Index: drivers/net/phy/en8801sc.c
===================================================================
--- /dev/null
+++ b/drivers/net/phy/en8801sc.c
@@ -0,0 +1,732 @@
+// SPDX-License-Identifier: GPL-2.0
+/* FILE NAME:  en8801sc.c
+ * PURPOSE:
+ *      EN8801SC phy driver for Linux
+ * NOTES:
+ *
+ */
+
+/* INCLUDE FILE DECLARATIONS
+ */
+
+#include <linux/kernel.h>
+#include <linux/string.h>
+#include <linux/errno.h>
+#include <linux/unistd.h>
+#include <linux/interrupt.h>
+#include <linux/init.h>
+#include <linux/delay.h>
+#include <linux/netdevice.h>
+#include <linux/etherdevice.h>
+#include <linux/skbuff.h>
+#include <linux/spinlock.h>
+#include <linux/mm.h>
+#include <linux/module.h>
+#include <linux/mii.h>
+#include <linux/ethtool.h>
+#include <linux/phy.h>
+#include <linux/delay.h>
+
+#include <linux/uaccess.h>
+#include <linux/version.h>
+
+#include "en8801sc.h"
+
+MODULE_DESCRIPTION("Airoha EN8801S PHY drivers for MediaTek SoC");
+MODULE_AUTHOR("Airoha");
+MODULE_LICENSE("GPL");
+
+#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0))
+#define phydev_mdio_bus(dev) ((dev)->bus)
+#else
+#define phydev_mdio_bus(dev) ((dev)->mdio.bus)
+#endif
+
+enum {
+    PHY_STATE_DONE = 0,
+    PHY_STATE_INIT = 1,
+    PHY_STATE_PROCESS = 2,
+    PHY_STATE_SS_FAIL = 3,
+    PHY_STATE_FAIL = 4
+};
+
+/*
+The following led_cfg example is for reference only.
+LED5 1000M/LINK/ACT   (GPIO5)  <-> BASE_T_LED0,
+LED6 10/100M/LINK/ACT (GPIO9)  <-> BASE_T_LED1,
+LED4 100M/LINK/ACT    (GPIO8)  <-> BASE_T_LED2,
+*/
+/* User-defined.B */
+#define AIR_LED_SUPPORT
+#ifdef AIR_LED_SUPPORT
+static const AIR_BASE_T_LED_CFG_T led_cfg[4] =
+{
+    /*
+     *    LED Enable,     GPIO,       LED Polarity,            LED ON,               LED Blink
+     */
+         {LED_ENABLE,       5,       AIR_ACTIVE_LOW,      BASE_T_LED0_ON_CFG,    BASE_T_LED0_BLK_CFG}, /* BASE-T LED0 */
+         {LED_ENABLE,       9,       AIR_ACTIVE_LOW,      BASE_T_LED1_ON_CFG,    BASE_T_LED1_BLK_CFG}, /* BASE-T LED1 */
+         {LED_ENABLE,       8,       AIR_ACTIVE_LOW,      BASE_T_LED2_ON_CFG,    BASE_T_LED2_BLK_CFG}, /* BASE-T LED2 */
+         {LED_DISABLE,      1,       AIR_ACTIVE_LOW,      BASE_T_LED3_ON_CFG,    BASE_T_LED3_BLK_CFG}  /* BASE-T LED3 */
+};
+static const u16 led_dur = UNIT_LED_BLINK_DURATION << AIR_LED_BLK_DUR_64M;
+#endif
+/* User-defined.E */
+
+/************************************************************************
+*                  F U N C T I O N S
+************************************************************************/
+static int airoha_cl45_write(struct mii_bus *bus, u32 port, u32 devad, u32 reg, u16 val)
+{
+    int ret = 0;
+    struct device *dev = &bus->dev;
+
+    ret = mdiobus_write(bus, port, MII_MMD_ACC_CTL_REG, devad);
+    AIR_RTN_ON_ERR_MSG(ret < 0, ret, "%s fail. (ret=%d)\n", __func__, ret);
+    ret = mdiobus_write(bus, port, MII_MMD_ADDR_DATA_REG, reg);
+    AIR_RTN_ON_ERR_MSG(ret < 0, ret, "%s fail. (ret=%d)\n", __func__, ret);
+    ret = mdiobus_write(bus, port, MII_MMD_ACC_CTL_REG, MMD_OP_MODE_DATA | devad);
+    AIR_RTN_ON_ERR_MSG(ret < 0, ret, "%s fail. (ret=%d)\n", __func__, ret);
+    ret = mdiobus_write(bus, port, MII_MMD_ADDR_DATA_REG, val);
+    AIR_RTN_ON_ERR_MSG(ret < 0, ret, "%s fail. (ret=%d)\n", __func__, ret);
+    return ret;
+}
+
+static int airoha_cl45_read(struct mii_bus *bus, u32 port, u32 devad, u32 reg, u16 *read_data)
+{
+    int ret = 0;
+    struct device *dev = &bus->dev;
+
+    ret = mdiobus_write(bus, port, MII_MMD_ACC_CTL_REG, devad);
+    AIR_RTN_ON_ERR_MSG(ret < 0, ret, "%s fail. (ret=%d)\n", __func__, ret);
+    ret = mdiobus_write(bus, port, MII_MMD_ADDR_DATA_REG, reg);
+    AIR_RTN_ON_ERR_MSG(ret < 0, ret, "%s fail. (ret=%d)\n", __func__, ret);
+    ret = mdiobus_write(bus, port, MII_MMD_ACC_CTL_REG, MMD_OP_MODE_DATA | devad);
+    AIR_RTN_ON_ERR_MSG(ret < 0, ret, "%s fail. (ret=%d)\n", __func__, ret);
+    *read_data = mdiobus_read(bus, port, MII_MMD_ADDR_DATA_REG);
+    return 0;
+}
+
+static unsigned int airoha_cl22_read(struct mii_bus *ebus, unsigned int phy_addr, unsigned int phy_register, unsigned int *read_data)
+{
+    *read_data = mdiobus_read(ebus, phy_addr, phy_register);
+    return 0;
+}
+
+static int airoha_cl22_write(struct mii_bus *ebus, unsigned int phy_addr, unsigned int phy_register, unsigned int write_data)
+{
+    int ret = 0;
+    struct device *dev = &ebus->dev;
+
+    ret = mdiobus_write(ebus, phy_addr, phy_register, write_data);
+    AIR_RTN_ON_ERR_MSG(ret < 0, ret, "%s fail. (ret=%d)\n", __func__, ret);
+    return ret;
+}
+
+static int airoha_pbus_write(struct mii_bus *ebus, unsigned long pbus_id, unsigned long pbus_address, unsigned long pbus_data)
+{
+    int ret = 0;
+
+    ret = airoha_cl22_write(ebus, pbus_id, 0x1F, (unsigned int)(pbus_address >> 6));
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl22_write(ebus, pbus_id, (unsigned int)((pbus_address >> 2) & 0xf), (unsigned int)(pbus_data & 0xFFFF));
