* Ethernet Connection I217-V
* Ethernet Connection I218-V
* Ethernet Connection I218-LM
-#ifdef NAHUM6_LPTH_I218_HW
- * Ethernet Connection (2) I218-LM
- * Ethernet Connection (2) I218-V
-#endif
-#ifdef NAHUM6_WPT_HW
- * Ethernet Connection (3) I218-LM
- * Ethernet Connection (3) I218-V
-#endif
*/
#include "e1000_api.h"
-#if defined(NAHUM6LP_HW) && defined(ULP_IN_D0_SUPPORT)
static s32 e1000_oem_bits_config_ich8lan(struct e1000_hw *hw, bool d0_state);
-#endif /* NAHUM6LP_HW && ULP_SUPPORT */
STATIC s32 e1000_acquire_swflag_ich8lan(struct e1000_hw *hw);
STATIC void e1000_release_swflag_ich8lan(struct e1000_hw *hw);
STATIC s32 e1000_acquire_nvm_ich8lan(struct e1000_hw *hw);
return ret_val;
}
-#ifdef C10_SUPPORT
-/**
- * e1000_demote_ltr - Demote/Promote the LTR value
- * @hw: pointer to the HW structure
- * @demote: boolean value to control whether we are demoting or promoting
- * the LTR value (promoting allows deeper C-States).
- * @link: boolean value stating whether we currently have link
- *
- * Configure the LTRV register with the proper LTR value
- **/
-void e1000_demote_ltr(struct e1000_hw *hw, bool demote, bool link)
-{
- u32 reg = link << (E1000_LTRV_REQ_SHIFT + E1000_LTRV_NOSNOOP_SHIFT) |
- link << E1000_LTRV_REQ_SHIFT | E1000_LTRV_SEND;
-
- if ((hw->device_id != E1000_DEV_ID_PCH_I218_LM3) &&
- (hw->device_id != E1000_DEV_ID_PCH_I218_V3))
- return;
-
- if (demote) {
- reg |= hw->dev_spec.ich8lan.lat_enc |
- (hw->dev_spec.ich8lan.lat_enc <<
- E1000_LTRV_NOSNOOP_SHIFT);
- } else {
- reg |= hw->dev_spec.ich8lan.max_ltr_enc |
- (hw->dev_spec.ich8lan.max_ltr_enc <<
- E1000_LTRV_NOSNOOP_SHIFT);
- }
-
- E1000_WRITE_REG(hw, E1000_LTRV, reg);
- return;
-}
-
-#endif /* C10_SUPPORT */
#if defined(NAHUM6LP_HW) && defined(ULP_SUPPORT)
/**
* e1000_enable_ulp_lpt_lp - configure Ultra Low Power mode for LynxPoint-LP
if ((hw->mac.type < e1000_pch_lpt) ||
(hw->device_id == E1000_DEV_ID_PCH_LPT_I217_LM) ||
(hw->device_id == E1000_DEV_ID_PCH_LPT_I217_V) ||
-#ifdef NAHUM6_LPTH_I218_HW
- (hw->device_id == E1000_DEV_ID_PCH_I218_LM2) ||
- (hw->device_id == E1000_DEV_ID_PCH_I218_V2) ||
-#endif
(hw->dev_spec.ich8lan.ulp_state == e1000_ulp_state_on))
return 0;
-#ifdef ULP_IN_D0_SUPPORT
if (!to_sx) {
int i = 0;
i * 50);
}
-#endif /* ULP_IN_D0_SUPPORT */
if (E1000_READ_REG(hw, E1000_FWSM) & E1000_ICH_FWSM_FW_VALID) {
/* Request ME configure ULP mode in the PHY */
mac_reg = E1000_READ_REG(hw, E1000_H2ME);
goto out;
}
-#ifndef ULP_IN_D0_SUPPORT
- if (!to_sx) {
- int i = 0;
-
- /* Poll up to 5 seconds for Cable Disconnected indication */
- while (!(E1000_READ_REG(hw, E1000_FEXT) &
- E1000_FEXT_PHY_CABLE_DISCONNECTED)) {
- /* Bail if link is re-acquired */
- if (E1000_READ_REG(hw, E1000_STATUS) & E1000_STATUS_LU)
- return -E1000_ERR_PHY;
-
- if (i++ == 100)
- break;
-
- msec_delay(50);
- }
- DEBUGOUT("CABLE_DISCONNECTED %s set after %dmsec\n",
- (E1000_READ_REG(hw, E1000_FEXT) &
- E1000_FEXT_PHY_CABLE_DISCONNECTED) ? "" : "not",
- i * 50);
- }
-
-#endif /* !ULP_IN_D0_SUPPORT */
