahci }, /* SiS 966 */
-        { PCI_VDEVICE(SI, 0x0186), board_ahci }, /* SiS 968 */
+        { PCI_VDEVICE(SI, 0x1184), board_ahci_nopmp },          /* SiS 966 */
+        { PCI_VDEVICE(SI, 0x1185), board_ahci_nopmp },          /* SiS 968 */
+        { PCI_VDEVICE(SI, 0x0186), board_ahci_nopmp },          /* SiS 968 */
 
         /* Marvell */
         { PCI_VDEVICE(MARVELL, 0x6145), board_ahci_mv },        /* 6145 */
@@ -653,6 +662,14 @@ static void ahci_save_initial_config(struct pci_dev *pdev,
                 cap &= ~HOST_CAP_PMP;
         }
 
+        if (pdev->vendor == PCI_VENDOR_ID_JMICRON && pdev->device == 0x2361 &&
+            port_map != 1) {
+                dev_printk(KERN_INFO, &pdev->dev,
+                           "JMB361 has only one port, port_map 0x%x -> 0x%x\n",
+                           port_map, 1);
+                port_map = 1;
+        }
+
         /*
          * Temporary Marvell 6145 hack: PATA port presence
          * is asserted through the standard AHCI port