diff options
| author | Giuseppe CAVALLARO <peppe.cavallaro@st.com> | 2010-09-17 03:23:39 +0000 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2010-09-17 16:12:56 -0700 |
| commit | dfb8fb96ae2b5126cd0c08c0ccd7c42e1f46568a (patch) | |
| tree | 9727f43bae819ece67c1c9bc26b3cb52e236e5ce /drivers/net/stmmac/stmmac_mdio.c | |
| parent | 67c9660831f6b6b76866a0838466c83765ffbbd3 (diff) | |
| download | lwn-dfb8fb96ae2b5126cd0c08c0ccd7c42e1f46568a.tar.gz lwn-dfb8fb96ae2b5126cd0c08c0ccd7c42e1f46568a.zip | |
stmmac: add CSR Clock range selection
This patch adds the CSR Clock range selection.
Original patch from Johannes Stezenbach fixed the CSR
in the stmmac_mdio. We agreed to provide this through
the platform instead of.
Also thanks to Johannes for having tested it on ARM.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: Johannes Stezenbach <js@sig21.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/stmmac/stmmac_mdio.c')
| -rw-r--r-- | drivers/net/stmmac/stmmac_mdio.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/stmmac/stmmac_mdio.c b/drivers/net/stmmac/stmmac_mdio.c index 03dea1401571..d7441616357d 100644 --- a/drivers/net/stmmac/stmmac_mdio.c +++ b/drivers/net/stmmac/stmmac_mdio.c @@ -53,7 +53,7 @@ static int stmmac_mdio_read(struct mii_bus *bus, int phyaddr, int phyreg) int data; u16 regValue = (((phyaddr << 11) & (0x0000F800)) | ((phyreg << 6) & (0x000007C0))); - regValue |= MII_BUSY; /* in case of GMAC */ + regValue |= MII_BUSY | ((priv->mii_clk_csr & 7) << 2); do {} while (((readl(priv->ioaddr + mii_address)) & MII_BUSY) == 1); writel(regValue, priv->ioaddr + mii_address); @@ -85,7 +85,8 @@ static int stmmac_mdio_write(struct mii_bus *bus, int phyaddr, int phyreg, (((phyaddr << 11) & (0x0000F800)) | ((phyreg << 6) & (0x000007C0))) | MII_WRITE; - value |= MII_BUSY; + value |= MII_BUSY | ((priv->mii_clk_csr & 7) << 2); + /* Wait until any existing MII operation is complete */ do {} while (((readl(priv->ioaddr + mii_address)) & MII_BUSY) == 1); |