Re: [PATCH net-next v2 11/12] net: phy: marvell10g: print exact model
From: Russell King - ARM Linux admin <linux@armlinux.org.uk>
Date: 2021-03-25 15:55:51
On Thu, Mar 25, 2021 at 02:12:49PM +0100, Marek Behún wrote:
quoted hunk ↗ jump to hunk
@@ -443,12 +446,24 @@ static int mv3310_probe(struct phy_device *phydev) switch (phydev->drv->phy_id) { case MARVELL_PHY_ID_88X3310: + ret = phy_read_mmd(phydev, MDIO_MMD_PMAPMD, MV_PMA_XGSTAT); + if (ret < 0) + return ret; + + has_macsec = !(ret & MV_PMA_XGSTAT_NO_MACSEC); + if (nports == 4) priv->model = MV_MODEL_88X3340; else if (nports == 1) priv->model = MV_MODEL_88X3310; break;
The 88X3310 and 88X3340 can be differentiated by bit 3 in the revision. In other words, 88X3310 is 0x09a0..0x09a7, and 88X3340 is 0x09a8..0x09af. We could add a separate driver structure, which would then allow the kernel to print a more specific string via standard methods, like we do for other PHYs. Not sure whether that would work for the 88X21x0 family though. -- RMK's Patch system: https://www.armlinux.org.uk/developer/patches/ FTTP is here! 40Mbps down 10Mbps up. Decent connectivity at last!