> -Original Message-
> From: Florian Fainelli [mailto:f.faine...@gmail.com]
> Sent: Thursday, April 23, 2015 12:57 AM
> To: Liu Shengzhou-B36685; netdev@vger.kernel.org; joe.hershber...@gmail.com
> Subject: Re: [PATCH] net/phy: refactor RTL8211F initialization
>
> On 22/04/15 03:22, Shengzhou Liu wrote:
> > RTL8211F needs to enalbe TXDLY for RGMII during phy initialization, so
> > move it to rtl8211f_config for early initialization.
> >
> > Signed-off-by: Shengzhou Liu
> > cc: Joe Hershberger
> > ---
> > drivers/net/phy/realtek.c | 25 +
> > 1 file changed, 17 insertions(+), 8 deletions(-)
> >
> > diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
> > index 3917c82..d48095b 100644
> > --- a/drivers/net/phy/realtek.c
> > +++ b/drivers/net/phy/realtek.c
> > @@ -43,6 +43,22 @@ static int rtl8211x_config(struct phy_device *phydev)
> > return 0;
> > }
> >
> > +static int rtl8211f_config(struct phy_device *phydev) {
> > + phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
>
> That part of the change is not documented but has to be, and you should use
> genphy_soft_reset() which also takes care of waiting the required amount of
> time before BMCR_RESET is cleared.
There is no genphy_soft_reset() in current u-boot tree.
> > +
> > + if (phydev->interface == PHY_INTERFACE_MODE_RGMII) {
> > + /* enable TXDLY */
> > + phy_write(phydev, MDIO_DEVAD_NONE,
> > + MIIM_RTL8211F_PAGE_SELECT, 0xd08);
> > + phy_write(phydev, MDIO_DEVAD_NONE, 0x11, 0x109);
>
> Do you need to reset the page selector somehow after this write?
Actually no need to reset the page selector.
> > + }
> > +
> > + genphy_config_aneg(phydev);
> > +
> > + return 0;
> > +}
> > +
> > static int rtl8211x_parse_status(struct phy_device *phydev) {
> > unsigned int speed;
> > @@ -142,13 +158,6 @@ static int rtl8211f_parse_status(struct phy_device
> *phydev)
> > phydev->speed = SPEED_10;
> > }
> >
> > - if (phydev->interface == PHY_INTERFACE_MODE_RGMII) {
> > - /* enable TXDLY */
> > - phy_write(phydev, MDIO_DEVAD_NONE,
> > - MIIM_RTL8211F_PAGE_SELECT, 0xd08);
> > - phy_write(phydev, MDIO_DEVAD_NONE, 0x11, 0x109);
> > - }
> > -
> > return 0;
> > }
> >
> > @@ -209,7 +218,7 @@ static struct phy_driver RTL8211F_driver = {
> > .uid = 0x1cc916,
> > .mask = 0xff,
> > .features = PHY_GBIT_FEATURES,
> > - .config = &rtl8211x_config,
> > + .config = &rtl8211f_config,
> > .startup = &rtl8211f_startup,
> > .shutdown = &genphy_shutdown,
> > };
> >
>
>
> --
> Florian
