ARK-OS/arkos/kernel/drivers/net/phy/mscc/mscc_main.c

// SPDX-License-Identifier: (GPL-2.0 OR MIT)
/*
 * Driver for Microsemi VSC85xx PHYs
 *
 * Author: Nagaraju Lakkaraju
 * License: Dual MIT/GPL
 * Copyright (c) 2016 Microsemi Corporation
 */

#include <linux/firmware.h>
#include <linux/jiffies.h>
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mdio.h>
#include <linux/mii.h>
#include <linux/phy.h>
#include <linux/of.h>
#include <linux/netdevice.h>
#include <dt-bindings/net/mscc-phy-vsc8531.h>

#include "../phylib.h"
#include "mscc_serdes.h"
#include "mscc.h"

struct vsc85xx_probe_config {
	const struct vsc85xx_hw_stat *hw_stats;
	size_t shared_size;
	size_t nstats;
	u16 supp_led_modes;
	u8 nleds;
	bool check_rate_magic;
	bool use_package;
	bool has_ptp;
};

static const u32 vsc85xx_default_led_modes_4[] = {
	VSC8531_LINK_1000_ACTIVITY,
	VSC8531_LINK_100_ACTIVITY,
	VSC8531_LINK_ACTIVITY,
	VSC8531_DUPLEX_COLLISION
};

static const struct vsc85xx_hw_stat vsc85xx_hw_stats[] = {
	{
		.string	= "phy_receive_errors",
		.reg	= MSCC_PHY_ERR_RX_CNT,
		.page	= MSCC_PHY_PAGE_STANDARD,
		.mask	= ERR_CNT_MASK,
	}, {
		.string	= "phy_false_carrier",
		.reg	= MSCC_PHY_ERR_FALSE_CARRIER_CNT,
		.page	= MSCC_PHY_PAGE_STANDARD,
		.mask	= ERR_CNT_MASK,
	}, {
		.string	= "phy_cu_media_link_disconnect",
		.reg	= MSCC_PHY_ERR_LINK_DISCONNECT_CNT,
		.page	= MSCC_PHY_PAGE_STANDARD,
		.mask	= ERR_CNT_MASK,
	}, {
		.string	= "phy_cu_media_crc_good_count",
		.reg	= MSCC_PHY_CU_MEDIA_CRC_VALID_CNT,
		.page	= MSCC_PHY_PAGE_EXTENDED,
		.mask	= VALID_CRC_CNT_CRC_MASK,
	}, {
		.string	= "phy_cu_media_crc_error_count",
		.reg	= MSCC_PHY_EXT_PHY_CNTL_4,
		.page	= MSCC_PHY_PAGE_EXTENDED,
		.mask	= ERR_CNT_MASK,
	},
};

static const struct vsc85xx_hw_stat vsc8584_hw_stats[] = {
	{
		.string	= "phy_receive_errors",
		.reg	= MSCC_PHY_ERR_RX_CNT,
		.page	= MSCC_PHY_PAGE_STANDARD,
		.mask	= ERR_CNT_MASK,
	}, {
		.string	= "phy_false_carrier",
		.reg	= MSCC_PHY_ERR_FALSE_CARRIER_CNT,
		.page	= MSCC_PHY_PAGE_STANDARD,
		.mask	= ERR_CNT_MASK,
	}, {
		.string	= "phy_cu_media_link_disconnect",
		.reg	= MSCC_PHY_ERR_LINK_DISCONNECT_CNT,
		.page	= MSCC_PHY_PAGE_STANDARD,
		.mask	= ERR_CNT_MASK,
	}, {
		.string	= "phy_cu_media_crc_good_count",
		.reg	= MSCC_PHY_CU_MEDIA_CRC_VALID_CNT,
		.page	= MSCC_PHY_PAGE_EXTENDED,
		.mask	= VALID_CRC_CNT_CRC_MASK,
	}, {
		.string	= "phy_cu_media_crc_error_count",
		.reg	= MSCC_PHY_EXT_PHY_CNTL_4,
		.page	= MSCC_PHY_PAGE_EXTENDED,
		.mask	= ERR_CNT_MASK,
	}, {
		.string	= "phy_serdes_tx_good_pkt_count",
		.reg	= MSCC_PHY_SERDES_TX_VALID_CNT,
		.page	= MSCC_PHY_PAGE_EXTENDED_3,
		.mask	= VALID_CRC_CNT_CRC_MASK,
	}, {
		.string	= "phy_serdes_tx_bad_crc_count",
		.reg	= MSCC_PHY_SERDES_TX_CRC_ERR_CNT,
		.page	= MSCC_PHY_PAGE_EXTENDED_3,
		.mask	= ERR_CNT_MASK,
	}, {
		.string	= "phy_serdes_rx_good_pkt_count",
		.reg	= MSCC_PHY_SERDES_RX_VALID_CNT,
		.page	= MSCC_PHY_PAGE_EXTENDED_3,
		.mask	= VALID_CRC_CNT_CRC_MASK,
	}, {
		.string	= "phy_serdes_rx_bad_crc_count",
		.reg	= MSCC_PHY_SERDES_RX_CRC_ERR_CNT,
		.page	= MSCC_PHY_PAGE_EXTENDED_3,
		.mask	= ERR_CNT_MASK,
	},
};

#if IS_ENABLED(CONFIG_OF_MDIO)
static const struct vsc8531_edge_rate_table edge_table[] = {
	{MSCC_VDDMAC_3300, { 0, 2,  4,  7, 10, 17, 29, 53} },
	{MSCC_VDDMAC_2500, { 0, 3,  6, 10, 14, 23, 37, 63} },
	{MSCC_VDDMAC_1800, { 0, 5,  9, 16, 23, 35, 52, 76} },
	{MSCC_VDDMAC_1500, { 0, 6, 14, 21, 29, 42, 58, 77} },
};
#endif

static const int vsc85xx_internal_delay[] = {200, 800, 1100, 1700, 2000, 2300,
					     2600, 3400};

static int vsc85xx_phy_read_page(struct phy_device *phydev)
{
	return __phy_read(phydev, MSCC_EXT_PAGE_ACCESS);
}

static int vsc85xx_phy_write_page(struct phy_device *phydev, int page)
{
	return __phy_write(phydev, MSCC_EXT_PAGE_ACCESS, page);
}

static int vsc85xx_get_sset_count(struct phy_device *phydev)
{
	struct vsc8531_private *priv = phydev->priv;

	if (!priv)
		return 0;

	return priv->nstats;
}

static void vsc85xx_get_strings(struct phy_device *phydev, u8 *data)
{
	struct vsc8531_private *priv = phydev->priv;
	int i;

	if (!priv)
		return;

	for (i = 0; i < priv->nstats; i++)
		ethtool_puts(&data, priv->hw_stats[i].string);
}

static u64 vsc85xx_get_stat(struct phy_device *phydev, int i)
{
	struct vsc8531_private *priv = phydev->priv;
	int val;

	val = phy_read_paged(phydev, priv->hw_stats[i].page,
			     priv->hw_stats[i].reg);
	if (val < 0)
		return U64_MAX;

	val = val & priv->hw_stats[i].mask;
	priv->stats[i] += val;

	return priv->stats[i];
}

static void vsc85xx_get_stats(struct phy_device *phydev,
			      struct ethtool_stats *stats, u64 *data)
{
	struct vsc8531_private *priv = phydev->priv;
	int i;

	if (!priv)
		return;

	for (i = 0; i < priv->nstats; i++)
		data[i] = vsc85xx_get_stat(phydev, i);
}

static int vsc85xx_led_cntl_set(struct phy_device *phydev,
				u8 led_num,
				u8 mode)
{
	u16 mask = LED_MODE_SEL_MASK(led_num);
	u16 val = LED_MODE_SEL(led_num, mode);

	return phy_modify(phydev, MSCC_PHY_LED_MODE_SEL, mask, val);
}

static int vsc85xx_led_combine_disable_set(struct phy_device *phydev,
					   u8 led_num, bool combine_disable)
{
	u16 val = LED_COMBINE_DIS(led_num, combine_disable);
	u16 mask = LED_COMBINE_DIS_MASK(led_num);

	return phy_modify(phydev, MSCC_PHY_LED_BEHAVIOR, mask, val);
}

static int vsc85xx_mdix_get(struct phy_device *phydev, u8 *mdix)
{
	u16 reg_val;

	reg_val = phy_read(phydev, MSCC_PHY_DEV_AUX_CNTL);
	if (reg_val & HP_AUTO_MDIX_X_OVER_IND_MASK)
		*mdix = ETH_TP_MDI_X;
	else
		*mdix = ETH_TP_MDI;

	return 0;
}

static int vsc85xx_mdix_set(struct phy_device *phydev, u8 mdix)
{
	int rc;
	u16 reg_val;

	reg_val = phy_read(phydev, MSCC_PHY_BYPASS_CONTROL);
	if (mdix == ETH_TP_MDI || mdix == ETH_TP_MDI_X) {
		reg_val |= (DISABLE_PAIR_SWAP_CORR_MASK |
			    DISABLE_POLARITY_CORR_MASK  |
			    DISABLE_HP_AUTO_MDIX_MASK);
	} else {
		reg_val &= ~(DISABLE_PAIR_SWAP_CORR_MASK |
			     DISABLE_POLARITY_CORR_MASK  |
			     DISABLE_HP_AUTO_MDIX_MASK);
	}
	rc = phy_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg_val);
	if (rc)
		return rc;

	reg_val = 0;

	if (mdix == ETH_TP_MDI)
		reg_val = FORCE_MDI_CROSSOVER_MDI;
	else if (mdix == ETH_TP_MDI_X)
		reg_val = FORCE_MDI_CROSSOVER_MDIX;

	rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
			      MSCC_PHY_EXT_MODE_CNTL, FORCE_MDI_CROSSOVER_MASK,
			      reg_val);
	if (rc < 0)
		return rc;

	return genphy_restart_aneg(phydev);
}

static int vsc85xx_downshift_get(struct phy_device *phydev, u8 *count)
{
	int reg_val;

	reg_val = phy_read_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
				 MSCC_PHY_ACTIPHY_CNTL);
	if (reg_val < 0)
		return reg_val;

	reg_val &= DOWNSHIFT_CNTL_MASK;
	if (!(reg_val & DOWNSHIFT_EN))
		*count = DOWNSHIFT_DEV_DISABLE;
	else
		*count = ((reg_val & ~DOWNSHIFT_EN) >> DOWNSHIFT_CNTL_POS) + 2;

	return 0;
}

static int vsc85xx_downshift_set(struct phy_device *phydev, u8 count)
{
	if (count == DOWNSHIFT_DEV_DEFAULT_COUNT) {
		/* Default downshift count 3 (i.e. Bit3:2 = 0b01) */
		count = ((1 << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN);
	} else if (count > DOWNSHIFT_COUNT_MAX || count == 1) {
		phydev_err(phydev, "Downshift count should be 2,3,4 or 5\n");
		return -ERANGE;
	} else if (count) {
		/* Downshift count is either 2,3,4 or 5 */
		count = (((count - 2) << DOWNSHIFT_CNTL_POS) | DOWNSHIFT_EN);
	}

	return phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED,
				MSCC_PHY_ACTIPHY_CNTL, DOWNSHIFT_CNTL_MASK,
				count);
}

static int vsc85xx_wol_set(struct phy_device *phydev,
			   struct ethtool_wolinfo *wol)
{
	const u8 *mac_addr = phydev->attached_dev->dev_addr;
	int rc;
	u16 reg_val;
	u8  i;
	u16 pwd[3] = {0, 0, 0};
	struct ethtool_wolinfo *wol_conf = wol;

	rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2);
	if (rc < 0)
		return phy_restore_page(phydev, rc, rc);

	if (wol->wolopts & WAKE_MAGIC) {
		/* Store the device address for the magic packet */
		for (i = 0; i < ARRAY_SIZE(pwd); i++)
			pwd[i] = mac_addr[5 - (i * 2 + 1)] << 8 |
				 mac_addr[5 - i * 2];
		__phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, pwd[0]);
		__phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, pwd[1]);
		__phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, pwd[2]);
	} else {
		__phy_write(phydev, MSCC_PHY_WOL_LOWER_MAC_ADDR, 0);
		__phy_write(phydev, MSCC_PHY_WOL_MID_MAC_ADDR, 0);
		__phy_write(phydev, MSCC_PHY_WOL_UPPER_MAC_ADDR, 0);
	}

