board/freescale/lx2160a/eth_lx2160aqds.c - filogic/uboot - Gitiles

 // SPDX-License-Identifier: GPL-2.0+
 /*
  * Copyright 2018-2019 NXP
  *
  */

 #include <common.h>
 #include <hwconfig.h>
 #include <command.h>
 #include <netdev.h>
 #include <malloc.h>
 #include <fsl_mdio.h>
 #include <miiphy.h>
 #include <phy.h>
 #include <fm_eth.h>
 #include <asm/io.h>
 #include <exports.h>
 #include <asm/arch/fsl_serdes.h>
 #include <fsl-mc/fsl_mc.h>
 #include <fsl-mc/ldpaa_wriop.h>

 #include "../common/qixis.h"

 DECLARE_GLOBAL_DATA_PTR;

 #define EMI_NONE	0
 #define EMI1		1 /* Mdio Bus 1 */
 #define EMI2		2 /* Mdio Bus 2 */

 #if defined(CONFIG_FSL_MC_ENET)
 enum io_slot {
 	IO_SLOT_NONE = 0,
 	IO_SLOT_1,
 	IO_SLOT_2,
 	IO_SLOT_3,
 	IO_SLOT_4,
 	IO_SLOT_5,
 	IO_SLOT_6,
 	IO_SLOT_7,
 	IO_SLOT_8,
 	EMI1_RGMII1,
 	EMI1_RGMII2,
 	IO_SLOT_MAX
 };

 struct lx2160a_qds_mdio {
 	enum io_slot ioslot : 4;
 	u8 realbusnum : 4;
 	struct mii_dev *realbus;
 };

 /* structure explaining the phy configuration on 8 lanes of a serdes*/
 struct serdes_phy_config {
 	u8 serdes; /* serdes protocol */
 	struct phy_config {
 		u8 dpmacid;
 		/* -1 terminated array */
 		int phy_address[WRIOP_MAX_PHY_NUM + 1];
 		u8 mdio_bus;
 		enum io_slot ioslot;
 	} phy_config[SRDS_MAX_LANES];
 };

 /* Table defining the phy configuration on 8 lanes of a serdes.
  * Various assumptions have been made while defining this table.
  * e.g. for serdes1 protocol 19 it is being assumed that X-M11-USXGMII
  * card is being used for dpmac 3-4. (X-M12-XFI could also have been used)
  * And also that this card is connected to IO Slot 1 (could have been connected
  * to any of the 8 IO slots (IO slot 1 - IO slot 8)).
  * similarly, it is also being assumed that MDIO 1 is selected on X-M7-40G card
  * used in serdes1 protocol 19 (could have selected MDIO 2)
  * To override these settings "dpmac" environment variable can be used after
  * defining "dpmac_override" in hwconfig environment variable.
  * This table has limited serdes protocol entries. It can be expanded as per
  * requirement.
  */
 static const struct serdes_phy_config serdes1_phy_config[] = {
 	{3, {{WRIOP1_DPMAC3, {AQ_PHY_ADDR1, -1},
 	      EMI1, IO_SLOT_1},
 	    {WRIOP1_DPMAC4, {AQ_PHY_ADDR2, -1},
 	     EMI1, IO_SLOT_1},
 	    {WRIOP1_DPMAC5, {AQ_PHY_ADDR3, -1},
 	     EMI1, IO_SLOT_1},
 	    {WRIOP1_DPMAC6, {AQ_PHY_ADDR4, -1},
 	     EMI1, IO_SLOT_1} } },
 	{7, {{WRIOP1_DPMAC3, {AQ_PHY_ADDR1, -1},
 	      EMI1, IO_SLOT_1},
 	    {WRIOP1_DPMAC4, {AQ_PHY_ADDR2, -1},
 	     EMI1, IO_SLOT_1},
 	    {WRIOP1_DPMAC5, {AQ_PHY_ADDR3, -1},
 	     EMI1, IO_SLOT_1},
 	    {WRIOP1_DPMAC6, {AQ_PHY_ADDR4, -1},
 	     EMI1, IO_SLOT_1},
 	    {WRIOP1_DPMAC7, {SGMII_CARD_PORT1_PHY_ADDR, -1},
 	     EMI1, IO_SLOT_2},
 	    {WRIOP1_DPMAC8, {SGMII_CARD_PORT2_PHY_ADDR, -1},
 	     EMI1, IO_SLOT_2},
 	    {WRIOP1_DPMAC9, {SGMII_CARD_PORT3_PHY_ADDR, -1},
 	     EMI1, IO_SLOT_2},
 	    {WRIOP1_DPMAC10, {SGMII_CARD_PORT4_PHY_ADDR, -1},
 	     EMI1, IO_SLOT_2} } },
 	{8, {} },
 	{13, {{WRIOP1_DPMAC1, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
 	       EMI1, IO_SLOT_1},
 	     {WRIOP1_DPMAC2, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
 	      EMI1, IO_SLOT_2} } },
 	{15, {{WRIOP1_DPMAC1, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
 	       EMI1, IO_SLOT_1},
 	     {WRIOP1_DPMAC2, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
 	      EMI1, IO_SLOT_1} } },
 	{17, {{WRIOP1_DPMAC3, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
 	       EMI1, IO_SLOT_1},
 	     {WRIOP1_DPMAC4, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
 	      EMI1, IO_SLOT_1},
 	     {WRIOP1_DPMAC5, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
 	      EMI1, IO_SLOT_1},
 	     {WRIOP1_DPMAC6, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
 	      EMI1, IO_SLOT_1} } },
 	{19, {{WRIOP1_DPMAC2, {CORTINA_PHY_ADDR1, -1},
 	       EMI1, IO_SLOT_2},
 	     {WRIOP1_DPMAC3, {AQ_PHY_ADDR1, -1},
 	      EMI1, IO_SLOT_1},
 	     {WRIOP1_DPMAC4, {AQ_PHY_ADDR2, -1},
 	      EMI1, IO_SLOT_1},
 	     {WRIOP1_DPMAC5, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
 	      EMI1, IO_SLOT_6},
 	     {WRIOP1_DPMAC6, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
 	      EMI1, IO_SLOT_6} } },
 	{20, {{WRIOP1_DPMAC1, {CORTINA_PHY_ADDR1, -1},
 	       EMI1, IO_SLOT_1},
 	     {WRIOP1_DPMAC2, {CORTINA_PHY_ADDR1, -1},
 	      EMI1, IO_SLOT_2} } }
 };

 static const struct serdes_phy_config serdes2_phy_config[] = {
 	{2, {} },
 	{3, {} },
 	{5, {} },
 	{11, {{WRIOP1_DPMAC12, {SGMII_CARD_PORT2_PHY_ADDR, -1},
 	       EMI1, IO_SLOT_7},
 	     {WRIOP1_DPMAC17, {SGMII_CARD_PORT3_PHY_ADDR, -1},
 	      EMI1, IO_SLOT_7},
 	     {WRIOP1_DPMAC18, {SGMII_CARD_PORT4_PHY_ADDR, -1},
 	      EMI1, IO_SLOT_7},
 	     {WRIOP1_DPMAC16, {SGMII_CARD_PORT2_PHY_ADDR, -1},
 	      EMI1, IO_SLOT_8},
 	     {WRIOP1_DPMAC13, {SGMII_CARD_PORT3_PHY_ADDR, -1},
 	      EMI1, IO_SLOT_8},
 	     {WRIOP1_DPMAC14, {SGMII_CARD_PORT4_PHY_ADDR, -1},
 	      EMI1, IO_SLOT_8} } },
 };

 static const struct serdes_phy_config serdes3_phy_config[] = {
 	{2, {} },
 	{3, {} }
 };

