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Date: Sat, 16 Dec 2023 21:16:48 +0100
From: Heiner Kallweit <hkallweit1@...il.com>
To: Eric Woudstra <ericwouds@...il.com>, "David S. Miller"
<davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
Rob Herring <robh+dt@...nel.org>,
Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
Conor Dooley <conor+dt@...nel.org>, Andrew Lunn <andrew@...n.ch>,
Russell King <linux@...linux.org.uk>,
Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Frank Wunderlich <frank-w@...lic-files.de>,
Daniel Golle <daniel@...rotopia.org>, Lucien Jheng
<lucien.jheng@...oha.com>, Zhi-Jun You <hujy652@...tonmail.com>
Cc: netdev@...r.kernel.org, devicetree@...r.kernel.org
Subject: Re: [PATCH RFC net-next 2/2] Add the Airoha EN8811H PHY driver
On 16.12.2023 20:44, Eric Woudstra wrote:
> * Source originated from airoha's en8811h v1.2.1 driver
> * Moved air_en8811h.h to air_en8811h.c
> * Removed air_pbus_reg_write() as it writes to another device on mdio-bus
> * Load firmware from /lib/firmware/airoha/ instead of /lib/firmware/
> * Moved firmware loading and setup to config_init()
> * Added .get_rate_matching()
> * Use generic phy_read/write() and phy_read/write_mmd()
> * Edited .get_features() to use generic C45 functions
> * Edited .config_aneg() and .read_status() to use a mix of generic C22/C45
> * Use led handling functions from mediatek-ge-soc.c
> * Simplified led handling by storing led rules
> * Cleanup macro definitions
> * Cleanup code to pass checkpatch.pl
> * General code cleanup
>
> Changes to be committed:
> modified: drivers/net/phy/Kconfig
> modified: drivers/net/phy/Makefile
> new file: drivers/net/phy/air_en8811h.c
>
> Signed-off-by: Eric Woudstra <ericwouds@...il.com>
> ---
> drivers/net/phy/Kconfig | 5 +
> drivers/net/phy/Makefile | 1 +
> drivers/net/phy/air_en8811h.c | 1044 +++++++++++++++++++++++++++++++++
> 3 files changed, 1050 insertions(+)
> create mode 100644 drivers/net/phy/air_en8811h.c
>
> diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig
> index 107880d13d21..bb89cf57de25 100644
> --- a/drivers/net/phy/Kconfig
> +++ b/drivers/net/phy/Kconfig
> @@ -409,6 +409,11 @@ config XILINX_GMII2RGMII
> the Reduced Gigabit Media Independent Interface(RGMII) between
> Ethernet physical media devices and the Gigabit Ethernet controller.
>
> +config AIR_EN8811H_PHY
> + tristate "Drivers for Airoha EN8811H 2.5 Gigabit PHY"
> + help
> + Currently supports the Airoha EN8811H PHY.
> +
> endif # PHYLIB
>
> config MICREL_KS8995MA
> diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile
> index c945ed9bd14b..024a12859e83 100644
> --- a/drivers/net/phy/Makefile
> +++ b/drivers/net/phy/Makefile
> @@ -95,3 +95,4 @@ obj-$(CONFIG_STE10XP) += ste10Xp.o
> obj-$(CONFIG_TERANETICS_PHY) += teranetics.o
> obj-$(CONFIG_VITESSE_PHY) += vitesse.o
> obj-$(CONFIG_XILINX_GMII2RGMII) += xilinx_gmii2rgmii.o
> +obj-$(CONFIG_AIR_EN8811H_PHY) += air_en8811h.o
> diff --git a/drivers/net/phy/air_en8811h.c b/drivers/net/phy/air_en8811h.c
> new file mode 100644
> index 000000000000..8f9105aa2c89
> --- /dev/null
> +++ b/drivers/net/phy/air_en8811h.c
> @@ -0,0 +1,1044 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Driver for Airoha Ethernet PHYs
> + *
> + * Currently supporting the EN8811H.
