Commit 7f44b2ac authored by Charles Perry's avatar Charles Perry Committed by Jakub Kicinski
Browse files

net: macb: add support for reporting SGMII inband link status 



This makes it possible to use in-band autonegotiation with
SGMII.

If using a device tree, this can be done by adding the managed =
"in-band-status" property to the gem node.

Signed-off-by: default avatarCharles Perry <charles.perry@microchip.com>
Link: https://patch.msgid.link/20260224202854.112813-3-charles.perry@microchip.com


Signed-off-by: default avatarJakub Kicinski <kuba@kernel.org>
parent 1338cfef

drivers/net/ethernet/cadence/macb_main.c

+6 −1
Original line number Diff line number Diff line
@@ -560,7 +560,12 @@ static int macb_usx_pcs_config(struct phylink_pcs *pcs, 
static void macb_pcs_get_state(struct phylink_pcs *pcs, unsigned int neg_mode,

			       struct phylink_link_state *state)

{

	state->link = 0;

	struct macb *bp = container_of(pcs, struct macb, phylink_sgmii_pcs);

	u16 bmsr, lpa;



	bmsr = gem_readl(bp, PCSSTS);

	lpa = gem_readl(bp, PCSANLPBASE);

	phylink_mii_c22_pcs_decode_state(state, neg_mode, bmsr, lpa);

}



static void macb_pcs_an_restart(struct phylink_pcs *pcs)