target/linux/generic/backport-4.9/075-v4.10-0005-net-phy-broadcom-Move-bcm54xx_auxctl_-read-write-to-.patch

   1 From: Florian Fainelli <f.fainelli@gmail.com>
   2 Date: Tue, 22 Nov 2016 11:40:54 -0800
   3 Subject: [PATCH] net: phy: broadcom: Move bcm54xx_auxctl_{read, write} to
   4  common library
   5
   6 We are going to need these functions to implement support for Broadcom
   7 Wirespeed, aka downshift.
   8
   9 Signed-off-by: Florian Fainelli <f.fainelli@gmail.com>
  10 Signed-off-by: David S. Miller <davem@davemloft.net>
  11 ---
  12
  13 --- a/drivers/net/phy/bcm-phy-lib.c
  14 +++ b/drivers/net/phy/bcm-phy-lib.c
  15 @@ -50,6 +50,23 @@ int bcm_phy_read_exp(struct phy_device *
  16  }
  17  EXPORT_SYMBOL_GPL(bcm_phy_read_exp);
  18
  19 +int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum)
  20 +{
  21 +       /* The register must be written to both the Shadow Register Select and
  22 +        * the Shadow Read Register Selector
  23 +        */
  24 +       phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum |
  25 +                 regnum << MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT);
  26 +       return phy_read(phydev, MII_BCM54XX_AUX_CTL);
  27 +}
  28 +EXPORT_SYMBOL_GPL(bcm54xx_auxctl_read);
  29 +
  30 +int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
  31 +{
  32 +       return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
  33 +}
  34 +EXPORT_SYMBOL(bcm54xx_auxctl_write);
  35 +
  36  int bcm_phy_write_misc(struct phy_device *phydev,
  37                        u16 reg, u16 chl, u16 val)
  38  {
  39 --- a/drivers/net/phy/bcm-phy-lib.h
  40 +++ b/drivers/net/phy/bcm-phy-lib.h
  41 @@ -19,6 +19,9 @@
  42  int bcm_phy_write_exp(struct phy_device *phydev, u16 reg, u16 val);
  43  int bcm_phy_read_exp(struct phy_device *phydev, u16 reg);
  44
  45 +int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val);
  46 +int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum);
  47 +
  48  int bcm_phy_write_misc(struct phy_device *phydev,
  49                        u16 reg, u16 chl, u16 value);
  50  int bcm_phy_read_misc(struct phy_device *phydev,
  51 --- a/drivers/net/phy/broadcom.c
  52 +++ b/drivers/net/phy/broadcom.c
  53 @@ -30,21 +30,6 @@ MODULE_DESCRIPTION("Broadcom PHY driver"
  54  MODULE_AUTHOR("Maciej W. Rozycki");
  55  MODULE_LICENSE("GPL");
  56
  57 -static int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum)
  58 -{
  59 -       /* The register must be written to both the Shadow Register Select and
  60 -        * the Shadow Read Register Selector
  61 -        */
  62 -       phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum |
  63 -                 regnum << MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT);
  64 -       return phy_read(phydev, MII_BCM54XX_AUX_CTL);
  65 -}
  66 -
  67 -static int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
  68 -{
  69 -       return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
  70 -}
  71 -
  72  static int bcm54810_config(struct phy_device *phydev)
  73  {
  74         int rc, val;