> + *
> + * Limitations of the EN8811H:
> + * - Forced speed (AN off) is not supported by hardware (!00Mbps)
> + * - Hardware does not report link-partner 2500Base-T advertisement
> + *
> + * 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>
> +
> +#define EN8811H_PHY_ID 0x03a2a411
> +
> +#define EN8811H_MD32_DM "airoha/EthMD32.dm.bin"
> +#define EN8811H_MD32_DSP "airoha/EthMD32.DSP.bin"
> +
> +#define AIR_FW_ADDR_DM 0x00000000
> +#define AIR_FW_ADDR_DSP 0x00100000
> +
> +/* u16 (WORD) component macros */
> +#define MAKEWORD(lo, hi) ((u16)((u8)(lo) | ((u16)(u8)(hi) << 8)))
> +
> +/* u32 (DWORD) component macros */
> +#define LOWORD(d) ((u16)(u32)(d))
> +#define HIWORD(d) ((u16)(((u32)(d)) >> 16))
> +#define MAKEDWORD(lo, hi) ((u32)((u16)(lo) | ((u32)(u16)(hi) << 16)))
> +
> +/* MII Registers */
> +#define AIR_EXT_PAGE_ACCESS 0x1f
> +#define AIR_PHY_PAGE_STANDARD 0x0000
> +#define AIR_PHY_PAGE_EXTENDED_4 0x0004
> +
> +/* MII Registers Page 4*/
> +#define AIR_PBUS_MODE 0x10
> +#define AIR_PBUS_MODE_ADDR_KEEP 0x0000
> +#define AIR_PBUS_MODE_ADDR_INCR BIT(15)
> +#define AIR_PBUS_WR_ADDR_HIGH 0x11
> +#define AIR_PBUS_WR_ADDR_LOW 0x12
> +#define AIR_PBUS_WR_DATA_HIGH 0x13
> +#define AIR_PBUS_WR_DATA_LOW 0x14
> +#define AIR_PBUS_RD_ADDR_HIGH 0x15
> +#define AIR_PBUS_RD_ADDR_LOW 0x16
> +#define AIR_PBUS_RD_DATA_HIGH 0x17
> +#define AIR_PBUS_RD_DATA_LOW 0x18
> +
> +/* Registers on MDIO_MMD_VEND1 */
> +#define EN8811H_PHY_FW_STATUS 0x8009
> +#define EN8811H_PHY_READY 0x02
> +
> +#define AIR_PHY_VENDORCTL1 0x800c
> +#define AIR_PHY_VENDORCTL1_MODE1 0x0
> +#define AIR_PHY_VENDORCTL2 0x800d
> +#define AIR_PHY_VENDORCTL2_MODE1 0x0
> +#define AIR_PHY_VENDORCTL3 0x800e
> +#define AIR_PHY_VENDORCTL3_MODE1 0x1101
> +#define AIR_PHY_VENDORCTL3_INTCLR 0x1100
> +#define AIR_PHY_VENDORCTL4 0x800f
> +#define AIR_PHY_VENDORCTL4_MODE1 0x0002
> +#define AIR_PHY_VENDORCTL4_INTCLR 0x00e4
> +
> +/* Registers on MDIO_MMD_VEND2 */
> +#define AIR_PHY_LED_BCR 0x021
> +#define AIR_PHY_LED_BCR_MODE_MASK GENMASK(1, 0)
> +#define AIR_PHY_LED_BCR_TIME_TEST BIT(2)
> +#define AIR_PHY_LED_BCR_CLK_EN BIT(3)
> +#define AIR_PHY_LED_BCR_EXT_CTRL BIT(15)
> +
> +#define AIR_PHY_LED_DUR_ON 0x022
> +
> +#define AIR_PHY_LED_DUR_BLINK 0x023
> +
> +#define AIR_PHY_LED_ON(i) (0x024 + ((i) * 2))
> +#define AIR_PHY_LED_ON_MASK (GENMASK(6, 0) | BIT(8))
> +#define AIR_PHY_LED_ON_LINK1000 BIT(0)
> +#define AIR_PHY_LED_ON_LINK100 BIT(1)
> +#define AIR_PHY_LED_ON_LINK10 BIT(2)
> +#define AIR_PHY_LED_ON_LINKDOWN BIT(3)
> +#define AIR_PHY_LED_ON_FDX BIT(4) /* Full duplex */
> +#define AIR_PHY_LED_ON_HDX BIT(5) /* Half duplex */
> +#define AIR_PHY_LED_ON_FORCE_ON BIT(6)
> +#define AIR_PHY_LED_ON_LINK2500 BIT(8)
> +#define AIR_PHY_LED_ON_POLARITY BIT(14)
> +#define AIR_PHY_LED_ON_ENABLE BIT(15)
> +
> +#define AIR_PHY_LED_BLINK(i) (0x025 + ((i) * 2))
> +#define AIR_PHY_LED_BLINK_1000TX BIT(0)
> +#define AIR_PHY_LED_BLINK_1000RX BIT(1)
> +#define AIR_PHY_LED_BLINK_100TX BIT(2)
> +#define AIR_PHY_LED_BLINK_100RX BIT(3)
> +#define AIR_PHY_LED_BLINK_10TX BIT(4)
> +#define AIR_PHY_LED_BLINK_10RX BIT(5)
> +#define AIR_PHY_LED_BLINK_COLLISION BIT(6)
> +#define AIR_PHY_LED_BLINK_RX_CRC_ERR BIT(7)
> +#define AIR_PHY_LED_BLINK_RX_IDLE_ERR BIT(8)
> +#define AIR_PHY_LED_BLINK_FORCE_BLINK BIT(9)
> +#define AIR_PHY_LED_BLINK_2500TX BIT(10)
> +#define AIR_PHY_LED_BLINK_2500RX BIT(11)
> +
> +/* Registers on BUCKPBUS */
> +
> +#define EN8811H_FW_VERSION 0x3b3c
> +
> +#define EN8811H_SPEED 0x109d4
> +#define EN8811H_SPEED_100 BIT(2)
> +#define EN8811H_SPEED_1000 BIT(3)
> +#define EN8811H_SPEED_2500 BIT(4)
> +#define EN8811H_SPEED_MASK GENMASK(4, 2)
> +
> +#define EN8811H_POLARITY 0xca0f8
