net: stmmac: Add MAC related callbacks for XGMAC2

Add the MAC related callbacks for the new IP block XGMAC2.

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Cc: David S. Miller <davem@davemloft.net>
Cc: Joao Pinto <jpinto@synopsys.com>
Cc: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Cc: Alexandre Torgue <alexandre.torgue@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/ethernet/stmicro/stmmac/Makefile

@@ -5,7 +5,7 @@ stmmac-objs:= stmmac_main.o stmmac_ethtool.o stmmac_mdio.o ring_mode.o	\
 	      dwmac100_core.o dwmac100_dma.o enh_desc.o norm_desc.o	\
 	      mmc_core.o stmmac_hwtstamp.o stmmac_ptp.o dwmac4_descs.o	\
 	      dwmac4_dma.o dwmac4_lib.o dwmac4_core.o dwmac5.o hwif.o \
-	      stmmac_tc.o $(stmmac-y)
+	      stmmac_tc.o dwxgmac2_core.o $(stmmac-y)
 
 # Ordering matters. Generic driver must be last.
 obj-$(CONFIG_STMMAC_PLATFORM)	+= stmmac-platform.o

drivers/net/ethernet/stmicro/stmmac/common.h

@@ -400,6 +400,8 @@ struct mac_link {
 	u32 speed10;
 	u32 speed100;
 	u32 speed1000;
+	u32 speed2500;
+	u32 speed10000;
 	u32 duplex;
 };
 
@@ -441,6 +443,7 @@ struct stmmac_rx_routing {
 int dwmac100_setup(struct stmmac_priv *priv);
 int dwmac1000_setup(struct stmmac_priv *priv);
 int dwmac4_setup(struct stmmac_priv *priv);
+int dwxgmac2_setup(struct stmmac_priv *priv);
 
 void stmmac_set_mac_addr(void __iomem *ioaddr, u8 addr[6],
 			 unsigned int high, unsigned int low);

drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h

@@ -0,0 +1,141 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (c) 2018 Synopsys, Inc. and/or its affiliates.
+ * stmmac XGMAC definitions.
+ */
+
+#ifndef __STMMAC_DWXGMAC2_H__
+#define __STMMAC_DWXGMAC2_H__
+
+#include "common.h"
+
+/* Misc */
+#define XGMAC_JUMBO_LEN			16368
+
+/* MAC Registers */
+#define XGMAC_TX_CONFIG			0x00000000
+#define XGMAC_CONFIG_SS_OFF		29
+#define XGMAC_CONFIG_SS_MASK		GENMASK(30, 29)
+#define XGMAC_CONFIG_SS_10000		(0x0 << XGMAC_CONFIG_SS_OFF)
+#define XGMAC_CONFIG_SS_2500		(0x2 << XGMAC_CONFIG_SS_OFF)
+#define XGMAC_CONFIG_SS_1000		(0x3 << XGMAC_CONFIG_SS_OFF)
+#define XGMAC_CONFIG_SARC		GENMASK(22, 20)
+#define XGMAC_CONFIG_SARC_SHIFT		20
+#define XGMAC_CONFIG_JD			BIT(16)
+#define XGMAC_CONFIG_TE			BIT(0)
+#define XGMAC_CORE_INIT_TX		(XGMAC_CONFIG_JD)
+#define XGMAC_RX_CONFIG			0x00000004
+#define XGMAC_CONFIG_ARPEN		BIT(31)
+#define XGMAC_CONFIG_GPSL		GENMASK(29, 16)
+#define XGMAC_CONFIG_GPSL_SHIFT		16
+#define XGMAC_CONFIG_S2KP		BIT(11)
+#define XGMAC_CONFIG_IPC		BIT(9)
+#define XGMAC_CONFIG_JE			BIT(8)
+#define XGMAC_CONFIG_WD			BIT(7)
+#define XGMAC_CONFIG_GPSLCE		BIT(6)
+#define XGMAC_CONFIG_CST		BIT(2)
+#define XGMAC_CONFIG_ACS		BIT(1)
+#define XGMAC_CONFIG_RE			BIT(0)
+#define XGMAC_CORE_INIT_RX		0
+#define XGMAC_PACKET_FILTER		0x00000008
+#define XGMAC_FILTER_RA			BIT(31)
+#define XGMAC_FILTER_PM			BIT(4)
+#define XGMAC_FILTER_HMC		BIT(2)
+#define XGMAC_FILTER_PR			BIT(0)
+#define XGMAC_HASH_TABLE(x)		(0x00000010 + (x) * 4)
+#define XGMAC_RXQ_CTRL0			0x000000a0
+#define XGMAC_RXQEN(x)			GENMASK((x) * 2 + 1, (x) * 2)
+#define XGMAC_RXQEN_SHIFT(x)		((x) * 2)
+#define XGMAC_RXQ_CTRL2			0x000000a8
+#define XGMAC_RXQ_CTRL3			0x000000ac
+#define XGMAC_PSRQ(x)			GENMASK((x) * 8 + 7, (x) * 8)
+#define XGMAC_PSRQ_SHIFT(x)		((x) * 8)
+#define XGMAC_INT_STATUS		0x000000b0
+#define XGMAC_PMTIS			BIT(4)
+#define XGMAC_INT_EN			0x000000b4
+#define XGMAC_TSIE			BIT(12)
+#define XGMAC_LPIIE			BIT(5)
+#define XGMAC_PMTIE			BIT(4)
+#define XGMAC_INT_DEFAULT_EN		(XGMAC_LPIIE | XGMAC_PMTIE | XGMAC_TSIE)
+#define XGMAC_Qx_TX_FLOW_CTRL(x)	(0x00000070 + (x) * 4)
+#define XGMAC_PT			GENMASK(31, 16)
+#define XGMAC_PT_SHIFT			16
+#define XGMAC_TFE			BIT(1)
+#define XGMAC_RX_FLOW_CTRL		0x00000090
+#define XGMAC_RFE			BIT(0)
+#define XGMAC_PMT			0x000000c0
+#define XGMAC_GLBLUCAST			BIT(9)
+#define XGMAC_RWKPKTEN			BIT(2)
+#define XGMAC_MGKPKTEN			BIT(1)
+#define XGMAC_PWRDWN			BIT(0)
+#define XGMAC_HW_FEATURE0		0x0000011c
+#define XGMAC_HWFEAT_SAVLANINS		BIT(27)