 static inline
 const struct phy_config *get_phy_config(u8 serdes,
 					const struct serdes_phy_config *table,
 					u8 table_size)
 {
 	int i;

 	for (i = 0; i < table_size; i++) {
 		if (table[i].serdes == serdes)
 			return table[i].phy_config;
 	}

 	return NULL;
 }

 /* BRDCFG4 controls EMI routing for the board.
  * Bits    Function
  * 7-6     EMI Interface #1 Primary Routing (CFG_MUX1_EMI1) (1.8V):
  * EMI1    00= On-board PHY #1
  *         01= On-board PHY #2
  *         10= (reserved)
  *         11= Slots 1..8 multiplexer and translator.
  * 5-3     EMI Interface #1 Secondary Routing (CFG_MUX2_EMI1) (2.5V):
  * EMI1X   000= Slot #1
  *         001= Slot #2
  *         010= Slot #3
  *         011= Slot #4
  *         100= Slot #5
  *         101= Slot #6
  *         110= Slot #7
  *         111= Slot #8
  * 2-0     EMI Interface #2 Routing (CFG_MUX_EMI2):
  * EMI2    000= Slot #1 (secondary EMI)
  *         001= Slot #2 (secondary EMI)
  *         010= Slot #3 (secondary EMI)
  *         011= Slot #4 (secondary EMI)
  *         100= Slot #5 (secondary EMI)
  *         101= Slot #6 (secondary EMI)
  *         110= Slot #7 (secondary EMI)
  *         111= Slot #8 (secondary EMI)
  */
 static int lx2160a_qds_get_mdio_mux_val(u8 realbusnum, enum io_slot ioslot)
 {
 	switch (realbusnum) {
 	case EMI1:
 		switch (ioslot) {
 		case EMI1_RGMII1:
 			return 0;
 		case EMI1_RGMII2:
 			return 0x40;
 		default:
 			return (((ioslot - 1) << BRDCFG4_EMI1SEL_SHIFT) | 0xC0);
 		}
 		break;
 	case EMI2:
 		return ((ioslot - 1) << BRDCFG4_EMI2SEL_SHIFT);
 	default:
 		return -1;
 	}
 }

 static void lx2160a_qds_mux_mdio(struct lx2160a_qds_mdio *priv)
 {
 	u8 brdcfg4, mux_val, reg;

 	brdcfg4 = QIXIS_READ(brdcfg[4]);
 	reg = brdcfg4;
 	mux_val = lx2160a_qds_get_mdio_mux_val(priv->realbusnum, priv->ioslot);

 	switch (priv->realbusnum) {
 	case EMI1:
 		brdcfg4 &= ~BRDCFG4_EMI1SEL_MASK;
 		brdcfg4 |= mux_val;
 		break;
 	case EMI2:
 		brdcfg4 &= ~BRDCFG4_EMI2SEL_MASK;
 		brdcfg4 |= mux_val;
 		break;
 	}

 	if (brdcfg4 ^ reg)
 		QIXIS_WRITE(brdcfg[4], brdcfg4);
 }

 static int lx2160a_qds_mdio_read(struct mii_dev *bus, int addr,
 				 int devad, int regnum)
 {
 	struct lx2160a_qds_mdio *priv = bus->priv;

 	lx2160a_qds_mux_mdio(priv);

 	return priv->realbus->read(priv->realbus, addr, devad, regnum);
 }

 static int lx2160a_qds_mdio_write(struct mii_dev *bus, int addr, int devad,
 				  int regnum, u16 value)
 {
 	struct lx2160a_qds_mdio *priv = bus->priv;

 	lx2160a_qds_mux_mdio(priv);

 	return priv->realbus->write(priv->realbus, addr, devad, regnum, value);
 }

 static int lx2160a_qds_mdio_reset(struct mii_dev *bus)
 {
 	struct lx2160a_qds_mdio *priv = bus->priv;

 	return priv->realbus->reset(priv->realbus);
 }

 static struct mii_dev *lx2160a_qds_mdio_init(u8 realbusnum, enum io_slot ioslot)
 {
 	struct lx2160a_qds_mdio *pmdio;
 	struct mii_dev *bus;
 	/*should be within MDIO_NAME_LEN*/
 	char dummy_mdio_name[] = "LX2160A_QDS_MDIO1_IOSLOT1";

 	if (realbusnum == EMI2) {
 		if (ioslot < IO_SLOT_1 || ioslot > IO_SLOT_8) {
 			printf("invalid ioslot %d\n", ioslot);
 			return NULL;
 		}
 	} else if (realbusnum == EMI1) {
 		if (ioslot < IO_SLOT_1 || ioslot > EMI1_RGMII2) {
 			printf("invalid ioslot %d\n", ioslot);
 			return NULL;
 		}
 	} else {
 		printf("not supported real mdio bus %d\n", realbusnum);
 		return NULL;
 	}

 	if (ioslot == EMI1_RGMII1)
 		strcpy(dummy_mdio_name, "LX2160A_QDS_MDIO1_RGMII1");
 	else if (ioslot == EMI1_RGMII2)
 		strcpy(dummy_mdio_name, "LX2160A_QDS_MDIO1_RGMII2");
 	else
 		sprintf(dummy_mdio_name, "LX2160A_QDS_MDIO%d_IOSLOT%d",
 			realbusnum, ioslot);
 	bus = miiphy_get_dev_by_name(dummy_mdio_name);

 	if (bus)
 		return bus;

 	bus = mdio_alloc();
 	if (!bus) {
 		printf("Failed to allocate %s bus\n", dummy_mdio_name);
 		return NULL;
 	}

 	pmdio = malloc(sizeof(*pmdio));
 	if (!pmdio) {
 		printf("Failed to allocate %s private data\n", dummy_mdio_name);
 		free(bus);
 		return NULL;
 	}

 	switch (realbusnum) {
 	case EMI1:
 		pmdio->realbus =
 		  miiphy_get_dev_by_name(DEFAULT_WRIOP_MDIO1_NAME);
 		break;
 	case EMI2:
 		pmdio->realbus =
 		  miiphy_get_dev_by_name(DEFAULT_WRIOP_MDIO2_NAME);
 		break;
 	}

 	if (!pmdio->realbus) {
 		printf("No real mdio bus num %d found\n", realbusnum);
 		free(bus);
 		free(pmdio);
 		return NULL;
 	}

 	pmdio->realbusnum = realbusnum;
 	pmdio->ioslot = ioslot;
 	bus->read = lx2160a_qds_mdio_read;
 	bus->write = lx2160a_qds_mdio_write;
 	bus->reset = lx2160a_qds_mdio_reset;
 	strcpy(bus->name, dummy_mdio_name);
 	bus->priv = pmdio;

 	if (!mdio_register(bus))
 		return bus;

 	printf("No bus with name %s\n", dummy_mdio_name);
 	free(bus);
 	free(pmdio);
 	return NULL;
 }

 static inline void do_phy_config(const struct phy_config *phy_config)
 {
 	struct mii_dev *bus;
 	int i, phy_num, phy_address;

 	for (i = 0; i < SRDS_MAX_LANES; i++) {
 		if (!phy_config[i].dpmacid)
 			continue;

 		for (phy_num = 0;
 		     phy_num < ARRAY_SIZE(phy_config[i].phy_address);
 		     phy_num++) {
 			phy_address = phy_config[i].phy_address[phy_num];
 			if (phy_address == -1)
 				break;
 			wriop_set_phy_address(phy_config[i].dpmacid,
 					      phy_num, phy_address);
 		}
 		/*Register the muxing front-ends to the MDIO buses*/
 		bus = lx2160a_qds_mdio_init(phy_config[i].mdio_bus,
 					    phy_config[i].ioslot);
 		if (!bus)
 			printf("could not get bus for mdio %d ioslot %d\n",
 			       phy_config[i].mdio_bus,
 			       phy_config[i].ioslot);
 		else
 			wriop_set_mdio(phy_config[i].dpmacid, bus);
 	}
 }

 static inline void do_dpmac_config(int dpmac, const char *arg_dpmacid,
 				   char *env_dpmac)
 {
 	const char *ret;
 	size_t len;
 	u8 realbusnum, ioslot;
 	struct mii_dev *bus;
 	int phy_num;
 	char *phystr = "phy00";