> +#define EN8811H_POLARITY_TX_NORMAL BIT(0)
> +#define EN8811H_POLARITY_RX_REVERSE BIT(1)
> +
> +#define EN8811H_GPIO_MODE 0xcf8b8
> +#define EN8811H_GPIO_MODE_345 (BIT(3) | BIT(4) | BIT(5))
> +
> +#define EN8811H_FW_CTRL_1 0x0f0018
> +#define EN8811H_FW_CTRL_1_START 0x0
> +#define EN8811H_FW_CTRL_1_FINISH 0x1
> +#define EN8811H_FW_CTRL_2 0x800000
> +#define EN8811H_FW_CTRL_2_LOADING BIT(11)
> +
> +#define EN8811H_LED_COUNT 3
> +
> +/* GPIO5 <-> BASE_T_LED0
> + * GPIO4 <-> BASE_T_LED1
> + * GPIO3 <-> BASE_T_LED2
> + *
> + * Default setup suitable for 2 leds connected:
> + * 100M link up triggers led0, only led0 blinking on traffic
> + * 1000M link up triggers led1, only led1 blinking on traffic
> + * 2500M link up triggers led0 and led1, both blinking on traffic
> + * Also suitable for 1 led connected:
> + * any link up triggers led2
> + */
> +#define AIR_DEFAULT_TRIGGER_LED0 (BIT(TRIGGER_NETDEV_LINK_2500) | \
> + BIT(TRIGGER_NETDEV_LINK_100) | \
> + BIT(TRIGGER_NETDEV_RX) | \
> + BIT(TRIGGER_NETDEV_TX))
> +#define AIR_DEFAULT_TRIGGER_LED1 (BIT(TRIGGER_NETDEV_LINK_2500) | \
> + BIT(TRIGGER_NETDEV_LINK_1000) | \
> + BIT(TRIGGER_NETDEV_RX) | \
> + BIT(TRIGGER_NETDEV_TX))
> +#define AIR_DEFAULT_TRIGGER_LED2 BIT(TRIGGER_NETDEV_LINK)
> +
> +struct led {
> + unsigned long rules;
> + unsigned long state;
> +};
> +
> +struct en8811h_priv {
> + struct led led[EN8811H_LED_COUNT];
> +};
> +
> +enum {
> + AIR_PHY_LED_STATE_FORCE_ON,
> + AIR_PHY_LED_STATE_FORCE_BLINK,
> +};
> +
> +enum {
> + AIR_PHY_LED_DUR_BLINK_32M,
> + AIR_PHY_LED_DUR_BLINK_64M,
> + AIR_PHY_LED_DUR_BLINK_128M,
> + AIR_PHY_LED_DUR_BLINK_256M,
> + AIR_PHY_LED_DUR_BLINK_512M,
> + AIR_PHY_LED_DUR_BLINK_1024M,
> +};
> +
> +enum {
> + AIR_LED_DISABLE,
> + AIR_LED_ENABLE,
> +};
> +
> +enum {
> + AIR_ACTIVE_LOW,
> + AIR_ACTIVE_HIGH,
> +};
> +
> +enum {
> + AIR_LED_MODE_DISABLE,
> + AIR_LED_MODE_USER_DEFINE,
> +};
> +
> +#define AIR_PHY_LED_DUR_UNIT 1024
> +#define AIR_PHY_LED_DUR (AIR_PHY_LED_DUR_UNIT << AIR_PHY_LED_DUR_BLINK_64M)
> +
> +static const unsigned long en8811h_led_trig = (BIT(TRIGGER_NETDEV_FULL_DUPLEX) |
> + BIT(TRIGGER_NETDEV_LINK) |
> + BIT(TRIGGER_NETDEV_LINK_10) |
> + BIT(TRIGGER_NETDEV_LINK_100) |
> + BIT(TRIGGER_NETDEV_LINK_1000) |
> + BIT(TRIGGER_NETDEV_LINK_2500) |
> + BIT(TRIGGER_NETDEV_RX) |
> + BIT(TRIGGER_NETDEV_TX));
> +
> +static int __air_buckpbus_reg_write(struct phy_device *phydev,
> + u32 pbus_address, u32 pbus_data)
> +{
> + int ret;
> +
> + ret = __phy_write(phydev, AIR_EXT_PAGE_ACCESS, AIR_PHY_PAGE_EXTENDED_4);
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_PBUS_MODE, AIR_PBUS_MODE_ADDR_KEEP);
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_PBUS_WR_ADDR_HIGH, HIWORD(pbus_address));
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_PBUS_WR_ADDR_LOW, LOWORD(pbus_address));
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_PBUS_WR_DATA_HIGH, HIWORD(pbus_data));
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_PBUS_WR_DATA_LOW, LOWORD(pbus_data));
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_EXT_PAGE_ACCESS, AIR_PHY_PAGE_STANDARD);
> + if (ret < 0)
> + return ret;
> +
> + return 0;
> +}
> +
> +static int air_buckpbus_reg_write(struct phy_device *phydev,
> + u32 pbus_address, u32 pbus_data)
> +{
> + int ret;
> +
> + phy_lock_mdio_bus(phydev);
> + ret = __air_buckpbus_reg_write(phydev, pbus_address, pbus_data);
> + phy_unlock_mdio_bus(phydev);
> +
> + if (ret < 0)
> + phydev_err(phydev, "%s 0x%08x failed: %d\n", __func__,
> + pbus_address, ret);
> +
> + return ret;
> +}
> +
> +static int __air_buckpbus_reg_read(struct phy_device *phydev,
> + u32 pbus_address, u32 *pbus_data)
> +{
