net: stmmac: use integrated PCS for BASE-X modes

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dwmac-qcom-ethqos supports SGMII and 2500BASE-X using the integrated
PCS, so we need to expand the PCS support to include support for
BASE-X modes.

Add support to the prereset configuration to detect 2500BASE-X, and
arrange for stmmac_mac_select_pcs() to return the integrated PCS if
its supported_interfaces bitmap reports support for the interface mode.

This results in priv->hw->pcs now being write-only, so remove it.

Reviewed-by: Maxime Chevallier <maxime.chevallier@bootlin.com>
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://patch.msgid.link/E1w2tPj-0000000DYAv-2JcZ@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

...

This commit is contained in:

Russell King (Oracle) 2026-03-18 16:06:31 +00:00 • committed by Jakub Kicinski

parent 68cff4fff6

commit 365c62c8b5

2 changed files with 2 additions and 10 deletions

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4

drivers/net/ethernet/stmicro/stmmac/common.h

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8

drivers/net/ethernet/stmicro/stmmac/stmmac_main.c

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