path: root/common/dpdk/recipes-extended/dpdk/dpdk/dpdk-dev-v3-05-18-net-axgbe-add-phy-initialization-and-related-apis.patch

From patchwork Fri Mar  9 08:42:21 2018
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Subject: [dpdk-dev, v3,
 05/18] net/axgbe: add phy initialization and related apis
From: Ravi Kumar <ravi1.kumar@amd.com>
X-Patchwork-Id: 35824
X-Patchwork-Delegate: ferruh.yigit@intel.com
Message-Id: <1520584954-130575-5-git-send-email-Ravi1.kumar@amd.com>
List-Id: dev.dpdk.org
To: dev@dpdk.org
Cc: ferruh.yigit@intel.com
Date: Fri,  9 Mar 2018 03:42:21 -0500

Signed-off-by: Ravi Kumar <Ravi1.kumar@amd.com>
---
 drivers/net/axgbe/Makefile         |   3 +
 drivers/net/axgbe/axgbe_dev.c      | 188 +++++++++
 drivers/net/axgbe/axgbe_ethdev.c   |  11 +
 drivers/net/axgbe/axgbe_ethdev.h   | 172 ++++++++
 drivers/net/axgbe/axgbe_i2c.c      | 453 +++++++++++++++++++++
 drivers/net/axgbe/axgbe_mdio.c     | 203 ++++++++++
 drivers/net/axgbe/axgbe_phy_impl.c | 799 +++++++++++++++++++++++++++++++++++++
 7 files changed, 1829 insertions(+)
 create mode 100644 drivers/net/axgbe/axgbe_i2c.c
 create mode 100644 drivers/net/axgbe/axgbe_mdio.c
 create mode 100644 drivers/net/axgbe/axgbe_phy_impl.c

diff --git a/drivers/net/axgbe/Makefile b/drivers/net/axgbe/Makefile
index ce2485d..a8f3358 100644
--- a/drivers/net/axgbe/Makefile
+++ b/drivers/net/axgbe/Makefile
@@ -143,5 +143,8 @@ LIBABIVER := 1
 #
 SRCS-$(CONFIG_RTE_LIBRTE_AXGBE_PMD) += axgbe_ethdev.c
 SRCS-$(CONFIG_RTE_LIBRTE_AXGBE_PMD) += axgbe_dev.c
+SRCS-$(CONFIG_RTE_LIBRTE_AXGBE_PMD) += axgbe_mdio.c
+SRCS-$(CONFIG_RTE_LIBRTE_AXGBE_PMD) += axgbe_phy_impl.c
+SRCS-$(CONFIG_RTE_LIBRTE_AXGBE_PMD) += axgbe_i2c.c
 
 include $(RTE_SDK)/mk/rte.lib.mk
diff --git a/drivers/net/axgbe/axgbe_dev.c b/drivers/net/axgbe/axgbe_dev.c
index 8bf3b82..90a99c4 100644
--- a/drivers/net/axgbe/axgbe_dev.c
+++ b/drivers/net/axgbe/axgbe_dev.c
@@ -129,6 +129,187 @@
 #include "axgbe_common.h"
 #include "axgbe_phy.h"
 
+/* query busy bit */
+static int mdio_complete(struct axgbe_port *pdata)
+{
+	if (!AXGMAC_IOREAD_BITS(pdata, MAC_MDIOSCCDR, BUSY))
+		return 1;
+
+	return 0;
+}
+
+static int axgbe_write_ext_mii_regs(struct axgbe_port *pdata, int addr,
+				    int reg, u16 val)
+{
+	unsigned int mdio_sca, mdio_sccd;
+	uint64_t timeout;
+
+	mdio_sca = 0;
+	AXGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, REG, reg);
+	AXGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, DA, addr);
+	AXGMAC_IOWRITE(pdata, MAC_MDIOSCAR, mdio_sca);
+
+	mdio_sccd = 0;
+	AXGMAC_SET_BITS(mdio_sccd, MAC_MDIOSCCDR, DATA, val);
+	AXGMAC_SET_BITS(mdio_sccd, MAC_MDIOSCCDR, CMD, 1);
+	AXGMAC_SET_BITS(mdio_sccd, MAC_MDIOSCCDR, BUSY, 1);
+	AXGMAC_IOWRITE(pdata, MAC_MDIOSCCDR, mdio_sccd);
+
+	timeout = rte_get_timer_cycles() + rte_get_timer_hz();
+	while (time_before(rte_get_timer_cycles(), timeout)) {
+		rte_delay_us(100);
+		if (mdio_complete(pdata))
+			return 0;
+	}
+
+	PMD_DRV_LOG(ERR, "Mdio write operation timed out");
+	return -ETIMEDOUT;
+}
+
+static int axgbe_read_ext_mii_regs(struct axgbe_port *pdata, int addr,
+				   int reg)
+{
+	unsigned int mdio_sca, mdio_sccd;
+	uint64_t timeout;
+
+	mdio_sca = 0;
+	AXGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, REG, reg);
+	AXGMAC_SET_BITS(mdio_sca, MAC_MDIOSCAR, DA, addr);
+	AXGMAC_IOWRITE(pdata, MAC_MDIOSCAR, mdio_sca);
+
+	mdio_sccd = 0;
+	AXGMAC_SET_BITS(mdio_sccd, MAC_MDIOSCCDR, CMD, 3);
+	AXGMAC_SET_BITS(mdio_sccd, MAC_MDIOSCCDR, BUSY, 1);
+	AXGMAC_IOWRITE(pdata, MAC_MDIOSCCDR, mdio_sccd);
+
+	timeout = rte_get_timer_cycles() + rte_get_timer_hz();
+
+	while (time_before(rte_get_timer_cycles(), timeout)) {
+		rte_delay_us(100);
+		if (mdio_complete(pdata))
+			goto success;
+	}
+
+	PMD_DRV_LOG(ERR, "Mdio read operation timed out");
+	return -ETIMEDOUT;
+
+success:
+	return AXGMAC_IOREAD_BITS(pdata, MAC_MDIOSCCDR, DATA);
+}
+
+static int axgbe_set_ext_mii_mode(struct axgbe_port *pdata, unsigned int port,
+				  enum axgbe_mdio_mode mode)
+{
+	unsigned int reg_val = 0;
+
+	switch (mode) {
+	case AXGBE_MDIO_MODE_CL22:
+		if (port > AXGMAC_MAX_C22_PORT)
+			return -EINVAL;
+		reg_val |= (1 << port);
+		break;
+	case AXGBE_MDIO_MODE_CL45:
+		break;
+	default:
+		return -EINVAL;
+	}
+	AXGMAC_IOWRITE(pdata, MAC_MDIOCL22R, reg_val);
+
+	return 0;
+}
+
+static int axgbe_read_mmd_regs_v2(struct axgbe_port *pdata,
+				  int prtad __rte_unused, int mmd_reg)
+{
+	unsigned int mmd_address, index, offset;
+	int mmd_data;
+
+	if (mmd_reg & MII_ADDR_C45)
+		mmd_address = mmd_reg & ~MII_ADDR_C45;
+	else
+		mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
+
+	/* The PCS registers are accessed using mmio. The underlying
+	 * management interface uses indirect addressing to access the MMD
+	 * register sets. This requires accessing of the PCS register in two
+	 * phases, an address phase and a data phase.
+	 *
+	 * The mmio interface is based on 16-bit offsets and values. All
+	 * register offsets must therefore be adjusted by left shifting the
+	 * offset 1 bit and reading 16 bits of data.
+	 */
+	mmd_address <<= 1;
+	index = mmd_address & ~pdata->xpcs_window_mask;
+	offset = pdata->xpcs_window + (mmd_address & pdata->xpcs_window_mask);
+
+	pthread_mutex_lock(&pdata->xpcs_mutex);
+
+	XPCS32_IOWRITE(pdata, pdata->xpcs_window_sel_reg, index);
+	mmd_data = XPCS16_IOREAD(pdata, offset);
+
+	pthread_mutex_unlock(&pdata->xpcs_mutex);
+
+	return mmd_data;
+}
+
+static void axgbe_write_mmd_regs_v2(struct axgbe_port *pdata,
+				    int prtad __rte_unused,
+				    int mmd_reg, int mmd_data)
+{
+	unsigned int mmd_address, index, offset;
+
+	if (mmd_reg & MII_ADDR_C45)
+		mmd_address = mmd_reg & ~MII_ADDR_C45;
+	else
+		mmd_address = (pdata->mdio_mmd << 16) | (mmd_reg & 0xffff);
+
+	/* The PCS registers are accessed using mmio. The underlying
+	 * management interface uses indirect addressing to access the MMD
+	 * register sets. This requires accessing of the PCS register in two
+	 * phases, an address phase and a data phase.
+	 *
+	 * The mmio interface is based on 16-bit offsets and values. All
+	 * register offsets must therefore be adjusted by left shifting the
+	 * offset 1 bit and writing 16 bits of data.
+	 */
+	mmd_address <<= 1;
+	index = mmd_address & ~pdata->xpcs_window_mask;
+	offset = pdata->xpcs_window + (mmd_address & pdata->xpcs_window_mask);
+
+	pthread_mutex_lock(&pdata->xpcs_mutex);
+
+	XPCS32_IOWRITE(pdata, pdata->xpcs_window_sel_reg, index);
+	XPCS16_IOWRITE(pdata, offset, mmd_data);
+
+	pthread_mutex_unlock(&pdata->xpcs_mutex);
+}
+
+static int axgbe_read_mmd_regs(struct axgbe_port *pdata, int prtad,
+			       int mmd_reg)
+{
+	switch (pdata->vdata->xpcs_access) {
+	case AXGBE_XPCS_ACCESS_V1:
+		PMD_DRV_LOG(ERR, "PHY_Version 1 is not supported ");
+		return -1;
+	case AXGBE_XPCS_ACCESS_V2:
+	default:
+		return axgbe_read_mmd_regs_v2(pdata, prtad, mmd_reg);
+	}
+}
+
+static void axgbe_write_mmd_regs(struct axgbe_port *pdata, int prtad,
+				 int mmd_reg, int mmd_data)
+{
+	switch (pdata->vdata->xpcs_access) {
+	case AXGBE_XPCS_ACCESS_V1:
+		PMD_DRV_LOG(ERR, "PHY_Version 1 is not supported ");
+		return;
+	case AXGBE_XPCS_ACCESS_V2:
+	default:
+		return axgbe_write_mmd_regs_v2(pdata, prtad, mmd_reg, mmd_data);
+	}
+}
+
 static int __axgbe_exit(struct axgbe_port *pdata)
 {
 	unsigned int count = 2000;
@@ -164,4 +345,11 @@ static int axgbe_exit(struct axgbe_port *pdata)
 void axgbe_init_function_ptrs_dev(struct axgbe_hw_if *hw_if)
 {
 	hw_if->exit = axgbe_exit;
+
+	hw_if->read_mmd_regs = axgbe_read_mmd_regs;
+	hw_if->write_mmd_regs = axgbe_write_mmd_regs;
+
+	hw_if->set_ext_mii_mode = axgbe_set_ext_mii_mode;
+	hw_if->read_ext_mii_regs = axgbe_read_ext_mii_regs;
+	hw_if->write_ext_mii_regs = axgbe_write_ext_mii_regs;
 }
diff --git a/drivers/net/axgbe/axgbe_ethdev.c b/drivers/net/axgbe/axgbe_ethdev.c
index 786d929..0dc424d 100644
--- a/drivers/net/axgbe/axgbe_ethdev.c
+++ b/drivers/net/axgbe/axgbe_ethdev.c
@@ -147,6 +147,7 @@ static const struct rte_pci_id pci_id_axgbe_map[] = {
 };
 