> + int pbus_data_low, pbus_data_high;
> + int ret;
> +
> + ret = __phy_write(phydev, AIR_EXT_PAGE_ACCESS, AIR_PHY_PAGE_EXTENDED_4);
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_PBUS_MODE, AIR_PBUS_MODE_ADDR_KEEP);
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_PBUS_RD_ADDR_HIGH, HIWORD(pbus_address));
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_PBUS_RD_ADDR_LOW, LOWORD(pbus_address));
> + if (ret < 0)
> + return ret;
> +
> + pbus_data_high = __phy_read(phydev, AIR_PBUS_RD_DATA_HIGH);
> + if (pbus_data_high < 0)
> + return ret;
> +
> + pbus_data_low = __phy_read(phydev, AIR_PBUS_RD_DATA_LOW);
> + if (pbus_data_low < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_EXT_PAGE_ACCESS, AIR_PHY_PAGE_STANDARD);
> + if (ret < 0)
> + return ret;
> +
> + *pbus_data = MAKEDWORD(pbus_data_low, pbus_data_high);
> + return 0;
> +}
> +
> +static int air_buckpbus_reg_read(struct phy_device *phydev,
> + u32 pbus_address, u32 *pbus_data)
> +{
> + int ret;
> +
> + phy_lock_mdio_bus(phydev);
> + ret = __air_buckpbus_reg_read(phydev, pbus_address, pbus_data);
> + phy_unlock_mdio_bus(phydev);
> +
> + if (ret < 0)
> + phydev_err(phydev, "%s 0x%08x failed: %d\n", __func__,
> + pbus_address, ret);
> +
> + return ret;
> +}
> +
> +static int __air_write_buf(struct phy_device *phydev, u32 address,
> + const struct firmware *fw)
> +{
> + unsigned int offset;
> + int ret;
> + u16 val;
> +
> + ret = __phy_write(phydev, AIR_EXT_PAGE_ACCESS, AIR_PHY_PAGE_EXTENDED_4);
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_PBUS_MODE, AIR_PBUS_MODE_ADDR_INCR);
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_PBUS_WR_ADDR_HIGH, HIWORD(address));
> + if (ret < 0)
> + return ret;
> +
> + ret = __phy_write(phydev, AIR_PBUS_WR_ADDR_LOW, LOWORD(address));
> + if (ret < 0)
> + return ret;
> +
> + for (offset = 0; offset < fw->size; offset += 4) {
> + val = MAKEWORD(fw->data[offset + 2], fw->data[offset + 3]);
> + ret = __phy_write(phydev, AIR_PBUS_WR_DATA_HIGH, val);
> + if (ret < 0)
> + return ret;
> +
> + val = MAKEWORD(fw->data[offset], fw->data[offset + 1]);
> + ret = __phy_write(phydev, AIR_PBUS_WR_DATA_LOW, val);
> + if (ret < 0)
> + return ret;
> + }
> +
> + ret = __phy_write(phydev, AIR_EXT_PAGE_ACCESS, AIR_PHY_PAGE_STANDARD);
> + if (ret < 0)
> + return ret;
> +
> + return 0;
> +}
> +
> +static int air_write_buf(struct phy_device *phydev, u32 address,
> + const struct firmware *fw)
> +{
> + int ret;
> +
> + phy_lock_mdio_bus(phydev);
> + ret = __air_write_buf(phydev, address, fw);
> + phy_unlock_mdio_bus(phydev);
> +
> + if (ret < 0)
> + phydev_err(phydev, "%s 0x%08x failed: %d\n", __func__,
> + address, ret);
> +
> + return ret;
> +}
> +
> +static int en8811h_load_firmware(struct phy_device *phydev)
> +{
> + struct device *dev = &phydev->mdio.dev;
> + const struct firmware *fw1, *fw2;
> + int ret;
> + unsigned int pbus_value;
> +
> + ret = request_firmware_direct(&fw1, EN8811H_MD32_DM, dev);
> + if (ret < 0)
> + return ret;
> +
> + ret = request_firmware_direct(&fw2, EN8811H_MD32_DSP, dev);
> + if (ret < 0)
> + goto en8811h_load_firmware_rel1;
> +
> + ret = air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_1,
> + EN8811H_FW_CTRL_1_START);
> + if (ret < 0)
> + goto en8811h_load_firmware_out;
> +
> + ret = air_buckpbus_reg_read(phydev, EN8811H_FW_CTRL_2, &pbus_value);
> + if (ret < 0)
> + goto en8811h_load_firmware_out;
> + pbus_value |= EN8811H_FW_CTRL_2_LOADING;
> + ret = air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_2, pbus_value);
> + if (ret < 0)
> + goto en8811h_load_firmware_out;
> +
> + ret = air_write_buf(phydev, AIR_FW_ADDR_DM, fw1);
> + if (ret < 0)
> + goto en8811h_load_firmware_out;
> +
