[][kernel][common][eth][Add Airoha EN8811H v1.1.3 2.5G PHY driver]

[Description]
Add Airoha EN8811H v1.1.3 2.5G PHY driver.

Please be reminded that EthMD32.dm.bin and EthMD32.DSP.bin firmwares
should be copied to /$ROOTFS/lib/firmware directory.

If without this driver, kernel cannot load corresponding PHY driver
for Airoha EN8811H.

[Release-log]
N/A


Change-Id: Ia09e0ebfd7b3716f56bca8a3b67a88b79a269378
Reviewed-on: https://gerrit.mediatek.inc/c/openwrt/feeds/mtk_openwrt_feeds/+/7038649
diff --git a/target/linux/mediatek/patches-5.4/744-en8811h-2p5gphy-support.patch b/target/linux/mediatek/patches-5.4/744-en8811h-2p5gphy-support.patch
new file mode 100644
index 0000000..5a3e423
--- /dev/null
+++ b/target/linux/mediatek/patches-5.4/744-en8811h-2p5gphy-support.patch
@@ -0,0 +1,893 @@
+diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
+index 207046b..21a4497 100644
+--- a/drivers/net/phy/Kconfig
++++ b/drivers/net/phy/Kconfig
+@@ -350,6 +350,11 @@ config AIROHA_EN8801SC_PHY
+         ---help---
+           Currently supports the Airoha EN8801S PHY for MT7981 SoC.
+ 
++config AIROHA_EN8811H_PHY
++	tristate "Drivers for Airoha EN8811H 2.5G Gigabit PHY"
++	---help---
++	  Currently supports the Airoha EN8811H PHY.
++
+ config ADIN_PHY
+ 	tristate "Analog Devices Industrial Ethernet PHYs"
+ 	help
+diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
+index 1b13c02..744b249 100644
+--- a/drivers/net/phy/Makefile
++++ b/drivers/net/phy/Makefile
+@@ -71,6 +71,7 @@ ifdef CONFIG_AQUANTIA_PHY_FW_DOWNLOAD
+ ifdef CONFIG_HWMON
+ aquantia-objs			+= aquantia_hwmon.o
+ endif
++obj-$(CONFIG_AIROHA_EN8811H_PHY)	+= air_en8811h.o
+ obj-$(CONFIG_AQUANTIA_PHY)	+= aquantia.o
+ obj-$(CONFIG_AX88796B_PHY)	+= ax88796b.o
+ obj-$(CONFIG_AT803X_PHY)	+= at803x.o
+diff --git a/drivers/net/phy/air_en8811h.c b/drivers/net/phy/air_en8811h.c
+new file mode 100644
+index 0000000..cf564fc
+--- /dev/null
++++ b/drivers/net/phy/air_en8811h.c
+@@ -0,0 +1,702 @@
++// SPDX-License-Identifier: GPL-2.0+
++
++/* FILE NAME:  air_en8811h.c
++ * PURPOSE:
++ *      EN8811H phy driver for Linux
++ * NOTES:
++ *
++ */
++
++/* INCLUDE FILE DECLARATIONS
++ */
++#include <linux/kernel.h>
++#include <linux/errno.h>
++#include <linux/init.h>
++#include <linux/module.h>
++#include <linux/mii.h>
++#include <linux/phy.h>
++#include <linux/delay.h>
++#include <linux/ethtool.h>
++#include <linux/delay.h>
++#include <linux/version.h>
++#include <linux/firmware.h>
++#include <linux/crc32.h>
++
++#include "air_en8811h.h"
++
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0))
++#define phydev_mdio_bus(_dev) (_dev->bus)
++#define phydev_addr(_dev) (_dev->addr)
++#define phydev_dev(_dev) (&_dev->dev)
++#else
++#define phydev_mdio_bus(_dev) (_dev->mdio.bus)
++#define phydev_addr(_dev) (_dev->mdio.addr)
++#define phydev_dev(_dev) (&_dev->mdio.dev)
++#endif
++
++MODULE_DESCRIPTION("Airoha EN8811H PHY drivers");
++MODULE_AUTHOR("Airoha");
++MODULE_LICENSE("GPL");
++
++/*
++GPIO5  <-> BASE_T_LED0,
++GPIO4  <-> BASE_T_LED1,
++GPIO3  <-> BASE_T_LED2,
++*/
++/* User-defined.B */
++#define AIR_LED_SUPPORT
++#ifdef AIR_LED_SUPPORT
++static const AIR_BASE_T_LED_CFG_T led_cfg[3] =
++{
++    /*