 static struct axgbe_version_data axgbe_v2a = {
+	.init_function_ptrs_phy_impl    = axgbe_init_function_ptrs_phy_v2,
 	.xpcs_access			= AXGBE_XPCS_ACCESS_V2,
 	.mmc_64bit			= 1,
 	.tx_max_fifo_size		= 229376,
@@ -157,6 +158,7 @@ static struct axgbe_version_data axgbe_v2a = {
 };
 
 static struct axgbe_version_data axgbe_v2b = {
+	.init_function_ptrs_phy_impl    = axgbe_init_function_ptrs_phy_v2,
 	.xpcs_access			= AXGBE_XPCS_ACCESS_V2,
 	.mmc_64bit			= 1,
 	.tx_max_fifo_size		= 65536,
@@ -271,6 +273,9 @@ static void axgbe_get_all_hw_features(struct axgbe_port *pdata)
 static void axgbe_init_all_fptrs(struct axgbe_port *pdata)
 {
 	axgbe_init_function_ptrs_dev(&pdata->hw_if);
+	axgbe_init_function_ptrs_phy(&pdata->phy_if);
+	axgbe_init_function_ptrs_i2c(&pdata->i2c_if);
+	pdata->vdata->init_function_ptrs_phy_impl(&pdata->phy_if);
 }
 
 static void axgbe_set_counts(struct axgbe_port *pdata)
@@ -458,6 +463,12 @@ eth_axgbe_dev_init(struct rte_eth_dev *eth_dev)
 	pthread_mutex_init(&pdata->an_mutex, NULL);
 	pthread_mutex_init(&pdata->phy_mutex, NULL);
 
+	ret = pdata->phy_if.phy_init(pdata);
+	if (ret) {
+		rte_free(eth_dev->data->mac_addrs);
+		return ret;
+	}
+
 	PMD_INIT_LOG(DEBUG, "port %d vendorID=0x%x deviceID=0x%x",
 		     eth_dev->data->port_id, pci_dev->id.vendor_id,
 		     pci_dev->id.device_id);
diff --git a/drivers/net/axgbe/axgbe_ethdev.h b/drivers/net/axgbe/axgbe_ethdev.h
index 5d20a1f..6cddb57 100644
--- a/drivers/net/axgbe/axgbe_ethdev.h
+++ b/drivers/net/axgbe/axgbe_ethdev.h
@@ -311,6 +311,61 @@ enum axgbe_mdio_mode {
 	AXGBE_MDIO_MODE_CL45,
 };
 
+struct axgbe_phy {
+	uint32_t supported;
+	uint32_t advertising;
+	uint32_t lp_advertising;
+
+	int address;
+
+	int autoneg;
+	int speed;
+	int duplex;
+
+	int link;
+
+	int pause_autoneg;
+	int tx_pause;
+	int rx_pause;
+};
+
+enum axgbe_i2c_cmd {
+	AXGBE_I2C_CMD_READ = 0,
+	AXGBE_I2C_CMD_WRITE,
+};
+
+struct axgbe_i2c_op {
+	enum axgbe_i2c_cmd cmd;
+
+	unsigned int target;
+
+	uint8_t *buf;
+	unsigned int len;
+};
+
+struct axgbe_i2c_op_state {
+	struct axgbe_i2c_op *op;
+
+	unsigned int tx_len;
+	unsigned char *tx_buf;
+
+	unsigned int rx_len;
+	unsigned char *rx_buf;
+
+	unsigned int tx_abort_source;
+
+	int ret;
+};
+
+struct axgbe_i2c {
+	unsigned int started;
+	unsigned int max_speed_mode;
+	unsigned int rx_fifo_size;
+	unsigned int tx_fifo_size;
+
+	struct axgbe_i2c_op_state op_state;
+};
+
 struct axgbe_hw_if {
 	void (*config_flow_control)(struct axgbe_port *);
 	int (*config_rx_mode)(struct axgbe_port *);
@@ -333,6 +388,89 @@ struct axgbe_hw_if {
 	int (*exit)(struct axgbe_port *);
 };
 
+/* This structure represents implementation specific routines for an
+ * implementation of a PHY. All routines are required unless noted below.
+ *   Optional routines:
+ *     kr_training_pre, kr_training_post
+ */
+struct axgbe_phy_impl_if {
+	/* Perform Setup/teardown actions */
+	int (*init)(struct axgbe_port *);
+	void (*exit)(struct axgbe_port *);
+
+	/* Perform start/stop specific actions */
+	int (*reset)(struct axgbe_port *);
+	int (*start)(struct axgbe_port *);
+	void (*stop)(struct axgbe_port *);
+
+	/* Return the link status */
+	int (*link_status)(struct axgbe_port *, int *);
+
+	/* Indicate if a particular speed is valid */
+	int (*valid_speed)(struct axgbe_port *, int);
+
+	/* Check if the specified mode can/should be used */
+	bool (*use_mode)(struct axgbe_port *, enum axgbe_mode);
+	/* Switch the PHY into various modes */
+	void (*set_mode)(struct axgbe_port *, enum axgbe_mode);
+	/* Retrieve mode needed for a specific speed */
+	enum axgbe_mode (*get_mode)(struct axgbe_port *, int);
+	/* Retrieve new/next mode when trying to auto-negotiate */
+	enum axgbe_mode (*switch_mode)(struct axgbe_port *);
+	/* Retrieve current mode */
+	enum axgbe_mode (*cur_mode)(struct axgbe_port *);
+
+	/* Retrieve current auto-negotiation mode */
+	enum axgbe_an_mode (*an_mode)(struct axgbe_port *);
+
+	/* Configure auto-negotiation settings */
+	int (*an_config)(struct axgbe_port *);
+
+	/* Set/override auto-negotiation advertisement settings */
+	unsigned int (*an_advertising)(struct axgbe_port *port);
+
+	/* Process results of auto-negotiation */
+	enum axgbe_mode (*an_outcome)(struct axgbe_port *);
+
+	/* Pre/Post KR training enablement support */
+	void (*kr_training_pre)(struct axgbe_port *);
+	void (*kr_training_post)(struct axgbe_port *);
+};
+
+struct axgbe_phy_if {
+	/* For PHY setup/teardown */
+	int (*phy_init)(struct axgbe_port *);
+	void (*phy_exit)(struct axgbe_port *);
+
+	/* For PHY support when setting device up/down */
+	int (*phy_reset)(struct axgbe_port *);
+	int (*phy_start)(struct axgbe_port *);
+	void (*phy_stop)(struct axgbe_port *);
+
+	/* For PHY support while device is up */
+	void (*phy_status)(struct axgbe_port *);
+	int (*phy_config_aneg)(struct axgbe_port *);
+
+	/* For PHY settings validation */
+	int (*phy_valid_speed)(struct axgbe_port *, int);
+	/* For single interrupt support */
+	void (*an_isr)(struct axgbe_port *);
+	/* PHY implementation specific services */
+	struct axgbe_phy_impl_if phy_impl;
+};
+
+struct axgbe_i2c_if {
+	/* For initial I2C setup */
+	int (*i2c_init)(struct axgbe_port *);
+
+	/* For I2C support when setting device up/down */
+	int (*i2c_start)(struct axgbe_port *);
+	void (*i2c_stop)(struct axgbe_port *);
+
+	/* For performing I2C operations */
+	int (*i2c_xfer)(struct axgbe_port *, struct axgbe_i2c_op *);
+};
+
 /* This structure contains flags that indicate what hardware features
  * or configurations are present in the device.
  */
@@ -380,6 +518,7 @@ struct axgbe_hw_features {
 };
 
 struct axgbe_version_data {
+	void (*init_function_ptrs_phy_impl)(struct axgbe_phy_if *);
 	enum axgbe_xpcs_access xpcs_access;
 	unsigned int mmc_64bit;
 	unsigned int tx_max_fifo_size;
@@ -417,6 +556,8 @@ struct axgbe_port {
 	unsigned long dev_state;
 
 	struct axgbe_hw_if hw_if;
+	struct axgbe_phy_if phy_if;
+	struct axgbe_i2c_if i2c_if;
 
