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kernel: allow device-tree configuration of at803x

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This commit adds the ability to configure specific functions of the
at803x series ethernet-PHYs, which were previously configured
exclusively with the help of platform-data, via device-tree.

This is needed to fully support existing boards of the ar71xx platform.

Signed-off-by: David Bauer <mail@david-bauer.net>
This commit is contained in:
David Bauer 2018-08-06 16:21:03 +02:00 committed by John Crispin
parent fefe1da440
commit fbe17867da
1 changed files with 49 additions and 0 deletions
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49
target/linux/generic/pending-4.14/736-net-phy-at803x-allow-to-configure-via-dt.patch Normal file
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@ -0,0 +1,49 @@
Index: linux-4.14.60/drivers/net/phy/at803x.c
===================================================================
--- linux-4.14.60.orig/drivers/net/phy/at803x.c
+++ linux-4.14.60/drivers/net/phy/at803x.c
@@ -354,6 +354,14 @@ static int at803x_config_init(struct phy
AT803X_DEBUG_TX_CLK_DLY_EN, 0);
}
+#ifdef CONFIG_OF_MDIO
+ if (phydev->mdio.dev.of_node &&
+ of_property_read_bool(phydev->mdio.dev.of_node,
+ "at803x-disable-smarteee")) {
+ at803x_disable_smarteee(phydev);
+ }
+#endif
+
return 0;
}
@@ -392,6 +400,7 @@ static void at803x_link_change_notify(st
{
struct at803x_priv *priv = phydev->priv;
struct at803x_platform_data *pdata;
+ u8 fixup_rgmii_tx_delay = 0;
pdata = dev_get_platdata(&phydev->mdio.dev);
/*
@@ -421,8 +430,19 @@ static void at803x_link_change_notify(st
} else {
priv->phy_reset = false;
}
- if (pdata && pdata->fixup_rgmii_tx_delay &&
- phydev->speed != priv->prev_speed) {
+
+ if (pdata && pdata->fixup_rgmii_tx_delay)
+ fixup_rgmii_tx_delay = 1;
+
+#ifdef CONFIG_OF_MDIO
+ if (phydev->mdio.dev.of_node &&
+ of_property_read_bool(phydev->mdio.dev.of_node,
+ "at803x-fixup-rgmii-tx-delay")) {
+ fixup_rgmii_tx_delay = 1;
+ }
+#endif
+
+ if (fixup_rgmii_tx_delay && phydev->speed != priv->prev_speed) {
switch (phydev->speed) {
case SPEED_10:
case SPEED_100: