net: Add Gigabit Ethernet driver of Topcliff PCH

Signed-off-by: Masayuki Ohtake <masa-korg@dsn.okisemi.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

drivers/net/Kconfig

@@ -2515,6 +2515,18 @@ config S6GMAC
 
 source "drivers/net/stmmac/Kconfig"
 
+config PCH_GBE
+	tristate "PCH Gigabit Ethernet"
+	depends on PCI
+	---help---
+	  This is a gigabit ethernet driver for Topcliff PCH.
+	  Topcliff PCH is the platform controller hub that is used in Intel's
+	  general embedded platform.
+	  Topcliff PCH has Gigabit Ethernet interface.
+	  Using this interface, it is able to access system devices connected
+	  to Gigabit Ethernet.
+	  This driver enables Gigabit Ethernet function.
+
 endif # NETDEV_1000
 
 #

drivers/net/Makefile

@@ -298,3 +298,4 @@ obj-$(CONFIG_WIMAX) += wimax/
 obj-$(CONFIG_CAIF) += caif/
 
 obj-$(CONFIG_OCTEON_MGMT_ETHERNET) += octeon/
+obj-$(CONFIG_PCH_GBE) += pch_gbe/

drivers/net/pch_gbe/Makefile

+obj-$(CONFIG_PCH_GBE) += pch_gbe.o
+
+pch_gbe-y := pch_gbe_phy.o pch_gbe_ethtool.o pch_gbe_param.o
+pch_gbe-y += pch_gbe_api.o pch_gbe_main.o