 	/* AXI DMA settings */
 	unsigned int coherent;
@@ -488,7 +629,38 @@ struct axgbe_port {
 	struct axgbe_hw_features hw_feat;
 
 	struct ether_addr mac_addr;
+
+	/* MDIO/PHY related settings */
+	unsigned int phy_started;
+	void *phy_data;
+	struct axgbe_phy phy;
+	int mdio_mmd;
+	unsigned long link_check;
+	volatile int mdio_completion;
+
+	unsigned int kr_redrv;
+
+	/* Auto-negotiation atate machine support */
+	unsigned int an_int;
+	unsigned int an_status;
+	enum axgbe_an an_result;
+	enum axgbe_an an_state;
+	enum axgbe_rx kr_state;
+	enum axgbe_rx kx_state;
+	unsigned int an_supported;
+	unsigned int parallel_detect;
+	unsigned int fec_ability;
+	unsigned long an_start;
+	enum axgbe_an_mode an_mode;
+
+	/* I2C support */
+	struct axgbe_i2c i2c;
+	volatile int i2c_complete;
 };
 
 void axgbe_init_function_ptrs_dev(struct axgbe_hw_if *hw_if);
+void axgbe_init_function_ptrs_phy(struct axgbe_phy_if *phy_if);
+void axgbe_init_function_ptrs_phy_v2(struct axgbe_phy_if *phy_if);
+void axgbe_init_function_ptrs_i2c(struct axgbe_i2c_if *i2c_if);
+
 #endif /* RTE_ETH_AXGBE_H_ */
diff --git a/drivers/net/axgbe/axgbe_i2c.c b/drivers/net/axgbe/axgbe_i2c.c
new file mode 100644
index 0000000..468955e
--- /dev/null
+++ b/drivers/net/axgbe/axgbe_i2c.c
@@ -0,0 +1,453 @@
+/*-
+ *   Copyright(c) 2014-2017 Advanced Micro Devices, Inc.
+ *   All rights reserved.
+ *
+ *   AMD 10Gb Ethernet driver
+ *
+ *   This file is available to you under your choice of the following two
+ *   licenses:
+ *
+ *   License 1: GPLv2
+ *
+ *   Copyright (c) 2017 Advanced Micro Devices, Inc.
+ *
+ *   This file is free software; you may copy, redistribute and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This file is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *   General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ *   This file incorporates work covered by the following copyright and
+ *   permission notice:
+ *
+ *   Copyright (c) 2013 Synopsys, Inc.
+ *
+ *   The Synopsys DWC ETHER XGMAC Software Driver and documentation
+ *   (hereinafter "Software") is an unsupported proprietary work of Synopsys,
+ *   Inc. unless otherwise expressly agreed to in writing between Synopsys
+ *   and you.
+ *
+ *   The Software IS NOT an item of Licensed Software or Licensed Product
+ *   under any End User Software License Agreement or Agreement for Licensed
+ *   Product with Synopsys or any supplement thereto. Permission is hereby
+ *   granted, free of charge, to any person obtaining a copy of this software
+ *   annotated with this license and the Software, to deal in the Software
+ *   without restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ *   of the Software, and to permit persons to whom the Software is furnished
+ *   to do so, subject to the following conditions:
+ *
+ *   The above copyright notice and this permission notice shall be included
+ *   in all copies or substantial portions of the Software.
+ *
+ *   THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
+ *   BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ *   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ *   PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
+ *   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ *   THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *   License 2: Modified BSD
+ *
+ *   Copyright (c) 2017 Advanced Micro Devices, Inc.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Advanced Micro Devices, Inc. nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ *   <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *   This file incorporates work covered by the following copyright and
+ *   permission notice:
+ *
+ *   Copyright (c) 2013 Synopsys, Inc.
+ *
+ *   The Synopsys DWC ETHER XGMAC Software Driver and documentation
+ *   (hereinafter "Software") is an unsupported proprietary work of Synopsys,
+ *   Inc. unless otherwise expressly agreed to in writing between Synopsys
+ *   and you.
+ *
+ *   The Software IS NOT an item of Licensed Software or Licensed Product
+ *   under any End User Software License Agreement or Agreement for Licensed
+ *   Product with Synopsys or any supplement thereto. Permission is hereby
+ *   granted, free of charge, to any person obtaining a copy of this software
+ *   annotated with this license and the Software, to deal in the Software
+ *   without restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ *   of the Software, and to permit persons to whom the Software is furnished
+ *   to do so, subject to the following conditions:
+ *
+ *   The above copyright notice and this permission notice shall be included
+ *   in all copies or substantial portions of the Software.
+ *
+ *   THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
+ *   BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ *   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ *   PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
+ *   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ *   THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "axgbe_ethdev.h"
+#include "axgbe_common.h"
+
+#define AXGBE_ABORT_COUNT	500
+#define AXGBE_DISABLE_COUNT	1000
+
+#define AXGBE_STD_SPEED		1
+
+#define AXGBE_INTR_RX_FULL	BIT(IC_RAW_INTR_STAT_RX_FULL_INDEX)
+#define AXGBE_INTR_TX_EMPTY	BIT(IC_RAW_INTR_STAT_TX_EMPTY_INDEX)
+#define AXGBE_INTR_TX_ABRT	BIT(IC_RAW_INTR_STAT_TX_ABRT_INDEX)
+#define AXGBE_INTR_STOP_DET	BIT(IC_RAW_INTR_STAT_STOP_DET_INDEX)
+#define AXGBE_DEFAULT_INT_MASK	(AXGBE_INTR_RX_FULL  |	\
+				 AXGBE_INTR_TX_EMPTY |	\
+				 AXGBE_INTR_TX_ABRT  |	\
+				 AXGBE_INTR_STOP_DET)
+
+#define AXGBE_I2C_READ		BIT(8)
+#define AXGBE_I2C_STOP		BIT(9)
+
+static int axgbe_i2c_abort(struct axgbe_port *pdata)
+{
+	unsigned int wait = AXGBE_ABORT_COUNT;
+
+	/* Must be enabled to recognize the abort request */
+	XI2C_IOWRITE_BITS(pdata, IC_ENABLE, EN, 1);
+
+	/* Issue the abort */
+	XI2C_IOWRITE_BITS(pdata, IC_ENABLE, ABORT, 1);
+
+	while (wait--) {
+		if (!XI2C_IOREAD_BITS(pdata, IC_ENABLE, ABORT))
+			return 0;
+		rte_delay_us(500);
+	}
+
+	return -EBUSY;
+}
+
+static int axgbe_i2c_set_enable(struct axgbe_port *pdata, bool enable)
+{
+	unsigned int wait = AXGBE_DISABLE_COUNT;
+	unsigned int mode = enable ? 1 : 0;
+
+	while (wait--) {
+		XI2C_IOWRITE_BITS(pdata, IC_ENABLE, EN, mode);
+		if (XI2C_IOREAD_BITS(pdata, IC_ENABLE_STATUS, EN) == mode)
+			return 0;
+
+		rte_delay_us(100);
+	}
+
+	return -EBUSY;
+}
+
+static int axgbe_i2c_disable(struct axgbe_port *pdata)
+{
+	unsigned int ret;
+
+	ret = axgbe_i2c_set_enable(pdata, false);
+	if (ret) {
+		/* Disable failed, try an abort */
+		ret = axgbe_i2c_abort(pdata);
+		if (ret)
+			return ret;
+
+		/* Abort succeeded, try to disable again */
+		ret = axgbe_i2c_set_enable(pdata, false);
+	}
+
+	return ret;
+}
+
+static int axgbe_i2c_enable(struct axgbe_port *pdata)
+{
+	return axgbe_i2c_set_enable(pdata, true);
+}
+
+static void axgbe_i2c_clear_all_interrupts(struct axgbe_port *pdata)
+{
+	XI2C_IOREAD(pdata, IC_CLR_INTR);
+}
+
+static void axgbe_i2c_disable_interrupts(struct axgbe_port *pdata)
+{
+	XI2C_IOWRITE(pdata, IC_INTR_MASK, 0);
+}
+
+static void axgbe_i2c_enable_interrupts(struct axgbe_port *pdata)
+{
+	XI2C_IOWRITE(pdata, IC_INTR_MASK, AXGBE_DEFAULT_INT_MASK);
+}
+
+static void axgbe_i2c_write(struct axgbe_port *pdata)
+{
+	struct axgbe_i2c_op_state *state = &pdata->i2c.op_state;
+	unsigned int tx_slots;
+	unsigned int cmd;
+