++     *    LED Enable,            GPIO,            LED Polarity,            LED ON,               LED Blink
++     */
++         {LED_ENABLE,      AIR_LED0_GPIO5,       AIR_ACTIVE_HIGH,     BASE_T_LED0_ON_CFG,    BASE_T_LED0_BLK_CFG}, /* BASE-T LED0 */
++         {LED_ENABLE,      AIR_LED1_GPIO4,       AIR_ACTIVE_HIGH,     BASE_T_LED1_ON_CFG,    BASE_T_LED1_BLK_CFG}, /* BASE-T LED1 */
++         {LED_ENABLE,      AIR_LED2_GPIO3,       AIR_ACTIVE_HIGH,     BASE_T_LED2_ON_CFG,    BASE_T_LED2_BLK_CFG}, /* BASE-T LED2 */
++};
++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
++************************************************************************/
++#if 0
++/* Airoha MII read function */
++static int air_mii_cl22_read(struct mii_bus *ebus, unsigned int phy_addr,unsigned int phy_register)
++{
++    int read_data;
++    read_data = mdiobus_read(ebus, phy_addr, phy_register);
++    return read_data;
++}
++#endif
++/* Airoha MII write function */
++static int air_mii_cl22_write(struct mii_bus *ebus, unsigned int phy_addr, unsigned int phy_register,unsigned int write_data)
++{
++    int ret = 0;
++    ret = mdiobus_write(ebus, phy_addr, phy_register, write_data);
++    return ret;
++}
++
++static int air_mii_cl45_read(struct phy_device *phydev, int devad, u16 reg)
++{
++    int ret = 0;
++    int data;
++    struct device *dev = phydev_dev(phydev);
++    ret = phy_write(phydev, MII_MMD_ACC_CTL_REG, devad);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return INVALID_DATA;
++    }
++    ret = phy_write(phydev, MII_MMD_ADDR_DATA_REG, reg);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return INVALID_DATA;
++    }
++    ret = phy_write(phydev, MII_MMD_ACC_CTL_REG, MMD_OP_MODE_DATA | devad);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return INVALID_DATA;
++    }
++    data = phy_read(phydev, MII_MMD_ADDR_DATA_REG);
++    return data;
++}
++
++static int air_mii_cl45_write(struct phy_device *phydev, int devad, u16 reg, u16 write_data)
++{
++    int ret = 0;
++    struct device *dev = phydev_dev(phydev);
++    ret = phy_write(phydev, MII_MMD_ACC_CTL_REG, devad);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, MII_MMD_ADDR_DATA_REG, reg);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, MII_MMD_ACC_CTL_REG, MMD_OP_MODE_DATA | devad);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, MII_MMD_ADDR_DATA_REG, write_data);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    return 0;
++}
++/* Use default PBUS_PHY_ID */
++/* EN8811H PBUS write function */
++static int air_pbus_reg_write(struct phy_device *phydev, unsigned long pbus_address, unsigned long pbus_data)
++{
++    struct mii_bus *mbus = phydev_mdio_bus(phydev);
++    int addr = phydev_addr(phydev);
++    int ret = 0;
++    ret = air_mii_cl22_write(mbus, (addr + 8), 0x1F, (unsigned int)(pbus_address >> 6));
++    AIR_RTN_ERR(ret);
++    ret = air_mii_cl22_write(mbus, (addr + 8), (unsigned int)((pbus_address >> 2) & 0xf), (unsigned int)(pbus_data & 0xFFFF));
++    AIR_RTN_ERR(ret);
++    ret = air_mii_cl22_write(mbus, (addr + 8), 0x10, (unsigned int)(pbus_data >> 16));
++    AIR_RTN_ERR(ret);
++    return 0;
++}
++
++/* EN8811H BUCK write function */
++static int air_buckpbus_reg_write(struct phy_device *phydev, unsigned long pbus_address, unsigned int pbus_data)