 	/*search phy in dpmac arg*/
 	for (phy_num = 0; phy_num < WRIOP_MAX_PHY_NUM; phy_num++) {
 		sprintf(phystr, "phy%d", phy_num + 1);
 		ret = hwconfig_subarg_f(arg_dpmacid, phystr, &len, env_dpmac);
 		if (!ret) {
 			/*look for phy instead of phy1*/
 			if (!phy_num)
 				ret = hwconfig_subarg_f(arg_dpmacid, "phy",
 							&len, env_dpmac);
 			if (!ret)
 				continue;
 		}

 		if (len != 4 || strncmp(ret, "0x", 2))
 			printf("invalid phy format in %s variable.\n"
 			       "specify phy%d for %s in hex format e.g. 0x12\n",
 			       env_dpmac, phy_num + 1, arg_dpmacid);
 		else
 			wriop_set_phy_address(dpmac, phy_num,
 					      simple_strtoul(ret, NULL, 16));
 	}

 	/*search mdio in dpmac arg*/
 	ret = hwconfig_subarg_f(arg_dpmacid, "mdio", &len, env_dpmac);
 	if (ret)
 		realbusnum = *ret - '0';
 	else
 		realbusnum = EMI_NONE;

 	if (realbusnum) {
 		/*search io in dpmac arg*/
 		ret = hwconfig_subarg_f(arg_dpmacid, "io", &len, env_dpmac);
 		if (ret)
 			ioslot = *ret - '0';
 		else
 			ioslot = IO_SLOT_NONE;
 		/*Register the muxing front-ends to the MDIO buses*/
 		bus = lx2160a_qds_mdio_init(realbusnum, ioslot);
 		if (!bus)
 			printf("could not get bus for mdio %d ioslot %d\n",
 			       realbusnum, ioslot);
 		else
 			wriop_set_mdio(dpmac, bus);
 	}
 }

 #endif

 int board_eth_init(bd_t *bis)
 {
 #if defined(CONFIG_FSL_MC_ENET)
 	struct memac_mdio_info mdio_info;
 	struct memac_mdio_controller *regs;
 	int i;
 	const char *ret;
 	char *env_dpmac;
 	char dpmacid[] = "dpmac00", srds[] = "00_00_00";
 	size_t len;
 	struct mii_dev *bus;
 	const struct phy_config *phy_config;
 	struct ccsr_gur *gur = (void *)(CONFIG_SYS_FSL_GUTS_ADDR);
 	u32 srds_s1, srds_s2, srds_s3;

 	srds_s1 = in_le32(&gur->rcwsr[28]) &
 		  FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_MASK;
 	srds_s1 >>= FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_SHIFT;

 	srds_s2 = in_le32(&gur->rcwsr[28]) &
 		  FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_MASK;
 	srds_s2 >>= FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_SHIFT;

 	srds_s3 = in_le32(&gur->rcwsr[28]) &
 		  FSL_CHASSIS3_RCWSR28_SRDS3_PRTCL_MASK;
 	srds_s3 >>= FSL_CHASSIS3_RCWSR28_SRDS3_PRTCL_SHIFT;

 	sprintf(srds, "%d_%d_%d", srds_s1, srds_s2, srds_s3);

 	regs = (struct memac_mdio_controller *)CONFIG_SYS_FSL_WRIOP1_MDIO1;
 	mdio_info.regs = regs;
 	mdio_info.name = DEFAULT_WRIOP_MDIO1_NAME;

 	/*Register the EMI 1*/
 	fm_memac_mdio_init(bis, &mdio_info);

 	regs = (struct memac_mdio_controller *)CONFIG_SYS_FSL_WRIOP1_MDIO2;
 	mdio_info.regs = regs;
 	mdio_info.name = DEFAULT_WRIOP_MDIO2_NAME;

 	/*Register the EMI 2*/
 	fm_memac_mdio_init(bis, &mdio_info);

 	/* "dpmac" environment variable can be used after
 	 * defining "dpmac_override" in hwconfig environment variable.
 	 */
 	if (hwconfig("dpmac_override")) {
 		env_dpmac = env_get("dpmac");
 		if (env_dpmac) {
 			ret = hwconfig_arg_f("srds", &len, env_dpmac);
 			if (ret) {
 				if (strncmp(ret, srds, strlen(srds))) {
 					printf("SERDES configuration changed.\n"
 					       "previous: %.*s, current: %s.\n"
 					       "update dpmac variable.\n",
 					       (int)len, ret, srds);
 				}
 			} else {
 				printf("SERDES configuration not found.\n"
 				       "Please add srds:%s in dpmac variable\n",
 				       srds);
 			}

 			for (i = WRIOP1_DPMAC1; i < NUM_WRIOP_PORTS; i++) {
 				/* Look for dpmac1 to dpmac24(current max) arg
 				 * in dpmac environment variable
 				 */
 				sprintf(dpmacid, "dpmac%d", i);
 				ret = hwconfig_arg_f(dpmacid, &len, env_dpmac);
 				if (ret)
 					do_dpmac_config(i, dpmacid, env_dpmac);
 			}
 		} else {
 			printf("Warning: environment dpmac not found.\n"
 			       "DPAA network interfaces may not work\n");
 		}
 	} else {
 		/*Look for phy config for serdes1 in phy config table*/
 		phy_config = get_phy_config(srds_s1, serdes1_phy_config,
 					    ARRAY_SIZE(serdes1_phy_config));
 		if (!phy_config) {
 			printf("%s WRIOP: Unsupported SerDes1 Protocol %d\n",
 			       __func__, srds_s1);
 		} else {
 			do_phy_config(phy_config);
 		}
 		phy_config = get_phy_config(srds_s2, serdes2_phy_config,
 					    ARRAY_SIZE(serdes2_phy_config));
 		if (!phy_config) {
 			printf("%s WRIOP: Unsupported SerDes2 Protocol %d\n",
 			       __func__, srds_s2);
 		} else {
 			do_phy_config(phy_config);
 		}
 		phy_config = get_phy_config(srds_s3, serdes3_phy_config,
 					    ARRAY_SIZE(serdes3_phy_config));
 		if (!phy_config) {
 			printf("%s WRIOP: Unsupported SerDes3 Protocol %d\n",
 			       __func__, srds_s3);
 		} else {
 			do_phy_config(phy_config);
 		}
 	}

 	if (wriop_get_enet_if(WRIOP1_DPMAC17) == PHY_INTERFACE_MODE_RGMII_ID) {
 		wriop_set_phy_address(WRIOP1_DPMAC17, 0, RGMII_PHY_ADDR1);
 		bus = lx2160a_qds_mdio_init(EMI1, EMI1_RGMII1);
 		if (!bus)
 			printf("could not get bus for RGMII1\n");
 		else
 			wriop_set_mdio(WRIOP1_DPMAC17, bus);
 	}

 	if (wriop_get_enet_if(WRIOP1_DPMAC18) == PHY_INTERFACE_MODE_RGMII_ID) {
 		wriop_set_phy_address(WRIOP1_DPMAC18, 0, RGMII_PHY_ADDR2);
 		bus = lx2160a_qds_mdio_init(EMI1, EMI1_RGMII2);
 		if (!bus)
 			printf("could not get bus for RGMII2\n");
 		else
 			wriop_set_mdio(WRIOP1_DPMAC18, bus);
 	}

 	cpu_eth_init(bis);
 #endif /* CONFIG_FMAN_ENET */

 #ifdef CONFIG_PHY_AQUANTIA
 	/*
 	 * Export functions to be used by AQ firmware
 	 * upload application
 	 */
 	gd->jt->strcpy = strcpy;
 	gd->jt->mdelay = mdelay;
 	gd->jt->mdio_get_current_dev = mdio_get_current_dev;
 	gd->jt->phy_find_by_mask = phy_find_by_mask;
 	gd->jt->mdio_phydev_for_ethname = mdio_phydev_for_ethname;
 	gd->jt->miiphy_set_current_dev = miiphy_set_current_dev;
 #endif
 	return pci_eth_init(bis);
 }

