/*******************************************************************************
-Copyright (c) 2001-2012, Intel Corporation
+Copyright (c) 2001-2014, Intel Corporation
All rights reserved.
Redistribution and use in source and binary forms, with or without
* 82575GB Gigabit Network Connection
* 82576 Gigabit Network Connection
* 82576 Quad Port Gigabit Mezzanine Adapter
+ * 82580 Gigabit Network Connection
+ * I350 Gigabit Network Connection
*/
#include "e1000_api.h"
+#include "e1000_i210.h"
STATIC s32 e1000_init_phy_params_82575(struct e1000_hw *hw);
STATIC s32 e1000_init_mac_params_82575(struct e1000_hw *hw);
STATIC s32 e1000_acquire_nvm_82575(struct e1000_hw *hw);
STATIC void e1000_release_nvm_82575(struct e1000_hw *hw);
STATIC s32 e1000_check_for_link_82575(struct e1000_hw *hw);
+STATIC s32 e1000_check_for_link_media_swap(struct e1000_hw *hw);
STATIC s32 e1000_get_cfg_done_82575(struct e1000_hw *hw);
STATIC s32 e1000_get_link_up_info_82575(struct e1000_hw *hw, u16 *speed,
- u16 *duplex);
-STATIC s32 e1000_init_hw_82575(struct e1000_hw *hw);
+ u16 *duplex);
STATIC s32 e1000_phy_hw_reset_sgmii_82575(struct e1000_hw *hw);
STATIC s32 e1000_read_phy_reg_sgmii_82575(struct e1000_hw *hw, u32 offset,
- u16 *data);
+ u16 *data);
STATIC s32 e1000_reset_hw_82575(struct e1000_hw *hw);
STATIC s32 e1000_reset_hw_82580(struct e1000_hw *hw);
STATIC s32 e1000_read_phy_reg_82580(struct e1000_hw *hw,
- u32 offset, u16 *data);
+ u32 offset, u16 *data);
STATIC s32 e1000_write_phy_reg_82580(struct e1000_hw *hw,
- u32 offset, u16 data);
+ u32 offset, u16 data);
STATIC s32 e1000_set_d0_lplu_state_82580(struct e1000_hw *hw,
- bool active);
+ bool active);
STATIC s32 e1000_set_d3_lplu_state_82580(struct e1000_hw *hw,
- bool active);
+ bool active);
STATIC s32 e1000_set_d0_lplu_state_82575(struct e1000_hw *hw,
- bool active);
+ bool active);
STATIC s32 e1000_setup_copper_link_82575(struct e1000_hw *hw);
STATIC s32 e1000_setup_serdes_link_82575(struct e1000_hw *hw);
+STATIC s32 e1000_get_media_type_82575(struct e1000_hw *hw);
+STATIC s32 e1000_set_sfp_media_type_82575(struct e1000_hw *hw);
STATIC s32 e1000_valid_led_default_82575(struct e1000_hw *hw, u16 *data);
STATIC s32 e1000_write_phy_reg_sgmii_82575(struct e1000_hw *hw,
- u32 offset, u16 data);
+ u32 offset, u16 data);
STATIC void e1000_clear_hw_cntrs_82575(struct e1000_hw *hw);
STATIC s32 e1000_acquire_swfw_sync_82575(struct e1000_hw *hw, u16 mask);
-static s32 e1000_get_pcs_speed_and_duplex_82575(struct e1000_hw *hw,
- u16 *speed, u16 *duplex);
-static s32 e1000_get_phy_id_82575(struct e1000_hw *hw);
+STATIC s32 e1000_get_pcs_speed_and_duplex_82575(struct e1000_hw *hw,
+ u16 *speed, u16 *duplex);
+STATIC s32 e1000_get_phy_id_82575(struct e1000_hw *hw);
STATIC void e1000_release_swfw_sync_82575(struct e1000_hw *hw, u16 mask);
-static bool e1000_sgmii_active_82575(struct e1000_hw *hw);
+STATIC bool e1000_sgmii_active_82575(struct e1000_hw *hw);
STATIC s32 e1000_reset_init_script_82575(struct e1000_hw *hw);
STATIC s32 e1000_read_mac_addr_82575(struct e1000_hw *hw);
STATIC void e1000_config_collision_dist_82575(struct e1000_hw *hw);
STATIC s32 e1000_validate_nvm_checksum_82580(struct e1000_hw *hw);
STATIC s32 e1000_update_nvm_checksum_82580(struct e1000_hw *hw);
STATIC s32 e1000_update_nvm_checksum_with_offset(struct e1000_hw *hw,
- u16 offset);
+ u16 offset);
STATIC s32 e1000_validate_nvm_checksum_with_offset(struct e1000_hw *hw,
- u16 offset);
+ u16 offset);
STATIC s32 e1000_validate_nvm_checksum_i350(struct e1000_hw *hw);
STATIC s32 e1000_update_nvm_checksum_i350(struct e1000_hw *hw);
-
-static const u16 e1000_82580_rxpbs_table[] =
- { 36, 72, 144, 1, 2, 4, 8, 16,
- 35, 70, 140 };
+STATIC void e1000_write_vfta_i350(struct e1000_hw *hw, u32 offset, u32 value);
+STATIC void e1000_clear_vfta_i350(struct e1000_hw *hw);
+
+STATIC void e1000_i2c_start(struct e1000_hw *hw);
+STATIC void e1000_i2c_stop(struct e1000_hw *hw);
+STATIC s32 e1000_clock_in_i2c_byte(struct e1000_hw *hw, u8 *data);
+STATIC s32 e1000_clock_out_i2c_byte(struct e1000_hw *hw, u8 data);
+STATIC s32 e1000_get_i2c_ack(struct e1000_hw *hw);
+STATIC s32 e1000_clock_in_i2c_bit(struct e1000_hw *hw, bool *data);
+STATIC s32 e1000_clock_out_i2c_bit(struct e1000_hw *hw, bool data);
+STATIC void e1000_raise_i2c_clk(struct e1000_hw *hw, u32 *i2cctl);
+STATIC void e1000_lower_i2c_clk(struct e1000_hw *hw, u32 *i2cctl);
+STATIC s32 e1000_set_i2c_data(struct e1000_hw *hw, u32 *i2cctl, bool data);
+STATIC bool e1000_get_i2c_data(u32 *i2cctl);
+
+STATIC const u16 e1000_82580_rxpbs_table[] = {
+ 36, 72, 144, 1, 2, 4, 8, 16, 35, 70, 140 };
#define E1000_82580_RXPBS_TABLE_SIZE \
- (sizeof(e1000_82580_rxpbs_table)/sizeof(u16))
+ (sizeof(e1000_82580_rxpbs_table) / \
+ sizeof(e1000_82580_rxpbs_table[0]))
/**
break;
case e1000_82580:
case e1000_i350:
+ case e1000_i354:
+ case e1000_i210:
+ case e1000_i211:
reg = E1000_READ_REG(hw, E1000_MDICNFG);
ext_mdio = !!(reg & E1000_MDICNFG_EXT_MDIO);
break;
DEBUGFUNC("e1000_init_phy_params_82575");
+ phy->ops.read_i2c_byte = e1000_read_i2c_byte_generic;
+ phy->ops.write_i2c_byte = e1000_write_i2c_byte_generic;
+
if (hw->phy.media_type != e1000_media_type_copper) {
phy->type = e1000_phy_none;
goto out;
phy->ops.power_up = e1000_power_up_phy_copper;
phy->ops.power_down = e1000_power_down_phy_copper_82575;
- phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
- phy->reset_delay_us = 100;
+ phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
+ phy->reset_delay_us = 100;
- phy->ops.acquire = e1000_acquire_phy_82575;
- phy->ops.check_reset_block = e1000_check_reset_block_generic;
- phy->ops.commit = e1000_phy_sw_reset_generic;
- phy->ops.get_cfg_done = e1000_get_cfg_done_82575;
- phy->ops.release = e1000_release_phy_82575;
+ phy->ops.acquire = e1000_acquire_phy_82575;
+ phy->ops.check_reset_block = e1000_check_reset_block_generic;
+ phy->ops.commit = e1000_phy_sw_reset_generic;
+ phy->ops.get_cfg_done = e1000_get_cfg_done_82575;
+ phy->ops.release = e1000_release_phy_82575;
ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
if (e1000_sgmii_active_82575(hw)) {
- phy->ops.reset = e1000_phy_hw_reset_sgmii_82575;
+ phy->ops.reset = e1000_phy_hw_reset_sgmii_82575;
ctrl_ext |= E1000_CTRL_I2C_ENA;
} else {
- phy->ops.reset = e1000_phy_hw_reset_generic;
+ phy->ops.reset = e1000_phy_hw_reset_generic;
ctrl_ext &= ~E1000_CTRL_I2C_ENA;
}
e1000_reset_mdicnfg_82580(hw);
if (e1000_sgmii_active_82575(hw) && !e1000_sgmii_uses_mdio_82575(hw)) {
- phy->ops.read_reg = e1000_read_phy_reg_sgmii_82575;
- phy->ops.write_reg = e1000_write_phy_reg_sgmii_82575;
- } else if (hw->mac.type >= e1000_82580) {
- phy->ops.read_reg = e1000_read_phy_reg_82580;
- phy->ops.write_reg = e1000_write_phy_reg_82580;
+ phy->ops.read_reg = e1000_read_phy_reg_sgmii_82575;
+ phy->ops.write_reg = e1000_write_phy_reg_sgmii_82575;
} else {
- phy->ops.read_reg = e1000_read_phy_reg_igp;
- phy->ops.write_reg = e1000_write_phy_reg_igp;
+ switch (hw->mac.type) {
+ case e1000_82580:
+ case e1000_i350:
+ case e1000_i354:
+ phy->ops.read_reg = e1000_read_phy_reg_82580;
+ phy->ops.write_reg = e1000_write_phy_reg_82580;
+ break;
+ case e1000_i210:
+ case e1000_i211:
+ phy->ops.read_reg = e1000_read_phy_reg_gs40g;
+ phy->ops.write_reg = e1000_write_phy_reg_gs40g;
+ break;
+ default:
+ phy->ops.read_reg = e1000_read_phy_reg_igp;
+ phy->ops.write_reg = e1000_write_phy_reg_igp;
+ }
}
/* Set phy->phy_addr and phy->id. */
/* Verify phy id and set remaining function pointers */
switch (phy->id) {
+ case M88E1543_E_PHY_ID:
+ case M88E1512_E_PHY_ID:
case I347AT4_E_PHY_ID:
case M88E1112_E_PHY_ID:
case M88E1340M_E_PHY_ID:
case M88E1111_I_PHY_ID:
- phy->type = e1000_phy_m88;
- phy->ops.check_polarity = e1000_check_polarity_m88;
- phy->ops.get_info = e1000_get_phy_info_m88;
+ phy->type = e1000_phy_m88;
+ phy->ops.check_polarity = e1000_check_polarity_m88;
+ phy->ops.get_info = e1000_get_phy_info_m88;
if (phy->id == I347AT4_E_PHY_ID ||
phy->id == M88E1112_E_PHY_ID ||
phy->id == M88E1340M_E_PHY_ID)
phy->ops.get_cable_length =
e1000_get_cable_length_m88_gen2;
+ else if (phy->id == M88E1543_E_PHY_ID ||
+ phy->id == M88E1512_E_PHY_ID)
+ phy->ops.get_cable_length =
+ e1000_get_cable_length_m88_gen2;
else
phy->ops.get_cable_length = e1000_get_cable_length_m88;
phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_m88;
+ /* Check if this PHY is confgured for media swap. */
+ if (phy->id == M88E1112_E_PHY_ID) {
+ u16 data;
+
+ ret_val = phy->ops.write_reg(hw,
+ E1000_M88E1112_PAGE_ADDR,
+ 2);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.read_reg(hw,
+ E1000_M88E1112_MAC_CTRL_1,
+ &data);
+ if (ret_val)
+ goto out;
+
+ data = (data & E1000_M88E1112_MAC_CTRL_1_MODE_MASK) >>