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl22_write(ebus, pbus_id, 0x10, (unsigned int)(pbus_data >> 16));
+    AIR_RTN_ERR(ret);
+    return ret;
+}
+
+static unsigned long airoha_pbus_read(struct mii_bus *ebus, unsigned long pbus_id, unsigned long pbus_address)
+{
+    unsigned long pbus_data;
+    unsigned int pbus_data_low, pbus_data_high;
+    int ret = 0;
+    struct device *dev = &ebus->dev;
+    ret = airoha_cl22_write(ebus, pbus_id, 0x1F, (unsigned int)(pbus_address >> 6));
+    if ( ret < 0) {
+        AIR_RTN_ON_ERR_MSG(ret < 0, ret, "%s fail. (ret=%d)\n", __func__, ret);
+        return INVALID_DATA;
+    }
+    airoha_cl22_read(ebus, pbus_id, (unsigned int)((pbus_address >> 2) & 0xf), &pbus_data_low);
+    airoha_cl22_read(ebus, pbus_id, 0x10, &pbus_data_high);
+    pbus_data = (pbus_data_high << 16) + pbus_data_low;
+    return pbus_data;
+}
+
+/* Airoha Token Ring Write function */
+static int airoha_tr_reg_write(struct mii_bus *ebus, unsigned long tr_address, unsigned long tr_data)
+{
+    int ret = 0;
+    ret = airoha_cl22_write(ebus, EN8801S_MDIO_PHY_ID, 0x1F, 0x52b5);       /* page select */
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl22_write(ebus, EN8801S_MDIO_PHY_ID, 0x11, (unsigned int)(tr_data & 0xffff));
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl22_write(ebus, EN8801S_MDIO_PHY_ID, 0x12, (unsigned int)(tr_data >> 16));
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl22_write(ebus, EN8801S_MDIO_PHY_ID, 0x10, (unsigned int)(tr_address | TrReg_WR));
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl22_write(ebus, EN8801S_MDIO_PHY_ID, 0x1F, 0x0);          /* page resetore */
+    AIR_RTN_ERR(ret);
+    return ret;
+}
+
+#if 0
+/* Airoha Token Ring Read function */
+static unsigned long airoha_tr_reg_read(struct mii_bus *ebus, unsigned long tr_address)
+{
+    unsigned long tr_data;
+    unsigned int tr_data_low, tr_data_high;
+
+    airoha_cl22_write(ebus, EN8801S_MDIO_PHY_ID, 0x1F, 0x52b5);       /* page select */
+    airoha_cl22_write(ebus, EN8801S_MDIO_PHY_ID, 0x10, (unsigned int)(tr_address | TrReg_RD));
+    airoha_cl22_read(ebus, EN8801S_MDIO_PHY_ID, 0x11, &tr_data_low);
+    airoha_cl22_read(ebus, EN8801S_MDIO_PHY_ID, 0x12, &tr_data_high);
+    airoha_cl22_write(ebus, EN8801S_MDIO_PHY_ID, 0x1F, 0x0);          /* page resetore */
+    tr_data = (tr_data_high << 16) + tr_data_low;
+    return tr_data;
+}
+#endif
+#ifdef AIR_LED_SUPPORT
+static int airoha_led_set_usr_def(struct mii_bus *mbus, u8 entity, int polar,
+                                   u16 on_evt, u16 blk_evt)
+{
+    int ret = 0;
+    if (AIR_ACTIVE_HIGH == polar) {
+        on_evt |= LED_ON_POL;
+    } else {
+        on_evt &= ~LED_ON_POL;
+    }
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1f, LED_ON_CTRL(entity), on_evt | LED_ON_EN);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1f, LED_BLK_CTRL(entity), blk_evt);
+    AIR_RTN_ERR(ret);
+    return 0;
+}
+
+static int airoha_led_set_mode(struct mii_bus *mbus, u8 mode)
+{
+    u16 cl45_data;
+    int err = 0;
+
+    err = airoha_cl45_read(mbus, EN8801S_MDIO_PHY_ID, 0x1f, LED_BCR, &cl45_data);
+    AIR_RTN_ERR(err);
+
+    switch (mode) {
+    case AIR_LED_MODE_DISABLE:
+        cl45_data &= ~LED_BCR_EXT_CTRL;
+        cl45_data &= ~LED_BCR_MODE_MASK;
+        cl45_data |= LED_BCR_MODE_DISABLE;
+        break;
+    case AIR_LED_MODE_USER_DEFINE:
+        cl45_data |= LED_BCR_EXT_CTRL;
+        cl45_data |= LED_BCR_CLK_EN;
+        break;
+    default:
+        return -EINVAL;
+    }
+
+    err = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1f, LED_BCR, cl45_data);
+    AIR_RTN_ERR(err);
+    return 0;
+}
+
+static int airoha_led_set_state(struct mii_bus *mbus, u8 entity, u8 state)
+{
+    u16 cl45_data;
+    int err;
+
+    err = airoha_cl45_read(mbus, EN8801S_MDIO_PHY_ID, 0x1f, LED_ON_CTRL(entity), &cl45_data);
+    AIR_RTN_ERR(err);
+    if (LED_ENABLE == state) {
+        cl45_data |= LED_ON_EN;
+    } else {
+        cl45_data &= ~LED_ON_EN;
+    }
+
+    err = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1f, LED_ON_CTRL(entity), cl45_data);
+    AIR_RTN_ERR(err);
+    return 0;
+}
+
+static int en8801s_led_init(struct phy_device *phydev)
+{
+
+    unsigned long led_gpio = 0, reg_value = 0;
+    int ret = 0, led_id;
+    struct mii_bus *mbus = phydev_mdio_bus(phydev);
+    int gpio_led_rg[3] = {0x1870, 0x1874, 0x1878};
+    u16 cl45_data = led_dur;
+    struct device *dev = &mbus->dev;
+
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1f, LED_BLK_DUR, cl45_data);
+    AIR_RTN_ERR(ret);
+    cl45_data >>= 1;
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1f, LED_ON_DUR, cl45_data);
+    AIR_RTN_ERR(ret);
+    ret = airoha_led_set_mode(mbus, AIR_LED_MODE_USER_DEFINE);
+    if (ret != 0) {
+        dev_err(dev, "LED fail to set mode, ret %d !\n", ret);
+        return ret;
+    }
+    for(led_id = 0; led_id < EN8801S_LED_COUNT; led_id++)
+    {
+        reg_value = 0;
+        ret = airoha_led_set_state(mbus, led_id, led_cfg[led_id].en);
