#include <linux/stmmac.h>
#include <linux/bitops.h>
#include <linux/clk.h>
#include <linux/phy.h>
#include <linux/phy/phy.h>
#include <linux/of_net.h>
#include <linux/gpio.h>
#include <linux/module.h>
#include <linux/of_gpio.h>
#include <linux/of_device.h>
#include <linux/platform_device.h>
#include <linux/regulator/consumer.h>
#include <linux/delay.h>
#include <linux/mfd/syscon.h>
#include <linux/regmap.h>
#include <linux/pm_runtime.h>
#include <linux/soc/rockchip/rk_vendor_storage.h>
#include "stmmac_platform.h"
#include "dwmac-rk-tool.h"

#define MAX_ETH		2

struct rk_priv_data;
struct rk_gmac_ops {
	void (*set_to_rgmii)(struct rk_priv_data *bsp_priv,
			     int tx_delay, int rx_delay);
	void (*set_to_rmii)(struct rk_priv_data *bsp_priv);
	void (*set_to_sgmii)(struct rk_priv_data *bsp_priv);
	void (*set_to_qsgmii)(struct rk_priv_data *bsp_priv);
	void (*set_rgmii_speed)(struct rk_priv_data *bsp_priv, int speed);
	void (*set_rmii_speed)(struct rk_priv_data *bsp_priv, int speed);
	void (*set_sgmii_speed)(struct rk_priv_data *bsp_priv, int speed);
	void (*integrated_phy_powerup)(struct rk_priv_data *bsp_priv);
};

struct rk_priv_data {
	struct platform_device *pdev;
	int phy_iface;
	int bus_id;
	struct regulator *regulator;
	bool suspended;
	const struct rk_gmac_ops *ops;

	bool clk_enabled;
	bool clock_input;
	bool integrated_phy;

	struct clk *clk_mac;
	struct clk *gmac_clkin;
	struct clk *mac_clk_rx;
	struct clk *mac_clk_tx;
	struct clk *clk_mac_ref;
	struct clk *clk_mac_refout;
	struct clk *clk_mac_speed;
	struct clk *aclk_mac;
	struct clk *pclk_mac;
	struct clk *clk_phy;
	struct clk *pclk_xpcs;

	struct reset_control *phy_reset;

	int tx_delay;
	int rx_delay;

	struct regmap *grf;
	struct regmap *xpcs;
};


#define HIWORD_UPDATE(val, mask, shift) \
		((val) << (shift) | (mask) << ((shift) + 16))

#define GRF_BIT(nr)	(BIT(nr) | BIT(nr+16))
#define GRF_CLR_BIT(nr)	(BIT(nr+16))

#define DELAY_ENABLE(soc, tx, rx) \
	((((tx) >= 0) ? soc##_GMAC_TXCLK_DLY_ENABLE : soc##_GMAC_TXCLK_DLY_DISABLE) | \
	 (((rx) >= 0) ? soc##_GMAC_RXCLK_DLY_ENABLE : soc##_GMAC_RXCLK_DLY_DISABLE))

#define DELAY_VALUE(soc, tx, rx) \
	((((tx) >= 0) ? soc##_GMAC_CLK_TX_DL_CFG(tx) : 0) | \
	 (((rx) >= 0) ? soc##_GMAC_CLK_RX_DL_CFG(rx) : 0))


#define RK3568_GRF_GMAC0_CON0		0X0380
#define RK3568_GRF_GMAC0_CON1		0X0384
#define RK3568_GRF_GMAC1_CON0		0X0388
#define RK3568_GRF_GMAC1_CON1		0X038c