+ E1000_M88E1112_MAC_CTRL_1_MODE_SHIFT;
+ if (data == E1000_M88E1112_AUTO_COPPER_SGMII ||
+ data == E1000_M88E1112_AUTO_COPPER_BASEX)
+ hw->mac.ops.check_for_link =
+ e1000_check_for_link_media_swap;
+ }
+ if (phy->id == M88E1512_E_PHY_ID) {
+ ret_val = e1000_initialize_M88E1512_phy(hw);
+ if (ret_val)
+ goto out;
+ }
break;
case IGP03E1000_E_PHY_ID:
case IGP04E1000_E_PHY_ID:
- phy->type = e1000_phy_igp_3;
- phy->ops.check_polarity = e1000_check_polarity_igp;
- phy->ops.get_info = e1000_get_phy_info_igp;
- phy->ops.get_cable_length = e1000_get_cable_length_igp_2;
+ phy->type = e1000_phy_igp_3;
+ phy->ops.check_polarity = e1000_check_polarity_igp;
+ phy->ops.get_info = e1000_get_phy_info_igp;
+ phy->ops.get_cable_length = e1000_get_cable_length_igp_2;
phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_igp;
- phy->ops.set_d0_lplu_state = e1000_set_d0_lplu_state_82575;
- phy->ops.set_d3_lplu_state = e1000_set_d3_lplu_state_generic;
+ phy->ops.set_d0_lplu_state = e1000_set_d0_lplu_state_82575;
+ phy->ops.set_d3_lplu_state = e1000_set_d3_lplu_state_generic;
break;
case I82580_I_PHY_ID:
case I350_I_PHY_ID:
- phy->type = e1000_phy_82580;
- phy->ops.check_polarity = e1000_check_polarity_82577;
+ phy->type = e1000_phy_82580;
+ phy->ops.check_polarity = e1000_check_polarity_82577;
phy->ops.force_speed_duplex =
e1000_phy_force_speed_duplex_82577;
- phy->ops.get_cable_length = e1000_get_cable_length_82577;
- phy->ops.get_info = e1000_get_phy_info_82577;
- phy->ops.set_d0_lplu_state = e1000_set_d0_lplu_state_82580;
- phy->ops.set_d3_lplu_state = e1000_set_d3_lplu_state_82580;
+ phy->ops.get_cable_length = e1000_get_cable_length_82577;
+ phy->ops.get_info = e1000_get_phy_info_82577;
+ phy->ops.set_d0_lplu_state = e1000_set_d0_lplu_state_82580;
+ phy->ops.set_d3_lplu_state = e1000_set_d3_lplu_state_82580;
+ break;
+ case I210_I_PHY_ID:
+ phy->type = e1000_phy_i210;
+ phy->ops.check_polarity = e1000_check_polarity_m88;
+ phy->ops.get_info = e1000_get_phy_info_m88;
+ phy->ops.get_cable_length = e1000_get_cable_length_m88_gen2;
+ phy->ops.set_d0_lplu_state = e1000_set_d0_lplu_state_82580;
+ phy->ops.set_d3_lplu_state = e1000_set_d3_lplu_state_82580;
+ phy->ops.force_speed_duplex = e1000_phy_force_speed_duplex_m88;
break;
default:
ret_val = -E1000_ERR_PHY;
DEBUGFUNC("e1000_init_nvm_params_82575");
size = (u16)((eecd & E1000_EECD_SIZE_EX_MASK) >>
- E1000_EECD_SIZE_EX_SHIFT);
+ 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;
+ /* Just in case size is out of range, cap it to the largest
+ * EEPROM size supported
+ */
+ if (size > 15)
+ size = 15;
+
nvm->word_size = 1 << 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;
+ if (hw->mac.type < e1000_i210) {
+ 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;
+ break;
+ }
+ if (nvm->word_size == (1 << 15))
+ nvm->page_size = 128;
- if (nvm->word_size == (1 << 15))
- nvm->page_size = 128;
+ nvm->type = e1000_nvm_eeprom_spi;
+ } else {
+ nvm->type = e1000_nvm_flash_hw;
+ }
/* Function Pointers */
- nvm->ops.acquire = e1000_acquire_nvm_82575;
- nvm->ops.release = e1000_release_nvm_82575;
+ nvm->ops.acquire = e1000_acquire_nvm_82575;
+ nvm->ops.release = e1000_release_nvm_82575;
if (nvm->word_size < (1 << 15))
- nvm->ops.read = e1000_read_nvm_eerd;
+ nvm->ops.read = e1000_read_nvm_eerd;
else
- nvm->ops.read = e1000_read_nvm_spi;
+ nvm->ops.read = e1000_read_nvm_spi;
- nvm->ops.write = e1000_write_nvm_spi;
- nvm->ops.validate = e1000_validate_nvm_checksum_generic;
- nvm->ops.update = e1000_update_nvm_checksum_generic;
- nvm->ops.valid_led_default = e1000_valid_led_default_82575;
+ nvm->ops.write = e1000_write_nvm_spi;
+ nvm->ops.validate = e1000_validate_nvm_checksum_generic;
+ nvm->ops.update = e1000_update_nvm_checksum_generic;
+ nvm->ops.valid_led_default = e1000_valid_led_default_82575;
/* override generic family function pointers for specific descendants */
switch (hw->mac.type) {
nvm->ops.update = e1000_update_nvm_checksum_82580;
break;
case e1000_i350:
+ case e1000_i354:
nvm->ops.validate = e1000_validate_nvm_checksum_i350;
nvm->ops.update = e1000_update_nvm_checksum_i350;
break;
{
struct e1000_mac_info *mac = &hw->mac;
struct e1000_dev_spec_82575 *dev_spec = &hw->dev_spec._82575;
- u32 ctrl_ext = 0;
DEBUGFUNC("e1000_init_mac_params_82575");
- /* Set media type */
- /*
- * The 82575 uses bits 22:23 for link mode. The mode can be changed
- * based on the EEPROM. We cannot rely upon device ID. There
- * is no distinguishable difference between fiber and internal
- * SerDes mode on the 82575. There can be an external PHY attached
- * on the SGMII interface. For this, we'll set sgmii_active to TRUE.
- */
- hw->phy.media_type = e1000_media_type_copper;
- dev_spec->sgmii_active = FALSE;
-
- ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
- switch (ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK) {
- case E1000_CTRL_EXT_LINK_MODE_SGMII:
- dev_spec->sgmii_active = TRUE;
- break;
- case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX:
- case E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES:
- hw->phy.media_type = e1000_media_type_internal_serdes;
- break;
- default:
- break;
- }
-
+ /* Derives media type */
+ e1000_get_media_type_82575(hw);
/* Set mta register count */
mac->mta_reg_count = 128;
/* Set uta register count */
mac->rar_entry_count = E1000_RAR_ENTRIES_82576;
if (mac->type == e1000_82580)
mac->rar_entry_count = E1000_RAR_ENTRIES_82580;
- if (mac->type == e1000_i350) {
+ if (mac->type == e1000_i350 || mac->type == e1000_i354)
mac->rar_entry_count = E1000_RAR_ENTRIES_I350;
- /* Enable EEE default settings for i350 */
+
+ /* Enable EEE default settings for EEE supported devices */
+ if (mac->type >= e1000_i350)
dev_spec->eee_disable = false;
- }
+
+ /* Allow a single clear of the SW semaphore on I210 and newer */
+ if (mac->type >= e1000_i210)
+ dev_spec->clear_semaphore_once = true;
/* Set if part includes ASF firmware */
mac->asf_firmware_present = true;
else
mac->ops.reset_hw = e1000_reset_hw_82575;
/* hw initialization */
+ if ((mac->type == e1000_i210) || (mac->type == e1000_i211))
+ mac->ops.init_hw = e1000_init_hw_i210;
+ else
mac->ops.init_hw = e1000_init_hw_82575;
/* link setup */
mac->ops.setup_link = e1000_setup_link_generic;
/* physical interface link setup */
mac->ops.setup_physical_interface =
- (hw->phy.media_type == e1000_media_type_copper)
+ (hw->phy.media_type == e1000_media_type_copper)
? e1000_setup_copper_link_82575 : e1000_setup_serdes_link_82575;
/* physical interface shutdown */
mac->ops.shutdown_serdes = e1000_shutdown_serdes_link_82575;
mac->ops.power_up_serdes = e1000_power_up_serdes_link_82575;
/* check for link */
mac->ops.check_for_link = e1000_check_for_link_82575;
- /* receive address register setting */
- mac->ops.rar_set = e1000_rar_set_generic;
/* read mac address */
mac->ops.read_mac_addr = e1000_read_mac_addr_82575;
/* configure collision distance */
mac->ops.config_collision_dist = e1000_config_collision_dist_82575;
/* multicast address update */
mac->ops.update_mc_addr_list = e1000_update_mc_addr_list_generic;
- /* writing VFTA */
- mac->ops.write_vfta = e1000_write_vfta_generic;
- /* clearing VFTA */
- mac->ops.clear_vfta = e1000_clear_vfta_generic;
+ if (hw->mac.type == e1000_i350 || mac->type == e1000_i354) {
+ /* writing VFTA */
+ mac->ops.write_vfta = e1000_write_vfta_i350;
+ /* clearing VFTA */
+ mac->ops.clear_vfta = e1000_clear_vfta_i350;
+ } else {
+ /* writing VFTA */
+ mac->ops.write_vfta = e1000_write_vfta_generic;
+ /* clearing VFTA */
+ mac->ops.clear_vfta = e1000_clear_vfta_generic;
+ }
+ if (hw->mac.type >= e1000_82580)
+ mac->ops.validate_mdi_setting =
+ e1000_validate_mdi_setting_crossover_generic;
/* ID LED init */
mac->ops.id_led_init = e1000_id_led_init_generic;
/* blink LED */
mac->ops.clear_hw_cntrs = e1000_clear_hw_cntrs_82575;
/* link info */
mac->ops.get_link_up_info = e1000_get_link_up_info_82575;
+ /* acquire SW_FW sync */
+ mac->ops.acquire_swfw_sync = e1000_acquire_swfw_sync_82575;
+ mac->ops.release_swfw_sync = e1000_release_swfw_sync_82575;
+ if (mac->type >= e1000_i210) {
+ mac->ops.acquire_swfw_sync = e1000_acquire_swfw_sync_i210;
+ mac->ops.release_swfw_sync = e1000_release_swfw_sync_i210;
+ }
/* set lan id for port to determine which phy lock to use */
hw->mac.ops.set_lan_id(hw);
else if (hw->bus.func == E1000_FUNC_3)
mask = E1000_SWFW_PHY3_SM;
- return e1000_acquire_swfw_sync_82575(hw, mask);
+ return hw->mac.ops.acquire_swfw_sync(hw, mask);
}
/**
else if (hw->bus.func == E1000_FUNC_3)
mask = E1000_SWFW_PHY3_SM;
- e1000_release_swfw_sync_82575(hw, mask);
+ hw->mac.ops.release_swfw_sync(hw, mask);
}
/**
* interface and stores the retrieved information in data.