 #if defined(CONFIG_RESET_PHY_R)
 void reset_phy(void)
 {
 #if defined(CONFIG_FSL_MC_ENET)
 	mc_env_boot();
 #endif
 }
 #endif /* CONFIG_RESET_PHY_R */

 #if defined(CONFIG_FSL_MC_ENET)
 int fdt_fixup_dpmac_phy_handle(void *fdt, int dpmac_id, int node_phandle)
 {
 	int offset;
 	int ret;
 	char dpmac_str[] = "dpmacs@00";
 	const char *phy_string;

 	offset = fdt_path_offset(fdt, "/soc/fsl-mc/dpmacs");

 	if (offset < 0)
 		offset = fdt_path_offset(fdt, "/fsl-mc/dpmacs");

 	if (offset < 0) {
 		printf("dpmacs node not found in device tree\n");
 		return offset;
 	}

 	sprintf(dpmac_str, "dpmac@%x", dpmac_id);
 	debug("dpmac_str = %s\n", dpmac_str);

 	offset = fdt_subnode_offset(fdt, offset, dpmac_str);
 	if (offset < 0) {
 		printf("%s node not found in device tree\n", dpmac_str);
 		return offset;
 	}

 	ret = fdt_appendprop_cell(fdt, offset, "phy-handle", node_phandle);
 	if (ret)
 		printf("%d@%s %d\n", __LINE__, __func__, ret);

 	phy_string = phy_string_for_interface(wriop_get_enet_if(dpmac_id));
 	ret = fdt_setprop_string(fdt, offset, "phy-connection-type",
 				 phy_string);
 	if (ret)
 		printf("%d@%s %d\n", __LINE__, __func__, ret);

 	return ret;
 }

 int fdt_get_ioslot_offset(void *fdt, struct mii_dev *mii_dev, int fpga_offset)
 {
 	char mdio_ioslot_str[] = "mdio@00";
 	char mdio_mux_str[] = "mdio-mux-0";
 	struct lx2160a_qds_mdio *priv;
 	int offset, mux_val;

 	/*Test if the MDIO bus is real mdio bus or muxing front end ?*/
 	if (strncmp(mii_dev->name, "LX2160A_QDS_MDIO",
 		    strlen("LX2160A_QDS_MDIO")))
 		return -1;

 	/*Get the real MDIO bus num and ioslot info from bus's priv data*/
 	priv = mii_dev->priv;

 	debug("real_bus_num = %d, ioslot = %d\n",
 	      priv->realbusnum, priv->ioslot);

 	sprintf(mdio_mux_str, "mdio-mux-%1d", priv->realbusnum);
 	offset = fdt_subnode_offset(fdt, fpga_offset, mdio_mux_str);
 	if (offset < 0) {
 		printf("%s node not found under node %s in device tree\n",
 		       mdio_mux_str, fdt_get_name(fdt, fpga_offset, NULL));
 		return offset;
 	}

 	mux_val = lx2160a_qds_get_mdio_mux_val(priv->realbusnum, priv->ioslot);
 	sprintf(mdio_ioslot_str, "mdio@%x", (u8)mux_val);

 	offset = fdt_subnode_offset(fdt, offset, mdio_ioslot_str);
 	if (offset < 0) {
 		printf("%s node not found in device tree\n", mdio_ioslot_str);
 		return offset;
 	}

 	return offset;
 }

 int fdt_create_phy_node(void *fdt, int offset, u8 phyaddr, int *subnodeoffset,
 			struct phy_device *phy_dev, int phandle)
 {
 	char phy_node_name[] = "ethernet-phy@00";
 	char phy_id_compatible_str[] = "ethernet-phy-id0000.0000";
 	int ret;

 	sprintf(phy_node_name, "ethernet-phy@%x", phyaddr);
 	debug("phy_node_name = %s\n", phy_node_name);

 	*subnodeoffset = fdt_add_subnode(fdt, offset, phy_node_name);
 	if (*subnodeoffset <= 0) {
 		printf("Could not add subnode %s\n", phy_node_name);
 		return *subnodeoffset;
 	}

 	sprintf(phy_id_compatible_str, "ethernet-phy-id%04x.%04x",
 		phy_dev->phy_id >> 16, phy_dev->phy_id & 0xFFFF);
 	debug("phy_id_compatible_str %s\n", phy_id_compatible_str);

 	ret = fdt_setprop_string(fdt, *subnodeoffset, "compatible",
 				 phy_id_compatible_str);
 	if (ret) {
 		printf("%d@%s %d\n", __LINE__, __func__, ret);
 		goto out;
 	}

 	if (phy_dev->is_c45) {
 		ret = fdt_appendprop_string(fdt, *subnodeoffset, "compatible",
 					    "ethernet-phy-ieee802.3-c45");
 		if (ret) {
 			printf("%d@%s %d\n", __LINE__, __func__, ret);
 			goto out;
 		}
 	} else {
 		ret = fdt_appendprop_string(fdt, *subnodeoffset, "compatible",
 					    "ethernet-phy-ieee802.3-c22");
 		if (ret) {
 			printf("%d@%s %d\n", __LINE__, __func__, ret);
 			goto out;
 		}
 	}

 	ret = fdt_setprop_cell(fdt, *subnodeoffset, "reg", phyaddr);
 	if (ret) {
 		printf("%d@%s %d\n", __LINE__, __func__, ret);
 		goto out;
 	}

 	ret = fdt_set_phandle(fdt, *subnodeoffset, phandle);
 	if (ret) {
 		printf("%d@%s %d\n", __LINE__, __func__, ret);
 		goto out;
 	}

 out:
 	if (ret)
 		fdt_del_node(fdt, *subnodeoffset);

 	return ret;
 }

 int fdt_fixup_board_phy(void *fdt)
 {
 	int fpga_offset, offset, subnodeoffset;
 	struct mii_dev *mii_dev;
 	struct list_head *mii_devs, *entry;
 	int ret, dpmac_id, phandle, i;
 	struct phy_device *phy_dev;
 	char ethname[ETH_NAME_LEN];
 	phy_interface_t	phy_iface;

 	ret = 0;
 	/* we know FPGA is connected to i2c0, therefore search path directly,
 	 * instead of compatible property, as it saves time
 	 */
 	fpga_offset = fdt_path_offset(fdt, "/soc/i2c@2000000/fpga");

 	if (fpga_offset < 0)
 		fpga_offset = fdt_path_offset(fdt, "/i2c@2000000/fpga");

 	if (fpga_offset < 0) {
 		printf("i2c@2000000/fpga node not found in device tree\n");
 		return fpga_offset;
 	}

 	phandle = fdt_alloc_phandle(fdt);
 	mii_devs = mdio_get_list_head();

 	list_for_each(entry, mii_devs) {
 		mii_dev = list_entry(entry, struct mii_dev, link);
 		debug("mii_dev name : %s\n", mii_dev->name);
 		offset = fdt_get_ioslot_offset(fdt, mii_dev, fpga_offset);
 		if (offset < 0)
 			continue;

