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usb: chipidea: imx: add usb support for imx7d

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Add imx7d usb support.

Signed-off-by: Peter Chen <peter.chen@freescale.com>
Signed-off-by: Li Jun <jun.li@freescale.com>
This commit is contained in:
Peter Chen
2015-09-09 16:33:02 +08:00
parent 17aa4450f8
commit 5cb377c52f
2 changed files with 67 additions and 0 deletions
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62
drivers/usb/chipidea/usbmisc_imx.c
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@@ -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;