drivers/net/pch_gbe/pch_gbe_api.c

+/*
+ * Copyright (C) 1999 - 2010 Intel Corporation.
+ * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
+ *
+ * This code was derived from the Intel e1000e Linux driver.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
+ */
+#include "pch_gbe.h"
+#include "pch_gbe_phy.h"
+
+/* bus type values */
+#define pch_gbe_bus_type_unknown	0
+#define pch_gbe_bus_type_pci		1
+#define pch_gbe_bus_type_pcix		2
+#define pch_gbe_bus_type_pci_express	3
+#define pch_gbe_bus_type_reserved	4
+
+/* bus speed values */
+#define pch_gbe_bus_speed_unknown	0
+#define pch_gbe_bus_speed_33		1
+#define pch_gbe_bus_speed_66		2
+#define pch_gbe_bus_speed_100		3
+#define pch_gbe_bus_speed_120		4
+#define pch_gbe_bus_speed_133		5
+#define pch_gbe_bus_speed_2500		6
+#define pch_gbe_bus_speed_reserved	7
+
+/* bus width values */
+#define pch_gbe_bus_width_unknown	0
+#define pch_gbe_bus_width_pcie_x1	1
+#define pch_gbe_bus_width_pcie_x2	2
+#define pch_gbe_bus_width_pcie_x4	4
+#define pch_gbe_bus_width_32		5
+#define pch_gbe_bus_width_64		6
+#define pch_gbe_bus_width_reserved	7
+
+/**
+ * pch_gbe_plat_get_bus_info - Obtain bus information for adapter
+ * @hw:	Pointer to the HW structure
+ */
+static void pch_gbe_plat_get_bus_info(struct pch_gbe_hw *hw)
+{
+	hw->bus.type  = pch_gbe_bus_type_pci_express;
+	hw->bus.speed = pch_gbe_bus_speed_2500;
+	hw->bus.width = pch_gbe_bus_width_pcie_x1;
+}
+
+/**
+ * pch_gbe_plat_init_hw - Initialize hardware
+ * @hw:	Pointer to the HW structure
+ * Returns
+ *	0:		Successfully
+ *	Negative value:	Failed-EBUSY
+ */
+static s32 pch_gbe_plat_init_hw(struct pch_gbe_hw *hw)
+{
+	s32 ret_val;
+
+	ret_val = pch_gbe_phy_get_id(hw);
+	if (ret_val) {
+		pr_err("pch_gbe_phy_get_id error\n");
+		return ret_val;
+	}
+	pch_gbe_phy_init_setting(hw);
+	/* Setup Mac interface option RGMII */
+#ifdef PCH_GBE_MAC_IFOP_RGMII
+	pch_gbe_phy_set_rgmii(hw);
+#endif
+	return ret_val;
+}
+
+static const struct pch_gbe_functions pch_gbe_ops = {
+	.get_bus_info      = pch_gbe_plat_get_bus_info,
+	.init_hw           = pch_gbe_plat_init_hw,
+	.read_phy_reg      = pch_gbe_phy_read_reg_miic,
+	.write_phy_reg     = pch_gbe_phy_write_reg_miic,
+	.reset_phy         = pch_gbe_phy_hw_reset,
+	.sw_reset_phy      = pch_gbe_phy_sw_reset,
+	.power_up_phy      = pch_gbe_phy_power_up,
+	.power_down_phy    = pch_gbe_phy_power_down,
+	.read_mac_addr     = pch_gbe_mac_read_mac_addr
+};
+
+/**
+ * pch_gbe_plat_init_function_pointers - Init func ptrs
+ * @hw:	Pointer to the HW structure
+ */
+void pch_gbe_plat_init_function_pointers(struct pch_gbe_hw *hw)
+{
+	/* Set PHY parameter */
+	hw->phy.reset_delay_us     = PCH_GBE_PHY_RESET_DELAY_US;
+	/* Set function pointers */
+	hw->func = &pch_gbe_ops;
+}
+
+/**
+ * pch_gbe_hal_setup_init_funcs - Initializes function pointers
+ * @hw:	Pointer to the HW structure
+ * Returns
+ *	0:	Successfully
+ *	ENOSYS:	Function is not registered
+ */
+inline s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw)
+{
+	if (!hw->reg) {
+		pr_err("ERROR: Registers not mapped\n");
+		return -ENOSYS;
+	}
+	pch_gbe_plat_init_function_pointers(hw);
+	return 0;
+}
+
+/**
+ * pch_gbe_hal_get_bus_info - Obtain bus information for adapter
+ * @hw:	Pointer to the HW structure
+ */
+inline void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw)
+{
+	if (!hw->func->get_bus_info)
+		pr_err("ERROR: configuration\n");
+	else
+		hw->func->get_bus_info(hw);
+}
+
+/**
+ * pch_gbe_hal_init_hw - Initialize hardware
+ * @hw:	Pointer to the HW structure
+ * Returns
+ *	0:	Successfully
+ *	ENOSYS:	Function is not registered
+ */
+inline s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw)
+{
+	if (!hw->func->init_hw) {
+		pr_err("ERROR: configuration\n");
+		return -ENOSYS;
+	}
+	return hw->func->init_hw(hw);
+}
+
+/**
+ * pch_gbe_hal_read_phy_reg - Reads PHY register
+ * @hw:	    Pointer to the HW structure
+ * @offset: The register to read
+ * @data:   The buffer to store the 16-bit read.
+ * Returns
+ *	0:	Successfully
+ *	Negative value:	Failed
+ */
+inline s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset,
+					u16 *data)
+{
+	if (!hw->func->read_phy_reg)
+		return 0;
+	return hw->func->read_phy_reg(hw, offset, data);
+}
+
+/**
+ * pch_gbe_hal_write_phy_reg - Writes PHY register
+ * @hw:	    Pointer to the HW structure
+ * @offset: The register to read
+ * @data:   The value to write.
+ * Returns
+ *	0:	Successfully
+ *	Negative value:	Failed
+ */
+inline s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset,
+					u16 data)
+{
+	if (!hw->func->write_phy_reg)
+		return 0;
+	return hw->func->write_phy_reg(hw, offset, data);
+}
+
+/**
+ * pch_gbe_hal_phy_hw_reset - Hard PHY reset
+ * @hw:	    Pointer to the HW structure
+ */
+inline void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw)
+{
+	if (!hw->func->reset_phy)
+		pr_err("ERROR: configuration\n");
+	else
+		hw->func->reset_phy(hw);
+}
+
+/**
+ * pch_gbe_hal_phy_sw_reset - Soft PHY reset
+ * @hw:	    Pointer to the HW structure
+ */
+inline void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw)
+{
+	if (!hw->func->sw_reset_phy)
+		pr_err("ERROR: configuration\n");
+	else
+		hw->func->sw_reset_phy(hw);
+}
+
+/**
+ * pch_gbe_hal_read_mac_addr - Reads MAC address
+ * @hw:	Pointer to the HW structure
+ * Returns
+ *	0:	Successfully
+ *	ENOSYS:	Function is not registered
+ */
+inline s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw)
+{
+	if (!hw->func->read_mac_addr) {
+		pr_err("ERROR: configuration\n");
+		return -ENOSYS;
+	}
+	return hw->func->read_mac_addr(hw);
+}
+
+/**
+ * pch_gbe_hal_power_up_phy - Power up PHY
+ * @hw:	Pointer to the HW structure
+ */
+inline void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw)
+{
+	if (hw->func->power_up_phy)
+		hw->func->power_up_phy(hw);
+}
+
+/**
+ * pch_gbe_hal_power_down_phy - Power down PHY
+ * @hw:	Pointer to the HW structure
+ */
+inline void pch_gbe_hal_power_down_phy(struct pch_gbe_hw *hw)
+{
+	if (hw->func->power_down_phy)
+		hw->func->power_down_phy(hw);
+}

