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lede-Heleguo/target/linux/generic/backport-6.12/782-05-v6.16-net-phy-Add-support-for-Aeonsemi-AS21xxx-PHYs.patch
Christian Marangi 0ac149ffc9 generic: backport support for Aeonsemi PHY 
Backport support for Aeonsemi AS121xxx PHY. The PHY require dedicated
firmware to be loaded to correctly work and support a big family of
Aeonsemi PHY that provide from 1G to 10G speed.

Automatically refresh all affected patch and file (rtl PHY).

Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
2025-10-04 20:10:01 +08:00

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From 830877d89edcd834e4b4d0fcc021ff619d89505e Mon Sep 17 00:00:00 2001
From: Christian Marangi <ansuelsmth@gmail.com>
Date: Sat, 17 May 2025 22:13:49 +0200
Subject: [PATCH 5/5] net: phy: Add support for Aeonsemi AS21xxx PHYs
Add support for Aeonsemi AS21xxx 10G C45 PHYs. These PHYs integrate
an IPC to setup some configuration and require special handling to
sync with the parity bit. The parity bit is a way the IPC use to
follow correct order of command sent.
Supported PHYs AS21011JB1, AS21011PB1, AS21010JB1, AS21010PB1,
AS21511JB1, AS21511PB1, AS21510JB1, AS21510PB1, AS21210JB1,
AS21210PB1 that all register with the PHY ID 0x7500 0x7510
before the firmware is loaded.
They all support up to 5 LEDs with various HW mode supported.
While implementing it was found some strange coincidence with using the
same logic for implementing C22 in MMD regs in Broadcom PHYs.
For reference here the AS21xxx PHY name logic:
AS21x1xxB1
^ ^^
| |J: Supports SyncE/PTP
| |P: No SyncE/PTP support
| 1: Supports 2nd Serdes
| 2: Not 2nd Serdes support
0: 10G, 5G, 2.5G
5: 5G, 2.5G
2: 2.5G
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Link: https://patch.msgid.link/20250517201353.5137-6-ansuelsmth@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
MAINTAINERS | 6 +
drivers/net/phy/Kconfig | 12 +
drivers/net/phy/Makefile | 1 +
drivers/net/phy/as21xxx.c | 1087 +++++++++++++++++++++++++++++++++++++
4 files changed, 1106 insertions(+)
create mode 100644 drivers/net/phy/as21xxx.c
--- a/drivers/net/phy/Kconfig
+++ b/drivers/net/phy/Kconfig
@@ -79,6 +79,18 @@ config SFP
comment "MII PHY device drivers"
+config AS21XXX_PHY
+ tristate "Aeonsemi AS21xxx PHYs"
+ help
+ Currently supports the Aeonsemi AS21xxx PHY.
+
+ These are C45 PHYs 10G that require all a generic firmware.
+
+ Supported PHYs AS21011JB1, AS21011PB1, AS21010JB1, AS21010PB1,
+ AS21511JB1, AS21511PB1, AS21510JB1, AS21510PB1, AS21210JB1,
+ AS21210PB1 that all register with the PHY ID 0x7500 0x7500
+ before the firmware is loaded.
+
config AIR_EN8811H_PHY
tristate "Airoha EN8811H 2.5 Gigabit PHY"
help
--- a/drivers/net/phy/Makefile
+++ b/drivers/net/phy/Makefile
@@ -39,6 +39,7 @@ obj-$(CONFIG_AIR_EN8811H_PHY) += air_e
obj-$(CONFIG_AMD_PHY) += amd.o
obj-$(CONFIG_AMCC_QT2025_PHY) += qt2025.o
obj-$(CONFIG_AQUANTIA_PHY) += aquantia/
+obj-$(CONFIG_AS21XXX_PHY) += as21xxx.o
ifdef CONFIG_AX88796B_RUST_PHY
obj-$(CONFIG_AX88796B_PHY) += ax88796b_rust.o
else
--- /dev/null
+++ b/drivers/net/phy/as21xxx.c
@@ -0,0 +1,1087 @@
+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Aeonsemi AS21XXxX PHY Driver
+ *
+ * Author: Christian Marangi <ansuelsmth@gmail.com>
+ */
+
+#include <linux/bitfield.h>
+#include <linux/firmware.h>
+#include <linux/module.h>
+#include <linux/of.h>
+#include <linux/phy.h>
+
+#define VEND1_GLB_REG_CPU_RESET_ADDR_LO_BASEADDR 0x3
+#define VEND1_GLB_REG_CPU_RESET_ADDR_HI_BASEADDR 0x4
+
+#define VEND1_GLB_REG_CPU_CTRL 0xe
+#define VEND1_GLB_CPU_CTRL_MASK GENMASK(4, 0)
+#define VEND1_GLB_CPU_CTRL_LED_POLARITY_MASK GENMASK(12, 8)
+#define VEND1_GLB_CPU_CTRL_LED_POLARITY(_n) FIELD_PREP(VEND1_GLB_CPU_CTRL_LED_POLARITY_MASK, \
+ BIT(_n))
+
+#define VEND1_FW_START_ADDR 0x100
+
+#define VEND1_GLB_REG_MDIO_INDIRECT_ADDRCMD 0x101
+#define VEND1_GLB_REG_MDIO_INDIRECT_LOAD 0x102
+
+#define VEND1_GLB_REG_MDIO_INDIRECT_STATUS 0x103
+
+#define VEND1_PTP_CLK 0x142
+#define VEND1_PTP_CLK_EN BIT(6)
+
+/* 5 LED at step of 0x20
+ * FE: Fast-Ethernet (10/100)
+ * GE: Gigabit-Ethernet (1000)
+ * NG: New-Generation (2500/5000/10000)
+ */
+#define VEND1_LED_REG(_n) (0x1800 + ((_n) * 0x10))
+#define VEND1_LED_REG_A_EVENT GENMASK(15, 11)
+#define VEND1_LED_CONF 0x1881
+#define VEND1_LED_CONFG_BLINK GENMASK(7, 0)
+
+#define VEND1_SPEED_STATUS 0x4002
+#define VEND1_SPEED_MASK GENMASK(7, 0)
+#define VEND1_SPEED_10000 FIELD_PREP_CONST(VEND1_SPEED_MASK, 0x3)
+#define VEND1_SPEED_5000 FIELD_PREP_CONST(VEND1_SPEED_MASK, 0x5)
+#define VEND1_SPEED_2500 FIELD_PREP_CONST(VEND1_SPEED_MASK, 0x9)
+#define VEND1_SPEED_1000 FIELD_PREP_CONST(VEND1_SPEED_MASK, 0x10)
+#define VEND1_SPEED_100 FIELD_PREP_CONST(VEND1_SPEED_MASK, 0x20)
+#define VEND1_SPEED_10 FIELD_PREP_CONST(VEND1_SPEED_MASK, 0x0)
+
+#define VEND1_IPC_CMD 0x5801
+#define AEON_IPC_CMD_PARITY BIT(15)
+#define AEON_IPC_CMD_SIZE GENMASK(10, 6)
+#define AEON_IPC_CMD_OPCODE GENMASK(5, 0)
+
+#define IPC_CMD_NOOP 0x0 /* Do nothing */
+#define IPC_CMD_INFO 0x1 /* Get Firmware Version */
+#define IPC_CMD_SYS_CPU 0x2 /* SYS_CPU */
+#define IPC_CMD_BULK_DATA 0xa /* Pass bulk data in ipc registers. */
+#define IPC_CMD_BULK_WRITE 0xc /* Write bulk data to memory */
+#define IPC_CMD_CFG_PARAM 0x1a /* Write config parameters to memory */
+#define IPC_CMD_NG_TESTMODE 0x1b /* Set NG test mode and tone */
+#define IPC_CMD_TEMP_MON 0x15 /* Temperature monitoring function */
+#define IPC_CMD_SET_LED 0x23 /* Set led */
+
+#define VEND1_IPC_STS 0x5802
+#define AEON_IPC_STS_PARITY BIT(15)
+#define AEON_IPC_STS_SIZE GENMASK(14, 10)
+#define AEON_IPC_STS_OPCODE GENMASK(9, 4)
+#define AEON_IPC_STS_STATUS GENMASK(3, 0)
+#define AEON_IPC_STS_STATUS_RCVD FIELD_PREP_CONST(AEON_IPC_STS_STATUS, 0x1)
+#define AEON_IPC_STS_STATUS_PROCESS FIELD_PREP_CONST(AEON_IPC_STS_STATUS, 0x2)
+#define AEON_IPC_STS_STATUS_SUCCESS FIELD_PREP_CONST(AEON_IPC_STS_STATUS, 0x4)
+#define AEON_IPC_STS_STATUS_ERROR FIELD_PREP_CONST(AEON_IPC_STS_STATUS, 0x8)
+#define AEON_IPC_STS_STATUS_BUSY FIELD_PREP_CONST(AEON_IPC_STS_STATUS, 0xe)
+#define AEON_IPC_STS_STATUS_READY FIELD_PREP_CONST(AEON_IPC_STS_STATUS, 0xf)
+
+#define VEND1_IPC_DATA0 0x5808
+#define VEND1_IPC_DATA1 0x5809
+#define VEND1_IPC_DATA2 0x580a
+#define VEND1_IPC_DATA3 0x580b
+#define VEND1_IPC_DATA4 0x580c
+#define VEND1_IPC_DATA5 0x580d
+#define VEND1_IPC_DATA6 0x580e
+#define VEND1_IPC_DATA7 0x580f
+#define VEND1_IPC_DATA(_n) (VEND1_IPC_DATA0 + (_n))
+
+/* Sub command of CMD_INFO */
+#define IPC_INFO_VERSION 0x1
+
+/* Sub command of CMD_SYS_CPU */
+#define IPC_SYS_CPU_REBOOT 0x3
+#define IPC_SYS_CPU_IMAGE_OFST 0x4
+#define IPC_SYS_CPU_IMAGE_CHECK 0x5
+#define IPC_SYS_CPU_PHY_ENABLE 0x6
+
+/* Sub command of CMD_CFG_PARAM */
+#define IPC_CFG_PARAM_DIRECT 0x4
+
+/* CFG DIRECT sub command */
+#define IPC_CFG_PARAM_DIRECT_NG_PHYCTRL 0x1
+#define IPC_CFG_PARAM_DIRECT_CU_AN 0x2
+#define IPC_CFG_PARAM_DIRECT_SDS_PCS 0x3
+#define IPC_CFG_PARAM_DIRECT_AUTO_EEE 0x4
+#define IPC_CFG_PARAM_DIRECT_SDS_PMA 0x5
+#define IPC_CFG_PARAM_DIRECT_DPC_RA 0x6
+#define IPC_CFG_PARAM_DIRECT_DPC_PKT_CHK 0x7
+#define IPC_CFG_PARAM_DIRECT_DPC_SDS_WAIT_ETH 0x8
+#define IPC_CFG_PARAM_DIRECT_WDT 0x9
+#define IPC_CFG_PARAM_DIRECT_SDS_RESTART_AN 0x10
+#define IPC_CFG_PARAM_DIRECT_TEMP_MON 0x11
+#define IPC_CFG_PARAM_DIRECT_WOL 0x12
+
+/* Sub command of CMD_TEMP_MON */
+#define IPC_CMD_TEMP_MON_GET 0x4
+
+#define AS21XXX_MDIO_AN_C22 0xffe0
+
+#define PHY_ID_AS21XXX 0x75009410
+/* AS21xxx ID Legend
+ * AS21x1xxB1
+ * ^ ^^
+ * | |J: Supports SyncE/PTP
+ * | |P: No SyncE/PTP support
+ * | 1: Supports 2nd Serdes
+ * | 2: Not 2nd Serdes support
+ * 0: 10G, 5G, 2.5G
+ * 5: 5G, 2.5G
+ * 2: 2.5G
+ */
+#define PHY_ID_AS21011JB1 0x75009402
+#define PHY_ID_AS21011PB1 0x75009412
+#define PHY_ID_AS21010JB1 0x75009422
+#define PHY_ID_AS21010PB1 0x75009432
+#define PHY_ID_AS21511JB1 0x75009442
+#define PHY_ID_AS21511PB1 0x75009452
+#define PHY_ID_AS21510JB1 0x75009462
+#define PHY_ID_AS21510PB1 0x75009472
+#define PHY_ID_AS21210JB1 0x75009482
+#define PHY_ID_AS21210PB1 0x75009492
+#define PHY_VENDOR_AEONSEMI 0x75009400
+
+#define AEON_MAX_LEDS 5
+#define AEON_IPC_DELAY 10000
+#define AEON_IPC_TIMEOUT (AEON_IPC_DELAY * 100)
+#define AEON_IPC_DATA_NUM_REGISTERS 8
+#define AEON_IPC_DATA_MAX (AEON_IPC_DATA_NUM_REGISTERS * sizeof(u16))
+
+#define AEON_BOOT_ADDR 0x1000
+#define AEON_CPU_BOOT_ADDR 0x2000
+#define AEON_CPU_CTRL_FW_LOAD (BIT(4) | BIT(2) | BIT(1) | BIT(0))
+#define AEON_CPU_CTRL_FW_START BIT(0)
+
+enum as21xxx_led_event {
+ VEND1_LED_REG_A_EVENT_ON_10 = 0x0,
+ VEND1_LED_REG_A_EVENT_ON_100,
+ VEND1_LED_REG_A_EVENT_ON_1000,
+ VEND1_LED_REG_A_EVENT_ON_2500,
+ VEND1_LED_REG_A_EVENT_ON_5000,
+ VEND1_LED_REG_A_EVENT_ON_10000,
+ VEND1_LED_REG_A_EVENT_ON_FE_GE,
+ VEND1_LED_REG_A_EVENT_ON_NG,
+ VEND1_LED_REG_A_EVENT_ON_FULL_DUPLEX,
+ VEND1_LED_REG_A_EVENT_ON_COLLISION,
+ VEND1_LED_REG_A_EVENT_BLINK_TX,
+ VEND1_LED_REG_A_EVENT_BLINK_RX,
+ VEND1_LED_REG_A_EVENT_BLINK_ACT,
+ VEND1_LED_REG_A_EVENT_ON_LINK,
+ VEND1_LED_REG_A_EVENT_ON_LINK_BLINK_ACT,
+ VEND1_LED_REG_A_EVENT_ON_LINK_BLINK_RX,
+ VEND1_LED_REG_A_EVENT_ON_FE_GE_BLINK_ACT,
+ VEND1_LED_REG_A_EVENT_ON_NG_BLINK_ACT,
+ VEND1_LED_REG_A_EVENT_ON_NG_BLINK_FE_GE,
+ VEND1_LED_REG_A_EVENT_ON_FD_BLINK_COLLISION,
+ VEND1_LED_REG_A_EVENT_ON,
+ VEND1_LED_REG_A_EVENT_OFF,
+};
+
+struct as21xxx_led_pattern_info {
+ unsigned int pattern;
+ u16 val;
+};
+
+struct as21xxx_priv {
+ bool parity_status;
+ /* Protect concurrent IPC access */
+ struct mutex ipc_lock;
+};
+
+static struct as21xxx_led_pattern_info as21xxx_led_supported_pattern[] = {
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_10),
+ .val = VEND1_LED_REG_A_EVENT_ON_10
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_100),
+ .val = VEND1_LED_REG_A_EVENT_ON_100
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_1000),
+ .val = VEND1_LED_REG_A_EVENT_ON_1000
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_2500),
+ .val = VEND1_LED_REG_A_EVENT_ON_2500
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_5000),
+ .val = VEND1_LED_REG_A_EVENT_ON_5000
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_10000),
+ .val = VEND1_LED_REG_A_EVENT_ON_10000
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK),
+ .val = VEND1_LED_REG_A_EVENT_ON_LINK
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_10) |
+ BIT(TRIGGER_NETDEV_LINK_100) |
+ BIT(TRIGGER_NETDEV_LINK_1000),
+ .val = VEND1_LED_REG_A_EVENT_ON_FE_GE
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_2500) |
+ BIT(TRIGGER_NETDEV_LINK_5000) |
+ BIT(TRIGGER_NETDEV_LINK_10000),
+ .val = VEND1_LED_REG_A_EVENT_ON_NG
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_FULL_DUPLEX),
+ .val = VEND1_LED_REG_A_EVENT_ON_FULL_DUPLEX
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_TX),
+ .val = VEND1_LED_REG_A_EVENT_BLINK_TX
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_RX),
+ .val = VEND1_LED_REG_A_EVENT_BLINK_RX
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_TX) |
+ BIT(TRIGGER_NETDEV_RX),
+ .val = VEND1_LED_REG_A_EVENT_BLINK_ACT
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_10) |
+ BIT(TRIGGER_NETDEV_LINK_100) |
+ BIT(TRIGGER_NETDEV_LINK_1000) |
+ BIT(TRIGGER_NETDEV_LINK_2500) |
+ BIT(TRIGGER_NETDEV_LINK_5000) |
+ BIT(TRIGGER_NETDEV_LINK_10000),
+ .val = VEND1_LED_REG_A_EVENT_ON_LINK
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_10) |
+ BIT(TRIGGER_NETDEV_LINK_100) |
+ BIT(TRIGGER_NETDEV_LINK_1000) |
+ BIT(TRIGGER_NETDEV_LINK_2500) |
+ BIT(TRIGGER_NETDEV_LINK_5000) |
+ BIT(TRIGGER_NETDEV_LINK_10000) |
+ BIT(TRIGGER_NETDEV_TX) |
+ BIT(TRIGGER_NETDEV_RX),
+ .val = VEND1_LED_REG_A_EVENT_ON_LINK_BLINK_ACT
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_10) |
+ BIT(TRIGGER_NETDEV_LINK_100) |
+ BIT(TRIGGER_NETDEV_LINK_1000) |
+ BIT(TRIGGER_NETDEV_LINK_2500) |
+ BIT(TRIGGER_NETDEV_LINK_5000) |
+ BIT(TRIGGER_NETDEV_LINK_10000) |
+ BIT(TRIGGER_NETDEV_RX),
+ .val = VEND1_LED_REG_A_EVENT_ON_LINK_BLINK_RX
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_10) |
+ BIT(TRIGGER_NETDEV_LINK_100) |
+ BIT(TRIGGER_NETDEV_LINK_1000) |
+ BIT(TRIGGER_NETDEV_TX) |
+ BIT(TRIGGER_NETDEV_RX),
+ .val = VEND1_LED_REG_A_EVENT_ON_FE_GE_BLINK_ACT
+ },
+ {
+ .pattern = BIT(TRIGGER_NETDEV_LINK_2500) |
+ BIT(TRIGGER_NETDEV_LINK_5000) |
+ BIT(TRIGGER_NETDEV_LINK_10000) |
+ BIT(TRIGGER_NETDEV_TX) |
+ BIT(TRIGGER_NETDEV_RX),
+ .val = VEND1_LED_REG_A_EVENT_ON_NG_BLINK_ACT
+ }
+};
+
+static int aeon_firmware_boot(struct phy_device *phydev, const u8 *data,
+ size_t size)
+{
+ int i, ret;
+ u16 val;
+
+ ret = phy_modify_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLB_REG_CPU_CTRL,
+ VEND1_GLB_CPU_CTRL_MASK, AEON_CPU_CTRL_FW_LOAD);
+ if (ret)
+ return ret;
+
+ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, VEND1_FW_START_ADDR,
+ AEON_BOOT_ADDR);
+ if (ret)
+ return ret;
+
+ ret = phy_modify_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_GLB_REG_MDIO_INDIRECT_ADDRCMD,
+ 0x3ffc, 0xc000);
+ if (ret)
+ return ret;
+
+ val = phy_read_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_GLB_REG_MDIO_INDIRECT_STATUS);
+ if (val > 1) {
+ phydev_err(phydev, "wrong origin mdio_indirect_status: %x\n", val);
+ return -EINVAL;
+ }
+
+ /* Firmware is always aligned to u16 */
+ for (i = 0; i < size; i += 2) {
+ val = data[i + 1] << 8 | data[i];
+
+ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_GLB_REG_MDIO_INDIRECT_LOAD, val);
+ if (ret)
+ return ret;
+ }
+
+ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_GLB_REG_CPU_RESET_ADDR_LO_BASEADDR,
+ lower_16_bits(AEON_CPU_BOOT_ADDR));
+ if (ret)
+ return ret;
+
+ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_GLB_REG_CPU_RESET_ADDR_HI_BASEADDR,
+ upper_16_bits(AEON_CPU_BOOT_ADDR));
+ if (ret)
+ return ret;
+
+ return phy_modify_mmd(phydev, MDIO_MMD_VEND1, VEND1_GLB_REG_CPU_CTRL,
+ VEND1_GLB_CPU_CTRL_MASK, AEON_CPU_CTRL_FW_START);
+}
+
+static int aeon_firmware_load(struct phy_device *phydev)
+{
+ struct device *dev = &phydev->mdio.dev;
+ const struct firmware *fw;
+ const char *fw_name;
+ int ret;
+
+ ret = of_property_read_string(dev->of_node, "firmware-name",
+ &fw_name);
+ if (ret)
+ return ret;
+
+ ret = request_firmware(&fw, fw_name, dev);
+ if (ret) {
+ phydev_err(phydev, "failed to find FW file %s (%d)\n",
+ fw_name, ret);
+ return ret;
+ }
+
+ ret = aeon_firmware_boot(phydev, fw->data, fw->size);
+
+ release_firmware(fw);
+
+ return ret;
+}
+
+static bool aeon_ipc_ready(u16 val, bool parity_status)
+{
+ u16 status;
+
+ if (FIELD_GET(AEON_IPC_STS_PARITY, val) != parity_status)
+ return false;
+
+ status = val & AEON_IPC_STS_STATUS;
+
+ return status != AEON_IPC_STS_STATUS_RCVD &&
+ status != AEON_IPC_STS_STATUS_PROCESS &&
+ status != AEON_IPC_STS_STATUS_BUSY;
+}
+
+static int aeon_ipc_wait_cmd(struct phy_device *phydev, bool parity_status)
+{
+ u16 val;
+
+ /* Exit condition logic:
+ * - Wait for parity bit equal
+ * - Wait for status success, error OR ready
+ */
+ return phy_read_mmd_poll_timeout(phydev, MDIO_MMD_VEND1, VEND1_IPC_STS, val,
+ aeon_ipc_ready(val, parity_status),
+ AEON_IPC_DELAY, AEON_IPC_TIMEOUT, false);
+}
+
+static int aeon_ipc_send_cmd(struct phy_device *phydev,
+ struct as21xxx_priv *priv,
+ u16 cmd, u16 *ret_sts)
+{
+ bool curr_parity;
+ int ret;
+
+ /* The IPC sync by using a single parity bit.
+ * Each CMD have alternately this bit set or clear
+ * to understand correct flow and packet order.
+ */
+ curr_parity = priv->parity_status;
+ if (priv->parity_status)
+ cmd |= AEON_IPC_CMD_PARITY;
+
+ /* Always update parity for next packet */
+ priv->parity_status = !priv->parity_status;
+
+ ret = phy_write_mmd(phydev, MDIO_MMD_VEND1, VEND1_IPC_CMD, cmd);
+ if (ret)
+ return ret;
+
+ /* Wait for packet to be processed */
+ usleep_range(AEON_IPC_DELAY, AEON_IPC_DELAY + 5000);
+
+ /* With no ret_sts, ignore waiting for packet completion
+ * (ipc parity bit sync)
+ */
+ if (!ret_sts)
+ return 0;
+
+ ret = aeon_ipc_wait_cmd(phydev, curr_parity);
+ if (ret)
+ return ret;
+
+ ret = phy_read_mmd(phydev, MDIO_MMD_VEND1, VEND1_IPC_STS);
+ if (ret < 0)
+ return ret;
+
+ *ret_sts = ret;
+ if ((*ret_sts & AEON_IPC_STS_STATUS) != AEON_IPC_STS_STATUS_SUCCESS)
+ return -EINVAL;
+
+ return 0;
+}
+
+/* If data is NULL, return 0 or negative error.
+ * If data not NULL, return number of Bytes received from IPC or
+ * a negative error.
+ */
+static int aeon_ipc_send_msg(struct phy_device *phydev,
+ u16 opcode, u16 *data, unsigned int data_len,
+ u16 *ret_data)
+{
+ struct as21xxx_priv *priv = phydev->priv;
+ unsigned int ret_size;
+ u16 cmd, ret_sts;
+ int ret;
+ int i;
+
+ /* IPC have a max of 8 register to transfer data,
+ * make sure we never exceed this.
+ */
+ if (data_len > AEON_IPC_DATA_MAX)
+ return -EINVAL;
+
+ for (i = 0; i < data_len / sizeof(u16); i++)
+ phy_write_mmd(phydev, MDIO_MMD_VEND1, VEND1_IPC_DATA(i),
+ data[i]);
+
+ cmd = FIELD_PREP(AEON_IPC_CMD_SIZE, data_len) |
+ FIELD_PREP(AEON_IPC_CMD_OPCODE, opcode);
+
+ mutex_lock(&priv->ipc_lock);
+
+ ret = aeon_ipc_send_cmd(phydev, priv, cmd, &ret_sts);
+ if (ret) {
+ phydev_err(phydev, "failed to send ipc msg for %x: %d\n",
+ opcode, ret);
+ goto out;
+ }
+
+ if (!data)
+ goto out;
+
+ if ((ret_sts & AEON_IPC_STS_STATUS) == AEON_IPC_STS_STATUS_ERROR) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* Prevent IPC from stack smashing the kernel.
+ * We can't trust IPC to return a good value and we always
+ * preallocate space for 16 Bytes.
+ */
+ ret_size = FIELD_GET(AEON_IPC_STS_SIZE, ret_sts);
+ if (ret_size > AEON_IPC_DATA_MAX) {
+ ret = -EINVAL;
+ goto out;
+ }
+
+ /* Read data from IPC data register for ret_size value from IPC */
+ for (i = 0; i < DIV_ROUND_UP(ret_size, sizeof(u16)); i++) {
+ ret = phy_read_mmd(phydev, MDIO_MMD_VEND1, VEND1_IPC_DATA(i));
+ if (ret < 0)
+ goto out;
+
+ ret_data[i] = ret;
+ }
+
+ ret = ret_size;
+
+out:
+ mutex_unlock(&priv->ipc_lock);
+
+ return ret;
+}
+
+static int aeon_ipc_noop(struct phy_device *phydev,
+ struct as21xxx_priv *priv, u16 *ret_sts)
+{
+ u16 cmd;
+
+ cmd = FIELD_PREP(AEON_IPC_CMD_SIZE, 0) |
+ FIELD_PREP(AEON_IPC_CMD_OPCODE, IPC_CMD_NOOP);
+
+ return aeon_ipc_send_cmd(phydev, priv, cmd, ret_sts);
+}
+
+/* Logic to sync parity bit with IPC.
+ * We send 2 NOP cmd with same partity and we wait for IPC
+ * to handle the packet only for the second one. This way
+ * we make sure we are sync for every next cmd.
+ */
+static int aeon_ipc_sync_parity(struct phy_device *phydev,
+ struct as21xxx_priv *priv)
+{
+ u16 ret_sts;
+ int ret;
+
+ mutex_lock(&priv->ipc_lock);
+
+ /* Send NOP with no parity */
+ aeon_ipc_noop(phydev, priv, NULL);
+
+ /* Reset packet parity */
+ priv->parity_status = false;
+
+ /* Send second NOP with no parity */
+ ret = aeon_ipc_noop(phydev, priv, &ret_sts);
+
+ mutex_unlock(&priv->ipc_lock);
+
+ /* We expect to return -EINVAL */
+ if (ret != -EINVAL)
+ return ret;
+
+ if ((ret_sts & AEON_IPC_STS_STATUS) != AEON_IPC_STS_STATUS_READY) {
+ phydev_err(phydev, "Invalid IPC status on sync parity: %x\n",
+ ret_sts);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int aeon_ipc_get_fw_version(struct phy_device *phydev)
+{
+ u16 ret_data[AEON_IPC_DATA_NUM_REGISTERS], data[1];
+ char fw_version[AEON_IPC_DATA_MAX + 1];
+ int ret;
+
+ data[0] = IPC_INFO_VERSION;
+
+ ret = aeon_ipc_send_msg(phydev, IPC_CMD_INFO, data,
+ sizeof(data), ret_data);
+ if (ret < 0)
+ return ret;
+
+ /* Make sure FW version is NULL terminated */
+ memcpy(fw_version, ret_data, ret);
+ fw_version[ret] = '\0';
+
+ phydev_info(phydev, "Firmware Version: %s\n", fw_version);
+
+ return 0;
+}
+
+static int aeon_dpc_ra_enable(struct phy_device *phydev)
+{
+ u16 data[2];
+
+ data[0] = IPC_CFG_PARAM_DIRECT;
+ data[1] = IPC_CFG_PARAM_DIRECT_DPC_RA;
+
+ return aeon_ipc_send_msg(phydev, IPC_CMD_CFG_PARAM, data,
+ sizeof(data), NULL);
+}
+
+static int as21xxx_probe(struct phy_device *phydev)
+{
+ struct as21xxx_priv *priv;
+ int ret;
+
+ priv = devm_kzalloc(&phydev->mdio.dev,
+ sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+ phydev->priv = priv;
+
+ ret = devm_mutex_init(&phydev->mdio.dev,
+ &priv->ipc_lock);
+ if (ret)
+ return ret;
+
+ ret = aeon_ipc_sync_parity(phydev, priv);
+ if (ret)
+ return ret;
+
+ ret = aeon_ipc_get_fw_version(phydev);
+ if (ret)
+ return ret;
+
+ /* Enable PTP clk if not already Enabled */
+ ret = phy_set_bits_mmd(phydev, MDIO_MMD_VEND1, VEND1_PTP_CLK,
+ VEND1_PTP_CLK_EN);
+ if (ret)
+ return ret;
+
+ return aeon_dpc_ra_enable(phydev);
+}
+
+static int as21xxx_read_link(struct phy_device *phydev, int *bmcr)
+{
+ int status;
+
+ /* Normal C22 BMCR report inconsistent data, use
+ * the mapped C22 in C45 to have more consistent link info.