	if (wol_conf->wolopts & WAKE_MAGICSECURE) {
		for (i = 0; i < ARRAY_SIZE(pwd); i++)
			pwd[i] = wol_conf->sopass[5 - (i * 2 + 1)] << 8 |
				 wol_conf->sopass[5 - i * 2];
		__phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, pwd[0]);
		__phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, pwd[1]);
		__phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, pwd[2]);
	} else {
		__phy_write(phydev, MSCC_PHY_WOL_LOWER_PASSWD, 0);
		__phy_write(phydev, MSCC_PHY_WOL_MID_PASSWD, 0);
		__phy_write(phydev, MSCC_PHY_WOL_UPPER_PASSWD, 0);
	}

	reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL);
	if (wol_conf->wolopts & WAKE_MAGICSECURE)
		reg_val |= SECURE_ON_ENABLE;
	else
		reg_val &= ~SECURE_ON_ENABLE;
	__phy_write(phydev, MSCC_PHY_WOL_MAC_CONTROL, reg_val);

	rc = phy_restore_page(phydev, rc, rc > 0 ? 0 : rc);
	if (rc < 0)
		return rc;

	if (wol->wolopts & WAKE_MAGIC) {
		/* Enable the WOL interrupt */
		reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK);
		reg_val |= MII_VSC85XX_INT_MASK_WOL;
		rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val);
		if (rc)
			return rc;
	} else {
		/* Disable the WOL interrupt */
		reg_val = phy_read(phydev, MII_VSC85XX_INT_MASK);
		reg_val &= (~MII_VSC85XX_INT_MASK_WOL);
		rc = phy_write(phydev, MII_VSC85XX_INT_MASK, reg_val);
		if (rc)
			return rc;
	}
	/* Clear WOL iterrupt status */
	reg_val = phy_read(phydev, MII_VSC85XX_INT_STATUS);

	return 0;
}

static void vsc85xx_wol_get(struct phy_device *phydev,
			    struct ethtool_wolinfo *wol)
{
	int rc;
	u16 reg_val;
	u8  i;
	u16 pwd[3] = {0, 0, 0};
	struct ethtool_wolinfo *wol_conf = wol;

	rc = phy_select_page(phydev, MSCC_PHY_PAGE_EXTENDED_2);
	if (rc < 0)
		goto out_restore_page;

	reg_val = __phy_read(phydev, MSCC_PHY_WOL_MAC_CONTROL);
	if (reg_val & SECURE_ON_ENABLE)
		wol_conf->wolopts |= WAKE_MAGICSECURE;
	if (wol_conf->wolopts & WAKE_MAGICSECURE) {
		pwd[0] = __phy_read(phydev, MSCC_PHY_WOL_LOWER_PASSWD);
		pwd[1] = __phy_read(phydev, MSCC_PHY_WOL_MID_PASSWD);
		pwd[2] = __phy_read(phydev, MSCC_PHY_WOL_UPPER_PASSWD);
		for (i = 0; i < ARRAY_SIZE(pwd); i++) {
			wol_conf->sopass[5 - i * 2] = pwd[i] & 0x00ff;
			wol_conf->sopass[5 - (i * 2 + 1)] = (pwd[i] & 0xff00)
							    >> 8;
		}
	}

out_restore_page:
	phy_restore_page(phydev, rc, rc > 0 ? 0 : rc);
}

#if IS_ENABLED(CONFIG_OF_MDIO)
static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev)
{
	u32 vdd, sd;
	int i, j;
	struct device *dev = &phydev->mdio.dev;
	struct device_node *of_node = dev->of_node;
	u8 sd_array_size = ARRAY_SIZE(edge_table[0].slowdown);

	if (!of_node)
		return -ENODEV;

	if (of_property_read_u32(of_node, "vsc8531,vddmac", &vdd))
		vdd = MSCC_VDDMAC_3300;

	if (of_property_read_u32(of_node, "vsc8531,edge-slowdown", &sd))
		sd = 0;

	for (i = 0; i < ARRAY_SIZE(edge_table); i++)
		if (edge_table[i].vddmac == vdd)
			for (j = 0; j < sd_array_size; j++)
				if (edge_table[i].slowdown[j] == sd)
					return (sd_array_size - j - 1);

	return -EINVAL;
}

static int vsc85xx_dt_led_mode_get(struct phy_device *phydev,
				   char *led,
				   u32 default_mode)
{
	struct vsc8531_private *priv = phydev->priv;
	struct device *dev = &phydev->mdio.dev;
	struct device_node *of_node = dev->of_node;
	u32 led_mode;
	int err;

	if (!of_node)
		return -ENODEV;

	led_mode = default_mode;
	err = of_property_read_u32(of_node, led, &led_mode);
	if (!err && !(BIT(led_mode) & priv->supp_led_modes)) {
		phydev_err(phydev, "DT %s invalid\n", led);
		return -EINVAL;
	}

	return led_mode;
}

#else
static int vsc85xx_edge_rate_magic_get(struct phy_device *phydev)
{
	return 0;
}

static int vsc85xx_dt_led_mode_get(struct phy_device *phydev,
				   char *led,
				   u8 default_mode)
{
	return default_mode;
}
#endif /* CONFIG_OF_MDIO */

static int vsc85xx_dt_led_modes_get(struct phy_device *phydev,
				    const u32 *default_mode)
{
	struct vsc8531_private *priv = phydev->priv;
	char led_dt_prop[28];
	int i, ret;

	for (i = 0; i < priv->nleds; i++) {
		ret = sprintf(led_dt_prop, "vsc8531,led-%d-mode", i);
		if (ret < 0)
			return ret;

		ret = vsc85xx_dt_led_mode_get(phydev, led_dt_prop,
					      default_mode[i]);
		if (ret < 0)
			return ret;
		priv->leds_mode[i] = ret;
	}

	return 0;
}

static int vsc85xx_edge_rate_cntl_set(struct phy_device *phydev, u8 edge_rate)
{
	int rc;

	mutex_lock(&phydev->lock);
	rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2,
			      MSCC_PHY_WOL_MAC_CONTROL, EDGE_RATE_CNTL_MASK,
			      edge_rate << EDGE_RATE_CNTL_POS);
	mutex_unlock(&phydev->lock);

	return rc;
}

static int vsc85xx_mac_if_set(struct phy_device *phydev,
			      phy_interface_t interface)
{
	int rc;
	u16 reg_val;

	mutex_lock(&phydev->lock);
	reg_val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1);
	reg_val &= ~(MAC_IF_SELECTION_MASK);
	switch (interface) {
	case PHY_INTERFACE_MODE_RGMII_TXID:
	case PHY_INTERFACE_MODE_RGMII_RXID:
	case PHY_INTERFACE_MODE_RGMII_ID:
	case PHY_INTERFACE_MODE_RGMII:
		reg_val |= (MAC_IF_SELECTION_RGMII << MAC_IF_SELECTION_POS);
		break;
	case PHY_INTERFACE_MODE_RMII:
		reg_val |= (MAC_IF_SELECTION_RMII << MAC_IF_SELECTION_POS);
		break;
	case PHY_INTERFACE_MODE_MII:
	case PHY_INTERFACE_MODE_GMII:
		reg_val |= (MAC_IF_SELECTION_GMII << MAC_IF_SELECTION_POS);
		break;
	default:
		rc = -EINVAL;
		goto out_unlock;
	}
	rc = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, reg_val);
	if (rc)
		goto out_unlock;

	rc = genphy_soft_reset(phydev);

out_unlock:
	mutex_unlock(&phydev->lock);

	return rc;
}

/* Set the RGMII RX and TX clock skews individually, according to the PHY
 * interface type, to:
 *  * 0.2 ns (their default, and lowest, hardware value) if delays should
 *    not be enabled
 *  * 2.0 ns (which causes the data to be sampled at exactly half way between
 *    clock transitions at 1000 Mbps) if delays should be enabled
 */
static int vsc85xx_update_rgmii_cntl(struct phy_device *phydev, u32 rgmii_cntl,
				     u16 rgmii_rx_delay_mask,
				     u16 rgmii_tx_delay_mask)
{
	u16 rgmii_rx_delay_pos = ffs(rgmii_rx_delay_mask) - 1;
	u16 rgmii_tx_delay_pos = ffs(rgmii_tx_delay_mask) - 1;
	int delay_size = ARRAY_SIZE(vsc85xx_internal_delay);
	u16 reg_val = 0;
	u16 mask = 0;
	s32 rx_delay;
	s32 tx_delay;
	int rc = 0;

	/* For traffic to pass, the VSC8502 family needs the RX_CLK disable bit
	 * to be unset for all PHY modes, so do that as part of the paged
	 * register modification.
	 * For some family members (like VSC8530/31/40/41) this bit is reserved
	 * and read-only, and the RX clock is enabled by default.
	 */
	if (rgmii_cntl == VSC8502_RGMII_CNTL)
		mask |= VSC8502_RGMII_RX_CLK_DISABLE;

	if (phy_interface_is_rgmii(phydev))
		mask |= rgmii_rx_delay_mask | rgmii_tx_delay_mask;

	rx_delay = phy_get_internal_delay(phydev, vsc85xx_internal_delay,
					  delay_size, true);
	if (rx_delay < 0) {
		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_RXID ||
		    phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
			rx_delay = RGMII_CLK_DELAY_2_0_NS;
		else
			rx_delay = RGMII_CLK_DELAY_0_2_NS;
	}

	tx_delay = phy_get_internal_delay(phydev, vsc85xx_internal_delay,
					  delay_size, false);
	if (tx_delay < 0) {
		if (phydev->interface == PHY_INTERFACE_MODE_RGMII_TXID ||
		    phydev->interface == PHY_INTERFACE_MODE_RGMII_ID)
			tx_delay = RGMII_CLK_DELAY_2_0_NS;
		else
			tx_delay = RGMII_CLK_DELAY_0_2_NS;
	}

	reg_val |= rx_delay << rgmii_rx_delay_pos;
	reg_val |= tx_delay << rgmii_tx_delay_pos;

	if (mask)
		rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_2,
				      rgmii_cntl, mask, reg_val);

	return rc;
}

static int vsc85xx_default_config(struct phy_device *phydev)
{
	phydev->mdix_ctrl = ETH_TP_MDI_AUTO;

	return vsc85xx_update_rgmii_cntl(phydev, VSC8502_RGMII_CNTL,
					 VSC8502_RGMII_RX_DELAY_MASK,
					 VSC8502_RGMII_TX_DELAY_MASK);
}

static int vsc85xx_get_tunable(struct phy_device *phydev,
			       struct ethtool_tunable *tuna, void *data)
{
	switch (tuna->id) {
	case ETHTOOL_PHY_DOWNSHIFT:
		return vsc85xx_downshift_get(phydev, (u8 *)data);
	default:
		return -EINVAL;
	}
}

static int vsc85xx_set_tunable(struct phy_device *phydev,
			       struct ethtool_tunable *tuna,
			       const void *data)
{
	switch (tuna->id) {
	case ETHTOOL_PHY_DOWNSHIFT:
		return vsc85xx_downshift_set(phydev, *(u8 *)data);
	default:
		return -EINVAL;
	}
}

