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All rights reserved.
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/*$FreeBSD: src/sys/dev/em/e1000_82540.c,v 1.3 2007/05/16 00:14:23 jfv Exp $*/
/* e1000_82540
* e1000_82545
* e1000_82546
* e1000_82545_rev_3
* e1000_82546_rev_3
*/
#include "e1000_api.h"
void e1000_init_function_pointers_82540(struct e1000_hw *hw);
STATIC s32 e1000_init_phy_params_82540(struct e1000_hw *hw);
STATIC s32 e1000_init_nvm_params_82540(struct e1000_hw *hw);
STATIC s32 e1000_init_mac_params_82540(struct e1000_hw *hw);
static s32 e1000_adjust_serdes_amplitude_82540(struct e1000_hw *hw);
STATIC void e1000_clear_hw_cntrs_82540(struct e1000_hw *hw);
STATIC s32 e1000_init_hw_82540(struct e1000_hw *hw);
STATIC s32 e1000_reset_hw_82540(struct e1000_hw *hw);
static s32 e1000_set_phy_mode_82540(struct e1000_hw *hw);
static s32 e1000_set_vco_speed_82540(struct e1000_hw *hw);
STATIC s32 e1000_setup_copper_link_82540(struct e1000_hw *hw);
STATIC s32 e1000_setup_fiber_serdes_link_82540(struct e1000_hw *hw);
/**
* e1000_init_phy_params_82540 - Init 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_82540(struct e1000_hw *hw)
{
struct e1000_phy_info *phy = &hw->phy;
struct e1000_functions *func = &hw->func;
s32 ret_val = E1000_SUCCESS;
phy->addr = 1;
phy->autoneg_mask = AUTONEG_ADVERTISE_SPEED_DEFAULT;
phy->reset_delay_us = 10000;
phy->type = e1000_phy_m88;
/* Function Pointers */
func->check_polarity = e1000_check_polarity_m88;
func->commit_phy = e1000_phy_sw_reset_generic;
func->force_speed_duplex = e1000_phy_force_speed_duplex_m88;
func->get_cable_length = e1000_get_cable_length_m88;
func->get_cfg_done = e1000_get_cfg_done_generic;
func->read_phy_reg = e1000_read_phy_reg_m88;
func->reset_phy = e1000_phy_hw_reset_generic;
func->write_phy_reg = e1000_write_phy_reg_m88;
func->get_phy_info = e1000_get_phy_info_m88;
ret_val = e1000_get_phy_id(hw);
if (ret_val)
goto out;
/* Verify phy id */
switch (hw->mac.type) {
case e1000_82540:
case e1000_82545:
case e1000_82545_rev_3:
case e1000_82546:
case e1000_82546_rev_3:
if (phy->id == M88E1011_I_PHY_ID)
break;
/* Fall Through */
default:
ret_val = -E1000_ERR_PHY;
goto out;
break;
}
out:
return ret_val;
}
/**
* e1000_init_nvm_params_82540 - Init 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_82540(struct e1000_hw *hw)
{
struct e1000_nvm_info *nvm = &hw->nvm;
struct e1000_functions *func = &hw->func;
u32 eecd = E1000_READ_REG(hw, E1000_EECD);
DEBUGFUNC("e1000_init_nvm_params_82540");
nvm->type = e1000_nvm_eeprom_microwire;
nvm->delay_usec = 50;
nvm->opcode_bits = 3;
switch (nvm->override) {
case e1000_nvm_override_microwire_large:
nvm->address_bits = 8;
nvm->word_size = 256;
break;
case e1000_nvm_override_microwire_small:
nvm->address_bits = 6;
nvm->word_size = 64;
break;
default:
nvm->address_bits = eecd & E1000_EECD_SIZE ? 8 : 6;
nvm->word_size = eecd & E1000_EECD_SIZE ? 256 : 64;
break;
}
/* Function Pointers */
func->acquire_nvm = e1000_acquire_nvm_generic;
func->read_nvm = e1000_read_nvm_microwire;
func->release_nvm = e1000_release_nvm_generic;
func->update_nvm = e1000_update_nvm_checksum_generic;
func->valid_led_default = e1000_valid_led_default_generic;
func->validate_nvm = e1000_validate_nvm_checksum_generic;
func->write_nvm = e1000_write_nvm_microwire;
return E1000_SUCCESS;
}
/**
* e1000_init_mac_params_82540 - Init 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_82540(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
struct e1000_functions *func = &hw->func;
s32 ret_val = E1000_SUCCESS;
DEBUGFUNC("e1000_init_mac_params_82540");
/* Set media type */
switch (hw->device_id) {
case E1000_DEV_ID_82545EM_FIBER:
case E1000_DEV_ID_82545GM_FIBER:
case E1000_DEV_ID_82546EB_FIBER:
case E1000_DEV_ID_82546GB_FIBER:
hw->media_type = e1000_media_type_fiber;
break;
case E1000_DEV_ID_82545GM_SERDES:
case E1000_DEV_ID_82546GB_SERDES:
hw->media_type = e1000_media_type_internal_serdes;
break;
default:
hw->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;
/* Function pointers */
/* bus type/speed/width */
func->get_bus_info = e1000_get_bus_info_pci_generic;
/* reset */
func->reset_hw = e1000_reset_hw_82540;
/* hw initialization */
func->init_hw = e1000_init_hw_82540;
/* link setup */
func->setup_link = e1000_setup_link_generic;
/* physical interface setup */
func->setup_physical_interface =
(hw->media_type == e1000_media_type_copper)
? e1000_setup_copper_link_82540
: e1000_setup_fiber_serdes_link_82540;
/* check for link */
switch (hw->media_type) {
case e1000_media_type_copper:
func->check_for_link = e1000_check_for_copper_link_generic;
break;
case e1000_media_type_fiber:
func->check_for_link = e1000_check_for_fiber_link_generic;
break;
case e1000_media_type_internal_serdes:
func->check_for_link = e1000_check_for_serdes_link_generic;
break;
default:
ret_val = -E1000_ERR_CONFIG;
goto out;
break;
}
/* link info */
func->get_link_up_info =
(hw->media_type == e1000_media_type_copper)
? e1000_get_speed_and_duplex_copper_generic
: e1000_get_speed_and_duplex_fiber_serdes_generic;
/* multicast address update */
func->mc_addr_list_update = e1000_mc_addr_list_update_generic;
/* writing VFTA */
func->write_vfta = e1000_write_vfta_generic;
/* clearing VFTA */
func->clear_vfta = e1000_clear_vfta_generic;
/* setting MTA */
func->mta_set = e1000_mta_set_generic;
/* setup LED */
func->setup_led = e1000_setup_led_generic;
/* cleanup LED */
func->cleanup_led = e1000_cleanup_led_generic;
/* turn on/off LED */
func->led_on = e1000_led_on_generic;
func->led_off = e1000_led_off_generic;
/* clear hardware counters */
func->clear_hw_cntrs = e1000_clear_hw_cntrs_82540;
out:
return ret_val;
}
/**
* e1000_init_function_pointers_82540 - Init func ptrs.
* @hw: pointer to the HW structure
*
* The only function explicitly called by the api module to initialize
* all function pointers and parameters.
**/
void
e1000_init_function_pointers_82540(struct e1000_hw *hw)
{
DEBUGFUNC("e1000_init_function_pointers_82540");
hw->func.init_mac_params = e1000_init_mac_params_82540;
hw->func.init_nvm_params = e1000_init_nvm_params_82540;
hw->func.init_phy_params = e1000_init_phy_params_82540;
}
/**
* e1000_reset_hw_82540 - Reset hardware
* @hw: pointer to the HW structure
*
* This resets the hardware into a known state. This is a
* function pointer entry point called by the api module.
**/
STATIC s32
e1000_reset_hw_82540(struct e1000_hw *hw)
{
u32 ctrl, icr, manc;
s32 ret_val = E1000_SUCCESS;
DEBUGFUNC("e1000_reset_hw_82540");
DEBUGOUT("Masking off all interrupts\n");
E1000_WRITE_REG(hw, E1000_IMC, 0xFFFFFFFF);
E1000_WRITE_REG(hw, E1000_RCTL, 0);
E1000_WRITE_REG(hw, E1000_TCTL, E1000_TCTL_PSP);
E1000_WRITE_FLUSH(hw);
/* Delay to allow any outstanding PCI transactions to complete
* before resetting the device.
*/
msec_delay(10);
ctrl = E1000_READ_REG(hw, E1000_CTRL);
DEBUGOUT("Issuing a global reset to 82540/82545/82546 MAC\n");
switch (hw->mac.type) {
case e1000_82545_rev_3:
case e1000_82546_rev_3:
E1000_WRITE_REG(hw, E1000_CTRL_DUP, ctrl | E1000_CTRL_RST);
break;
default:
/* These controllers can't ack the 64-bit write when
* issuing the reset, so we use IO-mapping as a
* workaround to issue the reset.
*/
E1000_WRITE_REG_IO(hw, E1000_CTRL, ctrl | E1000_CTRL_RST);
break;
}
/* Wait for EEPROM reload */
msec_delay(5);
/* Disable HW ARPs on ASF enabled adapters */
manc = E1000_READ_REG(hw, E1000_MANC);
manc &= ~E1000_MANC_ARP_EN;
E1000_WRITE_REG(hw, E1000_MANC, manc);
E1000_WRITE_REG(hw, E1000_IMC, 0xffffffff);
icr = E1000_READ_REG(hw, E1000_ICR);
return ret_val;
}
/**
* e1000_init_hw_82540 - Initialize hardware
* @hw: pointer to the HW structure
*
* This inits the hardware readying it for operation. This is a
* function pointer entry point called by the api module.
**/
STATIC s32
e1000_init_hw_82540(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
u32 txdctl, ctrl_ext;
s32 ret_val = E1000_SUCCESS;
u16 i;
DEBUGFUNC("e1000_init_hw_82540");
/* Initialize identification LED */
ret_val = e1000_id_led_init_generic(hw);
if (ret_val) {
DEBUGOUT("Error initializing identification LED\n");
goto out;
}
/* Disabling VLAN filtering */
DEBUGOUT("Initializing the IEEE VLAN\n");
if (mac->type < e1000_82545_rev_3) {
E1000_WRITE_REG(hw, E1000_VET, 0);
}
e1000_clear_vfta(hw);
/* Setup the receive address. */
e1000_init_rx_addrs_generic(hw, mac->rar_entry_count);
/* Zero out the Multicast HASH table */
DEBUGOUT("Zeroing the MTA\n");
for (i = 0; i < mac->mta_reg_count; i++) {
E1000_WRITE_REG_ARRAY(hw, E1000_MTA, i, 0);
/* Avoid back to back register writes by adding the register
* read (flush). This is to protect against some strange
* bridge configurations that may issue Memory Write Block
* (MWB) to our register space. The *_rev_3 hardware at
* least doesn't respond correctly to every other dword in an
* MWB to our register space.
*/
E1000_WRITE_FLUSH(hw);
}
if (mac->type < e1000_82545_rev_3)
e1000_pcix_mmrbc_workaround_generic(hw);
/* Setup link and flow control */
ret_val = e1000_setup_link(hw);
txdctl = E1000_READ_REG(hw, E1000_TXDCTL);
txdctl = (txdctl & ~E1000_TXDCTL_WTHRESH) |
E1000_TXDCTL_FULL_TX_DESC_WB;
E1000_WRITE_REG(hw, E1000_TXDCTL, txdctl);
/* 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_82540(hw);
if ((hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER) ||
(hw->device_id == E1000_DEV_ID_82546GB_QUAD_COPPER_KSP3)) {
ctrl_ext = E1000_READ_REG(hw, E1000_CTRL_EXT);
/* Relaxed ordering must be disabled to avoid a parity
* error crash in a PCI slot. */
ctrl_ext |= E1000_CTRL_EXT_RO_DIS;
E1000_WRITE_REG(hw, E1000_CTRL_EXT, ctrl_ext);
}
out:
return ret_val;
}
/**
* e1000_setup_copper_link_82540 - Configure copper link settings
* @hw: pointer to the HW structure
*
* Calls the appropriate function to configure the link for auto-neg or forced
* speed and duplex. Then we check for link, once link is established calls
* to configure collision distance and flow control are called. If link is
* not established, we return -E1000_ERR_PHY (-2). This is a function
* pointer entry point called by the api module.
