| /******************************************************************************* | 
 |  | 
 |   Intel PRO/1000 Linux driver | 
 |   Copyright(c) 1999 - 2008 Intel Corporation. | 
 |  | 
 |   This program is free software; you can redistribute it and/or modify it | 
 |   under the terms and conditions of the GNU General Public License, | 
 |   version 2, as published by the Free Software Foundation. | 
 |  | 
 |   This program is distributed in the hope 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., | 
 |   51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA. | 
 |  | 
 |   The full GNU General Public License is included in this distribution in | 
 |   the file called "COPYING". | 
 |  | 
 |   Contact Information: | 
 |   Linux NICS <linux.nics@intel.com> | 
 |   e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> | 
 |   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 | 
 |  | 
 | *******************************************************************************/ | 
 |  | 
 | /* | 
 |  * 80003ES2LAN Gigabit Ethernet Controller (Copper) | 
 |  * 80003ES2LAN Gigabit Ethernet Controller (Serdes) | 
 |  */ | 
 |  | 
 | #include <linux/netdevice.h> | 
 | #include <linux/ethtool.h> | 
 | #include <linux/delay.h> | 
 | #include <linux/pci.h> | 
 |  | 
 | #include "e1000.h" | 
 |  | 
 | #define E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL	 0x00 | 
 | #define E1000_KMRNCTRLSTA_OFFSET_INB_CTRL	 0x02 | 
 | #define E1000_KMRNCTRLSTA_OFFSET_HD_CTRL	 0x10 | 
 | #define E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE	 0x1F | 
 |  | 
 | #define E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS	 0x0008 | 
 | #define E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS	 0x0800 | 
 | #define E1000_KMRNCTRLSTA_INB_CTRL_DIS_PADDING	 0x0010 | 
 |  | 
 | #define E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT 0x0004 | 
 | #define E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT	 0x0000 | 
 | #define E1000_KMRNCTRLSTA_OPMODE_E_IDLE		 0x2000 | 
 |  | 
 | #define E1000_TCTL_EXT_GCEX_MASK 0x000FFC00 /* Gigabit Carry Extend Padding */ | 
 | #define DEFAULT_TCTL_EXT_GCEX_80003ES2LAN	 0x00010000 | 
 |  | 
 | #define DEFAULT_TIPG_IPGT_1000_80003ES2LAN	 0x8 | 
 | #define DEFAULT_TIPG_IPGT_10_100_80003ES2LAN	 0x9 | 
 |  | 
 | /* GG82563 PHY Specific Status Register (Page 0, Register 16 */ | 
 | #define GG82563_PSCR_POLARITY_REVERSAL_DISABLE	 0x0002 /* 1=Reversal Disab. */ | 
 | #define GG82563_PSCR_CROSSOVER_MODE_MASK	 0x0060 | 
 | #define GG82563_PSCR_CROSSOVER_MODE_MDI		 0x0000 /* 00=Manual MDI */ | 
 | #define GG82563_PSCR_CROSSOVER_MODE_MDIX	 0x0020 /* 01=Manual MDIX */ | 
 | #define GG82563_PSCR_CROSSOVER_MODE_AUTO	 0x0060 /* 11=Auto crossover */ | 
 |  | 
 | /* PHY Specific Control Register 2 (Page 0, Register 26) */ | 
 | #define GG82563_PSCR2_REVERSE_AUTO_NEG		 0x2000 | 
 | 						/* 1=Reverse Auto-Negotiation */ | 
 |  | 
 | /* MAC Specific Control Register (Page 2, Register 21) */ | 
 | /* Tx clock speed for Link Down and 1000BASE-T for the following speeds */ | 
 | #define GG82563_MSCR_TX_CLK_MASK		 0x0007 | 
 | #define GG82563_MSCR_TX_CLK_10MBPS_2_5		 0x0004 | 
 | #define GG82563_MSCR_TX_CLK_100MBPS_25		 0x0005 | 
 | #define GG82563_MSCR_TX_CLK_1000MBPS_25		 0x0007 | 
 |  | 
 | #define GG82563_MSCR_ASSERT_CRS_ON_TX		 0x0010 /* 1=Assert */ | 
 |  | 
 | /* DSP Distance Register (Page 5, Register 26) */ | 
 | #define GG82563_DSPD_CABLE_LENGTH		 0x0007 /* 0 = <50M | 
 | 							   1 = 50-80M | 
 | 							   2 = 80-110M | 
 | 							   3 = 110-140M | 
 | 							   4 = >140M */ | 
 |  | 
 | /* Kumeran Mode Control Register (Page 193, Register 16) */ | 
 | #define GG82563_KMCR_PASS_FALSE_CARRIER		 0x0800 | 
 |  | 
 | /* Max number of times Kumeran read/write should be validated */ | 
 | #define GG82563_MAX_KMRN_RETRY  0x5 | 
 |  | 
 | /* Power Management Control Register (Page 193, Register 20) */ | 
 | #define GG82563_PMCR_ENABLE_ELECTRICAL_IDLE	 0x0001 | 
 | 					   /* 1=Enable SERDES Electrical Idle */ | 
 |  | 
 | /* In-Band Control Register (Page 194, Register 18) */ | 
 | #define GG82563_ICR_DIS_PADDING			 0x0010 /* Disable Padding */ | 
 |  | 
 | /* | 
 |  * A table for the GG82563 cable length where the range is defined | 
 |  * with a lower bound at "index" and the upper bound at | 
 |  * "index + 5". | 
 |  */ | 
 | static const u16 e1000_gg82563_cable_length_table[] = | 
 | 	 { 0, 60, 115, 150, 150, 60, 115, 150, 180, 180, 0xFF }; | 
 |  | 
 | static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw); | 
 | static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask); | 
 | static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask); | 
 | static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw); | 
 | static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw); | 
 | static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw); | 
 | static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex); | 
 | static s32 e1000_cfg_on_link_up_80003es2lan(struct e1000_hw *hw); | 
 | static s32  e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset, | 
 |                                             u16 *data); | 
 | static s32  e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset, | 
 |                                              u16 data); | 
 |  | 
 | /** | 
 |  *  e1000_init_phy_params_80003es2lan - Init ESB2 PHY func ptrs. | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  This is a function pointer entry point called by the api module. | 
 |  **/ | 
 | static s32 e1000_init_phy_params_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	struct e1000_phy_info *phy = &hw->phy; | 
 | 	s32 ret_val; | 
 |  | 
 | 	if (hw->phy.media_type != e1000_media_type_copper) { | 
 | 		phy->type	= e1000_phy_none; | 
 | 		return 0; | 
 | 	} | 
 |  | 
 | 	phy->addr		= 1; | 
 | 	phy->autoneg_mask	= AUTONEG_ADVERTISE_SPEED_DEFAULT; | 