> + ret = air_write_buf(phydev, AIR_FW_ADDR_DSP, fw2);
> + if (ret < 0)
> + goto en8811h_load_firmware_out;
> +
> + ret = air_buckpbus_reg_read(phydev, EN8811H_FW_CTRL_2, &pbus_value);
> + if (ret < 0)
> + goto en8811h_load_firmware_out;
> + pbus_value &= ~EN8811H_FW_CTRL_2_LOADING;
> + ret = air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_2, pbus_value);
> + if (ret < 0)
> + goto en8811h_load_firmware_out;
> +
> + ret = air_buckpbus_reg_write(phydev, EN8811H_FW_CTRL_1,
> + EN8811H_FW_CTRL_1_FINISH);
> + if (ret < 0)
> + goto en8811h_load_firmware_out;
> +
> + ret = 0;
> +
> +en8811h_load_firmware_out:
> + release_firmware(fw2);
> +
> +en8811h_load_firmware_rel1:
> + release_firmware(fw1);
> +
> + return ret;
> +}
> +
> +static int air_hw_led_on_set(struct phy_device *phydev, u8 index, bool on)
> +{
> + struct en8811h_priv *priv = phydev->priv;
> + bool changed;
> +
> + if (index >= EN8811H_LED_COUNT)
> + return -EINVAL;
> +
> + if (on)
> + changed = !test_and_set_bit(AIR_PHY_LED_STATE_FORCE_ON,
> + &priv->led[index].state);
> + else
> + changed = !!test_and_clear_bit(AIR_PHY_LED_STATE_FORCE_ON,
> + &priv->led[index].state);
> +
> + changed |= (priv->led[index].rules != 0);
> +
> + if (changed)
> + return phy_modify_mmd(phydev, MDIO_MMD_VEND2,
> + AIR_PHY_LED_ON(index),
> + AIR_PHY_LED_ON_MASK,
> + on ? AIR_PHY_LED_ON_FORCE_ON : 0);
> +
> + return 0;
> +}
> +
> +static int air_hw_led_blink_set(struct phy_device *phydev, u8 index,
> + bool blinking)
> +{
> + struct en8811h_priv *priv = phydev->priv;
> + bool changed;
> +
> + if (index >= EN8811H_LED_COUNT)
> + return -EINVAL;
> +
> + if (blinking)
> + changed = !test_and_set_bit(AIR_PHY_LED_STATE_FORCE_BLINK,
> + &priv->led[index].state);
> + else
> + changed = !!test_and_clear_bit(AIR_PHY_LED_STATE_FORCE_BLINK,
> + &priv->led[index].state);
> +
> + changed |= (priv->led[index].rules != 0);
> +
> + if (changed)
> + return phy_write_mmd(phydev, MDIO_MMD_VEND2,
> + AIR_PHY_LED_BLINK(index),
> + blinking ?
> + AIR_PHY_LED_BLINK_FORCE_BLINK : 0);
> + else
> + return 0;
> +}
> +
> +static int air_led_blink_set(struct phy_device *phydev, u8 index,
> + unsigned long *delay_on,
> + unsigned long *delay_off)
> +{
> + struct en8811h_priv *priv = phydev->priv;
> + bool blinking = false;
> + int err;
> +
> + if (index >= EN8811H_LED_COUNT)
> + return -EINVAL;
> +
> + if (delay_on && delay_off && (*delay_on > 0) && (*delay_off > 0)) {
> + blinking = true;
> + *delay_on = 50;
> + *delay_off = 50;
> + }
> +
> + err = air_hw_led_blink_set(phydev, index, blinking);
> + if (err)
> + return err;
> +
> + /* led-blink set, so switch led-on off */
> + err = air_hw_led_on_set(phydev, index, false);
> + if (err)
> + return err;
> +
> + /* hw-control is off*/
> + if (!!test_bit(AIR_PHY_LED_STATE_FORCE_BLINK, &priv->led[index].state))
> + priv->led[index].rules = 0;
> +
> + return 0;
> +}
> +
> +static int air_led_brightness_set(struct phy_device *phydev, u8 index,
> + enum led_brightness value)
> +{
> + struct en8811h_priv *priv = phydev->priv;
> + int err;
> +
> + if (index >= EN8811H_LED_COUNT)
> + return -EINVAL;
> +
> + /* led-on set, so switch led-blink off */
> + err = air_hw_led_blink_set(phydev, index, false);
> + if (err)
> + return err;
> +
> + err = air_hw_led_on_set(phydev, index, (value != LED_OFF));
> + if (err)
> + return err;
> +
> + /* hw-control is off */
> + if (!!test_bit(AIR_PHY_LED_STATE_FORCE_ON, &priv->led[index].state))
> + priv->led[index].rules = 0;
> +
> + return 0;
> +}
> +
> +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;
> +
> + priv->led[index].rules = rules;
> +
> + if (index >= EN8811H_LED_COUNT)
> + return -EINVAL;
> +
