ahci: change the Device IDs of nvidia MCP7B AHCI controller in ahci.c

[linux-2.6] / drivers / ata / ahci.c

diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 986e3324e3026230bee39dbf9b0001fe23c15c64..544b7d6c617c848722d522955a1370d5a71d60e0 100644 (file)
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -358,7 +358,7 @@ 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_32BIT_ONLY | AHCI_HFLAG_NO_MSI |
                                 AHCI_HFLAG_SECT255 | AHCI_HFLAG_NO_PMP),
                .flags          = AHCI_FLAG_COMMON,
                .pio_mask       = 0x1f, /* pio0-4 */
@@ -502,10 +502,10 @@ static const struct pci_device_id ahci_pci_tbl[] = {
        { PCI_VDEVICE(NVIDIA, 0x0bcd), board_ahci },            /* MCP7B */
        { PCI_VDEVICE(NVIDIA, 0x0bce), board_ahci },            /* MCP7B */
        { PCI_VDEVICE(NVIDIA, 0x0bcf), board_ahci },            /* MCP7B */
-       { PCI_VDEVICE(NVIDIA, 0x0bd0), board_ahci },            /* MCP7B */
-       { PCI_VDEVICE(NVIDIA, 0x0bd1), board_ahci },            /* MCP7B */
-       { PCI_VDEVICE(NVIDIA, 0x0bd2), board_ahci },            /* MCP7B */
-       { PCI_VDEVICE(NVIDIA, 0x0bd3), 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 */
 
        /* SiS */
        { PCI_VDEVICE(SI, 0x1184), board_ahci }, /* SiS 966 */
@@ -556,16 +556,27 @@ static inline void __iomem *ahci_port_base(struct ata_port *ap)
 
 static void ahci_enable_ahci(void __iomem *mmio)
 {
+       int i;
        u32 tmp;
 
        /* turn on AHCI_EN */
        tmp = readl(mmio + HOST_CTL);
-       if (!(tmp & HOST_AHCI_EN)) {
+       if (tmp & HOST_AHCI_EN)
+               return;
+
+       /* Some controllers need AHCI_EN to be written multiple times.
+        * Try a few times before giving up.
+        */
+       for (i = 0; i < 5; i++) {
                tmp |= HOST_AHCI_EN;
                writel(tmp, mmio + HOST_CTL);
                tmp = readl(mmio + HOST_CTL);   /* flush && sanity check */
-               WARN_ON(!(tmp & HOST_AHCI_EN));
+               if (tmp & HOST_AHCI_EN)
+                       return;
+               msleep(10);
        }
+
+       WARN_ON(1);
 }
 
 /**
@@ -1256,9 +1267,7 @@ static int ahci_check_ready(struct ata_link *link)
        void __iomem *port_mmio = ahci_port_base(link->ap);
        u8 status = readl(port_mmio + PORT_TFDATA) & 0xFF;
 
-       if (!(status & ATA_BUSY))
-               return 1;
-       return 0;
+       return ata_check_ready(status);
 }
 
 static int ahci_softreset(struct ata_link *link, unsigned int *class,