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usb: chipidea: usbmisc: add mx53 support

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This adds mx53 as the next user of the usbmisc driver and makes it
possible to disable the overcurrent-detection of the internal phy.

Signed-off-by: Michael Grzeschik <m.grzeschik@pengutronix.de>
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
[Alex: fixed another set of line-too-long and void pointer cast]
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Michael Grzeschik
2013-03-30 12:54:00 +02:00
committed by Greg Kroah-Hartman
parent e609108a5b
commit f0c910b63c
1 changed files with 54 additions and 0 deletions
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drivers/usb/chipidea/usbmisc_imx.c
+54
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@@ -19,6 +19,13 @@
#define USB_DEV_MAX 4 #define USB_DEV_MAX 4
#define MX53_USB_OTG_PHY_CTRL_0_OFFSET 0x08
#define MX53_USB_UH2_CTRL_OFFSET 0x14
#define MX53_USB_UH3_CTRL_OFFSET 0x18
#define MX53_BM_OVER_CUR_DIS_H1 BIT(5)
#define MX53_BM_OVER_CUR_DIS_OTG BIT(8)
#define MX53_BM_OVER_CUR_DIS_UHx BIT(30)
#define MX6_BM_OVER_CUR_DIS BIT(7) #define MX6_BM_OVER_CUR_DIS BIT(7)
struct imx_usbmisc { struct imx_usbmisc {
@@ -52,6 +59,45 @@ static struct usbmisc_usb_device *get_usbdev(struct device *dev)
return &usbmisc->usbdev[i]; return &usbmisc->usbdev[i];
} }
static int usbmisc_imx53_init(struct device *dev)
{
struct usbmisc_usb_device *usbdev;
void __iomem *reg = NULL;
unsigned long flags;
u32 val = 0;
usbdev = get_usbdev(dev);
if (IS_ERR(usbdev))
return PTR_ERR(usbdev);
if (usbdev->disable_oc) {
spin_lock_irqsave(&usbmisc->lock, flags);
switch (usbdev->index) {
case 0:
reg = usbmisc->base + MX53_USB_OTG_PHY_CTRL_0_OFFSET;
val = readl(reg) | MX53_BM_OVER_CUR_DIS_OTG;
break;
case 1:
reg = usbmisc->base + MX53_USB_OTG_PHY_CTRL_0_OFFSET;
val = readl(reg) | MX53_BM_OVER_CUR_DIS_H1;
break;
case 2:
reg = usbmisc->base + MX53_USB_UH2_CTRL_OFFSET;
val = readl(reg) | MX53_BM_OVER_CUR_DIS_UHx;
break;
case 3:
reg = usbmisc->base + MX53_USB_UH3_CTRL_OFFSET;
val = readl(reg) | MX53_BM_OVER_CUR_DIS_UHx;
break;
}
if (reg && val)
writel(val, reg);
spin_unlock_irqrestore(&usbmisc->lock, flags);
}
return 0;
}
static int usbmisc_imx6q_init(struct device *dev) static int usbmisc_imx6q_init(struct device *dev)
{ {
@@ -74,11 +120,19 @@ static int usbmisc_imx6q_init(struct device *dev)
return 0; return 0;
} }
static const struct usbmisc_ops imx53_usbmisc_ops = {
.init = usbmisc_imx53_init,
};
static const struct usbmisc_ops imx6q_usbmisc_ops = { static const struct usbmisc_ops imx6q_usbmisc_ops = {
.init = usbmisc_imx6q_init, .init = usbmisc_imx6q_init,
}; };
static const struct of_device_id usbmisc_imx_dt_ids[] = { static const struct of_device_id usbmisc_imx_dt_ids[] = {
{
.compatible = "fsl,imx53-usbmisc",
.data = &imx53_usbmisc_ops,
},
{ {
.compatible = "fsl,imx6q-usbmisc", .compatible = "fsl,imx6q-usbmisc",
.data = &imx6q_usbmisc_ops, .data = &imx6q_usbmisc_ops,