summaryrefslogtreecommitdiff
path: root/drivers/net/phy/bcm-phy-lib.c
diff options
context:
space:
mode:
authorFlorian Fainelli <f.fainelli@gmail.com>2016-11-22 22:40:54 +0300
committerDavid S. Miller <davem@davemloft.net>2016-11-24 23:45:53 +0300
commit5519da874ad0f382b725281e443cf7fe58995ed8 (patch)
treed8ef7254ed89fcd84ef48c72d7ed055d2ac26a09 /drivers/net/phy/bcm-phy-lib.c
parentf8071cde7890db198201afa748efd658a8ba0fb2 (diff)
downloadlinux-5519da874ad0f382b725281e443cf7fe58995ed8.tar.xz
net: phy: broadcom: Move bcm54xx_auxctl_{read, write} to common library
We are going to need these functions to implement support for Broadcom Wirespeed, aka downshift. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/phy/bcm-phy-lib.c')
-rw-r--r--drivers/net/phy/bcm-phy-lib.c17
1 files changed, 17 insertions, 0 deletions
diff --git a/drivers/net/phy/bcm-phy-lib.c b/drivers/net/phy/bcm-phy-lib.c
index df0416db0b88..18e11b3a0f41 100644
--- a/drivers/net/phy/bcm-phy-lib.c
+++ b/drivers/net/phy/bcm-phy-lib.c
@@ -50,6 +50,23 @@ int bcm_phy_read_exp(struct phy_device *phydev, u16 reg)
}
EXPORT_SYMBOL_GPL(bcm_phy_read_exp);
+int bcm54xx_auxctl_read(struct phy_device *phydev, u16 regnum)
+{
+ /* The register must be written to both the Shadow Register Select and
+ * the Shadow Read Register Selector
+ */
+ phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum |
+ regnum << MII_BCM54XX_AUXCTL_SHDWSEL_READ_SHIFT);
+ return phy_read(phydev, MII_BCM54XX_AUX_CTL);
+}
+EXPORT_SYMBOL_GPL(bcm54xx_auxctl_read);
+
+int bcm54xx_auxctl_write(struct phy_device *phydev, u16 regnum, u16 val)
+{
+ return phy_write(phydev, MII_BCM54XX_AUX_CTL, regnum | val);
+}
+EXPORT_SYMBOL(bcm54xx_auxctl_write);
+
int bcm_phy_write_misc(struct phy_device *phydev,
u16 reg, u16 chl, u16 val)
{