drivers/net/pch_gbe/pch_gbe_api.h

+/*
+ * Copyright (C) 1999 - 2010 Intel Corporation.
+ * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
+ *
+ * This code was derived from the Intel e1000e Linux driver.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
+ */
+#ifndef _PCH_GBE_API_H_
+#define _PCH_GBE_API_H_
+
+#include "pch_gbe_phy.h"
+
+s32 pch_gbe_hal_setup_init_funcs(struct pch_gbe_hw *hw);
+void pch_gbe_hal_get_bus_info(struct pch_gbe_hw *hw);
+s32 pch_gbe_hal_init_hw(struct pch_gbe_hw *hw);
+s32 pch_gbe_hal_read_phy_reg(struct pch_gbe_hw *hw, u32 offset, u16 *data);
+s32 pch_gbe_hal_write_phy_reg(struct pch_gbe_hw *hw, u32 offset, u16 data);
+void pch_gbe_hal_phy_hw_reset(struct pch_gbe_hw *hw);
+void pch_gbe_hal_phy_sw_reset(struct pch_gbe_hw *hw);
+s32 pch_gbe_hal_read_mac_addr(struct pch_gbe_hw *hw);
+void pch_gbe_hal_power_up_phy(struct pch_gbe_hw *hw);
+void pch_gbe_hal_power_down_phy(struct pch_gbe_hw *hw);
+
+#endif