> + if (rules & (BIT(TRIGGER_NETDEV_LINK_10) | BIT(TRIGGER_NETDEV_LINK))) {
> + on |= AIR_PHY_LED_ON_LINK10;
> + if (rules & BIT(TRIGGER_NETDEV_RX))
> + blink |= AIR_PHY_LED_BLINK_10RX;
> + if (rules & BIT(TRIGGER_NETDEV_TX))
> + blink |= AIR_PHY_LED_BLINK_10TX;
> + }
> +
> + if (rules & (BIT(TRIGGER_NETDEV_LINK_100) | BIT(TRIGGER_NETDEV_LINK))) {
> + on |= AIR_PHY_LED_ON_LINK100;
> + if (rules & BIT(TRIGGER_NETDEV_RX))
> + blink |= AIR_PHY_LED_BLINK_100RX;
> + if (rules & BIT(TRIGGER_NETDEV_TX))
> + blink |= AIR_PHY_LED_BLINK_100TX;
> + }
> +
> + if (rules & (BIT(TRIGGER_NETDEV_LINK_1000) | BIT(TRIGGER_NETDEV_LINK))) {
> + on |= AIR_PHY_LED_ON_LINK1000;
> + if (rules & BIT(TRIGGER_NETDEV_RX))
> + blink |= AIR_PHY_LED_BLINK_1000RX;
> + if (rules & BIT(TRIGGER_NETDEV_TX))
> + blink |= AIR_PHY_LED_BLINK_1000TX;
> + }
> +
> + 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_2500RX;
> + if (rules & BIT(TRIGGER_NETDEV_TX))
> + blink |= AIR_PHY_LED_BLINK_2500TX;
> + }
> +
> + if (on == 0) {
> + 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 (rules & BIT(TRIGGER_NETDEV_FULL_DUPLEX))
> + on |= AIR_PHY_LED_ON_FDX;
> +
> + if (rules & BIT(TRIGGER_NETDEV_HALF_DUPLEX))
> + on |= AIR_PHY_LED_ON_HDX;
> +
> + 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)
> +{
> + int cl45_data;
> + int err;
> +
> + if (index >= EN8811H_LED_COUNT)
> + return -EINVAL;
> +
> + cl45_data = phy_read_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_ON(index));
> + if (cl45_data < 0)
> + return cl45_data;
> +
> + if (state == AIR_LED_ENABLE)
> + cl45_data |= AIR_PHY_LED_ON_ENABLE;
> + else
> + cl45_data &= ~AIR_PHY_LED_ON_ENABLE;
> +
> + if (pol == AIR_ACTIVE_HIGH)
> + cl45_data |= AIR_PHY_LED_ON_POLARITY;
> + else
> + cl45_data &= ~AIR_PHY_LED_ON_POLARITY;
> +
> + err = phy_write_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_ON(index),
> + cl45_data);
> + if (err < 0)
> + return err;
> +
> + return 0;
> +}
> +
> +static int air_leds_init(struct phy_device *phydev, int num, int dur, int mode)
> +{
> + struct en8811h_priv *priv = phydev->priv;
> + int ret, i;
> + int cl45_data = dur;
> +
> + ret = phy_write_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_DUR_BLINK,
> + cl45_data);
> + if (ret < 0)
> + return ret;
> +
> + cl45_data >>= 1;
> + ret = phy_write_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_DUR_ON,
> + cl45_data);
> + if (ret < 0)
> + return ret;
> +
> + cl45_data = phy_read_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_BCR);
> + if (cl45_data < 0)
> + return cl45_data;
> +
> + switch (mode) {
> + case AIR_LED_MODE_DISABLE:
> + cl45_data &= ~AIR_PHY_LED_BCR_EXT_CTRL;
> + cl45_data &= ~AIR_PHY_LED_BCR_MODE_MASK;
> + break;
> + case AIR_LED_MODE_USER_DEFINE:
> + cl45_data |= AIR_PHY_LED_BCR_EXT_CTRL;
> + cl45_data |= AIR_PHY_LED_BCR_CLK_EN;
> + break;
> + default:
> + phydev_err(phydev, "LED mode %d is not supported\n", mode);
> + return -EINVAL;
> + }
> +
> + ret = phy_write_mmd(phydev, MDIO_MMD_VEND2, AIR_PHY_LED_BCR, cl45_data);
> + if (ret < 0)
> + return ret;
> +
> + for (i = 0; i < num; ++i) {
> + ret = air_led_init(phydev, i, AIR_LED_ENABLE, AIR_ACTIVE_HIGH);
> + if (ret < 0) {
> + phydev_err(phydev, "LED%d init failed: %d\n", i, ret);
> + return ret;
> + }
> + air_led_hw_control_set(phydev, i, priv->led[i].rules);
> + }
> +
> + return 0;
> +}
> +
> +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)
> +{
> + struct en8811h_priv *priv;
> +
> + priv = devm_kzalloc(&phydev->mdio.dev, sizeof(struct en8811h_priv),
> + GFP_KERNEL);
> + if (!priv)
> + return -ENOMEM;
> +
> + priv->led[0].rules = AIR_DEFAULT_TRIGGER_LED0;
> + priv->led[1].rules = AIR_DEFAULT_TRIGGER_LED1;
> + priv->led[2].rules = AIR_DEFAULT_TRIGGER_LED2;