**/
STATIC s32 e1000_read_phy_reg_sgmii_82575(struct e1000_hw *hw, u32 offset,
- u16 *data)
+ u16 *data)
{
s32 ret_val = -E1000_ERR_PARAM;
* media independent interface.
**/
STATIC s32 e1000_write_phy_reg_sgmii_82575(struct e1000_hw *hw, u32 offset,
- u16 data)
+ u16 data)
{
s32 ret_val = -E1000_ERR_PARAM;
DEBUGFUNC("e1000_get_phy_id_82575");
+ /* some i354 devices need an extra read for phy id */
+ if (hw->mac.type == e1000_i354)
+ e1000_get_phy_id(hw);
+
/*
* For SGMII PHYs, we try the list of possible addresses until
* we find one that works. For non-SGMII PHYs
break;
case e1000_82580:
case e1000_i350:
+ case e1000_i354:
+ case e1000_i210:
+ case e1000_i211:
mdic = E1000_READ_REG(hw, E1000_MDICNFG);
mdic &= E1000_MDICNFG_PHY_MASK;
phy->addr = mdic >> E1000_MDICNFG_PHY_SHIFT;
/* Power on sgmii phy if it is disabled */
ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
E1000_WRITE_REG(hw, E1000_CTRL_EXT,
- ctrl_ext & ~E1000_CTRL_EXT_SDP3_DATA);
+ ctrl_ext & ~E1000_CTRL_EXT_SDP3_DATA);
E1000_WRITE_FLUSH(hw);
msec_delay(300);
break;
} else {
DEBUGOUT1("PHY address %u was unreadable\n",
- phy->addr);
+ phy->addr);
}
}
STATIC s32 e1000_phy_hw_reset_sgmii_82575(struct e1000_hw *hw)
{
s32 ret_val = E1000_SUCCESS;
+ struct e1000_phy_info *phy = &hw->phy;
DEBUGFUNC("e1000_phy_hw_reset_sgmii_82575");
goto out;
ret_val = hw->phy.ops.commit(hw);
+ if (ret_val)
+ goto out;
+ if (phy->id == M88E1512_E_PHY_ID)
+ ret_val = e1000_initialize_M88E1512_phy(hw);
out:
return ret_val;
}
if (active) {
data |= IGP02E1000_PM_D0_LPLU;
ret_val = phy->ops.write_reg(hw, IGP02E1000_PHY_POWER_MGMT,
- data);
+ data);
if (ret_val)
goto out;
/* When LPLU is enabled, we should disable SmartSpeed */
ret_val = phy->ops.read_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
- &data);
+ &data);
data &= ~IGP01E1000_PSCFR_SMART_SPEED;
ret_val = phy->ops.write_reg(hw, IGP01E1000_PHY_PORT_CONFIG,
- data);
+ data);
if (ret_val)
goto out;
} else {
data &= ~IGP02E1000_PM_D0_LPLU;
ret_val = phy->ops.write_reg(hw, IGP02E1000_PHY_POWER_MGMT,
- data);
+ data);
/*
* LPLU and SmartSpeed are mutually exclusive. LPLU is used
* during Dx states where the power conservation is most
*/
if (phy->smart_speed == e1000_smart_speed_on) {
ret_val = phy->ops.read_reg(hw,
- IGP01E1000_PHY_PORT_CONFIG,
- &data);
+ IGP01E1000_PHY_PORT_CONFIG,
+ &data);
if (ret_val)
goto out;
data |= IGP01E1000_PSCFR_SMART_SPEED;
ret_val = phy->ops.write_reg(hw,
- IGP01E1000_PHY_PORT_CONFIG,
- data);
+ IGP01E1000_PHY_PORT_CONFIG,
+ data);
if (ret_val)
goto out;
} else if (phy->smart_speed == e1000_smart_speed_off) {
ret_val = phy->ops.read_reg(hw,
- IGP01E1000_PHY_PORT_CONFIG,
- &data);
+ IGP01E1000_PHY_PORT_CONFIG,
+ &data);
if (ret_val)
goto out;
data &= ~IGP01E1000_PSCFR_SMART_SPEED;
ret_val = phy->ops.write_reg(hw,
- IGP01E1000_PHY_PORT_CONFIG,
- data);
+ IGP01E1000_PHY_PORT_CONFIG,
+ data);
if (ret_val)
goto out;
}
{
struct e1000_phy_info *phy = &hw->phy;
s32 ret_val = E1000_SUCCESS;
- u16 data;
+ u32 data;
DEBUGFUNC("e1000_set_d0_lplu_state_82580");
data |= E1000_82580_PM_SPD;
else if (phy->smart_speed == e1000_smart_speed_off)
data &= ~E1000_82580_PM_SPD;
- }
+ }
E1000_WRITE_REG(hw, E1000_82580_PHY_POWER_MGMT, data);
return ret_val;
{
struct e1000_phy_info *phy = &hw->phy;
s32 ret_val = E1000_SUCCESS;
- u16 data;
+ u32 data;
DEBUGFUNC("e1000_set_d3_lplu_state_82580");
else if (phy->smart_speed == e1000_smart_speed_off)
data &= ~E1000_82580_PM_SPD;
} else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) ||
- (phy->autoneg_advertised == E1000_ALL_NOT_GIG) ||
- (phy->autoneg_advertised == E1000_ALL_10_SPEED)) {
+ (phy->autoneg_advertised == E1000_ALL_NOT_GIG) ||
+ (phy->autoneg_advertised == E1000_ALL_10_SPEED)) {
data |= E1000_82580_PM_D3_LPLU;
/* When LPLU is enabled, we should disable SmartSpeed */
data &= ~E1000_82580_PM_SPD;
{
DEBUGFUNC("e1000_release_nvm_82575");
+ e1000_release_nvm_generic(hw);
+
e1000_release_swfw_sync_82575(hw, E1000_SWFW_EEP_SM);
}
* Otherwise, use the generic function to get the link speed and duplex info.
**/
STATIC s32 e1000_get_link_up_info_82575(struct e1000_hw *hw, u16 *speed,
- u16 *duplex)
+ u16 *duplex)
{
s32 ret_val;
if (hw->phy.media_type != e1000_media_type_copper)
ret_val = e1000_get_pcs_speed_and_duplex_82575(hw, speed,
- duplex);
+ duplex);
else
ret_val = e1000_get_speed_and_duplex_copper_generic(hw, speed,
- duplex);
+ duplex);
return ret_val;
}
if (hw->phy.media_type != e1000_media_type_copper) {
ret_val = e1000_get_pcs_speed_and_duplex_82575(hw, &speed,
- &duplex);
+ &duplex);
/*
* Use this flag to determine if link needs to be checked or
* not. If we have link clear the flag so that we do not
* continue to check for link.
*/
hw->mac.get_link_status = !hw->mac.serdes_has_link;
+
+ /*
+ * Configure Flow Control now that Auto-Neg has completed.
+ * First, we need to restore the desired flow control
+ * settings because we may have had to re-autoneg with a
+ * different link partner.
+ */
+ ret_val = e1000_config_fc_after_link_up_generic(hw);
+ if (ret_val)
+ DEBUGOUT("Error configuring flow control\n");
} else {
ret_val = e1000_check_for_copper_link_generic(hw);
}
return ret_val;
}
+/**
+ * e1000_check_for_link_media_swap - Check which M88E1112 interface linked
+ * @hw: pointer to the HW structure
+ *
+ * Poll the M88E1112 interfaces to see which interface achieved link.
+ */
+STATIC s32 e1000_check_for_link_media_swap(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val;
+ u16 data;
+ u8 port = 0;
+
+ DEBUGFUNC("e1000_check_for_link_media_swap");
+
+ /* Check the copper medium. */
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1112_PAGE_ADDR, 0);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = phy->ops.read_reg(hw, E1000_M88E1112_STATUS, &data);
+ if (ret_val)
+ return ret_val;
+
+ if (data & E1000_M88E1112_STATUS_LINK)
+ port = E1000_MEDIA_PORT_COPPER;
+
+ /* Check the other medium. */
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1112_PAGE_ADDR, 1);
+ if (ret_val)
+ return ret_val;
+
+ ret_val = phy->ops.read_reg(hw, E1000_M88E1112_STATUS, &data);
+ if (ret_val)
+ return ret_val;
+
+ /* reset page to 0 */
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1112_PAGE_ADDR, 0);
+ if (ret_val)
+ return ret_val;
+
+ if (data & E1000_M88E1112_STATUS_LINK)
+ port = E1000_MEDIA_PORT_OTHER;
+
+ /* Determine if a swap needs to happen. */
+ if (port && (hw->dev_spec._82575.media_port != port)) {
+ hw->dev_spec._82575.media_port = port;
+ hw->dev_spec._82575.media_changed = true;
+ } else {
+ ret_val = e1000_check_for_link_82575(hw);
+ }
+
+ return E1000_SUCCESS;
+}
+
/**
* e1000_power_up_serdes_link_82575 - Power up the serdes link after shutdown
* @hw: pointer to the HW structure
* Using the physical coding sub-layer (PCS), retrieve the current speed and
* duplex, then store the values in the pointers provided.
