Merge branch 'net-ethernet-ti-am65-cpsw-update-and-enable-sr2-0-soc'

Grygorii Strashko says:

====================
net: ethernet: ti: am65-cpsw: update and enable sr2.0 soc

This series contains set of improvements for TI AM654x/J721E CPSW2G driver and
adds support for TI AM654x SR2.0 SoC.

Patch 1: adds vlans restoration after "if down/up"
Patches 2-5: improvments
Patch 6: adds support for TI AM654x SR2.0 SoC which allows to disable errata i2027 W/A.
By default, errata i2027 W/A (TX csum offload disabled) is enabled on AM654x SoC
for backward compatibility, unless SR2.0 SoC is identified using SOC BUS framework.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/ti/am65-cpsw-ethtool.c

@@ -445,7 +445,7 @@ static int am65_cpsw_set_channels(struct net_device *ndev,
 	/* Check if interface is up. Can change the num queues when
 	 * the interface is down.
 	 */
-	if (netif_running(ndev))
+	if (common->usage_count)
 		return -EBUSY;
 
 	am65_cpsw_nuss_remove_tx_chns(common);
@@ -734,14 +734,16 @@ static int am65_cpsw_set_ethtool_priv_flags(struct net_device *ndev, u32 flags)
 
 	rrobin = !!(flags & AM65_CPSW_PRIV_P0_RX_PTYPE_RROBIN);
 
+	if (common->usage_count)
+		return -EBUSY;
+
 	if (common->est_enabled && rrobin) {
 		netdev_err(ndev,
 			   "p0-rx-ptype-rrobin flag conflicts with QOS\n");
 		return -EINVAL;
 	}
 
 	common->pf_p0_rx_ptype_rrobin = rrobin;
-	am65_cpsw_nuss_set_p0_ptype(common);
 
 	return 0;
 }

drivers/net/ethernet/ti/am65-cpsw-nuss.c

@@ -23,6 +23,7 @@
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 #include <linux/mfd/syscon.h>
+#include <linux/sys_soc.h>
 #include <linux/dma/ti-cppi5.h>
 #include <linux/dma/k3-udma-glue.h>
 
@@ -148,10 +149,11 @@ static void am65_cpsw_nuss_get_ver(struct am65_cpsw_common *common)
 	common->nuss_ver = readl(common->ss_base);
 	common->cpsw_ver = readl(common->cpsw_base);
 	dev_info(common->dev,
-		 "initializing am65 cpsw nuss version 0x%08X, cpsw version 0x%08X Ports: %u\n",
+		 "initializing am65 cpsw nuss version 0x%08X, cpsw version 0x%08X Ports: %u quirks:%08x\n",
 		common->nuss_ver,
 		common->cpsw_ver,
-		common->port_num + 1);
+		common->port_num + 1,
+		common->pdata.quirks);
 }
 
 void am65_cpsw_nuss_adjust_link(struct net_device *ndev)
@@ -223,6 +225,9 @@ static int am65_cpsw_nuss_ndo_slave_add_vid(struct net_device *ndev,
 	u32 port_mask, unreg_mcast = 0;
 	int ret;
 
+	if (!netif_running(ndev) || !vid)
+		return 0;
+
 	ret = pm_runtime_get_sync(common->dev);
 	if (ret < 0) {
 		pm_runtime_put_noidle(common->dev);
@@ -246,6 +251,9 @@ static int am65_cpsw_nuss_ndo_slave_kill_vid(struct net_device *ndev,
 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
 	int ret;
 
+	if (!netif_running(ndev) || !vid)
+		return 0;
+
 	ret = pm_runtime_get_sync(common->dev);
 	if (ret < 0) {
 		pm_runtime_put_noidle(common->dev);
@@ -571,6 +579,16 @@ static int am65_cpsw_nuss_ndo_slave_stop(struct net_device *ndev)
 	return 0;
 }
 
+static int cpsw_restore_vlans(struct net_device *vdev, int vid, void *arg)
+{
+	struct am65_cpsw_port *port = arg;
+
+	if (!vdev)
+		return 0;
+
+	return am65_cpsw_nuss_ndo_slave_add_vid(port->ndev, 0, vid);
+}
+
 static int am65_cpsw_nuss_ndo_slave_open(struct net_device *ndev)
 {
 	struct am65_cpsw_common *common = am65_ndev_to_common(ndev);
@@ -644,6 +662,9 @@ static int am65_cpsw_nuss_ndo_slave_open(struct net_device *ndev)
 		}
 	}
 
+	/* restore vlan configurations */
+	vlan_for_each(ndev, cpsw_restore_vlans, port);
+
 	phy_attached_info(port->slave.phy);
 	phy_start(port->slave.phy);
 
@@ -1749,6 +1770,10 @@ static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common)
 				common->cpsw_base + AM65_CPSW_NU_FRAM_BASE +
 				(AM65_CPSW_NU_FRAM_PORT_OFFSET * (port_id - 1));
 
+		port->slave.mac_sl = cpsw_sl_get("am65", dev, port->port_base);
+		if (IS_ERR(port->slave.mac_sl))
+			return PTR_ERR(port->slave.mac_sl);
+
 		port->disabled = !of_device_is_available(port_np);
 		if (port->disabled)
 			continue;
@@ -1792,10 +1817,6 @@ static int am65_cpsw_nuss_init_slave_ports(struct am65_cpsw_common *common)
 			return ret;
 		}
 