> +
> + phydev->priv = priv;
> +
> + /* MDIO_DEVS1/2 empty, so set mmds_present bits here */
> + phydev->c45_ids.mmds_present |= MDIO_DEVS_PMAPMD | MDIO_DEVS_AN;
> +
> + return 0;
> +}
> +
> +static int en8811h_config_init(struct phy_device *phydev)
> +{
> + int ret, pollret, reg_value;
> + unsigned int pbus_value;
> + struct device *dev = &phydev->mdio.dev;
> +
> + ret = en8811h_load_firmware(phydev);
> + if (ret) {
> + phydev_err(phydev, "Load firmware failed: %d\n", ret);
> + return ret;
> + }
> +
> + /* Because of mdio-lock, may have to wait for multiple loads */
> + pollret = phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1,
> + EN8811H_PHY_FW_STATUS, reg_value,
> + reg_value == EN8811H_PHY_READY,
> + 20000, 7500000, true);
> +
> + ret = air_buckpbus_reg_read(phydev, EN8811H_FW_VERSION, &pbus_value);
> + if (ret < 0)
> + return ret;
> + phydev_info(phydev, "MD32 firmware version: %08x\n", pbus_value);
> +
> + if (pollret) {
> + phydev_err(phydev, "Firmware not ready: 0x%x\n", reg_value);
> + return -ENODEV;
> + }
> +
> + /* Select mode 1, the only mode supported */
> + ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_VENDORCTL1,
> + AIR_PHY_VENDORCTL1_MODE1);
> + if (ret < 0)
> + return ret;
> + ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_VENDORCTL2,
> + AIR_PHY_VENDORCTL2_MODE1);
> + if (ret < 0)
> + return ret;
> + ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_VENDORCTL3,
> + AIR_PHY_VENDORCTL3_MODE1);
> + if (ret < 0)
> + return ret;
> + ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_VENDORCTL4,
> + AIR_PHY_VENDORCTL4_MODE1);
> + if (ret < 0)
> + return ret;
> +
> + /* Serdes polarity */
> + ret = air_buckpbus_reg_read(phydev, EN8811H_POLARITY, &pbus_value);
> + if (ret < 0)
> + return ret;
> + if (device_property_read_bool(dev, "airoha,rx-pol-reverse"))
> + pbus_value |= EN8811H_POLARITY_RX_REVERSE;
> + else
> + pbus_value &= ~EN8811H_POLARITY_RX_REVERSE;
> + if (device_property_read_bool(dev, "airoha,tx-pol-reverse"))
> + pbus_value &= ~EN8811H_POLARITY_TX_NORMAL;
> + else
> + pbus_value |= EN8811H_POLARITY_TX_NORMAL;
> + ret = air_buckpbus_reg_write(phydev, EN8811H_POLARITY, pbus_value);
> + if (ret < 0)
> + return ret;
> +
> + ret = air_leds_init(phydev, EN8811H_LED_COUNT, AIR_PHY_LED_DUR,
> + AIR_LED_MODE_USER_DEFINE);
> + if (ret < 0) {
> + phydev_err(phydev, "Failed to initialize leds: %d\n", ret);
> + return ret;
> + }
> +
> + ret = air_buckpbus_reg_read(phydev, EN8811H_GPIO_MODE, &pbus_value);
> + if (ret < 0)
> + return ret;
> + pbus_value |= EN8811H_GPIO_MODE_345;
> + ret = air_buckpbus_reg_write(phydev, EN8811H_GPIO_MODE, pbus_value);
> + if (ret < 0)
> + return ret;
> +
> + return 0;
> +}
> +
> +static int en8811h_get_features(struct phy_device *phydev)
> +{
> + linkmode_set_bit_array(phy_basic_ports_array,
> + ARRAY_SIZE(phy_basic_ports_array),
> + phydev->supported);
> +
> + return genphy_c45_pma_read_abilities(phydev);
> +}
> +
> +static int en8811h_get_rate_matching(struct phy_device *phydev,
> + phy_interface_t iface)
> +{
> + return RATE_MATCH_PAUSE;
> +}
> +
> +static int en8811h_config_aneg(struct phy_device *phydev)
> +{
> + u32 adv;
> + bool changed = false;
> + int ret;
> +
> + phydev_dbg(phydev, "%s: advertising=%*pb\n", __func__,
> + __ETHTOOL_LINK_MODE_MASK_NBITS, phydev->advertising);
> +
> + if (phydev->autoneg == AUTONEG_DISABLE)
> + return genphy_c45_pma_setup_forced(phydev);
> +
> + ret = genphy_c45_an_config_aneg(phydev);
> + if (ret < 0)
> + return ret;
> + if (ret > 0)
> + changed = true;
> +
> + /* Clause 45 has no standardized support for 1000BaseT, therefore
> + * use Clause 22 registers for this mode.
