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stmmac: Allow stmmac to work with other PHY buses(v3). 

As stmmac mdio bus name prefix is hardcoded in the driver, this allows
only phys on stmmac mdio buses to connect, however stmmac should allow
phys on other mdio buses too.

This patch adds new variable phy_bus_name to plat_stmmacenet_data
struct to let the BSP decide which phy bus to be used by stmmac driver.
A typical use-case is to have generic MDIO buses like mdio-gpio on top
of stmmac.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@st.com>
Acked-by: Florian Fainelli <florian@openwrt.org>
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Srinivas Kandagatla 2012-04-04 04:33:19 +00:00 committed by David S. Miller
parent 9450f7506d
commit f142af2e20
2 changed files with 8 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
View File

@ -307,7 +307,13 @@ static int stmmac_init_phy(struct net_device *dev)
priv->speed = 0;
priv->oldduplex = -1;
snprintf(bus_id, MII_BUS_ID_SIZE, "stmmac-%x", priv->plat->bus_id);
if (priv->plat->phy_bus_name)
snprintf(bus_id, MII_BUS_ID_SIZE, "%s-%x",
priv->plat->phy_bus_name, priv->plat->bus_id);
else
snprintf(bus_id, MII_BUS_ID_SIZE, "stmmac-%x",
priv->plat->bus_id);
snprintf(phy_id, MII_BUS_ID_SIZE + 3, PHY_ID_FMT, bus_id,
priv->plat->phy_addr);
pr_debug("stmmac_init_phy: trying to attach to %s\n", phy_id);

1
include/linux/stmmac.h
View File

@ -39,6 +39,7 @@ struct stmmac_mdio_bus_data {
};
struct plat_stmmacenet_data {
char *phy_bus_name;
int bus_id;
int phy_addr;
int interface;