diff options
Diffstat (limited to 'drivers/usb/host/ehci-hcd.c')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 36 |
1 files changed, 30 insertions, 6 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 7d03549c3339..34f4f4c08747 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -127,6 +127,8 @@ timer_action(struct ehci_hcd *ehci, enum ehci_timer_action action) switch (action) { case TIMER_IO_WATCHDOG: + if (!ehci->need_io_watchdog) + return; t = EHCI_IO_JIFFIES; break; case TIMER_ASYNC_OFF: @@ -247,6 +249,12 @@ static int ehci_reset (struct ehci_hcd *ehci) retval = handshake (ehci, &ehci->regs->command, CMD_RESET, 0, 250 * 1000); + if (ehci->has_hostpc) { + ehci_writel(ehci, USBMODE_EX_HC | USBMODE_EX_VBPS, + (u32 __iomem *)(((u8 *)ehci->regs) + USBMODE_EX)); + ehci_writel(ehci, TXFIFO_DEFAULT, + (u32 __iomem *)(((u8 *)ehci->regs) + TXFILLTUNING)); + } if (retval) return retval; @@ -505,9 +513,14 @@ static int ehci_init(struct usb_hcd *hcd) u32 temp; int retval; u32 hcc_params; + struct ehci_qh_hw *hw; spin_lock_init(&ehci->lock); + /* + * keep io watchdog by default, those good HCDs could turn off it later + */ + ehci->need_io_watchdog = 1; init_timer(&ehci->watchdog); ehci->watchdog.function = ehci_watchdog; ehci->watchdog.data = (unsigned long) ehci; @@ -544,12 +557,13 @@ static int ehci_init(struct usb_hcd *hcd) * from automatically advancing to the next td after short reads. */ ehci->async->qh_next.qh = NULL; - ehci->async->hw_next = QH_NEXT(ehci, ehci->async->qh_dma); - ehci->async->hw_info1 = cpu_to_hc32(ehci, QH_HEAD); - ehci->async->hw_token = cpu_to_hc32(ehci, QTD_STS_HALT); - ehci->async->hw_qtd_next = EHCI_LIST_END(ehci); + hw = ehci->async->hw; + hw->hw_next = QH_NEXT(ehci, ehci->async->qh_dma); + hw->hw_info1 = cpu_to_hc32(ehci, QH_HEAD); + hw->hw_token = cpu_to_hc32(ehci, QTD_STS_HALT); + hw->hw_qtd_next = EHCI_LIST_END(ehci); ehci->async->qh_state = QH_STATE_LINKED; - ehci->async->hw_alt_next = QTD_NEXT(ehci, ehci->async->dummy->qtd_dma); + hw->hw_alt_next = QTD_NEXT(ehci, ehci->async->dummy->qtd_dma); /* clear interrupt enables, set irq latency */ if (log2_irq_thresh < 0 || log2_irq_thresh > 6) @@ -978,7 +992,7 @@ rescan: /* endpoints can be iso streams. for now, we don't * accelerate iso completions ... so spin a while. */ - if (qh->hw_info1 == 0) { + if (qh->hw->hw_info1 == 0) { ehci_vdbg (ehci, "iso delay\n"); goto idle_timeout; } @@ -1116,6 +1130,16 @@ MODULE_LICENSE ("GPL"); #define PLATFORM_DRIVER ixp4xx_ehci_driver #endif +#ifdef CONFIG_USB_W90X900_EHCI +#include "ehci-w90x900.c" +#define PLATFORM_DRIVER ehci_hcd_w90x900_driver +#endif + +#ifdef CONFIG_ARCH_AT91 +#include "ehci-atmel.c" +#define PLATFORM_DRIVER ehci_atmel_driver +#endif + #if !defined(PCI_DRIVER) && !defined(PLATFORM_DRIVER) && \ !defined(PS3_SYSTEM_BUS_DRIVER) && !defined(OF_PLATFORM_DRIVER) #error "missing bus glue for ehci-hcd" |