/* RK3568_GRF_GMAC0_CON1 && RK3568_GRF_GMAC1_CON1 */
#define RK3568_GMAC_GMII_MODE			GRF_BIT(7)
#define RK3568_GMAC_PHY_INTF_SEL_RGMII	\
		(GRF_BIT(4) | GRF_CLR_BIT(5) | GRF_CLR_BIT(6))
#define RK3568_GMAC_PHY_INTF_SEL_RMII	\
		(GRF_CLR_BIT(4) | GRF_CLR_BIT(5) | GRF_BIT(6))
#define RK3568_GMAC_FLOW_CTRL			GRF_BIT(3)
#define RK3568_GMAC_FLOW_CTRL_CLR		GRF_CLR_BIT(3)
#define RK3568_GMAC_RXCLK_DLY_ENABLE		GRF_BIT(1)
#define RK3568_GMAC_RXCLK_DLY_DISABLE		GRF_CLR_BIT(1)
#define RK3568_GMAC_TXCLK_DLY_ENABLE		GRF_BIT(0)
#define RK3568_GMAC_TXCLK_DLY_DISABLE		GRF_CLR_BIT(0)

/* RK3568_GRF_GMAC0_CON0 && RK3568_GRF_GMAC1_CON0 */
#define RK3568_GMAC_CLK_RX_DL_CFG(val)	HIWORD_UPDATE(val, 0x7F, 8)
#define RK3568_GMAC_CLK_TX_DL_CFG(val)	HIWORD_UPDATE(val, 0x7F, 0)

#define RK3568_PIPE_GRF_XPCS_CON0	0X0040

#define RK3568_PIPE_GRF_XPCS_QGMII_MAC_SEL	GRF_BIT(0)
#define RK3568_PIPE_GRF_XPCS_SGMII_MAC_SEL	GRF_BIT(1)
#define RK3568_PIPE_GRF_XPCS_PHY_READY		GRF_BIT(2)

static void rk3568_set_to_rgmii(struct rk_priv_data *bsp_priv,
				int tx_delay, int rx_delay)
{
	struct device *dev = &bsp_priv->pdev->dev;
	u32 offset_con0, offset_con1;

	if (IS_ERR(bsp_priv->grf)) {
		dev_err(dev, "Missing rockchip,grf property\n");
		return;
	}

	offset_con0 = (bsp_priv->bus_id == 1) ? RK3568_GRF_GMAC1_CON0 :
						RK3568_GRF_GMAC0_CON0;
	offset_con1 = (bsp_priv->bus_id == 1) ? RK3568_GRF_GMAC1_CON1 :
						RK3568_GRF_GMAC0_CON1;

	regmap_write(bsp_priv->grf, offset_con1,
		     RK3568_GMAC_PHY_INTF_SEL_RGMII |
		     DELAY_ENABLE(RK3568, tx_delay, rx_delay));

	regmap_write(bsp_priv->grf, offset_con0,
		     DELAY_VALUE(RK3568, tx_delay, rx_delay));
}

static void rk3568_set_gmac_speed(struct rk_priv_data *bsp_priv, int speed)
{
	struct device *dev = &bsp_priv->pdev->dev;
	unsigned long rate;
	int ret;

	switch (speed) {
	case 10:
		rate = 2500000;
		break;
	case 100:
		rate = 25000000;
		break;
	case 1000:
		rate = 125000000;
		break;
	default:
		dev_err(dev, "unknown speed value for GMAC speed=%d", speed);
		return;
	}

	ret = clk_set_rate(bsp_priv->clk_mac_speed, rate);
	if (ret)
		dev_err(dev, "%s: set clk_mac_speed rate %ld failed %d\n",
			__func__, rate, ret);
}

static const struct rk_gmac_ops rk3568_ops = {
	.set_to_rgmii = rk3568_set_to_rgmii,
	.set_rgmii_speed = rk3568_set_gmac_speed,
};

#define RK_GRF_MACPHY_CON0		0xb00
#define RK_GRF_MACPHY_CON1		0xb04
#define RK_GRF_MACPHY_CON2		0xb08
#define RK_GRF_MACPHY_CON3		0xb0c

