diff options
| author | Charles Perry <charles.perry@microchip.com> | 2026-02-24 23:28:53 +0300 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2026-02-27 06:19:24 +0300 |
| commit | 7f44b2acc5a111471d8a3ae0e809bd419c0237e0 (patch) | |
| tree | f4ae6a174f628f4240e28c83dea242fb20cbeb3d | |
| parent | 1338cfef1ff1b95891990f8677631a834c2cf22d (diff) | |
| download | linux-7f44b2acc5a111471d8a3ae0e809bd419c0237e0.tar.xz | |
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: Charles Perry <charles.perry@microchip.com>
Link: https://patch.msgid.link/20260224202854.112813-3-charles.perry@microchip.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
| -rw-r--r-- | drivers/net/ethernet/cadence/macb_main.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/net/ethernet/cadence/macb_main.c b/drivers/net/ethernet/cadence/macb_main.c index fc26e70e23d4..8c192d65eeeb 100644 --- a/drivers/net/ethernet/cadence/macb_main.c +++ b/drivers/net/ethernet/cadence/macb_main.c @@ -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) |