 		// Look for phy devices attached to MDIO bus muxing front end
 		// and create their entries with compatible being the device id
 		for (i = 0; i < PHY_MAX_ADDR; i++) {
 			phy_dev = mii_dev->phymap[i];
 			if (!phy_dev)
 				continue;

 			// TODO: use sscanf instead of loop
 			dpmac_id = WRIOP1_DPMAC1;
 			while (dpmac_id < NUM_WRIOP_PORTS) {
 				phy_iface = wriop_get_enet_if(dpmac_id);
 				snprintf(ethname, ETH_NAME_LEN, "DPMAC%d@%s",
 					 dpmac_id,
 					 phy_string_for_interface(phy_iface));
 				if (strcmp(ethname, phy_dev->dev->name) == 0)
 					break;
 				dpmac_id++;
 			}
 			if (dpmac_id == NUM_WRIOP_PORTS)
 				continue;

 			ret = fdt_create_phy_node(fdt, offset, i,
 						  &subnodeoffset,
 						  phy_dev, phandle);
 			if (ret)
 				break;

 			ret = fdt_fixup_dpmac_phy_handle(fdt,
 							 dpmac_id, phandle);
 			if (ret) {
 				fdt_del_node(fdt, subnodeoffset);
 				break;
 			}
 			phandle++;
 		}

 		if (ret)
 			break;
 	}

 	return ret;
 }
 #endif // CONFIG_FSL_MC_ENET
	// SPDX-License-Identifier: GPL-2.0+
	/*
	* Copyright 2018-2019 NXP
	*
	*/

	#include <common.h>
	#include <hwconfig.h>
	#include <command.h>
	#include <netdev.h>
	#include <malloc.h>
	#include <fsl_mdio.h>
	#include <miiphy.h>
	#include <phy.h>
	#include <fm_eth.h>
	#include <asm/io.h>
	#include <exports.h>
	#include <asm/arch/fsl_serdes.h>
	#include <fsl-mc/fsl_mc.h>
	#include <fsl-mc/ldpaa_wriop.h>

	#include "../common/qixis.h"

	DECLARE_GLOBAL_DATA_PTR;

	#define EMI_NONE 0
	#define EMI1 1 /* Mdio Bus 1 */
	#define EMI2 2 /* Mdio Bus 2 */

	#if defined(CONFIG_FSL_MC_ENET)
	enum io_slot {
	IO_SLOT_NONE = 0,
	IO_SLOT_1,
	IO_SLOT_2,
	IO_SLOT_3,
	IO_SLOT_4,
	IO_SLOT_5,
	IO_SLOT_6,
	IO_SLOT_7,
	IO_SLOT_8,
	EMI1_RGMII1,
	EMI1_RGMII2,
	IO_SLOT_MAX
	};

	struct lx2160a_qds_mdio {
	enum io_slot ioslot : 4;
	u8 realbusnum : 4;
	struct mii_dev *realbus;
	};

	/* structure explaining the phy configuration on 8 lanes of a serdes*/
	struct serdes_phy_config {
	u8 serdes; /* serdes protocol */
	struct phy_config {
	u8 dpmacid;
	/* -1 terminated array */
	int phy_address[WRIOP_MAX_PHY_NUM + 1];
	u8 mdio_bus;
	enum io_slot ioslot;
	} phy_config[SRDS_MAX_LANES];
	};

	/* Table defining the phy configuration on 8 lanes of a serdes.
	* Various assumptions have been made while defining this table.
	* e.g. for serdes1 protocol 19 it is being assumed that X-M11-USXGMII
	* card is being used for dpmac 3-4. (X-M12-XFI could also have been used)
	* And also that this card is connected to IO Slot 1 (could have been connected
	* to any of the 8 IO slots (IO slot 1 - IO slot 8)).
	* similarly, it is also being assumed that MDIO 1 is selected on X-M7-40G card
	* used in serdes1 protocol 19 (could have selected MDIO 2)
	* To override these settings "dpmac" environment variable can be used after
	* defining "dpmac_override" in hwconfig environment variable.
	* This table has limited serdes protocol entries. It can be expanded as per
	* requirement.
	*/
	static const struct serdes_phy_config serdes1_phy_config[] = {
	{3, {{WRIOP1_DPMAC3, {AQ_PHY_ADDR1, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC4, {AQ_PHY_ADDR2, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC5, {AQ_PHY_ADDR3, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC6, {AQ_PHY_ADDR4, -1},
	EMI1, IO_SLOT_1} } },
	{7, {{WRIOP1_DPMAC3, {AQ_PHY_ADDR1, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC4, {AQ_PHY_ADDR2, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC5, {AQ_PHY_ADDR3, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC6, {AQ_PHY_ADDR4, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC7, {SGMII_CARD_PORT1_PHY_ADDR, -1},
	EMI1, IO_SLOT_2},
	{WRIOP1_DPMAC8, {SGMII_CARD_PORT2_PHY_ADDR, -1},
	EMI1, IO_SLOT_2},
	{WRIOP1_DPMAC9, {SGMII_CARD_PORT3_PHY_ADDR, -1},
	EMI1, IO_SLOT_2},
	{WRIOP1_DPMAC10, {SGMII_CARD_PORT4_PHY_ADDR, -1},
	EMI1, IO_SLOT_2} } },
	{8, {} },
	{13, {{WRIOP1_DPMAC1, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC2, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
	EMI1, IO_SLOT_2} } },
	{15, {{WRIOP1_DPMAC1, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC2, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
	EMI1, IO_SLOT_1} } },
	{17, {{WRIOP1_DPMAC3, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC4, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC5, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC6, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
	EMI1, IO_SLOT_1} } },
	{19, {{WRIOP1_DPMAC2, {CORTINA_PHY_ADDR1, -1},
	EMI1, IO_SLOT_2},
	{WRIOP1_DPMAC3, {AQ_PHY_ADDR1, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC4, {AQ_PHY_ADDR2, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC5, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
	EMI1, IO_SLOT_6},
	{WRIOP1_DPMAC6, {INPHI_PHY_ADDR1, INPHI_PHY_ADDR2, -1},
	EMI1, IO_SLOT_6} } },
	{20, {{WRIOP1_DPMAC1, {CORTINA_PHY_ADDR1, -1},
	EMI1, IO_SLOT_1},
	{WRIOP1_DPMAC2, {CORTINA_PHY_ADDR1, -1},
	EMI1, IO_SLOT_2} } }
	};

	static const struct serdes_phy_config serdes2_phy_config[] = {
	{2, {} },
	{3, {} },
	{5, {} },
	{11, {{WRIOP1_DPMAC12, {SGMII_CARD_PORT2_PHY_ADDR, -1},
	EMI1, IO_SLOT_7},
	{WRIOP1_DPMAC17, {SGMII_CARD_PORT3_PHY_ADDR, -1},
	EMI1, IO_SLOT_7},
	{WRIOP1_DPMAC18, {SGMII_CARD_PORT4_PHY_ADDR, -1},
	EMI1, IO_SLOT_7},
	{WRIOP1_DPMAC16, {SGMII_CARD_PORT2_PHY_ADDR, -1},
	EMI1, IO_SLOT_8},
	{WRIOP1_DPMAC13, {SGMII_CARD_PORT3_PHY_ADDR, -1},
	EMI1, IO_SLOT_8},
	{WRIOP1_DPMAC14, {SGMII_CARD_PORT4_PHY_ADDR, -1},
	EMI1, IO_SLOT_8} } },
	};

	static const struct serdes_phy_config serdes3_phy_config[] = {
	{2, {} },
	{3, {} }
	};

	static inline
	const struct phy_config *get_phy_config(u8 serdes,
	const struct serdes_phy_config *table,
	u8 table_size)
	{
	int i;

	for (i = 0; i < table_size; i++) {
	if (table[i].serdes == serdes)
	return table[i].phy_config;
	}