**/
-static s32 e1000_get_pcs_speed_and_duplex_82575(struct e1000_hw *hw,
- u16 *speed, u16 *duplex)
+STATIC s32 e1000_get_pcs_speed_and_duplex_82575(struct e1000_hw *hw,
+ u16 *speed, u16 *duplex)
{
struct e1000_mac_info *mac = &hw->mac;
u32 pcs;
+ u32 status;
DEBUGFUNC("e1000_get_pcs_speed_and_duplex_82575");
- /* Set up defaults for the return values of this function */
- mac->serdes_has_link = FALSE;
- *speed = 0;
- *duplex = 0;
-
/*
* Read the PCS Status register for link state. For non-copper mode,
* the status register is not accurate. The PCS status register is
pcs = E1000_READ_REG(hw, E1000_PCS_LSTAT);
/*
- * The link up bit determines when link is up on autoneg. The sync ok
- * gets set once both sides sync up and agree upon link. Stable link
- * can be determined by checking for both link up and link sync ok
+ * The link up bit determines when link is up on autoneg.
*/
- if ((pcs & E1000_PCS_LSTS_LINK_OK) && (pcs & E1000_PCS_LSTS_SYNK_OK)) {
- mac->serdes_has_link = TRUE;
+ if (pcs & E1000_PCS_LSTS_LINK_OK) {
+ mac->serdes_has_link = true;
/* Detect and store PCS speed */
if (pcs & E1000_PCS_LSTS_SPEED_1000)
*duplex = FULL_DUPLEX;
else
*duplex = HALF_DUPLEX;
+
+ /* Check if it is an I354 2.5Gb backplane connection. */
+ if (mac->type == e1000_i354) {
+ status = E1000_READ_REG(hw, E1000_STATUS);
+ if ((status & E1000_STATUS_2P5_SKU) &&
+ !(status & E1000_STATUS_2P5_SKU_OVER)) {
+ *speed = SPEED_2500;
+ *duplex = FULL_DUPLEX;
+ DEBUGOUT("2500 Mbs, ");
+ DEBUGOUT("Full Duplex\n");
+ }
}
+ } else {
+ mac->serdes_has_link = false;
+ *speed = 0;
+ *duplex = 0;
+ }
+
return E1000_SUCCESS;
}
*
* This inits the hardware readying it for operation.
**/
-STATIC s32 e1000_init_hw_82575(struct e1000_hw *hw)
+s32 e1000_init_hw_82575(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
s32 ret_val;
/* Setup link and flow control */
ret_val = mac->ops.setup_link(hw);
+ /* Set the default MTU size */
+ hw->dev_spec._82575.mtu = 1500;
+
/*
* Clear all of the statistics registers (clear on read). It is
* important that we do this after we have tried to establish link
STATIC s32 e1000_setup_copper_link_82575(struct e1000_hw *hw)
{
u32 ctrl;
- s32 ret_val;
+ s32 ret_val;
+ u32 phpm_reg;
DEBUGFUNC("e1000_setup_copper_link_82575");
ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
+ /* Clear Go Link Disconnect bit on supported devices */
+ switch (hw->mac.type) {
+ case e1000_82580:
+ case e1000_i350:
+ case e1000_i210:
+ case e1000_i211:
+ phpm_reg = E1000_READ_REG(hw, E1000_82580_PHY_POWER_MGMT);
+ phpm_reg &= ~E1000_82580_PM_GO_LINKD;
+ E1000_WRITE_REG(hw, E1000_82580_PHY_POWER_MGMT, phpm_reg);
+ break;
+ default:
+ break;
+ }
+
ret_val = e1000_setup_serdes_link_82575(hw);
if (ret_val)
goto out;
- if (e1000_sgmii_active_82575(hw) && !hw->phy.reset_disable) {
+ if (e1000_sgmii_active_82575(hw)) {
/* allow time for SFP cage time to power up phy */
msec_delay(300);
}
}
switch (hw->phy.type) {
+ case e1000_phy_i210:
case e1000_phy_m88:
- if (hw->phy.id == I347AT4_E_PHY_ID ||
- hw->phy.id == M88E1112_E_PHY_ID ||
- hw->phy.id == M88E1340M_E_PHY_ID)
+ switch (hw->phy.id) {
+ case I347AT4_E_PHY_ID:
+ case M88E1112_E_PHY_ID:
+ case M88E1340M_E_PHY_ID:
+ case M88E1543_E_PHY_ID:
+ case M88E1512_E_PHY_ID:
+ case I210_I_PHY_ID:
ret_val = e1000_copper_link_setup_m88_gen2(hw);
- else
+ break;
+ default:
ret_val = e1000_copper_link_setup_m88(hw);
+ break;
+ }
break;
case e1000_phy_igp_3:
ret_val = e1000_copper_link_setup_igp(hw);
**/
STATIC s32 e1000_setup_serdes_link_82575(struct e1000_hw *hw)
{
- u32 ctrl_ext, ctrl_reg, reg;
+ u32 ctrl_ext, ctrl_reg, reg, anadv_reg;
bool pcs_autoneg;
+ s32 ret_val = E1000_SUCCESS;
+ u16 data;
DEBUGFUNC("e1000_setup_serdes_link_82575");
if ((hw->phy.media_type != e1000_media_type_internal_serdes) &&
!e1000_sgmii_active_82575(hw))
- return E1000_SUCCESS;
+ return ret_val;
/*
* On the 82575, SerDes loopback mode persists until it is
pcs_autoneg = false;
/* fall through to default case */
default:
+ if (hw->mac.type == e1000_82575 ||
+ hw->mac.type == e1000_82576) {
+ ret_val = hw->nvm.ops.read(hw, NVM_COMPAT, 1, &data);
+ if (ret_val) {
+ DEBUGOUT("NVM Read Error\n");
+ return ret_val;
+ }
+
+ if (data & E1000_EEPROM_PCS_AUTONEG_DISABLE_BIT)
+ pcs_autoneg = false;
+ }
+
/*
* non-SGMII modes only supports a speed of 1000/Full for the
* link so it is best to just force the MAC and let the pcs
* link either autoneg or be forced to 1000/Full
*/
ctrl_reg |= E1000_CTRL_SPD_1000 | E1000_CTRL_FRCSPD |
- E1000_CTRL_FD | E1000_CTRL_FRCDPX;
+ E1000_CTRL_FD | E1000_CTRL_FRCDPX;
/* set speed of 1000/Full if speed/duplex is forced */
reg |= E1000_PCS_LCTL_FSV_1000 | E1000_PCS_LCTL_FDV_FULL;
* However, both are supported by the hardware and some drivers/tools.
*/
reg &= ~(E1000_PCS_LCTL_AN_ENABLE | E1000_PCS_LCTL_FLV_LINK_UP |
- E1000_PCS_LCTL_FSD | E1000_PCS_LCTL_FORCE_LINK);
-
- /*
- * We force flow control to prevent the CTRL register values from being
- * overwritten by the autonegotiated flow control values
- */
- reg |= E1000_PCS_LCTL_FORCE_FCTRL;
+ E1000_PCS_LCTL_FSD | E1000_PCS_LCTL_FORCE_LINK);
if (pcs_autoneg) {
/* Set PCS register for autoneg */
reg |= E1000_PCS_LCTL_AN_ENABLE | /* Enable Autoneg */
E1000_PCS_LCTL_AN_RESTART; /* Restart autoneg */
+
+ /* Disable force flow control for autoneg */
+ reg &= ~E1000_PCS_LCTL_FORCE_FCTRL;
+
+ /* Configure flow control advertisement for autoneg */
+ anadv_reg = E1000_READ_REG(hw, E1000_PCS_ANADV);
+ anadv_reg &= ~(E1000_TXCW_ASM_DIR | E1000_TXCW_PAUSE);
+
+ switch (hw->fc.requested_mode) {
+ case e1000_fc_full:
+ case e1000_fc_rx_pause:
+ anadv_reg |= E1000_TXCW_ASM_DIR;
+ anadv_reg |= E1000_TXCW_PAUSE;
+ break;
+ case e1000_fc_tx_pause:
+ anadv_reg |= E1000_TXCW_ASM_DIR;
+ break;
+ default:
+ break;
+ }
+
+ E1000_WRITE_REG(hw, E1000_PCS_ANADV, anadv_reg);
+
DEBUGOUT1("Configuring Autoneg:PCS_LCTL=0x%08X\n", reg);
} else {
/* Set PCS register for forced link */
- reg |= E1000_PCS_LCTL_FSD; /* Force Speed */
+ reg |= E1000_PCS_LCTL_FSD; /* Force Speed */
+
+ /* Force flow control for forced link */
+ reg |= E1000_PCS_LCTL_FORCE_FCTRL;
+
DEBUGOUT1("Configuring Forced Link:PCS_LCTL=0x%08X\n", reg);
}
E1000_WRITE_REG(hw, E1000_PCS_LCTL, reg);
- if (!e1000_sgmii_active_82575(hw))
+ if (!pcs_autoneg && !e1000_sgmii_active_82575(hw))
e1000_force_mac_fc_generic(hw);
- return E1000_SUCCESS;
+ return ret_val;
+}
+
+/**
+ * e1000_get_media_type_82575 - derives current media type.
+ * @hw: pointer to the HW structure
+ *
+ * The media type is chosen reflecting few settings.
