Revert to Fedora kernel-2.6.17-1.2187_FC5 patched with vs2.0.2.1; there are too many...

[linux-2.6.git] / drivers / usb / host / ehci-pci.c

diff --git a/drivers/usb/host/ehci-pci.c b/drivers/usb/host/ehci-pci.c
index cadffac..a1bd2be 100644 (file)
--- a/drivers/usb/host/ehci-pci.c
+++ b/drivers/usb/host/ehci-pci.c
@@ -76,30 +76,6 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
        dbg_hcs_params(ehci, "reset");
        dbg_hcc_params(ehci, "reset");
 
-        /* ehci_init() causes memory for DMA transfers to be
-         * allocated.  Thus, any vendor-specific workarounds based on
-         * limiting the type of memory used for DMA transfers must
-         * happen before ehci_init() is called. */
-       switch (pdev->vendor) {
-       case PCI_VENDOR_ID_NVIDIA:
-               /* NVidia reports that certain chips don't handle
-                * QH, ITD, or SITD addresses above 2GB.  (But TD,
-                * data buffer, and periodic schedule are normal.)
-                */
-               switch (pdev->device) {
-               case 0x003c:    /* MCP04 */
-               case 0x005b:    /* CK804 */
-               case 0x00d8:    /* CK8 */
-               case 0x00e8:    /* CK8S */
-                       if (pci_set_consistent_dma_mask(pdev,
-                                               DMA_31BIT_MASK) < 0)
-                               ehci_warn(ehci, "can't enable NVidia "
-                                       "workaround for >2GB RAM\n");
-                       break;
-               }
-               break;
-       }
-
        /* cache this readonly data; minimize chip reads */
        ehci->hcs_params = readl(&ehci->caps->hcs_params);
 
@@ -112,6 +88,8 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
        if (retval)
                return retval;
 
+       /* NOTE:  only the parts below this line are PCI-specific */
+
        switch (pdev->vendor) {
        case PCI_VENDOR_ID_TDI:
                if (pdev->device == PCI_DEVICE_ID_TDI_EHCI) {
@@ -129,6 +107,19 @@ static int ehci_pci_setup(struct usb_hcd *hcd)
                break;
        case PCI_VENDOR_ID_NVIDIA:
                switch (pdev->device) {
+               /* NVidia reports that certain chips don't handle
+                * QH, ITD, or SITD addresses above 2GB.  (But TD,
+                * data buffer, and periodic schedule are normal.)
+                */
+               case 0x003c:    /* MCP04 */
+               case 0x005b:    /* CK804 */
+               case 0x00d8:    /* CK8 */
+               case 0x00e8:    /* CK8S */
+                       if (pci_set_consistent_dma_mask(pdev,
+                                               DMA_31BIT_MASK) < 0)
+                               ehci_warn(ehci, "can't enable NVidia "
+                                       "workaround for >2GB RAM\n");
+                       break;
                /* Some NForce2 chips have problems with selective suspend;
                 * fixed in newer silicon.
                 */
@@ -379,3 +370,23 @@ static struct pci_driver ehci_pci_driver = {
        .resume =       usb_hcd_pci_resume,
 #endif
 };
+
+static int __init ehci_hcd_pci_init(void)
+{
+       if (usb_disabled())
+               return -ENODEV;
+
+       pr_debug("%s: block sizes: qh %Zd qtd %Zd itd %Zd sitd %Zd\n",
+               hcd_name,
+               sizeof(struct ehci_qh), sizeof(struct ehci_qtd),
+               sizeof(struct ehci_itd), sizeof(struct ehci_sitd));
+
+       return pci_register_driver(&ehci_pci_driver);
+}
+module_init(ehci_hcd_pci_init);
+
+static void __exit ehci_hcd_pci_cleanup(void)
+{
+       pci_unregister_driver(&ehci_pci_driver);
+}
+module_exit(ehci_hcd_pci_cleanup);