ar8216: Create helpers mii_read32 / mii_write32 for 32 bit MII ops

Create helpers mii_read32 / mii_write32 for 32 bit MII ops.
Rename r3 variable to page in ar8xxx_mii_write to make it consistent
with the other ar8xxx_mii_xxxx functions.

Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
SVN-Revision: 43741

diff --git a/target/linux/generic/files/drivers/net/phy/ar8216.c b/target/linux/generic/files/drivers/net/phy/ar8216.c
index fbc5bf2f046607a0d1adbfcd91c721116ad12fdc..14627c1c7906148c4d149933a0f4be92f91fcb10 100644 (file)
--- a/target/linux/generic/files/drivers/net/phy/ar8216.c
+++ b/target/linux/generic/files/drivers/net/phy/ar8216.c
@@ -398,12 +398,43 @@ ar8xxx_phy_init(struct ar8xxx_priv *priv)
        ar8xxx_phy_poll_reset(bus);
 }
 
+static u32
+mii_read32(struct ar8xxx_priv *priv, int phy_id, int regnum)
+{
+       struct mii_bus *bus = priv->mii_bus;
+       u16 lo, hi;
+
+       lo = bus->read(bus, phy_id, regnum);
+       hi = bus->read(bus, phy_id, regnum + 1);
+
+       return (hi << 16) | lo;
+}
+
+static void
+mii_write32(struct ar8xxx_priv *priv, int phy_id, int regnum, u32 val)
+{
+       struct mii_bus *bus = priv->mii_bus;
+       u16 lo, hi;
+
+       lo = val & 0xffff;
+       hi = (u16) (val >> 16);
+
+       if (priv->chip->mii_lo_first)
+       {
+               bus->write(bus, phy_id, regnum, lo);
+               bus->write(bus, phy_id, regnum + 1, hi);
+       } else {
+               bus->write(bus, phy_id, regnum + 1, hi);
+               bus->write(bus, phy_id, regnum, lo);
+       }
+}
+
 static u32
 ar8xxx_mii_read(struct ar8xxx_priv *priv, int reg)
 {
        struct mii_bus *bus = priv->mii_bus;
        u16 r1, r2, page;
-       u16 lo, hi;
+       u32 val;
 
        split_addr((u32) reg, &r1, &r2, &page);
 
@@ -411,36 +442,26 @@ ar8xxx_mii_read(struct ar8xxx_priv *priv, int reg)
 
        bus->write(bus, 0x18, 0, page);
        usleep_range(1000, 2000); /* wait for the page switch to propagate */
-       lo = bus->read(bus, 0x10 | r2, r1);
-       hi = bus->read(bus, 0x10 | r2, r1 + 1);
+       val = mii_read32(priv, 0x10 | r2, r1);
 
        mutex_unlock(&bus->mdio_lock);
 
-       return (hi << 16) | lo;
+       return val;
 }
 
 static void
 ar8xxx_mii_write(struct ar8xxx_priv *priv, int reg, u32 val)
 {
        struct mii_bus *bus = priv->mii_bus;
-       u16 r1, r2, r3;
-       u16 lo, hi;
+       u16 r1, r2, page;
 
-       split_addr((u32) reg, &r1, &r2, &r3);
-       lo = val & 0xffff;
-       hi = (u16) (val >> 16);
+       split_addr((u32) reg, &r1, &r2, &page);
 
        mutex_lock(&bus->mdio_lock);
 
-       bus->write(bus, 0x18, 0, r3);
+       bus->write(bus, 0x18, 0, page);
        usleep_range(1000, 2000); /* wait for the page switch to propagate */
-       if (priv->chip->mii_lo_first) {
-               bus->write(bus, 0x10 | r2, r1, lo);
-               bus->write(bus, 0x10 | r2, r1 + 1, hi);
-       } else {
-               bus->write(bus, 0x10 | r2, r1 + 1, hi);
-               bus->write(bus, 0x10 | r2, r1, lo);
-       }
+       mii_write32(priv, 0x10 | r2, r1, val);
 
        mutex_unlock(&bus->mdio_lock);
 }
@@ -450,7 +471,6 @@ ar8xxx_mii_rmw(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val)
 {
        struct mii_bus *bus = priv->mii_bus;
        u16 r1, r2, page;
-       u16 lo, hi;
        u32 ret;
 
        split_addr((u32) reg, &r1, &r2, &page);
@@ -460,30 +480,16 @@ ar8xxx_mii_rmw(struct ar8xxx_priv *priv, int reg, u32 mask, u32 val)
        bus->write(bus, 0x18, 0, page);
        usleep_range(1000, 2000); /* wait for the page switch to propagate */
 
-       lo = bus->read(bus, 0x10 | r2, r1);
-       hi = bus->read(bus, 0x10 | r2, r1 + 1);
-
-       ret = hi << 16 | lo;
+       ret = mii_read32(priv, 0x10 | r2, r1);
        ret &= ~mask;
        ret |= val;
-
-       lo = ret & 0xffff;
-       hi = (u16) (ret >> 16);
-
-       if (priv->chip->mii_lo_first) {
-               bus->write(bus, 0x10 | r2, r1, lo);
-               bus->write(bus, 0x10 | r2, r1 + 1, hi);
-       } else {
-               bus->write(bus, 0x10 | r2, r1 + 1, hi);
-               bus->write(bus, 0x10 | r2, r1, lo);
-       }
+       mii_write32(priv, 0x10 | r2, r1, ret);
 
        mutex_unlock(&bus->mdio_lock);
 
        return ret;
 }
 
-
 static void
 ar8xxx_phy_dbg_write(struct ar8xxx_priv *priv, int phy_addr,
                     u16 dbg_addr, u16 dbg_data)