drivers/net/pch_gbe/pch_gbe_phy.c

+/*
+ * Copyright (C) 1999 - 2010 Intel Corporation.
+ * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
+ *
+ * This code was derived from the Intel e1000e Linux driver.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
+ */
+
+#include "pch_gbe.h"
+#include "pch_gbe_phy.h"
+
+#define PHY_MAX_REG_ADDRESS   0x1F	/* 5 bit address bus (0-0x1F) */
+
+/* PHY 1000 MII Register/Bit Definitions */
+/* PHY Registers defined by IEEE */
+#define PHY_CONTROL           0x00  /* Control Register */
+#define PHY_STATUS            0x01  /* Status Regiser */
+#define PHY_ID1               0x02  /* Phy Id Register (word 1) */
+#define PHY_ID2               0x03  /* Phy Id Register (word 2) */
+#define PHY_AUTONEG_ADV       0x04  /* Autoneg Advertisement */
+#define PHY_LP_ABILITY        0x05  /* Link Partner Ability (Base Page) */
+#define PHY_AUTONEG_EXP       0x06  /* Autoneg Expansion Register */
+#define PHY_NEXT_PAGE_TX      0x07  /* Next Page TX */
+#define PHY_LP_NEXT_PAGE      0x08  /* Link Partner Next Page */
+#define PHY_1000T_CTRL        0x09  /* 1000Base-T Control Register */
+#define PHY_1000T_STATUS      0x0A  /* 1000Base-T Status Register */
+#define PHY_EXT_STATUS        0x0F  /* Extended Status Register */
+#define PHY_PHYSP_CONTROL     0x10  /* PHY Specific Control Register */
+#define PHY_EXT_PHYSP_CONTROL 0x14  /* Extended PHY Specific Control Register */
+#define PHY_LED_CONTROL       0x18  /* LED Control Register */
+#define PHY_EXT_PHYSP_STATUS  0x1B  /* Extended PHY Specific Status Register */
+
+/* PHY Control Register */
+#define MII_CR_SPEED_SELECT_MSB 0x0040	/* bits 6,13: 10=1000, 01=100, 00=10 */
+#define MII_CR_COLL_TEST_ENABLE 0x0080	/* Collision test enable */
+#define MII_CR_FULL_DUPLEX      0x0100	/* FDX =1, half duplex =0 */
+#define MII_CR_RESTART_AUTO_NEG 0x0200	/* Restart auto negotiation */
+#define MII_CR_ISOLATE          0x0400	/* Isolate PHY from MII */
+#define MII_CR_POWER_DOWN       0x0800	/* Power down */
+#define MII_CR_AUTO_NEG_EN      0x1000	/* Auto Neg Enable */
+#define MII_CR_SPEED_SELECT_LSB 0x2000	/* bits 6,13: 10=1000, 01=100, 00=10 */
+#define MII_CR_LOOPBACK         0x4000	/* 0 = normal, 1 = loopback */
+#define MII_CR_RESET            0x8000	/* 0 = normal, 1 = PHY reset */
+#define MII_CR_SPEED_1000       0x0040
+#define MII_CR_SPEED_100        0x2000
+#define MII_CR_SPEED_10         0x0000
+
+/* PHY Status Register */
+#define MII_SR_EXTENDED_CAPS     0x0001	/* Extended register capabilities */
+#define MII_SR_JABBER_DETECT     0x0002	/* Jabber Detected */
+#define MII_SR_LINK_STATUS       0x0004	/* Link Status 1 = link */
+#define MII_SR_AUTONEG_CAPS      0x0008	/* Auto Neg Capable */
+#define MII_SR_REMOTE_FAULT      0x0010	/* Remote Fault Detect */
+#define MII_SR_AUTONEG_COMPLETE  0x0020	/* Auto Neg Complete */
+#define MII_SR_PREAMBLE_SUPPRESS 0x0040	/* Preamble may be suppressed */
+#define MII_SR_EXTENDED_STATUS   0x0100	/* Ext. status info in Reg 0x0F */
+#define MII_SR_100T2_HD_CAPS     0x0200	/* 100T2 Half Duplex Capable */
+#define MII_SR_100T2_FD_CAPS     0x0400	/* 100T2 Full Duplex Capable */
+#define MII_SR_10T_HD_CAPS       0x0800	/* 10T   Half Duplex Capable */
+#define MII_SR_10T_FD_CAPS       0x1000	/* 10T   Full Duplex Capable */
+#define MII_SR_100X_HD_CAPS      0x2000	/* 100X  Half Duplex Capable */
+#define MII_SR_100X_FD_CAPS      0x4000	/* 100X  Full Duplex Capable */
+#define MII_SR_100T4_CAPS        0x8000	/* 100T4 Capable */
+
+/* Phy Id Register (word 2) */
+#define PHY_REVISION_MASK        0x000F
+
+/* PHY Specific Control Register */
+#define PHYSP_CTRL_ASSERT_CRS_TX  0x0800
+
+
+/* Default value of PHY register */
+#define PHY_CONTROL_DEFAULT         0x1140 /* Control Register */
+#define PHY_AUTONEG_ADV_DEFAULT     0x01e0 /* Autoneg Advertisement */
+#define PHY_NEXT_PAGE_TX_DEFAULT    0x2001 /* Next Page TX */
+#define PHY_1000T_CTRL_DEFAULT      0x0300 /* 1000Base-T Control Register */
+#define PHY_PHYSP_CONTROL_DEFAULT   0x01EE /* PHY Specific Control Register */
+
+/**
+ * pch_gbe_phy_get_id - Retrieve the PHY ID and revision
+ * @hw:	       Pointer to the HW structure
+ * Returns
+ *	0:			Successful.
+ *	Negative value:		Failed.
+ */
+s32 pch_gbe_phy_get_id(struct pch_gbe_hw *hw)
+{
+	struct pch_gbe_phy_info *phy = &hw->phy;
+	s32 ret;
+	u16 phy_id1;
+	u16 phy_id2;
+
+	ret = pch_gbe_phy_read_reg_miic(hw, PHY_ID1, &phy_id1);
+	if (ret)
+		return ret;
+	ret = pch_gbe_phy_read_reg_miic(hw, PHY_ID2, &phy_id2);
+	if (ret)
+		return ret;
+	/*
+	 * PHY_ID1: [bit15-0:ID(21-6)]