+#define XGMAC_HWFEAT_RXCOESEL		BIT(16)
+#define XGMAC_HWFEAT_TXCOESEL		BIT(14)
+#define XGMAC_HWFEAT_TSSEL		BIT(12)
+#define XGMAC_HWFEAT_AVSEL		BIT(11)
+#define XGMAC_HWFEAT_RAVSEL		BIT(10)
+#define XGMAC_HWFEAT_ARPOFFSEL		BIT(9)
+#define XGMAC_HWFEAT_MGKSEL		BIT(7)
+#define XGMAC_HWFEAT_RWKSEL		BIT(6)
+#define XGMAC_HWFEAT_GMIISEL		BIT(1)
+#define XGMAC_HW_FEATURE1		0x00000120
+#define XGMAC_HWFEAT_TSOEN		BIT(18)
+#define XGMAC_HWFEAT_TXFIFOSIZE		GENMASK(10, 6)
+#define XGMAC_HWFEAT_RXFIFOSIZE		GENMASK(4, 0)
+#define XGMAC_HW_FEATURE2		0x00000124
+#define XGMAC_HWFEAT_PPSOUTNUM		GENMASK(26, 24)
+#define XGMAC_HWFEAT_TXCHCNT		GENMASK(21, 18)
+#define XGMAC_HWFEAT_RXCHCNT		GENMASK(15, 12)
+#define XGMAC_HWFEAT_TXQCNT		GENMASK(9, 6)
+#define XGMAC_HWFEAT_RXQCNT		GENMASK(3, 0)
+#define XGMAC_MDIO_ADDR			0x00000200
+#define XGMAC_MDIO_DATA			0x00000204
+#define XGMAC_MDIO_C22P			0x00000220
+#define XGMAC_ADDR0_HIGH		0x00000300
+#define XGMAC_AE			BIT(31)
+#define XGMAC_DCS			GENMASK(19, 16)
+#define XGMAC_DCS_SHIFT			16
+#define XGMAC_ADDR0_LOW			0x00000304
+#define XGMAC_ARP_ADDR			0x00000c10
+#define XGMAC_TIMESTAMP_STATUS		0x00000d20
+#define XGMAC_TXTSC			BIT(15)
+#define XGMAC_TXTIMESTAMP_NSEC		0x00000d30
+#define XGMAC_TXTSSTSLO			GENMASK(30, 0)
+#define XGMAC_TXTIMESTAMP_SEC		0x00000d34
+
+/* MTL Registers */
+#define XGMAC_MTL_OPMODE		0x00001000
+#define XGMAC_ETSALG			GENMASK(6, 5)
+#define XGMAC_WRR			(0x0 << 5)
+#define XGMAC_WFQ			(0x1 << 5)
+#define XGMAC_DWRR			(0x2 << 5)
+#define XGMAC_RAA			BIT(2)
+#define XGMAC_MTL_INT_STATUS		0x00001020
+#define XGMAC_MTL_RXQ_DMA_MAP0		0x00001030
+#define XGMAC_MTL_RXQ_DMA_MAP1		0x00001034
+#define XGMAC_QxMDMACH(x)		GENMASK((x) * 8 + 3, (x) * 8)
+#define XGMAC_QxMDMACH_SHIFT(x)		((x) * 8)
+#define XGMAC_MTL_TXQ_OPMODE(x)		(0x00001100 + (0x80 * (x)))
+#define XGMAC_TQS			GENMASK(25, 16)
+#define XGMAC_TQS_SHIFT			16
+#define XGMAC_TTC			GENMASK(6, 4)
+#define XGMAC_TTC_SHIFT			4
+#define XGMAC_TXQEN			GENMASK(3, 2)
+#define XGMAC_TXQEN_SHIFT		2
+#define XGMAC_TSF			BIT(1)
+#define XGMAC_MTL_RXQ_OPMODE(x)		(0x00001140 + (0x80 * (x)))
+#define XGMAC_RQS			GENMASK(25, 16)
+#define XGMAC_RQS_SHIFT			16
+#define XGMAC_EHFC			BIT(7)
+#define XGMAC_RSF			BIT(5)
+#define XGMAC_RTC			GENMASK(1, 0)
+#define XGMAC_RTC_SHIFT			0
+#define XGMAC_MTL_QINTEN(x)		(0x00001170 + (0x80 * (x)))
+#define XGMAC_RXOIE			BIT(16)
+#define XGMAC_MTL_QINT_STATUS(x)	(0x00001174 + (0x80 * (x)))
+#define XGMAC_RXOVFIS			BIT(16)
+#define XGMAC_ABPSIS			BIT(1)
+#define XGMAC_TXUNFIS			BIT(0)
+
+#endif /* __STMMAC_DWXGMAC2_H__ */

drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c

@@ -0,0 +1,371 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/*
+ * Copyright (c) 2018 Synopsys, Inc. and/or its affiliates.
+ * stmmac XGMAC support.
+ */
+
+#include "stmmac.h"
+#include "dwxgmac2.h"
+
+static void dwxgmac2_core_init(struct mac_device_info *hw,
+			       struct net_device *dev)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	int mtu = dev->mtu;
+	u32 tx, rx;
+
+	tx = readl(ioaddr + XGMAC_TX_CONFIG);
+	rx = readl(ioaddr + XGMAC_RX_CONFIG);
+
+	tx |= XGMAC_CORE_INIT_TX;
+	rx |= XGMAC_CORE_INIT_RX;
+
+	if (mtu >= 9000) {
+		rx |= XGMAC_CONFIG_GPSLCE;
+		rx |= XGMAC_JUMBO_LEN << XGMAC_CONFIG_GPSL_SHIFT;
+		rx |= XGMAC_CONFIG_WD;
+	} else if (mtu > 2000) {
+		rx |= XGMAC_CONFIG_JE;
+	} else if (mtu > 1500) {
+		rx |= XGMAC_CONFIG_S2KP;
+	}
+
+	if (hw->ps) {
+		tx |= XGMAC_CONFIG_TE;
+		tx &= ~hw->link.speed_mask;
+
+		switch (hw->ps) {
+		case SPEED_10000:
+			tx |= hw->link.speed10000;
+			break;
+		case SPEED_2500:
+			tx |= hw->link.speed2500;
+			break;
+		case SPEED_1000:
+		default:
+			tx |= hw->link.speed1000;
+			break;
+		}
+	}
+
+	writel(tx, ioaddr + XGMAC_TX_CONFIG);
+	writel(rx, ioaddr + XGMAC_RX_CONFIG);
+	writel(XGMAC_INT_DEFAULT_EN, ioaddr + XGMAC_INT_EN);
+}
+
+static void dwxgmac2_set_mac(void __iomem *ioaddr, bool enable)
+{
+	u32 tx = readl(ioaddr + XGMAC_TX_CONFIG);
+	u32 rx = readl(ioaddr + XGMAC_RX_CONFIG);
+
+	if (enable) {
+		tx |= XGMAC_CONFIG_TE;
+		rx |= XGMAC_CONFIG_RE;
+	} else {
+		tx &= ~XGMAC_CONFIG_TE;
+		rx &= ~XGMAC_CONFIG_RE;
+	}
+
+	writel(tx, ioaddr + XGMAC_TX_CONFIG);
+	writel(rx, ioaddr + XGMAC_RX_CONFIG);
+}
+
+static int dwxgmac2_rx_ipc(struct mac_device_info *hw)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	u32 value;
+
+	value = readl(ioaddr + XGMAC_RX_CONFIG);
+	if (hw->rx_csum)
+		value |= XGMAC_CONFIG_IPC;
+	else
+		value &= ~XGMAC_CONFIG_IPC;
+	writel(value, ioaddr + XGMAC_RX_CONFIG);
+
+	return !!(readl(ioaddr + XGMAC_RX_CONFIG) & XGMAC_CONFIG_IPC);
+}
+
+static void dwxgmac2_rx_queue_enable(struct mac_device_info *hw, u8 mode,
+				     u32 queue)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	u32 value;
+
+	value = readl(ioaddr + XGMAC_RXQ_CTRL0) & ~XGMAC_RXQEN(queue);
+	if (mode == MTL_QUEUE_AVB)
+		value |= 0x1 << XGMAC_RXQEN_SHIFT(queue);
+	else if (mode == MTL_QUEUE_DCB)
+		value |= 0x2 << XGMAC_RXQEN_SHIFT(queue);
+	writel(value, ioaddr + XGMAC_RXQ_CTRL0);
+}
+
+static void dwxgmac2_rx_queue_prio(struct mac_device_info *hw, u32 prio,
+				   u32 queue)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	u32 value, reg;
+
+	reg = (queue < 4) ? XGMAC_RXQ_CTRL2 : XGMAC_RXQ_CTRL3;
+
+	value = readl(ioaddr + reg);
+	value &= ~XGMAC_PSRQ(queue);
+	value |= (prio << XGMAC_PSRQ_SHIFT(queue)) & XGMAC_PSRQ(queue);
+
+	writel(value, ioaddr + reg);
+}
+
+static void dwxgmac2_prog_mtl_rx_algorithms(struct mac_device_info *hw,
+					    u32 rx_alg)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	u32 value;
+
+	value = readl(ioaddr + XGMAC_MTL_OPMODE);
+	value &= ~XGMAC_RAA;
+
+	switch (rx_alg) {
+	case MTL_RX_ALGORITHM_SP:
+		break;
+	case MTL_RX_ALGORITHM_WSP:
+		value |= XGMAC_RAA;
+		break;
+	default:
+		break;
+	}
+
+	writel(value, ioaddr + XGMAC_MTL_OPMODE);
+}
+
+static void dwxgmac2_prog_mtl_tx_algorithms(struct mac_device_info *hw,
+					    u32 tx_alg)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	u32 value;
