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| author | Grygorii Strashko <grygorii.strashko@ti.com> | 2019-09-19 11:16:39 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2019-11-03 09:36:06 -0500 |
| commit | 3c57b620db1764335caaba0367e46b058ff9d724 (patch) | |
| tree | bf452a9e255885998cc8c769f8cfe8cc8449a0fb | |
| parent | 4040148b9e932124f843f309d0b344376337311b (diff) | |
| download | u-boot-3c57b620db1764335caaba0367e46b058ff9d724.tar.gz u-boot-3c57b620db1764335caaba0367e46b058ff9d724.tar.bz2 u-boot-3c57b620db1764335caaba0367e46b058ff9d724.zip | |
net: ti: cpsw: add support for standard eth "max-speed" dt property
This patch adds support for standard Ethernet "max-speed" DT property to
allow PHY link speed limitation.
Signed-off-by: Grygorii Strashko <grygorii.strashko@ti.com>
| -rw-r--r-- | drivers/net/ti/cpsw.c | 15 | ||||
| -rw-r--r-- | include/cpsw.h | 1 |
2 files changed, 16 insertions, 0 deletions
diff --git a/drivers/net/ti/cpsw.c b/drivers/net/ti/cpsw.c index 533c167995..24265360e6 100644 --- a/drivers/net/ti/cpsw.c +++ b/drivers/net/ti/cpsw.c @@ -839,6 +839,7 @@ static int cpsw_phy_init(struct cpsw_priv *priv, struct cpsw_slave *slave) { struct phy_device *phydev; u32 supported = PHY_GBIT_FEATURES; + int ret; phydev = phy_connect(priv->bus, slave->data->phy_addr, @@ -849,6 +850,13 @@ static int cpsw_phy_init(struct cpsw_priv *priv, struct cpsw_slave *slave) return -1; phydev->supported &= supported; + if (slave->data->max_speed) { + ret = phy_set_supported(phydev, slave->data->max_speed); + if (ret) + return ret; + dev_dbg(priv->dev, "Port %u speed forced to %uMbit\n", + slave->slave_num + 1, slave->data->max_speed); + } phydev->advertising = phydev->supported; #ifdef CONFIG_DM_ETH @@ -1185,6 +1193,7 @@ static void cpsw_eth_of_parse_slave(struct cpsw_platform_data *data, struct cpsw_slave_data *slave_data; const void *fdt = gd->fdt_blob; const char *phy_mode; + int max_speed = -1; u32 phy_id[2]; slave_data = &data->slave_data[slave_index]; @@ -1206,6 +1215,12 @@ static void cpsw_eth_of_parse_slave(struct cpsw_platform_data *data, phy_id, 2); slave_data->phy_addr = phy_id[1]; } + + slave_data->max_speed = 0; + max_speed = fdtdec_get_int(fdt, subnode, + "max-speed", max_speed); + if (max_speed > 0) + slave_data->max_speed = max_speed; } static int cpsw_eth_ofdata_to_platdata(struct udevice *dev) diff --git a/include/cpsw.h b/include/cpsw.h index 96ff254f98..c7532fc866 100644 --- a/include/cpsw.h +++ b/include/cpsw.h @@ -39,6 +39,7 @@ struct cpsw_slave_data { int phy_addr; int phy_if; int phy_of_handle; + int max_speed; }; enum { |