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-rw-r--r--drivers/net/stmmac/stmmac.h1
-rw-r--r--drivers/net/stmmac/stmmac_main.c1
-rw-r--r--drivers/net/stmmac/stmmac_mdio.c5
-rw-r--r--include/linux/stmmac.h1
4 files changed, 6 insertions, 2 deletions
diff --git a/drivers/net/stmmac/stmmac.h b/drivers/net/stmmac/stmmac.h
index d0ddab0d21c2..12d1cb00c0d7 100644
--- a/drivers/net/stmmac/stmmac.h
+++ b/drivers/net/stmmac/stmmac.h
@@ -78,6 +78,7 @@ struct stmmac_priv {
unsigned int flow_ctrl;
unsigned int pause;
struct mii_bus *mii;
+ int mii_clk_csr;
u32 msg_enable;
spinlock_t lock;
diff --git a/drivers/net/stmmac/stmmac_main.c b/drivers/net/stmmac/stmmac_main.c
index 03c160c6d75c..a169b1441d50 100644
--- a/drivers/net/stmmac/stmmac_main.c
+++ b/drivers/net/stmmac/stmmac_main.c
@@ -1704,6 +1704,7 @@ static int stmmac_dvr_probe(struct platform_device *pdev)
plat_dat = pdev->dev.platform_data;
priv->bus_id = plat_dat->bus_id;
priv->pbl = plat_dat->pbl; /* TLI */
+ priv->mii_clk_csr = plat_dat->clk_csr;
priv->is_gmac = plat_dat->has_gmac; /* GMAC is on board */
priv->enh_desc = plat_dat->enh_desc;
priv->ioaddr = addr;
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);
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index a4adf0de6ed6..c87c88ccffc0 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -32,6 +32,7 @@
struct plat_stmmacenet_data {
int bus_id;
int pbl;
+ int clk_csr;
int has_gmac;
int enh_desc;
void (*fix_mac_speed)(void *priv, unsigned int speed);