/* mdiobus lock should be locked when using this function */
static void vsc85xx_tr_write(struct phy_device *phydev, u16 addr, u32 val)
{
	__phy_write(phydev, MSCC_PHY_TR_MSB, val >> 16);
	__phy_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0));
	__phy_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr));
}

static int vsc8531_pre_init_seq_set(struct phy_device *phydev)
{
	int rc;
	static const struct reg_val init_seq[] = {
		{0x0f90, 0x00688980},
		{0x0696, 0x00000003},
		{0x07fa, 0x0050100f},
		{0x1686, 0x00000004},
	};
	unsigned int i;
	int oldpage;

	rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_STANDARD,
			      MSCC_PHY_EXT_CNTL_STATUS, SMI_BROADCAST_WR_EN,
			      SMI_BROADCAST_WR_EN);
	if (rc < 0)
		return rc;
	rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST,
			      MSCC_PHY_TEST_PAGE_24, 0, 0x0400);
	if (rc < 0)
		return rc;
	rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST,
			      MSCC_PHY_TEST_PAGE_5, 0x0a00, 0x0e00);
	if (rc < 0)
		return rc;
	rc = phy_modify_paged(phydev, MSCC_PHY_PAGE_TEST,
			      MSCC_PHY_TEST_PAGE_8, TR_CLK_DISABLE, TR_CLK_DISABLE);
	if (rc < 0)
		return rc;

	mutex_lock(&phydev->lock);
	oldpage = phy_select_page(phydev, MSCC_PHY_PAGE_TR);
	if (oldpage < 0)
		goto out_unlock;

	for (i = 0; i < ARRAY_SIZE(init_seq); i++)
		vsc85xx_tr_write(phydev, init_seq[i].reg, init_seq[i].val);

out_unlock:
	oldpage = phy_restore_page(phydev, oldpage, oldpage);
	mutex_unlock(&phydev->lock);

	return oldpage;
}

static int vsc85xx_eee_init_seq_set(struct phy_device *phydev)
{
	static const struct reg_val init_eee[] = {
		{0x0f82, 0x0012b00a},
		{0x1686, 0x00000004},
		{0x168c, 0x00d2c46f},
		{0x17a2, 0x00000620},
		{0x16a0, 0x00eeffdd},
		{0x16a6, 0x00071448},
		{0x16a4, 0x0013132f},
		{0x16a8, 0x00000000},
		{0x0ffc, 0x00c0a028},
		{0x0fe8, 0x0091b06c},
		{0x0fea, 0x00041600},
		{0x0f80, 0x00000af4},
		{0x0fec, 0x00901809},
		{0x0fee, 0x0000a6a1},
		{0x0ffe, 0x00b01007},
		{0x16b0, 0x00eeff00},
		{0x16b2, 0x00007000},
		{0x16b4, 0x00000814},
	};
	unsigned int i;
	int oldpage;

	mutex_lock(&phydev->lock);
	oldpage = phy_select_page(phydev, MSCC_PHY_PAGE_TR);
	if (oldpage < 0)
		goto out_unlock;

	for (i = 0; i < ARRAY_SIZE(init_eee); i++)
		vsc85xx_tr_write(phydev, init_eee[i].reg, init_eee[i].val);

out_unlock:
	oldpage = phy_restore_page(phydev, oldpage, oldpage);
	mutex_unlock(&phydev->lock);

	return oldpage;
}

/* phydev->bus->mdio_lock should be locked when using this function */
int phy_base_write(struct phy_device *phydev, u32 regnum, u16 val)
{
	if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) {
		dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n");
		dump_stack();
	}

	return __phy_package_write(phydev, VSC88XX_BASE_ADDR, regnum, val);
}

/* phydev->bus->mdio_lock should be locked when using this function */
int phy_base_read(struct phy_device *phydev, u32 regnum)
{
	if (unlikely(!mutex_is_locked(&phydev->mdio.bus->mdio_lock))) {
		dev_err(&phydev->mdio.dev, "MDIO bus lock not held!\n");
		dump_stack();
	}

	return __phy_package_read(phydev, VSC88XX_BASE_ADDR, regnum);
}

u32 vsc85xx_csr_read(struct phy_device *phydev,
		     enum csr_target target, u32 reg)
{
	unsigned long deadline;
	u32 val, val_l, val_h;

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_CSR_CNTL);

	/* CSR registers are grouped under different Target IDs.
	 * 6-bit Target_ID is split between MSCC_EXT_PAGE_CSR_CNTL_20 and
	 * MSCC_EXT_PAGE_CSR_CNTL_19 registers.
	 * Target_ID[5:2] maps to bits[3:0] of MSCC_EXT_PAGE_CSR_CNTL_20
	 * and Target_ID[1:0] maps to bits[13:12] of MSCC_EXT_PAGE_CSR_CNTL_19.
	 */

	/* Setup the Target ID */
	phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_20,
		       MSCC_PHY_CSR_CNTL_20_TARGET(target >> 2));

	if ((target >> 2 == 0x1) || (target >> 2 == 0x3))
		/* non-MACsec access */
		target &= 0x3;
	else
		target = 0;

	/* Trigger CSR Action - Read into the CSR's */
	phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_19,
		       MSCC_PHY_CSR_CNTL_19_CMD | MSCC_PHY_CSR_CNTL_19_READ |
		       MSCC_PHY_CSR_CNTL_19_REG_ADDR(reg) |
		       MSCC_PHY_CSR_CNTL_19_TARGET(target));

	/* Wait for register access*/
	deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
	do {
		usleep_range(500, 1000);
		val = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_19);
	} while (time_before(jiffies, deadline) &&
		!(val & MSCC_PHY_CSR_CNTL_19_CMD));

	if (!(val & MSCC_PHY_CSR_CNTL_19_CMD))
		return 0xffffffff;

	/* Read the Least Significant Word (LSW) (17) */
	val_l = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_17);

	/* Read the Most Significant Word (MSW) (18) */
	val_h = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_18);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
		       MSCC_PHY_PAGE_STANDARD);

	return (val_h << 16) | val_l;
}

int vsc85xx_csr_write(struct phy_device *phydev,
		      enum csr_target target, u32 reg, u32 val)
{
	unsigned long deadline;

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_CSR_CNTL);

	/* CSR registers are grouped under different Target IDs.
	 * 6-bit Target_ID is split between MSCC_EXT_PAGE_CSR_CNTL_20 and
	 * MSCC_EXT_PAGE_CSR_CNTL_19 registers.
	 * Target_ID[5:2] maps to bits[3:0] of MSCC_EXT_PAGE_CSR_CNTL_20
	 * and Target_ID[1:0] maps to bits[13:12] of MSCC_EXT_PAGE_CSR_CNTL_19.
	 */

	/* Setup the Target ID */
	phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_20,
		       MSCC_PHY_CSR_CNTL_20_TARGET(target >> 2));

	/* Write the Least Significant Word (LSW) (17) */
	phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_17, (u16)val);

	/* Write the Most Significant Word (MSW) (18) */
	phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_18, (u16)(val >> 16));

	if ((target >> 2 == 0x1) || (target >> 2 == 0x3))
		/* non-MACsec access */
		target &= 0x3;
	else
		target = 0;

	/* Trigger CSR Action - Write into the CSR's */
	phy_base_write(phydev, MSCC_EXT_PAGE_CSR_CNTL_19,
		       MSCC_PHY_CSR_CNTL_19_CMD |
		       MSCC_PHY_CSR_CNTL_19_REG_ADDR(reg) |
		       MSCC_PHY_CSR_CNTL_19_TARGET(target));

	/* Wait for register access */
	deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
	do {
		usleep_range(500, 1000);
		val = phy_base_read(phydev, MSCC_EXT_PAGE_CSR_CNTL_19);
	} while (time_before(jiffies, deadline) &&
		 !(val & MSCC_PHY_CSR_CNTL_19_CMD));

	if (!(val & MSCC_PHY_CSR_CNTL_19_CMD))
		return -ETIMEDOUT;

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
		       MSCC_PHY_PAGE_STANDARD);

	return 0;
}

/* bus->mdio_lock should be locked when using this function */
static void vsc8584_csr_write(struct phy_device *phydev, u16 addr, u32 val)
{
	phy_base_write(phydev, MSCC_PHY_TR_MSB, val >> 16);
	phy_base_write(phydev, MSCC_PHY_TR_LSB, val & GENMASK(15, 0));
	phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(addr));
}

/* bus->mdio_lock should be locked when using this function */
int vsc8584_cmd(struct phy_device *phydev, u16 val)
{
	unsigned long deadline;
	u16 reg_val;

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
		       MSCC_PHY_PAGE_EXTENDED_GPIO);

	phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NCOMPLETED | val);

	deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
	do {
		reg_val = phy_base_read(phydev, MSCC_PHY_PROC_CMD);
	} while (time_before(jiffies, deadline) &&
		 (reg_val & PROC_CMD_NCOMPLETED) &&
		 !(reg_val & PROC_CMD_FAILED));

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	if (reg_val & PROC_CMD_FAILED)
		return -EIO;

	if (reg_val & PROC_CMD_NCOMPLETED)
		return -ETIMEDOUT;

	return 0;
}

/* bus->mdio_lock should be locked when using this function */
static int vsc8584_micro_deassert_reset(struct phy_device *phydev,
					bool patch_en)
{
	u32 enable, release;

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
		       MSCC_PHY_PAGE_EXTENDED_GPIO);

	enable = RUN_FROM_INT_ROM | MICRO_CLK_EN | DW8051_CLK_EN;
	release = MICRO_NSOFT_RESET | RUN_FROM_INT_ROM | DW8051_CLK_EN |
		MICRO_CLK_EN;

	if (patch_en) {
		enable |= MICRO_PATCH_EN;
		release |= MICRO_PATCH_EN;

		/* Clear all patches */
		phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM);
	}

	/* Enable 8051 Micro clock; CLEAR/SET patch present; disable PRAM clock
	 * override and addr. auto-incr; operate at 125 MHz
	 */
	phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, enable);
	/* Release 8051 Micro SW reset */
	phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, release);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	return 0;
}

/* bus->mdio_lock should be locked when using this function */
static int vsc8584_micro_assert_reset(struct phy_device *phydev)
{
	int ret;
	u16 reg;

	ret = vsc8584_cmd(phydev, PROC_CMD_NOP);
	if (ret)
		return ret;

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
		       MSCC_PHY_PAGE_EXTENDED_GPIO);

	reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
	reg &= ~EN_PATCH_RAM_TRAP_ADDR(4);
	phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);

	phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(4), 0x005b);
	phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(4), 0x005b);

	reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
	reg |= EN_PATCH_RAM_TRAP_ADDR(4);
	phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);

	phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_NOP);

	reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS);
	reg &= ~MICRO_NSOFT_RESET;
	phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, reg);

	phy_base_write(phydev, MSCC_PHY_PROC_CMD, PROC_CMD_MCB_ACCESS_MAC_CONF |
		       PROC_CMD_SGMII_PORT(0) | PROC_CMD_NO_MAC_CONF |
		       PROC_CMD_READ);

	reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
	reg &= ~EN_PATCH_RAM_TRAP_ADDR(4);
	phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	return 0;
}

/* bus->mdio_lock should be locked when using this function */
static int vsc8584_get_fw_crc(struct phy_device *phydev, u16 start, u16 size,
			      u16 *crc)
{
	int ret;

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);

	phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_2, start);
	phy_base_write(phydev, MSCC_PHY_VERIPHY_CNTL_3, size);

	/* Start Micro command */
	ret = vsc8584_cmd(phydev, PROC_CMD_CRC16);
	if (ret)
		goto out;

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);

	*crc = phy_base_read(phydev, MSCC_PHY_VERIPHY_CNTL_2);

out:
	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	return ret;
}

/* bus->mdio_lock should be locked when using this function */
static int vsc8584_patch_fw(struct phy_device *phydev,
			    const struct firmware *fw)
{
	int i, ret;

	ret = vsc8584_micro_assert_reset(phydev);
	if (ret) {
		dev_err(&phydev->mdio.dev,
			"%s: failed to assert reset of micro\n", __func__);
		return ret;
	}

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
		       MSCC_PHY_PAGE_EXTENDED_GPIO);

	/* Hold 8051 Micro in SW Reset, Enable auto incr address and patch clock
	 * Disable the 8051 Micro clock
	 */
	phy_base_write(phydev, MSCC_DW8051_CNTL_STATUS, RUN_FROM_INT_ROM |
		       AUTOINC_ADDR | PATCH_RAM_CLK | MICRO_CLK_EN |
		       MICRO_CLK_DIVIDE(2));
	phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM | INT_MEM_WRITE_EN |
		       INT_MEM_DATA(2));
	phy_base_write(phydev, MSCC_INT_MEM_ADDR, 0x0000);

	for (i = 0; i < fw->size; i++)
		phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_PRAM |
			       INT_MEM_WRITE_EN | fw->data[i]);