++{
++    int ret = 0;
++    struct device *dev = phydev_dev(phydev);
++    ret = phy_write(phydev, 0x1F, (unsigned int)4);        /* page 4 */
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, 0x10, (unsigned int)0);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, 0x11, (unsigned int)((pbus_address >> 16) & 0xffff));
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, 0x12, (unsigned int)(pbus_address & 0xffff));
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, 0x13, (unsigned int)((pbus_data >> 16) & 0xffff));
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, 0x14, (unsigned int)(pbus_data & 0xffff));
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, 0x1F, 0);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    return 0;
++}
++
++/* EN8811H BUCK read function */
++static unsigned int air_buckpbus_reg_read(struct phy_device *phydev, unsigned long pbus_address)
++{
++    unsigned int pbus_data = 0, pbus_data_low, pbus_data_high;
++    int ret = 0;
++    struct device *dev = phydev_dev(phydev);
++    ret = phy_write(phydev, 0x1F, (unsigned int)4);        /* page 4 */
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return PBUS_INVALID_DATA;
++    }
++    ret = phy_write(phydev, 0x10, (unsigned int)0);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return PBUS_INVALID_DATA;
++    }
++    ret = phy_write(phydev, 0x15, (unsigned int)((pbus_address >> 16) & 0xffff));
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return PBUS_INVALID_DATA;
++    }
++    ret = phy_write(phydev, 0x16, (unsigned int)(pbus_address & 0xffff));
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return PBUS_INVALID_DATA;
++    }
++
++    pbus_data_high = phy_read(phydev, 0x17);
++    pbus_data_low = phy_read(phydev, 0x18);
++    pbus_data = (pbus_data_high << 16) + pbus_data_low;
++    ret = phy_write(phydev, 0x1F, 0);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    return pbus_data;
++}
++
++static int MDIOWriteBuf(struct phy_device *phydev, unsigned long address, const struct firmware *fw)
++{
++    unsigned int write_data, offset ;
++    int ret = 0;
++    struct device *dev = phydev_dev(phydev);
++    ret = phy_write(phydev, 0x1F, (unsigned int)4);            /* page 4 */
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, 0x10, (unsigned int)0x8000);        /* address increment*/
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, 0x11, (unsigned int)((address >> 16) & 0xffff));
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    ret = phy_write(phydev, 0x12, (unsigned int)(address & 0xffff));
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++
++    for (offset = 0; offset < fw->size; offset += 4)
++    {
++        write_data = (fw->data[offset + 3] << 8) | fw->data[offset + 2];
++        ret = phy_write(phydev, 0x13, write_data);
++        if (ret < 0) {
++            dev_err(dev, "phy_write, ret: %d\n", ret);
++            return ret;
++        }
++        write_data = (fw->data[offset + 1] << 8) | fw->data[offset];
++        ret = phy_write(phydev, 0x14, write_data);
++        if (ret < 0) {
++            dev_err(dev, "phy_write, ret: %d\n", ret);
++            return ret;