ret_val = hw->phy.ops.acquire(hw);
if (ret_val)
goto out;
+ /* During S0 Idle keep the phy in PCI-E mode */
+ if (hw->dev_spec.ich8lan.smbus_disable)
+ goto skip_smbus;
+
/* Force SMBus mode in PHY */
ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, &phy_reg);
if (ret_val)
mac_reg |= E1000_CTRL_EXT_FORCE_SMBUS;
E1000_WRITE_REG(hw, E1000_CTRL_EXT, mac_reg);
-#ifdef ULP_IN_D0_SUPPORT
+skip_smbus:
if (!to_sx) {
/* Change the 'Link Status Change' interrupt to trigger
* on 'Cable Status Change'
phy_reg);
}
-#endif /* ULP_IN_D0_SUPPORT */
/* Set Inband ULP Exit, Reset to SMBus mode and
* Disable SMBus Release on PERST# in PHY
*/
/* Commit ULP changes in PHY by starting auto ULP configuration */
phy_reg |= I218_ULP_CONFIG1_START;
e1000_write_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, phy_reg);
-#ifdef ULP_IN_D0_SUPPORT
if (!to_sx) {
/* Disable Tx so that the MAC doesn't send any (buffered)
mac_reg &= ~E1000_TCTL_EN;
E1000_WRITE_REG(hw, E1000_TCTL, mac_reg);
}
-#endif
release:
hw->phy.ops.release(hw);
out:
* to disable ULP mode (force=false); otherwise, for example when unloading
* the driver or during Sx->S0 transitions, this is called with force=true
* to forcibly disable ULP.
-#ifdef ULP_IN_D0_SUPPORT
* When the cable is plugged in while the device is in D0, a Cable Status
* Change interrupt is generated which causes this function to be called
* to partially disable ULP mode and restart autonegotiation. This function
* is then called again due to the resulting Link Status Change interrupt
* to finish cleaning up after the ULP flow.
-#endif
*/
s32 e1000_disable_ulp_lpt_lp(struct e1000_hw *hw, bool force)
{
if ((hw->mac.type < e1000_pch_lpt) ||
(hw->device_id == E1000_DEV_ID_PCH_LPT_I217_LM) ||
(hw->device_id == E1000_DEV_ID_PCH_LPT_I217_V) ||
-#ifdef NAHUM6_LPTH_I218_HW
- (hw->device_id == E1000_DEV_ID_PCH_I218_LM2) ||
- (hw->device_id == E1000_DEV_ID_PCH_I218_V2) ||
-#endif
(hw->dev_spec.ich8lan.ulp_state == e1000_ulp_state_off))
return 0;
mac_reg = E1000_READ_REG(hw, E1000_H2ME);
mac_reg &= ~E1000_H2ME_ULP;
E1000_WRITE_REG(hw, E1000_H2ME, mac_reg);
-#ifdef ULP_IN_D0_SUPPORT
/* Restore link speed advertisements and restart
* Auto-negotiation
goto out;
ret_val = e1000_oem_bits_config_ich8lan(hw, true);
-#endif
}
goto out;
}
- if (force)
- /* Toggle LANPHYPC Value bit */
- e1000_toggle_lanphypc_pch_lpt(hw);
-
ret_val = hw->phy.ops.acquire(hw);
if (ret_val)
goto out;
-#ifdef ULP_IN_D0_SUPPORT
/* Revert the change to the 'Link Status Change'
* interrupt to trigger on 'Cable Status Change'
*/
phy_reg &= ~E1000_KMRNCTRLSTA_OP_MODES_LSC2CSC;
e1000_write_kmrn_reg_locked(hw, E1000_KMRNCTRLSTA_OP_MODES, phy_reg);
-#endif
+ if (force)
+ /* Toggle LANPHYPC Value bit */
+ e1000_toggle_lanphypc_pch_lpt(hw);
+
/* Unforce SMBus mode in PHY */
ret_val = e1000_read_phy_reg_hv_locked(hw, CV_SMB_CTRL, &phy_reg);
if (ret_val) {
ret_val = e1000_read_phy_reg_hv_locked(hw, I218_ULP_CONFIG1, &phy_reg);
if (ret_val)
goto release;
-#ifdef ULP_IN_D0_SUPPORT
/* CSC interrupt received due to ULP Indication */