+ * The following are taken into account:
+ * - link mode set in the current port Init Control Word #3
+ * - current link mode settings in CSR register
+ * - MDIO vs. I2C PHY control interface chosen
+ * - SFP module media type
+ **/
+STATIC s32 e1000_get_media_type_82575(struct e1000_hw *hw)
+{
+ struct e1000_dev_spec_82575 *dev_spec = &hw->dev_spec._82575;
+ s32 ret_val = E1000_SUCCESS;
+ u32 ctrl_ext = 0;
+ u32 link_mode = 0;
+
+ /* Set internal phy as default */
+ dev_spec->sgmii_active = false;
+ dev_spec->module_plugged = false;
+
+ /* Get CSR setting */
+ ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
+
+ /* extract link mode setting */
+ link_mode = ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK;
+
+ switch (link_mode) {
+ case E1000_CTRL_EXT_LINK_MODE_1000BASE_KX:
+ hw->phy.media_type = e1000_media_type_internal_serdes;
+ break;
+ case E1000_CTRL_EXT_LINK_MODE_GMII:
+ hw->phy.media_type = e1000_media_type_copper;
+ break;
+ case E1000_CTRL_EXT_LINK_MODE_SGMII:
+ /* Get phy control interface type set (MDIO vs. I2C)*/
+ if (e1000_sgmii_uses_mdio_82575(hw)) {
+ hw->phy.media_type = e1000_media_type_copper;
+ dev_spec->sgmii_active = true;
+ break;
+ }
+ /* fall through for I2C based SGMII */
+ case E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES:
+ /* read media type from SFP EEPROM */
+ ret_val = e1000_set_sfp_media_type_82575(hw);
+ if ((ret_val != E1000_SUCCESS) ||
+ (hw->phy.media_type == e1000_media_type_unknown)) {
+ /*
+ * If media type was not identified then return media
+ * type defined by the CTRL_EXT settings.
+ */
+ hw->phy.media_type = e1000_media_type_internal_serdes;
+
+ if (link_mode == E1000_CTRL_EXT_LINK_MODE_SGMII) {
+ hw->phy.media_type = e1000_media_type_copper;
+ dev_spec->sgmii_active = true;
+ }
+
+ break;
+ }
+
+ /* do not change link mode for 100BaseFX */
+ if (dev_spec->eth_flags.e100_base_fx)
+ break;
+
+ /* change current link mode setting */
+ ctrl_ext &= ~E1000_CTRL_EXT_LINK_MODE_MASK;
+
+ if (hw->phy.media_type == e1000_media_type_copper)
+ ctrl_ext |= E1000_CTRL_EXT_LINK_MODE_SGMII;
+ else
+ ctrl_ext |= E1000_CTRL_EXT_LINK_MODE_PCIE_SERDES;
+
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
+
+ break;
+ }
+
+ return ret_val;
+}
+
+/**
+ * e1000_set_sfp_media_type_82575 - derives SFP module media type.
+ * @hw: pointer to the HW structure
+ *
+ * The media type is chosen based on SFP module.
+ * compatibility flags retrieved from SFP ID EEPROM.
+ **/
+STATIC s32 e1000_set_sfp_media_type_82575(struct e1000_hw *hw)
+{
+ s32 ret_val = E1000_ERR_CONFIG;
+ u32 ctrl_ext = 0;
+ struct e1000_dev_spec_82575 *dev_spec = &hw->dev_spec._82575;
+ struct sfp_e1000_flags *eth_flags = &dev_spec->eth_flags;
+ u8 tranceiver_type = 0;
+ s32 timeout = 3;
+
+ /* Turn I2C interface ON and power on sfp cage */
+ ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
+ ctrl_ext &= ~E1000_CTRL_EXT_SDP3_DATA;
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext | E1000_CTRL_I2C_ENA);
+
+ E1000_WRITE_FLUSH(hw);
+
+ /* Read SFP module data */
+ while (timeout) {
+ ret_val = e1000_read_sfp_data_byte(hw,
+ E1000_I2CCMD_SFP_DATA_ADDR(E1000_SFF_IDENTIFIER_OFFSET),
+ &tranceiver_type);
+ if (ret_val == E1000_SUCCESS)
+ break;
+ msec_delay(100);
+ timeout--;
+ }
+ if (ret_val != E1000_SUCCESS)
+ goto out;
+
+ ret_val = e1000_read_sfp_data_byte(hw,
+ E1000_I2CCMD_SFP_DATA_ADDR(E1000_SFF_ETH_FLAGS_OFFSET),
+ (u8 *)eth_flags);
+ if (ret_val != E1000_SUCCESS)
+ goto out;
+
+ /* Check if there is some SFP module plugged and powered */
+ if ((tranceiver_type == E1000_SFF_IDENTIFIER_SFP) ||
+ (tranceiver_type == E1000_SFF_IDENTIFIER_SFF)) {
+ dev_spec->module_plugged = true;
+ if (eth_flags->e1000_base_lx || eth_flags->e1000_base_sx) {
+ hw->phy.media_type = e1000_media_type_internal_serdes;
+ } else if (eth_flags->e100_base_fx) {
+ dev_spec->sgmii_active = true;
+ hw->phy.media_type = e1000_media_type_internal_serdes;
+ } else if (eth_flags->e1000_base_t) {
+ dev_spec->sgmii_active = true;
+ hw->phy.media_type = e1000_media_type_copper;
+ } else {
+ hw->phy.media_type = e1000_media_type_unknown;
+ DEBUGOUT("PHY module has not been recognized\n");
+ goto out;
+ }
+ } else {
+ hw->phy.media_type = e1000_media_type_unknown;
+ }
+ ret_val = E1000_SUCCESS;
+out:
+ /* Restore I2C interface setting */
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
+ return ret_val;
}
/**
* which can be enabled for use in the embedded applications. Simply
* return the current state of the sgmii interface.
**/
-static bool e1000_sgmii_active_82575(struct e1000_hw *hw)
+STATIC bool e1000_sgmii_active_82575(struct e1000_hw *hw)
{
struct e1000_dev_spec_82575 *dev_spec = &hw->dev_spec._82575;
return dev_spec->sgmii_active;
**/
STATIC s32 e1000_read_mac_addr_82575(struct e1000_hw *hw)
{
- s32 ret_val = E1000_SUCCESS;
+ s32 ret_val;
DEBUGFUNC("e1000_read_mac_addr_82575");
for (i = 0; i < 4; i++) {
rxdctl[i] = E1000_READ_REG(hw, E1000_RXDCTL(i));
E1000_WRITE_REG(hw, E1000_RXDCTL(i),
- rxdctl[i] & ~E1000_RXDCTL_QUEUE_ENABLE);
+ rxdctl[i] & ~E1000_RXDCTL_QUEUE_ENABLE);
}
/* Poll all queues to verify they have shut down */
for (ms_wait = 0; ms_wait < 10; ms_wait++) {
* 16ms to 55ms
*/
ret_val = e1000_read_pcie_cap_reg(hw, PCIE_DEVICE_CONTROL2,
- &pcie_devctl2);
+ &pcie_devctl2);
if (ret_val)
goto out;
pcie_devctl2 |= PCIE_DEVICE_CONTROL2_16ms;
ret_val = e1000_write_pcie_cap_reg(hw, PCIE_DEVICE_CONTROL2,
- &pcie_devctl2);
+ &pcie_devctl2);
out:
/* disable completion timeout resend */
gcr &= ~E1000_GCR_CMPL_TMOUT_RESEND;
**/
void e1000_vmdq_set_anti_spoofing_pf(struct e1000_hw *hw, bool enable, int pf)
{
- u32 dtxswc;
+ u32 reg_val, reg_offset;
switch (hw->mac.type) {
case e1000_82576:
- dtxswc = E1000_READ_REG(hw, E1000_DTXSWC);
- if (enable) {
- dtxswc |= (E1000_DTXSWC_MAC_SPOOF_MASK |
- E1000_DTXSWC_VLAN_SPOOF_MASK);
- /* The PF can spoof - it has to in order to
- * support emulation mode NICs */
- dtxswc ^= (1 << pf | 1 << (pf + MAX_NUM_VFS));
- } else {
- dtxswc &= ~(E1000_DTXSWC_MAC_SPOOF_MASK |
- E1000_DTXSWC_VLAN_SPOOF_MASK);
- }
- E1000_WRITE_REG(hw, E1000_DTXSWC, dtxswc);
+ reg_offset = E1000_DTXSWC;
break;
case e1000_i350:
- dtxswc = E1000_READ_REG(hw, E1000_TXSWC);
- if (enable) {
- dtxswc |= (E1000_DTXSWC_MAC_SPOOF_MASK |
- E1000_DTXSWC_VLAN_SPOOF_MASK);
- /* The PF can spoof - it has to in order to
- * support emulation mode NICs
- */
- dtxswc ^= (1 << pf | 1 << (pf + MAX_NUM_VFS));
- } else {
- dtxswc &= ~(E1000_DTXSWC_MAC_SPOOF_MASK |
- E1000_DTXSWC_VLAN_SPOOF_MASK);
- }
- E1000_WRITE_REG(hw, E1000_TXSWC, dtxswc);
- default:
+ case e1000_i354:
+ reg_offset = E1000_TXSWC;
break;
+ default:
+ return;
}
+
+ reg_val = E1000_READ_REG(hw, reg_offset);
+ if (enable) {
+ reg_val |= (E1000_DTXSWC_MAC_SPOOF_MASK |
+ E1000_DTXSWC_VLAN_SPOOF_MASK);
+ /* The PF can spoof - it has to in order to
+ * support emulation mode NICs
+ */
+ reg_val ^= (1 << pf | 1 << (pf + MAX_NUM_VFS));
+ } else {
+ reg_val &= ~(E1000_DTXSWC_MAC_SPOOF_MASK |
+ E1000_DTXSWC_VLAN_SPOOF_MASK);
+ }
+ E1000_WRITE_REG(hw, reg_offset, reg_val);
}
/**
E1000_WRITE_REG(hw, E1000_DTXSWC, dtxswc);
break;
case e1000_i350:
+ case e1000_i354:
dtxswc = E1000_READ_REG(hw, E1000_TXSWC);
if (enable)
dtxswc |= E1000_DTXSWC_VMDQ_LOOPBACK_EN;
goto out;
ret_val = hw->nvm.ops.read(hw, NVM_INIT_CONTROL3_PORT_A +
- NVM_82580_LAN_FUNC_OFFSET(hw->bus.func), 1,
- &nvm_data);
+ NVM_82580_LAN_FUNC_OFFSET(hw->bus.func), 1,
+ &nvm_data);
if (ret_val) {
DEBUGOUT("NVM Read Error\n");
goto out;
hw->dev_spec._82575.global_device_reset = false;
+ /* 82580 does not reliably do global_device_reset due to hw errata */
+ if (hw->mac.type == e1000_82580)
+ global_device_reset = false;
+
/* Get current control state. */
ctrl = E1000_READ_REG(hw, E1000_CTRL);
msec_delay(10);
/* Determine whether or not a global dev reset is requested */
- if (global_device_reset &&
- e1000_acquire_swfw_sync_82575(hw, swmbsw_mask))
- global_device_reset = FALSE;
+ if (global_device_reset && hw->mac.ops.acquire_swfw_sync(hw,
+ swmbsw_mask))
+ global_device_reset = false;
- if (global_device_reset &&
- !(E1000_READ_REG(hw, E1000_STATUS) & E1000_STAT_DEV_RST_SET))
+ if (global_device_reset && !(E1000_READ_REG(hw, E1000_STATUS) &
+ E1000_STAT_DEV_RST_SET))
ctrl |= E1000_CTRL_DEV_RST;
else
ctrl |= E1000_CTRL_RST;
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
+ E1000_WRITE_FLUSH(hw);
/* Add delay to insure DEV_RST has time to complete */
if (global_device_reset)
DEBUGOUT("Auto Read Done did not complete\n");
}
- /* If EEPROM is not present, run manual init scripts */
- if (!(E1000_READ_REG(hw, E1000_EECD) & E1000_EECD_PRES))
- e1000_reset_init_script_82575(hw);
-
/* clear global device reset status bit */
E1000_WRITE_REG(hw, E1000_STATUS, E1000_STAT_DEV_RST_SET);
/* Release semaphore */
if (global_device_reset)
- e1000_release_swfw_sync_82575(hw, swmbsw_mask);
+ hw->mac.ops.release_swfw_sync(hw, swmbsw_mask);
return ret_val;
}
}
checksum = (u16) NVM_SUM - checksum;
ret_val = hw->nvm.ops.write(hw, (NVM_CHECKSUM_REG + offset), 1,
- &checksum);
+ &checksum);
if (ret_val)
DEBUGOUT("NVM Write Error while updating checksum.\n");
**/
STATIC s32 e1000_validate_nvm_checksum_82580(struct e1000_hw *hw)
{
- s32 ret_val = E1000_SUCCESS;
+ s32 ret_val;
u16 eeprom_regions_count = 1;
u16 j, nvm_data;
u16 nvm_offset;
for (j = 0; j < eeprom_regions_count; j++) {
nvm_offset = NVM_82580_LAN_FUNC_OFFSET(j);
ret_val = e1000_validate_nvm_checksum_with_offset(hw,
- nvm_offset);
+ nvm_offset);
if (ret_val != E1000_SUCCESS)
goto out;
}
/* set compatibility bit to validate checksums appropriately */
nvm_data = nvm_data | NVM_COMPATIBILITY_BIT_MASK;
ret_val = hw->nvm.ops.write(hw, NVM_COMPATIBILITY_REG_3, 1,
- &nvm_data);
+ &nvm_data);
if (ret_val) {
DEBUGOUT("NVM Write Error while updating checksum compatibility bit.\n");
goto out;
ret_val = e1000_update_nvm_checksum_with_offset(hw, nvm_offset);
if (ret_val)
goto out;
- }
+ }
out:
return ret_val;
for (j = 0; j < 4; j++) {
nvm_offset = NVM_82580_LAN_FUNC_OFFSET(j);
ret_val = e1000_validate_nvm_checksum_with_offset(hw,
- nvm_offset);
+ nvm_offset);
if (ret_val != E1000_SUCCESS)
goto out;
}
}
/**
- * e1000_set_eee_i350 - Enable/disable EEE support
+ * __e1000_access_emi_reg - Read/write EMI register
* @hw: pointer to the HW structure
- *
- * Enable/disable EEE based on setting in dev_spec structure.