+        if (ret != 0)
+        {
+            dev_err(dev, "LED fail to set state, ret %d !\n", ret);
+            return ret;
+        }
+        if (LED_ENABLE == led_cfg[led_id].en)
+        {
+            if ( (led_cfg[led_id].gpio < 0) || led_cfg[led_id].gpio > 9)
+            {
+                dev_err(dev, "GPIO%d is out of range!! GPIO number is 0~9.\n", led_cfg[led_id].gpio);
+                return -EIO;
+            }
+            led_gpio |= BIT(led_cfg[led_id].gpio);
+            reg_value = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, gpio_led_rg[led_cfg[led_id].gpio / 4]);
+            LED_SET_GPIO_SEL(led_cfg[led_id].gpio, led_id, reg_value);
+            dev_dbg(dev, "[Airoha] gpio%d, reg_value 0x%lx\n", led_cfg[led_id].gpio, reg_value);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, gpio_led_rg[led_cfg[led_id].gpio / 4], reg_value);
+            AIR_RTN_ERR(ret);
+            ret = airoha_led_set_usr_def(mbus, led_id, led_cfg[led_id].pol, led_cfg[led_id].on_cfg, led_cfg[led_id].blk_cfg);
+            if (ret != 0)
+            {
+                dev_err(dev, "LED fail to set usr def, ret %d !\n", ret);
+                return ret;
+            }
+        }
+    }
+    reg_value = (airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x1880) & ~led_gpio);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1880, reg_value);
+    AIR_RTN_ERR(ret);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x186c, led_gpio);
+    AIR_RTN_ERR(ret);
+
+    dev_info(dev, "LED initialize OK !\n");
+    return 0;
+}
+#endif
+static int en8801s_phy_process(struct phy_device *phydev)
+{
+    struct mii_bus *mbus = phydev_mdio_bus(phydev);
+    unsigned long reg_value = 0;
+    int ret = 0;
+
+    reg_value = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x19e0);
+    reg_value |= BIT(0);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x19e0, reg_value);
+    AIR_RTN_ERR(ret);
+    reg_value = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x19e0);
+    reg_value &= ~BIT(0);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x19e0, reg_value);
+    AIR_RTN_ERR(ret);
+    return ret;
+}
+
+static int en8801s_phase1_init(struct phy_device *phydev)
+{
+    unsigned long pbus_data;
+    unsigned int pbusAddress;
+    u16 reg_value;
+    int retry, ret = 0;
+    struct mii_bus *mbus = phydev_mdio_bus(phydev);
+    struct device *dev = &mbus->dev;
+    msleep(1500);
+
+    pbusAddress = EN8801S_PBUS_DEFAULT_ID;
+    retry = MAX_OUI_CHECK;
+    while (1) {
+        pbus_data = airoha_pbus_read(mbus, pbusAddress, EN8801S_RG_ETHER_PHY_OUI);      /* PHY OUI */
+        if (EN8801S_PBUS_OUI == pbus_data) {
+            pbus_data = airoha_pbus_read(mbus, pbusAddress, EN8801S_RG_SMI_ADDR);       /* SMI ADDR */
+            pbus_data = (pbus_data & 0xffff0000) | (unsigned long)(EN8801S_PBUS_PHY_ID << 8) | (unsigned long)(EN8801S_MDIO_PHY_ID);
+            dev_info(dev, "SMI_ADDR=%lx (renew)\n", pbus_data);
+            ret = airoha_pbus_write(mbus, pbusAddress, EN8801S_RG_SMI_ADDR, pbus_data);
+            AIR_RTN_ERR(ret);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, EN8801S_RG_BUCK_CTL, 0x03);
+            AIR_RTN_ERR(ret);
+            mdelay(10);
+            break;
+        } else {
+            pbusAddress = EN8801S_PBUS_PHY_ID;
+        }
+        if (0 == --retry) {
+            dev_err(dev, "Probe fail !\n");
+            return 0;
+        }
+    }
+
+    pbus_data = (airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, EN8801S_RG_LTR_CTL) & 0xfffffffc) | 0x10 | (EN8801S_RX_POLARITY << 1) | EN8801S_TX_POLARITY;
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, EN8801S_RG_LTR_CTL, pbus_data);
+    AIR_RTN_ERR(ret);
+    mdelay(10);
+    pbus_data &= ~BIT(4);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, EN8801S_RG_LTR_CTL, pbus_data);
+    AIR_RTN_ERR(ret);
+
+    retry = MAX_RETRY;
+    while (1) {
+        mdelay(10);
+        reg_value = phy_read(phydev, MII_PHYSID2);
+        if (reg_value == EN8801S_PHY_ID2) {
+            break;    /* wait GPHY ready */
+        }
+        retry--;
+        if (0 == retry) {
+            dev_err(dev, "Initialize fail !\n");
+            return 0;
+        }
+    }
+    /* Software Reset PHY */
+    reg_value = phy_read(phydev, MII_BMCR);
+    reg_value |= BMCR_RESET;
+    ret = phy_write(phydev, MII_BMCR, reg_value);
+    AIR_RTN_ERR(ret);
+    retry = MAX_RETRY;
+    do {
+        mdelay(10);
+        reg_value = phy_read(phydev, MII_BMCR);
+        retry--;
+        if (0 == retry) {
+            dev_err(dev, "Reset fail !\n");
+            return 0;
+        }
+    } while (reg_value & BMCR_RESET);
+
+    phydev->dev_flags = PHY_STATE_INIT;
+
+    dev_info(dev, "Phase1 initialize OK ! (%s)\n", EN8801S_DRIVER_VERSION);
+    return 0;
+}
+
+static int en8801s_phase2_init(struct phy_device *phydev)
+{
+    gephy_all_REG_LpiReg1Ch      GPHY_RG_LPI_1C;
+    gephy_all_REG_dev1Eh_reg324h GPHY_RG_1E_324;
