[PATCH net-next v3 09/12] net: dsa: lantiq_gswip: add vendor property to setup MII refclk output
From: Daniel Golle <daniel@makrotopia.org>
Date: 2025-10-26 23:47:28
Also in:
linux-devicetree, lkml
Subsystem:
lantiq / maxlinear / intel ethernet dsa drivers, networking drivers, networking [dsa], the rest · Maintainers:
Hauke Mehrtens, Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Andrew Lunn, Vladimir Oltean, Linus Torvalds
Read boolean Device Tree property "maxlinear,rmii-refclk-out" and switch the RMII reference clock to be a clock output rather than an input if it is set. Signed-off-by: Daniel Golle <daniel@makrotopia.org> --- drivers/net/dsa/lantiq/lantiq_gswip_common.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/net/dsa/lantiq/lantiq_gswip_common.c b/drivers/net/dsa/lantiq/lantiq_gswip_common.c
index 60a83093cd10..bf38ecc13f76 100644
--- a/drivers/net/dsa/lantiq/lantiq_gswip_common.c
+++ b/drivers/net/dsa/lantiq/lantiq_gswip_common.c@@ -1442,6 +1442,10 @@ static void gswip_phylink_mac_config(struct phylink_config *config, return; } + if (of_property_read_bool(dp->dn, "maxlinear,rmii-refclk-out") && + !(miicfg & GSWIP_MII_CFG_MODE_RGMII)) + miicfg |= GSWIP_MII_CFG_RMII_CLK; + gswip_mii_mask_cfg(priv, GSWIP_MII_CFG_MODE_MASK | GSWIP_MII_CFG_RMII_CLK | GSWIP_MII_CFG_RGMII_IBS | GSWIP_MII_CFG_LDCLKDIS,
--
2.51.1