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| author | Chuanhong Guo <gch981213@gmail.com> | 2019-01-20 22:25:25 +0800 |
|---|---|---|
| committer | Petr Štetiar <ynezz@true.cz> | 2019-03-24 01:44:27 +0100 |
| commit | c8c2ef1d495dd3fd3096ac508e91a02f9c583ea8 (patch) | |
| tree | a74615f4406577d448cc7c2c050e75779004c989 /target/linux | |
| parent | d6366ce3665f010a7ae7061a557689643073040a (diff) | |
| download | upstream-c8c2ef1d495dd3fd3096ac508e91a02f9c583ea8.tar.gz upstream-c8c2ef1d495dd3fd3096ac508e91a02f9c583ea8.tar.bz2 upstream-c8c2ef1d495dd3fd3096ac508e91a02f9c583ea8.zip | |
generic: ar8216: do a software reset for switch during hw_init
This applies to ar8216 and ar8236. QCA's newer U-boot will enable
the switch mdio master for FE switches which makes phy inaccessible
from CPU mdio. (e.g. on TP-Link TL-WR941N v7 Chinese version which
uses QCA9558+AR8236.) For these devices PHY probing is broken and
mdio device probing is a must. We also need to disable switch mdio
master in driver for later PHY initialization.
Do a soft reset during hw_init so that mdio master can be disabled
and expose PHYs to CPU mdio for later PHY accessing.
Signed-off-by: Chuanhong Guo <gch981213@gmail.com>
Diffstat (limited to 'target/linux')
| -rw-r--r-- | target/linux/generic/files/drivers/net/phy/ar8216.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/target/linux/generic/files/drivers/net/phy/ar8216.c b/target/linux/generic/files/drivers/net/phy/ar8216.c index a33d4b31fe..259adef822 100644 --- a/target/linux/generic/files/drivers/net/phy/ar8216.c +++ b/target/linux/generic/files/drivers/net/phy/ar8216.c @@ -705,6 +705,9 @@ ar8216_hw_init(struct ar8xxx_priv *priv) if (priv->initialized) return 0; + ar8xxx_write(priv, AR8216_REG_CTRL, AR8216_CTRL_RESET); + ar8xxx_reg_wait(priv, AR8216_REG_CTRL, AR8216_CTRL_RESET, 0, 1000); + ar8xxx_phy_init(priv); priv->initialized = true; |