++        }
++    }
++    ret = phy_write(phydev, 0x1F, (unsigned int)0);
++    if (ret < 0) {
++        dev_err(dev, "phy_write, ret: %d\n", ret);
++        return ret;
++    }
++    return 0;
++}
++
++static int en8811h_load_firmware(struct phy_device *phydev)
++{
++    struct device *dev = phydev_dev(phydev);
++    const struct firmware *fw;
++    const char *firmware;
++    int ret = 0;
++    unsigned int crc32;
++    u32 pbus_value = 0;
++
++    ret = air_buckpbus_reg_write(phydev, 0x0f0018, 0x0);
++    AIR_RTN_ERR(ret);
++    pbus_value = air_buckpbus_reg_read(phydev, 0x800000);
++    pbus_value |= BIT(11);
++    ret = air_buckpbus_reg_write(phydev, 0x800000, pbus_value);
++    AIR_RTN_ERR(ret);
++    firmware = EN8811H_MD32_DM;
++    ret = request_firmware_direct(&fw, firmware, dev);
++    if (ret < 0) {
++        dev_info(dev, "failed to load firmware %s, ret: %d\n", firmware, ret);
++        return ret;
++    }
++    crc32 = ~crc32(~0, fw->data, fw->size);
++    dev_info(dev, "%s: crc32=0x%x\n", firmware, crc32);
++    /* Download DM */
++    ret = MDIOWriteBuf(phydev, 0x00000000, fw);
++    if (ret < 0) {
++        dev_info(dev, "MDIOWriteBuf 0x00000000 fail, ret: %d\n", ret);
++        return ret;
++    }
++    release_firmware(fw);
++
++    firmware = EN8811H_MD32_DSP;
++    ret = request_firmware_direct(&fw, firmware, dev);
++    if (ret < 0) {
++        dev_info(dev, "failed to load firmware %s, ret: %d\n", firmware, ret);
++        return ret;
++    }
++    crc32 = ~crc32(~0, fw->data, fw->size);
++    dev_info(dev, "%s: crc32=0x%x\n", firmware, crc32);
++    /* Download PM */
++    ret = MDIOWriteBuf(phydev, 0x00100000, fw);
++    if (ret < 0) {
++            dev_info(dev, "MDIOWriteBuf 0x00100000 fail , ret: %d\n", ret);
++            return ret;
++    }
++    release_firmware(fw);
++
++    pbus_value = air_buckpbus_reg_read(phydev, 0x800000);
++    pbus_value &= ~BIT(11);
++    ret = air_buckpbus_reg_write(phydev, 0x800000, pbus_value);
++    AIR_RTN_ERR(ret);
++    ret = air_buckpbus_reg_write(phydev, 0x0f0018, 0x01);
++    AIR_RTN_ERR(ret);
++    return 0;
++}
++
++#ifdef  AIR_LED_SUPPORT
++static int airoha_led_set_usr_def(struct phy_device *phydev, 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 = air_mii_cl45_write(phydev, 0x1f, LED_ON_CTRL(entity), on_evt | LED_ON_EN);
++    AIR_RTN_ERR(ret);
++    ret = air_mii_cl45_write(phydev, 0x1f, LED_BLK_CTRL(entity), blk_evt);
++    AIR_RTN_ERR(ret);
++    return 0;
++}
++
++static int airoha_led_set_mode(struct phy_device *phydev, u8 mode)
++{
++    u16 cl45_data;
++    int err = 0;
++    struct device *dev = phydev_dev(phydev);
++    cl45_data = air_mii_cl45_read(phydev, 0x1f, LED_BCR);
++    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:
++        dev_err(dev, "LED mode%d is not supported!\n", mode);
++        return -EINVAL;
++    }
++    err = air_mii_cl45_write(phydev, 0x1f, LED_BCR, cl45_data);
++    AIR_RTN_ERR(err);
++    return 0;
++}
++
++static int airoha_led_set_state(struct phy_device *phydev, u8 entity, u8 state)
++{
++    u16 cl45_data = 0;
++    int err;
++
++    cl45_data = air_mii_cl45_read(phydev, 0x1f, LED_ON_CTRL(entity));
++    if (LED_ENABLE == state) {