	/* Clear internal memory access */
	phy_base_write(phydev, MSCC_INT_MEM_CNTL, READ_RAM);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	return 0;
}

/* bus->mdio_lock should be locked when using this function */
static bool vsc8574_is_serdes_init(struct phy_device *phydev)
{
	u16 reg;
	bool ret;

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
		       MSCC_PHY_PAGE_EXTENDED_GPIO);

	reg = phy_base_read(phydev, MSCC_TRAP_ROM_ADDR(1));
	if (reg != 0x3eb7) {
		ret = false;
		goto out;
	}

	reg = phy_base_read(phydev, MSCC_PATCH_RAM_ADDR(1));
	if (reg != 0x4012) {
		ret = false;
		goto out;
	}

	reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
	if (reg != EN_PATCH_RAM_TRAP_ADDR(1)) {
		ret = false;
		goto out;
	}

	reg = phy_base_read(phydev, MSCC_DW8051_CNTL_STATUS);
	if ((MICRO_NSOFT_RESET | RUN_FROM_INT_ROM |  DW8051_CLK_EN |
	     MICRO_CLK_EN) != (reg & MSCC_DW8051_VLD_MASK)) {
		ret = false;
		goto out;
	}

	ret = true;
out:
	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	return ret;
}

/* bus->mdio_lock should be locked when using this function */
static int vsc8574_config_pre_init(struct phy_device *phydev)
{
	static const struct reg_val pre_init1[] = {
		{0x0fae, 0x000401bd},
		{0x0fac, 0x000f000f},
		{0x17a0, 0x00a0f147},
		{0x0fe4, 0x00052f54},
		{0x1792, 0x0027303d},
		{0x07fe, 0x00000704},
		{0x0fe0, 0x00060150},
		{0x0f82, 0x0012b00a},
		{0x0f80, 0x00000d74},
		{0x02e0, 0x00000012},
		{0x03a2, 0x00050208},
		{0x03b2, 0x00009186},
		{0x0fb0, 0x000e3700},
		{0x1688, 0x00049f81},
		{0x0fd2, 0x0000ffff},
		{0x168a, 0x00039fa2},
		{0x1690, 0x0020640b},
		{0x0258, 0x00002220},
		{0x025a, 0x00002a20},
		{0x025c, 0x00003060},
		{0x025e, 0x00003fa0},
		{0x03a6, 0x0000e0f0},
		{0x0f92, 0x00001489},
		{0x16a2, 0x00007000},
		{0x16a6, 0x00071448},
		{0x16a0, 0x00eeffdd},
		{0x0fe8, 0x0091b06c},
		{0x0fea, 0x00041600},
		{0x16b0, 0x00eeff00},
		{0x16b2, 0x00007000},
		{0x16b4, 0x00000814},
		{0x0f90, 0x00688980},
		{0x03a4, 0x0000d8f0},
		{0x0fc0, 0x00000400},
		{0x07fa, 0x0050100f},
		{0x0796, 0x00000003},
		{0x07f8, 0x00c3ff98},
		{0x0fa4, 0x0018292a},
		{0x168c, 0x00d2c46f},
		{0x17a2, 0x00000620},
		{0x16a4, 0x0013132f},
		{0x16a8, 0x00000000},
		{0x0ffc, 0x00c0a028},
		{0x0fec, 0x00901c09},
		{0x0fee, 0x0004a6a1},
		{0x0ffe, 0x00b01807},
	};
	static const struct reg_val pre_init2[] = {
		{0x0486, 0x0008a518},
		{0x0488, 0x006dc696},
		{0x048a, 0x00000912},
		{0x048e, 0x00000db6},
		{0x049c, 0x00596596},
		{0x049e, 0x00000514},
		{0x04a2, 0x00410280},
		{0x04a4, 0x00000000},
		{0x04a6, 0x00000000},
		{0x04a8, 0x00000000},
		{0x04aa, 0x00000000},
		{0x04ae, 0x007df7dd},
		{0x04b0, 0x006d95d4},
		{0x04b2, 0x00492410},
	};
	struct device *dev = &phydev->mdio.dev;
	const struct firmware *fw;
	unsigned int i;
	u16 crc, reg;
	bool serdes_init;
	int ret;

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	/* all writes below are broadcasted to all PHYs in the same package */
	reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
	reg |= SMI_BROADCAST_WR_EN;
	phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);

	phy_base_write(phydev, MII_VSC85XX_INT_MASK, 0);

	/* The below register writes are tweaking analog and electrical
	 * configuration that were determined through characterization by PHY
	 * engineers. These don't mean anything more than "these are the best
	 * values".
	 */
	phy_base_write(phydev, MSCC_PHY_EXT_PHY_CNTL_2, 0x0040);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);

	phy_base_write(phydev, MSCC_PHY_TEST_PAGE_20, 0x4320);
	phy_base_write(phydev, MSCC_PHY_TEST_PAGE_24, 0x0c00);
	phy_base_write(phydev, MSCC_PHY_TEST_PAGE_9, 0x18ca);
	phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1b20);

	reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
	reg |= TR_CLK_DISABLE;
	phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);

	for (i = 0; i < ARRAY_SIZE(pre_init1); i++)
		vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2);

	phy_base_write(phydev, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);

	for (i = 0; i < ARRAY_SIZE(pre_init2); i++)
		vsc8584_csr_write(phydev, pre_init2[i].reg, pre_init2[i].val);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);

	reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
	reg &= ~TR_CLK_DISABLE;
	phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	/* end of write broadcasting */
	reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
	reg &= ~SMI_BROADCAST_WR_EN;
	phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);

	ret = request_firmware(&fw, MSCC_VSC8574_REVB_INT8051_FW, dev);
	if (ret) {
		dev_err(dev, "failed to load firmware %s, ret: %d\n",
			MSCC_VSC8574_REVB_INT8051_FW, ret);
		return ret;
	}

	/* Add one byte to size for the one added by the patch_fw function */
	ret = vsc8584_get_fw_crc(phydev,
				 MSCC_VSC8574_REVB_INT8051_FW_START_ADDR,
				 fw->size + 1, &crc);
	if (ret)
		goto out;

	if (crc == MSCC_VSC8574_REVB_INT8051_FW_CRC) {
		serdes_init = vsc8574_is_serdes_init(phydev);

		if (!serdes_init) {
			ret = vsc8584_micro_assert_reset(phydev);
			if (ret) {
				dev_err(dev,
					"%s: failed to assert reset of micro\n",
					__func__);
				goto out;
			}
		}
	} else {
		dev_dbg(dev, "FW CRC is not the expected one, patching FW\n");

		serdes_init = false;

		if (vsc8584_patch_fw(phydev, fw))
			dev_warn(dev,
				 "failed to patch FW, expect non-optimal device\n");
	}

	if (!serdes_init) {
		phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
			       MSCC_PHY_PAGE_EXTENDED_GPIO);

		phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), 0x3eb7);
		phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), 0x4012);
		phy_base_write(phydev, MSCC_INT_MEM_CNTL,
			       EN_PATCH_RAM_TRAP_ADDR(1));

		vsc8584_micro_deassert_reset(phydev, false);

		/* Add one byte to size for the one added by the patch_fw
		 * function
		 */
		ret = vsc8584_get_fw_crc(phydev,
					 MSCC_VSC8574_REVB_INT8051_FW_START_ADDR,
					 fw->size + 1, &crc);
		if (ret)
			goto out;

		if (crc != MSCC_VSC8574_REVB_INT8051_FW_CRC)
			dev_warn(dev,
				 "FW CRC after patching is not the expected one, expect non-optimal device\n");
	}

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
		       MSCC_PHY_PAGE_EXTENDED_GPIO);

	ret = vsc8584_cmd(phydev, PROC_CMD_1588_DEFAULT_INIT |
			  PROC_CMD_PHY_INIT);

out:
	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	release_firmware(fw);

	return ret;
}

/* Access LCPLL Cfg_2 */
static void vsc8584_pll5g_cfg2_wr(struct phy_device *phydev,
				  bool disable_fsm)
{
	u32 rd_dat;

	rd_dat = vsc85xx_csr_read(phydev, MACRO_CTRL, PHY_S6G_PLL5G_CFG2);
	rd_dat &= ~BIT(PHY_S6G_CFG2_FSM_DIS);
	rd_dat |= (disable_fsm << PHY_S6G_CFG2_FSM_DIS);
	vsc85xx_csr_write(phydev, MACRO_CTRL, PHY_S6G_PLL5G_CFG2, rd_dat);
}

/* trigger a read to the spcified MCB */
static int vsc8584_mcb_rd_trig(struct phy_device *phydev,
			       u32 mcb_reg_addr, u8 mcb_slave_num)
{
	u32 rd_dat = 0;

	/* read MCB */
	vsc85xx_csr_write(phydev, MACRO_CTRL, mcb_reg_addr,
			  (0x40000000 | (1L << mcb_slave_num)));

	return read_poll_timeout(vsc85xx_csr_read, rd_dat,
				 !(rd_dat & 0x40000000),
				 4000, 200000, 0,
				 phydev, MACRO_CTRL, mcb_reg_addr);
}

/* trigger a write to the spcified MCB */
static int vsc8584_mcb_wr_trig(struct phy_device *phydev,
			       u32 mcb_reg_addr,
			       u8 mcb_slave_num)
{
	u32 rd_dat = 0;

	/* write back MCB */
	vsc85xx_csr_write(phydev, MACRO_CTRL, mcb_reg_addr,
			  (0x80000000 | (1L << mcb_slave_num)));

	return read_poll_timeout(vsc85xx_csr_read, rd_dat,
				 !(rd_dat & 0x80000000),
				 4000, 200000, 0,
				 phydev, MACRO_CTRL, mcb_reg_addr);
}

/* Sequence to Reset LCPLL for the VIPER and ELISE PHY */
static int vsc8584_pll5g_reset(struct phy_device *phydev)
{
	bool dis_fsm;
	int ret = 0;

	ret = vsc8584_mcb_rd_trig(phydev, 0x11, 0);
	if (ret < 0)
		goto done;
	dis_fsm = 1;

	/* Reset LCPLL */
	vsc8584_pll5g_cfg2_wr(phydev, dis_fsm);

	/* write back LCPLL MCB */
	ret = vsc8584_mcb_wr_trig(phydev, 0x11, 0);
	if (ret < 0)
		goto done;

	/* 10 mSec sleep while LCPLL is hold in reset */
	usleep_range(10000, 20000);

	/* read LCPLL MCB into CSRs */
	ret = vsc8584_mcb_rd_trig(phydev, 0x11, 0);
	if (ret < 0)
		goto done;
	dis_fsm = 0;

	/* Release the Reset of LCPLL */
	vsc8584_pll5g_cfg2_wr(phydev, dis_fsm);

	/* write back LCPLL MCB */
	ret = vsc8584_mcb_wr_trig(phydev, 0x11, 0);
	if (ret < 0)
		goto done;

	usleep_range(110000, 200000);
done:
	return ret;
}

/* bus->mdio_lock should be locked when using this function */
static int vsc8584_config_pre_init(struct phy_device *phydev)
{
	static const struct reg_val pre_init1[] = {
		{0x07fa, 0x0050100f},
		{0x1688, 0x00049f81},
		{0x0f90, 0x00688980},
		{0x03a4, 0x0000d8f0},
		{0x0fc0, 0x00000400},
		{0x0f82, 0x0012b002},
		{0x1686, 0x00000004},
		{0x168c, 0x00d2c46f},
		{0x17a2, 0x00000620},
		{0x16a0, 0x00eeffdd},
		{0x16a6, 0x00071448},
		{0x16a4, 0x0013132f},
		{0x16a8, 0x00000000},
		{0x0ffc, 0x00c0a028},
		{0x0fe8, 0x0091b06c},
		{0x0fea, 0x00041600},
		{0x0f80, 0x00fffaff},
		{0x0fec, 0x00901809},
		{0x0ffe, 0x00b01007},
		{0x16b0, 0x00eeff00},
		{0x16b2, 0x00007000},
		{0x16b4, 0x00000814},
	};
	static const struct reg_val pre_init2[] = {
		{0x0486, 0x0008a518},
		{0x0488, 0x006dc696},
		{0x048a, 0x00000912},
	};
	const struct firmware *fw;
	struct device *dev = &phydev->mdio.dev;
	unsigned int i;
	u16 crc, reg;
	int ret;

	ret = vsc8584_pll5g_reset(phydev);
	if (ret < 0) {
		dev_err(dev, "failed LCPLL reset, ret: %d\n", ret);
		return ret;
	}