+    gephy_all_REG_dev1Eh_reg012h GPHY_RG_1E_012;
+    gephy_all_REG_dev1Eh_reg017h GPHY_RG_1E_017;
+    unsigned long pbus_data;
+    u16 cl45_value;
+    int retry, ret = 0;
+    struct mii_bus *mbus = phydev_mdio_bus(phydev);
+    struct device *dev = &mbus->dev;
+
+    pbus_data = (airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, EN8801S_RG_LTR_CTL) & 0xfffffffc) | 0x10 | (EN8801S_RX_POLARITY << 1) | EN8801S_TX_POLARITY;
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, EN8801S_RG_LTR_CTL, pbus_data);
+    AIR_RTN_ERR(ret);
+    mdelay(10);
+    pbus_data &= 0xffffffef;
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, EN8801S_RG_LTR_CTL, pbus_data);
+    AIR_RTN_ERR(ret);
+
+    pbus_data = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x1690);
+    pbus_data |= BIT(31);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1690, pbus_data);
+    AIR_RTN_ERR(ret);
+
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0600, 0x0c000c00);
+    AIR_RTN_ERR(ret);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x10, 0xD801);
+    AIR_RTN_ERR(ret);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0,  0x9140);
+    AIR_RTN_ERR(ret);
+
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0A14, 0x0003);
+    AIR_RTN_ERR(ret);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0600, 0x0c000c00);
+    AIR_RTN_ERR(ret);
+    /* Set FCM control */
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1404, 0x004b);
+    AIR_RTN_ERR(ret);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x140c, 0x0007);
+    AIR_RTN_ERR(ret);
+
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x142c, 0x05050505);
+    AIR_RTN_ERR(ret);
+    pbus_data = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x1440);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1440, pbus_data & ~BIT(11));
+    AIR_RTN_ERR(ret);
+
+    pbus_data = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x1408);
+    ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1408, pbus_data | BIT(5));
+    AIR_RTN_ERR(ret);
+
+    /* Set GPHY Perfomance*/
+    /* Token Ring */
+    ret = airoha_tr_reg_write(mbus, RgAddr_R1000DEC_15h, 0x0055A0);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_R1000DEC_17h, 0x07FF3F);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_PMA_00h,      0x00001E);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_PMA_01h,      0x6FB90A);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_PMA_17h,      0x060671);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_PMA_18h,      0x0E2F00);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_TR_26h,       0x444444);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_03h,     0x000000);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_06h,     0x2EBAEF);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_08h,     0x00000B);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_0Ch,     0x00504D);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_0Dh,     0x02314F);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_0Fh,     0x003028);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_10h,     0x005010);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_11h,     0x040001);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_13h,     0x018670);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_14h,     0x00024A);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_1Bh,     0x000072);
+    AIR_RTN_ERR(ret);
+    ret = airoha_tr_reg_write(mbus, RgAddr_DSPF_1Ch,     0x003210);
+    AIR_RTN_ERR(ret);
+
+    /* CL22 & CL45 */
+    ret = phy_write(phydev, 0x1f, 0x03);
+    AIR_RTN_ERR(ret);
+    GPHY_RG_LPI_1C.DATA = phy_read(phydev, RgAddr_LPI_1Ch);
+    GPHY_RG_LPI_1C.DataBitField.smi_deton_th = 0x0C;
+    ret = phy_write(phydev, RgAddr_LPI_1Ch, GPHY_RG_LPI_1C.DATA);
+    AIR_RTN_ERR(ret);
+    ret = phy_write(phydev, RgAddr_LPI_1Ch, 0xC92);
+    AIR_RTN_ERR(ret);
+    ret = phy_write(phydev, RgAddr_AUXILIARY_1Dh, 0x1);
+    AIR_RTN_ERR(ret);
+    ret = phy_write(phydev, 0x1f, 0x0);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x120, 0x8014);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x122, 0xffff);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x123, 0xffff);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x144, 0x0200);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x14A, 0xEE20);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x189, 0x0110);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x19B, 0x0111);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x234, 0x0181);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x238, 0x0120);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x239, 0x0117);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x268, 0x07F4);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x2D1, 0x0733);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x323, 0x0011);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x324, 0x013F);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x326, 0x0037);