#define RK_MACPHY_ENABLE		GRF_BIT(0)
#define RK_MACPHY_DISABLE		GRF_CLR_BIT(0)
#define RK_MACPHY_CFG_CLK_50M		GRF_BIT(14)
#define RK_GMAC2PHY_RMII_MODE		(GRF_BIT(6) | GRF_CLR_BIT(7))
#define RK_GRF_CON2_MACPHY_ID		HIWORD_UPDATE(0x1234, 0xffff, 0)
#define RK_GRF_CON3_MACPHY_ID		HIWORD_UPDATE(0x35, 0x3f, 0)

static void rk_gmac_integrated_phy_powerup(struct rk_priv_data *priv)
{
	if (priv->ops->integrated_phy_powerup)
		priv->ops->integrated_phy_powerup(priv);

	regmap_write(priv->grf, RK_GRF_MACPHY_CON0, RK_MACPHY_CFG_CLK_50M);
	regmap_write(priv->grf, RK_GRF_MACPHY_CON0, RK_GMAC2PHY_RMII_MODE);

	regmap_write(priv->grf, RK_GRF_MACPHY_CON2, RK_GRF_CON2_MACPHY_ID);
	regmap_write(priv->grf, RK_GRF_MACPHY_CON3, RK_GRF_CON3_MACPHY_ID);

	if (priv->phy_reset) {
		/* PHY needs to be disabled before trying to reset it */
		regmap_write(priv->grf, RK_GRF_MACPHY_CON0, RK_MACPHY_DISABLE);
		if (priv->phy_reset)
			reset_control_assert(priv->phy_reset);
		usleep_range(10, 20);
		if (priv->phy_reset)
			reset_control_deassert(priv->phy_reset);
		usleep_range(10, 20);
		regmap_write(priv->grf, RK_GRF_MACPHY_CON0, RK_MACPHY_ENABLE);
		msleep(30);
	}
}

static void rk_gmac_integrated_phy_powerdown(struct rk_priv_data *priv)
{
	regmap_write(priv->grf, RK_GRF_MACPHY_CON0, RK_MACPHY_DISABLE);
	if (priv->phy_reset)
		reset_control_assert(priv->phy_reset);
}

static int rk_gmac_clk_init(struct plat_stmmacenet_data *plat)
{
	struct rk_priv_data *bsp_priv = plat->bsp_priv;
	struct device *dev = &bsp_priv->pdev->dev;
	int ret;

	bsp_priv->clk_enabled = false;

	bsp_priv->mac_clk_rx = devm_clk_get(dev, "mac_clk_rx");
	if (IS_ERR(bsp_priv->mac_clk_rx))
		dev_err(dev, "cannot get clock %s\n",
			"mac_clk_rx");

	bsp_priv->mac_clk_tx = devm_clk_get(dev, "mac_clk_tx");
	if (IS_ERR(bsp_priv->mac_clk_tx))
		dev_err(dev, "cannot get clock %s\n",
			"mac_clk_tx");

	bsp_priv->aclk_mac = devm_clk_get(dev, "aclk_mac");
	if (IS_ERR(bsp_priv->aclk_mac))
		dev_err(dev, "cannot get clock %s\n",
			"aclk_mac");

	bsp_priv->pclk_mac = devm_clk_get(dev, "pclk_mac");
	if (IS_ERR(bsp_priv->pclk_mac))
		dev_err(dev, "cannot get clock %s\n",
			"pclk_mac");

	bsp_priv->clk_mac = devm_clk_get(dev, "stmmaceth");
	if (IS_ERR(bsp_priv->clk_mac))
		dev_err(dev, "cannot get clock %s\n",
			"stmmaceth");

	bsp_priv->clk_mac_speed = devm_clk_get(dev, "clk_mac_speed");
	if (IS_ERR(bsp_priv->clk_mac_speed))
		dev_err(dev, "cannot get clock %s\n", "clk_mac_speed");

	if (bsp_priv->clock_input) {
		dev_info(dev, "clock input from PHY\n");
	}

	if (plat->phy_node) {
		bsp_priv->clk_phy = of_clk_get(plat->phy_node, 0);
		/* If it is not integrated_phy, clk_phy is optional */
		if (bsp_priv->integrated_phy) {
			if (IS_ERR(bsp_priv->clk_phy)) {
				ret = PTR_ERR(bsp_priv->clk_phy);
				dev_err(dev, "Cannot get PHY clock: %d\n", ret);
				return -EINVAL;
			}
			clk_set_rate(bsp_priv->clk_phy, 50000000);
		}
	}