++        cl45_data |= LED_ON_EN;
++    } else {
++        cl45_data &= ~LED_ON_EN;
++    }
++
++    err = air_mii_cl45_write(phydev, 0x1f, LED_ON_CTRL(entity), cl45_data);
++    AIR_RTN_ERR(err);
++    return 0;
++}
++
++static int en8811h_led_init(struct phy_device *phydev)
++{
++
++    unsigned long led_gpio = 0, reg_value = 0;
++    u16 cl45_data = led_dur;
++    int ret = 0, led_id;
++    struct device *dev = phydev_dev(phydev);
++    ret = air_mii_cl45_write(phydev, 0x1f, LED_BLK_DUR, cl45_data);
++    AIR_RTN_ERR(ret);
++    cl45_data >>= 1;
++    ret = air_mii_cl45_write(phydev, 0x1f, LED_ON_DUR, cl45_data);
++    AIR_RTN_ERR(ret);
++    ret = airoha_led_set_mode(phydev, 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 < EN8811H_LED_COUNT; led_id++)
++    {
++        /* LED0 <-> GPIO5, LED1 <-> GPIO4, LED0 <-> GPIO3 */
++        if (led_cfg[led_id].gpio != (led_id + (AIR_LED0_GPIO5 - (2 * led_id))))
++        {
++            dev_err(dev, "LED%d uses incorrect GPIO%d !\n", led_id, led_cfg[led_id].gpio);
++            return -EINVAL;
++        }
++        ret = airoha_led_set_state(phydev, 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)
++        {
++            led_gpio |= BIT(led_cfg[led_id].gpio);
++            ret = airoha_led_set_usr_def(phydev, 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 default, ret %d !\n", ret);
++                return ret;
++            }
++        }
++    }
++    reg_value = air_buckpbus_reg_read(phydev, 0xcf8b8) | led_gpio;
++    ret = air_buckpbus_reg_write(phydev, 0xcf8b8, reg_value);
++    AIR_RTN_ERR(ret);
++
++    dev_info(dev, "LED initialize OK !\n");
++    return 0;
++}
++#endif /* AIR_LED_SUPPORT */
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(4, 5, 0))
++static int en8811h_get_features(struct phy_device *phydev)
++{
++    int ret;
++    struct device *dev = phydev_dev(phydev);
++    dev_info(dev, "%s()\n", __func__);
++    ret = air_pbus_reg_write(phydev, 0xcf928 , 0x0);
++    AIR_RTN_ERR(ret);
++    ret = genphy_read_abilities(phydev);
++    if (ret)
++        return ret;
++
++    /* EN8811H supports 100M/1G/2.5G speed. */
++    linkmode_clear_bit(ETHTOOL_LINK_MODE_10baseT_Half_BIT,
++               phydev->supported);
++    linkmode_clear_bit(ETHTOOL_LINK_MODE_10baseT_Full_BIT,
++               phydev->supported);
++    linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Half_BIT,
++               phydev->supported);
++    linkmode_set_bit(ETHTOOL_LINK_MODE_100baseT_Full_BIT,
++               phydev->supported);
++    linkmode_set_bit(ETHTOOL_LINK_MODE_1000baseT_Full_BIT,
++               phydev->supported);
++    linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseX_Full_BIT,
++               phydev->supported);
++    return 0;
++}
++#endif
++static int en8811h_phy_probe(struct phy_device *phydev)
++{
++    int ret = 0;
++    int reg_value, pid1 = 0, pid2 = 0;
++    u32 pbus_value = 0, retry;
++    struct device *dev = phydev_dev(phydev);
++    ret = air_pbus_reg_write(phydev, 0xcf928 , 0x0);
++    AIR_RTN_ERR(ret);
++    pid1 = phy_read(phydev, MII_PHYSID1);
++    if (pid1 < 0)
++        return pid1;
++    pid2 = phy_read(phydev, MII_PHYSID2);
++    if (pid2 < 0)
++        return pid2;