+	 * PHY_ID2: [bit15-10:ID(5-0)][bit9-4:Model][bit3-0:revision]
+	 */
+	phy->id = (u32)phy_id1;
+	phy->id = ((phy->id << 6) | ((phy_id2 & 0xFC00) >> 10));
+	phy->revision = (u32) (phy_id2 & 0x000F);
+	pr_debug("phy->id : 0x%08x  phy->revision : 0x%08x\n",
+		 phy->id, phy->revision);
+	return 0;
+}
+
+/**
+ * pch_gbe_phy_read_reg_miic - Read MII control register
+ * @hw:	     Pointer to the HW structure
+ * @offset:  Register offset to be read
+ * @data:    Pointer to the read data
+ * Returns
+ *	0:		Successful.
+ *	-EINVAL:	Invalid argument.
+ */
+s32 pch_gbe_phy_read_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 *data)
+{
+	struct pch_gbe_phy_info *phy = &hw->phy;
+
+	if (offset > PHY_MAX_REG_ADDRESS) {
+		pr_err("PHY Address %d is out of range\n", offset);
+		return -EINVAL;
+	}
+	*data = pch_gbe_mac_ctrl_miim(hw, phy->addr, PCH_GBE_HAL_MIIM_READ,
+				      offset, (u16)0);
+	return 0;
+}
+
+/**
+ * pch_gbe_phy_write_reg_miic - Write MII control register
+ * @hw:	     Pointer to the HW structure
+ * @offset:  Register offset to be read
+ * @data:    data to write to register at offset
+ * Returns
+ *	0:		Successful.
+ *	-EINVAL:	Invalid argument.
+ */
+s32 pch_gbe_phy_write_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 data)
+{
+	struct pch_gbe_phy_info *phy = &hw->phy;
+
+	if (offset > PHY_MAX_REG_ADDRESS) {
+		pr_err("PHY Address %d is out of range\n", offset);
+		return -EINVAL;
+	}
+	pch_gbe_mac_ctrl_miim(hw, phy->addr, PCH_GBE_HAL_MIIM_WRITE,
+				 offset, data);
+	return 0;
+}
+
+/**
+ * pch_gbe_phy_sw_reset - PHY software reset
+ * @hw:	            Pointer to the HW structure
+ */
+void pch_gbe_phy_sw_reset(struct pch_gbe_hw *hw)
+{
+	u16 phy_ctrl;
+
+	pch_gbe_phy_read_reg_miic(hw, PHY_CONTROL, &phy_ctrl);
+	phy_ctrl |= MII_CR_RESET;
+	pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, phy_ctrl);
+	udelay(1);
+}
+
+/**
+ * pch_gbe_phy_hw_reset - PHY hardware reset
+ * @hw:	   Pointer to the HW structure
+ */
+void pch_gbe_phy_hw_reset(struct pch_gbe_hw *hw)
+{
+	pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, PHY_CONTROL_DEFAULT);
+	pch_gbe_phy_write_reg_miic(hw, PHY_AUTONEG_ADV,
+					PHY_AUTONEG_ADV_DEFAULT);
+	pch_gbe_phy_write_reg_miic(hw, PHY_NEXT_PAGE_TX,
+					PHY_NEXT_PAGE_TX_DEFAULT);
+	pch_gbe_phy_write_reg_miic(hw, PHY_1000T_CTRL, PHY_1000T_CTRL_DEFAULT);
+	pch_gbe_phy_write_reg_miic(hw, PHY_PHYSP_CONTROL,
+					PHY_PHYSP_CONTROL_DEFAULT);
+}
+
+/**
+ * pch_gbe_phy_power_up - restore link in case the phy was powered down
+ * @hw:	   Pointer to the HW structure
+ */
+void pch_gbe_phy_power_up(struct pch_gbe_hw *hw)
+{
+	u16 mii_reg;
+
+	mii_reg = 0;
+	/* Just clear the power down bit to wake the phy back up */
+	/* according to the manual, the phy will retain its
+	 * settings across a power-down/up cycle */
+	pch_gbe_phy_read_reg_miic(hw, PHY_CONTROL, &mii_reg);
+	mii_reg &= ~MII_CR_POWER_DOWN;
+	pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, mii_reg);
+}
+
+/**
+ * pch_gbe_phy_power_down - Power down PHY
+ * @hw:	   Pointer to the HW structure
+ */
+void pch_gbe_phy_power_down(struct pch_gbe_hw *hw)
+{
+	u16 mii_reg;
+
+	mii_reg = 0;
+	/* Power down the PHY so no link is implied when interface is down *
+	 * The PHY cannot be powered down if any of the following is TRUE *
+	 * (a) WoL is enabled
+	 * (b) AMT is active
+	 */
+	pch_gbe_phy_read_reg_miic(hw, PHY_CONTROL, &mii_reg);
+	mii_reg |= MII_CR_POWER_DOWN;
+	pch_gbe_phy_write_reg_miic(hw, PHY_CONTROL, mii_reg);
+	mdelay(1);
+}
+
+/**
+ * pch_gbe_phy_set_rgmii - RGMII interface setting
+ * @hw:	            Pointer to the HW structure
+ */
+inline void pch_gbe_phy_set_rgmii(struct pch_gbe_hw *hw)
+{
+	pch_gbe_phy_sw_reset(hw);
+}
+
+/**
+ * pch_gbe_phy_init_setting - PHY initial setting
+ * @hw:	            Pointer to the HW structure
+ */
+void pch_gbe_phy_init_setting(struct pch_gbe_hw *hw)
+{
+	struct pch_gbe_adapter *adapter;
+	struct ethtool_cmd     cmd;
+	int ret;
+	u16 mii_reg;
+
+	adapter = container_of(hw, struct pch_gbe_adapter, hw);
+	ret = mii_ethtool_gset(&adapter->mii, &cmd);
+	if (ret)
+		pr_err("Error: mii_ethtool_gset\n");
+
+	cmd.speed = hw->mac.link_speed;
+	cmd.duplex = hw->mac.link_duplex;
+	cmd.advertising = hw->phy.autoneg_advertised;
+	cmd.autoneg = hw->mac.autoneg;
+	pch_gbe_phy_write_reg_miic(hw, MII_BMCR, BMCR_RESET);
+	ret = mii_ethtool_sset(&adapter->mii, &cmd);
+	if (ret)
+		pr_err("Error: mii_ethtool_sset\n");
+
+	pch_gbe_phy_sw_reset(hw);
+
+	pch_gbe_phy_read_reg_miic(hw, PHY_PHYSP_CONTROL, &mii_reg);
+	mii_reg |= PHYSP_CTRL_ASSERT_CRS_TX;
+	pch_gbe_phy_write_reg_miic(hw, PHY_PHYSP_CONTROL, mii_reg);
+
+}