- *
+ * @addr: EMI address to program
+ * @data: pointer to value to read/write from/to the EMI address
+ * @read: boolean flag to indicate read or write
**/
-s32 e1000_set_eee_i350(struct e1000_hw *hw)
+STATIC s32 __e1000_access_emi_reg(struct e1000_hw *hw, u16 address,
+ u16 *data, bool read)
{
- s32 ret_val = E1000_SUCCESS;
- u32 ipcnfg, eeer, ctrl_ext;
+ s32 ret_val;
- DEBUGFUNC("e1000_set_eee_i350");
+ DEBUGFUNC("__e1000_access_emi_reg");
- ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
- if ((hw->mac.type != e1000_i350) ||
- (ctrl_ext & E1000_CTRL_EXT_LINK_MODE_MASK))
- goto out;
+ ret_val = hw->phy.ops.write_reg(hw, E1000_EMIADD, address);
+ if (ret_val)
+ return ret_val;
+
+ if (read)
+ ret_val = hw->phy.ops.read_reg(hw, E1000_EMIDATA, data);
+ else
+ ret_val = hw->phy.ops.write_reg(hw, E1000_EMIDATA, *data);
+
+ return ret_val;
+}
+
+/**
+ * e1000_read_emi_reg - Read Extended Management Interface register
+ * @hw: pointer to the HW structure
+ * @addr: EMI address to program
+ * @data: value to be read from the EMI address
+ **/
+s32 e1000_read_emi_reg(struct e1000_hw *hw, u16 addr, u16 *data)
+{
+ DEBUGFUNC("e1000_read_emi_reg");
+
+ return __e1000_access_emi_reg(hw, addr, data, true);
+}
+
+/**
+ * e1000_initialize_M88E1512_phy - Initialize M88E1512 PHY
+ * @hw: pointer to the HW structure
+ *
+ * Initialize Marverl 1512 to work correctly with Avoton.
+ **/
+s32 e1000_initialize_M88E1512_phy(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val = E1000_SUCCESS;
+
+ DEBUGFUNC("e1000_initialize_M88E1512_phy");
+
+ /* Check if this is correct PHY. */
+ if (phy->id != M88E1512_E_PHY_ID)
+ goto out;
+
+ /* Switch to PHY page 0xFF. */
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1543_PAGE_ADDR, 0x00FF);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1512_CFG_REG_2, 0x214B);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1512_CFG_REG_1, 0x2144);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1512_CFG_REG_2, 0x0C28);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1512_CFG_REG_1, 0x2146);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1512_CFG_REG_2, 0xB233);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1512_CFG_REG_1, 0x214D);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1512_CFG_REG_2, 0xCC0C);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1512_CFG_REG_1, 0x2159);
+ if (ret_val)
+ goto out;
+
+ /* Switch to PHY page 0xFB. */
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1543_PAGE_ADDR, 0x00FB);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1512_CFG_REG_3, 0x000D);
+ if (ret_val)
+ goto out;
+
+ /* Switch to PHY page 0x12. */
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1543_PAGE_ADDR, 0x12);
+ if (ret_val)
+ goto out;
+
+ /* Change mode to SGMII-to-Copper */
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1512_MODE, 0x8001);
+ if (ret_val)
+ goto out;
+
+ /* Return the PHY to page 0. */
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1543_PAGE_ADDR, 0);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.commit(hw);
+ if (ret_val) {
+ DEBUGOUT("Error committing the PHY changes\n");
+ return ret_val;
+ }
+
+ msec_delay(1000);
+out:
+ return ret_val;
+}
+
+/**
+ * e1000_set_eee_i350 - Enable/disable EEE support
+ * @hw: pointer to the HW structure
+ *
+ * Enable/disable EEE based on setting in dev_spec structure.
+ *
+ **/
+s32 e1000_set_eee_i350(struct e1000_hw *hw)
+{
+ s32 ret_val = E1000_SUCCESS;
+ u32 ipcnfg, eeer;
+
+ DEBUGFUNC("e1000_set_eee_i350");
+
+ if ((hw->mac.type < e1000_i350) ||
+ (hw->phy.media_type != e1000_media_type_copper))
+ goto out;
ipcnfg = E1000_READ_REG(hw, E1000_IPCNFG);
eeer = E1000_READ_REG(hw, E1000_EEER);
/* enable or disable per user setting */
if (!(hw->dev_spec._82575.eee_disable)) {
+ u32 eee_su = E1000_READ_REG(hw, E1000_EEE_SU);
+
ipcnfg |= (E1000_IPCNFG_EEE_1G_AN | E1000_IPCNFG_EEE_100M_AN);
eeer |= (E1000_EEER_TX_LPI_EN | E1000_EEER_RX_LPI_EN |
- E1000_EEER_LPI_FC);
+ E1000_EEER_LPI_FC);
+ /* This bit should not be set in normal operation. */
+ if (eee_su & E1000_EEE_SU_LPI_CLK_STP)
+ DEBUGOUT("LPI Clock Stop Bit should not be set!\n");
} else {
ipcnfg &= ~(E1000_IPCNFG_EEE_1G_AN | E1000_IPCNFG_EEE_100M_AN);
eeer &= ~(E1000_EEER_TX_LPI_EN | E1000_EEER_RX_LPI_EN |
- E1000_EEER_LPI_FC);
+ E1000_EEER_LPI_FC);
}
E1000_WRITE_REG(hw, E1000_IPCNFG, ipcnfg);
E1000_WRITE_REG(hw, E1000_EEER, eeer);
- E1000_READ_REG(hw, E1000_IPCNFG);
- E1000_READ_REG(hw, E1000_EEER);
+ E1000_READ_REG(hw, E1000_IPCNFG);
+ E1000_READ_REG(hw, E1000_EEER);
+out:
+
+ return ret_val;
+}
+
+/**
+ * e1000_set_eee_i354 - Enable/disable EEE support
+ * @hw: pointer to the HW structure
+ *
+ * Enable/disable EEE legacy mode based on setting in dev_spec structure.
+ *
+ **/
+s32 e1000_set_eee_i354(struct e1000_hw *hw)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val = E1000_SUCCESS;
+ u16 phy_data;
+
+ DEBUGFUNC("e1000_set_eee_i354");
+
+ if ((hw->phy.media_type != e1000_media_type_copper) ||
+ ((phy->id != M88E1543_E_PHY_ID) &&
+ (phy->id != M88E1512_E_PHY_ID)))
+ goto out;
+
+ if (!hw->dev_spec._82575.eee_disable) {
+ /* Switch to PHY page 18. */
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1543_PAGE_ADDR, 18);
+ if (ret_val)
+ goto out;
+
+ ret_val = phy->ops.read_reg(hw, E1000_M88E1543_EEE_CTRL_1,
+ &phy_data);
+ if (ret_val)
+ goto out;
+
+ phy_data |= E1000_M88E1543_EEE_CTRL_1_MS;
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1543_EEE_CTRL_1,
+ phy_data);
+ if (ret_val)
+ goto out;
+
+ /* Return the PHY to page 0. */
+ ret_val = phy->ops.write_reg(hw, E1000_M88E1543_PAGE_ADDR, 0);
+ if (ret_val)
+ goto out;
+
+ /* Turn on EEE advertisement. */
+ ret_val = e1000_read_xmdio_reg(hw, E1000_EEE_ADV_ADDR_I354,
+ E1000_EEE_ADV_DEV_I354,
+ &phy_data);
+ if (ret_val)
+ goto out;
+
+ phy_data |= E1000_EEE_ADV_100_SUPPORTED |
+ E1000_EEE_ADV_1000_SUPPORTED;
+ ret_val = e1000_write_xmdio_reg(hw, E1000_EEE_ADV_ADDR_I354,
+ E1000_EEE_ADV_DEV_I354,
+ phy_data);
+ } else {
+ /* Turn off EEE advertisement. */
+ ret_val = e1000_read_xmdio_reg(hw, E1000_EEE_ADV_ADDR_I354,
+ E1000_EEE_ADV_DEV_I354,
+ &phy_data);
+ if (ret_val)
+ goto out;
+
+ phy_data &= ~(E1000_EEE_ADV_100_SUPPORTED |
+ E1000_EEE_ADV_1000_SUPPORTED);
+ ret_val = e1000_write_xmdio_reg(hw, E1000_EEE_ADV_ADDR_I354,
+ E1000_EEE_ADV_DEV_I354,
+ phy_data);
+ }
+
out:
+ return ret_val;
+}
+
+/**
+ * e1000_get_eee_status_i354 - Get EEE status
+ * @hw: pointer to the HW structure
+ * @status: EEE status
+ *
+ * Get EEE status by guessing based on whether Tx or Rx LPI indications have
+ * been received.
