diff options
Diffstat (limited to 'drivers/of')
-rw-r--r-- | drivers/of/of_mdio.c | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/drivers/of/of_mdio.c b/drivers/of/of_mdio.c index aee967d7f760..bacaa536fd51 100644 --- a/drivers/of/of_mdio.c +++ b/drivers/of/of_mdio.c | |||
@@ -9,6 +9,10 @@ | |||
9 | * out of the OpenFirmware device tree and using it to populate an mii_bus. | 9 | * out of the OpenFirmware device tree and using it to populate an mii_bus. |
10 | */ | 10 | */ |
11 | 11 | ||
12 | #include <linux/kernel.h> | ||
13 | #include <linux/device.h> | ||
14 | #include <linux/netdevice.h> | ||
15 | #include <linux/err.h> | ||
12 | #include <linux/phy.h> | 16 | #include <linux/phy.h> |
13 | #include <linux/of.h> | 17 | #include <linux/of.h> |
14 | #include <linux/of_mdio.h> | 18 | #include <linux/of_mdio.h> |
@@ -137,3 +141,41 @@ struct phy_device *of_phy_connect(struct net_device *dev, | |||
137 | return phy_connect_direct(dev, phy, hndlr, flags, iface) ? NULL : phy; | 141 | return phy_connect_direct(dev, phy, hndlr, flags, iface) ? NULL : phy; |
138 | } | 142 | } |
139 | EXPORT_SYMBOL(of_phy_connect); | 143 | EXPORT_SYMBOL(of_phy_connect); |
144 | |||
145 | /** | ||
146 | * of_phy_connect_fixed_link - Parse fixed-link property and return a dummy phy | ||
147 | * @dev: pointer to net_device claiming the phy | ||
148 | * @hndlr: Link state callback for the network device | ||
149 | * @iface: PHY data interface type | ||
150 | * | ||
151 | * This function is a temporary stop-gap and will be removed soon. It is | ||
152 | * only to support the fs_enet, ucc_geth and gianfar Ethernet drivers. Do | ||
153 | * not call this function from new drivers. | ||
154 | */ | ||
155 | struct phy_device *of_phy_connect_fixed_link(struct net_device *dev, | ||
156 | void (*hndlr)(struct net_device *), | ||
157 | phy_interface_t iface) | ||
158 | { | ||
159 | struct device_node *net_np; | ||
160 | char bus_id[MII_BUS_ID_SIZE + 3]; | ||
161 | struct phy_device *phy; | ||
162 | const u32 *phy_id; | ||
163 | int sz; | ||
164 | |||
165 | if (!dev->dev.parent) | ||
166 | return NULL; | ||
167 | |||
168 | net_np = dev_archdata_get_node(&dev->dev.parent->archdata); | ||
169 | if (!net_np) | ||
170 | return NULL; | ||
171 | |||
172 | phy_id = of_get_property(net_np, "fixed-link", &sz); | ||
173 | if (!phy_id || sz < sizeof(*phy_id)) | ||
174 | return NULL; | ||
175 | |||
176 | sprintf(bus_id, PHY_ID_FMT, "0", phy_id[0]); | ||
177 | |||
178 | phy = phy_connect(dev, bus_id, hndlr, 0, iface); | ||
179 | return IS_ERR(phy) ? NULL : phy; | ||
180 | } | ||
181 | EXPORT_SYMBOL(of_phy_connect_fixed_link); | ||