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	/* all writes below are broadcasted to all PHYs in the same package */
	reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
	reg |= SMI_BROADCAST_WR_EN;
	phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);

	phy_base_write(phydev, MII_VSC85XX_INT_MASK, 0);

	reg = phy_base_read(phydev,  MSCC_PHY_BYPASS_CONTROL);
	reg |= PARALLEL_DET_IGNORE_ADVERTISED;
	phy_base_write(phydev, MSCC_PHY_BYPASS_CONTROL, reg);

	/* The below register writes are tweaking analog and electrical
	 * configuration that were determined through characterization by PHY
	 * engineers. These don't mean anything more than "these are the best
	 * values".
	 */
	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_3);

	phy_base_write(phydev, MSCC_PHY_SERDES_TX_CRC_ERR_CNT, 0x2000);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);

	phy_base_write(phydev, MSCC_PHY_TEST_PAGE_5, 0x1f20);

	reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
	reg |= TR_CLK_DISABLE;
	phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);

	phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x2fa4));

	reg = phy_base_read(phydev, MSCC_PHY_TR_MSB);
	reg &= ~0x007f;
	reg |= 0x0019;
	phy_base_write(phydev, MSCC_PHY_TR_MSB, reg);

	phy_base_write(phydev, MSCC_PHY_TR_CNTL, TR_WRITE | TR_ADDR(0x0fa4));

	for (i = 0; i < ARRAY_SIZE(pre_init1); i++)
		vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_2);

	phy_base_write(phydev, MSCC_PHY_CU_PMD_TX_CNTL, 0x028e);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);

	for (i = 0; i < ARRAY_SIZE(pre_init2); i++)
		vsc8584_csr_write(phydev, pre_init2[i].reg, pre_init2[i].val);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);

	reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
	reg &= ~TR_CLK_DISABLE;
	phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	/* end of write broadcasting */
	reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
	reg &= ~SMI_BROADCAST_WR_EN;
	phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);

	ret = request_firmware(&fw, MSCC_VSC8584_REVB_INT8051_FW, dev);
	if (ret) {
		dev_err(dev, "failed to load firmware %s, ret: %d\n",
			MSCC_VSC8584_REVB_INT8051_FW, ret);
		return ret;
	}

	/* Add one byte to size for the one added by the patch_fw function */
	ret = vsc8584_get_fw_crc(phydev,
				 MSCC_VSC8584_REVB_INT8051_FW_START_ADDR,
				 fw->size + 1, &crc);
	if (ret)
		goto out;

	if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC) {
		dev_dbg(dev, "FW CRC is not the expected one, patching FW\n");
		if (vsc8584_patch_fw(phydev, fw))
			dev_warn(dev,
				 "failed to patch FW, expect non-optimal device\n");
	}

	vsc8584_micro_deassert_reset(phydev, false);

	/* Add one byte to size for the one added by the patch_fw function */
	ret = vsc8584_get_fw_crc(phydev,
				 MSCC_VSC8584_REVB_INT8051_FW_START_ADDR,
				 fw->size + 1, &crc);
	if (ret)
		goto out;

	if (crc != MSCC_VSC8584_REVB_INT8051_FW_CRC)
		dev_warn(dev,
			 "FW CRC after patching is not the expected one, expect non-optimal device\n");

	ret = vsc8584_micro_assert_reset(phydev);
	if (ret)
		goto out;

	/* Write patch vector 0, to skip IB cal polling  */
	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED_GPIO);
	reg = MSCC_ROM_TRAP_SERDES_6G_CFG; /* ROM address to trap, for patch vector 0 */
	ret = phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), reg);
	if (ret)
		goto out;

	reg = MSCC_RAM_TRAP_SERDES_6G_CFG; /* RAM address to jump to, when patch vector 0 enabled */
	ret = phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), reg);
	if (ret)
		goto out;

	reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
	reg |= PATCH_VEC_ZERO_EN; /* bit 8, enable patch vector 0 */
	ret = phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
	if (ret)
		goto out;

	vsc8584_micro_deassert_reset(phydev, true);

out:
	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	release_firmware(fw);

	return ret;
}

static void vsc8584_get_base_addr(struct phy_device *phydev)
{
	struct vsc8531_private *vsc8531 = phydev->priv;
	u16 val, addr;

	phy_lock_mdio_bus(phydev);
	__phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_EXTENDED);

	addr = __phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_4);
	addr >>= PHY_CNTL_4_ADDR_POS;

	val = __phy_read(phydev, MSCC_PHY_ACTIPHY_CNTL);

	__phy_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);
	phy_unlock_mdio_bus(phydev);

	/* In the package, there are two pairs of PHYs (PHY0 + PHY2 and
	 * PHY1 + PHY3). The first PHY of each pair (PHY0 and PHY1) is
	 * the base PHY for timestamping operations.
	 */
	vsc8531->ts_base_addr = phydev->mdio.addr;
	vsc8531->ts_base_phy = addr;

	if (val & PHY_ADDR_REVERSED) {
		vsc8531->base_addr = phydev->mdio.addr + addr;
		if (addr > 1) {
			vsc8531->ts_base_addr += 2;
			vsc8531->ts_base_phy += 2;
		}
	} else {
		vsc8531->base_addr = phydev->mdio.addr - addr;
		if (addr > 1) {
			vsc8531->ts_base_addr -= 2;
			vsc8531->ts_base_phy -= 2;
		}
	}

	vsc8531->addr = addr;
}

static void vsc85xx_coma_mode_release(struct phy_device *phydev)
{
	/* The coma mode (pin or reg) provides an optional feature that
	 * may be used to control when the PHYs become active.
	 * Alternatively the COMA_MODE pin may be connected low
	 * so that the PHYs are fully active once out of reset.
	 */

	/* Enable output (mode=0) and write zero to it */
	vsc85xx_phy_write_page(phydev, MSCC_PHY_PAGE_EXTENDED_GPIO);
	__phy_modify(phydev, MSCC_PHY_GPIO_CONTROL_2,
		     MSCC_PHY_COMA_MODE | MSCC_PHY_COMA_OUTPUT, 0);
	vsc85xx_phy_write_page(phydev, MSCC_PHY_PAGE_STANDARD);
}

static int vsc8584_config_host_serdes(struct phy_device *phydev)
{
	struct vsc8531_private *vsc8531 = phydev->priv;
	int ret;
	u16 val;

	ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
			     MSCC_PHY_PAGE_EXTENDED_GPIO);
	if (ret)
		return ret;

	val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK);
	val &= ~MAC_CFG_MASK;
	if (phydev->interface == PHY_INTERFACE_MODE_QSGMII) {
		val |= MAC_CFG_QSGMII;
	} else if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
		val |= MAC_CFG_SGMII;
	} else {
		ret = -EINVAL;
		return ret;
	}

	ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val);
	if (ret)
		return ret;

	ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
			     MSCC_PHY_PAGE_STANDARD);
	if (ret)
		return ret;

	val = PROC_CMD_MCB_ACCESS_MAC_CONF | PROC_CMD_RST_CONF_PORT |
		PROC_CMD_READ_MOD_WRITE_PORT;
	if (phydev->interface == PHY_INTERFACE_MODE_QSGMII)
		val |= PROC_CMD_QSGMII_MAC;
	else
		val |= PROC_CMD_SGMII_MAC;

	ret = vsc8584_cmd(phydev, val);
	if (ret)
		return ret;

	usleep_range(10000, 20000);

	/* Disable SerDes for 100Base-FX */
	ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF |
			  PROC_CMD_FIBER_PORT(vsc8531->addr) |
			  PROC_CMD_FIBER_DISABLE |
			  PROC_CMD_READ_MOD_WRITE_PORT |
			  PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_100BASE_FX);
	if (ret)
		return ret;

	/* Disable SerDes for 1000Base-X */
	ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF |
			  PROC_CMD_FIBER_PORT(vsc8531->addr) |
			  PROC_CMD_FIBER_DISABLE |
			  PROC_CMD_READ_MOD_WRITE_PORT |
			  PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_1000BASE_X);
	if (ret)
		return ret;

	return vsc85xx_sd6g_config_v2(phydev);
}

static int vsc8574_config_host_serdes(struct phy_device *phydev)
{
	struct vsc8531_private *vsc8531 = phydev->priv;
	int ret;
	u16 val;

	ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
			     MSCC_PHY_PAGE_EXTENDED_GPIO);
	if (ret)
		return ret;

	val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK);
	val &= ~MAC_CFG_MASK;
	if (phydev->interface == PHY_INTERFACE_MODE_QSGMII) {
		val |= MAC_CFG_QSGMII;
	} else if (phydev->interface == PHY_INTERFACE_MODE_SGMII) {
		val |= MAC_CFG_SGMII;
	} else if (phy_interface_is_rgmii(phydev)) {
		val |= MAC_CFG_RGMII;
	} else {
		ret = -EINVAL;
		return ret;
	}

	ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val);
	if (ret)
		return ret;

	ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
			     MSCC_PHY_PAGE_STANDARD);
	if (ret)
		return ret;

	if (!phy_interface_is_rgmii(phydev)) {
		val = PROC_CMD_MCB_ACCESS_MAC_CONF | PROC_CMD_RST_CONF_PORT |
			PROC_CMD_READ_MOD_WRITE_PORT;
		if (phydev->interface == PHY_INTERFACE_MODE_QSGMII)
			val |= PROC_CMD_QSGMII_MAC;
		else
			val |= PROC_CMD_SGMII_MAC;

		ret = vsc8584_cmd(phydev, val);
		if (ret)
			return ret;

		usleep_range(10000, 20000);
	}

	/* Disable SerDes for 100Base-FX */
	ret = vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF |
			  PROC_CMD_FIBER_PORT(vsc8531->addr) |
			  PROC_CMD_FIBER_DISABLE |
			  PROC_CMD_READ_MOD_WRITE_PORT |
			  PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_100BASE_FX);
	if (ret)
		return ret;

	/* Disable SerDes for 1000Base-X */
	return vsc8584_cmd(phydev, PROC_CMD_FIBER_MEDIA_CONF |
			   PROC_CMD_FIBER_PORT(vsc8531->addr) |
			   PROC_CMD_FIBER_DISABLE |
			   PROC_CMD_READ_MOD_WRITE_PORT |
			   PROC_CMD_RST_CONF_PORT | PROC_CMD_FIBER_1000BASE_X);
}

static int vsc8584_config_init(struct phy_device *phydev)
{
	struct vsc8531_private *vsc8531 = phydev->priv;
	int ret, i;
	u16 val;

	phydev->mdix_ctrl = ETH_TP_MDI_AUTO;

	phy_lock_mdio_bus(phydev);