+    AIR_RTN_ERR(ret);
+
+    ret = airoha_cl45_read(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x324, &cl45_value);
+    AIR_RTN_ERR(ret);
+    GPHY_RG_1E_324.DATA = cl45_value;
+    GPHY_RG_1E_324.DataBitField.smi_det_deglitch_off = 0;
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x324, GPHY_RG_1E_324.DATA);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x19E, 0xC2);
+    AIR_RTN_ERR(ret);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x013, 0x0);
+    AIR_RTN_ERR(ret);
+
+    /* EFUSE */
+    airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1C08, 0x40000040);
+    retry = MAX_RETRY;
+    while (0 != retry) {
+        mdelay(1);
+        pbus_data = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x1C08);
+        if ((pbus_data & BIT(30)) == 0) {
+            break;
+        }
+        retry--;
+    }
+    pbus_data = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x1C38);          /* RAW#2 */
+    GPHY_RG_1E_012.DataBitField.da_tx_i2mpb_a_tbt = (u16)(pbus_data & 0x03f);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x12, GPHY_RG_1E_012.DATA);
+    AIR_RTN_ERR(ret);
+    GPHY_RG_1E_017.DataBitField.da_tx_i2mpb_b_tbt = (u16)((pbus_data >> 8) & 0x03f);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x12, GPHY_RG_1E_017.DATA);
+    AIR_RTN_ERR(ret);
+
+    airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1C08, 0x40400040);
+    retry = MAX_RETRY;
+    while (0 != retry) {
+        mdelay(1);
+        pbus_data = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x1C08);
+        if ((pbus_data & BIT(30)) == 0) {
+            break;
+        }
+        retry--;
+    }
+    pbus_data = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x1C30);          /* RAW#16 */
+    GPHY_RG_1E_324.DataBitField.smi_det_deglitch_off = (u16)((pbus_data >> 12) & 0x01);
+    ret = airoha_cl45_write(mbus, EN8801S_MDIO_PHY_ID, 0x1E, 0x324, GPHY_RG_1E_324.DATA);
+    AIR_RTN_ERR(ret);
+#ifdef AIR_LED_SUPPORT
+    ret = en8801s_led_init(phydev);
+    if (ret != 0){
+        dev_err(dev, "en8801s_led_init fail (ret:%d) !\n", ret);
+    }
+#endif
+    pbus_data = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x1960);
+    pbus_data -= (2 << 22);
+    airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1960, pbus_data);
+    mdelay(10);
+    pbus_data -= (2 << 22);
+    airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1960, pbus_data);
+
+    dev_info(dev, "Phase2 initialize OK !\n");
+    return 0;
+}
+
+static int en8801s_read_status(struct phy_device *phydev)
+{
+    int ret = 0, preSpeed = phydev->speed, retry = MAX_RETRY;
+    struct mii_bus *mbus = phydev_mdio_bus(phydev);
+    u32 reg_value;
+    struct device *dev = &mbus->dev;
+
+    ret = genphy_read_status(phydev);
+    if (LINK_DOWN == phydev->link) preSpeed = phydev->speed = 0;
+
+    if (phydev->dev_flags == PHY_STATE_PROCESS) {
+        en8801s_phy_process(phydev);
+        phydev->dev_flags = PHY_STATE_DONE;
+    }
+
+    if (phydev->dev_flags == PHY_STATE_INIT) {
+        do {
+            mdelay(100);
+            reg_value = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0xb04);
+            dev_dbg(dev, "[Airoha] 0xB04, reg_value 0x%x\n", reg_value);
+            reg_value &= 0x21;
+            if(reg_value == 0x21) {
+                ret = en8801s_phase2_init(phydev);
+                if (ret != 0) {
+                    dev_info(dev, "en8801_phase2_init failed\n");
+                    phydev->dev_flags = PHY_STATE_FAIL;
+                    return -1;
+                } else {
+                    phydev->dev_flags = PHY_STATE_PROCESS;
+                    break;
+                }
+
+            }
+            if(0 == --retry) {
+                dev_err(dev, "0xB04 return 0x%x !\n", reg_value);
+                phydev->dev_flags = PHY_STATE_SS_FAIL;
+                return -1;
+            }
+        } while(retry);
+    }
+
+    if ((preSpeed != phydev->speed) && (LINK_UP == phydev->link)) {
+        preSpeed = phydev->speed;
+
+        if (preSpeed == SPEED_10) {
+            reg_value = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x1694);
+            reg_value |= BIT(31);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1694, reg_value);
+            AIR_RTN_ERR(ret);
+            phydev->dev_flags = PHY_STATE_PROCESS;
+        } else {
+            reg_value = airoha_pbus_read(mbus, EN8801S_PBUS_PHY_ID, 0x1694);
+            reg_value &= ~BIT(31);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1694, reg_value);
+            AIR_RTN_ERR(ret);
+            phydev->dev_flags = PHY_STATE_PROCESS;
+        }
+
+        airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0600, 0x0c000c00);
+        if (SPEED_1000 == preSpeed) {
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x10, 0xD801);
+            AIR_RTN_ERR(ret);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0,  0x9140);
+            AIR_RTN_ERR(ret);
