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authorSARTRE Leo <lsartre@adeneo-embedded.com>2013-04-30 16:57:25 +0200
committerJoe Hershberger <joe.hershberger@ni.com>2013-06-24 19:11:16 -0500
commit42a7cb50a96e95cdca26607727c6767876414ced (patch)
tree2bcbc6917575511d34d95c9c65ce9e25298fb2a3 /drivers
parentd256be29f86b7c4e98435f7047a3e9c44dd7e0f4 (diff)
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net: phy: supplement support for Micrel's KSZ9031
Add function ksz9031_phy_extended_write and ksz9031_phy_extended_read Signed-off-by: Leo Sartre <lsartre@adeneo-embedded.com>
Diffstat (limited to 'drivers')
-rw-r--r--drivers/net/phy/micrel.c36
1 files changed, 35 insertions, 1 deletions
diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c
index 2a8b6cb..aa9cbcf 100644
--- a/drivers/net/phy/micrel.c
+++ b/drivers/net/phy/micrel.c
@@ -148,9 +148,43 @@ static struct phy_driver ksz9021_driver = {
};
#endif
-/*
+/**
* KSZ9031
*/
+/* PHY Registers */
+#define MII_KSZ9031_MMD_ACCES_CTRL 0x0d
+#define MII_KSZ9031_MMD_REG_DATA 0x0e
+
+/* Accessors to extended registers*/
+int ksz9031_phy_extended_write(struct phy_device *phydev,
+ int devaddr, int regnum, u16 mode, u16 val)
+{
+ /*select register addr for mmd*/
+ phy_write(phydev, MDIO_DEVAD_NONE,
+ MII_KSZ9031_MMD_ACCES_CTRL, devaddr);
+ /*select register for mmd*/
+ phy_write(phydev, MDIO_DEVAD_NONE,
+ MII_KSZ9031_MMD_REG_DATA, regnum);
+ /*setup mode*/
+ phy_write(phydev, MDIO_DEVAD_NONE,
+ MII_KSZ9031_MMD_ACCES_CTRL, (mode | devaddr));
+ /*write the value*/
+ return phy_write(phydev, MDIO_DEVAD_NONE,
+ MII_KSZ9031_MMD_REG_DATA, val);
+}
+
+int ksz9031_phy_extended_read(struct phy_device *phydev, int devaddr,
+ int regnum, u16 mode)
+{
+ phy_write(phydev, MDIO_DEVAD_NONE,
+ MII_KSZ9031_MMD_ACCES_CTRL, devaddr);
+ phy_write(phydev, MDIO_DEVAD_NONE,
+ MII_KSZ9031_MMD_REG_DATA, regnum);
+ phy_write(phydev, MDIO_DEVAD_NONE,
+ MII_KSZ9031_MMD_ACCES_CTRL, (devaddr | mode));
+ return phy_read(phydev, MDIO_DEVAD_NONE, MII_KSZ9031_MMD_REG_DATA);
+}
+
static struct phy_driver ksz9031_driver = {
.name = "Micrel ksz9031",
.uid = 0x221620,