	return NULL;
	}

	/* BRDCFG4 controls EMI routing for the board.
	* Bits Function
	* 7-6 EMI Interface #1 Primary Routing (CFG_MUX1_EMI1) (1.8V):
	* EMI1 00= On-board PHY #1
	* 01= On-board PHY #2
	* 10= (reserved)
	* 11= Slots 1..8 multiplexer and translator.
	* 5-3 EMI Interface #1 Secondary Routing (CFG_MUX2_EMI1) (2.5V):
	* EMI1X 000= Slot #1
	* 001= Slot #2
	* 010= Slot #3
	* 011= Slot #4
	* 100= Slot #5
	* 101= Slot #6
	* 110= Slot #7
	* 111= Slot #8
	* 2-0 EMI Interface #2 Routing (CFG_MUX_EMI2):
	* EMI2 000= Slot #1 (secondary EMI)
	* 001= Slot #2 (secondary EMI)
	* 010= Slot #3 (secondary EMI)
	* 011= Slot #4 (secondary EMI)
	* 100= Slot #5 (secondary EMI)
	* 101= Slot #6 (secondary EMI)
	* 110= Slot #7 (secondary EMI)
	* 111= Slot #8 (secondary EMI)
	*/
	static int lx2160a_qds_get_mdio_mux_val(u8 realbusnum, enum io_slot ioslot)
	{
	switch (realbusnum) {
	case EMI1:
	switch (ioslot) {
	case EMI1_RGMII1:
	return 0;
	case EMI1_RGMII2:
	return 0x40;
	default:
	return (((ioslot - 1) << BRDCFG4_EMI1SEL_SHIFT) \| 0xC0);
	}
	break;
	case EMI2:
	return ((ioslot - 1) << BRDCFG4_EMI2SEL_SHIFT);
	default:
	return -1;
	}
	}

	static void lx2160a_qds_mux_mdio(struct lx2160a_qds_mdio *priv)
	{
	u8 brdcfg4, mux_val, reg;

	brdcfg4 = QIXIS_READ(brdcfg[4]);
	reg = brdcfg4;
	mux_val = lx2160a_qds_get_mdio_mux_val(priv->realbusnum, priv->ioslot);

	switch (priv->realbusnum) {
	case EMI1:
	brdcfg4 &= ~BRDCFG4_EMI1SEL_MASK;
	brdcfg4 \|= mux_val;
	break;
	case EMI2:
	brdcfg4 &= ~BRDCFG4_EMI2SEL_MASK;
	brdcfg4 \|= mux_val;
	break;
	}

	if (brdcfg4 ^ reg)
	QIXIS_WRITE(brdcfg[4], brdcfg4);
	}

	static int lx2160a_qds_mdio_read(struct mii_dev *bus, int addr,
	int devad, int regnum)
	{
	struct lx2160a_qds_mdio *priv = bus->priv;

	lx2160a_qds_mux_mdio(priv);

	return priv->realbus->read(priv->realbus, addr, devad, regnum);
	}

	static int lx2160a_qds_mdio_write(struct mii_dev *bus, int addr, int devad,
	int regnum, u16 value)
	{
	struct lx2160a_qds_mdio *priv = bus->priv;

	lx2160a_qds_mux_mdio(priv);

	return priv->realbus->write(priv->realbus, addr, devad, regnum, value);
	}

	static int lx2160a_qds_mdio_reset(struct mii_dev *bus)
	{
	struct lx2160a_qds_mdio *priv = bus->priv;

	return priv->realbus->reset(priv->realbus);
	}

	static struct mii_dev *lx2160a_qds_mdio_init(u8 realbusnum, enum io_slot ioslot)
	{
	struct lx2160a_qds_mdio *pmdio;
	struct mii_dev *bus;
	/should be within MDIO_NAME_LEN/
	char dummy_mdio_name[] = "LX2160A_QDS_MDIO1_IOSLOT1";

	if (realbusnum == EMI2) {
	if (ioslot < IO_SLOT_1 \|\| ioslot > IO_SLOT_8) {
	printf("invalid ioslot %d\n", ioslot);
	return NULL;
	}
	} else if (realbusnum == EMI1) {
	if (ioslot < IO_SLOT_1 \|\| ioslot > EMI1_RGMII2) {
	printf("invalid ioslot %d\n", ioslot);
	return NULL;
	}
	} else {
	printf("not supported real mdio bus %d\n", realbusnum);
	return NULL;
	}

	if (ioslot == EMI1_RGMII1)
	strcpy(dummy_mdio_name, "LX2160A_QDS_MDIO1_RGMII1");
	else if (ioslot == EMI1_RGMII2)
	strcpy(dummy_mdio_name, "LX2160A_QDS_MDIO1_RGMII2");
	else
	sprintf(dummy_mdio_name, "LX2160A_QDS_MDIO%d_IOSLOT%d",
	realbusnum, ioslot);
	bus = miiphy_get_dev_by_name(dummy_mdio_name);

	if (bus)
	return bus;

	bus = mdio_alloc();
	if (!bus) {
	printf("Failed to allocate %s bus\n", dummy_mdio_name);
	return NULL;
	}

	pmdio = malloc(sizeof(*pmdio));
	if (!pmdio) {
	printf("Failed to allocate %s private data\n", dummy_mdio_name);
	free(bus);
	return NULL;
	}

	switch (realbusnum) {
	case EMI1:
	pmdio->realbus =
	miiphy_get_dev_by_name(DEFAULT_WRIOP_MDIO1_NAME);
	break;
	case EMI2:
	pmdio->realbus =
	miiphy_get_dev_by_name(DEFAULT_WRIOP_MDIO2_NAME);
	break;
	}

	if (!pmdio->realbus) {
	printf("No real mdio bus num %d found\n", realbusnum);
	free(bus);
	free(pmdio);
	return NULL;
	}

	pmdio->realbusnum = realbusnum;
	pmdio->ioslot = ioslot;
	bus->read = lx2160a_qds_mdio_read;
	bus->write = lx2160a_qds_mdio_write;
	bus->reset = lx2160a_qds_mdio_reset;
	strcpy(bus->name, dummy_mdio_name);
	bus->priv = pmdio;

	if (!mdio_register(bus))
	return bus;

	printf("No bus with name %s\n", dummy_mdio_name);
	free(bus);
	free(pmdio);
	return NULL;
	}

	static inline void do_phy_config(const struct phy_config *phy_config)
	{
	struct mii_dev *bus;
	int i, phy_num, phy_address;

	for (i = 0; i < SRDS_MAX_LANES; i++) {
	if (!phy_config[i].dpmacid)
	continue;

	for (phy_num = 0;
	phy_num < ARRAY_SIZE(phy_config[i].phy_address);
	phy_num++) {
	phy_address = phy_config[i].phy_address[phy_num];
	if (phy_address == -1)
	break;
	wriop_set_phy_address(phy_config[i].dpmacid,
	phy_num, phy_address);
	}
	/Register the muxing front-ends to the MDIO buses/
	bus = lx2160a_qds_mdio_init(phy_config[i].mdio_bus,
	phy_config[i].ioslot);
	if (!bus)
	printf("could not get bus for mdio %d ioslot %d\n",
	phy_config[i].mdio_bus,
	phy_config[i].ioslot);
	else
	wriop_set_mdio(phy_config[i].dpmacid, bus);
	}
	}

	static inline void do_dpmac_config(int dpmac, const char *arg_dpmacid,
	char *env_dpmac)
	{
	const char *ret;
	size_t len;
	u8 realbusnum, ioslot;
	struct mii_dev *bus;
	int phy_num;
	char *phystr = "phy00";

