Dear Peter Chen, > With the auto setting, the PHY's clock and power can be > recovered correctly from low power mode, it is ganranteed by IC logic. > > Besides, we enable the IC fixes for this PHY at mx6 platform. > > Signed-off-by: Peter Chen <peter.chen@xxxxxxxxxxxxx> > --- > drivers/usb/phy/phy-mxs-usb.c | 30 ++++++++++++++++++++++++++---- > 1 files changed, 26 insertions(+), 4 deletions(-) > > diff --git a/drivers/usb/phy/phy-mxs-usb.c b/drivers/usb/phy/phy-mxs-usb.c > index f80e2e6..868c445 100644 > --- a/drivers/usb/phy/phy-mxs-usb.c > +++ b/drivers/usb/phy/phy-mxs-usb.c > @@ -1,5 +1,5 @@ > /* > - * Copyright 2012 Freescale Semiconductor, Inc. > + * Copyright 2012-2013 Freescale Semiconductor, Inc. > * Copyright (C) 2012 Marek Vasut <marex@xxxxxxx> > * on behalf of DENX Software Engineering GmbH > * > @@ -29,8 +29,17 @@ > #define HW_USBPHY_CTRL_SET 0x34 > #define HW_USBPHY_CTRL_CLR 0x38 > > +#define HW_USBPHY_IP 0x90 > +#define HW_USBPHY_IP_SET 0x94 > +#define HW_USBPHY_IP_CLR 0x98 > + > #define BM_USBPHY_CTRL_SFTRST BIT(31) > #define BM_USBPHY_CTRL_CLKGATE BIT(30) > +#define BM_USBPHY_CTRL_ENAUTOSET_USBCLKS BIT(26) > +#define BM_USBPHY_CTRL_ENAUTOCLR_USBCLKGATE BIT(25) > +#define BM_USBPHY_CTRL_ENAUTOCLR_PHY_PWD BIT(20) > +#define BM_USBPHY_CTRL_ENAUTOCLR_CLKGATE BIT(19) > +#define BM_USBPHY_CTRL_ENAUTO_PWRON_PLL BIT(18) > #define BM_USBPHY_CTRL_ENUTMILEVEL3 BIT(15) > #define BM_USBPHY_CTRL_ENUTMILEVEL2 BIT(14) > #define BM_USBPHY_CTRL_ENHOSTDISCONDETECT BIT(1) > @@ -100,11 +109,24 @@ static int mxs_phy_hw_init(struct mxs_phy *mxs_phy) > /* Power up the PHY */ > writel(0, base + HW_USBPHY_PWD); > > - /* enable FS/LS device */ > - writel(BM_USBPHY_CTRL_ENUTMILEVEL2 | > - BM_USBPHY_CTRL_ENUTMILEVEL3, > + /* > + * USB PHY Ctrl Setting > + * - Auto clock/power on > + * - Enable full/low speed support > + */ > + writel(BM_USBPHY_CTRL_ENAUTOSET_USBCLKS | > + BM_USBPHY_CTRL_ENAUTOCLR_USBCLKGATE | > + BM_USBPHY_CTRL_ENAUTOCLR_PHY_PWD | > + BM_USBPHY_CTRL_ENAUTOCLR_CLKGATE | > + BM_USBPHY_CTRL_ENAUTO_PWRON_PLL | > + BM_USBPHY_CTRL_ENUTMILEVEL2 | > + BM_USBPHY_CTRL_ENUTMILEVEL3, > base + HW_USBPHY_CTRL_SET); > > + /* Enable IC solution */ > + if (is_mx6q_phy(mxs_phy) || is_mx6sl_phy(mxs_phy)) > + writel(BM_USBPHY_IP_FIX, base + HW_USBPHY_IP_SET); So why not just add fsl,imx6-phy instead of adding three phy types ? Best regards, Marek Vasut -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
