[PATCH net-next v2 3/5] net: stmmac: eic7700: Use common RGMII delay handling
COLD24d
From: Jia Wang <wangjia@ultrarisc.com>
Date: 2026-09-07 07:47:33
Also in:
linux-arm-kernel, linux-devicetree, lkml
Subsystem:
networking drivers, stmmac ethernet driver, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Maxime Chevallier, Linus Torvalds
Describe the EIC7700 inherent TX delay through the common stmmac platform data and let stmmac_pltfr_probe() adjust the PHY interface mode. Keep the existing programmable TX and RX delay configuration in the EIC7700 glue driver. Signed-off-by: Jia Wang <wangjia@ultrarisc.com> --- drivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c | 13 ++----------- 1 file changed, 2 insertions(+), 11 deletions(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c
index eab8c13fbdcc..0d654ec07f33 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-eic7700.c@@ -198,18 +198,9 @@ static int eic7700_dwmac_probe(struct platform_device *pdev) /* * The MAC silicon unconditionally adds ~2 ns TX delay; prevent * the PHY from also adding TX delay to avoid doubling it. - * - * DT specifies rgmii-id (TX from MAC silicon, RX from PHY); - * override to rgmii-rxid so the PHY only adds its RX delay. + * The common platform code adjusts the PHY interface accordingly. */ - if (data->has_internal_tx_delay) { - plat_dat->phy_interface = - phy_fix_phy_mode_for_mac_delays(plat_dat->phy_interface, - true, false); - if (plat_dat->phy_interface == PHY_INTERFACE_MODE_NA) - return dev_err_probe(&pdev->dev, -EINVAL, - "phy interface mode is NA\n"); - } + plat_dat->has_internal_tx_delay = data->has_internal_tx_delay; /* Read rx-internal-delay-ps and update rx_clk delay */ if (!of_property_read_u32(pdev->dev.of_node,
--
2.34.1