+ **/
+s32 e1000_get_eee_status_i354(struct e1000_hw *hw, bool *status)
+{
+ struct e1000_phy_info *phy = &hw->phy;
+ s32 ret_val = E1000_SUCCESS;
+ u16 phy_data;
+
+ DEBUGFUNC("e1000_get_eee_status_i354");
+
+ /* Check if EEE is supported on this device. */
+ if ((hw->phy.media_type != e1000_media_type_copper) ||
+ ((phy->id != M88E1543_E_PHY_ID) &&
+ (phy->id != M88E1512_E_PHY_ID)))
+ goto out;
+
+ ret_val = e1000_read_xmdio_reg(hw, E1000_PCS_STATUS_ADDR_I354,
+ E1000_PCS_STATUS_DEV_I354,
+ &phy_data);
+ if (ret_val)
+ goto out;
+
+ *status = phy_data & (E1000_PCS_STATUS_TX_LPI_RCVD |
+ E1000_PCS_STATUS_RX_LPI_RCVD) ? true : false;
+
+out:
+ return ret_val;
+}
+
+/* Due to a hw errata, if the host tries to configure the VFTA register
+ * while performing queries from the BMC or DMA, then the VFTA in some
+ * cases won't be written.
+ */
+
+/**
+ * e1000_clear_vfta_i350 - Clear VLAN filter table
+ * @hw: pointer to the HW structure
+ *
+ * Clears the register array which contains the VLAN filter table by
+ * setting all the values to 0.
+ **/
+void e1000_clear_vfta_i350(struct e1000_hw *hw)
+{
+ u32 offset;
+ int i;
+
+ DEBUGFUNC("e1000_clear_vfta_350");
+
+ for (offset = 0; offset < E1000_VLAN_FILTER_TBL_SIZE; offset++) {
+ for (i = 0; i < 10; i++)
+ E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, 0);
+
+ E1000_WRITE_FLUSH(hw);
+ }
+}
+
+/**
+ * e1000_write_vfta_i350 - Write value to VLAN filter table
+ * @hw: pointer to the HW structure
+ * @offset: register offset in VLAN filter table
+ * @value: register value written to VLAN filter table
+ *
+ * Writes value at the given offset in the register array which stores
+ * the VLAN filter table.
+ **/
+void e1000_write_vfta_i350(struct e1000_hw *hw, u32 offset, u32 value)
+{
+ int i;
+
+ DEBUGFUNC("e1000_write_vfta_350");
+
+ for (i = 0; i < 10; i++)
+ E1000_WRITE_REG_ARRAY(hw, E1000_VFTA, offset, value);
+
+ E1000_WRITE_FLUSH(hw);
+}
+
+
+/**
+ * e1000_set_i2c_bb - Enable I2C bit-bang
+ * @hw: pointer to the HW structure
+ *
+ * Enable I2C bit-bang interface
+ *
+ **/
+s32 e1000_set_i2c_bb(struct e1000_hw *hw)
+{
+ s32 ret_val = E1000_SUCCESS;
+ u32 ctrl_ext, i2cparams;
+
+ DEBUGFUNC("e1000_set_i2c_bb");
+
+ ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
+ ctrl_ext |= E1000_CTRL_I2C_ENA;
+ E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
+ E1000_WRITE_FLUSH(hw);
+
+ i2cparams = E1000_READ_REG(hw, E1000_I2CPARAMS);
+ i2cparams |= E1000_I2CBB_EN;
+ i2cparams |= E1000_I2C_DATA_OE_N;
+ i2cparams |= E1000_I2C_CLK_OE_N;
+ E1000_WRITE_REG(hw, E1000_I2CPARAMS, i2cparams);
+ E1000_WRITE_FLUSH(hw);
return ret_val;
}
+
+/**
+ * e1000_read_i2c_byte_generic - Reads 8 bit word over I2C
+ * @hw: pointer to hardware structure
+ * @byte_offset: byte offset to read
+ * @dev_addr: device address
+ * @data: value read
+ *
+ * Performs byte read operation over I2C interface at
+ * a specified device address.
+ **/
+s32 e1000_read_i2c_byte_generic(struct e1000_hw *hw, u8 byte_offset,
+ u8 dev_addr, u8 *data)
+{
+ s32 status = E1000_SUCCESS;
+ u32 max_retry = 10;
+ u32 retry = 1;
+ u16 swfw_mask = 0;
+
+ bool nack = true;
+
+ DEBUGFUNC("e1000_read_i2c_byte_generic");
+
+ swfw_mask = E1000_SWFW_PHY0_SM;
+
+ do {
+ if (hw->mac.ops.acquire_swfw_sync(hw, swfw_mask)
+ != E1000_SUCCESS) {
+ status = E1000_ERR_SWFW_SYNC;
+ goto read_byte_out;
+ }
+
+ e1000_i2c_start(hw);
+
+ /* Device Address and write indication */
+ status = e1000_clock_out_i2c_byte(hw, dev_addr);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ status = e1000_get_i2c_ack(hw);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ status = e1000_clock_out_i2c_byte(hw, byte_offset);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ status = e1000_get_i2c_ack(hw);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ e1000_i2c_start(hw);
+
+ /* Device Address and read indication */
+ status = e1000_clock_out_i2c_byte(hw, (dev_addr | 0x1));
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ status = e1000_get_i2c_ack(hw);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ status = e1000_clock_in_i2c_byte(hw, data);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ status = e1000_clock_out_i2c_bit(hw, nack);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ e1000_i2c_stop(hw);
+ break;
+
+fail:
+ hw->mac.ops.release_swfw_sync(hw, swfw_mask);
+ msec_delay(100);
+ e1000_i2c_bus_clear(hw);
+ retry++;
+ if (retry < max_retry)
+ DEBUGOUT("I2C byte read error - Retrying.\n");
+ else
+ DEBUGOUT("I2C byte read error.\n");
+
+ } while (retry < max_retry);
+
+ hw->mac.ops.release_swfw_sync(hw, swfw_mask);
+
+read_byte_out:
+
+ return status;
+}
+
+/**
+ * e1000_write_i2c_byte_generic - Writes 8 bit word over I2C
+ * @hw: pointer to hardware structure
+ * @byte_offset: byte offset to write
+ * @dev_addr: device address
+ * @data: value to write
+ *
+ * Performs byte write operation over I2C interface at
+ * a specified device address.
+ **/
+s32 e1000_write_i2c_byte_generic(struct e1000_hw *hw, u8 byte_offset,
+ u8 dev_addr, u8 data)
+{
+ s32 status = E1000_SUCCESS;
+ u32 max_retry = 1;
+ u32 retry = 0;
+ u16 swfw_mask = 0;
+
+ DEBUGFUNC("e1000_write_i2c_byte_generic");
+
+ swfw_mask = E1000_SWFW_PHY0_SM;
+
+ if (hw->mac.ops.acquire_swfw_sync(hw, swfw_mask) != E1000_SUCCESS) {
+ status = E1000_ERR_SWFW_SYNC;
+ goto write_byte_out;
+ }
+
+ do {
+ e1000_i2c_start(hw);
+
+ status = e1000_clock_out_i2c_byte(hw, dev_addr);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ status = e1000_get_i2c_ack(hw);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ status = e1000_clock_out_i2c_byte(hw, byte_offset);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ status = e1000_get_i2c_ack(hw);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ status = e1000_clock_out_i2c_byte(hw, data);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ status = e1000_get_i2c_ack(hw);
+ if (status != E1000_SUCCESS)
+ goto fail;
+
+ e1000_i2c_stop(hw);
+ break;
+
+fail:
+ e1000_i2c_bus_clear(hw);
+ retry++;
+ if (retry < max_retry)
+ DEBUGOUT("I2C byte write error - Retrying.\n");
+ else
+ DEBUGOUT("I2C byte write error.\n");
+ } while (retry < max_retry);
+
+ hw->mac.ops.release_swfw_sync(hw, swfw_mask);
+
+write_byte_out:
+
+ return status;
+}
+
+/**
+ * e1000_i2c_start - Sets I2C start condition
+ * @hw: pointer to hardware structure
+ *
+ * Sets I2C start condition (High -> Low on SDA while SCL is High)
+ **/
+STATIC void e1000_i2c_start(struct e1000_hw *hw)
+{
+ u32 i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
+
+ DEBUGFUNC("e1000_i2c_start");
+
+ /* Start condition must begin with data and clock high */
+ e1000_set_i2c_data(hw, &i2cctl, 1);
+ e1000_raise_i2c_clk(hw, &i2cctl);
+
+ /* Setup time for start condition (4.7us) */
+ usec_delay(E1000_I2C_T_SU_STA);
+
+ e1000_set_i2c_data(hw, &i2cctl, 0);
+
+ /* Hold time for start condition (4us) */
+ usec_delay(E1000_I2C_T_HD_STA);
+
+ e1000_lower_i2c_clk(hw, &i2cctl);
+
+ /* Minimum low period of clock is 4.7 us */
+ usec_delay(E1000_I2C_T_LOW);
+
+}
+
+/**
+ * e1000_i2c_stop - Sets I2C stop condition
+ * @hw: pointer to hardware structure
+ *
+ * Sets I2C stop condition (Low -> High on SDA while SCL is High)
+ **/
+STATIC void e1000_i2c_stop(struct e1000_hw *hw)
+{
+ u32 i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
+