	/* Some parts of the init sequence are identical for every PHY in the
	 * package. Some parts are modifying the GPIO register bank which is a
	 * set of registers that are affecting all PHYs, a few resetting the
	 * microprocessor common to all PHYs. The CRC check responsible of the
	 * checking the firmware within the 8051 microprocessor can only be
	 * accessed via the PHY whose internal address in the package is 0.
	 * All PHYs' interrupts mask register has to be zeroed before enabling
	 * any PHY's interrupt in this register.
	 * For all these reasons, we need to do the init sequence once and only
	 * once whatever is the first PHY in the package that is initialized and
	 * do the correct init sequence for all PHYs that are package-critical
	 * in this pre-init function.
	 */
	if (phy_package_init_once(phydev)) {
		switch (phydev->phy_id & phydev->drv->phy_id_mask) {
		case PHY_ID_VSC8504:
		case PHY_ID_VSC8552:
		case PHY_ID_VSC8572:
		case PHY_ID_VSC8574:
			ret = vsc8574_config_pre_init(phydev);
			if (ret)
				goto err;
			ret = vsc8574_config_host_serdes(phydev);
			if (ret)
				goto err;
			break;
		case PHY_ID_VSC856X:
		case PHY_ID_VSC8575:
		case PHY_ID_VSC8582:
		case PHY_ID_VSC8584:
			ret = vsc8584_config_pre_init(phydev);
			if (ret)
				goto err;
			ret = vsc8584_config_host_serdes(phydev);
			if (ret)
				goto err;
			vsc85xx_coma_mode_release(phydev);
			break;
		default:
			ret = -EINVAL;
			break;
		}

		if (ret)
			goto err;
	}

	phy_unlock_mdio_bus(phydev);

	ret = vsc8584_macsec_init(phydev);
	if (ret)
		return ret;

	ret = vsc8584_ptp_init(phydev);
	if (ret)
		return ret;

	val = phy_read(phydev, MSCC_PHY_EXT_PHY_CNTL_1);
	val &= ~(MEDIA_OP_MODE_MASK | VSC8584_MAC_IF_SELECTION_MASK);
	val |= (MEDIA_OP_MODE_COPPER << MEDIA_OP_MODE_POS) |
	       (VSC8584_MAC_IF_SELECTION_SGMII << VSC8584_MAC_IF_SELECTION_POS);
	ret = phy_write(phydev, MSCC_PHY_EXT_PHY_CNTL_1, val);
	if (ret)
		return ret;

	ret = vsc85xx_update_rgmii_cntl(phydev, VSC8572_RGMII_CNTL,
					VSC8572_RGMII_RX_DELAY_MASK,
					VSC8572_RGMII_TX_DELAY_MASK);
	if (ret)
		return ret;

	ret = genphy_soft_reset(phydev);
	if (ret)
		return ret;

	for (i = 0; i < vsc8531->nleds; i++) {
		ret = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]);
		if (ret)
			return ret;
	}

	return 0;

err:
	phy_unlock_mdio_bus(phydev);
	return ret;
}

static irqreturn_t vsc8584_handle_interrupt(struct phy_device *phydev)
{
	irqreturn_t ret;
	int irq_status;

	irq_status = phy_read(phydev, MII_VSC85XX_INT_STATUS);
	if (irq_status < 0)
		return IRQ_NONE;

	/* Timestamping IRQ does not set a bit in the global INT_STATUS, so
	 * irq_status would be 0.
	 */
	ret = vsc8584_handle_ts_interrupt(phydev);
	if (!(irq_status & MII_VSC85XX_INT_MASK_MASK))
		return ret;

	if (irq_status & MII_VSC85XX_INT_MASK_EXT)
		vsc8584_handle_macsec_interrupt(phydev);

	if (irq_status & MII_VSC85XX_INT_MASK_LINK_CHG)
		phy_trigger_machine(phydev);

	return IRQ_HANDLED;
}

static int vsc85xx_config_init(struct phy_device *phydev)
{
	int rc, i, phy_id;
	struct vsc8531_private *vsc8531 = phydev->priv;

	rc = vsc85xx_default_config(phydev);
	if (rc)
		return rc;

	rc = vsc85xx_mac_if_set(phydev, phydev->interface);
	if (rc)
		return rc;

	rc = vsc85xx_edge_rate_cntl_set(phydev, vsc8531->rate_magic);
	if (rc)
		return rc;

	phy_id = phydev->drv->phy_id & phydev->drv->phy_id_mask;
	if (PHY_ID_VSC8531 == phy_id || PHY_ID_VSC8541 == phy_id ||
	    PHY_ID_VSC8530 == phy_id || PHY_ID_VSC8540 == phy_id) {
		rc = vsc8531_pre_init_seq_set(phydev);
		if (rc)
			return rc;
	}

	rc = vsc85xx_eee_init_seq_set(phydev);
	if (rc)
		return rc;

	for (i = 0; i < vsc8531->nleds; i++) {
		rc = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]);
		if (rc)
			return rc;
	}

	return 0;
}

static int __phy_write_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb,
			       u32 op)
{
	unsigned long deadline;
	u32 val;
	int ret;

	ret = vsc85xx_csr_write(phydev, PHY_MCB_TARGET, reg,
				op | (1 << mcb));
	if (ret)
		return -EINVAL;

	deadline = jiffies + msecs_to_jiffies(PROC_CMD_NCOMPLETED_TIMEOUT_MS);
	do {
		usleep_range(500, 1000);
		val = vsc85xx_csr_read(phydev, PHY_MCB_TARGET, reg);

		if (val == 0xffffffff)
			return -EIO;

	} while (time_before(jiffies, deadline) && (val & op));

	if (val & op)
		return -ETIMEDOUT;

	return 0;
}

/* Trigger a read to the specified MCB */
int phy_update_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb)
{
	return __phy_write_mcb_s6g(phydev, reg, mcb, PHY_MCB_S6G_READ);
}

/* Trigger a write to the specified MCB */
int phy_commit_mcb_s6g(struct phy_device *phydev, u32 reg, u8 mcb)
{
	return __phy_write_mcb_s6g(phydev, reg, mcb, PHY_MCB_S6G_WRITE);
}

static int vsc8514_config_host_serdes(struct phy_device *phydev)
{
	int ret;
	u16 val;

	ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
			     MSCC_PHY_PAGE_EXTENDED_GPIO);
	if (ret)
		return ret;

	val = phy_base_read(phydev, MSCC_PHY_MAC_CFG_FASTLINK);
	val &= ~MAC_CFG_MASK;
	val |= MAC_CFG_QSGMII;
	ret = phy_base_write(phydev, MSCC_PHY_MAC_CFG_FASTLINK, val);
	if (ret)
		return ret;

	ret = phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
			     MSCC_PHY_PAGE_STANDARD);
	if (ret)
		return ret;

	ret = vsc8584_cmd(phydev, PROC_CMD_NOP);
	if (ret)
		return ret;

	ret = vsc8584_cmd(phydev,
			  PROC_CMD_MCB_ACCESS_MAC_CONF |
			  PROC_CMD_RST_CONF_PORT |
			  PROC_CMD_READ_MOD_WRITE_PORT | PROC_CMD_QSGMII_MAC);
	if (ret) {
		dev_err(&phydev->mdio.dev, "%s: QSGMII error: %d\n",
			__func__, ret);
		return ret;
	}

	/* Apply 6G SerDes FOJI Algorithm
	 *  Initial condition requirement:
	 *  1. hold 8051 in reset
	 *  2. disable patch vector 0, in order to allow IB cal poll during FoJi
	 *  3. deassert 8051 reset after change patch vector status
	 *  4. proceed with FoJi (vsc85xx_sd6g_config_v2)
	 */
	vsc8584_micro_assert_reset(phydev);
	val = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
	/* clear bit 8, to disable patch vector 0 */
	val &= ~PATCH_VEC_ZERO_EN;
	ret = phy_base_write(phydev, MSCC_INT_MEM_CNTL, val);
	/* Enable 8051 clock, don't set patch present, disable PRAM clock override */
	vsc8584_micro_deassert_reset(phydev, false);

	return vsc85xx_sd6g_config_v2(phydev);
}

static int vsc8514_config_pre_init(struct phy_device *phydev)
{
	/* These are the settings to override the silicon default
	 * values to handle hardware performance of PHY. They
	 * are set at Power-On state and remain until PHY Reset.
	 */
	static const struct reg_val pre_init1[] = {
		{0x0f90, 0x00688980},
		{0x0786, 0x00000003},
		{0x07fa, 0x0050100f},
		{0x0f82, 0x0012b002},
		{0x1686, 0x00000004},
		{0x168c, 0x00d2c46f},
		{0x17a2, 0x00000620},
		{0x16a0, 0x00eeffdd},
		{0x16a6, 0x00071448},
		{0x16a4, 0x0013132f},
		{0x16a8, 0x00000000},
		{0x0ffc, 0x00c0a028},
		{0x0fe8, 0x0091b06c},
		{0x0fea, 0x00041600},
		{0x0f80, 0x00fffaff},
		{0x0fec, 0x00901809},
		{0x0ffe, 0x00b01007},
		{0x16b0, 0x00eeff00},
		{0x16b2, 0x00007000},
		{0x16b4, 0x00000814},
	};
	struct device *dev = &phydev->mdio.dev;
	unsigned int i;
	u16 reg;
	int ret;

	ret = vsc8584_pll5g_reset(phydev);
	if (ret < 0) {
		dev_err(dev, "failed LCPLL reset, ret: %d\n", ret);
		return ret;
	}

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	/* all writes below are broadcasted to all PHYs in the same package */
	reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
	reg |= SMI_BROADCAST_WR_EN;
	phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);

	reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
	reg |= BIT(15);
	phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TR);

	for (i = 0; i < ARRAY_SIZE(pre_init1); i++)
		vsc8584_csr_write(phydev, pre_init1[i].reg, pre_init1[i].val);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_TEST);

	reg = phy_base_read(phydev, MSCC_PHY_TEST_PAGE_8);
	reg &= ~BIT(15);
	phy_base_write(phydev, MSCC_PHY_TEST_PAGE_8, reg);

	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS, MSCC_PHY_PAGE_STANDARD);

	reg = phy_base_read(phydev, MSCC_PHY_EXT_CNTL_STATUS);
	reg &= ~SMI_BROADCAST_WR_EN;
	phy_base_write(phydev, MSCC_PHY_EXT_CNTL_STATUS, reg);

	/* Add pre-patching commands to:
	 * 1. enable 8051 clock, operate 8051 clock at 125 MHz
	 * instead of HW default 62.5MHz
	 * 2. write patch vector 0, to skip IB cal polling executed
	 * as part of the 0x80E0 ROM command
	 */
	vsc8584_micro_deassert_reset(phydev, false);

	vsc8584_micro_assert_reset(phydev);
	phy_base_write(phydev, MSCC_EXT_PAGE_ACCESS,
		       MSCC_PHY_PAGE_EXTENDED_GPIO);
	/* ROM address to trap, for patch vector 0 */
	reg = MSCC_ROM_TRAP_SERDES_6G_CFG;
	ret = phy_base_write(phydev, MSCC_TRAP_ROM_ADDR(1), reg);
	if (ret)
		goto err;
	/* RAM address to jump to, when patch vector 0 enabled */
	reg = MSCC_RAM_TRAP_SERDES_6G_CFG;
	ret = phy_base_write(phydev, MSCC_PATCH_RAM_ADDR(1), reg);
	if (ret)
		goto err;
	reg = phy_base_read(phydev, MSCC_INT_MEM_CNTL);
	reg |= PATCH_VEC_ZERO_EN; /* bit 8, enable patch vector 0 */
	ret = phy_base_write(phydev, MSCC_INT_MEM_CNTL, reg);
	if (ret)
		goto err;

	/* Enable 8051 clock, don't set patch present
	 * yet, disable PRAM clock override
	 */
	vsc8584_micro_deassert_reset(phydev, false);
	return ret;
 err:
	/* restore 8051 and bail w error */
	vsc8584_micro_deassert_reset(phydev, false);
	return ret;
}

static int vsc8514_config_init(struct phy_device *phydev)
{
	struct vsc8531_private *vsc8531 = phydev->priv;
	int ret, i;

	phydev->mdix_ctrl = ETH_TP_MDI_AUTO;

	phy_lock_mdio_bus(phydev);

