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Prepare the tn40xx driver to load for Tehuti TN9510 cards, which require
bit 3 in the register TN40_REG_MDIO_CMD_STAT to be set. The function of bit
3 is unclear, but may have something to do with the length of the preamble
in the MDIO communication. If bit 3 is not set, the PHY will not be found
when performing a scan for PHYs. Use the available tn40_mdio_set_speed
function which includes setting bit 3. Just move the function to before the
devm_mdio_register function, which scans the mdio bus for PHYs.
Signed-off-by: Hans-Frieder Vogt <hfdevel@gmx.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Link: https://patch.msgid.link/20250322-tn9510-v3a-v7-6-672a9a3d8628@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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In case of an AQR105-based device, create a software node for the mdio
function, with a child node for the Aquantia AQR105 PHY, providing a
firmware-name (and a bit more, which may be used for future checks) to
allow the PHY to load a MAC specific firmware from the file system.
The name of the PHY software node follows the naming convention suggested
in the patch for the mdiobus_scan function (in the same patch series).
Signed-off-by: Hans-Frieder Vogt <hfdevel@gmx.net>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Link: https://patch.msgid.link/20250322-tn9510-v3a-v7-5-672a9a3d8628@gmx.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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This patch adds supports for mdio bus. A later path adds PHYLIB
support on the top of this.
Signed-off-by: FUJITA Tomonori <fujita.tomonori@gmail.com>
Link: https://patch.msgid.link/20240623235507.108147-7-fujita.tomonori@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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