 | 	phy->reset_delay_us      = 100; | 
 | 	phy->type		= e1000_phy_gg82563; | 
 |  | 
 | 	/* This can only be done after all function pointers are setup. */ | 
 | 	ret_val = e1000e_get_phy_id(hw); | 
 |  | 
 | 	/* Verify phy id */ | 
 | 	if (phy->id != GG82563_E_PHY_ID) | 
 | 		return -E1000_ERR_PHY; | 
 |  | 
 | 	return ret_val; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_init_nvm_params_80003es2lan - Init ESB2 NVM func ptrs. | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  This is a function pointer entry point called by the api module. | 
 |  **/ | 
 | static s32 e1000_init_nvm_params_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	struct e1000_nvm_info *nvm = &hw->nvm; | 
 | 	u32 eecd = er32(EECD); | 
 | 	u16 size; | 
 |  | 
 | 	nvm->opcode_bits	= 8; | 
 | 	nvm->delay_usec	 = 1; | 
 | 	switch (nvm->override) { | 
 | 	case e1000_nvm_override_spi_large: | 
 | 		nvm->page_size    = 32; | 
 | 		nvm->address_bits = 16; | 
 | 		break; | 
 | 	case e1000_nvm_override_spi_small: | 
 | 		nvm->page_size    = 8; | 
 | 		nvm->address_bits = 8; | 
 | 		break; | 
 | 	default: | 
 | 		nvm->page_size    = eecd & E1000_EECD_ADDR_BITS ? 32 : 8; | 
 | 		nvm->address_bits = eecd & E1000_EECD_ADDR_BITS ? 16 : 8; | 
 | 		break; | 
 | 	} | 
 |  | 
 | 	nvm->type = e1000_nvm_eeprom_spi; | 
 |  | 
 | 	size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >> | 
 | 			  E1000_EECD_SIZE_EX_SHIFT); | 
 |  | 
 | 	/* | 
 | 	 * Added to a constant, "size" becomes the left-shift value | 
 | 	 * for setting word_size. | 
 | 	 */ | 
 | 	size += NVM_WORD_SIZE_BASE_SHIFT; | 
 |  | 
 | 	/* EEPROM access above 16k is unsupported */ | 
 | 	if (size > 14) | 
 | 		size = 14; | 
 | 	nvm->word_size	= 1 << size; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_init_mac_params_80003es2lan - Init ESB2 MAC func ptrs. | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  This is a function pointer entry point called by the api module. | 
 |  **/ | 
 | static s32 e1000_init_mac_params_80003es2lan(struct e1000_adapter *adapter) | 
 | { | 
 | 	struct e1000_hw *hw = &adapter->hw; | 
 | 	struct e1000_mac_info *mac = &hw->mac; | 
 | 	struct e1000_mac_operations *func = &mac->ops; | 
 |  | 
 | 	/* Set media type */ | 
 | 	switch (adapter->pdev->device) { | 
 | 	case E1000_DEV_ID_80003ES2LAN_SERDES_DPT: | 
 | 		hw->phy.media_type = e1000_media_type_internal_serdes; | 
 | 		break; | 
 | 	default: | 
 | 		hw->phy.media_type = e1000_media_type_copper; | 
 | 		break; | 
 | 	} | 
 |  | 
 | 	/* Set mta register count */ | 
 | 	mac->mta_reg_count = 128; | 
 | 	/* Set rar entry count */ | 
 | 	mac->rar_entry_count = E1000_RAR_ENTRIES; | 
 | 	/* Set if manageability features are enabled. */ | 
 | 	mac->arc_subsystem_valid = (er32(FWSM) & E1000_FWSM_MODE_MASK) ? 1 : 0; | 
 |  | 
 | 	/* check for link */ | 
 | 	switch (hw->phy.media_type) { | 
 | 	case e1000_media_type_copper: | 
 | 		func->setup_physical_interface = e1000_setup_copper_link_80003es2lan; | 
 | 		func->check_for_link = e1000e_check_for_copper_link; | 
 | 		break; | 
 | 	case e1000_media_type_fiber: | 
 | 		func->setup_physical_interface = e1000e_setup_fiber_serdes_link; | 
 | 		func->check_for_link = e1000e_check_for_fiber_link; | 
 | 		break; | 
 | 	case e1000_media_type_internal_serdes: | 
 | 		func->setup_physical_interface = e1000e_setup_fiber_serdes_link; | 
 | 		func->check_for_link = e1000e_check_for_serdes_link; | 
 | 		break; | 
 | 	default: | 
 | 		return -E1000_ERR_CONFIG; | 
 | 		break; | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | static s32 e1000_get_variants_80003es2lan(struct e1000_adapter *adapter) | 
 | { | 
 | 	struct e1000_hw *hw = &adapter->hw; | 
 | 	s32 rc; | 
 |  | 
 | 	rc = e1000_init_mac_params_80003es2lan(adapter); | 
 | 	if (rc) | 
 | 		return rc; | 
 |  | 
 | 	rc = e1000_init_nvm_params_80003es2lan(hw); | 
 | 	if (rc) | 
 | 		return rc; | 
 |  | 
 | 	rc = e1000_init_phy_params_80003es2lan(hw); | 
 | 	if (rc) | 
 | 		return rc; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_acquire_phy_80003es2lan - Acquire rights to access PHY | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  A wrapper to acquire access rights to the correct PHY.  This is a | 
 |  *  function pointer entry point called by the api module. | 
 |  **/ | 
 | static s32 e1000_acquire_phy_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	u16 mask; | 
 |  | 
 | 	mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM; | 
 | 	return e1000_acquire_swfw_sync_80003es2lan(hw, mask); | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_release_phy_80003es2lan - Release rights to access PHY | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  A wrapper to release access rights to the correct PHY.  This is a | 
 |  *  function pointer entry point called by the api module. | 
 |  **/ | 
 | static void e1000_release_phy_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	u16 mask; | 
 |  | 
 | 	mask = hw->bus.func ? E1000_SWFW_PHY1_SM : E1000_SWFW_PHY0_SM; | 
 | 	e1000_release_swfw_sync_80003es2lan(hw, mask); | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_acquire_mac_csr_80003es2lan - Acquire rights to access Kumeran register | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Acquire the semaphore to access the Kumeran interface. | 
 |  * | 
 |  **/ | 
 | static s32 e1000_acquire_mac_csr_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	u16 mask; | 
 |  | 
 | 	mask = E1000_SWFW_CSR_SM; | 
 |  | 
 | 	return e1000_acquire_swfw_sync_80003es2lan(hw, mask); | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_release_mac_csr_80003es2lan - Release rights to access Kumeran Register | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Release the semaphore used to access the Kumeran interface | 
 |  **/ | 
 | static void e1000_release_mac_csr_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	u16 mask; | 
 |  | 
 | 	mask = E1000_SWFW_CSR_SM; | 
 |  | 
 | 	e1000_release_swfw_sync_80003es2lan(hw, mask); | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_acquire_nvm_80003es2lan - Acquire rights to access NVM | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Acquire the semaphore to access the EEPROM.  This is a function | 
 |  *  pointer entry point called by the api module. | 
 |  **/ | 
 | static s32 e1000_acquire_nvm_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	s32 ret_val; | 
 |  | 
 | 	ret_val = e1000_acquire_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	ret_val = e1000e_acquire_nvm(hw); | 
 |  | 
 | 	if (ret_val) | 
 | 		e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM); | 
 |  | 
 | 	return ret_val; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_release_nvm_80003es2lan - Relinquish rights to access NVM | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Release the semaphore used to access the EEPROM.  This is a | 
 |  *  function pointer entry point called by the api module. | 
 |  **/ | 
 | static void e1000_release_nvm_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	e1000e_release_nvm(hw); | 
 | 	e1000_release_swfw_sync_80003es2lan(hw, E1000_SWFW_EEP_SM); | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_acquire_swfw_sync_80003es2lan - Acquire SW/FW semaphore | 
 |  *  @hw: pointer to the HW structure | 
 |  *  @mask: specifies which semaphore to acquire | 
 |  * | 
 |  *  Acquire the SW/FW semaphore to access the PHY or NVM.  The mask | 
 |  *  will also specify which port we're acquiring the lock for. | 
 |  **/ | 
 | static s32 e1000_acquire_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask) | 
 | { | 
 | 	u32 swfw_sync; | 
 | 	u32 swmask = mask; | 
 | 	u32 fwmask = mask << 16; | 
 | 	s32 i = 0; | 
 | 	s32 timeout = 50; | 
 |  | 
 | 	while (i < timeout) { | 
 | 		if (e1000e_get_hw_semaphore(hw)) | 
 | 			return -E1000_ERR_SWFW_SYNC; | 
 |  | 
 | 		swfw_sync = er32(SW_FW_SYNC); | 
 | 		if (!(swfw_sync & (fwmask | swmask))) | 
 | 			break; | 
 |  | 
 | 		/* | 
 | 		 * Firmware currently using resource (fwmask) | 
 | 		 * or other software thread using resource (swmask) | 
 | 		 */ | 
 | 		e1000e_put_hw_semaphore(hw); | 
 | 		mdelay(5); | 
 | 		i++; | 
 | 	} | 
 |  | 
 | 	if (i == timeout) { | 
 | 		hw_dbg(hw, | 
 | 		       "Driver can't access resource, SW_FW_SYNC timeout.\n"); | 
 | 		return -E1000_ERR_SWFW_SYNC; | 
 | 	} | 
 |  | 
 | 	swfw_sync |= swmask; | 
 | 	ew32(SW_FW_SYNC, swfw_sync); | 
 |  | 
 | 	e1000e_put_hw_semaphore(hw); | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_release_swfw_sync_80003es2lan - Release SW/FW semaphore | 
 |  *  @hw: pointer to the HW structure | 
 |  *  @mask: specifies which semaphore to acquire | 
 |  * | 
 |  *  Release the SW/FW semaphore used to access the PHY or NVM.  The mask | 
 |  *  will also specify which port we're releasing the lock for. | 
 |  **/ | 
 | static void e1000_release_swfw_sync_80003es2lan(struct e1000_hw *hw, u16 mask) | 
 | { | 
 | 	u32 swfw_sync; | 
 |  | 
 | 	while (e1000e_get_hw_semaphore(hw) != 0); | 
 | 	/* Empty */ | 
 |  | 
 | 	swfw_sync = er32(SW_FW_SYNC); | 
 | 	swfw_sync &= ~mask; | 
 | 	ew32(SW_FW_SYNC, swfw_sync); | 
 |  | 
 | 	e1000e_put_hw_semaphore(hw); | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_read_phy_reg_gg82563_80003es2lan - Read GG82563 PHY register | 
 |  *  @hw: pointer to the HW structure | 
 |  *  @offset: offset of the register to read | 
 |  *  @data: pointer to the data returned from the operation | 
 |  * | 
 |  *  Read the GG82563 PHY register.  This is a function pointer entry | 
 |  *  point called by the api module. | 
 |  **/ | 
 | static s32 e1000_read_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw, | 
 | 						  u32 offset, u16 *data) | 
 | { | 
 | 	s32 ret_val; | 
 | 	u32 page_select; | 
 | 	u16 temp; | 
 |  | 
 | 	ret_val = e1000_acquire_phy_80003es2lan(hw); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	/* Select Configuration Page */ | 
 | 	if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { | 
 | 		page_select = GG82563_PHY_PAGE_SELECT; | 
 | 	} else { | 
 | 		/* | 
 | 		 * Use Alternative Page Select register to access | 
 | 		 * registers 30 and 31 | 
 | 		 */ | 
 | 		page_select = GG82563_PHY_PAGE_SELECT_ALT; | 
 | 	} | 
 |  | 
 | 	temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT); | 
 | 	ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp); | 
 | 	if (ret_val) { | 
 | 		e1000_release_phy_80003es2lan(hw); | 
 | 		return ret_val; | 
 | 	} | 
 |  | 
 | 	/* | 
 | 	 * The "ready" bit in the MDIC register may be incorrectly set | 
 | 	 * before the device has completed the "Page Select" MDI | 
 | 	 * transaction.  So we wait 200us after each MDI command... | 
 | 	 */ | 
 | 	udelay(200); | 
 |  | 
 | 	/* ...and verify the command was successful. */ | 
 | 	ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp); | 
 |  | 
 | 	if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) { | 
 | 		ret_val = -E1000_ERR_PHY; | 
 | 		e1000_release_phy_80003es2lan(hw); | 
 | 		return ret_val; | 
 | 	} | 
 |  | 
 | 	udelay(200); | 
 |  | 
 | 	ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, | 
 | 					   data); | 
 |  | 
 | 	udelay(200); | 
 | 	e1000_release_phy_80003es2lan(hw); | 
 |  | 
 | 	return ret_val; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_write_phy_reg_gg82563_80003es2lan - Write GG82563 PHY register | 
 |  *  @hw: pointer to the HW structure | 
 |  *  @offset: offset of the register to read | 
 |  *  @data: value to write to the register | 
 |  * | 
 |  *  Write to the GG82563 PHY register.  This is a function pointer entry | 
 |  *  point called by the api module. | 
 |  **/ | 
 | static s32 e1000_write_phy_reg_gg82563_80003es2lan(struct e1000_hw *hw, | 
 | 						   u32 offset, u16 data) | 
 | { | 
 | 	s32 ret_val; | 
 | 	u32 page_select; | 
 | 	u16 temp; | 
 |  | 
 | 	ret_val = e1000_acquire_phy_80003es2lan(hw); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	/* Select Configuration Page */ | 
 | 	if ((offset & MAX_PHY_REG_ADDRESS) < GG82563_MIN_ALT_REG) { | 
 | 		page_select = GG82563_PHY_PAGE_SELECT; | 
 | 	} else { | 
 | 		/* | 
 | 		 * Use Alternative Page Select register to access | 
 | 		 * registers 30 and 31 | 
 | 		 */ | 
 | 		page_select = GG82563_PHY_PAGE_SELECT_ALT; | 
 | 	} | 
 |  | 
 | 	temp = (u16)((u16)offset >> GG82563_PAGE_SHIFT); | 
 | 	ret_val = e1000e_write_phy_reg_mdic(hw, page_select, temp); | 
 | 	if (ret_val) { | 
 | 		e1000_release_phy_80003es2lan(hw); | 
 | 		return ret_val; | 
 | 	} | 
 |  | 
 |  | 
 | 	/* | 
 | 	 * The "ready" bit in the MDIC register may be incorrectly set | 
 | 	 * before the device has completed the "Page Select" MDI | 
 | 	 * transaction.  So we wait 200us after each MDI command... | 
 | 	 */ | 
 | 	udelay(200); | 
 |  | 
 | 	/* ...and verify the command was successful. */ | 
 | 	ret_val = e1000e_read_phy_reg_mdic(hw, page_select, &temp); | 
 |  | 
 | 	if (((u16)offset >> GG82563_PAGE_SHIFT) != temp) { | 
 | 		e1000_release_phy_80003es2lan(hw); | 
 | 		return -E1000_ERR_PHY; | 
 | 	} | 
 |  | 
 | 	udelay(200); | 
 |  | 
 | 	ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, | 
 | 					    data); | 
 |  | 
 | 	udelay(200); | 
 | 	e1000_release_phy_80003es2lan(hw); | 
 |  | 
 | 	return ret_val; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_write_nvm_80003es2lan - Write to ESB2 NVM | 
 |  *  @hw: pointer to the HW structure | 
 |  *  @offset: offset of the register to read | 
 |  *  @words: number of words to write | 
 |  *  @data: buffer of data to write to the NVM | 
 |  * | 
 |  *  Write "words" of data to the ESB2 NVM.  This is a function | 
 |  *  pointer entry point called by the api module. | 
 |  **/ | 
 | static s32 e1000_write_nvm_80003es2lan(struct e1000_hw *hw, u16 offset, | 
 | 				       u16 words, u16 *data) | 
 | { | 
 | 	return e1000e_write_nvm_spi(hw, offset, words, data); | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_get_cfg_done_80003es2lan - Wait for configuration to complete | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Wait a specific amount of time for manageability processes to complete. | 
 |  *  This is a function pointer entry point called by the phy module. | 
 |  **/ | 
 | static s32 e1000_get_cfg_done_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	s32 timeout = PHY_CFG_TIMEOUT; | 
 | 	u32 mask = E1000_NVM_CFG_DONE_PORT_0; | 
 |  | 
 | 	if (hw->bus.func == 1) | 
 | 		mask = E1000_NVM_CFG_DONE_PORT_1; | 
 |  | 
 | 	while (timeout) { | 
 | 		if (er32(EEMNGCTL) & mask) | 
 | 			break; | 
 | 		msleep(1); | 
 | 		timeout--; | 
 | 	} | 
 | 	if (!timeout) { | 
 | 		hw_dbg(hw, "MNG configuration cycle has not completed.\n"); | 
 | 		return -E1000_ERR_RESET; | 
 | 	} | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_phy_force_speed_duplex_80003es2lan - Force PHY speed and duplex | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Force the speed and duplex settings onto the PHY.  This is a | 
 |  *  function pointer entry point called by the phy module. | 
 |  **/ | 
 | static s32 e1000_phy_force_speed_duplex_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	s32 ret_val; | 
 | 	u16 phy_data; | 
 | 	bool link; | 
 |  | 
 | 	/* | 
 | 	 * Clear Auto-Crossover to force MDI manually.  M88E1000 requires MDI | 
 | 	 * forced whenever speed and duplex are forced. | 
 | 	 */ | 
 | 	ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	phy_data &= ~GG82563_PSCR_CROSSOVER_MODE_AUTO; | 
 | 	ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, phy_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	hw_dbg(hw, "GG82563 PSCR: %X\n", phy_data); | 
 |  | 
 | 	ret_val = e1e_rphy(hw, PHY_CONTROL, &phy_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	e1000e_phy_force_speed_duplex_setup(hw, &phy_data); | 
 |  | 
 | 	/* Reset the phy to commit changes. */ | 
 | 	phy_data |= MII_CR_RESET; | 
 |  | 
 | 	ret_val = e1e_wphy(hw, PHY_CONTROL, phy_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	udelay(1); | 
 |  | 
 | 	if (hw->phy.autoneg_wait_to_complete) { | 
 | 		hw_dbg(hw, "Waiting for forced speed/duplex link " | 
 | 			 "on GG82563 phy.\n"); | 
 |  | 
 | 		ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT, | 
 | 						     100000, &link); | 
 | 		if (ret_val) | 
 | 			return ret_val; | 
 |  | 
 | 		if (!link) { | 
 | 			/* | 
 | 			 * We didn't get link. | 
 | 			 * Reset the DSP and cross our fingers. | 
 | 			 */ | 
 | 			ret_val = e1000e_phy_reset_dsp(hw); | 
 | 			if (ret_val) | 
 | 				return ret_val; | 
 | 		} | 
 |  | 
 | 		/* Try once more */ | 
 | 		ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT, | 
 | 						     100000, &link); | 
 | 		if (ret_val) | 
 | 			return ret_val; | 
 | 	} | 
 |  | 
 | 	ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &phy_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	/* | 
 | 	 * Resetting the phy means we need to verify the TX_CLK corresponds | 
 | 	 * to the link speed.  10Mbps -> 2.5MHz, else 25MHz. | 
 | 	 */ | 
 | 	phy_data &= ~GG82563_MSCR_TX_CLK_MASK; | 
 | 	if (hw->mac.forced_speed_duplex & E1000_ALL_10_SPEED) | 
 | 		phy_data |= GG82563_MSCR_TX_CLK_10MBPS_2_5; | 
 | 	else | 
 | 		phy_data |= GG82563_MSCR_TX_CLK_100MBPS_25; | 
 |  | 
 | 	/* | 
 | 	 * In addition, we must re-enable CRS on Tx for both half and full | 
 | 	 * duplex. | 
 | 	 */ | 
 | 	phy_data |= GG82563_MSCR_ASSERT_CRS_ON_TX; | 
 | 	ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, phy_data); | 
 |  | 
 | 	return ret_val; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_get_cable_length_80003es2lan - Set approximate cable length | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Find the approximate cable length as measured by the GG82563 PHY. | 
 |  *  This is a function pointer entry point called by the phy module. | 