+	/* Configured to never receive Rx overflows, so fill up Tx fifo */
+	tx_slots = pdata->i2c.tx_fifo_size - XI2C_IOREAD(pdata, IC_TXFLR);
+	while (tx_slots && state->tx_len) {
+		if (state->op->cmd == AXGBE_I2C_CMD_READ)
+			cmd = AXGBE_I2C_READ;
+		else
+			cmd = *state->tx_buf++;
+
+		if (state->tx_len == 1)
+			XI2C_SET_BITS(cmd, IC_DATA_CMD, STOP, 1);
+
+		XI2C_IOWRITE(pdata, IC_DATA_CMD, cmd);
+
+		tx_slots--;
+		state->tx_len--;
+	}
+
+	/* No more Tx operations, so ignore TX_EMPTY and return */
+	if (!state->tx_len)
+		XI2C_IOWRITE_BITS(pdata, IC_INTR_MASK, TX_EMPTY, 0);
+}
+
+static void axgbe_i2c_read(struct axgbe_port *pdata)
+{
+	struct axgbe_i2c_op_state *state = &pdata->i2c.op_state;
+	unsigned int rx_slots;
+
+	/* Anything to be read? */
+	if (state->op->cmd != AXGBE_I2C_CMD_READ)
+		return;
+
+	rx_slots = XI2C_IOREAD(pdata, IC_RXFLR);
+	while (rx_slots && state->rx_len) {
+		*state->rx_buf++ = XI2C_IOREAD(pdata, IC_DATA_CMD);
+		state->rx_len--;
+		rx_slots--;
+	}
+}
+
+static void axgbe_i2c_clear_isr_interrupts(struct axgbe_port *pdata,
+					  unsigned int isr)
+{
+	struct axgbe_i2c_op_state *state = &pdata->i2c.op_state;
+
+	if (isr & AXGBE_INTR_TX_ABRT) {
+		state->tx_abort_source = XI2C_IOREAD(pdata, IC_TX_ABRT_SOURCE);
+		XI2C_IOREAD(pdata, IC_CLR_TX_ABRT);
+	}
+
+	if (isr & AXGBE_INTR_STOP_DET)
+		XI2C_IOREAD(pdata, IC_CLR_STOP_DET);
+}
+
+static int axgbe_i2c_isr(struct axgbe_port *pdata)
+{
+	struct axgbe_i2c_op_state *state = &pdata->i2c.op_state;
+	unsigned int isr;
+
+	isr = XI2C_IOREAD(pdata, IC_RAW_INTR_STAT);
+
+	axgbe_i2c_clear_isr_interrupts(pdata, isr);
+
+	if (isr & AXGBE_INTR_TX_ABRT) {
+		axgbe_i2c_disable_interrupts(pdata);
+
+		state->ret = -EIO;
+		goto out;
+	}
+
+	/* Check for data in the Rx fifo */
+	axgbe_i2c_read(pdata);
+
+	/* Fill up the Tx fifo next */
+	axgbe_i2c_write(pdata);
+
+out:
+	/* Complete on an error or STOP condition */
+	if (state->ret || XI2C_GET_BITS(isr, IC_RAW_INTR_STAT, STOP_DET))
+		return 1;
+
+	return 0;
+}
+
+static void axgbe_i2c_set_mode(struct axgbe_port *pdata)
+{
+	unsigned int reg;
+
+	reg = XI2C_IOREAD(pdata, IC_CON);
+	XI2C_SET_BITS(reg, IC_CON, MASTER_MODE, 1);
+	XI2C_SET_BITS(reg, IC_CON, SLAVE_DISABLE, 1);
+	XI2C_SET_BITS(reg, IC_CON, RESTART_EN, 1);
+	XI2C_SET_BITS(reg, IC_CON, SPEED, AXGBE_STD_SPEED);
+	XI2C_SET_BITS(reg, IC_CON, RX_FIFO_FULL_HOLD, 1);
+	XI2C_IOWRITE(pdata, IC_CON, reg);
+}
+
+static void axgbe_i2c_get_features(struct axgbe_port *pdata)
+{
+	struct axgbe_i2c *i2c = &pdata->i2c;
+	unsigned int reg;
+
+	reg = XI2C_IOREAD(pdata, IC_COMP_PARAM_1);
+	i2c->max_speed_mode = XI2C_GET_BITS(reg, IC_COMP_PARAM_1,
+					    MAX_SPEED_MODE);
+	i2c->rx_fifo_size = XI2C_GET_BITS(reg, IC_COMP_PARAM_1,
+					  RX_BUFFER_DEPTH);
+	i2c->tx_fifo_size = XI2C_GET_BITS(reg, IC_COMP_PARAM_1,
+					  TX_BUFFER_DEPTH);
+}
+
+static void axgbe_i2c_set_target(struct axgbe_port *pdata, unsigned int addr)
+{
+	XI2C_IOWRITE(pdata, IC_TAR, addr);
+}
+
+static int axgbe_i2c_xfer(struct axgbe_port *pdata, struct axgbe_i2c_op *op)
+{
+	struct axgbe_i2c_op_state *state = &pdata->i2c.op_state;
+	int ret;
+	uint64_t timeout;
+
+	pthread_mutex_lock(&pdata->i2c_mutex);
+	ret = axgbe_i2c_disable(pdata);
+	if (ret) {
+		PMD_DRV_LOG(ERR, "failed to disable i2c master");
+		return ret;
+	}
+
+	axgbe_i2c_set_target(pdata, op->target);
+
+	memset(state, 0, sizeof(*state));
+	state->op = op;
+	state->tx_len = op->len;
+	state->tx_buf = (unsigned char *)op->buf;
+	state->rx_len = op->len;
+	state->rx_buf = (unsigned char *)op->buf;
+
+	axgbe_i2c_clear_all_interrupts(pdata);
+	ret = axgbe_i2c_enable(pdata);
+	if (ret) {
+		PMD_DRV_LOG(ERR, "failed to enable i2c master\n");
+		return ret;
+	}
+
+	/* Enabling the interrupts will cause the TX FIFO empty interrupt to
+	 * fire and begin to process the command via the ISR.
+	 */
+	axgbe_i2c_enable_interrupts(pdata);
+	timeout = rte_get_timer_cycles() + rte_get_timer_hz();
+
+	while (time_before(rte_get_timer_cycles(), timeout)) {
+		rte_delay_us(100);
+		if (XI2C_IOREAD(pdata, IC_RAW_INTR_STAT)) {
+			if (axgbe_i2c_isr(pdata))
+				goto success;
+		}
+	}
+
+	PMD_DRV_LOG(ERR, "i2c operation timed out");
+	axgbe_i2c_disable_interrupts(pdata);
+	axgbe_i2c_disable(pdata);
+	ret = -ETIMEDOUT;
+	goto unlock;
+
+success:
+	ret = state->ret;
+	if (ret) {
+		if (state->tx_abort_source & IC_TX_ABRT_7B_ADDR_NOACK)
+			ret = -ENOTCONN;
+		else if (state->tx_abort_source & IC_TX_ABRT_ARB_LOST)
+			ret = -EAGAIN;
+	}
+
+unlock:
+	pthread_mutex_unlock(&pdata->i2c_mutex);
+	return ret;
+}
+
+static void axgbe_i2c_stop(struct axgbe_port *pdata)
+{
+	if (!pdata->i2c.started)
+		return;
+
+	pdata->i2c.started = 0;
+	axgbe_i2c_disable_interrupts(pdata);
+	axgbe_i2c_disable(pdata);
+	axgbe_i2c_clear_all_interrupts(pdata);
+}
+
+static int axgbe_i2c_start(struct axgbe_port *pdata)
+{
+	if (pdata->i2c.started)
+		return 0;
+
+	pdata->i2c.started = 1;
+
+	return 0;
+}
+
+static int axgbe_i2c_init(struct axgbe_port *pdata)
+{
+	int ret;
+
+	axgbe_i2c_disable_interrupts(pdata);
+
+	ret = axgbe_i2c_disable(pdata);
+	if (ret) {
+		PMD_DRV_LOG(ERR, "failed to disable i2c master");
+		return ret;
+	}
+
+	axgbe_i2c_get_features(pdata);
+
+	axgbe_i2c_set_mode(pdata);
+
+	axgbe_i2c_clear_all_interrupts(pdata);
+
+	return 0;
+}
+
+void axgbe_init_function_ptrs_i2c(struct axgbe_i2c_if *i2c_if)
+{
+	i2c_if->i2c_init		= axgbe_i2c_init;
+	i2c_if->i2c_start		= axgbe_i2c_start;
+	i2c_if->i2c_stop		= axgbe_i2c_stop;
+	i2c_if->i2c_xfer		= axgbe_i2c_xfer;
+}
diff --git a/drivers/net/axgbe/axgbe_mdio.c b/drivers/net/axgbe/axgbe_mdio.c
new file mode 100644
index 0000000..4fbf5c3
--- /dev/null
+++ b/drivers/net/axgbe/axgbe_mdio.c
@@ -0,0 +1,203 @@
+/*-
+ *   Copyright(c) 2014-2017 Advanced Micro Devices, Inc.
+ *   All rights reserved.
+ *
+ *   AMD 10Gb Ethernet driver
+ *
+ *   This file is available to you under your choice of the following two
+ *   licenses:
+ *
+ *   License 1: GPLv2
+ *
+ *   Copyright (c) 2017 Advanced Micro Devices, Inc.
+ *
+ *   This file is free software; you may copy, redistribute and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This file is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *   General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ *   This file incorporates work covered by the following copyright and
+ *   permission notice:
+ *
+ *   Copyright (c) 2013 Synopsys, Inc.
+ *
+ *   The Synopsys DWC ETHER XGMAC Software Driver and documentation
+ *   (hereinafter "Software") is an unsupported proprietary work of Synopsys,
+ *   Inc. unless otherwise expressly agreed to in writing between Synopsys
+ *   and you.
+ *
+ *   The Software IS NOT an item of Licensed Software or Licensed Product
+ *   under any End User Software License Agreement or Agreement for Licensed
+ *   Product with Synopsys or any supplement thereto. Permission is hereby
+ *   granted, free of charge, to any person obtaining a copy of this software
+ *   annotated with this license and the Software, to deal in the Software
+ *   without restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ *   of the Software, and to permit persons to whom the Software is furnished
+ *   to do so, subject to the following conditions:
+ *
+ *   The above copyright notice and this permission notice shall be included
+ *   in all copies or substantial portions of the Software.
+ *
+ *   THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
