add ax88772C AX88772C_eeprom_tools

hc

2024-05-10 61598093bbdd283a7edc367d900f223070ead8d2

 kernel/drivers/net/phy/marvell10g.c
..
..
@@ -263,6 +263,13 @@
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 	ret = phy_clear_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
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 				 MV_V2_PORT_CTRL_PWRDOWN);
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+	/* Sometimes, the power down bit doesn't clear immediately, and
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+	 * a read of this register causes the bit not to clear. Delay
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+	 * 100us to allow the PHY to come out of power down mode before
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+	 * the next access.
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+	 */
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+	udelay(100);
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+
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 	if (phydev->drv->phy_id != MARVELL_PHY_ID_88X3310 ||
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 	    priv->firmware_ver < 0x00030000)
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 		return ret;