	return 0;
}

static int gmac_clk_enable(struct rk_priv_data *bsp_priv, bool enable)
{
	int phy_iface = bsp_priv->phy_iface;

	if (enable) {
		if (!bsp_priv->clk_enabled) {
			if (!IS_ERR(bsp_priv->clk_phy))
				clk_prepare_enable(bsp_priv->clk_phy);

			if (!IS_ERR(bsp_priv->aclk_mac))
				clk_prepare_enable(bsp_priv->aclk_mac);

			if (!IS_ERR(bsp_priv->pclk_mac))
				clk_prepare_enable(bsp_priv->pclk_mac);

			if (!IS_ERR(bsp_priv->mac_clk_tx))
				clk_prepare_enable(bsp_priv->mac_clk_tx);

			if (!IS_ERR(bsp_priv->clk_mac_speed))
				clk_prepare_enable(bsp_priv->clk_mac_speed);

			if (!IS_ERR(bsp_priv->pclk_xpcs))
				clk_prepare_enable(bsp_priv->pclk_xpcs);

			/**
			 * if (!IS_ERR(bsp_priv->clk_mac))
			 *	clk_prepare_enable(bsp_priv->clk_mac);
			 */
			mdelay(5);
			bsp_priv->clk_enabled = true;
		}
	} else {
		if (bsp_priv->clk_enabled) {
			clk_disable_unprepare(bsp_priv->clk_phy);

			clk_disable_unprepare(bsp_priv->aclk_mac);

			clk_disable_unprepare(bsp_priv->pclk_mac);

			clk_disable_unprepare(bsp_priv->mac_clk_tx);

			clk_disable_unprepare(bsp_priv->clk_mac_speed);

			clk_disable_unprepare(bsp_priv->pclk_xpcs);

			/**
			 * if (!IS_ERR(bsp_priv->clk_mac))
			 *	clk_disable_unprepare(bsp_priv->clk_mac);
			 */
			bsp_priv->clk_enabled = false;
		}
	}

	return 0;
}

static int rk_gmac_phy_power_on(struct rk_priv_data *bsp_priv, bool enable)
{
	struct regulator *ldo = bsp_priv->regulator;
	int ret;
	struct device *dev = &bsp_priv->pdev->dev;

	if (!ldo)
		return 0;

	if (enable) {
		ret = regulator_enable(ldo);
		if (ret)
			dev_err(dev, "fail to enable phy-supply\n");
	} else {
		ret = regulator_disable(ldo);
		if (ret)
			dev_err(dev, "fail to disable phy-supply\n");
	}

	return 0;
}

static struct rk_priv_data *rk_gmac_setup(struct platform_device *pdev,
					  struct plat_stmmacenet_data *plat,
					  const struct rk_gmac_ops *ops)
{
	struct rk_priv_data *bsp_priv;
	struct device *dev = &pdev->dev;
	int ret;
	const char *strings = NULL;
	int value;

	bsp_priv = devm_kzalloc(dev, sizeof(*bsp_priv), GFP_KERNEL);
	if (!bsp_priv)
		return ERR_PTR(-ENOMEM);

	bsp_priv->phy_iface = of_get_phy_mode(dev->of_node);
	bsp_priv->ops = ops;
	bsp_priv->bus_id = plat->bus_id;

	bsp_priv->regulator = devm_regulator_get_optional(dev, "phy");
	if (IS_ERR(bsp_priv->regulator)) {
		if (PTR_ERR(bsp_priv->regulator) == -EPROBE_DEFER) {
			dev_err(dev, "phy regulator is not available yet, deferred probing\n");
			return ERR_PTR(-EPROBE_DEFER);
		}
		dev_err(dev, "no regulator found\n");
		bsp_priv->regulator = NULL;
	}