	/* Some parts of the init sequence are identical for every PHY in the
	 * package. Some parts are modifying the GPIO register bank which is a
	 * set of registers that are affecting all PHYs, a few resetting the
	 * microprocessor common to all PHYs.
	 * All PHYs' interrupts mask register has to be zeroed before enabling
	 * any PHY's interrupt in this register.
	 * For all these reasons, we need to do the init sequence once and only
	 * once whatever is the first PHY in the package that is initialized and
	 * do the correct init sequence for all PHYs that are package-critical
	 * in this pre-init function.
	 */
	if (phy_package_init_once(phydev)) {
		ret = vsc8514_config_pre_init(phydev);
		if (ret)
			goto err;
		ret = vsc8514_config_host_serdes(phydev);
		if (ret)
			goto err;
		vsc85xx_coma_mode_release(phydev);
	}

	phy_unlock_mdio_bus(phydev);

	ret = phy_modify(phydev, MSCC_PHY_EXT_PHY_CNTL_1, MEDIA_OP_MODE_MASK,
			 MEDIA_OP_MODE_COPPER << MEDIA_OP_MODE_POS);

	if (ret)
		return ret;

	ret = genphy_soft_reset(phydev);

	if (ret)
		return ret;

	for (i = 0; i < vsc8531->nleds; i++) {
		ret = vsc85xx_led_cntl_set(phydev, i, vsc8531->leds_mode[i]);
		if (ret)
			return ret;
	}

	return ret;

err:
	phy_unlock_mdio_bus(phydev);
	return ret;
}

static int vsc85xx_ack_interrupt(struct phy_device *phydev)
{
	int rc = 0;

	if (phydev->interrupts == PHY_INTERRUPT_ENABLED)
		rc = phy_read(phydev, MII_VSC85XX_INT_STATUS);

	return (rc < 0) ? rc : 0;
}

static int vsc85xx_config_intr(struct phy_device *phydev)
{
	int rc;

	if (phydev->interrupts == PHY_INTERRUPT_ENABLED) {
		rc = vsc85xx_ack_interrupt(phydev);
		if (rc)
			return rc;

		vsc8584_config_macsec_intr(phydev);
		vsc8584_config_ts_intr(phydev);

		rc = phy_write(phydev, MII_VSC85XX_INT_MASK,
			       MII_VSC85XX_INT_MASK_MASK);
	} else {
		rc = phy_write(phydev, MII_VSC85XX_INT_MASK, 0);
		if (rc < 0)
			return rc;
		rc = phy_read(phydev, MII_VSC85XX_INT_STATUS);
		if (rc < 0)
			return rc;

		rc = vsc85xx_ack_interrupt(phydev);
	}

	return rc;
}

static irqreturn_t vsc85xx_handle_interrupt(struct phy_device *phydev)
{
	int irq_status;

	irq_status = phy_read(phydev, MII_VSC85XX_INT_STATUS);
	if (irq_status < 0) {
		phy_error(phydev);
		return IRQ_NONE;
	}

	if (!(irq_status & MII_VSC85XX_INT_MASK_MASK))
		return IRQ_NONE;

	phy_trigger_machine(phydev);

	return IRQ_HANDLED;
}

static int vsc85xx_config_aneg(struct phy_device *phydev)
{
	int rc;

	rc = vsc85xx_mdix_set(phydev, phydev->mdix_ctrl);
	if (rc < 0)
		return rc;

	return genphy_config_aneg(phydev);
}

static int vsc85xx_read_status(struct phy_device *phydev)
{
	int rc;

	rc = vsc85xx_mdix_get(phydev, &phydev->mdix);
	if (rc < 0)
		return rc;

	return genphy_read_status(phydev);
}

static unsigned int vsc85xx_inband_caps(struct phy_device *phydev,
					phy_interface_t interface)
{
	if (interface != PHY_INTERFACE_MODE_SGMII &&
	    interface != PHY_INTERFACE_MODE_QSGMII)
		return 0;

	return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE;
}

static int vsc85xx_config_inband(struct phy_device *phydev, unsigned int modes)
{
	u16 reg_val = 0;

	if (modes == LINK_INBAND_ENABLE)
		reg_val = MSCC_PHY_SERDES_ANEG;

	return phy_modify_paged(phydev, MSCC_PHY_PAGE_EXTENDED_3,
				MSCC_PHY_SERDES_PCS_CTRL, MSCC_PHY_SERDES_ANEG,
				reg_val);
}

static int vsc85xx_probe_common(struct phy_device *phydev,
				const struct vsc85xx_probe_config *cfg,
				const u32 *default_led_mode)
{
	struct vsc8531_private *vsc8531;
	struct device_node *np;
	int ret;

	vsc8531 = devm_kzalloc(&phydev->mdio.dev, sizeof(*vsc8531), GFP_KERNEL);
	if (!vsc8531)
		return -ENOMEM;

	phydev->priv = vsc8531;

	/* Check rate magic if needed (only for non-package PHYs) */
	if (cfg->check_rate_magic) {
		ret = vsc85xx_edge_rate_magic_get(phydev);
		if (ret < 0)
			return ret;

		vsc8531->rate_magic = ret;
	}

	/* Set up package if needed */
	if (cfg->use_package) {
		vsc8584_get_base_addr(phydev);
		ret = devm_phy_package_join(&phydev->mdio.dev, phydev,
					    vsc8531->base_addr,
					    cfg->shared_size);
		if (ret)
			return ret;
	}

	/* Configure LED settings */
	vsc8531->nleds = cfg->nleds;
	vsc8531->supp_led_modes = cfg->supp_led_modes;

	/* Configure hardware stats */
	vsc8531->hw_stats = cfg->hw_stats;
	vsc8531->nstats = cfg->nstats;
	vsc8531->stats = devm_kcalloc(&phydev->mdio.dev, vsc8531->nstats,
				      sizeof(u64), GFP_KERNEL);
	if (!vsc8531->stats)
		return -ENOMEM;

	/* PTP setup for VSC8584 */
	if (cfg->has_ptp) {
		if (phy_package_probe_once(phydev)) {
			ret = vsc8584_ptp_probe_once(phydev);
			if (ret)
				return ret;
		}

		ret = vsc8584_ptp_probe(phydev);
		if (ret)
			return ret;
	}

	/*
	 * Check for LED configuration in device tree if available
	 * or fall back to default `vsc8531,led-x-mode` DT properties.
	 */
	np = of_get_child_by_name(phydev->mdio.dev.of_node, "leds");
	if (np) {
		of_node_put(np);

		/* Force to defaults */
		for (unsigned int i = 0; i < vsc8531->nleds; i++)
			vsc8531->leds_mode[i] = default_led_mode[i];

		return 0;
	}

	/* Parse LED modes from device tree */
	return vsc85xx_dt_led_modes_get(phydev, default_led_mode);
}

static int vsc85xx_led_brightness_set(struct phy_device *phydev,
				      u8 index, enum led_brightness value)
{
	struct vsc8531_private *vsc8531 = phydev->priv;

	if (index >= vsc8531->nleds)
		return -EINVAL;

	return vsc85xx_led_cntl_set(phydev, index, value == LED_OFF ?
				    VSC8531_FORCE_LED_OFF : VSC8531_FORCE_LED_ON);
}

static int vsc85xx_led_hw_is_supported(struct phy_device *phydev, u8 index,
				       unsigned long rules)
{
	static const unsigned long supported = BIT(TRIGGER_NETDEV_LINK_1000) |
					       BIT(TRIGGER_NETDEV_LINK_100) |
					       BIT(TRIGGER_NETDEV_LINK_10) |
					       BIT(TRIGGER_NETDEV_LINK) |
					       BIT(TRIGGER_NETDEV_RX) |
					       BIT(TRIGGER_NETDEV_TX);
	struct vsc8531_private *vsc8531 = phydev->priv;

	if (index >= vsc8531->nleds)
		return -EINVAL;

	if (rules & ~supported)
		return -EOPNOTSUPP;

	return 0;
}

static int vsc85xx_led_hw_control_get(struct phy_device *phydev, u8 index,
				      unsigned long *rules)
{
	struct vsc8531_private *vsc8531 = phydev->priv;
	u8 mode, behavior;
	int rc;

	if (index >= vsc8531->nleds)
		return -EINVAL;

	rc = phy_read(phydev, MSCC_PHY_LED_MODE_SEL);
	if (rc < 0)
		return rc;
	mode = (rc & LED_MODE_SEL_MASK(index)) >> LED_MODE_SEL_POS(index);

	rc = phy_read(phydev, MSCC_PHY_LED_BEHAVIOR);
	if (rc < 0)
		return rc;
	behavior = (rc & LED_COMBINE_DIS_MASK(index)) >> index;

	switch (mode) {
	case VSC8531_LINK_ACTIVITY:
	case VSC8531_ACTIVITY:
		*rules = BIT(TRIGGER_NETDEV_LINK);
		break;

	case VSC8531_LINK_1000_ACTIVITY:
		*rules = BIT(TRIGGER_NETDEV_LINK_1000) |
			 BIT(TRIGGER_NETDEV_LINK);
		break;

	case VSC8531_LINK_100_ACTIVITY:
		*rules = BIT(TRIGGER_NETDEV_LINK_100) |
			 BIT(TRIGGER_NETDEV_LINK);
		break;

	case VSC8531_LINK_10_ACTIVITY:
		*rules = BIT(TRIGGER_NETDEV_LINK_10) |
			 BIT(TRIGGER_NETDEV_LINK);
		break;

	case VSC8531_LINK_100_1000_ACTIVITY:
		*rules = BIT(TRIGGER_NETDEV_LINK_1000) |
			 BIT(TRIGGER_NETDEV_LINK_100) |
			 BIT(TRIGGER_NETDEV_LINK);
		break;

	case VSC8531_LINK_10_1000_ACTIVITY:
		*rules = BIT(TRIGGER_NETDEV_LINK_1000) |
			 BIT(TRIGGER_NETDEV_LINK_10) |
			 BIT(TRIGGER_NETDEV_LINK);
		break;

	case VSC8531_LINK_10_100_ACTIVITY:
		*rules = BIT(TRIGGER_NETDEV_LINK_100) |
			 BIT(TRIGGER_NETDEV_LINK_10) |
			 BIT(TRIGGER_NETDEV_LINK);
		break;

	default:
		*rules = 0;
		break;
	}

	if (!behavior && *rules)
		*rules |= BIT(TRIGGER_NETDEV_RX) | BIT(TRIGGER_NETDEV_TX);

	return 0;
}

static int vsc85xx_led_hw_control_set(struct phy_device *phydev, u8 index,
				      unsigned long rules)
{
	struct vsc8531_private *vsc8531 = phydev->priv;
	u8 mode = VSC8531_FORCE_LED_ON;
	bool combine_disable = false;
	bool has_rx, has_tx;
	int ret;

	if (index >= vsc8531->nleds)
		return -EINVAL;

	if (rules & BIT(TRIGGER_NETDEV_LINK))
		mode = VSC8531_LINK_ACTIVITY;

	if (rules & BIT(TRIGGER_NETDEV_LINK_10))
		mode = VSC8531_LINK_10_ACTIVITY;

	if (rules & BIT(TRIGGER_NETDEV_LINK_100))
		mode = VSC8531_LINK_100_ACTIVITY;

	if (rules & BIT(TRIGGER_NETDEV_LINK_1000))
		mode = VSC8531_LINK_1000_ACTIVITY;

	if (rules & BIT(TRIGGER_NETDEV_LINK_100) &&
	    rules & BIT(TRIGGER_NETDEV_LINK_1000))
		mode = VSC8531_LINK_100_1000_ACTIVITY;

	if (rules & BIT(TRIGGER_NETDEV_LINK_10) &&
	    rules & BIT(TRIGGER_NETDEV_LINK_1000))
		mode = VSC8531_LINK_10_1000_ACTIVITY;

	if (rules & BIT(TRIGGER_NETDEV_LINK_10) &&
	    rules & BIT(TRIGGER_NETDEV_LINK_100))
		mode = VSC8531_LINK_10_100_ACTIVITY;

	/*
	 * The VSC85xx PHYs provides an option to control LED behavior. By
	 * default, the LEDx combine function is enabled, meaning the LED
	 * will be on when there is link/activity or duplex/collision. If
	 * the combine function is disabled, the LED will be on only for
	 * link or duplex.
	 *
	 * To control this behavior, we check the selected rules. If both
	 * RX and TX activity are not selected, the LED combine function
	 * is disabled; otherwise, it remains enabled.
	 */
	has_rx = !!(rules & BIT(TRIGGER_NETDEV_RX));
	has_tx = !!(rules & BIT(TRIGGER_NETDEV_TX));
	if (!has_rx && !has_tx)
		combine_disable = true;

	ret = vsc85xx_led_combine_disable_set(phydev, index, combine_disable);
	if (ret < 0)
		return ret;

	return vsc85xx_led_cntl_set(phydev, index, mode);
}

static int vsc8514_probe(struct phy_device *phydev)
{
	static const struct vsc85xx_probe_config vsc8514_cfg = {
		.nleds = 4,
		.supp_led_modes = VSC85XX_SUPP_LED_MODES,
		.hw_stats = vsc85xx_hw_stats,
		.nstats = ARRAY_SIZE(vsc85xx_hw_stats),
		.use_package = true,
		.shared_size = 0,
		.has_ptp = false,
		.check_rate_magic = false,
	};

	return vsc85xx_probe_common(phydev, &vsc8514_cfg, vsc85xx_default_led_modes_4);
}

static int vsc8574_probe(struct phy_device *phydev)
{
	static const struct vsc85xx_probe_config vsc8574_cfg = {
		.nleds = 4,
		.supp_led_modes = VSC8584_SUPP_LED_MODES,
		.hw_stats = vsc8584_hw_stats,
		.nstats = ARRAY_SIZE(vsc8584_hw_stats),
		.use_package = true,
		.shared_size = 0,
		.has_ptp = false,
		.check_rate_magic = false,
	};

	return vsc85xx_probe_common(phydev, &vsc8574_cfg, vsc85xx_default_led_modes_4);
}

static int vsc8584_probe(struct phy_device *phydev)
{
	static const struct vsc85xx_probe_config vsc8584_cfg = {
		.nleds = 4,
		.supp_led_modes = VSC8584_SUPP_LED_MODES,
		.hw_stats = vsc8584_hw_stats,
		.nstats = ARRAY_SIZE(vsc8584_hw_stats),
		.use_package = true,
		.shared_size = sizeof(struct vsc85xx_shared_private),
		.has_ptp = true,
		.check_rate_magic = false,
	};

	return vsc85xx_probe_common(phydev, &vsc8584_cfg, vsc85xx_default_led_modes_4);
}

static int vsc85xx_probe(struct phy_device *phydev)
{
	static const struct vsc85xx_probe_config vsc85xx_cfg = {
		.nleds = 2,
		.supp_led_modes = VSC85XX_SUPP_LED_MODES,
		.hw_stats = vsc85xx_hw_stats,
		.nstats = ARRAY_SIZE(vsc85xx_hw_stats),
		.use_package = false,
		.has_ptp = false,
		.check_rate_magic = true,
	};

	return vsc85xx_probe_common(phydev, &vsc85xx_cfg, vsc85xx_default_led_modes_4);
}

static void vsc85xx_remove(struct phy_device *phydev)
{
	vsc8584_ptp_deinit(phydev);
}

/* Microsemi VSC85xx PHYs */
static struct phy_driver vsc85xx_driver[] = {
{
	.phy_id		= PHY_ID_VSC8501,
	.name		= "Microsemi GE VSC8501 SyncE",
	.phy_id_mask	= 0xfffffff0,
	/* PHY_BASIC_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init	= &vsc85xx_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = vsc85xx_handle_interrupt,
	.config_intr	= &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.probe		= &vsc85xx_probe,
	.set_wol	= &vsc85xx_wol_set,
	.get_wol	= &vsc85xx_wol_get,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	.phy_id		= PHY_ID_VSC8502,
	.name		= "Microsemi GE VSC8502 SyncE",
	.phy_id_mask	= 0xfffffff0,
	/* PHY_BASIC_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init	= &vsc85xx_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = vsc85xx_handle_interrupt,
	.config_intr	= &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.probe		= &vsc85xx_probe,
	.set_wol	= &vsc85xx_wol_set,
	.get_wol	= &vsc85xx_wol_get,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	.phy_id		= PHY_ID_VSC8504,
	.name		= "Microsemi GE VSC8504 SyncE",
	.phy_id_mask	= 0xfffffff0,
	/* PHY_GBIT_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init    = &vsc8584_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.aneg_done	= &genphy_aneg_done,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = vsc85xx_handle_interrupt,
	.config_intr    = &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.probe		= &vsc8574_probe,
	.set_wol	= &vsc85xx_wol_set,
	.get_wol	= &vsc85xx_wol_get,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.inband_caps    = vsc85xx_inband_caps,
	.config_inband  = vsc85xx_config_inband,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	.phy_id		= PHY_ID_VSC8514,
	.name		= "Microsemi GE VSC8514 SyncE",
	.phy_id_mask	= 0xfffffff0,
	.soft_reset	= &genphy_soft_reset,
	.config_init    = &vsc8514_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = vsc85xx_handle_interrupt,
	.config_intr    = &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.probe		= &vsc8514_probe,
	.set_wol	= &vsc85xx_wol_set,
	.get_wol	= &vsc85xx_wol_get,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page      = &vsc85xx_phy_read_page,
	.write_page     = &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.inband_caps    = vsc85xx_inband_caps,
	.config_inband  = vsc85xx_config_inband,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	.phy_id		= PHY_ID_VSC8530,
	.name		= "Microsemi FE VSC8530",
	.phy_id_mask	= 0xfffffff0,
	/* PHY_BASIC_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init	= &vsc85xx_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = vsc85xx_handle_interrupt,
	.config_intr	= &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.probe		= &vsc85xx_probe,
	.set_wol	= &vsc85xx_wol_set,
	.get_wol	= &vsc85xx_wol_get,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	.phy_id		= PHY_ID_VSC8531,
	.name		= "Microsemi VSC8531",
	.phy_id_mask    = 0xfffffff0,
	/* PHY_GBIT_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init    = &vsc85xx_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = vsc85xx_handle_interrupt,
	.config_intr    = &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.probe		= &vsc85xx_probe,
	.set_wol	= &vsc85xx_wol_set,
	.get_wol	= &vsc85xx_wol_get,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	.phy_id		= PHY_ID_VSC8540,
	.name		= "Microsemi FE VSC8540 SyncE",
	.phy_id_mask	= 0xfffffff0,
	/* PHY_BASIC_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init	= &vsc85xx_config_init,
	.config_aneg	= &vsc85xx_config_aneg,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = vsc85xx_handle_interrupt,
	.config_intr	= &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.probe		= &vsc85xx_probe,
	.set_wol	= &vsc85xx_wol_set,
	.get_wol	= &vsc85xx_wol_get,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	.phy_id		= PHY_ID_VSC8541,
	.name		= "Microsemi VSC8541 SyncE",
	.phy_id_mask    = 0xfffffff0,
	/* PHY_GBIT_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init    = &vsc85xx_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = vsc85xx_handle_interrupt,
	.config_intr    = &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.probe		= &vsc85xx_probe,
	.set_wol	= &vsc85xx_wol_set,
	.get_wol	= &vsc85xx_wol_get,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	.phy_id		= PHY_ID_VSC8552,
	.name		= "Microsemi GE VSC8552 SyncE",
	.phy_id_mask	= 0xfffffff0,
	/* PHY_GBIT_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init    = &vsc8584_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = vsc85xx_handle_interrupt,
	.config_intr    = &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.probe		= &vsc8574_probe,
	.set_wol	= &vsc85xx_wol_set,
	.get_wol	= &vsc85xx_wol_get,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.inband_caps    = vsc85xx_inband_caps,
	.config_inband  = vsc85xx_config_inband,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	PHY_ID_MATCH_EXACT(PHY_ID_VSC856X),
	.name		= "Microsemi GE VSC856X SyncE",
	/* PHY_GBIT_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init    = &vsc8584_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = vsc85xx_handle_interrupt,
	.config_intr    = &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.probe		= &vsc8584_probe,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.inband_caps    = vsc85xx_inband_caps,
	.config_inband  = vsc85xx_config_inband,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	.phy_id		= PHY_ID_VSC8572,
	.name		= "Microsemi GE VSC8572 SyncE",
	.phy_id_mask	= 0xfffffff0,
	/* PHY_GBIT_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init    = &vsc8584_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.aneg_done	= &genphy_aneg_done,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = &vsc8584_handle_interrupt,
	.config_intr    = &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.remove		= &vsc85xx_remove,
	.probe		= &vsc8584_probe,
	.set_wol	= &vsc85xx_wol_set,
	.get_wol	= &vsc85xx_wol_get,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.inband_caps    = vsc85xx_inband_caps,
	.config_inband  = vsc85xx_config_inband,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	.phy_id		= PHY_ID_VSC8574,
	.name		= "Microsemi GE VSC8574 SyncE",
	.phy_id_mask	= 0xfffffff0,
	/* PHY_GBIT_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init    = &vsc8584_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.aneg_done	= &genphy_aneg_done,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = vsc8584_handle_interrupt,
	.config_intr    = &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.remove		= &vsc85xx_remove,
	.probe		= &vsc8584_probe,
	.set_wol	= &vsc85xx_wol_set,
	.get_wol	= &vsc85xx_wol_get,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.inband_caps    = vsc85xx_inband_caps,
	.config_inband  = vsc85xx_config_inband,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	PHY_ID_MATCH_EXACT(PHY_ID_VSC8575),
	.name		= "Microsemi GE VSC8575 SyncE",
	/* PHY_GBIT_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init    = &vsc8584_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.aneg_done	= &genphy_aneg_done,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = &vsc8584_handle_interrupt,
	.config_intr    = &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.remove		= &vsc85xx_remove,
	.probe		= &vsc8584_probe,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.inband_caps    = vsc85xx_inband_caps,
	.config_inband  = vsc85xx_config_inband,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	PHY_ID_MATCH_EXACT(PHY_ID_VSC8582),
	.name		= "Microsemi GE VSC8582 SyncE",
	/* PHY_GBIT_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init    = &vsc8584_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.aneg_done	= &genphy_aneg_done,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = &vsc8584_handle_interrupt,
	.config_intr    = &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.remove		= &vsc85xx_remove,
	.probe		= &vsc8584_probe,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.inband_caps    = vsc85xx_inband_caps,
	.config_inband  = vsc85xx_config_inband,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
},
{
	PHY_ID_MATCH_EXACT(PHY_ID_VSC8584),
	.name		= "Microsemi GE VSC8584 SyncE",
	/* PHY_GBIT_FEATURES */
	.soft_reset	= &genphy_soft_reset,
	.config_init    = &vsc8584_config_init,
	.config_aneg    = &vsc85xx_config_aneg,
	.aneg_done	= &genphy_aneg_done,
	.read_status	= &vsc85xx_read_status,
	.handle_interrupt = &vsc8584_handle_interrupt,
	.config_intr    = &vsc85xx_config_intr,
	.suspend	= &genphy_suspend,
	.resume		= &genphy_resume,
	.remove		= &vsc85xx_remove,
	.probe		= &vsc8584_probe,
	.get_tunable	= &vsc85xx_get_tunable,
	.set_tunable	= &vsc85xx_set_tunable,
	.read_page	= &vsc85xx_phy_read_page,
	.write_page	= &vsc85xx_phy_write_page,
	.get_sset_count = &vsc85xx_get_sset_count,
	.get_strings    = &vsc85xx_get_strings,
	.get_stats      = &vsc85xx_get_stats,
	.link_change_notify = &vsc85xx_link_change_notify,
	.inband_caps    = vsc85xx_inband_caps,
	.config_inband  = vsc85xx_config_inband,
	.led_brightness_set = vsc85xx_led_brightness_set,
	.led_hw_is_supported = vsc85xx_led_hw_is_supported,
	.led_hw_control_get = vsc85xx_led_hw_control_get,
	.led_hw_control_set = vsc85xx_led_hw_control_set,
}

};

module_phy_driver(vsc85xx_driver);

static const struct mdio_device_id __maybe_unused vsc85xx_tbl[] = {
	{ PHY_ID_MATCH_VENDOR(PHY_VENDOR_MSCC) },
	{ }
};

MODULE_DEVICE_TABLE(mdio, vsc85xx_tbl);

MODULE_DESCRIPTION("Microsemi VSC85xx PHY driver");
MODULE_AUTHOR("Nagaraju Lakkaraju");
MODULE_LICENSE("Dual MIT/GPL");

MODULE_FIRMWARE(MSCC_VSC8584_REVB_INT8051_FW);
MODULE_FIRMWARE(MSCC_VSC8574_REVB_INT8051_FW);