// SPDX-License-Identifier: GPL-2.0+ /* * Driver for the Airoha EN8811H 2.5 Gigabit PHY. * * Limitations of the EN8811H: * - Only full duplex supported * - Forced speed (AN off) is not supported by hardware (100Mbps) * * Source originated from airoha's en8811h.c and en8811h.h v1.2.1 * * Copyright (C) 2023 Airoha Technology Corp. */ #include <linux/phy.h> #include <linux/firmware.h> #include <linux/property.h> #include <linux/wordpart.h> #include <asm/unaligned.h> #define EN8811H_PHY_ID … #define EN8811H_MD32_DM … #define EN8811H_MD32_DSP … #define AIR_FW_ADDR_DM … #define AIR_FW_ADDR_DSP … /* MII Registers */ #define AIR_AUX_CTRL_STATUS … #define AIR_AUX_CTRL_STATUS_SPEED_MASK … #define AIR_AUX_CTRL_STATUS_SPEED_100 … #define AIR_AUX_CTRL_STATUS_SPEED_1000 … #define AIR_AUX_CTRL_STATUS_SPEED_2500 … #define AIR_EXT_PAGE_ACCESS … #define AIR_PHY_PAGE_STANDARD … #define AIR_PHY_PAGE_EXTENDED_4 … /* MII Registers Page 4*/ #define AIR_BPBUS_MODE … #define AIR_BPBUS_MODE_ADDR_FIXED … #define AIR_BPBUS_MODE_ADDR_INCR … #define AIR_BPBUS_WR_ADDR_HIGH … #define AIR_BPBUS_WR_ADDR_LOW … #define AIR_BPBUS_WR_DATA_HIGH … #define AIR_BPBUS_WR_DATA_LOW … #define AIR_BPBUS_RD_ADDR_HIGH … #define AIR_BPBUS_RD_ADDR_LOW … #define AIR_BPBUS_RD_DATA_HIGH … #define AIR_BPBUS_RD_DATA_LOW … /* Registers on MDIO_MMD_VEND1 */ #define EN8811H_PHY_FW_STATUS … #define EN8811H_PHY_READY … #define AIR_PHY_MCU_CMD_1 … #define AIR_PHY_MCU_CMD_1_MODE1 … #define AIR_PHY_MCU_CMD_2 … #define AIR_PHY_MCU_CMD_2_MODE1 … #define AIR_PHY_MCU_CMD_3 … #define AIR_PHY_MCU_CMD_3_MODE1 … #define AIR_PHY_MCU_CMD_3_DOCMD … #define AIR_PHY_MCU_CMD_4 … #define AIR_PHY_MCU_CMD_4_MODE1 … #define AIR_PHY_MCU_CMD_4_INTCLR … /* Registers on MDIO_MMD_VEND2 */ #define AIR_PHY_LED_BCR … #define AIR_PHY_LED_BCR_MODE_MASK … #define AIR_PHY_LED_BCR_TIME_TEST … #define AIR_PHY_LED_BCR_CLK_EN … #define AIR_PHY_LED_BCR_EXT_CTRL … #define AIR_PHY_LED_DUR_ON … #define AIR_PHY_LED_DUR_BLINK … #define AIR_PHY_LED_ON(i) … #define AIR_PHY_LED_ON_MASK … #define AIR_PHY_LED_ON_LINK1000 … #define AIR_PHY_LED_ON_LINK100 … #define AIR_PHY_LED_ON_LINK10 … #define AIR_PHY_LED_ON_LINKDOWN … #define AIR_PHY_LED_ON_FDX … #define AIR_PHY_LED_ON_HDX … #define AIR_PHY_LED_ON_FORCE_ON … #define AIR_PHY_LED_ON_LINK2500 … #define AIR_PHY_LED_ON_POLARITY … #define AIR_PHY_LED_ON_ENABLE … #define AIR_PHY_LED_BLINK(i) … #define AIR_PHY_LED_BLINK_1000TX … #define AIR_PHY_LED_BLINK_1000RX … #define AIR_PHY_LED_BLINK_100TX … #define AIR_PHY_LED_BLINK_100RX … #define AIR_PHY_LED_BLINK_10TX … #define AIR_PHY_LED_BLINK_10RX … #define AIR_PHY_LED_BLINK_COLLISION … #define AIR_PHY_LED_BLINK_RX_CRC_ERR … #define AIR_PHY_LED_BLINK_RX_IDLE_ERR … #define AIR_PHY_LED_BLINK_FORCE_BLINK … #define AIR_PHY_LED_BLINK_2500TX … #define AIR_PHY_LED_BLINK_2500RX … /* Registers