 |  **/ | 
 | static s32 e1000_get_cable_length_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	struct e1000_phy_info *phy = &hw->phy; | 
 | 	s32 ret_val; | 
 | 	u16 phy_data; | 
 | 	u16 index; | 
 |  | 
 | 	ret_val = e1e_rphy(hw, GG82563_PHY_DSP_DISTANCE, &phy_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	index = phy_data & GG82563_DSPD_CABLE_LENGTH; | 
 | 	phy->min_cable_length = e1000_gg82563_cable_length_table[index]; | 
 | 	phy->max_cable_length = e1000_gg82563_cable_length_table[index+5]; | 
 |  | 
 | 	phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_get_link_up_info_80003es2lan - Report speed and duplex | 
 |  *  @hw: pointer to the HW structure | 
 |  *  @speed: pointer to speed buffer | 
 |  *  @duplex: pointer to duplex buffer | 
 |  * | 
 |  *  Retrieve the current speed and duplex configuration. | 
 |  *  This is a function pointer entry point called by the api module. | 
 |  **/ | 
 | static s32 e1000_get_link_up_info_80003es2lan(struct e1000_hw *hw, u16 *speed, | 
 | 					      u16 *duplex) | 
 | { | 
 | 	s32 ret_val; | 
 |  | 
 | 	if (hw->phy.media_type == e1000_media_type_copper) { | 
 | 		ret_val = e1000e_get_speed_and_duplex_copper(hw, | 
 | 								    speed, | 
 | 								    duplex); | 
 | 		hw->phy.ops.cfg_on_link_up(hw); | 
 | 	} else { | 
 | 		ret_val = e1000e_get_speed_and_duplex_fiber_serdes(hw, | 
 | 								  speed, | 
 | 								  duplex); | 
 | 	} | 
 |  | 
 | 	return ret_val; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_reset_hw_80003es2lan - Reset the ESB2 controller | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Perform a global reset to the ESB2 controller. | 
 |  *  This is a function pointer entry point called by the api module. | 
 |  **/ | 
 | static s32 e1000_reset_hw_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	u32 ctrl; | 
 | 	u32 icr; | 
 | 	s32 ret_val; | 
 |  | 
 | 	/* | 
 | 	 * Prevent the PCI-E bus from sticking if there is no TLP connection | 
 | 	 * on the last TLP read/write transaction when MAC is reset. | 
 | 	 */ | 
 | 	ret_val = e1000e_disable_pcie_master(hw); | 
 | 	if (ret_val) | 
 | 		hw_dbg(hw, "PCI-E Master disable polling has failed.\n"); | 
 |  | 
 | 	hw_dbg(hw, "Masking off all interrupts\n"); | 
 | 	ew32(IMC, 0xffffffff); | 
 |  | 
 | 	ew32(RCTL, 0); | 
 | 	ew32(TCTL, E1000_TCTL_PSP); | 
 | 	e1e_flush(); | 
 |  | 
 | 	msleep(10); | 
 |  | 
 | 	ctrl = er32(CTRL); | 
 |  | 
 | 	ret_val = e1000_acquire_phy_80003es2lan(hw); | 
 | 	hw_dbg(hw, "Issuing a global reset to MAC\n"); | 
 | 	ew32(CTRL, ctrl | E1000_CTRL_RST); | 
 | 	e1000_release_phy_80003es2lan(hw); | 
 |  | 
 | 	ret_val = e1000e_get_auto_rd_done(hw); | 
 | 	if (ret_val) | 
 | 		/* We don't want to continue accessing MAC registers. */ | 
 | 		return ret_val; | 
 |  | 
 | 	/* Clear any pending interrupt events. */ | 
 | 	ew32(IMC, 0xffffffff); | 
 | 	icr = er32(ICR); | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_init_hw_80003es2lan - Initialize the ESB2 controller | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Initialize the hw bits, LED, VFTA, MTA, link and hw counters. | 
 |  *  This is a function pointer entry point called by the api module. | 
 |  **/ | 
 | static s32 e1000_init_hw_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	struct e1000_mac_info *mac = &hw->mac; | 
 | 	u32 reg_data; | 
 | 	s32 ret_val; | 
 | 	u16 i; | 
 |  | 
 | 	e1000_initialize_hw_bits_80003es2lan(hw); | 
 |  | 
 | 	/* Initialize identification LED */ | 
 | 	ret_val = e1000e_id_led_init(hw); | 
 | 	if (ret_val) { | 
 | 		hw_dbg(hw, "Error initializing identification LED\n"); | 
 | 		return ret_val; | 
 | 	} | 
 |  | 
 | 	/* Disabling VLAN filtering */ | 
 | 	hw_dbg(hw, "Initializing the IEEE VLAN\n"); | 
 | 	e1000e_clear_vfta(hw); | 
 |  | 
 | 	/* Setup the receive address. */ | 
 | 	e1000e_init_rx_addrs(hw, mac->rar_entry_count); | 
 |  | 
 | 	/* Zero out the Multicast HASH table */ | 
 | 	hw_dbg(hw, "Zeroing the MTA\n"); | 
 | 	for (i = 0; i < mac->mta_reg_count; i++) | 
 | 		E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0); | 
 |  | 
 | 	/* Setup link and flow control */ | 
 | 	ret_val = e1000e_setup_link(hw); | 
 |  | 
 | 	/* Set the transmit descriptor write-back policy */ | 
 | 	reg_data = er32(TXDCTL(0)); | 
 | 	reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) | | 
 | 		   E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC; | 
 | 	ew32(TXDCTL(0), reg_data); | 
 |  | 
 | 	/* ...for both queues. */ | 
 | 	reg_data = er32(TXDCTL(1)); | 
 | 	reg_data = (reg_data & ~E1000_TXDCTL_WTHRESH) | | 
 | 		   E1000_TXDCTL_FULL_TX_DESC_WB | E1000_TXDCTL_COUNT_DESC; | 
 | 	ew32(TXDCTL(1), reg_data); | 
 |  | 
 | 	/* Enable retransmit on late collisions */ | 
 | 	reg_data = er32(TCTL); | 
 | 	reg_data |= E1000_TCTL_RTLC; | 
 | 	ew32(TCTL, reg_data); | 
 |  | 
 | 	/* Configure Gigabit Carry Extend Padding */ | 
 | 	reg_data = er32(TCTL_EXT); | 
 | 	reg_data &= ~E1000_TCTL_EXT_GCEX_MASK; | 
 | 	reg_data |= DEFAULT_TCTL_EXT_GCEX_80003ES2LAN; | 
 | 	ew32(TCTL_EXT, reg_data); | 
 |  | 
 | 	/* Configure Transmit Inter-Packet Gap */ | 
 | 	reg_data = er32(TIPG); | 
 | 	reg_data &= ~E1000_TIPG_IPGT_MASK; | 
 | 	reg_data |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN; | 
 | 	ew32(TIPG, reg_data); | 
 |  | 
 | 	reg_data = E1000_READ_REG_ARRAY(hw, E1000_FFLT, 0x0001); | 
 | 	reg_data &= ~0x00100000; | 
 | 	E1000_WRITE_REG_ARRAY(hw, E1000_FFLT, 0x0001, reg_data); | 
 |  | 
 | 	/* | 
 | 	 * Clear all of the statistics registers (clear on read).  It is | 
 | 	 * important that we do this after we have tried to establish link | 
 | 	 * because the symbol error count will increment wildly if there | 
 | 	 * is no link. | 
 | 	 */ | 
 | 	e1000_clear_hw_cntrs_80003es2lan(hw); | 
 |  | 