+
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0A14, 0x0003);
+            AIR_RTN_ERR(ret);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0600, 0x0c000c00);
+            AIR_RTN_ERR(ret);
+            mdelay(2);      /* delay 2 ms */
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1404, 0x004b);
+            AIR_RTN_ERR(ret);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x140c, 0x0007);
+            AIR_RTN_ERR(ret);
+        } else if (SPEED_100 == preSpeed) {
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x10, 0xD401);
+            AIR_RTN_ERR(ret);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0,  0x9140);
+            AIR_RTN_ERR(ret);
+
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0A14, 0x0007);
+            AIR_RTN_ERR(ret);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0600, 0x0c11);
+            AIR_RTN_ERR(ret);
+            mdelay(2);      /* delay 2 ms */
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1404, 0x0027);
+            AIR_RTN_ERR(ret);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x140c, 0x0007);
+            AIR_RTN_ERR(ret);
+        } else if (SPEED_10 == preSpeed) {
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x10, 0xD001);
+            AIR_RTN_ERR(ret);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0,  0x9140);
+            AIR_RTN_ERR(ret);
+
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0A14, 0x000b);
+            AIR_RTN_ERR(ret);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x0600, 0x0c11);
+            AIR_RTN_ERR(ret);
+            mdelay(2);      /* delay 2 ms */
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x1404, 0x0027);
+            AIR_RTN_ERR(ret);
+            ret = airoha_pbus_write(mbus, EN8801S_PBUS_PHY_ID, 0x140c, 0x0007);
+            AIR_RTN_ERR(ret);
+        }
+    }
+    return ret;
+}
+
+static struct phy_driver Airoha_driver[] = {
+    {
+        .phy_id         = EN8801SC_PHY_ID,
+        .name           = "Airoha EN8801SC",
+        .phy_id_mask    = 0x0ffffff0,
+        .features       = PHY_GBIT_FEATURES,
+        .config_init    = en8801s_phase1_init,
+        .config_aneg    = genphy_config_aneg,
+        .read_status    = en8801s_read_status,
+        .suspend        = genphy_suspend,
+        .resume         = genphy_resume,
+    }
+};
+
+module_phy_driver(Airoha_driver);
+
+static struct mdio_device_id __maybe_unused Airoha_tbl[] = {
+    { EN8801SC_PHY_ID, 0x0ffffff0 },
+    { }
+};
+
+MODULE_DEVICE_TABLE(mdio, Airoha_tbl);
Index: drivers/net/phy/en8801sc.h
===================================================================
--- /dev/null
+++ b/drivers/net/phy/en8801sc.h
@@ -0,0 +1,276 @@
+// SPDX-License-Identifier: GPL-2.0
+/* FILE NAME:  en8801sc.h
+ * PURPOSE:
+ *      Define EN8801SC driver function
+ *
+ * NOTES:
+ *
+ */
+
+#ifndef __EN8801SC_H
+#define __EN8801SC_H
+
+/* NAMING DECLARATIONS
+ */
+#define EN8801S_DRIVER_VERSION  "1.1.5"
+
+#define PHY_ADDRESS_RANGE       0x18
+#define EN8801S_PBUS_DEFAULT_ID 0x1e
+#define EN8801S_MDIO_PHY_ID     0x18       /* Range PHY_ADDRESS_RANGE .. 0x1e */
+#define EN8801S_PBUS_PHY_ID     (EN8801S_MDIO_PHY_ID + 1)
+
+#define EN8801S_RG_ETHER_PHY_OUI 0x19a4
+#define EN8801S_RG_SMI_ADDR      0x19a8
+#define EN8801S_RG_BUCK_CTL      0x1a20
+#define EN8801S_RG_LTR_CTL      0x0cf8
+
+#define EN8801S_PBUS_OUI        0x17a5
+#define EN8801S_PHY_ID1         0x03a2
+#define EN8801S_PHY_ID2         0x9461
+#define EN8801SC_PHY_ID         0x03a29471
+
+#define LED_ON_CTRL(i)              (0x024 + ((i)*2))
+#define LED_ON_EN                   (1 << 15)
+#define LED_ON_POL                  (1 << 14)
+#define LED_ON_EVT_MASK             (0x7f)
+/* LED ON Event Option.B */
+#define LED_ON_EVT_FORCE            (1 << 6)
+#define LED_ON_EVT_LINK_DOWN        (1 << 3)
+#define LED_ON_EVT_LINK_10M         (1 << 2)
+#define LED_ON_EVT_LINK_100M        (1 << 1)
+#define LED_ON_EVT_LINK_1000M       (1 << 0)
+/* LED ON Event Option.E */
+
+#define LED_BLK_CTRL(i)             (0x025 + ((i)*2))
+#define LED_BLK_EVT_MASK            (0x3ff)
+/* LED Blinking Event Option.B*/
+#define LED_BLK_EVT_FORCE           (1 << 9)
+#define LED_BLK_EVT_10M_RX_ACT      (1 << 5)
+#define LED_BLK_EVT_10M_TX_ACT      (1 << 4)
+#define LED_BLK_EVT_100M_RX_ACT     (1 << 3)
+#define LED_BLK_EVT_100M_TX_ACT     (1 << 2)
+#define LED_BLK_EVT_1000M_RX_ACT    (1 << 1)
+#define LED_BLK_EVT_1000M_TX_ACT    (1 << 0)
+/* LED Blinking Event Option.E*/
+#define LED_ENABLE                  1
+#define LED_DISABLE                 0
+
+#define LINK_UP                 1
+#define LINK_DOWN               0
+
+//#define TEST_BOARD
+#if defined(TEST_BOARD)
+/* SFP sample for verification */
+#define EN8801S_TX_POLARITY     1
+#define EN8801S_RX_POLARITY     0
+#else
+/* chip on board */
+#define EN8801S_TX_POLARITY     0
+#define EN8801S_RX_POLARITY     1       /* The pin default assignment is set to 1 */
+#endif
+
+/*
+The following led_cfg example is for reference only.
