diff options
Diffstat (limited to 'drivers/usb/chipidea/usbmisc_imx.c')
| -rw-r--r-- | drivers/usb/chipidea/usbmisc_imx.c | 66 |
1 files changed, 66 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index 5ddab30ee240..fcea4eb36eee 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -72,6 +72,14 @@ #define VF610_OVER_CUR_DIS BIT(7) +#define MX7D_USBNC_USB_CTRL2 0x4 +#define MX7D_USB_VBUS_WAKEUP_SOURCE_MASK 0x3 +#define MX7D_USB_VBUS_WAKEUP_SOURCE(v) (v << 0) +#define MX7D_USB_VBUS_WAKEUP_SOURCE_VBUS MX7D_USB_VBUS_WAKEUP_SOURCE(0) +#define MX7D_USB_VBUS_WAKEUP_SOURCE_AVALID MX7D_USB_VBUS_WAKEUP_SOURCE(1) +#define MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID MX7D_USB_VBUS_WAKEUP_SOURCE(2) +#define MX7D_USB_VBUS_WAKEUP_SOURCE_SESS_END MX7D_USB_VBUS_WAKEUP_SOURCE(3) + struct usbmisc_ops { /* It's called once when probe a usb device */ int (*init)(struct imx_usbmisc_data *data); @@ -324,6 +332,55 @@ static int usbmisc_vf610_init(struct imx_usbmisc_data *data) return 0; } +static int usbmisc_imx7d_set_wakeup + (struct imx_usbmisc_data *data, bool enabled) +{ + struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); + unsigned long flags; + u32 val; + u32 wakeup_setting = (MX6_BM_WAKEUP_ENABLE | + MX6_BM_VBUS_WAKEUP | MX6_BM_ID_WAKEUP); + + spin_lock_irqsave(&usbmisc->lock, flags); + val = readl(usbmisc->base); + if (enabled) { + writel(val | wakeup_setting, usbmisc->base); + } else { + if (val & MX6_BM_WAKEUP_INTR) + dev_dbg(data->dev, "wakeup int\n"); + writel(val & ~wakeup_setting, usbmisc->base); + } + spin_unlock_irqrestore(&usbmisc->lock, flags); + + return 0; +} + +static int usbmisc_imx7d_init(struct imx_usbmisc_data *data) +{ + struct imx_usbmisc *usbmisc = dev_get_drvdata(data->dev); + unsigned long flags; + u32 reg; + + if (data->index >= 1) + return -EINVAL; + + spin_lock_irqsave(&usbmisc->lock, flags); + if (data->disable_oc) { + reg = readl(usbmisc->base); + writel(reg | MX6_BM_OVER_CUR_DIS, usbmisc->base); + } + + reg = readl(usbmisc->base + MX7D_USBNC_USB_CTRL2); + reg &= ~MX7D_USB_VBUS_WAKEUP_SOURCE_MASK; + writel(reg | MX7D_USB_VBUS_WAKEUP_SOURCE_BVALID, + usbmisc->base + MX7D_USBNC_USB_CTRL2); + spin_unlock_irqrestore(&usbmisc->lock, flags); + + usbmisc_imx7d_set_wakeup(data, false); + + return 0; +} + static const struct usbmisc_ops imx25_usbmisc_ops = { .init = usbmisc_imx25_init, .post = usbmisc_imx25_post, @@ -351,6 +408,11 @@ static const struct usbmisc_ops imx6sx_usbmisc_ops = { .init = usbmisc_imx6sx_init, }; +static const struct usbmisc_ops imx7d_usbmisc_ops = { + .init = usbmisc_imx7d_init, + .set_wakeup = usbmisc_imx7d_set_wakeup, +}; + int imx_usbmisc_init(struct imx_usbmisc_data *data) { struct imx_usbmisc *usbmisc; @@ -426,6 +488,10 @@ static const struct of_device_id usbmisc_imx_dt_ids[] = { .compatible = "fsl,imx6sx-usbmisc", .data = &imx6sx_usbmisc_ops, }, + { + .compatible = "fsl,imx6ul-usbmisc", + .data = &imx6sx_usbmisc_ops, + }, { /* sentinel */ } }; MODULE_DEVICE_TABLE(of, usbmisc_imx_dt_ids); |