+ */
+ *bmcr = phy_read_mmd(phydev, MDIO_MMD_AN,
+ AS21XXX_MDIO_AN_C22 + MII_BMCR);
+ if (*bmcr < 0)
+ return *bmcr;
+
+ /* Autoneg is being started, therefore disregard current
+ * link status and report link as down.
+ */
+ if (*bmcr & BMCR_ANRESTART) {
+ phydev->link = 0;
+ return 0;
+ }
+
+ status = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1);
+ if (status < 0)
+ return status;
+
+ phydev->link = !!(status & MDIO_STAT1_LSTATUS);
+
+ return 0;
+}
+
+static int as21xxx_read_c22_lpa(struct phy_device *phydev)
+{
+ int lpagb;
+
+ /* MII_STAT1000 are only filled in the mapped C22
+ * in C45, use that to fill lpagb values and check.
+ */
+ lpagb = phy_read_mmd(phydev, MDIO_MMD_AN,
+ AS21XXX_MDIO_AN_C22 + MII_STAT1000);
+ if (lpagb < 0)
+ return lpagb;
+
+ if (lpagb & LPA_1000MSFAIL) {
+ int adv = phy_read_mmd(phydev, MDIO_MMD_AN,
+ AS21XXX_MDIO_AN_C22 + MII_CTRL1000);
+
+ if (adv < 0)
+ return adv;
+
+ if (adv & CTL1000_ENABLE_MASTER)
+ phydev_err(phydev, "Master/Slave resolution failed, maybe conflicting manual settings?\n");
+ else
+ phydev_err(phydev, "Master/Slave resolution failed\n");
+ return -ENOLINK;
+ }
+
+ mii_stat1000_mod_linkmode_lpa_t(phydev->lp_advertising,
+ lpagb);
+
+ return 0;
+}
+
+static int as21xxx_read_status(struct phy_device *phydev)
+{
+ int bmcr, old_link = phydev->link;
+ int ret;
+
+ ret = as21xxx_read_link(phydev, &bmcr);
+ if (ret)
+ return ret;
+
+ /* why bother the PHY if nothing can have changed */
+ if (phydev->autoneg == AUTONEG_ENABLE && old_link && phydev->link)
+ return 0;
+
+ 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;
+
+ ret = as21xxx_read_c22_lpa(phydev);
+ if (ret)
+ return ret;
+
+ phy_resolve_aneg_linkmode(phydev);
+ } else {
+ int speed;
+
+ linkmode_zero(phydev->lp_advertising);
+
+ speed = phy_read_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_SPEED_STATUS);
+ if (speed < 0)
+ return speed;
+
+ switch (speed & VEND1_SPEED_STATUS) {
+ case VEND1_SPEED_10000:
+ phydev->speed = SPEED_10000;
+ phydev->duplex = DUPLEX_FULL;
+ break;
+ case VEND1_SPEED_5000:
+ phydev->speed = SPEED_5000;
+ phydev->duplex = DUPLEX_FULL;
+ break;
+ case VEND1_SPEED_2500:
+ phydev->speed = SPEED_2500;
+ phydev->duplex = DUPLEX_FULL;
+ break;
+ case VEND1_SPEED_1000:
+ phydev->speed = SPEED_1000;
+ if (bmcr & BMCR_FULLDPLX)
+ phydev->duplex = DUPLEX_FULL;
+ else
+ phydev->duplex = DUPLEX_HALF;
+ break;
+ case VEND1_SPEED_100:
+ phydev->speed = SPEED_100;
+ phydev->duplex = DUPLEX_FULL;
+ break;
+ case VEND1_SPEED_10:
+ phydev->speed = SPEED_10;
+ phydev->duplex = DUPLEX_FULL;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+static int as21xxx_led_brightness_set(struct phy_device *phydev,
+ u8 index, enum led_brightness value)
+{
+ u16 val = VEND1_LED_REG_A_EVENT_OFF;
+
+ if (index > AEON_MAX_LEDS)
+ return -EINVAL;
+
+ if (value)
+ val = VEND1_LED_REG_A_EVENT_ON;
+
+ return phy_modify_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_LED_REG(index),
+ VEND1_LED_REG_A_EVENT,
+ FIELD_PREP(VEND1_LED_REG_A_EVENT, val));
+}
+
+static int as21xxx_led_hw_is_supported(struct phy_device *phydev, u8 index,
+ unsigned long rules)
+{
+ int i;
+
+ if (index > AEON_MAX_LEDS)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(as21xxx_led_supported_pattern); i++)
+ if (rules == as21xxx_led_supported_pattern[i].pattern)
+ return 0;
+
+ return -EOPNOTSUPP;
+}
+
+static int as21xxx_led_hw_control_get(struct phy_device *phydev, u8 index,
+ unsigned long *rules)
+{
+ int i, val;
+
+ if (index > AEON_MAX_LEDS)
+ return -EINVAL;
+