> + */
> + adv = linkmode_adv_to_mii_ctrl1000_t(phydev->advertising);
> + ret = phy_modify_changed(phydev, MII_CTRL1000, ADVERTISE_1000FULL, adv);
> + if (ret < 0)
> + return ret;
> + if (ret > 0)
> + changed = true;
> +
> + return genphy_c45_check_and_restart_aneg(phydev, changed);
> +}
> +
> +int en8811h_c45_read_link(struct phy_device *phydev)
> +{
> + int val;
> +
> + /* Read link state from known reliable register (latched) */
> +
> + if (!phy_polling_mode(phydev) || !phydev->link) {
> + val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
> + if (val < 0)
> + return val;
> + phydev->link = !!(val & MDIO_STAT1_LSTATUS);
> +
> + if (phydev->link)
> + return 0;
> + }
> +
> + val = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
> + if (val < 0)
> + return val;
> + phydev->link = !!(val & MDIO_STAT1_LSTATUS);
> +
> + return 0;
> +}
> +
> +static int en8811h_read_status(struct phy_device *phydev)
> +{
> + int ret, lpagb;
> + unsigned int pbus_value;
> +
> + ret = en8811h_c45_read_link(phydev);
> + if (ret)
> + return ret;
> +
> + phydev->speed = SPEED_UNKNOWN;
> + phydev->duplex = DUPLEX_UNKNOWN;
> + phydev->pause = 0;
> + phydev->asym_pause = 0;
> +
> + if (phydev->autoneg == AUTONEG_ENABLE) {
> + ret = genphy_c45_read_lpa(phydev);
> + if (ret)
> + return ret;
> +
> + /* Clause 45 has no standardized support for 1000BaseT,
> + * therefore use Clause 22 registers for this mode.
> + */
> + lpagb = phy_read(phydev, MII_STAT1000);
> + if (lpagb < 0)
> + return lpagb;
> + mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising, lpagb);
> +
> + phy_resolve_aneg_pause(phydev);
> + } else {
> + linkmode_zero(phydev->lp_advertising);
> + }
> +
> + if (!phydev->link)
> + return 0;
> +
> + /* Get real speed from vendor register */
> + ret = air_buckpbus_reg_read(phydev, EN8811H_SPEED, &pbus_value);
> + if (ret < 0)
> + return ret;
> + switch (pbus_value & EN8811H_SPEED_MASK) {
> + case EN8811H_SPEED_2500:
> + phydev->speed = SPEED_2500;
> + /* BUG in PHY: MDIO_AN_10GBT_STAT_LP2_5G does not get set
> + * Assume link partner advertised it
> + */
> + linkmode_set_bit(ETHTOOL_LINK_MODE_2500baseT_Full_BIT,
> + phydev->lp_advertising);
> + break;
> + case EN8811H_SPEED_1000:
> + phydev->speed = SPEED_1000;
> + break;
> + case EN8811H_SPEED_100:
> + phydev->speed = SPEED_100;
> + break;
> + }
> +
> + /* Only supports full duplex */
> + phydev->duplex = DUPLEX_FULL;
> +
> + return 0;
> +}
> +
> +static int en8811h_clear_intr(struct phy_device *phydev)
> +{
> + int ret;
> +
> + ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_VENDORCTL3,
> + AIR_PHY_VENDORCTL3_INTCLR);
> + if (ret < 0)
> + return ret;
> +
> + ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, AIR_PHY_VENDORCTL4,
> + AIR_PHY_VENDORCTL4_INTCLR);
> + if (ret < 0)
> + return ret;
> +
> + return 0;
> +}
> +
> +static irqreturn_t en8811h_handle_interrupt(struct phy_device *phydev)
> +{
> + int ret;
> +
> + ret = en8811h_clear_intr(phydev);
> + if (ret < 0) {
> + phy_error(phydev);
> + return IRQ_NONE;
> + }
> +
> + phy_trigger_machine(phydev);
> +
> + return IRQ_HANDLED;
> +}
> +
> +static struct phy_driver en8811h_driver[] = {
> +{
> + PHY_ID_MATCH_MODEL(EN8811H_PHY_ID),
> + .name = "Airoha EN8811H",
> + .probe = en8811h_probe,
> + .get_features = en8811h_get_features,
> + .config_init = en8811h_config_init,
> + .get_rate_matching = en8811h_get_rate_matching,
> + .config_aneg = en8811h_config_aneg,
> + .read_status = en8811h_read_status,
> + .config_intr = en8811h_clear_intr,
> + .handle_interrupt = en8811h_handle_interrupt,
> + .led_hw_is_supported = en8811h_led_hw_is_supported,
> + .led_blink_set = air_led_blink_set,
> + .led_brightness_set = air_led_brightness_set,
> + .led_hw_control_set = air_led_hw_control_set,
> + .led_hw_control_get = air_led_hw_control_get,
> +} };
> +
> +int __init en8811h_phy_driver_register(void)
> +{
> + int ret;
> +
> + ret = phy_driver_register(en8811h_driver, THIS_MODULE);
> + 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);
> +
Why don't you use the module_phy_driver() macro?
> +static struct mdio_device_id __maybe_unused en8811h_tbl[] = {
> + { PHY_ID_MATCH_MODEL(EN8811H_PHY_ID) },
> + { }
> +};
> +MODULE_DEVICE_TABLE(mdio, en8811h_tbl);
> +MODULE_FIRMWARE(EN8811H_MD32_DM);
> +MODULE_FIRMWARE(EN8811H_MD32_DSP);
> +
> +MODULE_DESCRIPTION("Airoha EN8811H PHY drivers");
> +MODULE_AUTHOR("Airoha");
> +MODULE_AUTHOR("Eric Woudstra <ericwouds@...il.com>");
> +MODULE_LICENSE("GPL");
> +
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