	/search phy in dpmac arg/
	for (phy_num = 0; phy_num < WRIOP_MAX_PHY_NUM; phy_num++) {
	sprintf(phystr, "phy%d", phy_num + 1);
	ret = hwconfig_subarg_f(arg_dpmacid, phystr, &len, env_dpmac);
	if (!ret) {
	/look for phy instead of phy1/
	if (!phy_num)
	ret = hwconfig_subarg_f(arg_dpmacid, "phy",
	&len, env_dpmac);
	if (!ret)
	continue;
	}

	if (len != 4 \|\| strncmp(ret, "0x", 2))
	printf("invalid phy format in %s variable.\n"
	"specify phy%d for %s in hex format e.g. 0x12\n",
	env_dpmac, phy_num + 1, arg_dpmacid);
	else
	wriop_set_phy_address(dpmac, phy_num,
	simple_strtoul(ret, NULL, 16));
	}

	/search mdio in dpmac arg/
	ret = hwconfig_subarg_f(arg_dpmacid, "mdio", &len, env_dpmac);
	if (ret)
	realbusnum = *ret - '0';
	else
	realbusnum = EMI_NONE;

	if (realbusnum) {
	/search io in dpmac arg/
	ret = hwconfig_subarg_f(arg_dpmacid, "io", &len, env_dpmac);
	if (ret)
	ioslot = *ret - '0';
	else
	ioslot = IO_SLOT_NONE;
	/Register the muxing front-ends to the MDIO buses/
	bus = lx2160a_qds_mdio_init(realbusnum, ioslot);
	if (!bus)
	printf("could not get bus for mdio %d ioslot %d\n",
	realbusnum, ioslot);
	else
	wriop_set_mdio(dpmac, bus);
	}
	}

	#endif

	int board_eth_init(bd_t *bis)
	{
	#if defined(CONFIG_FSL_MC_ENET)
	struct memac_mdio_info mdio_info;
	struct memac_mdio_controller *regs;
	int i;
	const char *ret;
	char *env_dpmac;
	char dpmacid[] = "dpmac00", srds[] = "00_00_00";
	size_t len;
	struct mii_dev *bus;
	const struct phy_config *phy_config;
	struct ccsr_gur gur = (void )(CONFIG_SYS_FSL_GUTS_ADDR);
	u32 srds_s1, srds_s2, srds_s3;

	srds_s1 = in_le32(&gur->rcwsr[28]) &
	FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_MASK;
	srds_s1 >>= FSL_CHASSIS3_RCWSR28_SRDS1_PRTCL_SHIFT;

	srds_s2 = in_le32(&gur->rcwsr[28]) &
	FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_MASK;
	srds_s2 >>= FSL_CHASSIS3_RCWSR28_SRDS2_PRTCL_SHIFT;

	srds_s3 = in_le32(&gur->rcwsr[28]) &
	FSL_CHASSIS3_RCWSR28_SRDS3_PRTCL_MASK;
	srds_s3 >>= FSL_CHASSIS3_RCWSR28_SRDS3_PRTCL_SHIFT;

	sprintf(srds, "%d_%d_%d", srds_s1, srds_s2, srds_s3);

	regs = (struct memac_mdio_controller *)CONFIG_SYS_FSL_WRIOP1_MDIO1;
	mdio_info.regs = regs;
	mdio_info.name = DEFAULT_WRIOP_MDIO1_NAME;

	/Register the EMI 1/
	fm_memac_mdio_init(bis, &mdio_info);

	regs = (struct memac_mdio_controller *)CONFIG_SYS_FSL_WRIOP1_MDIO2;
	mdio_info.regs = regs;
	mdio_info.name = DEFAULT_WRIOP_MDIO2_NAME;

	/Register the EMI 2/
	fm_memac_mdio_init(bis, &mdio_info);

	/* "dpmac" environment variable can be used after
	* defining "dpmac_override" in hwconfig environment variable.
	*/
	if (hwconfig("dpmac_override")) {
	env_dpmac = env_get("dpmac");
	if (env_dpmac) {
	ret = hwconfig_arg_f("srds", &len, env_dpmac);
	if (ret) {
	if (strncmp(ret, srds, strlen(srds))) {
	printf("SERDES configuration changed.\n"
	"previous: %.*s, current: %s.\n"
	"update dpmac variable.\n",
	(int)len, ret, srds);
	}
	} else {
	printf("SERDES configuration not found.\n"
	"Please add srds:%s in dpmac variable\n",
	srds);
	}

	for (i = WRIOP1_DPMAC1; i < NUM_WRIOP_PORTS; i++) {
	/* Look for dpmac1 to dpmac24(current max) arg
	* in dpmac environment variable
	*/
	sprintf(dpmacid, "dpmac%d", i);
	ret = hwconfig_arg_f(dpmacid, &len, env_dpmac);
	if (ret)
	do_dpmac_config(i, dpmacid, env_dpmac);
	}
	} else {
	printf("Warning: environment dpmac not found.\n"
	"DPAA network interfaces may not work\n");
	}
	} else {
	/Look for phy config for serdes1 in phy config table/
	phy_config = get_phy_config(srds_s1, serdes1_phy_config,
	ARRAY_SIZE(serdes1_phy_config));
	if (!phy_config) {
	printf("%s WRIOP: Unsupported SerDes1 Protocol %d\n",
	__func__, srds_s1);
	} else {
	do_phy_config(phy_config);
	}
	phy_config = get_phy_config(srds_s2, serdes2_phy_config,
	ARRAY_SIZE(serdes2_phy_config));
	if (!phy_config) {
	printf("%s WRIOP: Unsupported SerDes2 Protocol %d\n",
	__func__, srds_s2);
	} else {
	do_phy_config(phy_config);
	}
	phy_config = get_phy_config(srds_s3, serdes3_phy_config,
	ARRAY_SIZE(serdes3_phy_config));
	if (!phy_config) {
	printf("%s WRIOP: Unsupported SerDes3 Protocol %d\n",
	__func__, srds_s3);
	} else {
	do_phy_config(phy_config);
	}
	}

	if (wriop_get_enet_if(WRIOP1_DPMAC17) == PHY_INTERFACE_MODE_RGMII_ID) {
	wriop_set_phy_address(WRIOP1_DPMAC17, 0, RGMII_PHY_ADDR1);
	bus = lx2160a_qds_mdio_init(EMI1, EMI1_RGMII1);
	if (!bus)
	printf("could not get bus for RGMII1\n");
	else
	wriop_set_mdio(WRIOP1_DPMAC17, bus);
	}

	if (wriop_get_enet_if(WRIOP1_DPMAC18) == PHY_INTERFACE_MODE_RGMII_ID) {
	wriop_set_phy_address(WRIOP1_DPMAC18, 0, RGMII_PHY_ADDR2);
	bus = lx2160a_qds_mdio_init(EMI1, EMI1_RGMII2);
	if (!bus)
	printf("could not get bus for RGMII2\n");
	else
	wriop_set_mdio(WRIOP1_DPMAC18, bus);
	}

	cpu_eth_init(bis);
	#endif /* CONFIG_FMAN_ENET */

	#ifdef CONFIG_PHY_AQUANTIA
	/*
	* Export functions to be used by AQ firmware
	* upload application
	*/
	gd->jt->strcpy = strcpy;
	gd->jt->mdelay = mdelay;
	gd->jt->mdio_get_current_dev = mdio_get_current_dev;
	gd->jt->phy_find_by_mask = phy_find_by_mask;
	gd->jt->mdio_phydev_for_ethname = mdio_phydev_for_ethname;
	gd->jt->miiphy_set_current_dev = miiphy_set_current_dev;
	#endif
	return pci_eth_init(bis);
	}

	#if defined(CONFIG_RESET_PHY_R)
	void reset_phy(void)
	{
	#if defined(CONFIG_FSL_MC_ENET)
	mc_env_boot();
	#endif
	}
	#endif /* CONFIG_RESET_PHY_R */