	ret = of_property_read_string(dev->of_node, "clock_in_out", &strings);
	if (ret) {
		dev_err(dev, "Can not read property: clock_in_out.\n");
		bsp_priv->clock_input = true;
	} else {
		dev_info(dev, "clock input or output? (%s).\n",
			 strings);
		if (!strcmp(strings, "input"))
			bsp_priv->clock_input = true;
		else
			bsp_priv->clock_input = false;
	}

	ret = of_property_read_u32(dev->of_node, "tx_delay", &value);
	if (ret) {
		bsp_priv->tx_delay = -1;
		dev_err(dev, "Can not read property: tx_delay.");
		dev_err(dev, "set tx_delay to 0x%x\n",
			bsp_priv->tx_delay);
	} else {
		dev_info(dev, "TX delay(0x%x).\n", value);
		bsp_priv->tx_delay = value;
	}

	ret = of_property_read_u32(dev->of_node, "rx_delay", &value);
	if (ret) {
		bsp_priv->rx_delay = -1;
		dev_err(dev, "Can not read property: rx_delay.");
		dev_err(dev, "set rx_delay to 0x%x\n",
			bsp_priv->rx_delay);
	} else {
		dev_info(dev, "RX delay(0x%x).\n", value);
		bsp_priv->rx_delay = value;
	}

	bsp_priv->grf = syscon_regmap_lookup_by_phandle(dev->of_node,
							"rockchip,grf");
	bsp_priv->xpcs = syscon_regmap_lookup_by_phandle(dev->of_node,
							 "rockchip,xpcs");
	if (!IS_ERR(bsp_priv->xpcs)) {
		struct phy *comphy;

		comphy = devm_of_phy_get(&pdev->dev, dev->of_node, NULL);
		if (IS_ERR(comphy))
			dev_err(dev, "devm_of_phy_get error\n");
		ret = phy_init(comphy);
		if (ret)
			dev_err(dev, "phy_init error\n");
	}

	if (plat->phy_node) {
		bsp_priv->integrated_phy = of_property_read_bool(plat->phy_node,
								 "phy-is-integrated");
		if (bsp_priv->integrated_phy) {
			bsp_priv->phy_reset = of_reset_control_get(plat->phy_node, NULL);
			if (IS_ERR(bsp_priv->phy_reset)) {
				dev_err(&pdev->dev, "No PHY reset control found.\n");
				bsp_priv->phy_reset = NULL;
			}
		}
	}
	dev_info(dev, "integrated PHY? (%s).\n",
		 bsp_priv->integrated_phy ? "yes" : "no");

	bsp_priv->pdev = pdev;

	return bsp_priv;
}

static int rk_gmac_powerup(struct rk_priv_data *bsp_priv)
{
	int ret;
	struct device *dev = &bsp_priv->pdev->dev;

	ret = gmac_clk_enable(bsp_priv, true);
	if (ret)
		return ret;

	/*rmii or rgmii*/
	switch (bsp_priv->phy_iface) {
	case PHY_INTERFACE_MODE_RGMII:
		dev_info(dev, "init for RGMII\n");
		if (bsp_priv->ops && bsp_priv->ops->set_to_rgmii)
			bsp_priv->ops->set_to_rgmii(bsp_priv, bsp_priv->tx_delay,
						    bsp_priv->rx_delay);
		break;
	default:
		dev_err(dev, "NO interface defined!\n");
	}

	ret = rk_gmac_phy_power_on(bsp_priv, true);
	if (ret) {
		gmac_clk_enable(bsp_priv, false);
		return ret;
	}

	pm_runtime_enable(dev);
	pm_runtime_get_sync(dev);

	if (bsp_priv->integrated_phy)
		rk_gmac_integrated_phy_powerup(bsp_priv);

	return 0;
}

static void rk_gmac_powerdown(struct rk_priv_data *gmac)
{
	struct device *dev = &gmac->pdev->dev;

	if (gmac->integrated_phy)
		rk_gmac_integrated_phy_powerdown(gmac);

