diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/arm/plat-mxc/usb_common.c | 43 |
1 files changed, 23 insertions, 20 deletions
diff --git a/arch/arm/plat-mxc/usb_common.c b/arch/arm/plat-mxc/usb_common.c index 17473a13fa95..6f865792bfc1 100644 --- a/arch/arm/plat-mxc/usb_common.c +++ b/arch/arm/plat-mxc/usb_common.c @@ -345,8 +345,8 @@ static void usbh2_set_serial_xcvr(void) USBCTRL &= ~(UCTRL_H2SIC_MASK); /* Disable bypass mode */ USBCTRL &= ~(UCTRL_H2PM); /* Power Mask */ USBCTRL &= ~UCTRL_H2OCPOL; /* OverCurrent Polarity is Low Active */ - USBCTRL |= UCTRL_H2WIE | /* Wakeup intr enable */ - UCTRL_IP_PUE_DOWN | /* ipp_pue_pulldwn_dpdm */ + USBCTRL &= ~UCTRL_H2WIE; /* Wakeup intr disable */ + USBCTRL |= UCTRL_IP_PUE_DOWN | /* ipp_pue_pulldwn_dpdm */ UCTRL_USBTE | /* USBT is enabled */ UCTRL_H2DT; /* Disable H2 TLL */ @@ -395,11 +395,13 @@ static void usbh2_set_serial_xcvr(void) */ static int usb_register_remote_wakeup(struct platform_device *pdev) { - pr_debug("%s: pdev=0x%p \n", __func__, pdev); - struct resource *res; int irq; + pr_debug("%s: pdev=0x%p \n", __func__, pdev); + if (!cpu_is_mx51()) + return -ECANCELED; + res = platform_get_resource(pdev, IORESOURCE_IRQ, 0); if (!res) { dev_err(&pdev->dev, @@ -513,7 +515,7 @@ void fsl_usb_host_uninit(struct fsl_usb2_platform_data *pdata) pdata->gpio_usb_inactive(); if (pdata->xcvr_type == PORTSC_PTS_SERIAL) { - /* Workaround an IC issue for 2.6.26 kernal: + /* Workaround an IC issue for ehci driver. * when turn off root hub port power, EHCI set * PORTSC reserved bits to be 0, but PTS with 0 * means UTMI interface, so here force the Host2 @@ -698,20 +700,19 @@ static void otg_set_utmi_xcvr(void) USB_PHY_CTR_FUNC2 &= ~USB_UTMI_PHYCTRL2_PLLDIV_MASK; USB_PHY_CTR_FUNC2 |= 0x01; } - if (!cpu_is_mx25()) { - /* Workaround an IC issue for 2.6.26 kernal: - * when turn off root hub port power, EHCI set - * PORTSC reserved bits to be 0, but PTW with 0 - * means 8 bits tranceiver width, here change - * it back to be 16 bits and do PHY diable and - * then enable. - */ - UOG_PORTSC1 |= PORTSC_PTW; - /* Enable UTMI interface in PHY control Reg */ - USB_PHY_CTR_FUNC &= ~USB_UTMI_PHYCTRL_UTMI_ENABLE; - USB_PHY_CTR_FUNC |= USB_UTMI_PHYCTRL_UTMI_ENABLE; - } + /* Workaround an IC issue for ehci driver: + * when turn off root hub port power, EHCI set + * PORTSC reserved bits to be 0, but PTW with 0 + * means 8 bits tranceiver width, here change + * it back to be 16 bits and do PHY diable and + * then enable. + */ + UOG_PORTSC1 |= PORTSC_PTW; + + /* Enable UTMI interface in PHY control Reg */ + USB_PHY_CTR_FUNC &= ~USB_UTMI_PHYCTRL_UTMI_ENABLE; + USB_PHY_CTR_FUNC |= USB_UTMI_PHYCTRL_UTMI_ENABLE; /* need to reset the controller here so that the ID pin * is correctly detected. @@ -840,7 +841,7 @@ void usb_host_set_wakeup(struct device *wkup_dev, bool para) struct fsl_usb2_platform_data *pdata = wkup_dev->platform_data; /* If this device may wakeup */ - if (device_may_wakeup(wkup_dev) && para) + if (device_may_wakeup(wkup_dev) && para) { if (!strcmp("Host 1", pdata->name)) { USBCTRL |= UCTRL_H1WIE; } else if (!strcmp("DR", pdata->name)) { @@ -848,13 +849,15 @@ void usb_host_set_wakeup(struct device *wkup_dev, bool para) /* Enable OTG ID Wakeup */ USBCTRL_HOST2 |= (1 << 5); } + } - if (!para) + if (!para) { if (!strcmp("Host 1", pdata->name)) USBCTRL &= ~UCTRL_H1WIE; else if (!strcmp("DR", pdata->name)) { USBCTRL &= ~UCTRL_OWIE; USBCTRL_HOST2 &= ~(1 << 5); } + } } EXPORT_SYMBOL(usb_host_set_wakeup); |