+ *   BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ *   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ *   PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
+ *   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ *   THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *   License 2: Modified BSD
+ *
+ *   Copyright (c) 2017 Advanced Micro Devices, Inc.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Advanced Micro Devices, Inc. nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ *   <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *   This file incorporates work covered by the following copyright and
+ *   permission notice:
+ *
+ *   Copyright (c) 2013 Synopsys, Inc.
+ *
+ *   The Synopsys DWC ETHER XGMAC Software Driver and documentation
+ *   (hereinafter "Software") is an unsupported proprietary work of Synopsys,
+ *   Inc. unless otherwise expressly agreed to in writing between Synopsys
+ *   and you.
+ *
+ *   The Software IS NOT an item of Licensed Software or Licensed Product
+ *   under any End User Software License Agreement or Agreement for Licensed
+ *   Product with Synopsys or any supplement thereto. Permission is hereby
+ *   granted, free of charge, to any person obtaining a copy of this software
+ *   annotated with this license and the Software, to deal in the Software
+ *   without restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ *   of the Software, and to permit persons to whom the Software is furnished
+ *   to do so, subject to the following conditions:
+ *
+ *   The above copyright notice and this permission notice shall be included
+ *   in all copies or substantial portions of the Software.
+ *
+ *   THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
+ *   BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ *   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ *   PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
+ *   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ *   THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "axgbe_ethdev.h"
+#include "axgbe_common.h"
+#include "axgbe_phy.h"
+
+static int axgbe_phy_best_advertised_speed(struct axgbe_port *pdata)
+{
+	if (pdata->phy.advertising & ADVERTISED_10000baseKR_Full)
+		return SPEED_10000;
+	else if (pdata->phy.advertising & ADVERTISED_10000baseT_Full)
+		return SPEED_10000;
+	else if (pdata->phy.advertising & ADVERTISED_2500baseX_Full)
+		return SPEED_2500;
+	else if (pdata->phy.advertising & ADVERTISED_1000baseKX_Full)
+		return SPEED_1000;
+	else if (pdata->phy.advertising & ADVERTISED_1000baseT_Full)
+		return SPEED_1000;
+	else if (pdata->phy.advertising & ADVERTISED_100baseT_Full)
+		return SPEED_100;
+
+	return SPEED_UNKNOWN;
+}
+
+static int axgbe_phy_init(struct axgbe_port *pdata)
+{
+	int ret;
+
+	pdata->mdio_mmd = MDIO_MMD_PCS;
+
+	/* Check for FEC support */
+	pdata->fec_ability = XMDIO_READ(pdata, MDIO_MMD_PMAPMD,
+					MDIO_PMA_10GBR_FECABLE);
+	pdata->fec_ability &= (MDIO_PMA_10GBR_FECABLE_ABLE |
+			       MDIO_PMA_10GBR_FECABLE_ERRABLE);
+
+	/* Setup the phy (including supported features) */
+	ret = pdata->phy_if.phy_impl.init(pdata);
+	if (ret)
+		return ret;
+	pdata->phy.advertising = pdata->phy.supported;
+
+	pdata->phy.address = 0;
+
+	if (pdata->phy.advertising & ADVERTISED_Autoneg) {
+		pdata->phy.autoneg = AUTONEG_ENABLE;
+		pdata->phy.speed = SPEED_UNKNOWN;
+		pdata->phy.duplex = DUPLEX_UNKNOWN;
+	} else {
+		pdata->phy.autoneg = AUTONEG_DISABLE;
+		pdata->phy.speed = axgbe_phy_best_advertised_speed(pdata);
+		pdata->phy.duplex = DUPLEX_FULL;
+	}
+
+	pdata->phy.link = 0;
+
+	pdata->phy.pause_autoneg = pdata->pause_autoneg;
+	pdata->phy.tx_pause = pdata->tx_pause;
+	pdata->phy.rx_pause = pdata->rx_pause;
+
+	/* Fix up Flow Control advertising */
+	pdata->phy.advertising &= ~ADVERTISED_Pause;
+	pdata->phy.advertising &= ~ADVERTISED_Asym_Pause;
+
+	if (pdata->rx_pause) {
+		pdata->phy.advertising |= ADVERTISED_Pause;
+		pdata->phy.advertising |= ADVERTISED_Asym_Pause;
+	}
+
+	if (pdata->tx_pause)
+		pdata->phy.advertising ^= ADVERTISED_Asym_Pause;
+	return 0;
+}
+
+void axgbe_init_function_ptrs_phy(struct axgbe_phy_if *phy_if)
+{
+	phy_if->phy_init        = axgbe_phy_init;
+}
diff --git a/drivers/net/axgbe/axgbe_phy_impl.c b/drivers/net/axgbe/axgbe_phy_impl.c
new file mode 100644
index 0000000..cea4266
--- /dev/null
+++ b/drivers/net/axgbe/axgbe_phy_impl.c
@@ -0,0 +1,799 @@
+/*-
+ *   Copyright(c) 2014-2017 Advanced Micro Devices, Inc.
+ *   All rights reserved.
+ *
+ *   AMD 10Gb Ethernet driver
+ *
+ *   This file is available to you under your choice of the following two
+ *   licenses:
+ *
+ *   License 1: GPLv2
+ *
+ *   Copyright (c) 2017 Advanced Micro Devices, Inc.
+ *
+ *   This file is free software; you may copy, redistribute and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 2 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This file is distributed in the hope that it will be useful, but
+ *   WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ *   General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ *
+ *   This file incorporates work covered by the following copyright and
+ *   permission notice:
+ *
+ *   Copyright (c) 2013 Synopsys, Inc.
+ *
+ *   The Synopsys DWC ETHER XGMAC Software Driver and documentation
+ *   (hereinafter "Software") is an unsupported proprietary work of Synopsys,
+ *   Inc. unless otherwise expressly agreed to in writing between Synopsys
+ *   and you.
+ *
+ *   The Software IS NOT an item of Licensed Software or Licensed Product
+ *   under any End User Software License Agreement or Agreement for Licensed
+ *   Product with Synopsys or any supplement thereto. Permission is hereby
+ *   granted, free of charge, to any person obtaining a copy of this software
+ *   annotated with this license and the Software, to deal in the Software
+ *   without restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ *   of the Software, and to permit persons to whom the Software is furnished
+ *   to do so, subject to the following conditions:
+ *
+ *   The above copyright notice and this permission notice shall be included
+ *   in all copies or substantial portions of the Software.
+ *
+ *   THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
+ *   BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ *   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ *   PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
+ *   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ *   THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *   License 2: Modified BSD
+ *
+ *   Copyright (c) 2017 Advanced Micro Devices, Inc.
+ *   All rights reserved.
+ *
+ *   Redistribution and use in source and binary forms, with or without
+ *   modification, are permitted provided that the following conditions
+ *   are met:
+ *
+ *     * Redistributions of source code must retain the above copyright
+ *       notice, this list of conditions and the following disclaimer.
+ *     * Redistributions in binary form must reproduce the above copyright
+ *       notice, this list of conditions and the following disclaimer in the
+ *       documentation and/or other materials provided with the distribution.
+ *     * Neither the name of Advanced Micro Devices, Inc. nor the
+ *       names of its contributors may be used to endorse or promote products
+ *       derived from this software without specific prior written permission.
+ *
