On 03/22/2016 08:19 AM, Michael Haas wrote:
> The RTL8211C found on the A20-OlinuXino-Lime2 does not word in slave
> mode. This patch disables master/slave mode autonegotiation and forces
> master mode.
>
> The RTL8211C identifies itself as RTL8211B via its UID. This patch uses
> the revision number taken from the PHYID2 register to distinguish the
> two. The NetBSD driver uses the same approach.
>
> CC: fra...@gmail.com
> CC: mer...@debian.org
> CC: hdego...@redhat.com
> CC: i...@hellion.org.uk
> CC: joe.hershber...@ni.com
> Signed-off-by: Michael Haas <h...@computerlinguist.org>
> ---
>
> drivers/net/phy/realtek.c | 16 +++++++++++++++-
> 1 file changed, 15 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c
> index 259a87f..cdb3376 100644
> --- a/drivers/net/phy/realtek.c
> +++ b/drivers/net/phy/realtek.c
> @@ -5,6 +5,7 @@
> *
> * Copyright 2010-2011, 2015 Freescale Semiconductor, Inc.
> * author Andy Fleming
> + * Copyright 2016 Karsten Merker <mer...@debian.org>
> */
> #include <config.h>
> #include <common.h>
> @@ -54,6 +55,19 @@ static int rtl8211x_config(struct phy_device *phydev)
> phy_write(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_INER,
> MIIM_RTL8211x_PHY_INTR_DIS);
>
> + int reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_PHYSID1);
> + int rev = reg & 0xf;
> + if (rev == 3 & 6 phydev->phy_id == 0x1cc912) {
> + /* RTL8211C and RTL8211C are distinguished only by
> + their revision number */
> + reg = phy_read(phydev, MDIO_DEVAD_NONE, MII_CTRL1000);
> + /* force manual master/slave configuration */
> + reg |= (1 << 12);
> + /* force master mode */
> + reg | = (1 << 11);
> + phy_write(phydev, MDIO_DEVAD_NONE, MII_CTRL1000, reg);
> + }
> +
> /* read interrupt status just to clear it */
> phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_INER);
>
> @@ -223,7 +237,7 @@ static int rtl8211f_startup(struct phy_device *phydev)
> /* Support for RTL8211B PHY */
> static struct phy_driver RTL8211B_driver = {
> .name = "RealTek RTL8211B",
> - .uid = 0x1cc910,
> + .uid = 0x1cc912,
> .mask = 0xffffff,
> .features = PHY_GBIT_FEATURES,
> .config = &rtl8211x_config,
I have accidentally included Karsten Merkers '[PATCH] net: phy: Realtek
RTL8211B/C PHY ID fix' due to a botched call to git am earlier. I'll be
re-sending a clean version, but note that Karsten's patch is required.
Michael
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