ravb: Exclude gPTP feature support for RZ/G2L

R-Car supports gPTP feature whereas RZ/G2L does not support it.
This patch excludes gtp feature support for RZ/G2L.
Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Reviewed-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/renesas/ravb_main.c

@@ -1403,6 +1403,7 @@ static int ravb_get_ts_info(struct net_device *ndev,
 			    struct ethtool_ts_info *info)
 {
 	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *hw_info = priv->info;
 
 	info->so_timestamping =
 		SOF_TIMESTAMPING_TX_SOFTWARE |
@@ -1416,6 +1417,7 @@ static int ravb_get_ts_info(struct net_device *ndev,
 		(1 << HWTSTAMP_FILTER_NONE) |
 		(1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) |
 		(1 << HWTSTAMP_FILTER_ALL);
+	if (hw_info->gptp || hw_info->ccc_gac)
 		info->phc_index = ptp_clock_index(priv->ptp.clock);
 
 	return 0;
@@ -1640,6 +1642,7 @@ static void ravb_tx_timeout_work(struct work_struct *work)
 static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 {
 	struct ravb_private *priv = netdev_priv(ndev);
+	const struct ravb_hw_info *info = priv->info;
 	unsigned int num_tx_desc = priv->num_tx_desc;
 	u16 q = skb_get_queue_mapping(skb);
 	struct ravb_tstamp_skb *ts_skb;
@@ -1716,6 +1719,7 @@ static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 	desc->dptr = cpu_to_le32(dma_addr);
 
 	/* TX timestamp required */
+	if (info->gptp || info->ccc_gac) {
 		if (q == RAVB_NC) {
 			ts_skb = kmalloc(sizeof(*ts_skb), GFP_ATOMIC);
 			if (!ts_skb) {
@@ -1738,6 +1742,7 @@ static netdev_tx_t ravb_start_xmit(struct sk_buff *skb, struct net_device *ndev)
 		}
 
 		skb_tx_timestamp(skb);
+	}
 	/* Descriptor type must be set after all the above writes */
 	dma_wmb();
 	if (num_tx_desc > 1) {
@@ -1858,11 +1863,13 @@ static int ravb_close(struct net_device *ndev)
 			   "device will be stopped after h/w processes are done.\n");
 
 	/* Clear the timestamp list */
+	if (info->gptp || info->ccc_gac) {
 		list_for_each_entry_safe(ts_skb, ts_skb2, &priv->ts_skb_list, list) {
 			list_del(&ts_skb->list);
 			kfree_skb(ts_skb->skb);
 			kfree(ts_skb);
 		}
+	}
 
 	/* PHY disconnect */
 	if (ndev->phydev) {
@@ -2207,9 +2214,11 @@ static void ravb_set_config_mode(struct net_device *ndev)
 		ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG);
 		/* Set CSEL value */
 		ravb_modify(ndev, CCC, CCC_CSEL, CCC_CSEL_HPB);
-	} else {
+	} else if (info->ccc_gac) {
 		ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG |
 			    CCC_GAC | CCC_CSEL_HPB);
+	} else {
+		ravb_modify(ndev, CCC, CCC_OPC, CCC_OPC_CONFIG);
 	}
 }
 
@@ -2395,6 +2404,7 @@ static int ravb_probe(struct platform_device *pdev)
 	/* Set AVB config mode */
 	ravb_set_config_mode(ndev);
 
+	if (info->gptp || info->ccc_gac) {
 		/* Set GTI value */
 		error = ravb_set_gti(ndev);
 		if (error)
@@ -2402,6 +2412,7 @@ static int ravb_probe(struct platform_device *pdev)
 
 		/* Request GTI loading */
 		ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI);
+	}
 
 	if (info->internal_delay) {
 		ravb_parse_delay_mode(np, ndev);
@@ -2602,6 +2613,7 @@ static int __maybe_unused ravb_resume(struct device *dev)
 	/* Set AVB config mode */
 	ravb_set_config_mode(ndev);
 
+	if (info->gptp || info->ccc_gac) {
 		/* Set GTI value */
 		ret = ravb_set_gti(ndev);
 		if (ret)
@@ -2609,6 +2621,7 @@ static int __maybe_unused ravb_resume(struct device *dev)
 
 		/* Request GTI loading */
 		ravb_modify(ndev, GCCR, GCCR_LTI, GCCR_LTI);
+	}
 
 	if (info->internal_delay)
 		ravb_set_delay_mode(ndev);