diff options
Diffstat (limited to 'drivers/usb/imx/imx-usb-phy.c')
| -rw-r--r-- | drivers/usb/imx/imx-usb-phy.c | 35 |
1 files changed, 18 insertions, 17 deletions
diff --git a/drivers/usb/imx/imx-usb-phy.c b/drivers/usb/imx/imx-usb-phy.c index 274153bd58..df7e192d3a 100644 --- a/drivers/usb/imx/imx-usb-phy.c +++ b/drivers/usb/imx/imx-usb-phy.c @@ -24,16 +24,17 @@ #include <linux/clk.h> #include <linux/err.h> -#define SET 0x4 -#define CLR 0x8 - -#define USBPHY_CTRL 0x30 +#define HW_USBPHY_PWD 0x00 +#define HW_USBPHY_TX 0x10 +#define HW_USBPHY_CTRL 0x30 +#define HW_USBPHY_CTRL_SET 0x34 +#define HW_USBPHY_CTRL_CLR 0x38 #define USBPHY_CTRL_SFTRST (1 << 31) #define USBPHY_CTRL_CLKGATE (1 << 30) -#define USBPHY_CTRL_ENUTMILEVEL3 (1 << 15) -#define USBPHY_CTRL_ENUTMILEVEL2 (1 << 14) -#define USBPHY_CTRL_ENHOSTDISCONDETECT (1 << 1) +#define BM_USBPHY_CTRL_ENUTMILEVEL3 BIT(15) +#define BM_USBPHY_CTRL_ENUTMILEVEL2 BIT(14) +#define BM_USBPHY_CTRL_ENHOSTDISCONDETECT BIT(1) struct imx_usbphy { struct usb_phy usb_phy; @@ -50,20 +51,20 @@ static int imx_usbphy_phy_init(struct phy *phy) clk_enable(imxphy->clk); /* reset usbphy */ - writel(USBPHY_CTRL_SFTRST, imxphy->base + USBPHY_CTRL + SET); + writel(USBPHY_CTRL_SFTRST, imxphy->base + HW_USBPHY_CTRL_SET); udelay(10); /* clr reset and clkgate */ writel(USBPHY_CTRL_SFTRST | USBPHY_CTRL_CLKGATE, - imxphy->base + USBPHY_CTRL + CLR); + imxphy->base + HW_USBPHY_CTRL_CLR); - /* clr all pwd bits => power up phy */ - writel(0xffffffff, imxphy->base + CLR); + /* Power up the PHY */ + writel(0, imxphy->base + HW_USBPHY_PWD); /* set utmilvl2/3 */ - writel(USBPHY_CTRL_ENUTMILEVEL3 | USBPHY_CTRL_ENUTMILEVEL2, - imxphy->base + USBPHY_CTRL + SET); + writel(BM_USBPHY_CTRL_ENUTMILEVEL3 | BM_USBPHY_CTRL_ENUTMILEVEL2, + imxphy->base + HW_USBPHY_CTRL_SET); return 0; } @@ -74,8 +75,8 @@ static int imx_usbphy_notify_connect(struct usb_phy *phy, struct imx_usbphy *imxphy = container_of(phy, struct imx_usbphy, usb_phy); if (speed == USB_SPEED_HIGH) { - writel(USBPHY_CTRL_ENHOSTDISCONDETECT, - imxphy->base + USBPHY_CTRL + SET); + writel(BM_USBPHY_CTRL_ENHOSTDISCONDETECT, + imxphy->base + HW_USBPHY_CTRL_SET); } return 0; @@ -86,8 +87,8 @@ static int imx_usbphy_notify_disconnect(struct usb_phy *phy, { struct imx_usbphy *imxphy = container_of(phy, struct imx_usbphy, usb_phy); - writel(USBPHY_CTRL_ENHOSTDISCONDETECT, - imxphy->base + USBPHY_CTRL + CLR); + writel(BM_USBPHY_CTRL_ENHOSTDISCONDETECT, + imxphy->base + HW_USBPHY_CTRL_CLR); return 0; } |