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drivers: ethernet: stm32hal: Fixes source address control #99429

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Merged
fabiobaltieri merged 1 commit into from
Dec 10, 2025
Merged

drivers: ethernet: stm32hal: Fixes source address control #99429

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8 changes: 8 additions & 0 deletions drivers/ethernet/eth_stm32_hal_v2.c
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Original file line number Diff line number Diff line change
Expand Up @@ -679,6 +679,14 @@ void eth_stm32_set_mac_config(const struct device *dev, struct phy_link_state *s
#if DT_HAS_COMPAT_STATUS_OKAY(st_stm32n6_ethernet)
mac_config.PortSelect = PHY_LINK_IS_SPEED_1000M(state->speed) ? DISABLE : ENABLE;
#endif

/* Always disable hardware source address replacement.
* Zephyr network stack sets the source MAC address and
* therefore hardware replacement should not be enabled,
* since it may affect bridging applications, for example.
*/
mac_config.SourceAddrControl = ETH_SOURCEADDRESS_DISABLE;

hal_ret = HAL_ETH_SetMACConfig(heth, &mac_config);
if (hal_ret != HAL_OK) {
LOG_ERR("HAL_ETH_SetMACConfig failed: %d", hal_ret);
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