+
+	value = readl(ioaddr + XGMAC_MTL_OPMODE);
+	value &= ~XGMAC_ETSALG;
+
+	switch (tx_alg) {
+	case MTL_TX_ALGORITHM_WRR:
+		value |= XGMAC_WRR;
+		break;
+	case MTL_TX_ALGORITHM_WFQ:
+		value |= XGMAC_WFQ;
+		break;
+	case MTL_TX_ALGORITHM_DWRR:
+		value |= XGMAC_DWRR;
+		break;
+	default:
+		break;
+	}
+
+	writel(value, ioaddr + XGMAC_MTL_OPMODE);
+}
+
+static void dwxgmac2_map_mtl_to_dma(struct mac_device_info *hw, u32 queue,
+				    u32 chan)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	u32 value, reg;
+
+	reg = (queue < 4) ? XGMAC_MTL_RXQ_DMA_MAP0 : XGMAC_MTL_RXQ_DMA_MAP1;
+
+	value = readl(ioaddr + reg);
+	value &= ~XGMAC_QxMDMACH(queue);
+	value |= (chan << XGMAC_QxMDMACH_SHIFT(queue)) & XGMAC_QxMDMACH(queue);
+
+	writel(value, ioaddr + reg);
+}
+
+static int dwxgmac2_host_irq_status(struct mac_device_info *hw,
+				    struct stmmac_extra_stats *x)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	u32 stat, en;
+
+	en = readl(ioaddr + XGMAC_INT_EN);
+	stat = readl(ioaddr + XGMAC_INT_STATUS);
+
+	stat &= en;
+
+	if (stat & XGMAC_PMTIS) {
+		x->irq_receive_pmt_irq_n++;
+		readl(ioaddr + XGMAC_PMT);
+	}
+
+	return 0;
+}
+
+static int dwxgmac2_host_mtl_irq_status(struct mac_device_info *hw, u32 chan)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	int ret = 0;
+	u32 status;
+
+	status = readl(ioaddr + XGMAC_MTL_INT_STATUS);
+	if (status & BIT(chan)) {
+		u32 chan_status = readl(ioaddr + XGMAC_MTL_QINT_STATUS(chan));
+
+		if (chan_status & XGMAC_RXOVFIS)
+			ret |= CORE_IRQ_MTL_RX_OVERFLOW;
+
+		writel(~0x0, ioaddr + XGMAC_MTL_QINT_STATUS(chan));
+	}
+
+	return ret;
+}
+
+static void dwxgmac2_flow_ctrl(struct mac_device_info *hw, unsigned int duplex,
+			       unsigned int fc, unsigned int pause_time,
+			       u32 tx_cnt)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	u32 i;
+
+	if (fc & FLOW_RX)
+		writel(XGMAC_RFE, ioaddr + XGMAC_RX_FLOW_CTRL);
+	if (fc & FLOW_TX) {
+		for (i = 0; i < tx_cnt; i++) {
+			u32 value = XGMAC_TFE;
+
+			if (duplex)
+				value |= pause_time << XGMAC_PT_SHIFT;
+
+			writel(value, ioaddr + XGMAC_Qx_TX_FLOW_CTRL(i));
+		}
+	}
+}
+
+static void dwxgmac2_pmt(struct mac_device_info *hw, unsigned long mode)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	u32 val = 0x0;
+
+	if (mode & WAKE_MAGIC)
+		val |= XGMAC_PWRDWN | XGMAC_MGKPKTEN;
+	if (mode & WAKE_UCAST)
+		val |= XGMAC_PWRDWN | XGMAC_GLBLUCAST | XGMAC_RWKPKTEN;
+	if (val) {
+		u32 cfg = readl(ioaddr + XGMAC_RX_CONFIG);
+		cfg |= XGMAC_CONFIG_RE;
+		writel(cfg, ioaddr + XGMAC_RX_CONFIG);
+	}
+
+	writel(val, ioaddr + XGMAC_PMT);
+}
+
+static void dwxgmac2_set_umac_addr(struct mac_device_info *hw,
+				   unsigned char *addr, unsigned int reg_n)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	u32 value;
+
+	value = (addr[5] << 8) | addr[4];
+	writel(value | XGMAC_AE, ioaddr + XGMAC_ADDR0_HIGH);
+
+	value = (addr[3] << 24) | (addr[2] << 16) | (addr[1] << 8) | addr[0];
+	writel(value, ioaddr + XGMAC_ADDR0_LOW);
+}
+
+static void dwxgmac2_get_umac_addr(struct mac_device_info *hw,
+				   unsigned char *addr, unsigned int reg_n)
+{
+	void __iomem *ioaddr = hw->pcsr;
+	u32 hi_addr, lo_addr;
+
+	/* Read the MAC address from the hardware */
+	hi_addr = readl(ioaddr + XGMAC_ADDR0_HIGH);
+	lo_addr = readl(ioaddr + XGMAC_ADDR0_LOW);
+
+	/* Extract the MAC address from the high and low words */
+	addr[0] = lo_addr & 0xff;
+	addr[1] = (lo_addr >> 8) & 0xff;