if ((phy_reg & I218_ULP_CONFIG1_IND) || force) {
-#endif
phy_reg &= ~(I218_ULP_CONFIG1_IND |
I218_ULP_CONFIG1_STICKY_ULP |
I218_ULP_CONFIG1_RESET_TO_SMBUS |
mac_reg &= ~E1000_FEXTNVM7_DISABLE_SMB_PERST;
E1000_WRITE_REG(hw, E1000_FEXTNVM7, mac_reg);
-#ifdef ULP_IN_D0_SUPPORT
if (!force) {
hw->phy.ops.release(hw);
mac_reg |= E1000_TCTL_EN;
E1000_WRITE_REG(hw, E1000_TCTL, mac_reg);
-#endif
release:
hw->phy.ops.release(hw);
if (force) {
{
struct e1000_mac_info *mac = &hw->mac;
s32 ret_val;
-#if defined(NAHUM6LP_HW) && defined(ULP_IN_D0_SUPPORT)
bool link = false;
-#else
- bool link;
-#endif
u16 phy_reg;
DEBUGFUNC("e1000_check_for_copper_link_ich8lan");
if (!mac->get_link_status)
return E1000_SUCCESS;
-#if defined(NAHUM6LP_HW) && defined(ULP_IN_D0_SUPPORT)
if ((hw->mac.type < e1000_pch_lpt) ||
(hw->device_id == E1000_DEV_ID_PCH_LPT_I217_LM) ||
(hw->device_id == E1000_DEV_ID_PCH_LPT_I217_V)) {
-#endif /* NAHUM6LP_HW && ULP_IN_D0_SUPPORT */
/* First we want to see if the MII Status Register reports
* link. If so, then we want to get the current speed/duplex
* of the PHY.
ret_val = e1000_phy_has_link_generic(hw, 1, 0, &link);
if (ret_val)
return ret_val;
-#if defined(NAHUM6LP_HW) && defined(ULP_IN_D0_SUPPORT)
} else {
/* Check the MAC's STATUS register to determine link state
* since the PHY could be inaccessible while in ULP mode.
if (ret_val)
return ret_val;
}
-#endif /* NAHUM6LP_HW && ULP_IN_D0_SUPPORT */
if (hw->mac.type == e1000_pchlan) {
ret_val = e1000_k1_gig_workaround_hv(hw, link);
}
}
-#if defined(NAHUM6LP_HW) && defined(NAHUM6_WPT_HW)
- /* Work-around I218 hang issue */
- if ((hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
- (hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_V) ||
- (hw->device_id == E1000_DEV_ID_PCH_I218_LM3) ||
- (hw->device_id == E1000_DEV_ID_PCH_I218_V3)) {
- ret_val = e1000_k1_workaround_lpt_lp(hw, link);
- if (ret_val)
- return ret_val;
- }
-#else
/* Work-around I218 hang issue */
if ((hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
(hw->device_id == E1000_DEV_ID_PCH_LPTLP_I218_V)) {
return ret_val;
}
-#endif /* defined(NAHUM6LP_HW) && defined(NAHUM6_WPT_HW) */
/* Clear link partner's EEE ability */
hw->dev_spec.ich8lan.eee_lp_ability = 0;
if (hw->phy.type == e1000_phy_i217) {
u16 phy_reg, device_id = hw->device_id;
-#ifdef NAHUM6_WPT_HW
- if ((device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
- (device_id == E1000_DEV_ID_PCH_LPTLP_I218_V) ||
- (device_id == E1000_DEV_ID_PCH_I218_LM3) ||
- (device_id == E1000_DEV_ID_PCH_I218_V3)) {
- u32 fextnvm6 = E1000_READ_REG(hw, E1000_FEXTNVM6);
-
- E1000_WRITE_REG(hw, E1000_FEXTNVM6,
- fextnvm6 & ~E1000_FEXTNVM6_REQ_PLL_CLK);
- }
-#else
if ((device_id == E1000_DEV_ID_PCH_LPTLP_I218_LM) ||
(device_id == E1000_DEV_ID_PCH_LPTLP_I218_V)) {
u32 fextnvm6 = E1000_READ_REG(hw, E1000_FEXTNVM6);
E1000_WRITE_REG(hw, E1000_FEXTNVM6,
fextnvm6 & ~E1000_FEXTNVM6_REQ_PLL_CLK);
}
-#endif
ret_val = hw->phy.ops.acquire(hw);
if (ret_val)
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