++    dev_info(dev, "PHY = %x - %x\n", pid1, pid2);
++    if ((EN8811H_PHY_ID1 != pid1) || (EN8811H_PHY_ID2 != pid2))
++    {
++        dev_err(dev, "EN8811H dose not exist !\n");
++        return -ENODEV;
++    }
++    ret = en8811h_load_firmware(phydev);
++    if (ret)
++    {
++        dev_err(dev,"EN8811H load firmware fail.\n");
++        return ret;
++    }
++    retry = MAX_RETRY;
++    do {
++        mdelay(300);
++        reg_value = air_mii_cl45_read(phydev, 0x1e, 0x8009);
++        if (EN8811H_PHY_READY == reg_value)
++        {
++            dev_info(dev, "EN8811H PHY ready!\n");
++            break;
++        }
++        retry--;
++    } while (retry);
++    if (0 == retry)
++    {
++        dev_err(dev, "EN8811H initialize fail ! reg: 0x%x\n", reg_value);
++        return -EIO;
++    }
++    /* Mode selection*/
++    dev_info(dev, "EN8811H Mode 1 !\n");
++    ret = air_mii_cl45_write(phydev, 0x1e, 0x800c, 0x0);
++    AIR_RTN_ERR(ret);
++    ret = air_mii_cl45_write(phydev, 0x1e, 0x800d, 0x0);
++    AIR_RTN_ERR(ret);
++    ret = air_mii_cl45_write(phydev, 0x1e, 0x800e, 0x1101);
++    AIR_RTN_ERR(ret);
++    ret = air_mii_cl45_write(phydev, 0x1e, 0x800f, 0x0002);
++    AIR_RTN_ERR(ret);
++
++    /* Serdes polarity */
++    pbus_value = air_buckpbus_reg_read(phydev, 0xca0f8);
++    pbus_value = (pbus_value & 0xfffffffc) | EN8811H_RX_POLARITY_NORMAL | EN8811H_TX_POLARITY_NORMAL;
++    ret = air_buckpbus_reg_write(phydev, 0xca0f8, pbus_value);
++    AIR_RTN_ERR(ret);
++    pbus_value = air_buckpbus_reg_read(phydev, 0xca0f8);
++    dev_info(dev, "0xca0f8= 0x%x\n", pbus_value);
++    pbus_value = air_buckpbus_reg_read(phydev, 0x3b3c);
++    dev_info(dev, "Version(0x3b3c)= %x\n", pbus_value);
++#if defined(AIR_LED_SUPPORT)
++    ret = en8811h_led_init(phydev);
++    if (ret < 0)
++    {
++        dev_err(dev, "en8811h_led_init fail. (ret=%d)\n", ret);
++        return ret;
++    }
++#endif
++    dev_info(dev, "EN8811H initialize OK ! (%s)\n", EN8811H_FW_VERSION);
++    return 0;
++}
++
++static int en8811h_get_autonego(struct phy_device *phydev, int *an)
++{
++    int reg;
++    reg = phy_read(phydev, MII_BMCR);
++    if (reg < 0)
++        return -EINVAL;
++    if (reg & BMCR_ANENABLE)
++        *an = AUTONEG_ENABLE;
++    else
++        *an = AUTONEG_DISABLE;
++    return 0;
++}
++
++static int en8811h_read_status(struct phy_device *phydev)
++{
++    int ret = 0, lpagb = 0, lpa = 0, common_adv_gb = 0, common_adv = 0, advgb = 0, adv = 0, reg = 0, an = AUTONEG_DISABLE, bmcr = 0;
++    int old_link = phydev->link;
++    u32 pbus_value = 0;
++    struct device *dev = phydev_dev(phydev);
++	ret = genphy_update_link(phydev);
++	if (ret)
++    {
++        dev_err(dev, "ret %d!\n", ret);
++		return ret;
++    }
++
++	if (old_link && phydev->link)
++		return 0;
++
++	phydev->speed = SPEED_UNKNOWN;
++	phydev->duplex = DUPLEX_UNKNOWN;
++	phydev->pause = 0;
++	phydev->asym_pause = 0;
++
++    reg = phy_read(phydev, MII_BMSR);
++    if (reg < 0)
++    {
++        dev_err(dev, "MII_BMSR reg %d!\n", reg);
++		return reg;
++    }
++    reg = phy_read(phydev, MII_BMSR);
++    if (reg < 0)
++    {
++        dev_err(dev, "MII_BMSR reg %d!\n", reg);
++		return reg;
++    }
