diff options
| -rw-r--r-- | drivers/usb/chipidea/usbmisc_imx.c | 10 |
1 files changed, 10 insertions, 0 deletions
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c index 419b8959d150..85293b8b1df9 100644 --- a/drivers/usb/chipidea/usbmisc_imx.c +++ b/drivers/usb/chipidea/usbmisc_imx.c @@ -46,11 +46,14 @@ #define MX27_OTG_PM_BIT BIT(24) #define MX53_USB_OTG_PHY_CTRL_0_OFFSET 0x08 +#define MX53_USB_OTG_PHY_CTRL_1_OFFSET 0x0c #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 MX53_USB_PHYCTRL1_PLLDIV_MASK 0x3 +#define MX53_USB_PLL_DIV_24_MHZ 0x01 #define MX6_BM_OVER_CUR_DIS BIT(7) @@ -164,6 +167,13 @@ static int usbmisc_imx53_init(struct imx_usbmisc_data *data) if (data->index > 3) return -EINVAL; + /* Select a 24 MHz reference clock for the PHY */ + reg = usbmisc->base + MX53_USB_OTG_PHY_CTRL_1_OFFSET; + val = readl(reg); + val &= ~MX53_USB_PHYCTRL1_PLLDIV_MASK; + val |= MX53_USB_PLL_DIV_24_MHZ; + writel(val, usbmisc->base + MX53_USB_OTG_PHY_CTRL_1_OFFSET); + if (data->disable_oc) { spin_lock_irqsave(&usbmisc->lock, flags); switch (data->index) { |