+ *   THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ *   "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ *   LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ *   A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
+ *   <COPYRIGHT HOLDER> BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ *   SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ *   LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+ *   DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+ *   THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+ *   (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ *   OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ *
+ *   This file incorporates work covered by the following copyright and
+ *   permission notice:
+ *
+ *   Copyright (c) 2013 Synopsys, Inc.
+ *
+ *   The Synopsys DWC ETHER XGMAC Software Driver and documentation
+ *   (hereinafter "Software") is an unsupported proprietary work of Synopsys,
+ *   Inc. unless otherwise expressly agreed to in writing between Synopsys
+ *   and you.
+ *
+ *   The Software IS NOT an item of Licensed Software or Licensed Product
+ *   under any End User Software License Agreement or Agreement for Licensed
+ *   Product with Synopsys or any supplement thereto. Permission is hereby
+ *   granted, free of charge, to any person obtaining a copy of this software
+ *   annotated with this license and the Software, to deal in the Software
+ *   without restriction, including without limitation the rights to use,
+ *   copy, modify, merge, publish, distribute, sublicense, and/or sell copies
+ *   of the Software, and to permit persons to whom the Software is furnished
+ *   to do so, subject to the following conditions:
+ *
+ *   The above copyright notice and this permission notice shall be included
+ *   in all copies or substantial portions of the Software.
+ *
+ *   THIS SOFTWARE IS BEING DISTRIBUTED BY SYNOPSYS SOLELY ON AN "AS IS"
+ *   BASIS AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
+ *   TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ *   PARTICULAR PURPOSE ARE HEREBY DISCLAIMED. IN NO EVENT SHALL SYNOPSYS
+ *   BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ *   CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ *   SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ *   INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ *   CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ *   ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+ *   THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#include "axgbe_ethdev.h"
+#include "axgbe_common.h"
+#include "axgbe_phy.h"
+
+#define AXGBE_PHY_PORT_SPEED_100	BIT(0)
+#define AXGBE_PHY_PORT_SPEED_1000	BIT(1)
+#define AXGBE_PHY_PORT_SPEED_2500	BIT(2)
+#define AXGBE_PHY_PORT_SPEED_10000	BIT(3)
+
+#define AXGBE_MUTEX_RELEASE		0x80000000
+
+#define AXGBE_SFP_DIRECT		7
+
+/* I2C target addresses */
+#define AXGBE_SFP_SERIAL_ID_ADDRESS	0x50
+#define AXGBE_SFP_DIAG_INFO_ADDRESS	0x51
+#define AXGBE_SFP_PHY_ADDRESS		0x56
+#define AXGBE_GPIO_ADDRESS_PCA9555	0x20
+
+/* SFP sideband signal indicators */
+#define AXGBE_GPIO_NO_TX_FAULT		BIT(0)
+#define AXGBE_GPIO_NO_RATE_SELECT	BIT(1)
+#define AXGBE_GPIO_NO_MOD_ABSENT	BIT(2)
+#define AXGBE_GPIO_NO_RX_LOS		BIT(3)
+
+/* Rate-change complete wait/retry count */
+#define AXGBE_RATECHANGE_COUNT		500
+
+enum axgbe_port_mode {
+	AXGBE_PORT_MODE_RSVD = 0,
+	AXGBE_PORT_MODE_BACKPLANE,
+	AXGBE_PORT_MODE_BACKPLANE_2500,
+	AXGBE_PORT_MODE_1000BASE_T,
+	AXGBE_PORT_MODE_1000BASE_X,
+	AXGBE_PORT_MODE_NBASE_T,
+	AXGBE_PORT_MODE_10GBASE_T,
+	AXGBE_PORT_MODE_10GBASE_R,
+	AXGBE_PORT_MODE_SFP,
+	AXGBE_PORT_MODE_MAX,
+};
+
+enum axgbe_conn_type {
+	AXGBE_CONN_TYPE_NONE = 0,
+	AXGBE_CONN_TYPE_SFP,
+	AXGBE_CONN_TYPE_MDIO,
+	AXGBE_CONN_TYPE_RSVD1,
+	AXGBE_CONN_TYPE_BACKPLANE,
+	AXGBE_CONN_TYPE_MAX,
+};
+
+/* SFP/SFP+ related definitions */
+enum axgbe_sfp_comm {
+	AXGBE_SFP_COMM_DIRECT = 0,
+	AXGBE_SFP_COMM_PCA9545,
+};
+
+enum axgbe_sfp_cable {
+	AXGBE_SFP_CABLE_UNKNOWN = 0,
+	AXGBE_SFP_CABLE_ACTIVE,
+	AXGBE_SFP_CABLE_PASSIVE,
+};
+
+enum axgbe_sfp_base {
+	AXGBE_SFP_BASE_UNKNOWN = 0,
+	AXGBE_SFP_BASE_1000_T,
+	AXGBE_SFP_BASE_1000_SX,
+	AXGBE_SFP_BASE_1000_LX,
+	AXGBE_SFP_BASE_1000_CX,
+	AXGBE_SFP_BASE_10000_SR,
+	AXGBE_SFP_BASE_10000_LR,
+	AXGBE_SFP_BASE_10000_LRM,
+	AXGBE_SFP_BASE_10000_ER,
+	AXGBE_SFP_BASE_10000_CR,
+};
+
+enum axgbe_sfp_speed {
+	AXGBE_SFP_SPEED_UNKNOWN = 0,
+	AXGBE_SFP_SPEED_100_1000,
+	AXGBE_SFP_SPEED_1000,
+	AXGBE_SFP_SPEED_10000,
+};
+
+/* SFP Serial ID Base ID values relative to an offset of 0 */
+#define AXGBE_SFP_BASE_ID			0
+#define AXGBE_SFP_ID_SFP			0x03
+
+#define AXGBE_SFP_BASE_EXT_ID			1
+#define AXGBE_SFP_EXT_ID_SFP			0x04
+
+#define AXGBE_SFP_BASE_10GBE_CC			3
+#define AXGBE_SFP_BASE_10GBE_CC_SR		BIT(4)
+#define AXGBE_SFP_BASE_10GBE_CC_LR		BIT(5)
+#define AXGBE_SFP_BASE_10GBE_CC_LRM		BIT(6)
+#define AXGBE_SFP_BASE_10GBE_CC_ER		BIT(7)
+
+#define AXGBE_SFP_BASE_1GBE_CC			6
+#define AXGBE_SFP_BASE_1GBE_CC_SX		BIT(0)
+#define AXGBE_SFP_BASE_1GBE_CC_LX		BIT(1)
+#define AXGBE_SFP_BASE_1GBE_CC_CX		BIT(2)
+#define AXGBE_SFP_BASE_1GBE_CC_T		BIT(3)
+
+#define AXGBE_SFP_BASE_CABLE			8
+#define AXGBE_SFP_BASE_CABLE_PASSIVE		BIT(2)
+#define AXGBE_SFP_BASE_CABLE_ACTIVE		BIT(3)
+
+#define AXGBE_SFP_BASE_BR			12
+#define AXGBE_SFP_BASE_BR_1GBE_MIN		0x0a
+#define AXGBE_SFP_BASE_BR_1GBE_MAX		0x0d
+#define AXGBE_SFP_BASE_BR_10GBE_MIN		0x64
+#define AXGBE_SFP_BASE_BR_10GBE_MAX		0x68
+
+#define AXGBE_SFP_BASE_CU_CABLE_LEN		18
+
+#define AXGBE_SFP_BASE_VENDOR_NAME		20
+#define AXGBE_SFP_BASE_VENDOR_NAME_LEN		16
+#define AXGBE_SFP_BASE_VENDOR_PN		40
+#define AXGBE_SFP_BASE_VENDOR_PN_LEN		16
+#define AXGBE_SFP_BASE_VENDOR_REV		56
+#define AXGBE_SFP_BASE_VENDOR_REV_LEN		4
+
+#define AXGBE_SFP_BASE_CC			63
+
+/* SFP Serial ID Extended ID values relative to an offset of 64 */
+#define AXGBE_SFP_BASE_VENDOR_SN		4
+#define AXGBE_SFP_BASE_VENDOR_SN_LEN		16
+
+#define AXGBE_SFP_EXTD_DIAG			28
+#define AXGBE_SFP_EXTD_DIAG_ADDR_CHANGE		BIT(2)
+
+#define AXGBE_SFP_EXTD_SFF_8472			30
+
+#define AXGBE_SFP_EXTD_CC			31
+
+struct axgbe_sfp_eeprom {
+	u8 base[64];
+	u8 extd[32];
+	u8 vendor[32];
+};
+
+#define AXGBE_BEL_FUSE_VENDOR	"BEL-FUSE"
+#define AXGBE_BEL_FUSE_PARTNO	"1GBT-SFP06"
+
+struct axgbe_sfp_ascii {
+	union {
+		char vendor[AXGBE_SFP_BASE_VENDOR_NAME_LEN + 1];
+		char partno[AXGBE_SFP_BASE_VENDOR_PN_LEN + 1];
+		char rev[AXGBE_SFP_BASE_VENDOR_REV_LEN + 1];
+		char serno[AXGBE_SFP_BASE_VENDOR_SN_LEN + 1];
+	} u;
+};
+
+/* MDIO PHY reset types */
+enum axgbe_mdio_reset {
+	AXGBE_MDIO_RESET_NONE = 0,
+	AXGBE_MDIO_RESET_I2C_GPIO,
+	AXGBE_MDIO_RESET_INT_GPIO,
+	AXGBE_MDIO_RESET_MAX,
+};
+
+/* Re-driver related definitions */
+enum axgbe_phy_redrv_if {
+	AXGBE_PHY_REDRV_IF_MDIO = 0,
+	AXGBE_PHY_REDRV_IF_I2C,
+	AXGBE_PHY_REDRV_IF_MAX,
+};
+
+enum axgbe_phy_redrv_model {
+	AXGBE_PHY_REDRV_MODEL_4223 = 0,
+	AXGBE_PHY_REDRV_MODEL_4227,
+	AXGBE_PHY_REDRV_MODEL_MAX,
+};
+
+enum axgbe_phy_redrv_mode {
+	AXGBE_PHY_REDRV_MODE_CX = 5,
+	AXGBE_PHY_REDRV_MODE_SR = 9,
+};
+
+#define AXGBE_PHY_REDRV_MODE_REG	0x12b0
+
+/* PHY related configuration information */
+struct axgbe_phy_data {
+	enum axgbe_port_mode port_mode;
+
+	unsigned int port_id;
+
+	unsigned int port_speeds;
+
+	enum axgbe_conn_type conn_type;
+
+	enum axgbe_mode cur_mode;
+	enum axgbe_mode start_mode;
+
+	unsigned int rrc_count;
+
+	unsigned int mdio_addr;
+