++    if(reg & BMSR_LSTATUS)
++    {
++        pbus_value = air_buckpbus_reg_read(phydev, 0x109D4);
++        if (0x10 & pbus_value) {
++            phydev->speed = SPEED_2500;
++            phydev->duplex = DUPLEX_FULL;
++        }
++        else
++        {
++            ret = en8811h_get_autonego(phydev, &an);
++            if ((AUTONEG_ENABLE == an) && (0 == ret))
++            {
++                dev_dbg(dev, "AN mode!\n");
++                dev_dbg(dev, "SPEED 1000/100!\n");
++                lpagb = phy_read(phydev, MII_STAT1000);
++                if (lpagb < 0 )
++                    return lpagb;
++                advgb = phy_read(phydev, MII_CTRL1000);
++                if (adv < 0 )
++                    return adv;
++                common_adv_gb = (lpagb & (advgb << 2));
++
++                lpa = phy_read(phydev, MII_LPA);
++                if (lpa < 0 )
++                    return lpa;
++                adv = phy_read(phydev, MII_ADVERTISE);
++                if (adv < 0 )
++                    return adv;
++                common_adv = (lpa & adv);
++
++                phydev->speed = SPEED_10;
++                phydev->duplex = DUPLEX_HALF;
++                if (common_adv_gb & (LPA_1000FULL | LPA_1000HALF))
++                {
++                    phydev->speed = SPEED_1000;
++                    if (common_adv_gb & LPA_1000FULL)
++
++                        phydev->duplex = DUPLEX_FULL;
++                }
++                else if (common_adv & (LPA_100FULL | LPA_100HALF))
++                {
++                    phydev->speed = SPEED_100;
++                    if (common_adv & LPA_100FULL)
++                        phydev->duplex = DUPLEX_FULL;
++                }
++                else
++                {
++                    if (common_adv & LPA_10FULL)
++                        phydev->duplex = DUPLEX_FULL;
++                }
++            }
++            else
++            {
++                dev_dbg(dev, "Force mode!\n");
++                bmcr = phy_read(phydev, MII_BMCR);
++
++                if (bmcr < 0)
++                    return bmcr;
++
++                if (bmcr & BMCR_FULLDPLX)
++                    phydev->duplex = DUPLEX_FULL;
++                else
++                    phydev->duplex = DUPLEX_HALF;
++
++                if (bmcr & BMCR_SPEED1000)
++                    phydev->speed = SPEED_1000;
++                else if (bmcr & BMCR_SPEED100)
++                    phydev->speed = SPEED_100;
++                else
++                    phydev->speed = SPEED_UNKNOWN;
++            }
++        }
++    }
++
++	return ret;
++}
++static struct phy_driver en8811h_driver[] = {
++{
++    .phy_id         = EN8811H_PHY_ID,
++    .name           = "Airoha EN8811H",
++    .phy_id_mask    = 0x0ffffff0,
++    .probe          = en8811h_phy_probe,
++    .read_status    = en8811h_read_status,
++#if (LINUX_VERSION_CODE > KERNEL_VERSION(4, 5, 0))
++    .get_features   = en8811h_get_features,
++    .read_mmd       = air_mii_cl45_read,
++    .write_mmd      = air_mii_cl45_write,
++#endif
++} };
++
++int __init en8811h_phy_driver_register(void)
++{
++    int ret;
++#if (LINUX_VERSION_CODE < KERNEL_VERSION(4, 5, 0))
++    ret = phy_driver_register(en8811h_driver);
