diff options
Diffstat (limited to 'drivers/usb/phy/phy-mxs-usb.c')
| -rw-r--r-- | drivers/usb/phy/phy-mxs-usb.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c index 1b1bb0ad40c3..6fa16ab31e2e 100644 --- a/drivers/usb/phy/phy-mxs-usb.c +++ b/drivers/usb/phy/phy-mxs-usb.c @@ -63,6 +63,7 @@ #define ANADIG_USB1_CHRG_DETECT_SET 0x1b4 #define ANADIG_USB1_CHRG_DETECT_CLR 0x1b8 +#define ANADIG_USB2_CHRG_DETECT_SET 0x214 #define ANADIG_USB1_CHRG_DETECT_EN_B BIT(20) #define ANADIG_USB1_CHRG_DETECT_CHK_CHRG_B BIT(19) #define ANADIG_USB1_CHRG_DETECT_CHK_CONTACT BIT(18) @@ -250,6 +251,19 @@ static int mxs_phy_hw_init(struct mxs_phy *mxs_phy) if (mxs_phy->data->flags & MXS_PHY_NEED_IP_FIX) writel(BM_USBPHY_IP_FIX, base + HW_USBPHY_IP_SET); + if (mxs_phy->regmap_anatop) { + unsigned int reg = mxs_phy->port_id ? + ANADIG_USB1_CHRG_DETECT_SET : + ANADIG_USB2_CHRG_DETECT_SET; + /* + * The external charger detector needs to be disabled, + * or the signal at DP will be poor + */ + regmap_write(mxs_phy->regmap_anatop, reg, + ANADIG_USB1_CHRG_DETECT_EN_B | + ANADIG_USB1_CHRG_DETECT_CHK_CHRG_B); + } + mxs_phy_tx_init(mxs_phy); return 0; |