+	unsigned int comm_owned;
+
+	/* SFP Support */
+	enum axgbe_sfp_comm sfp_comm;
+	unsigned int sfp_mux_address;
+	unsigned int sfp_mux_channel;
+
+	unsigned int sfp_gpio_address;
+	unsigned int sfp_gpio_mask;
+	unsigned int sfp_gpio_rx_los;
+	unsigned int sfp_gpio_tx_fault;
+	unsigned int sfp_gpio_mod_absent;
+	unsigned int sfp_gpio_rate_select;
+
+	unsigned int sfp_rx_los;
+	unsigned int sfp_tx_fault;
+	unsigned int sfp_mod_absent;
+	unsigned int sfp_diags;
+	unsigned int sfp_changed;
+	unsigned int sfp_phy_avail;
+	unsigned int sfp_cable_len;
+	enum axgbe_sfp_base sfp_base;
+	enum axgbe_sfp_cable sfp_cable;
+	enum axgbe_sfp_speed sfp_speed;
+	struct axgbe_sfp_eeprom sfp_eeprom;
+
+	/* External PHY support */
+	enum axgbe_mdio_mode phydev_mode;
+	enum axgbe_mdio_reset mdio_reset;
+	unsigned int mdio_reset_addr;
+	unsigned int mdio_reset_gpio;
+
+	/* Re-driver support */
+	unsigned int redrv;
+	unsigned int redrv_if;
+	unsigned int redrv_addr;
+	unsigned int redrv_lane;
+	unsigned int redrv_model;
+};
+
+static void axgbe_phy_sfp_gpio_setup(struct axgbe_port *pdata)
+{
+	struct axgbe_phy_data *phy_data = pdata->phy_data;
+	unsigned int reg;
+
+	reg = XP_IOREAD(pdata, XP_PROP_3);
+
+	phy_data->sfp_gpio_address = AXGBE_GPIO_ADDRESS_PCA9555 +
+		XP_GET_BITS(reg, XP_PROP_3, GPIO_ADDR);
+
+	phy_data->sfp_gpio_mask = XP_GET_BITS(reg, XP_PROP_3, GPIO_MASK);
+
+	phy_data->sfp_gpio_rx_los = XP_GET_BITS(reg, XP_PROP_3,
+						GPIO_RX_LOS);
+	phy_data->sfp_gpio_tx_fault = XP_GET_BITS(reg, XP_PROP_3,
+						  GPIO_TX_FAULT);
+	phy_data->sfp_gpio_mod_absent = XP_GET_BITS(reg, XP_PROP_3,
+						    GPIO_MOD_ABS);
+	phy_data->sfp_gpio_rate_select = XP_GET_BITS(reg, XP_PROP_3,
+						     GPIO_RATE_SELECT);
+}
+
+static void axgbe_phy_sfp_comm_setup(struct axgbe_port *pdata)
+{
+	struct axgbe_phy_data *phy_data = pdata->phy_data;
+	unsigned int reg, mux_addr_hi, mux_addr_lo;
+
+	reg = XP_IOREAD(pdata, XP_PROP_4);
+
+	mux_addr_hi = XP_GET_BITS(reg, XP_PROP_4, MUX_ADDR_HI);
+	mux_addr_lo = XP_GET_BITS(reg, XP_PROP_4, MUX_ADDR_LO);
+	if (mux_addr_lo == AXGBE_SFP_DIRECT)
+		return;
+
+	phy_data->sfp_comm = AXGBE_SFP_COMM_PCA9545;
+	phy_data->sfp_mux_address = (mux_addr_hi << 2) + mux_addr_lo;
+	phy_data->sfp_mux_channel = XP_GET_BITS(reg, XP_PROP_4, MUX_CHAN);
+}
+
+static void axgbe_phy_sfp_setup(struct axgbe_port *pdata)
+{
+	axgbe_phy_sfp_comm_setup(pdata);
+	axgbe_phy_sfp_gpio_setup(pdata);
+}
+
+static bool axgbe_phy_redrv_error(struct axgbe_phy_data *phy_data)
+{
+	if (!phy_data->redrv)
+		return false;
+
+	if (phy_data->redrv_if >= AXGBE_PHY_REDRV_IF_MAX)
+		return true;
+
+	switch (phy_data->redrv_model) {
+	case AXGBE_PHY_REDRV_MODEL_4223:
+		if (phy_data->redrv_lane > 3)
+			return true;
+		break;
+	case AXGBE_PHY_REDRV_MODEL_4227:
+		if (phy_data->redrv_lane > 1)
+			return true;
+		break;
+	default:
+		return true;
+	}
+
+	return false;
+}
+
+static int axgbe_phy_mdio_reset_setup(struct axgbe_port *pdata)
+{
+	struct axgbe_phy_data *phy_data = pdata->phy_data;
+	unsigned int reg;
+
+	if (phy_data->conn_type != AXGBE_CONN_TYPE_MDIO)
+		return 0;
+	reg = XP_IOREAD(pdata, XP_PROP_3);
+	phy_data->mdio_reset = XP_GET_BITS(reg, XP_PROP_3, MDIO_RESET);
+	switch (phy_data->mdio_reset) {
+	case AXGBE_MDIO_RESET_NONE:
+	case AXGBE_MDIO_RESET_I2C_GPIO:
+	case AXGBE_MDIO_RESET_INT_GPIO:
+		break;
+	default:
+		PMD_DRV_LOG(ERR, "unsupported MDIO reset (%#x)\n",
+			    phy_data->mdio_reset);
+		return -EINVAL;
+	}
+	if (phy_data->mdio_reset == AXGBE_MDIO_RESET_I2C_GPIO) {
+		phy_data->mdio_reset_addr = AXGBE_GPIO_ADDRESS_PCA9555 +
+			XP_GET_BITS(reg, XP_PROP_3,
+				    MDIO_RESET_I2C_ADDR);
+		phy_data->mdio_reset_gpio = XP_GET_BITS(reg, XP_PROP_3,
+							MDIO_RESET_I2C_GPIO);
+	} else if (phy_data->mdio_reset == AXGBE_MDIO_RESET_INT_GPIO) {
+		phy_data->mdio_reset_gpio = XP_GET_BITS(reg, XP_PROP_3,
+							MDIO_RESET_INT_GPIO);
+	}
+
+	return 0;
+}
+
+static bool axgbe_phy_port_mode_mismatch(struct axgbe_port *pdata)
+{
+	struct axgbe_phy_data *phy_data = pdata->phy_data;
+
+	switch (phy_data->port_mode) {
+	case AXGBE_PORT_MODE_BACKPLANE:
+		if ((phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_1000) ||
+		    (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_10000))
+			return false;
+		break;
+	case AXGBE_PORT_MODE_BACKPLANE_2500:
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_2500)
+			return false;
+		break;
+	case AXGBE_PORT_MODE_1000BASE_T:
+		if ((phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_100) ||
+		    (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_1000))
+			return false;
+		break;
+	case AXGBE_PORT_MODE_1000BASE_X:
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_1000)
+			return false;
+		break;
+	case AXGBE_PORT_MODE_NBASE_T:
+		if ((phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_100) ||
+		    (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_1000) ||
+		    (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_2500))
+			return false;
+		break;
+	case AXGBE_PORT_MODE_10GBASE_T:
+		if ((phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_100) ||
+		    (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_1000) ||
+		    (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_10000))
+			return false;
+		break;
+	case AXGBE_PORT_MODE_10GBASE_R:
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_10000)
+			return false;
+		break;
+	case AXGBE_PORT_MODE_SFP:
+		if ((phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_100) ||
+		    (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_1000) ||
+		    (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_10000))
+			return false;
+		break;
+	default:
+		break;
+	}
+
+	return true;
+}
+
+static bool axgbe_phy_conn_type_mismatch(struct axgbe_port *pdata)
+{
+	struct axgbe_phy_data *phy_data = pdata->phy_data;
+
+	switch (phy_data->port_mode) {
+	case AXGBE_PORT_MODE_BACKPLANE:
+	case AXGBE_PORT_MODE_BACKPLANE_2500:
+		if (phy_data->conn_type == AXGBE_CONN_TYPE_BACKPLANE)
+			return false;
+		break;
+	case AXGBE_PORT_MODE_1000BASE_T:
+	case AXGBE_PORT_MODE_1000BASE_X:
+	case AXGBE_PORT_MODE_NBASE_T:
+	case AXGBE_PORT_MODE_10GBASE_T:
+	case AXGBE_PORT_MODE_10GBASE_R:
+		if (phy_data->conn_type == AXGBE_CONN_TYPE_MDIO)
+			return false;
+		break;
+	case AXGBE_PORT_MODE_SFP:
+		if (phy_data->conn_type == AXGBE_CONN_TYPE_SFP)
+			return false;
+		break;
+	default:
+		break;
+	}
+
+	return true;
+}
+
+static bool axgbe_phy_port_enabled(struct axgbe_port *pdata)
+{
+	unsigned int reg;
+
+	reg = XP_IOREAD(pdata, XP_PROP_0);
+	if (!XP_GET_BITS(reg, XP_PROP_0, PORT_SPEEDS))
+		return false;
+	if (!XP_GET_BITS(reg, XP_PROP_0, CONN_TYPE))
+		return false;
+
+	return true;
+}
+
+static int axgbe_phy_init(struct axgbe_port *pdata)
+{
+	struct axgbe_phy_data *phy_data;
+	unsigned int reg;
+	int ret;
+
+	/* Check if enabled */
+	if (!axgbe_phy_port_enabled(pdata)) {
+		PMD_DRV_LOG(ERR, "device is not enabled");
+		return -ENODEV;
+	}
+
+	/* Initialize the I2C controller */
+	ret = pdata->i2c_if.i2c_init(pdata);
+	if (ret)
+		return ret;
+
+	phy_data = rte_zmalloc("phy_data memory", sizeof(*phy_data), 0);
+	if (!phy_data) {
+		PMD_DRV_LOG(ERR, "phy_data allocation failed");
+		return -ENOMEM;
+	}
+	pdata->phy_data = phy_data;
+
+	reg = XP_IOREAD(pdata, XP_PROP_0);
+	phy_data->port_mode = XP_GET_BITS(reg, XP_PROP_0, PORT_MODE);
+	phy_data->port_id = XP_GET_BITS(reg, XP_PROP_0, PORT_ID);