 | 	return ret_val; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_initialize_hw_bits_80003es2lan - Init hw bits of ESB2 | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Initializes required hardware-dependent bits needed for normal operation. | 
 |  **/ | 
 | static void e1000_initialize_hw_bits_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	u32 reg; | 
 |  | 
 | 	/* Transmit Descriptor Control 0 */ | 
 | 	reg = er32(TXDCTL(0)); | 
 | 	reg |= (1 << 22); | 
 | 	ew32(TXDCTL(0), reg); | 
 |  | 
 | 	/* Transmit Descriptor Control 1 */ | 
 | 	reg = er32(TXDCTL(1)); | 
 | 	reg |= (1 << 22); | 
 | 	ew32(TXDCTL(1), reg); | 
 |  | 
 | 	/* Transmit Arbitration Control 0 */ | 
 | 	reg = er32(TARC(0)); | 
 | 	reg &= ~(0xF << 27); /* 30:27 */ | 
 | 	if (hw->phy.media_type != e1000_media_type_copper) | 
 | 		reg &= ~(1 << 20); | 
 | 	ew32(TARC(0), reg); | 
 |  | 
 | 	/* Transmit Arbitration Control 1 */ | 
 | 	reg = er32(TARC(1)); | 
 | 	if (er32(TCTL) & E1000_TCTL_MULR) | 
 | 		reg &= ~(1 << 28); | 
 | 	else | 
 | 		reg |= (1 << 28); | 
 | 	ew32(TARC(1), reg); | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_copper_link_setup_gg82563_80003es2lan - Configure GG82563 Link | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Setup some GG82563 PHY registers for obtaining link | 
 |  **/ | 
 | static s32 e1000_copper_link_setup_gg82563_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	struct e1000_phy_info *phy = &hw->phy; | 
 | 	s32 ret_val; | 
 | 	u32 ctrl_ext; | 
 | 	u16 data; | 
 |  | 
 | 	ret_val = e1e_rphy(hw, GG82563_PHY_MAC_SPEC_CTRL, &data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	data |= GG82563_MSCR_ASSERT_CRS_ON_TX; | 
 | 	/* Use 25MHz for both link down and 1000Base-T for Tx clock. */ | 
 | 	data |= GG82563_MSCR_TX_CLK_1000MBPS_25; | 
 |  | 
 | 	ret_val = e1e_wphy(hw, GG82563_PHY_MAC_SPEC_CTRL, data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	/* | 
 | 	 * Options: | 
 | 	 *   MDI/MDI-X = 0 (default) | 
 | 	 *   0 - Auto for all speeds | 
 | 	 *   1 - MDI mode | 
 | 	 *   2 - MDI-X mode | 
 | 	 *   3 - Auto for 1000Base-T only (MDI-X for 10/100Base-T modes) | 
 | 	 */ | 
 | 	ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL, &data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	data &= ~GG82563_PSCR_CROSSOVER_MODE_MASK; | 
 |  | 
 | 	switch (phy->mdix) { | 
 | 	case 1: | 
 | 		data |= GG82563_PSCR_CROSSOVER_MODE_MDI; | 
 | 		break; | 
 | 	case 2: | 
 | 		data |= GG82563_PSCR_CROSSOVER_MODE_MDIX; | 
 | 		break; | 
 | 	case 0: | 
 | 	default: | 
 | 		data |= GG82563_PSCR_CROSSOVER_MODE_AUTO; | 
 | 		break; | 
 | 	} | 
 |  | 
 | 	/* | 
 | 	 * Options: | 
 | 	 *   disable_polarity_correction = 0 (default) | 
 | 	 *       Automatic Correction for Reversed Cable Polarity | 
 | 	 *   0 - Disabled | 
 | 	 *   1 - Enabled | 
 | 	 */ | 
 | 	data &= ~GG82563_PSCR_POLARITY_REVERSAL_DISABLE; | 
 | 	if (phy->disable_polarity_correction) | 
 | 		data |= GG82563_PSCR_POLARITY_REVERSAL_DISABLE; | 
 |  | 
 | 	ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL, data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	/* SW Reset the PHY so all changes take effect */ | 
 | 	ret_val = e1000e_commit_phy(hw); | 
 | 	if (ret_val) { | 
 | 		hw_dbg(hw, "Error Resetting the PHY\n"); | 
 | 		return ret_val; | 
 | 	} | 
 |  | 
 | 	/* Bypass Rx and Tx FIFO's */ | 
 | 	ret_val = e1000_write_kmrn_reg_80003es2lan(hw, | 
 | 					E1000_KMRNCTRLSTA_OFFSET_FIFO_CTRL, | 
 | 					E1000_KMRNCTRLSTA_FIFO_CTRL_RX_BYPASS | | 
 | 					E1000_KMRNCTRLSTA_FIFO_CTRL_TX_BYPASS); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	ret_val = e1000_read_kmrn_reg_80003es2lan(hw, | 
 | 				       E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE, | 
 | 				       &data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 | 	data |= E1000_KMRNCTRLSTA_OPMODE_E_IDLE; | 
 | 	ret_val = e1000_write_kmrn_reg_80003es2lan(hw, | 
 | 					E1000_KMRNCTRLSTA_OFFSET_MAC2PHY_OPMODE, | 
 | 					data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	ret_val = e1e_rphy(hw, GG82563_PHY_SPEC_CTRL_2, &data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	data &= ~GG82563_PSCR2_REVERSE_AUTO_NEG; | 
 | 	ret_val = e1e_wphy(hw, GG82563_PHY_SPEC_CTRL_2, data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	ctrl_ext = er32(CTRL_EXT); | 
 | 	ctrl_ext &= ~(E1000_CTRL_EXT_LINK_MODE_MASK); | 
 | 	ew32(CTRL_EXT, ctrl_ext); | 
 |  | 
 | 	ret_val = e1e_rphy(hw, GG82563_PHY_PWR_MGMT_CTRL, &data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	/* | 
 | 	 * Do not init these registers when the HW is in IAMT mode, since the | 
 | 	 * firmware will have already initialized them.  We only initialize | 
 | 	 * them if the HW is not in IAMT mode. | 
 | 	 */ | 
 | 	if (!e1000e_check_mng_mode(hw)) { | 
 | 		/* Enable Electrical Idle on the PHY */ | 
 | 		data |= GG82563_PMCR_ENABLE_ELECTRICAL_IDLE; | 
 | 		ret_val = e1e_wphy(hw, GG82563_PHY_PWR_MGMT_CTRL, data); | 
 | 		if (ret_val) | 
 | 			return ret_val; | 
 |  | 
 | 		ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, &data); | 
 | 		if (ret_val) | 
 | 			return ret_val; | 
 |  | 
 | 		data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; | 
 | 		ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, data); | 
 | 		if (ret_val) | 
 | 			return ret_val; | 
 | 	} | 
 |  | 
 | 	/* | 
 | 	 * Workaround: Disable padding in Kumeran interface in the MAC | 
 | 	 * and in the PHY to avoid CRC errors. | 
 | 	 */ | 
 | 	ret_val = e1e_rphy(hw, GG82563_PHY_INBAND_CTRL, &data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	data |= GG82563_ICR_DIS_PADDING; | 
 | 	ret_val = e1e_wphy(hw, GG82563_PHY_INBAND_CTRL, data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_setup_copper_link_80003es2lan - Setup Copper Link for ESB2 | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Essentially a wrapper for setting up all things "copper" related. | 
 |  *  This is a function pointer entry point called by the mac module. | 
 |  **/ | 
