[PATCH RFC net-next 8/9] net: stmmac: qcom-ethqos: use phy interface mode for inband
From: Russell King (Oracle) <hidden>
Date: 2026-02-12 00:18:48
Also in:
imx, linux-arm-kernel, linux-arm-msm
Subsystem:
networking drivers, qualcomm ethqos ethernet driver, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Mohd Ayaan Anwar, Linus Torvalds
qcom-ethqos currently forces inband to be enabled for the Cisco SGMII speeds (1G, 100M and 10M) but not for 2500BASE-X (2.5G). Rather than using the speed to determine the forced inband state, use phylink's PHY interface mode which will switch between SGMII for the 10M, 100M and 1G speeds, and 2500BASE-X for 2.5G. Signed-off-by: Russell King (Oracle) <redacted> --- .../stmicro/stmmac/dwmac-qcom-ethqos.c | 18 +++++++----------- 1 file changed, 7 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index e2dd334ffd31..cd6d1660bdb2 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c@@ -615,30 +615,26 @@ static void ethqos_configure_sgmii(struct qcom_ethqos *ethqos, switch (speed) { case SPEED_2500: - rgmii_setmask(ethqos, RGMII_CONFIG2_RGMII_CLK_SEL_CFG, - RGMII_IO_MACRO_CONFIG2); - ethqos_set_serdes_speed(ethqos, SPEED_2500); - ethqos_pcs_set_inband(priv, false); - break; case SPEED_1000: rgmii_setmask(ethqos, RGMII_CONFIG2_RGMII_CLK_SEL_CFG, RGMII_IO_MACRO_CONFIG2); - ethqos_set_serdes_speed(ethqos, SPEED_1000); - ethqos_pcs_set_inband(priv, true); break; case SPEED_100: - ethqos_set_serdes_speed(ethqos, SPEED_1000); - ethqos_pcs_set_inband(priv, true); break; case SPEED_10: rgmii_updatel(ethqos, RGMII_CONFIG_SGMII_CLK_DVDR, FIELD_PREP(RGMII_CONFIG_SGMII_CLK_DVDR, SGMII_10M_RX_CLK_DVDR), RGMII_IO_MACRO_CONFIG); - ethqos_set_serdes_speed(ethqos, SPEED_1000); - ethqos_pcs_set_inband(priv, true); break; } + + if (interface == PHY_INTERFACE_MODE_SGMII) + ethqos_set_serdes_speed(ethqos, SPEED_1000); + else + ethqos_set_serdes_speed(ethqos, SPEED_2500); + + ethqos_pcs_set_inband(priv, interface == PHY_INTERFACE_MODE_SGMII); } static void ethqos_configure(struct qcom_ethqos *ethqos,
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2.47.3