diff --git a/drivers/net/wireless/ath/ath12k/wmi.c b/drivers/net/wireless/ath/ath12k/wmi.c
index 84a31b953db8..e7689ee3e701 100644
--- a/drivers/net/wireless/ath/ath12k/wmi.c
+++ b/drivers/net/wireless/ath/ath12k/wmi.c
@@ -5154,6 +5154,7 @@ static void ath12k_wmi_eht_caps_parse(struct ath12k_pdev *pdev, u32 band,
 				       __le32 cap_info_internal)
 {
 	struct ath12k_band_cap *cap_band = &pdev->cap.band[band];
+	u8 *phy_cap = (u8 *)&cap_band->eht_cap_phy_info[0];
 	u32 support_320mhz;
 	u8 i;
 
@@ -5167,8 +5168,22 @@ static void ath12k_wmi_eht_caps_parse(struct ath12k_pdev *pdev, u32 band,
 	for (i = 0; i < WMI_MAX_EHTCAP_PHY_SIZE; i++)
 		cap_band->eht_cap_phy_info[i] = le32_to_cpu(cap_phy_info[i]);
 
-	if (band == NL80211_BAND_6GHZ)
+	if (band == NL80211_BAND_6GHZ) {
 		cap_band->eht_cap_phy_info[0] |= support_320mhz;
+	} else {
+		/*
+		 * Firmware may report 6 GHz/320 MHz specific capabilities for
+		 * non-6 GHz bands, so explicitly clear them.
+		 */
+		phy_cap[0] &= ~IEEE80211_EHT_PHY_CAP0_320MHZ_IN_6GHZ;
+		phy_cap[1] &= ~IEEE80211_EHT_PHY_CAP1_BEAMFORMEE_SS_320MHZ_MASK;
+		phy_cap[2] &= ~IEEE80211_EHT_PHY_CAP2_SOUNDING_DIM_320MHZ_MASK;
+		phy_cap[3] &= ~IEEE80211_EHT_PHY_CAP3_SOUNDING_DIM_320MHZ_MASK;
+		phy_cap[6] &= ~IEEE80211_EHT_PHY_CAP6_MCS15_SUPP_320MHZ;
+		phy_cap[6] &= ~IEEE80211_EHT_PHY_CAP6_EHT_DUP_6GHZ_SUPP;
+		phy_cap[7] &= ~IEEE80211_EHT_PHY_CAP7_NON_OFDMA_UL_MU_MIMO_320MHZ;
+		phy_cap[7] &= ~IEEE80211_EHT_PHY_CAP7_MU_BEAMFORMER_320MHZ;
+	}
 
 	cap_band->eht_mcs_20_only = le32_to_cpu(supp_mcs[0]);
 	cap_band->eht_mcs_80 = le32_to_cpu(supp_mcs[1]);