-		port->slave.mac_sl = cpsw_sl_get("am65", dev, port->port_base);
-		if (IS_ERR(port->slave.mac_sl))
-			return PTR_ERR(port->slave.mac_sl);
-
 		mac_addr = of_get_mac_address(port_np);
 		if (!IS_ERR(mac_addr)) {
 			ether_addr_copy(port->slave.mac_addr, mac_addr);
@@ -1858,7 +1879,7 @@ static int am65_cpsw_nuss_init_ndev_2g(struct am65_cpsw_common *common)
 	port->ndev->ethtool_ops = &am65_cpsw_ethtool_ops_slave;
 
 	/* Disable TX checksum offload by default due to HW bug */
-	if (common->pdata->quirks & AM65_CPSW_QUIRK_I2027_NO_TX_CSUM)
+	if (common->pdata.quirks & AM65_CPSW_QUIRK_I2027_NO_TX_CSUM)
 		port->ndev->features &= ~NETIF_F_HW_CSUM;
 
 	ndev_priv->stats = netdev_alloc_pcpu_stats(struct am65_cpsw_ndev_stats);
@@ -1875,8 +1896,6 @@ static int am65_cpsw_nuss_init_ndev_2g(struct am65_cpsw_common *common)
 	netif_napi_add(port->ndev, &common->napi_rx,
 		       am65_cpsw_nuss_rx_poll, NAPI_POLL_WEIGHT);
 
-	common->pf_p0_rx_ptype_rrobin = false;
-
 	return ret;
 }
 
@@ -1964,21 +1983,50 @@ static void am65_cpsw_nuss_cleanup_ndev(struct am65_cpsw_common *common)
 	}
 }
 
+struct am65_cpsw_soc_pdata {
+	u32	quirks_dis;
+};
+
+static const struct am65_cpsw_soc_pdata am65x_soc_sr2_0 = {
+	.quirks_dis = AM65_CPSW_QUIRK_I2027_NO_TX_CSUM,
+};
+
+static const struct soc_device_attribute am65_cpsw_socinfo[] = {
+	{ .family = "AM65X",
+	  .revision = "SR2.0",
+	  .data = &am65x_soc_sr2_0
+	},
+	{/* sentinel */}
+};
+
 static const struct am65_cpsw_pdata am65x_sr1_0 = {
 	.quirks = AM65_CPSW_QUIRK_I2027_NO_TX_CSUM,
 };
 
-static const struct am65_cpsw_pdata j721e_sr1_0 = {
+static const struct am65_cpsw_pdata j721e_pdata = {
 	.quirks = 0,
 };
 
 static const struct of_device_id am65_cpsw_nuss_of_mtable[] = {
-	{ .compatible = "ti,am654-cpsw-nuss", .data = &am65x_sr1_0 },
-	{ .compatible = "ti,j721e-cpsw-nuss", .data = &j721e_sr1_0 },
+	{ .compatible = "ti,am654-cpsw-nuss", .data = &am65x_sr1_0},
+	{ .compatible = "ti,j721e-cpsw-nuss", .data = &j721e_pdata},
 	{ /* sentinel */ },
 };
 MODULE_DEVICE_TABLE(of, am65_cpsw_nuss_of_mtable);
 
+static void am65_cpsw_nuss_apply_socinfo(struct am65_cpsw_common *common)
+{
+	const struct soc_device_attribute *soc;
+
+	soc = soc_device_match(am65_cpsw_socinfo);
+	if (soc && soc->data) {
+		const struct am65_cpsw_soc_pdata *socdata = soc->data;
+
+		/* disable quirks */
+		common->pdata.quirks &= ~socdata->quirks_dis;
+	}
+}
+
 static int am65_cpsw_nuss_probe(struct platform_device *pdev)
 {
 	struct cpsw_ale_params ale_params = { 0 };
@@ -1997,7 +2045,9 @@ static int am65_cpsw_nuss_probe(struct platform_device *pdev)
 	of_id = of_match_device(am65_cpsw_nuss_of_mtable, dev);
 	if (!of_id)
 		return -EINVAL;
-	common->pdata = of_id->data;
+	common->pdata = *(const struct am65_cpsw_pdata *)of_id->data;
+
+	am65_cpsw_nuss_apply_socinfo(common);
 
 	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cpsw_nuss");
 	common->ss_base = devm_ioremap_resource(&pdev->dev, res);
@@ -2019,6 +2069,7 @@ static int am65_cpsw_nuss_probe(struct platform_device *pdev)
 	common->rx_flow_id_base = -1;
 	init_completion(&common->tdown_complete);
 	common->tx_ch_num = 1;
+	common->pf_p0_rx_ptype_rrobin = false;
 
 	ret = dma_coerce_mask_and_coherent(dev, DMA_BIT_MASK(48));
 	if (ret) {

drivers/net/ethernet/ti/am65-cpsw-nuss.h

@@ -82,7 +82,7 @@ struct am65_cpsw_pdata {
 struct am65_cpsw_common {
 	struct device		*dev;
 	struct device		*mdio_dev;
-	const struct am65_cpsw_pdata *pdata;
+	struct am65_cpsw_pdata	pdata;
 
 	void __iomem		*ss_base;
 	void __iomem		*cpsw_base;