Commit 1f71e8c9 authored by Markus Brunner's avatar Markus Brunner Committed by David S. Miller

drivers: net: cpsw: Add support for fixed-link PHY

Add support for a fixed-link devicetree sub-node in case the the
cpsw MAC is directly connected to a non-mdio PHY/device.
Signed-off-by: default avatarMarkus Brunner <systemprogrammierung.brunner@gmail.com>
Acked-by: default avatarMugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent d9c7dbc1
...@@ -48,6 +48,11 @@ Optional properties: ...@@ -48,6 +48,11 @@ Optional properties:
- mac-address : See ethernet.txt file in the same directory - mac-address : See ethernet.txt file in the same directory
- phy-handle : See ethernet.txt file in the same directory - phy-handle : See ethernet.txt file in the same directory
Slave sub-nodes:
- fixed-link : See fixed-link.txt file in the same directory
Either the properties phy_id and phy-mode,
or the sub-node fixed-link can be specified
Note: "ti,hwmods" field is used to fetch the base address and irq Note: "ti,hwmods" field is used to fetch the base address and irq
resources from TI, omap hwmod data base during device registration. resources from TI, omap hwmod data base during device registration.
Future plan is to migrate hwmod data base contents into device tree Future plan is to migrate hwmod data base contents into device tree
......
...@@ -2037,6 +2037,19 @@ static int cpsw_probe_dt(struct cpsw_priv *priv, ...@@ -2037,6 +2037,19 @@ static int cpsw_probe_dt(struct cpsw_priv *priv,
continue; continue;
priv->phy_node = of_parse_phandle(slave_node, "phy-handle", 0); priv->phy_node = of_parse_phandle(slave_node, "phy-handle", 0);
if (of_phy_is_fixed_link(slave_node)) {
struct phy_device *pd;
ret = of_phy_register_fixed_link(slave_node);
if (ret)
return ret;
pd = of_phy_find_device(slave_node);
if (!pd)
return -ENODEV;
snprintf(slave_data->phy_id, sizeof(slave_data->phy_id),
PHY_ID_FMT, pd->bus->id, pd->phy_id);
goto no_phy_slave;
}
parp = of_get_property(slave_node, "phy_id", &lenp); parp = of_get_property(slave_node, "phy_id", &lenp);
if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) { if ((parp == NULL) || (lenp != (sizeof(void *) * 2))) {
dev_err(&pdev->dev, "Missing slave[%d] phy_id property\n", i); dev_err(&pdev->dev, "Missing slave[%d] phy_id property\n", i);
......
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