**/
STATIC s32
e1000_setup_copper_link_82540(struct e1000_hw *hw)
{
u32 ctrl;
s32 ret_val = E1000_SUCCESS;
u16 data;
DEBUGFUNC("e1000_setup_copper_link_82540");
ctrl = E1000_READ_REG(hw, E1000_CTRL);
ctrl |= E1000_CTRL_SLU;
ctrl &= ~(E1000_CTRL_FRCSPD | E1000_CTRL_FRCDPX);
E1000_WRITE_REG(hw, E1000_CTRL, ctrl);
ret_val = e1000_set_phy_mode_82540(hw);
if (ret_val)
goto out;
if (hw->mac.type == e1000_82545_rev_3 ||
hw->mac.type == e1000_82546_rev_3) {
ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, &data);
if (ret_val)
goto out;
data |= 0x00000008;
ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_SPEC_CTRL, data);
if (ret_val)
goto out;
}
ret_val = e1000_copper_link_setup_m88(hw);
if (ret_val)
goto out;
ret_val = e1000_setup_copper_link_generic(hw);
out:
return ret_val;
}
/**
* e1000_setup_fiber_serdes_link_82540 - Setup link for fiber/serdes
* @hw: pointer to the HW structure
*
* Set the output amplitude to the value in the EEPROM and adjust the VCO
* speed to improve Bit Error Rate (BER) performance. Configures collision
* distance and flow control for fiber and serdes links. Upon successful
* setup, poll for link. This is a function pointer entry point called by
* the api module.
**/
STATIC s32
e1000_setup_fiber_serdes_link_82540(struct e1000_hw *hw)
{
struct e1000_mac_info *mac = &hw->mac;
s32 ret_val = E1000_SUCCESS;
DEBUGFUNC("e1000_setup_fiber_serdes_link_82540");
switch (mac->type) {
case e1000_82545_rev_3:
case e1000_82546_rev_3:
if (hw->media_type == e1000_media_type_internal_serdes) {
/* If we're on serdes media, adjust the output
* amplitude to value set in the EEPROM.
*/
ret_val = e1000_adjust_serdes_amplitude_82540(hw);
if (ret_val)
goto out;
}
/* Adjust VCO speed to improve BER performance */
ret_val = e1000_set_vco_speed_82540(hw);
if (ret_val)
goto out;
default:
break;
}
ret_val = e1000_setup_fiber_serdes_link_generic(hw);
out:
return ret_val;
}
/**
* e1000_adjust_serdes_amplitude_82540 - Adjust amplitude based on EEPROM
* @hw: pointer to the HW structure
*
* Adjust the SERDES ouput amplitude based on the EEPROM settings.
**/
static s32
e1000_adjust_serdes_amplitude_82540(struct e1000_hw *hw)
{
s32 ret_val = E1000_SUCCESS;
u16 nvm_data;
DEBUGFUNC("e1000_adjust_serdes_amplitude_82540");
ret_val = e1000_read_nvm(hw, NVM_SERDES_AMPLITUDE, 1, &nvm_data);
if (ret_val) {
goto out;
}
if (nvm_data != NVM_RESERVED_WORD) {
/* Adjust serdes output amplitude only. */
nvm_data &= NVM_SERDES_AMPLITUDE_MASK;
ret_val = e1000_write_phy_reg(hw,
M88E1000_PHY_EXT_CTRL,
nvm_data);
if (ret_val)
goto out;
}
out:
return ret_val;
}
/**
* e1000_set_vco_speed_82540 - Set VCO speed for better performance
* @hw: pointer to the HW structure
*
* Set the VCO speed to improve Bit Error Rate (BER) performance.