	#if defined(CONFIG_FSL_MC_ENET)
	int fdt_fixup_dpmac_phy_handle(void *fdt, int dpmac_id, int node_phandle)
	{
	int offset;
	int ret;
	char dpmac_str[] = "dpmacs@00";
	const char *phy_string;

	offset = fdt_path_offset(fdt, "/soc/fsl-mc/dpmacs");

	if (offset < 0)
	offset = fdt_path_offset(fdt, "/fsl-mc/dpmacs");

	if (offset < 0) {
	printf("dpmacs node not found in device tree\n");
	return offset;
	}

	sprintf(dpmac_str, "dpmac@%x", dpmac_id);
	debug("dpmac_str = %s\n", dpmac_str);

	offset = fdt_subnode_offset(fdt, offset, dpmac_str);
	if (offset < 0) {
	printf("%s node not found in device tree\n", dpmac_str);
	return offset;
	}

	ret = fdt_appendprop_cell(fdt, offset, "phy-handle", node_phandle);
	if (ret)
	printf("%d@%s %d\n", __LINE__, __func__, ret);

	phy_string = phy_string_for_interface(wriop_get_enet_if(dpmac_id));
	ret = fdt_setprop_string(fdt, offset, "phy-connection-type",
	phy_string);
	if (ret)
	printf("%d@%s %d\n", __LINE__, __func__, ret);

	return ret;
	}

	int fdt_get_ioslot_offset(void fdt, struct mii_dev mii_dev, int fpga_offset)
	{
	char mdio_ioslot_str[] = "mdio@00";
	char mdio_mux_str[] = "mdio-mux-0";
	struct lx2160a_qds_mdio *priv;
	int offset, mux_val;

	/Test if the MDIO bus is real mdio bus or muxing front end ?/
	if (strncmp(mii_dev->name, "LX2160A_QDS_MDIO",
	strlen("LX2160A_QDS_MDIO")))
	return -1;

	/Get the real MDIO bus num and ioslot info from bus's priv data/
	priv = mii_dev->priv;

	debug("real_bus_num = %d, ioslot = %d\n",
	priv->realbusnum, priv->ioslot);

	sprintf(mdio_mux_str, "mdio-mux-%1d", priv->realbusnum);
	offset = fdt_subnode_offset(fdt, fpga_offset, mdio_mux_str);
	if (offset < 0) {
	printf("%s node not found under node %s in device tree\n",
	mdio_mux_str, fdt_get_name(fdt, fpga_offset, NULL));
	return offset;
	}

	mux_val = lx2160a_qds_get_mdio_mux_val(priv->realbusnum, priv->ioslot);
	sprintf(mdio_ioslot_str, "mdio@%x", (u8)mux_val);

	offset = fdt_subnode_offset(fdt, offset, mdio_ioslot_str);
	if (offset < 0) {
	printf("%s node not found in device tree\n", mdio_ioslot_str);
	return offset;
	}

	return offset;
	}

	int fdt_create_phy_node(void fdt, int offset, u8 phyaddr, int subnodeoffset,
	struct phy_device *phy_dev, int phandle)
	{
	char phy_node_name[] = "ethernet-phy@00";
	char phy_id_compatible_str[] = "ethernet-phy-id0000.0000";
	int ret;

	sprintf(phy_node_name, "ethernet-phy@%x", phyaddr);
	debug("phy_node_name = %s\n", phy_node_name);

	*subnodeoffset = fdt_add_subnode(fdt, offset, phy_node_name);
	if (*subnodeoffset <= 0) {
	printf("Could not add subnode %s\n", phy_node_name);
	return *subnodeoffset;
	}

	sprintf(phy_id_compatible_str, "ethernet-phy-id%04x.%04x",
	phy_dev->phy_id >> 16, phy_dev->phy_id & 0xFFFF);
	debug("phy_id_compatible_str %s\n", phy_id_compatible_str);

	ret = fdt_setprop_string(fdt, *subnodeoffset, "compatible",
	phy_id_compatible_str);
	if (ret) {
	printf("%d@%s %d\n", __LINE__, __func__, ret);
	goto out;
	}

	if (phy_dev->is_c45) {
	ret = fdt_appendprop_string(fdt, *subnodeoffset, "compatible",
	"ethernet-phy-ieee802.3-c45");
	if (ret) {
	printf("%d@%s %d\n", __LINE__, __func__, ret);
	goto out;
	}
	} else {
	ret = fdt_appendprop_string(fdt, *subnodeoffset, "compatible",
	"ethernet-phy-ieee802.3-c22");
	if (ret) {
	printf("%d@%s %d\n", __LINE__, __func__, ret);
	goto out;
	}
	}

	ret = fdt_setprop_cell(fdt, *subnodeoffset, "reg", phyaddr);
	if (ret) {
	printf("%d@%s %d\n", __LINE__, __func__, ret);
	goto out;
	}

	ret = fdt_set_phandle(fdt, *subnodeoffset, phandle);
	if (ret) {
	printf("%d@%s %d\n", __LINE__, __func__, ret);
	goto out;
	}

	out:
	if (ret)
	fdt_del_node(fdt, *subnodeoffset);

	return ret;
	}

	int fdt_fixup_board_phy(void *fdt)
	{
	int fpga_offset, offset, subnodeoffset;
	struct mii_dev *mii_dev;
	struct list_head mii_devs, entry;
	int ret, dpmac_id, phandle, i;
	struct phy_device *phy_dev;
	char ethname[ETH_NAME_LEN];
	phy_interface_t phy_iface;

	ret = 0;
	/* we know FPGA is connected to i2c0, therefore search path directly,
	* instead of compatible property, as it saves time
	*/
	fpga_offset = fdt_path_offset(fdt, "/soc/i2c@2000000/fpga");

	if (fpga_offset < 0)
	fpga_offset = fdt_path_offset(fdt, "/i2c@2000000/fpga");

	if (fpga_offset < 0) {
	printf("i2c@2000000/fpga node not found in device tree\n");
	return fpga_offset;
	}

	phandle = fdt_alloc_phandle(fdt);
	mii_devs = mdio_get_list_head();

	list_for_each(entry, mii_devs) {
	mii_dev = list_entry(entry, struct mii_dev, link);
	debug("mii_dev name : %s\n", mii_dev->name);
	offset = fdt_get_ioslot_offset(fdt, mii_dev, fpga_offset);
	if (offset < 0)
	continue;

	// Look for phy devices attached to MDIO bus muxing front end
	// and create their entries with compatible being the device id
	for (i = 0; i < PHY_MAX_ADDR; i++) {
	phy_dev = mii_dev->phymap[i];
	if (!phy_dev)
	continue;

	// TODO: use sscanf instead of loop
	dpmac_id = WRIOP1_DPMAC1;
	while (dpmac_id < NUM_WRIOP_PORTS) {
	phy_iface = wriop_get_enet_if(dpmac_id);
	snprintf(ethname, ETH_NAME_LEN, "DPMAC%d@%s",
	dpmac_id,
	phy_string_for_interface(phy_iface));
	if (strcmp(ethname, phy_dev->dev->name) == 0)
	break;
	dpmac_id++;
	}
	if (dpmac_id == NUM_WRIOP_PORTS)
	continue;

	ret = fdt_create_phy_node(fdt, offset, i,
	&subnodeoffset,
	phy_dev, phandle);
	if (ret)
	break;

	ret = fdt_fixup_dpmac_phy_handle(fdt,
	dpmac_id, phandle);
	if (ret) {
	fdt_del_node(fdt, subnodeoffset);
	break;
	}
	phandle++;
	}

	if (ret)
	break;
	}

	return ret;
	}
	#endif // CONFIG_FSL_MC_ENET