+ val = phy_read_mmd(phydev, MDIO_MMD_VEND1, VEND1_LED_REG(index));
+ if (val < 0)
+ return val;
+
+ val = FIELD_GET(VEND1_LED_REG_A_EVENT, val);
+ for (i = 0; i < ARRAY_SIZE(as21xxx_led_supported_pattern); i++)
+ if (val == as21xxx_led_supported_pattern[i].val) {
+ *rules = as21xxx_led_supported_pattern[i].pattern;
+ return 0;
+ }
+
+ /* Should be impossible */
+ return -EINVAL;
+}
+
+static int as21xxx_led_hw_control_set(struct phy_device *phydev, u8 index,
+ unsigned long rules)
+{
+ u16 val = 0;
+ int i;
+
+ if (index > AEON_MAX_LEDS)
+ return -EINVAL;
+
+ for (i = 0; i < ARRAY_SIZE(as21xxx_led_supported_pattern); i++)
+ if (rules == as21xxx_led_supported_pattern[i].pattern) {
+ val = as21xxx_led_supported_pattern[i].val;
+ break;
+ }
+
+ return phy_modify_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_LED_REG(index),
+ VEND1_LED_REG_A_EVENT,
+ FIELD_PREP(VEND1_LED_REG_A_EVENT, val));
+}
+
+static int as21xxx_led_polarity_set(struct phy_device *phydev, int index,
+ unsigned long modes)
+{
+ bool led_active_low = false;
+ u16 mask, val = 0;
+ u32 mode;
+
+ if (index > AEON_MAX_LEDS)
+ return -EINVAL;
+
+ for_each_set_bit(mode, &modes, __PHY_LED_MODES_NUM) {
+ switch (mode) {
+ case PHY_LED_ACTIVE_LOW:
+ led_active_low = true;
+ break;
+ case PHY_LED_ACTIVE_HIGH: /* default mode */
+ led_active_low = false;
+ break;
+ default:
+ return -EINVAL;
+ }
+ }
+
+ mask = VEND1_GLB_CPU_CTRL_LED_POLARITY(index);
+ if (led_active_low)
+ val = VEND1_GLB_CPU_CTRL_LED_POLARITY(index);
+
+ return phy_modify_mmd(phydev, MDIO_MMD_VEND1,
+ VEND1_GLB_REG_CPU_CTRL,
+ mask, val);
+}
+
+static int as21xxx_match_phy_device(struct phy_device *phydev,
+ const struct phy_driver *phydrv)
+{
+ struct as21xxx_priv *priv;
+ u16 ret_sts;
+ u32 phy_id;
+ int ret;
+
+ /* Skip PHY that are not AS21xxx or already have firmware loaded */
+ if (phydev->c45_ids.device_ids[MDIO_MMD_PCS] != PHY_ID_AS21XXX)
+ return genphy_match_phy_device(phydev, (struct phy_driver *)phydrv);
+
+ /* Read PHY ID to handle firmware just loaded */
+ ret = phy_read_mmd(phydev, MDIO_MMD_PCS, MII_PHYSID1);
+ if (ret < 0)
+ return ret;
+ phy_id = ret << 16;
+
+ ret = phy_read_mmd(phydev, MDIO_MMD_PCS, MII_PHYSID2);
+ if (ret < 0)
+ return ret;
+ phy_id |= ret;
+
+ /* With PHY ID not the generic AS21xxx one assume
+ * the firmware just loaded
+ */
+ if (phy_id != PHY_ID_AS21XXX)
+ return phy_id == phydrv->phy_id;
+
+ /* Allocate temp priv and load the firmware */
+ priv = kzalloc(sizeof(*priv), GFP_KERNEL);
+ if (!priv)
+ return -ENOMEM;
+
+ mutex_init(&priv->ipc_lock);
+
+ ret = aeon_firmware_load(phydev);
+ if (ret)
+ goto out;
+
+ /* Sync parity... */
+ ret = aeon_ipc_sync_parity(phydev, priv);
+ if (ret)
+ goto out;
+
+ /* ...and send a third NOOP cmd to wait for firmware finish loading */
+ ret = aeon_ipc_noop(phydev, priv, &ret_sts);
+ if (ret)
+ goto out;
+
+out:
+ mutex_destroy(&priv->ipc_lock);
+ kfree(priv);
+
+ /* Return can either be 0 or a negative error code.
+ * Returning 0 here means THIS is NOT a suitable PHY.
+ *
+ * For the specific case of the generic Aeonsemi PHY ID that
+ * needs the firmware the be loaded first to have a correct PHY ID,
+ * this is OK as a matching PHY ID will be found right after.
+ * This relies on the driver probe order where the first PHY driver
+ * probed is the generic one.
+ */
+ return ret;
+}
+
+static struct phy_driver as21xxx_drivers[] = {
+ {
+ /* PHY expose in C45 as 0x7500 0x9410
+ * before firmware is loaded.
+ * This driver entry must be attempted first to load
+ * the firmware and thus update the ID registers.