	pm_runtime_put_sync(dev);
	pm_runtime_disable(dev);

	rk_gmac_phy_power_on(gmac, false);
	gmac_clk_enable(gmac, false);
}

static void rk_fix_speed(void *priv, unsigned int speed)
{
	struct rk_priv_data *bsp_priv = priv;
	struct device *dev = &bsp_priv->pdev->dev;

	switch (bsp_priv->phy_iface) {
	case PHY_INTERFACE_MODE_RGMII:
		if (bsp_priv->ops && bsp_priv->ops->set_rgmii_speed)
			bsp_priv->ops->set_rgmii_speed(bsp_priv, speed);
		break;
	default:
		dev_err(dev, "unsupported interface %d", bsp_priv->phy_iface);
	}
}

void dwmac_rk_set_rgmii_delayline(struct stmmac_priv *priv,
				  int tx_delay, int rx_delay)
{
	struct rk_priv_data *bsp_priv = priv->plat->bsp_priv;

	if (bsp_priv->ops->set_to_rgmii) {
		bsp_priv->ops->set_to_rgmii(bsp_priv, tx_delay, rx_delay);
		bsp_priv->tx_delay = tx_delay;
		bsp_priv->rx_delay = rx_delay;
	}
}
EXPORT_SYMBOL(dwmac_rk_set_rgmii_delayline);

void dwmac_rk_get_rgmii_delayline(struct stmmac_priv *priv,
				  int *tx_delay, int *rx_delay)
{
	struct rk_priv_data *bsp_priv = priv->plat->bsp_priv;

	if (!bsp_priv->ops->set_to_rgmii)
		return;

	*tx_delay = bsp_priv->tx_delay;
	*rx_delay = bsp_priv->rx_delay;
}
EXPORT_SYMBOL(dwmac_rk_get_rgmii_delayline);

int dwmac_rk_get_phy_interface(struct stmmac_priv *priv)
{
	struct rk_priv_data *bsp_priv = priv->plat->bsp_priv;

	return bsp_priv->phy_iface;
}
EXPORT_SYMBOL(dwmac_rk_get_phy_interface);

void __weak rk_devinfo_get_eth_mac(u8 *mac)
{
}

void rk_get_eth_addr(void *priv, unsigned char *addr)
{
	struct rk_priv_data *bsp_priv = priv;
	struct device *dev = &bsp_priv->pdev->dev;
	unsigned char ethaddr[ETH_ALEN * MAX_ETH] = {0};
	int ret, id = bsp_priv->bus_id;

	rk_devinfo_get_eth_mac(addr);
	if (is_valid_ether_addr(addr))
		goto out;

	if (id < 0 || id >= MAX_ETH) {
		dev_err(dev, "%s: Invalid ethernet bus id %d\n", __func__, id);
		return;
	}

	ret = rk_vendor_read(LAN_MAC_ID, ethaddr, ETH_ALEN * MAX_ETH);
	if (ret <= 0 ||
	    !is_valid_ether_addr(&ethaddr[id * ETH_ALEN])) {
		dev_err(dev, "%s: rk_vendor_read eth mac address failed (%d)\n",
			__func__, ret);
		random_ether_addr(&ethaddr[id * ETH_ALEN]);
		memcpy(addr, &ethaddr[id * ETH_ALEN], ETH_ALEN);
		dev_err(dev, "%s: generate random eth mac address: %pM\n", __func__, addr);

		ret = rk_vendor_write(LAN_MAC_ID, ethaddr, ETH_ALEN * MAX_ETH);
		if (ret != 0)
			dev_err(dev, "%s: rk_vendor_write eth mac address failed (%d)\n",
				__func__, ret);

		ret = rk_vendor_read(LAN_MAC_ID, ethaddr, ETH_ALEN * MAX_ETH);
		if (ret != ETH_ALEN * MAX_ETH)
			dev_err(dev, "%s: id: %d rk_vendor_read eth mac address failed (%d)\n",
				__func__, id, ret);
	} else {
		memcpy(addr, &ethaddr[id * ETH_ALEN], ETH_ALEN);
	}