drivers/net/pch_gbe/pch_gbe_phy.h

+/*
+ * Copyright (C) 1999 - 2010 Intel Corporation.
+ * Copyright (C) 2010 OKI SEMICONDUCTOR Co., LTD.
+ *
+ * This code was derived from the Intel e1000e Linux driver.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ *
+ * This program 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, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307, USA.
+ */
+#ifndef _PCH_GBE_PHY_H_
+#define _PCH_GBE_PHY_H_
+
+#define PCH_GBE_PHY_REGS_LEN		32
+#define	PCH_GBE_PHY_RESET_DELAY_US	10
+#define PCH_GBE_MAC_IFOP_RGMII
+
+s32 pch_gbe_phy_get_id(struct pch_gbe_hw *hw);
+s32 pch_gbe_phy_read_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 *data);
+s32 pch_gbe_phy_write_reg_miic(struct pch_gbe_hw *hw, u32 offset, u16 data);
+void pch_gbe_phy_sw_reset(struct pch_gbe_hw *hw);
+void pch_gbe_phy_hw_reset(struct pch_gbe_hw *hw);
+void pch_gbe_phy_power_up(struct pch_gbe_hw *hw);
+void pch_gbe_phy_power_down(struct pch_gbe_hw *hw);
+void pch_gbe_phy_set_rgmii(struct pch_gbe_hw *hw);
+void pch_gbe_phy_init_setting(struct pch_gbe_hw *hw);
+
+#endif /* _PCH_GBE_PHY_H_ */