diff options
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/usb/host/ehci-mx6.c | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c index acd68fe..367b0ae 100644 --- a/drivers/usb/host/ehci-mx6.c +++ b/drivers/usb/host/ehci-mx6.c @@ -257,6 +257,29 @@ int usb_phy_mode(int port) } #endif +static void ehci_mx6_powerup_fixup(struct ehci_ctrl *ctrl, uint32_t *status_reg, + uint32_t *reg) +{ + uint32_t result; + int usec = 2000; + + mdelay(50); + + do { + result = ehci_readl(status_reg); + udelay(5); + if (!(result & EHCI_PS_PR)) + break; + usec--; + } while (usec > 0); + + *reg = ehci_readl(status_reg); +} + +static const struct ehci_ops mx6_ehci_ops = { + .powerup_fixup = ehci_mx6_powerup_fixup, +}; + static void usb_oc_config(int index) { #if defined(CONFIG_MX6) @@ -355,6 +378,8 @@ int ehci_hcd_init(int index, enum usb_init_type init, enable_usboh3_clk(1); mdelay(1); + ehci_set_controller_priv(index, NULL, &mx6_ehci_ops); + /* Do board specific initialization */ board_ehci_hcd_init(index); |