on BUCKPBUS */ #define EN8811H_2P5G_LPA … #define EN8811H_2P5G_LPA_2P5G … #define EN8811H_FW_VERSION … #define EN8811H_POLARITY … #define EN8811H_POLARITY_TX_NORMAL … #define EN8811H_POLARITY_RX_REVERSE … #define EN8811H_GPIO_OUTPUT … #define EN8811H_GPIO_OUTPUT_345 … #define EN8811H_FW_CTRL_1 … #define EN8811H_FW_CTRL_1_START … #define EN8811H_FW_CTRL_1_FINISH … #define EN8811H_FW_CTRL_2 … #define EN8811H_FW_CTRL_2_LOADING … /* Led definitions */ #define EN8811H_LED_COUNT … /* Default LED setup: * GPIO5 <-> LED0 On: Link detected, blink Rx/Tx * GPIO4 <-> LED1 On: Link detected at 2500 or 1000 Mbps * GPIO3 <-> LED2 On: Link detected at 2500 or 100 Mbps */ #define AIR_DEFAULT_TRIGGER_LED0 … #define AIR_DEFAULT_TRIGGER_LED1 … #define AIR_DEFAULT_TRIGGER_LED2 … struct led { … }; struct en8811h_priv { … }; enum { … }; enum { … }; enum { … }; enum { … }; enum { … }; #define AIR_PHY_LED_DUR_UNIT … #define AIR_PHY_LED_DUR … static const unsigned long en8811h_led_trig = …; static int air_phy_read_page(struct phy_device *phydev) { … } static int air_phy_write_page(struct phy_device *phydev, int page) { … } static int __air_buckpbus_reg_write(struct phy_device *phydev, u32 pbus_address, u32 pbus_data) { … } static int air_buckpbus_reg_write(struct phy_device *phydev, u32 pbus_address, u32 pbus_data) { … } static int __air_buckpbus_reg_read(struct phy_device *phydev, u32 pbus_address, u32 *pbus_data) { … } static int air_buckpbus_reg_read(struct phy_device *phydev, u32 pbus_address, u32 *pbus_data) { … } static int __air_buckpbus_reg_modify(struct phy_device *phydev, u32 pbus_address, u32 mask, u32 set) { … } static int air_buckpbus_reg_modify(struct phy_device *phydev, u32 pbus_address, u32 mask, u32 set) { … } static int __air_write_buf(struct phy_device *phydev, u32 address, const struct firmware *fw) { … } static int air_write_buf(struct phy_device *phydev, u32 address, const struct firmware *fw) { … } static int en8811h_wait_mcu_ready(struct phy_device *phydev) { … } static int en8811h_load_firmware(struct phy_device *phydev) { … } static int en8811h_restart_mcu(struct phy_device *phydev) { … } static int air_hw_led_on_set(struct phy_device *phydev, u8 index, bool on) { … } static int air_hw_led_blink_set(struct phy_device *phydev, u8 index, bool blinking) { … } static int air_led_blink_set(struct phy_device *phydev, u8 index, unsigned long *delay_on, unsigned long *delay_off) { … } static int air_led_brightness_set(struct phy_device *phydev, u8 index, enum led_brightness value) { … } static int air_led_hw_control_get(struct phy_device *phydev, u8 index, unsigned long *rules) { struct en8811h_priv *priv = phydev->priv; if (index >= EN8811H_LED_COUNT) return -EINVAL; *rules = priv->led[index].rules; return 0; }; static int air_led_hw_control_set(struct phy_device *phydev, u8 index, unsigned long rules) { struct en8811h_priv *priv = phydev->priv; u16 on = 0, blink = 0; int ret; if (index >= EN8811H_LED_COUNT) return -EINVAL; priv->led[index].rules = rules; if (rules & BIT(TRIGGER_NETDEV_FULL_DUPLEX)) on |= AIR_PHY_LED_ON_FDX; if (rules & (BIT(TRIGGER_NETDEV_LINK_10) | BIT(TRIGGER_NETDEV_LINK))) on |= AIR_PHY_LED_ON_LINK10; if (rules & (BIT(TRIGGER_NETDEV_LINK_100) | BIT(TRIGGER_NETDEV_LINK))) on |= AIR_PHY_LED_ON_LINK100; if (rules & (BIT(TRIGGER_NETDEV_LINK_1000) | BIT(TRIGGER_NETDEV_LINK))) on |= AIR_PHY_LED_ON_LINK1000; if (rules & (BIT(TRIGGER_NETDEV_LINK_2500) | BIT(TRIGGER_NETDEV_LINK))) on |= AIR_PHY_LED_ON_LINK2500; if (rules & BIT(TRIGGER_NETDEV_RX)) { blink |= AIR_PHY_LED_BLINK_10RX | AIR_PHY_LED_BLINK_100RX | AIR_PHY_LED_BLINK_1000RX | AIR_PHY_LED_BLINK_2500RX; } if (rules & BIT(TRIGGER_NETDEV_TX)) { blink |= AIR_PHY_LED_BLINK_10TX | AIR_PHY_LED_BLINK_100TX | AIR_PHY_LED_BLINK_1000TX | AIR_PHY_LED_BLINK_2500TX; } if (blink || on) { /* switch hw-control on, so led-on and led-blink are off */ clear_bit(AIR_PHY_LED_STATE_FORCE_ON, &priv->led[index].state); clear_bit(AIR_PHY_LED_STATE_FORCE_BLINK, &priv->led[index].state); } else { priv->led[index].rules = 0; } ret = phy_modify_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_ON(index), AIR_PHY_LED_ON_MASK, on); if (ret < 0) return ret; return phy_write_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_BLINK(index), blink); }; static int air_led_init(struct phy_device *phydev, u8 index, u8 state, u8 pol) { … } static int air_leds_init(struct phy_device *phydev, int num, int dur, int mode) { … } static int en8811h_led_hw_is_supported(struct phy_device *phydev, u8 index, unsigned long rules) { if (index >= EN8811H_LED_COUNT) return -EINVAL; /* All combinations of the supported triggers are allowed */ if (rules & ~en8811h_led_trig) return -EOPNOTSUPP; return 0; }; static int en8811h_probe(struct phy_device *phydev) { … } static int en8811h_config_init(struct phy_device *phydev) { … } static int en8811h_get_features(struct phy_device *phydev) { … } static int en8811h_get_rate_matching(struct phy_device *phydev, phy_interface_t iface) { … } static int en8811h_config_aneg(struct phy_device *phydev) { … } static int en8811h_read_status(struct phy_device *phydev) { … } static int en8811h_clear_intr(struct phy_device *phydev) { … } static irqreturn_t en8811h_handle_interrupt(struct phy_device *phydev) { … } static struct phy_driver en8811h_driver[] = …; module_phy_driver(en8811h_driver); static struct mdio_device_id __maybe_unused en8811h_tbl[] = …; MODULE_DEVICE_TABLE(mdio, en8811h_tbl); MODULE_FIRMWARE(…); MODULE_FIRMWARE(…); MODULE_DESCRIPTION(…) …; MODULE_AUTHOR(…) …; MODULE_AUTHOR(…) …; MODULE_LICENSE(…) …;
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