diff options
Diffstat (limited to 'drivers/usb/host/ehci-omap.c')
-rw-r--r-- | drivers/usb/host/ehci-omap.c | 104 |
1 files changed, 51 insertions, 53 deletions
diff --git a/drivers/usb/host/ehci-omap.c b/drivers/usb/host/ehci-omap.c index 6e15fc87cf6..6133d93808d 100644 --- a/drivers/usb/host/ehci-omap.c +++ b/drivers/usb/host/ehci-omap.c @@ -145,6 +145,56 @@ static void omap_ehci_soft_phy_reset(struct platform_device *pdev, u8 port) } } +static int omap_ehci_init(struct usb_hcd *hcd) +{ + struct ehci_hcd *ehci = hcd_to_ehci(hcd); + int rc; + struct ehci_hcd_omap_platform_data *pdata; + + pdata = hcd->self.controller->platform_data; + if (pdata->phy_reset) { + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_request_one(pdata->reset_gpio_port[0], + GPIOF_OUT_INIT_LOW, "USB1 PHY reset"); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_request_one(pdata->reset_gpio_port[1], + GPIOF_OUT_INIT_LOW, "USB2 PHY reset"); + + /* Hold the PHY in RESET for enough time till DIR is high */ + udelay(10); + } + + /* Soft reset the PHY using PHY reset command over ULPI */ + if (pdata->port_mode[0] == OMAP_EHCI_PORT_MODE_PHY) + omap_ehci_soft_phy_reset(pdev, 0); + if (pdata->port_mode[1] == OMAP_EHCI_PORT_MODE_PHY) + omap_ehci_soft_phy_reset(pdev, 1); + + /* we know this is the memory we want, no need to ioremap again */ + ehci->caps = hcd->regs; + + rc = ehci_setup(hcd); + + if (pdata->phy_reset) { + /* Hold the PHY in RESET for enough time till + * PHY is settled and ready + */ + udelay(10); + + if (gpio_is_valid(pdata->reset_gpio_port[0])) + gpio_set_value_cansleep(pdata->reset_gpio_port[0], 1); + + if (gpio_is_valid(pdata->reset_gpio_port[1])) + gpio_set_value_cansleep(pdata->reset_gpio_port[1], 1); + } + + /* root ports should always stay powered */ + ehci_port_power(ehci, 1); + + return rc; +} + static int omap_ehci_hub_control( struct usb_hcd *hcd, u16 typeReq, @@ -219,7 +269,6 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) struct resource *res; struct usb_hcd *hcd; void __iomem *regs; - struct ehci_hcd *omap_ehci; int ret = -ENODEV; int irq; int i; @@ -281,19 +330,6 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) } } - if (pdata->phy_reset) { - if (gpio_is_valid(pdata->reset_gpio_port[0])) - gpio_request_one(pdata->reset_gpio_port[0], - GPIOF_OUT_INIT_LOW, "USB1 PHY reset"); - - if (gpio_is_valid(pdata->reset_gpio_port[1])) - gpio_request_one(pdata->reset_gpio_port[1], - GPIOF_OUT_INIT_LOW, "USB2 PHY reset"); - - /* Hold the PHY in RESET for enough time till DIR is high */ - udelay(10); - } - pm_runtime_enable(dev); pm_runtime_get_sync(dev); @@ -309,50 +345,12 @@ static int ehci_hcd_omap_probe(struct platform_device *pdev) ehci_write(regs, EHCI_INSNREG04, EHCI_INSNREG04_DISABLE_UNSUSPEND); - /* Soft reset the PHY using PHY reset command over ULPI */ - if (pdata->port_mode[0] == OMAP_EHCI_PORT_MODE_PHY) - omap_ehci_soft_phy_reset(pdev, 0); - if (pdata->port_mode[1] == OMAP_EHCI_PORT_MODE_PHY) - omap_ehci_soft_phy_reset(pdev, 1); - - omap_ehci = hcd_to_ehci(hcd); - omap_ehci->sbrn = 0x20; - - /* we know this is the memory we want, no need to ioremap again */ - omap_ehci->caps = hcd->regs; - omap_ehci->regs = hcd->regs - + HC_LENGTH(ehci, readl(&omap_ehci->caps->hc_capbase)); - - dbg_hcs_params(omap_ehci, "reset"); - dbg_hcc_params(omap_ehci, "reset"); - - /* cache this readonly data; minimize chip reads */ - omap_ehci->hcs_params = readl(&omap_ehci->caps->hcs_params); - - ehci_reset(omap_ehci); - - if (pdata->phy_reset) { - /* Hold the PHY in RESET for enough time till - * PHY is settled and ready - */ - udelay(10); - - if (gpio_is_valid(pdata->reset_gpio_port[0])) - gpio_set_value_cansleep(pdata->reset_gpio_port[0], 1); - - if (gpio_is_valid(pdata->reset_gpio_port[1])) - gpio_set_value_cansleep(pdata->reset_gpio_port[1], 1); - } - ret = usb_add_hcd(hcd, irq, IRQF_SHARED); if (ret) { dev_err(dev, "failed to add hcd with err %d\n", ret); goto err_pm_runtime; } - /* root ports should always stay powered */ - ehci_port_power(omap_ehci, 1); - /* get clocks */ utmi_p1_fck = clk_get(dev, "utmi_p1_gfclk"); if (IS_ERR(utmi_p1_fck)) { @@ -512,7 +510,7 @@ static const struct hc_driver ehci_omap_hc_driver = { /* * basic lifecycle operations */ - .reset = ehci_init, + .reset = omap_ehci_init, .start = ehci_run, .stop = ehci_stop, .shutdown = ehci_shutdown, |