 | static s32 e1000_setup_copper_link_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	u32 ctrl; | 
 | 	s32 ret_val; | 
 | 	u16 reg_data; | 
 |  | 
 | 	ctrl = er32(CTRL); | 
 | 	ctrl |= E1000_CTRL_SLU; | 
 | 	ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX); | 
 | 	ew32(CTRL, ctrl); | 
 |  | 
 | 	/* | 
 | 	 * Set the mac to wait the maximum time between each | 
 | 	 * iteration and increase the max iterations when | 
 | 	 * polling the phy; this fixes erroneous timeouts at 10Mbps. | 
 | 	 */ | 
 | 	ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 4), | 
 | 	                                           0xFFFF); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 | 	ret_val = e1000_read_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9), | 
 | 	                                          ®_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 | 	reg_data |= 0x3F; | 
 | 	ret_val = e1000_write_kmrn_reg_80003es2lan(hw, GG82563_REG(0x34, 9), | 
 | 	                                           reg_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 | 	ret_val = e1000_read_kmrn_reg_80003es2lan(hw, | 
 | 				      E1000_KMRNCTRLSTA_OFFSET_INB_CTRL, | 
 | 				      ®_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 | 	reg_data |= E1000_KMRNCTRLSTA_INB_CTRL_DIS_PADDING; | 
 | 	ret_val = e1000_write_kmrn_reg_80003es2lan(hw, | 
 | 					E1000_KMRNCTRLSTA_OFFSET_INB_CTRL, | 
 | 					reg_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	ret_val = e1000_copper_link_setup_gg82563_80003es2lan(hw); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	ret_val = e1000e_setup_copper_link(hw); | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_cfg_on_link_up_80003es2lan - es2 link configuration after link-up | 
 |  *  @hw: pointer to the HW structure | 
 |  *  @duplex: current duplex setting | 
 |  * | 
 |  *  Configure the KMRN interface by applying last minute quirks for | 
 |  *  10/100 operation. | 
 |  **/ | 
 | static s32 e1000_cfg_on_link_up_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	s32 ret_val = 0; | 
 | 	u16 speed; | 
 | 	u16 duplex; | 
 |  | 
 | 	if (hw->phy.media_type == e1000_media_type_copper) { | 
 | 		ret_val = e1000e_get_speed_and_duplex_copper(hw, &speed, | 
 | 		                                             &duplex); | 
 | 		if (ret_val) | 
 | 			return ret_val; | 
 |  | 
 | 		if (speed == SPEED_1000) | 
 | 			ret_val = e1000_cfg_kmrn_1000_80003es2lan(hw); | 
 | 		else | 
 | 			ret_val = e1000_cfg_kmrn_10_100_80003es2lan(hw, duplex); | 
 | 	} | 
 |  | 
 | 	return ret_val; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_cfg_kmrn_10_100_80003es2lan - Apply "quirks" for 10/100 operation | 
 |  *  @hw: pointer to the HW structure | 
 |  *  @duplex: current duplex setting | 
 |  * | 
 |  *  Configure the KMRN interface by applying last minute quirks for | 
 |  *  10/100 operation. | 
 |  **/ | 
 | static s32 e1000_cfg_kmrn_10_100_80003es2lan(struct e1000_hw *hw, u16 duplex) | 
 | { | 
 | 	s32 ret_val; | 
 | 	u32 tipg; | 
 | 	u32 i = 0; | 
 | 	u16 reg_data, reg_data2; | 
 |  | 
 | 	reg_data = E1000_KMRNCTRLSTA_HD_CTRL_10_100_DEFAULT; | 
 | 	ret_val = e1000_write_kmrn_reg_80003es2lan(hw, | 
 | 	                               E1000_KMRNCTRLSTA_OFFSET_HD_CTRL, | 
 | 	                               reg_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	/* Configure Transmit Inter-Packet Gap */ | 
 | 	tipg = er32(TIPG); | 
 | 	tipg &= ~E1000_TIPG_IPGT_MASK; | 
 | 	tipg |= DEFAULT_TIPG_IPGT_10_100_80003ES2LAN; | 
 | 	ew32(TIPG, tipg); | 
 |  | 
 | 	do { | 
 | 		ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); | 
 | 		if (ret_val) | 
 | 			return ret_val; | 
 |  | 
 | 		ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data2); | 
 | 		if (ret_val) | 
 | 			return ret_val; | 
 | 		i++; | 
 | 	} while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY)); | 
 |  | 
 | 	if (duplex == HALF_DUPLEX) | 
 | 		reg_data |= GG82563_KMCR_PASS_FALSE_CARRIER; | 
 | 	else | 
 | 		reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; | 
 |  | 
 | 	ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); | 
 |  | 
 | 	return 0; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_cfg_kmrn_1000_80003es2lan - Apply "quirks" for gigabit operation | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Configure the KMRN interface by applying last minute quirks for | 
 |  *  gigabit operation. | 
 |  **/ | 
 | static s32 e1000_cfg_kmrn_1000_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	s32 ret_val; | 
 | 	u16 reg_data, reg_data2; | 
 | 	u32 tipg; | 
 | 	u32 i = 0; | 
 |  | 
 | 	reg_data = E1000_KMRNCTRLSTA_HD_CTRL_1000_DEFAULT; | 
 | 	ret_val = e1000_write_kmrn_reg_80003es2lan(hw, | 
 | 	                               E1000_KMRNCTRLSTA_OFFSET_HD_CTRL, | 
 | 	                               reg_data); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	/* Configure Transmit Inter-Packet Gap */ | 
 | 	tipg = er32(TIPG); | 
 | 	tipg &= ~E1000_TIPG_IPGT_MASK; | 
 | 	tipg |= DEFAULT_TIPG_IPGT_1000_80003ES2LAN; | 
 | 	ew32(TIPG, tipg); | 
 |  | 
 | 	do { | 
 | 		ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data); | 
 | 		if (ret_val) | 
 | 			return ret_val; | 
 |  | 
 | 		ret_val = e1e_rphy(hw, GG82563_PHY_KMRN_MODE_CTRL, ®_data2); | 
 | 		if (ret_val) | 
 | 			return ret_val; | 
 | 		i++; | 
 | 	} while ((reg_data != reg_data2) && (i < GG82563_MAX_KMRN_RETRY)); | 
 |  | 
 | 	reg_data &= ~GG82563_KMCR_PASS_FALSE_CARRIER; | 
 | 	ret_val = e1e_wphy(hw, GG82563_PHY_KMRN_MODE_CTRL, reg_data); | 
 |  | 
 | 	return ret_val; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_read_kmrn_reg_80003es2lan - Read kumeran register | 
 |  *  @hw: pointer to the HW structure | 
 |  *  @offset: register offset to be read | 
 |  *  @data: pointer to the read data | 
 |  * | 
 |  *  Acquire semaphore, then read the PHY register at offset | 
 |  *  using the kumeran interface.  The information retrieved is stored in data. | 
