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net: stmmac: socfpga: Enable internal GMII when using 1000BaseX

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Dwmac Socfpga may be used with an instance of a Lynx / Altera TSE PCS,
in which case it gains support for 1000BaseX.

It appears that the PCS is wired to the MAC through an internal GMII
bus. Make sure that we enable the GMII_MII mode for the internal MAC when
using 1000BaseX.

Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Link: https://patch.msgid.link/20250424071223.221239-2-maxime.chevallier@bootlin.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Maxime Chevallier 2025-04-24 09:12:20 +02:00 committed by Jakub Kicinski
parent f438eee2c8
commit 6fba40e7f6
1 changed files with 1 additions and 0 deletions
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drivers/net/ethernet/stmicro/stmmac/dwmac-socfpga.c
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@ -256,6 +256,7 @@ static int socfpga_set_phy_mode_common(int phymode, u32 *val)
case PHY_INTERFACE_MODE_MII:
case PHY_INTERFACE_MODE_GMII:
case PHY_INTERFACE_MODE_SGMII:
case PHY_INTERFACE_MODE_1000BASEX:
*val = SYSMGR_EMACGRP_CTRL_PHYSEL_ENUM_GMII_MII;
break;
case PHY_INTERFACE_MODE_RMII: