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ARM: imx: imx8mn-*-evk: use DM settings for PHY configuration

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With the correct settings described in the device-tree the PHY settings
in the board init are no longer required. The values are taken from the
linux device tree.

The PHY latency settings are derived from the phy-mode property and the
voltage seetings are done via the regulator.

Suggested-by: Michael Walle <michael@walle.cc>
Signed-off-by: Heiko Thiery <heiko.thiery@gmail.com>
Tested-by: Marek Vasut <marex@denx.de> # 8MNANOD4-EVK
Reviewed-by: Fabio Estevam <festevam@gmail.com>
This commit is contained in:
Heiko Thiery 2022-02-23 09:10:29 +01:00 committed by Stefano Babic
parent 9eb5e7d9ab
commit 775011980b
2 changed files with 6 additions and 16 deletions
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6
arch/arm/dts/imx8mn-evk.dtsi
View file

@ -64,6 +64,12 @@
ethphy0: ethernet-phy@0 {
compatible = "ethernet-phy-ieee802.3-c22";
reg = <0>;
vddio-supply = <&vddio>;
vddio: vddio-regulator {
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
};
};
};
};

16
board/freescale/imx8mn_evk/imx8mn_evk.c
View file

@ -27,22 +27,6 @@ static void setup_fec(void)
clrsetbits_le32(&gpr->gpr[1], 0x2000, 0);
}
int board_phy_config(struct phy_device *phydev)
{
/* enable rgmii rxc skew and phy mode select to RGMII copper */
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x1f);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x8);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x00);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x82ee);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1d, 0x05);
phy_write(phydev, MDIO_DEVAD_NONE, 0x1e, 0x100);
if (phydev->drv->config)
phydev->drv->config(phydev);
return 0;
}
int board_init(void)
{
setup_fec();