+	addr[2] = (lo_addr >> 16) & 0xff;
+	addr[3] = (lo_addr >> 24) & 0xff;
+	addr[4] = hi_addr & 0xff;
+	addr[5] = (hi_addr >> 8) & 0xff;
+}
+
+static void dwxgmac2_set_filter(struct mac_device_info *hw,
+				struct net_device *dev)
+{
+	void __iomem *ioaddr = (void __iomem *)dev->base_addr;
+	u32 value = XGMAC_FILTER_RA;
+
+	if (dev->flags & IFF_PROMISC) {
+		value |= XGMAC_FILTER_PR;
+	} else if ((dev->flags & IFF_ALLMULTI) ||
+		   (netdev_mc_count(dev) > HASH_TABLE_SIZE)) {
+		value |= XGMAC_FILTER_PM;
+		writel(~0x0, ioaddr + XGMAC_HASH_TABLE(0));
+		writel(~0x0, ioaddr + XGMAC_HASH_TABLE(1));
+	}
+
+	writel(value, ioaddr + XGMAC_PACKET_FILTER);
+}
+
+const struct stmmac_ops dwxgmac210_ops = {
+	.core_init = dwxgmac2_core_init,
+	.set_mac = dwxgmac2_set_mac,
+	.rx_ipc = dwxgmac2_rx_ipc,
+	.rx_queue_enable = dwxgmac2_rx_queue_enable,
+	.rx_queue_prio = dwxgmac2_rx_queue_prio,
+	.tx_queue_prio = NULL,
+	.rx_queue_routing = NULL,
+	.prog_mtl_rx_algorithms = dwxgmac2_prog_mtl_rx_algorithms,
+	.prog_mtl_tx_algorithms = dwxgmac2_prog_mtl_tx_algorithms,
+	.set_mtl_tx_queue_weight = NULL,
+	.map_mtl_to_dma = dwxgmac2_map_mtl_to_dma,
+	.config_cbs = NULL,
+	.dump_regs = NULL,
+	.host_irq_status = dwxgmac2_host_irq_status,
+	.host_mtl_irq_status = dwxgmac2_host_mtl_irq_status,
+	.flow_ctrl = dwxgmac2_flow_ctrl,
+	.pmt = dwxgmac2_pmt,
+	.set_umac_addr = dwxgmac2_set_umac_addr,
+	.get_umac_addr = dwxgmac2_get_umac_addr,
+	.set_eee_mode = NULL,
+	.reset_eee_mode = NULL,
+	.set_eee_timer = NULL,
+	.set_eee_pls = NULL,
+	.pcs_ctrl_ane = NULL,
+	.pcs_rane = NULL,
+	.pcs_get_adv_lp = NULL,
+	.debug = NULL,
+	.set_filter = dwxgmac2_set_filter,
+};
+
+int dwxgmac2_setup(struct stmmac_priv *priv)
+{
+	struct mac_device_info *mac = priv->hw;
+
+	dev_info(priv->device, "\tXGMAC2\n");
+
+	priv->dev->priv_flags |= IFF_UNICAST_FLT;
+	mac->pcsr = priv->ioaddr;
+	mac->multicast_filter_bins = priv->plat->multicast_filter_bins;
+	mac->unicast_filter_entries = priv->plat->unicast_filter_entries;
+	mac->mcast_bits_log2 = 0;
+
+	if (mac->multicast_filter_bins)
+		mac->mcast_bits_log2 = ilog2(mac->multicast_filter_bins);
+
+	mac->link.duplex = 0;
+	mac->link.speed10 = 0;
+	mac->link.speed100 = 0;
+	mac->link.speed1000 = XGMAC_CONFIG_SS_1000;
+	mac->link.speed2500 = XGMAC_CONFIG_SS_2500;
+	mac->link.speed10000 = XGMAC_CONFIG_SS_10000;
+	mac->link.speed_mask = XGMAC_CONFIG_SS_MASK;
+
+	mac->mii.addr = XGMAC_MDIO_ADDR;
+	mac->mii.data = XGMAC_MDIO_DATA;
+	mac->mii.addr_shift = 16;
+	mac->mii.addr_mask = GENMASK(20, 16);
+	mac->mii.reg_shift = 0;
+	mac->mii.reg_mask = GENMASK(15, 0);
+	mac->mii.clk_csr_shift = 19;
+	mac->mii.clk_csr_mask = GENMASK(21, 19);
+
+	return 0;
+}

drivers/net/ethernet/stmicro/stmmac/hwif.c

@@ -198,11 +198,11 @@ static const struct stmmac_hwif_entry {
 		},
 		.desc = NULL,
 		.dma = NULL,
-		.mac = NULL,
+		.mac = &dwxgmac210_ops,
 		.hwtimestamp = NULL,
 		.mode = NULL,
 		.tc = NULL,
-		.setup = NULL,
+		.setup = dwxgmac2_setup,
 		.quirks = NULL,
 	},
 };

drivers/net/ethernet/stmicro/stmmac/hwif.h

@@ -479,6 +479,7 @@ extern const struct stmmac_ops dwmac410_ops;
 extern const struct stmmac_dma_ops dwmac410_dma_ops;
 extern const struct stmmac_ops dwmac510_ops;
 extern const struct stmmac_tc_ops dwmac510_tc_ops;
+extern const struct stmmac_ops dwxgmac210_ops;
 
 #define GMAC_VERSION		0x00000020	/* GMAC CORE Version */
 #define GMAC4_VERSION		0x00000110	/* GMAC4+ CORE Version */