+ */
+ PHY_ID_MATCH_EXACT(PHY_ID_AS21XXX),
+ .name = "Aeonsemi AS21xxx",
+ .match_phy_device = as21xxx_match_phy_device,
+ },
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_AS21011JB1),
+ .name = "Aeonsemi AS21011JB1",
+ .probe = as21xxx_probe,
+ .match_phy_device = as21xxx_match_phy_device,
+ .read_status = as21xxx_read_status,
+ .led_brightness_set = as21xxx_led_brightness_set,
+ .led_hw_is_supported = as21xxx_led_hw_is_supported,
+ .led_hw_control_set = as21xxx_led_hw_control_set,
+ .led_hw_control_get = as21xxx_led_hw_control_get,
+ .led_polarity_set = as21xxx_led_polarity_set,
+ },
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_AS21011PB1),
+ .name = "Aeonsemi AS21011PB1",
+ .probe = as21xxx_probe,
+ .match_phy_device = as21xxx_match_phy_device,
+ .read_status = as21xxx_read_status,
+ .led_brightness_set = as21xxx_led_brightness_set,
+ .led_hw_is_supported = as21xxx_led_hw_is_supported,
+ .led_hw_control_set = as21xxx_led_hw_control_set,
+ .led_hw_control_get = as21xxx_led_hw_control_get,
+ .led_polarity_set = as21xxx_led_polarity_set,
+ },
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_AS21010PB1),
+ .name = "Aeonsemi AS21010PB1",
+ .probe = as21xxx_probe,
+ .match_phy_device = as21xxx_match_phy_device,
+ .read_status = as21xxx_read_status,
+ .led_brightness_set = as21xxx_led_brightness_set,
+ .led_hw_is_supported = as21xxx_led_hw_is_supported,
+ .led_hw_control_set = as21xxx_led_hw_control_set,
+ .led_hw_control_get = as21xxx_led_hw_control_get,
+ .led_polarity_set = as21xxx_led_polarity_set,
+ },
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_AS21010JB1),
+ .name = "Aeonsemi AS21010JB1",
+ .probe = as21xxx_probe,
+ .match_phy_device = as21xxx_match_phy_device,
+ .read_status = as21xxx_read_status,
+ .led_brightness_set = as21xxx_led_brightness_set,
+ .led_hw_is_supported = as21xxx_led_hw_is_supported,
+ .led_hw_control_set = as21xxx_led_hw_control_set,
+ .led_hw_control_get = as21xxx_led_hw_control_get,
+ .led_polarity_set = as21xxx_led_polarity_set,
+ },
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_AS21210PB1),
+ .name = "Aeonsemi AS21210PB1",
+ .probe = as21xxx_probe,
+ .match_phy_device = as21xxx_match_phy_device,
+ .read_status = as21xxx_read_status,
+ .led_brightness_set = as21xxx_led_brightness_set,
+ .led_hw_is_supported = as21xxx_led_hw_is_supported,
+ .led_hw_control_set = as21xxx_led_hw_control_set,
+ .led_hw_control_get = as21xxx_led_hw_control_get,
+ .led_polarity_set = as21xxx_led_polarity_set,
+ },
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_AS21510JB1),
+ .name = "Aeonsemi AS21510JB1",
+ .probe = as21xxx_probe,
+ .match_phy_device = as21xxx_match_phy_device,
+ .read_status = as21xxx_read_status,
+ .led_brightness_set = as21xxx_led_brightness_set,
+ .led_hw_is_supported = as21xxx_led_hw_is_supported,
+ .led_hw_control_set = as21xxx_led_hw_control_set,
+ .led_hw_control_get = as21xxx_led_hw_control_get,
+ .led_polarity_set = as21xxx_led_polarity_set,
+ },
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_AS21510PB1),
+ .name = "Aeonsemi AS21510PB1",
+ .probe = as21xxx_probe,
+ .match_phy_device = as21xxx_match_phy_device,
+ .read_status = as21xxx_read_status,
+ .led_brightness_set = as21xxx_led_brightness_set,
+ .led_hw_is_supported = as21xxx_led_hw_is_supported,
+ .led_hw_control_set = as21xxx_led_hw_control_set,
+ .led_hw_control_get = as21xxx_led_hw_control_get,
+ .led_polarity_set = as21xxx_led_polarity_set,
+ },
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_AS21511JB1),
+ .name = "Aeonsemi AS21511JB1",
+ .probe = as21xxx_probe,
+ .match_phy_device = as21xxx_match_phy_device,
+ .read_status = as21xxx_read_status,
+ .led_brightness_set = as21xxx_led_brightness_set,
+ .led_hw_is_supported = as21xxx_led_hw_is_supported,
+ .led_hw_control_set = as21xxx_led_hw_control_set,
+ .led_hw_control_get = as21xxx_led_hw_control_get,
+ .led_polarity_set = as21xxx_led_polarity_set,
+ },
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_AS21210JB1),
+ .name = "Aeonsemi AS21210JB1",
+ .probe = as21xxx_probe,
+ .match_phy_device = as21xxx_match_phy_device,
+ .read_status = as21xxx_read_status,
+ .led_brightness_set = as21xxx_led_brightness_set,
+ .led_hw_is_supported = as21xxx_led_hw_is_supported,
+ .led_hw_control_set = as21xxx_led_hw_control_set,
+ .led_hw_control_get = as21xxx_led_hw_control_get,
+ .led_polarity_set = as21xxx_led_polarity_set,
+ },
+ {
+ PHY_ID_MATCH_EXACT(PHY_ID_AS21511PB1),
+ .name = "Aeonsemi AS21511PB1",
+ .probe = as21xxx_probe,
+ .match_phy_device = as21xxx_match_phy_device,
+ .read_status = as21xxx_read_status,
+ .led_brightness_set = as21xxx_led_brightness_set,
+ .led_hw_is_supported = as21xxx_led_hw_is_supported,
+ .led_hw_control_set = as21xxx_led_hw_control_set,
+ .led_hw_control_get = as21xxx_led_hw_control_get,
+ .led_polarity_set = as21xxx_led_polarity_set,
+ },
+};
+module_phy_driver(as21xxx_drivers);
+
+static struct mdio_device_id __maybe_unused as21xxx_tbl[] = {
+ { PHY_ID_MATCH_VENDOR(PHY_VENDOR_AEONSEMI) },
+ { }
+};
+MODULE_DEVICE_TABLE(mdio, as21xxx_tbl);
+
+MODULE_DESCRIPTION("Aeonsemi AS21xxx PHY driver");
+MODULE_AUTHOR("Christian Marangi <ansuelsmth@gmail.com>");
+MODULE_LICENSE("GPL");
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