**/
static s32
e1000_set_vco_speed_82540(struct e1000_hw *hw)
{
s32 ret_val = E1000_SUCCESS;
u16 default_page = 0;
u16 phy_data;
DEBUGFUNC("e1000_set_vco_speed_82540");
/* Set PHY register 30, page 5, bit 8 to 0 */
ret_val = e1000_read_phy_reg(hw,
M88E1000_PHY_PAGE_SELECT,
&default_page);
if (ret_val)
goto out;
ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0005);
if (ret_val)
goto out;
ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data);
if (ret_val)
goto out;
phy_data &= ~M88E1000_PHY_VCO_REG_BIT8;
ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data);
if (ret_val)
goto out;
/* Set PHY register 30, page 4, bit 11 to 1 */
ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT, 0x0004);
if (ret_val)
goto out;
ret_val = e1000_read_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, &phy_data);
if (ret_val)
goto out;
phy_data |= M88E1000_PHY_VCO_REG_BIT11;
ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_GEN_CONTROL, phy_data);
if (ret_val)
goto out;
ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT,
default_page);
out:
return ret_val;
}
/**
* e1000_set_phy_mode_82540 - Set PHY to class A mode
* @hw: pointer to the HW structure
*
* Sets the PHY to class A mode and assumes the following operations will
* follow to enable the new class mode:
* 1. Do a PHY soft reset.
* 2. Restart auto-negotiation or force link.
**/
static s32
e1000_set_phy_mode_82540(struct e1000_hw *hw)
{
struct e1000_phy_info *phy = &hw->phy;
s32 ret_val = E1000_SUCCESS;
u16 nvm_data;
DEBUGFUNC("e1000_set_phy_mode_82540");
if (hw->mac.type != e1000_82545_rev_3)
goto out;
ret_val = e1000_read_nvm(hw, NVM_PHY_CLASS_WORD, 1, &nvm_data);
if (ret_val) {
ret_val = -E1000_ERR_PHY;
goto out;
}
if ((nvm_data != NVM_RESERVED_WORD) && (nvm_data & NVM_PHY_CLASS_A)) {
ret_val = e1000_write_phy_reg(hw, M88E1000_PHY_PAGE_SELECT,
0x000B);
if (ret_val) {
ret_val = -E1000_ERR_PHY;
goto out;
}
ret_val = e1000_write_phy_reg(hw,
M88E1000_PHY_GEN_CONTROL,
0x8104);
if (ret_val) {
ret_val = -E1000_ERR_PHY;
goto out;
}
phy->reset_disable = FALSE;
}
out:
return ret_val;
}
/**
* e1000_clear_hw_cntrs_82540 - 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_82540(struct e1000_hw *hw)
{
volatile u32 temp;
DEBUGFUNC("e1000_clear_hw_cntrs_82540");
e1000_clear_hw_cntrs_base_generic(hw);
temp = E1000_READ_REG(hw, E1000_PRC64);
temp = E1000_READ_REG(hw, E1000_PRC127);
temp = E1000_READ_REG(hw, E1000_PRC255);
temp = E1000_READ_REG(hw, E1000_PRC511);
temp = E1000_READ_REG(hw, E1000_PRC1023);
temp = E1000_READ_REG(hw, E1000_PRC1522);
temp = E1000_READ_REG(hw, E1000_PTC64);
temp = E1000_READ_REG(hw, E1000_PTC127);
temp = E1000_READ_REG(hw, E1000_PTC255);
temp = E1000_READ_REG(hw, E1000_PTC511);
temp = E1000_READ_REG(hw, E1000_PTC1023);
temp = E1000_READ_REG(hw, E1000_PTC1522);
temp = E1000_READ_REG(hw, E1000_ALGNERRC);
temp = E1000_READ_REG(hw, E1000_RXERRC);
temp = E1000_READ_REG(hw, E1000_TNCRS);
temp = E1000_READ_REG(hw, E1000_CEXTERR);
temp = E1000_READ_REG(hw, E1000_TSCTC);
temp = E1000_READ_REG(hw, E1000_TSCTFC);
temp = E1000_READ_REG(hw, E1000_MGTPRC);
temp = E1000_READ_REG(hw, E1000_MGTPDC);
temp = E1000_READ_REG(hw, E1000_MGTPTC);
}