out:
	dev_err(dev, "%s: mac address: %pM\n", __func__, addr);
}

static int rk_gmac_probe(struct platform_device *pdev)
{
	struct plat_stmmacenet_data *plat_dat;
	struct stmmac_resources stmmac_res;
	const struct rk_gmac_ops *data;
	int ret;

	data = of_device_get_match_data(&pdev->dev);
	if (!data) {
		dev_err(&pdev->dev, "no of match data provided\n");
		return -EINVAL;
	}

	ret = stmmac_get_platform_resources(pdev, &stmmac_res);
	if (ret)
		return ret;

	plat_dat = stmmac_probe_config_dt(pdev, &stmmac_res.mac);
	if (IS_ERR(plat_dat))
		return PTR_ERR(plat_dat);

	plat_dat->fix_mac_speed = rk_fix_speed;
	plat_dat->get_eth_addr = rk_get_eth_addr;

	plat_dat->bsp_priv = rk_gmac_setup(pdev, plat_dat, data);
	if (IS_ERR(plat_dat->bsp_priv)) {
		ret = PTR_ERR(plat_dat->bsp_priv);
		goto err_remove_config_dt;
	}

	ret = rk_gmac_clk_init(plat_dat);
	if (ret)
		goto err_remove_config_dt;

	ret = rk_gmac_powerup(plat_dat->bsp_priv);
	if (ret)
		goto err_remove_config_dt;

	ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
	if (ret)
		goto err_gmac_powerdown;

	ret = dwmac_rk_create_loopback_sysfs(&pdev->dev);
	if (ret)
		goto err_gmac_powerdown;

	return 0;

err_gmac_powerdown:
	rk_gmac_powerdown(plat_dat->bsp_priv);
err_remove_config_dt:
	stmmac_remove_config_dt(pdev, plat_dat);

	return ret;
}

static int rk_gmac_remove(struct platform_device *pdev)
{
	struct rk_priv_data *bsp_priv = get_stmmac_bsp_priv(&pdev->dev);
	int ret = stmmac_dvr_remove(&pdev->dev);

	rk_gmac_powerdown(bsp_priv);
	dwmac_rk_remove_loopback_sysfs(&pdev->dev);

	return ret;
}

#ifdef CONFIG_PM_SLEEP
static int rk_gmac_suspend(struct device *dev)
{
	struct rk_priv_data *bsp_priv = get_stmmac_bsp_priv(dev);
	int ret = stmmac_suspend(dev);

	/* Keep the PHY up if we use Wake-on-Lan. */
	if (!device_may_wakeup(dev)) {
		rk_gmac_powerdown(bsp_priv);
		bsp_priv->suspended = true;
	}

	return ret;
}

static int rk_gmac_resume(struct device *dev)
{
	struct rk_priv_data *bsp_priv = get_stmmac_bsp_priv(dev);

	/* The PHY was up for Wake-on-Lan. */
	if (bsp_priv->suspended) {
		rk_gmac_powerup(bsp_priv);
		bsp_priv->suspended = false;
	}

	return stmmac_resume(dev);
}
#endif /* CONFIG_PM_SLEEP */

static SIMPLE_DEV_PM_OPS(rk_gmac_pm_ops, rk_gmac_suspend, rk_gmac_resume);

static const struct of_device_id rk_gmac_dwmac_match[] = {
#ifdef CONFIG_CPU_RK3568
	{ .compatible = "rockchip,rk3568-gmac", .data = &rk3568_ops },
#endif
	{ }
};
MODULE_DEVICE_TABLE(of, rk_gmac_dwmac_match);

static struct platform_driver rk_gmac_dwmac_driver = {
	.probe  = rk_gmac_probe,
	.remove = rk_gmac_remove,
	.driver = {
		.name           = "rk_gmac-dwmac",
		.pm		= &rk_gmac_pm_ops,
		.of_match_table = rk_gmac_dwmac_match,
	},
};
module_platform_driver(rk_gmac_dwmac_driver);