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-rw-r--r--drivers/usb/host/Kconfig2
-rw-r--r--drivers/usb/host/ehci-hcd.c5
2 files changed, 5 insertions, 2 deletions
diff --git a/drivers/usb/host/Kconfig b/drivers/usb/host/Kconfig
index 177e78ed241b..49a91c5ee51b 100644
--- a/drivers/usb/host/Kconfig
+++ b/drivers/usb/host/Kconfig
@@ -156,7 +156,7 @@ config USB_OHCI_HCD_PCI
156 156
157config USB_OHCI_HCD_SSB 157config USB_OHCI_HCD_SSB
158 bool "OHCI support for Broadcom SSB OHCI core" 158 bool "OHCI support for Broadcom SSB OHCI core"
159 depends on USB_OHCI_HCD && (SSB = y || SSB = CONFIG_USB_OHCI_HCD) && EXPERIMENTAL 159 depends on USB_OHCI_HCD && (SSB = y || SSB = USB_OHCI_HCD) && EXPERIMENTAL
160 default n 160 default n
161 ---help--- 161 ---help---
162 Support for the Sonics Silicon Backplane (SSB) attached 162 Support for the Sonics Silicon Backplane (SSB) attached
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c
index c1514442883e..5f2d74ed5ad7 100644
--- a/drivers/usb/host/ehci-hcd.c
+++ b/drivers/usb/host/ehci-hcd.c
@@ -575,12 +575,15 @@ static int ehci_run (struct usb_hcd *hcd)
575 * from the companions to the EHCI controller. If any of the 575 * from the companions to the EHCI controller. If any of the
576 * companions are in the middle of a port reset at the time, it 576 * companions are in the middle of a port reset at the time, it
577 * could cause trouble. Write-locking ehci_cf_port_reset_rwsem 577 * could cause trouble. Write-locking ehci_cf_port_reset_rwsem
578 * guarantees that no resets are in progress. 578 * guarantees that no resets are in progress. After we set CF,
579 * a short delay lets the hardware catch up; new resets shouldn't
580 * be started before the port switching actions could complete.
579 */ 581 */
580 down_write(&ehci_cf_port_reset_rwsem); 582 down_write(&ehci_cf_port_reset_rwsem);
581 hcd->state = HC_STATE_RUNNING; 583 hcd->state = HC_STATE_RUNNING;
582 ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag); 584 ehci_writel(ehci, FLAG_CF, &ehci->regs->configured_flag);
583 ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */ 585 ehci_readl(ehci, &ehci->regs->command); /* unblock posted writes */
586 msleep(5);
584 up_write(&ehci_cf_port_reset_rwsem); 587 up_write(&ehci_cf_port_reset_rwsem);
585 588
586 temp = HC_VERSION(ehci_readl(ehci, &ehci->caps->hc_capbase)); 589 temp = HC_VERSION(ehci_readl(ehci, &ehci->caps->hc_capbase));