+LED5 1000M/LINK/ACT  (GPIO5)  <-> BASE_T_LED0,
+LED6 10/100M/LINK/ACT(GPIO9)  <-> BASE_T_LED1,
+LED4 100M/LINK/ACT   (GPIO8)  <-> BASE_T_LED2,
+*/
+/* User-defined.B */
+#define BASE_T_LED0_ON_CFG      (LED_ON_EVT_LINK_1000M)
+#define BASE_T_LED0_BLK_CFG     (LED_BLK_EVT_1000M_TX_ACT | LED_BLK_EVT_1000M_RX_ACT)
+#define BASE_T_LED1_ON_CFG      (LED_ON_EVT_LINK_100M | LED_ON_EVT_LINK_10M)
+#define BASE_T_LED1_BLK_CFG     (LED_BLK_EVT_100M_TX_ACT | LED_BLK_EVT_100M_RX_ACT | \
+                                 LED_BLK_EVT_10M_TX_ACT | LED_BLK_EVT_10M_RX_ACT )
+#define BASE_T_LED2_ON_CFG      (LED_ON_EVT_LINK_100M)
+#define BASE_T_LED2_BLK_CFG     (LED_BLK_EVT_100M_TX_ACT | LED_BLK_EVT_100M_RX_ACT)
+#define BASE_T_LED3_ON_CFG      (0x0)
+#define BASE_T_LED3_BLK_CFG     (0x0)
+/* User-defined.E */
+
+#define EN8801S_LED_COUNT       4
+
+#define MAX_RETRY               5
+#define MAX_OUI_CHECK           2
+/* CL45 MDIO control */
+#define MII_MMD_ACC_CTL_REG     0x0d
+#define MII_MMD_ADDR_DATA_REG   0x0e
+#define MMD_OP_MODE_DATA        BIT(14)
+
+#define MAX_TRG_COUNTER         5
+
+/* CL22 Reg Support Page Select */
+#define RgAddr_Reg1Fh        0x1f
+#define CL22_Page_Reg        0x0000
+#define CL22_Page_ExtReg     0x0001
+#define CL22_Page_MiscReg    0x0002
+#define CL22_Page_LpiReg     0x0003
+#define CL22_Page_tReg       0x02A3
+#define CL22_Page_TrReg      0x52B5
+
+/* CL45 Reg Support DEVID */
+#define DEVID_03             0x03
+#define DEVID_07             0x07
+#define DEVID_1E             0x1E
+#define DEVID_1F             0x1F
+
+/* TokenRing Reg Access */
+#define TrReg_PKT_XMT_STA    0x8000
+#define TrReg_WR             0x8000
+#define TrReg_RD             0xA000
+
+#define RgAddr_LPI_1Ch       0x1c
+#define RgAddr_AUXILIARY_1Dh 0x1d
+#define RgAddr_PMA_00h       0x0f80
+#define RgAddr_PMA_01h       0x0f82
+#define RgAddr_PMA_17h       0x0fae
+#define RgAddr_PMA_18h       0x0fb0
+#define RgAddr_DSPF_03h      0x1686
+#define RgAddr_DSPF_06h      0x168c
+#define RgAddr_DSPF_08h      0x1690
+#define RgAddr_DSPF_0Ch      0x1698
+#define RgAddr_DSPF_0Dh      0x169a
+#define RgAddr_DSPF_0Fh      0x169e
+#define RgAddr_DSPF_10h      0x16a0
+#define RgAddr_DSPF_11h      0x16a2
+#define RgAddr_DSPF_13h      0x16a6
+#define RgAddr_DSPF_14h      0x16a8
+#define RgAddr_DSPF_1Bh      0x16b6
+#define RgAddr_DSPF_1Ch      0x16b8
+#define RgAddr_TR_26h        0x0ecc
+#define RgAddr_R1000DEC_15h  0x03aa
+#define RgAddr_R1000DEC_17h  0x03ae
+
+#define LED_BCR                     (0x021)
+#define LED_BCR_EXT_CTRL            (1 << 15)
+#define LED_BCR_CLK_EN              (1 << 3)
+#define LED_BCR_TIME_TEST           (1 << 2)
+#define LED_BCR_MODE_MASK           (3)
+#define LED_BCR_MODE_DISABLE        (0)
+
+#define LED_ON_DUR                  (0x022)
+#define LED_ON_DUR_MASK             (0xffff)
+
+#define LED_BLK_DUR                 (0x023)
+#define LED_BLK_DUR_MASK            (0xffff)
+
+#define LED_GPIO_SEL_MASK 0x7FFFFFF
+
+#define UNIT_LED_BLINK_DURATION     1024
+
+/* Invalid data */
+#define INVALID_DATA            0xffffffff
+
+#define AIR_RTN_ON_ERR(cond, err)  \
+    do { if ((cond)) return (err); } while(0)
+
+#define AIR_RTN_ERR(err)                       AIR_RTN_ON_ERR(err < 0, err)
+#define AIR_RTN_ON_ERR_MSG(cond, err, msg...) \
+    do { if ((cond)) { dev_err(dev, ##msg); return (err); } } while(0)
+
+#define LED_SET_EVT(reg, cod, result, bit) do         \
+    {                                                 \
+        if(reg & cod) {                               \
+            result |= bit;                            \