+ DEBUGFUNC("e1000_i2c_stop");
+
+ /* Stop condition must begin with data low and clock high */
+ e1000_set_i2c_data(hw, &i2cctl, 0);
+ e1000_raise_i2c_clk(hw, &i2cctl);
+
+ /* Setup time for stop condition (4us) */
+ usec_delay(E1000_I2C_T_SU_STO);
+
+ e1000_set_i2c_data(hw, &i2cctl, 1);
+
+ /* bus free time between stop and start (4.7us)*/
+ usec_delay(E1000_I2C_T_BUF);
+}
+
+/**
+ * e1000_clock_in_i2c_byte - Clocks in one byte via I2C
+ * @hw: pointer to hardware structure
+ * @data: data byte to clock in
+ *
+ * Clocks in one byte data via I2C data/clock
+ **/
+STATIC s32 e1000_clock_in_i2c_byte(struct e1000_hw *hw, u8 *data)
+{
+ s32 i;
+ bool bit = 0;
+
+ DEBUGFUNC("e1000_clock_in_i2c_byte");
+
+ *data = 0;
+ for (i = 7; i >= 0; i--) {
+ e1000_clock_in_i2c_bit(hw, &bit);
+ *data |= bit << i;
+ }
+
+ return E1000_SUCCESS;
+}
+
+/**
+ * e1000_clock_out_i2c_byte - Clocks out one byte via I2C
+ * @hw: pointer to hardware structure
+ * @data: data byte clocked out
+ *
+ * Clocks out one byte data via I2C data/clock
+ **/
+STATIC s32 e1000_clock_out_i2c_byte(struct e1000_hw *hw, u8 data)
+{
+ s32 status = E1000_SUCCESS;
+ s32 i;
+ u32 i2cctl;
+ bool bit = 0;
+
+ DEBUGFUNC("e1000_clock_out_i2c_byte");
+
+ for (i = 7; i >= 0; i--) {
+ bit = (data >> i) & 0x1;
+ status = e1000_clock_out_i2c_bit(hw, bit);
+
+ if (status != E1000_SUCCESS)
+ break;
+ }
+
+ /* Release SDA line (set high) */
+ i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
+
+ i2cctl |= E1000_I2C_DATA_OE_N;
+ E1000_WRITE_REG(hw, E1000_I2CPARAMS, i2cctl);
+ E1000_WRITE_FLUSH(hw);
+
+ return status;
+}
+
+/**
+ * e1000_get_i2c_ack - Polls for I2C ACK
+ * @hw: pointer to hardware structure
+ *
+ * Clocks in/out one bit via I2C data/clock
+ **/
+STATIC s32 e1000_get_i2c_ack(struct e1000_hw *hw)
+{
+ s32 status = E1000_SUCCESS;
+ u32 i = 0;
+ u32 i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
+ u32 timeout = 10;
+ bool ack = true;
+
+ DEBUGFUNC("e1000_get_i2c_ack");
+
+ e1000_raise_i2c_clk(hw, &i2cctl);
+
+ /* Minimum high period of clock is 4us */
+ usec_delay(E1000_I2C_T_HIGH);
+
+ /* Wait until SCL returns high */
+ for (i = 0; i < timeout; i++) {
+ usec_delay(1);
+ i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
+ if (i2cctl & E1000_I2C_CLK_IN)
+ break;
+ }
+ if (!(i2cctl & E1000_I2C_CLK_IN))
+ return E1000_ERR_I2C;
+
+ ack = e1000_get_i2c_data(&i2cctl);
+ if (ack) {
+ DEBUGOUT("I2C ack was not received.\n");
+ status = E1000_ERR_I2C;
+ }
+
+ e1000_lower_i2c_clk(hw, &i2cctl);
+
+ /* Minimum low period of clock is 4.7 us */
+ usec_delay(E1000_I2C_T_LOW);
+
+ return status;
+}
+
+/**
+ * e1000_clock_in_i2c_bit - Clocks in one bit via I2C data/clock
+ * @hw: pointer to hardware structure
+ * @data: read data value
+ *
+ * Clocks in one bit via I2C data/clock
+ **/
+STATIC s32 e1000_clock_in_i2c_bit(struct e1000_hw *hw, bool *data)
+{
+ u32 i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
+
+ DEBUGFUNC("e1000_clock_in_i2c_bit");
+
+ e1000_raise_i2c_clk(hw, &i2cctl);
+
+ /* Minimum high period of clock is 4us */
+ usec_delay(E1000_I2C_T_HIGH);
+
+ i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
+ *data = e1000_get_i2c_data(&i2cctl);
+
+ e1000_lower_i2c_clk(hw, &i2cctl);
+
+ /* Minimum low period of clock is 4.7 us */
+ usec_delay(E1000_I2C_T_LOW);
+
+ return E1000_SUCCESS;
+}
+
+/**
+ * e1000_clock_out_i2c_bit - Clocks in/out one bit via I2C data/clock
+ * @hw: pointer to hardware structure
+ * @data: data value to write
+ *
+ * Clocks out one bit via I2C data/clock
+ **/
+STATIC s32 e1000_clock_out_i2c_bit(struct e1000_hw *hw, bool data)
+{
+ s32 status;
+ u32 i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
+
+ DEBUGFUNC("e1000_clock_out_i2c_bit");
+
+ status = e1000_set_i2c_data(hw, &i2cctl, data);
+ if (status == E1000_SUCCESS) {
+ e1000_raise_i2c_clk(hw, &i2cctl);
+
+ /* Minimum high period of clock is 4us */
+ usec_delay(E1000_I2C_T_HIGH);
+
+ e1000_lower_i2c_clk(hw, &i2cctl);
+
+ /* Minimum low period of clock is 4.7 us.
+ * This also takes care of the data hold time.
+ */
+ usec_delay(E1000_I2C_T_LOW);
+ } else {
+ status = E1000_ERR_I2C;
+ DEBUGOUT1("I2C data was not set to %X\n", data);
+ }
+
+ return status;
+}
+/**
+ * e1000_raise_i2c_clk - Raises the I2C SCL clock
+ * @hw: pointer to hardware structure
+ * @i2cctl: Current value of I2CCTL register
+ *
+ * Raises the I2C clock line '0'->'1'
+ **/
+STATIC void e1000_raise_i2c_clk(struct e1000_hw *hw, u32 *i2cctl)
+{
+ DEBUGFUNC("e1000_raise_i2c_clk");
+
+ *i2cctl |= E1000_I2C_CLK_OUT;
+ *i2cctl &= ~E1000_I2C_CLK_OE_N;
+ E1000_WRITE_REG(hw, E1000_I2CPARAMS, *i2cctl);
+ E1000_WRITE_FLUSH(hw);
+
+ /* SCL rise time (1000ns) */
+ usec_delay(E1000_I2C_T_RISE);
+}
+
+/**
+ * e1000_lower_i2c_clk - Lowers the I2C SCL clock
+ * @hw: pointer to hardware structure
+ * @i2cctl: Current value of I2CCTL register
+ *
+ * Lowers the I2C clock line '1'->'0'
+ **/
+STATIC void e1000_lower_i2c_clk(struct e1000_hw *hw, u32 *i2cctl)
+{
+
+ DEBUGFUNC("e1000_lower_i2c_clk");
+
+ *i2cctl &= ~E1000_I2C_CLK_OUT;
+ *i2cctl &= ~E1000_I2C_CLK_OE_N;
+ E1000_WRITE_REG(hw, E1000_I2CPARAMS, *i2cctl);
+ E1000_WRITE_FLUSH(hw);
+
+ /* SCL fall time (300ns) */
+ usec_delay(E1000_I2C_T_FALL);
+}
+
+/**
+ * e1000_set_i2c_data - Sets the I2C data bit
+ * @hw: pointer to hardware structure
+ * @i2cctl: Current value of I2CCTL register
+ * @data: I2C data value (0 or 1) to set
+ *
+ * Sets the I2C data bit
+ **/
+STATIC s32 e1000_set_i2c_data(struct e1000_hw *hw, u32 *i2cctl, bool data)
+{
+ s32 status = E1000_SUCCESS;
+
+ DEBUGFUNC("e1000_set_i2c_data");
+
+ if (data)
+ *i2cctl |= E1000_I2C_DATA_OUT;
+ else
+ *i2cctl &= ~E1000_I2C_DATA_OUT;
+
+ *i2cctl &= ~E1000_I2C_DATA_OE_N;
+ *i2cctl |= E1000_I2C_CLK_OE_N;
+ E1000_WRITE_REG(hw, E1000_I2CPARAMS, *i2cctl);
+ E1000_WRITE_FLUSH(hw);
+
+ /* Data rise/fall (1000ns/300ns) and set-up time (250ns) */
+ usec_delay(E1000_I2C_T_RISE + E1000_I2C_T_FALL + E1000_I2C_T_SU_DATA);
+
+ *i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
+ if (data != e1000_get_i2c_data(i2cctl)) {
+ status = E1000_ERR_I2C;
+ DEBUGOUT1("Error - I2C data was not set to %X.\n", data);
+ }
+
+ return status;
+}
+
+/**
+ * e1000_get_i2c_data - Reads the I2C SDA data bit
+ * @hw: pointer to hardware structure
+ * @i2cctl: Current value of I2CCTL register
+ *
+ * Returns the I2C data bit value
+ **/
+STATIC bool e1000_get_i2c_data(u32 *i2cctl)
+{
+ bool data;
+
+ DEBUGFUNC("e1000_get_i2c_data");
+
+ if (*i2cctl & E1000_I2C_DATA_IN)
+ data = 1;
+ else
+ data = 0;
+
+ return data;
+}
+
+/**
+ * e1000_i2c_bus_clear - Clears the I2C bus
+ * @hw: pointer to hardware structure
+ *
+ * Clears the I2C bus by sending nine clock pulses.
+ * Used when data line is stuck low.
+ **/
+void e1000_i2c_bus_clear(struct e1000_hw *hw)
+{
+ u32 i2cctl = E1000_READ_REG(hw, E1000_I2CPARAMS);
+ u32 i;
+
+ DEBUGFUNC("e1000_i2c_bus_clear");
+
+ e1000_i2c_start(hw);
+
+ e1000_set_i2c_data(hw, &i2cctl, 1);
+
+ for (i = 0; i < 9; i++) {
+ e1000_raise_i2c_clk(hw, &i2cctl);
+
+ /* Min high period of clock is 4us */
+ usec_delay(E1000_I2C_T_HIGH);
+
+ e1000_lower_i2c_clk(hw, &i2cctl);
+
+ /* Min low period of clock is 4.7us*/
+ usec_delay(E1000_I2C_T_LOW);
+ }
+
+ e1000_i2c_start(hw);
+
+ /* Put the i2c bus back to default state */
+ e1000_i2c_stop(hw);
+}
+
git.droids-corp.org / dpdk.git / blobdiff