+	phy_data->port_speeds = XP_GET_BITS(reg, XP_PROP_0, PORT_SPEEDS);
+	phy_data->conn_type = XP_GET_BITS(reg, XP_PROP_0, CONN_TYPE);
+	phy_data->mdio_addr = XP_GET_BITS(reg, XP_PROP_0, MDIO_ADDR);
+
+	reg = XP_IOREAD(pdata, XP_PROP_4);
+	phy_data->redrv = XP_GET_BITS(reg, XP_PROP_4, REDRV_PRESENT);
+	phy_data->redrv_if = XP_GET_BITS(reg, XP_PROP_4, REDRV_IF);
+	phy_data->redrv_addr = XP_GET_BITS(reg, XP_PROP_4, REDRV_ADDR);
+	phy_data->redrv_lane = XP_GET_BITS(reg, XP_PROP_4, REDRV_LANE);
+	phy_data->redrv_model = XP_GET_BITS(reg, XP_PROP_4, REDRV_MODEL);
+
+	/* Validate the connection requested */
+	if (axgbe_phy_conn_type_mismatch(pdata)) {
+		PMD_DRV_LOG(ERR, "phy mode/connection mismatch (%#x/%#x)",
+			    phy_data->port_mode, phy_data->conn_type);
+		return -EINVAL;
+	}
+
+	/* Validate the mode requested */
+	if (axgbe_phy_port_mode_mismatch(pdata)) {
+		PMD_DRV_LOG(ERR, "phy mode/speed mismatch (%#x/%#x)",
+			    phy_data->port_mode, phy_data->port_speeds);
+		return -EINVAL;
+	}
+
+	/* Check for and validate MDIO reset support */
+	ret = axgbe_phy_mdio_reset_setup(pdata);
+	if (ret)
+		return ret;
+
+	/* Validate the re-driver information */
+	if (axgbe_phy_redrv_error(phy_data)) {
+		PMD_DRV_LOG(ERR, "phy re-driver settings error");
+		return -EINVAL;
+	}
+	pdata->kr_redrv = phy_data->redrv;
+
+	/* Indicate current mode is unknown */
+	phy_data->cur_mode = AXGBE_MODE_UNKNOWN;
+
+	/* Initialize supported features */
+	pdata->phy.supported = 0;
+
+	switch (phy_data->port_mode) {
+		/* Backplane support */
+	case AXGBE_PORT_MODE_BACKPLANE:
+		pdata->phy.supported |= SUPPORTED_Autoneg;
+		pdata->phy.supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+		pdata->phy.supported |= SUPPORTED_Backplane;
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_1000) {
+			pdata->phy.supported |= SUPPORTED_1000baseKX_Full;
+			phy_data->start_mode = AXGBE_MODE_KX_1000;
+		}
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_10000) {
+			pdata->phy.supported |= SUPPORTED_10000baseKR_Full;
+			if (pdata->fec_ability & MDIO_PMA_10GBR_FECABLE_ABLE)
+				pdata->phy.supported |=
+					SUPPORTED_10000baseR_FEC;
+			phy_data->start_mode = AXGBE_MODE_KR;
+		}
+
+		phy_data->phydev_mode = AXGBE_MDIO_MODE_NONE;
+		break;
+	case AXGBE_PORT_MODE_BACKPLANE_2500:
+		pdata->phy.supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+		pdata->phy.supported |= SUPPORTED_Backplane;
+		pdata->phy.supported |= SUPPORTED_2500baseX_Full;
+		phy_data->start_mode = AXGBE_MODE_KX_2500;
+
+		phy_data->phydev_mode = AXGBE_MDIO_MODE_NONE;
+		break;
+
+		/* MDIO 1GBase-T support */
+	case AXGBE_PORT_MODE_1000BASE_T:
+		pdata->phy.supported |= SUPPORTED_Autoneg;
+		pdata->phy.supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+		pdata->phy.supported |= SUPPORTED_TP;
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_100) {
+			pdata->phy.supported |= SUPPORTED_100baseT_Full;
+			phy_data->start_mode = AXGBE_MODE_SGMII_100;
+		}
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_1000) {
+			pdata->phy.supported |= SUPPORTED_1000baseT_Full;
+			phy_data->start_mode = AXGBE_MODE_SGMII_1000;
+		}
+
+		phy_data->phydev_mode = AXGBE_MDIO_MODE_CL22;
+		break;
+
+		/* MDIO Base-X support */
+	case AXGBE_PORT_MODE_1000BASE_X:
+		pdata->phy.supported |= SUPPORTED_Autoneg;
+		pdata->phy.supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+		pdata->phy.supported |= SUPPORTED_FIBRE;
+		pdata->phy.supported |= SUPPORTED_1000baseT_Full;
+		phy_data->start_mode = AXGBE_MODE_X;
+
+		phy_data->phydev_mode = AXGBE_MDIO_MODE_CL22;
+		break;
+
+		/* MDIO NBase-T support */
+	case AXGBE_PORT_MODE_NBASE_T:
+		pdata->phy.supported |= SUPPORTED_Autoneg;
+		pdata->phy.supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+		pdata->phy.supported |= SUPPORTED_TP;
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_100) {
+			pdata->phy.supported |= SUPPORTED_100baseT_Full;
+			phy_data->start_mode = AXGBE_MODE_SGMII_100;
+		}
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_1000) {
+			pdata->phy.supported |= SUPPORTED_1000baseT_Full;
+			phy_data->start_mode = AXGBE_MODE_SGMII_1000;
+		}
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_2500) {
+			pdata->phy.supported |= SUPPORTED_2500baseX_Full;
+			phy_data->start_mode = AXGBE_MODE_KX_2500;
+		}
+
+		phy_data->phydev_mode = AXGBE_MDIO_MODE_CL45;
+		break;
+
+		/* 10GBase-T support */
+	case AXGBE_PORT_MODE_10GBASE_T:
+		pdata->phy.supported |= SUPPORTED_Autoneg;
+		pdata->phy.supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+		pdata->phy.supported |= SUPPORTED_TP;
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_100) {
+			pdata->phy.supported |= SUPPORTED_100baseT_Full;
+			phy_data->start_mode = AXGBE_MODE_SGMII_100;
+		}
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_1000) {
+			pdata->phy.supported |= SUPPORTED_1000baseT_Full;
+			phy_data->start_mode = AXGBE_MODE_SGMII_1000;
+		}
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_10000) {
+			pdata->phy.supported |= SUPPORTED_10000baseT_Full;
+			phy_data->start_mode = AXGBE_MODE_KR;
+		}
+
+		phy_data->phydev_mode = AXGBE_MDIO_MODE_NONE;
+		break;
+
+		/* 10GBase-R support */
+	case AXGBE_PORT_MODE_10GBASE_R:
+		pdata->phy.supported |= SUPPORTED_Autoneg;
+		pdata->phy.supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+		pdata->phy.supported |= SUPPORTED_TP;
+		pdata->phy.supported |= SUPPORTED_10000baseT_Full;
+		if (pdata->fec_ability & MDIO_PMA_10GBR_FECABLE_ABLE)
+			pdata->phy.supported |= SUPPORTED_10000baseR_FEC;
+		phy_data->start_mode = AXGBE_MODE_SFI;
+
+		phy_data->phydev_mode = AXGBE_MDIO_MODE_NONE;
+		break;
+
+		/* SFP support */
+	case AXGBE_PORT_MODE_SFP:
+		pdata->phy.supported |= SUPPORTED_Autoneg;
+		pdata->phy.supported |= SUPPORTED_Pause | SUPPORTED_Asym_Pause;
+		pdata->phy.supported |= SUPPORTED_TP;
+		pdata->phy.supported |= SUPPORTED_FIBRE;
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_100) {
+			pdata->phy.supported |= SUPPORTED_100baseT_Full;
+			phy_data->start_mode = AXGBE_MODE_SGMII_100;
+		}
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_1000) {
+			pdata->phy.supported |= SUPPORTED_1000baseT_Full;
+			phy_data->start_mode = AXGBE_MODE_SGMII_1000;
+		}
+		if (phy_data->port_speeds & AXGBE_PHY_PORT_SPEED_10000) {
+			pdata->phy.supported |= SUPPORTED_10000baseT_Full;
+			phy_data->start_mode = AXGBE_MODE_SFI;
+			if (pdata->fec_ability & MDIO_PMA_10GBR_FECABLE_ABLE)
+				pdata->phy.supported |=
+					SUPPORTED_10000baseR_FEC;
+		}
+
+		phy_data->phydev_mode = AXGBE_MDIO_MODE_CL22;
+
+		axgbe_phy_sfp_setup(pdata);
+		break;
+	default:
+		return -EINVAL;
+	}
+
+	if ((phy_data->conn_type & AXGBE_CONN_TYPE_MDIO) &&
+	    (phy_data->phydev_mode != AXGBE_MDIO_MODE_NONE)) {
+		ret = pdata->hw_if.set_ext_mii_mode(pdata, phy_data->mdio_addr,
+						    phy_data->phydev_mode);
+		if (ret) {
+			PMD_DRV_LOG(ERR, "mdio port/clause not compatible (%d/%u)",
+				    phy_data->mdio_addr, phy_data->phydev_mode);
+			return -EINVAL;
+		}
+	}
+
+	if (phy_data->redrv && !phy_data->redrv_if) {
+		ret = pdata->hw_if.set_ext_mii_mode(pdata, phy_data->redrv_addr,
+						    AXGBE_MDIO_MODE_CL22);
+		if (ret) {
+			PMD_DRV_LOG(ERR, "redriver mdio port not compatible (%u)",
+				    phy_data->redrv_addr);
+			return -EINVAL;
+		}
+	}
+	return 0;
+}
+void axgbe_init_function_ptrs_phy_v2(struct axgbe_phy_if *phy_if)
+{
+	struct axgbe_phy_impl_if *phy_impl = &phy_if->phy_impl;
+
+	phy_impl->init			= axgbe_phy_init;
+}