+        }                                             \
+    } while(0)
+
+#define LED_SET_GPIO_SEL(gpio, led, val) do           \
+    {                                                 \
+            val |= (led << (8 * (gpio % 4)));         \
+    } while(0)
+
+/* DATA TYPE DECLARATIONS
+ */
+typedef struct AIR_BASE_T_LED_CFG_S
+{
+    u16 en;
+    u16 gpio;
+    u16 pol;
+    u16 on_cfg;
+    u16 blk_cfg;
+}AIR_BASE_T_LED_CFG_T;
+
+typedef struct
+{
+    u16 DATA_Lo;
+    u16 DATA_Hi;
+}TR_DATA_T;
+
+typedef union
+{
+    struct
+    {
+        /* b[15:00] */
+        u16 smi_deton_wt                             : 3;
+        u16 smi_det_mdi_inv                          : 1;
+        u16 smi_detoff_wt                            : 3;
+        u16 smi_sigdet_debouncing_en                 : 1;
+        u16 smi_deton_th                             : 6;
+        u16 rsv_14                                   : 2;
+    } DataBitField;
+    u16 DATA;
+} gephy_all_REG_LpiReg1Ch, *Pgephy_all_REG_LpiReg1Ch;
+
+typedef union
+{
+    struct
+    {
+        /* b[15:00] */
+        u16 rg_smi_detcnt_max                        : 6;
+        u16 rsv_6                                    : 2;
+        u16 rg_smi_det_max_en                        : 1;
+        u16 smi_det_deglitch_off                     : 1;
+        u16 rsv_10                                   : 6;
+    } DataBitField;
+    u16 DATA;
+} gephy_all_REG_dev1Eh_reg324h, *Pgephy_all_REG_dev1Eh_reg324h;
+
+typedef union
+{
+    struct
+    {
+        /* b[15:00] */
+        u16 da_tx_i2mpb_a_tbt                        : 6;
+        u16 rsv_6                                    : 4;
+        u16 da_tx_i2mpb_a_gbe                        : 6;
+    } DataBitField;
+    u16 DATA;
+} gephy_all_REG_dev1Eh_reg012h, *Pgephy_all_REG_dev1Eh_reg012h;
+
+typedef union
+{
+    struct
+    {
+        /* b[15:00] */
+        u16 da_tx_i2mpb_b_tbt                        : 6;
+        u16 rsv_6                                    : 2;
+        u16 da_tx_i2mpb_b_gbe                        : 6;
+        u16 rsv_14                                   : 2;
+    } DataBitField;
+    u16 DATA;
+} gephy_all_REG_dev1Eh_reg017h, *Pgephy_all_REG_dev1Eh_reg017h;
+
+typedef enum
+{
+    AIR_LED_BLK_DUR_32M,
+    AIR_LED_BLK_DUR_64M,
+    AIR_LED_BLK_DUR_128M,
+    AIR_LED_BLK_DUR_256M,
+    AIR_LED_BLK_DUR_512M,
+    AIR_LED_BLK_DUR_1024M,
+    AIR_LED_BLK_DUR_LAST
+} AIR_LED_BLK_DUT_T;
+
+typedef enum
+{
+    AIR_ACTIVE_LOW,
+    AIR_ACTIVE_HIGH,
+} AIR_LED_POLARITY;
+typedef enum
+{
+    AIR_LED_MODE_DISABLE,
+    AIR_LED_MODE_USER_DEFINE,
+    AIR_LED_MODE_LAST
+} AIR_LED_MODE_T;
+
+#endif /* End of __EN8801SC_H */
Index: drivers/net/phy/Kconfig
===================================================================
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -350,6 +350,11 @@ config AIROHA_EN8801S_PHY
 	depends on HWMON || HWMON=n
 	select MDIO_I2C
 
+config AIROHA_EN8801SC_PHY
+	tristate "Drivers for Airoha EN8801S Gigabit PHYs for MediaTek SoC."
+	---help---
+	  Currently supports the Airoha EN8801S PHY for MediaTek SoC.
+
 config AIROHA_EN8811H_PHY
 	tristate "Drivers for Airoha EN8811H 2.5G Gigabit PHY"
 	---help---
Index: drivers/net/phy/Makefile
===================================================================
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -68,5 +68,6 @@ ifdef CONFIG_HWMON
 aquantia-objs			+= aquantia_hwmon.o
 endif
+obj-$(CONFIG_AIROHA_EN8801SC_PHY)	+= en8801sc.o
 obj-$(CONFIG_AIROHA_EN8811H_PHY)	+= air_en8811h.o
 obj-$(CONFIG_AQUANTIA_PHY)	+= aquantia.o
 obj-$(CONFIG_AX88796B_PHY)	+= ax88796b.o