++#else
++    ret = phy_driver_register(en8811h_driver, THIS_MODULE);
++#endif
++    if (!ret)
++        return 0;
++
++    phy_driver_unregister(en8811h_driver);
++    return ret;
++}
++
++void __exit en8811h_phy_driver_unregister(void)
++{
++    phy_driver_unregister(en8811h_driver);
++}
++
++module_init(en8811h_phy_driver_register);
++module_exit(en8811h_phy_driver_unregister);
+diff --git a/drivers/net/phy/air_en8811h.h b/drivers/net/phy/air_en8811h.h
+new file mode 100644
+index 0000000..1c91627
+--- /dev/null
++++ b/drivers/net/phy/air_en8811h.h
+@@ -0,0 +1,151 @@
++#ifndef __EN8811H_H
++#define __EN8811H_H
++
++#define EN8811H_MD32_DM             "EthMD32.dm.bin"
++#define EN8811H_MD32_DSP            "EthMD32.DSP.bin"
++
++#define EN8811H_PHY_ID1             0x03a2
++#define EN8811H_PHY_ID2             0xa411
++#define EN8811H_PHY_ID              ((EN8811H_PHY_ID1 << 16) | EN8811H_PHY_ID2)
++#define EN8811H_PHY_READY           0x02
++#define MAX_RETRY                   5
++
++#define EN8811H_TX_POLARITY_NORMAL   0x1
++#define EN8811H_TX_POLARITY_REVERSE  0x0
++
++#define EN8811H_RX_POLARITY_REVERSE  (0x1 << 1)
++#define EN8811H_RX_POLARITY_NORMAL   (0x0 << 1)
++
++
++/*
++The following led_cfg example is for reference only.
++LED0 Link 2500/Blink 2500 TxRx   (GPIO5)    <-> BASE_T_LED0,
++LED1 Link 1000/Blink 1000 TxRx   (GPIO4)    <-> BASE_T_LED1,
++LED2 Link 100 /Blink 100  TxRx   (GPIO3)    <-> BASE_T_LED2,
++*/
++/* User-defined.B */
++#define BASE_T_LED0_ON_CFG      (LED_ON_EVT_LINK_2500M)
++#define BASE_T_LED0_BLK_CFG     (LED_BLK_EVT_2500M_TX_ACT | LED_BLK_EVT_2500M_RX_ACT)
++#define BASE_T_LED1_ON_CFG      (LED_ON_EVT_LINK_1000M)
++#define BASE_T_LED1_BLK_CFG     (LED_BLK_EVT_1000M_TX_ACT | LED_BLK_EVT_1000M_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)
++/* User-defined.E */
++
++/* 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 EN8811H_FW_VERSION          "1.1.3"
++
++#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             (0x1ff)
++/* LED ON Event Option.B */
++#define LED_ON_EVT_LINK_2500M       (1 << 8)
++#define LED_ON_EVT_FORCE            (1 << 6)
++#define LED_ON_EVT_LINK_DOWN        (1 << 3)
++#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            (0xfff)
++/* LED Blinking Event Option.B*/
++#define LED_BLK_EVT_2500M_RX_ACT    (1 << 11)
++#define LED_BLK_EVT_2500M_TX_ACT    (1 << 10)
++#define LED_BLK_EVT_FORCE           (1 << 9)
++#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 EN8811H_LED_COUNT           3
++
++#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 UNIT_LED_BLINK_DURATION     1024
++
++#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 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)
++
++#define INVALID_DATA                0xffff
++#define PBUS_INVALID_DATA           0xffffffff
++
++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 enum
++{
++    AIR_LED2_GPIO3 = 3,
++    AIR_LED1_GPIO4,
++    AIR_LED0_GPIO5,
++    AIR_LED_LAST
++} AIR_LED_GPIO;
++
++typedef enum {
++    AIR_BASE_T_LED0,
++    AIR_BASE_T_LED1,
++    AIR_BASE_T_LED2,
++    AIR_BASE_T_LED3
++}AIR_BASE_T_LED;
++
++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 __EN8811H_MD32_H */