diff --git a/drivers/net/ethernet/renesas/ravb.h b/drivers/net/ethernet/renesas/ravb.h
index fd59155a70e1..69a3d93d9d60 100644
--- a/drivers/net/ethernet/renesas/ravb.h
+++ b/drivers/net/ethernet/renesas/ravb.h
@@ -1027,6 +1027,7 @@ struct ravb_hw_info {
 	int stats_len;
 	size_t max_rx_len;
 	u32 tccr_mask;
+	u32 tx_max_frame_size;
 	u32 rx_max_buf_size;
 	unsigned aligned_tx: 1;
 
diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 853c2a0d4e25..443b98228c77 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -2437,6 +2437,7 @@ static const struct ravb_hw_info ravb_gen3_hw_info = {
 	.stats_len = ARRAY_SIZE(ravb_gstrings_stats),
 	.max_rx_len = RX_BUF_SZ + RAVB_ALIGN - 1,
 	.tccr_mask = TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3,
+	.tx_max_frame_size = SZ_2K,
 	.rx_max_buf_size = SZ_2K,
 	.internal_delay = 1,
 	.tx_counters = 1,
@@ -2463,6 +2464,7 @@ static const struct ravb_hw_info ravb_gen2_hw_info = {
 	.stats_len = ARRAY_SIZE(ravb_gstrings_stats),
 	.max_rx_len = RX_BUF_SZ + RAVB_ALIGN - 1,
 	.tccr_mask = TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3,
+	.tx_max_frame_size = SZ_2K,
 	.rx_max_buf_size = SZ_2K,
 	.aligned_tx = 1,
 	.gptp = 1,
@@ -2509,6 +2511,7 @@ static const struct ravb_hw_info gbeth_hw_info = {
 	.stats_len = ARRAY_SIZE(ravb_gstrings_stats_gbeth),
 	.max_rx_len = ALIGN(GBETH_RX_BUFF_MAX, RAVB_ALIGN),
 	.tccr_mask = TCCR_TSRQ0,
+	.tx_max_frame_size = 1522,
 	.rx_max_buf_size = SZ_8K,
 	.aligned_tx = 1,
 	.tx_counters = 1,
@@ -2780,7 +2783,7 @@ static int ravb_probe(struct platform_device *pdev)
 		clk_prepare_enable(priv->gptp_clk);
 	}
 
-	ndev->max_mtu = info->rx_max_buf_size - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN);
+	ndev->max_mtu = info->tx_max_frame_size - (ETH_HLEN + VLAN_HLEN + ETH_FCS_LEN);
 	ndev->min_mtu = ETH_MIN_MTU;
 
 	/* FIXME: R-Car Gen2 has 4byte alignment restriction for tx buffer