 |  *  Release the semaphore before exiting. | 
 |  **/ | 
 | static s32 e1000_read_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset, | 
 | 					   u16 *data) | 
 | { | 
 | 	u32 kmrnctrlsta; | 
 | 	s32 ret_val = 0; | 
 |  | 
 | 	ret_val = e1000_acquire_mac_csr_80003es2lan(hw); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) & | 
 | 	               E1000_KMRNCTRLSTA_OFFSET) | E1000_KMRNCTRLSTA_REN; | 
 | 	ew32(KMRNCTRLSTA, kmrnctrlsta); | 
 |  | 
 | 	udelay(2); | 
 |  | 
 | 	kmrnctrlsta = er32(KMRNCTRLSTA); | 
 | 	*data = (u16)kmrnctrlsta; | 
 |  | 
 | 	e1000_release_mac_csr_80003es2lan(hw); | 
 |  | 
 | 	return ret_val; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_write_kmrn_reg_80003es2lan - Write kumeran register | 
 |  *  @hw: pointer to the HW structure | 
 |  *  @offset: register offset to write to | 
 |  *  @data: data to write at register offset | 
 |  * | 
 |  *  Acquire semaphore, then write the data to PHY register | 
 |  *  at the offset using the kumeran interface.  Release semaphore | 
 |  *  before exiting. | 
 |  **/ | 
 | static s32 e1000_write_kmrn_reg_80003es2lan(struct e1000_hw *hw, u32 offset, | 
 | 					    u16 data) | 
 | { | 
 | 	u32 kmrnctrlsta; | 
 | 	s32 ret_val = 0; | 
 |  | 
 | 	ret_val = e1000_acquire_mac_csr_80003es2lan(hw); | 
 | 	if (ret_val) | 
 | 		return ret_val; | 
 |  | 
 | 	kmrnctrlsta = ((offset << E1000_KMRNCTRLSTA_OFFSET_SHIFT) & | 
 | 	               E1000_KMRNCTRLSTA_OFFSET) | data; | 
 | 	ew32(KMRNCTRLSTA, kmrnctrlsta); | 
 |  | 
 | 	udelay(2); | 
 |  | 
 | 	e1000_release_mac_csr_80003es2lan(hw); | 
 |  | 
 | 	return ret_val; | 
 | } | 
 |  | 
 | /** | 
 |  *  e1000_clear_hw_cntrs_80003es2lan - Clear device specific hardware counters | 
 |  *  @hw: pointer to the HW structure | 
 |  * | 
 |  *  Clears the hardware counters by reading the counter registers. | 
 |  **/ | 
 | static void e1000_clear_hw_cntrs_80003es2lan(struct e1000_hw *hw) | 
 | { | 
 | 	u32 temp; | 
 |  | 
 | 	e1000e_clear_hw_cntrs_base(hw); | 
 |  | 
 | 	temp = er32(PRC64); | 
 | 	temp = er32(PRC127); | 
 | 	temp = er32(PRC255); | 
 | 	temp = er32(PRC511); | 
 | 	temp = er32(PRC1023); | 
 | 	temp = er32(PRC1522); | 
 | 	temp = er32(PTC64); | 
 | 	temp = er32(PTC127); | 
 | 	temp = er32(PTC255); | 
 | 	temp = er32(PTC511); | 
 | 	temp = er32(PTC1023); | 
 | 	temp = er32(PTC1522); | 
 |  | 
 | 	temp = er32(ALGNERRC); | 
 | 	temp = er32(RXERRC); | 
 | 	temp = er32(TNCRS); | 
 | 	temp = er32(CEXTERR); | 
 | 	temp = er32(TSCTC); | 
 | 	temp = er32(TSCTFC); | 
 |  | 
 | 	temp = er32(MGTPRC); | 
 | 	temp = er32(MGTPDC); | 
 | 	temp = er32(MGTPTC); | 
 |  | 
 | 	temp = er32(IAC); | 
 | 	temp = er32(ICRXOC); | 
 |  | 
 | 	temp = er32(ICRXPTC); | 
 | 	temp = er32(ICRXATC); | 
 | 	temp = er32(ICTXPTC); | 
 | 	temp = er32(ICTXATC); | 
 | 	temp = er32(ICTXQEC); | 
 | 	temp = er32(ICTXQMTC); | 
 | 	temp = er32(ICRXDMTC); | 
 | } | 
 |  | 
 | static struct e1000_mac_operations es2_mac_ops = { | 
 | 	.id_led_init		= e1000e_id_led_init, | 
 | 	.check_mng_mode		= e1000e_check_mng_mode_generic, | 
 | 	/* check_for_link dependent on media type */ | 
 | 	.cleanup_led		= e1000e_cleanup_led_generic, | 
 | 	.clear_hw_cntrs		= e1000_clear_hw_cntrs_80003es2lan, | 
 | 	.get_bus_info		= e1000e_get_bus_info_pcie, | 
 | 	.get_link_up_info	= e1000_get_link_up_info_80003es2lan, | 
 | 	.led_on			= e1000e_led_on_generic, | 
 | 	.led_off		= e1000e_led_off_generic, | 
 | 	.update_mc_addr_list	= e1000e_update_mc_addr_list_generic, | 
 | 	.reset_hw		= e1000_reset_hw_80003es2lan, | 
 | 	.init_hw		= e1000_init_hw_80003es2lan, | 
 | 	.setup_link		= e1000e_setup_link, | 
 | 	/* setup_physical_interface dependent on media type */ | 
 | 	.setup_led		= e1000e_setup_led_generic, | 
 | }; | 
 |  | 
 | static struct e1000_phy_operations es2_phy_ops = { | 
 | 	.acquire_phy		= e1000_acquire_phy_80003es2lan, | 
 | 	.check_reset_block	= e1000e_check_reset_block_generic, | 
 | 	.commit_phy	 	= e1000e_phy_sw_reset, | 
 | 	.force_speed_duplex 	= e1000_phy_force_speed_duplex_80003es2lan, | 
 | 	.get_cfg_done       	= e1000_get_cfg_done_80003es2lan, | 
 | 	.get_cable_length   	= e1000_get_cable_length_80003es2lan, | 
 | 	.get_phy_info       	= e1000e_get_phy_info_m88, | 
 | 	.read_phy_reg       	= e1000_read_phy_reg_gg82563_80003es2lan, | 
 | 	.release_phy		= e1000_release_phy_80003es2lan, | 
 | 	.reset_phy	  	= e1000e_phy_hw_reset_generic, | 
 | 	.set_d0_lplu_state  	= NULL, | 
 | 	.set_d3_lplu_state  	= e1000e_set_d3_lplu_state, | 
 | 	.write_phy_reg      	= e1000_write_phy_reg_gg82563_80003es2lan, | 
 | 	.cfg_on_link_up      	= e1000_cfg_on_link_up_80003es2lan, | 
 | }; | 
 |  | 
 | static struct e1000_nvm_operations es2_nvm_ops = { | 
 | 	.acquire_nvm		= e1000_acquire_nvm_80003es2lan, | 
 | 	.read_nvm		= e1000e_read_nvm_eerd, | 
 | 	.release_nvm		= e1000_release_nvm_80003es2lan, | 
 | 	.update_nvm		= e1000e_update_nvm_checksum_generic, | 
 | 	.valid_led_default	= e1000e_valid_led_default, | 
 | 	.validate_nvm		= e1000e_validate_nvm_checksum_generic, | 
 | 	.write_nvm		= e1000_write_nvm_80003es2lan, | 
 | }; | 
 |  | 
 | struct e1000_info e1000_es2_info = { | 
 | 	.mac			= e1000_80003es2lan, | 
 | 	.flags			= FLAG_HAS_HW_VLAN_FILTER | 
 | 				  | FLAG_HAS_JUMBO_FRAMES | 
 | 				  | FLAG_HAS_WOL | 
 | 				  | FLAG_APME_IN_CTRL3 | 
 | 				  | FLAG_RX_CSUM_ENABLED | 
 | 				  | FLAG_HAS_CTRLEXT_ON_LOAD | 
 | 				  | FLAG_RX_NEEDS_RESTART /* errata */ | 
 | 				  | FLAG_TARC_SET_BIT_ZERO /* errata */ | 
 | 				  | FLAG_APME_CHECK_PORT_B | 
 | 				  | FLAG_DISABLE_FC_PAUSE_TIME /* errata */ | 
 | 				  | FLAG_TIPG_MEDIUM_FOR_80003ESLAN, | 
 | 	.pba			= 38, | 
 | 	.max_hw_frame_size	= DEFAULT_JUMBO, | 
 | 	.get_variants		= e1000_get_variants_80003es2lan, | 
 | 	.mac_ops		= &es2_mac_ops, | 
 | 	.phy_ops		= &es2_phy_ops, | 
 | 	.nvm_ops		= &es2_nvm_ops, | 
 | }; | 
 |  |