diff options
Diffstat (limited to 'drivers/usb/host/ehci-hcd.c')
| -rw-r--r-- | drivers/usb/host/ehci-hcd.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/usb/host/ehci-hcd.c b/drivers/usb/host/ehci-hcd.c index 1cee158b01..3f7bc2cef6 100644 --- a/drivers/usb/host/ehci-hcd.c +++ b/drivers/usb/host/ehci-hcd.c @@ -205,6 +205,14 @@ static inline void ehci_invalidate_dcache(struct QH *qh) } #endif /* CONFIG_EHCI_DCACHE */ +void __ehci_powerup_fixup(uint32_t *status_reg, uint32_t *reg) +{ + mdelay(50); +} + +void ehci_powerup_fixup(uint32_t *status_reg, uint32_t *reg) + __attribute__((weak, alias("__ehci_powerup_fixup"))); + static int handshake(uint32_t *ptr, uint32_t mask, uint32_t done, int usec) { uint32_t result; @@ -713,8 +721,8 @@ ehci_submit_root(struct usb_device *dev, unsigned long pipe, void *buffer, * usb 2.0 specification say 50 ms resets on * root */ - wait_ms(50); - /* terminate the reset */ + ehci_powerup_fixup(status_reg, ®); + ehci_writel(status_reg, reg & ~EHCI_PS_PR); /* * A host controller must terminate the reset |