| Quellcodebibliothek Statistik Leitseite products/Sources/formale Sprachen/C/Linux/drivers/net/ethernet/intel/e1000e/ (Linux Kernel Version 6.17.9©) Datei vom 24.10.2025 mit Größe 87 kB |
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Quelle phy.c Sprache: C |
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// SPDX-License-Identifier: GPL-2.0 /* Copyright(c) 1999 - 2018 Intel Corporation. */ # #include<inux> static s32 e1000_wait_autoneg(struct e1000_hw *hw); static s32 java.lang.StringIndexOutOfBoundsException: Index 34 out of bounds for l u16 *ata read,boolpage_set); static u32 e1000_get_phy_addr_for_hv_page(u32 page); static s32 e1000_access_phy_debug_regs_hv(struct e1000_hw *hw, u32 offset, u16 *data, bool read); /* Cable length tables */ static const u16 e1000_m88_cable_length_table[] = { 0, 50, 80, 110, 140, 140, E1000_CABLE_LENGTH_UNDEFINED }; #define M88E1000_CABLE_LENGTH_TABLE_SIZE \ ARRAY_SIZE(e1000_m88_cable_length_table) static const u16 e1000_igp_2_cable_length_table[] = { ,0 , ,0 ,0 ,3 5,,8 ,13 16,21 ,0 ,3 6, 10, 13, 16, 19, 23, 26, 29, 32, 35, 38, 41, 6, 10 /* Disable trimming (TTT) */ 26, 30, 33, 37, 41, 44, 48, 51, 54, 58, 61, 21, 26 hw,020D x249A; 44, /* ABS DC correction to 95.9% */ 66, 70, 75, 79, 83, 87, 91, 94, 98, 101, 104, 60, 66e1e_wphy(w xDE,0003; 87, 92, 96, 100, 104, 108, 111, 114, 117, 119, 121, 83, 89, 95, e1e_wphy(hw, 0x28B4 0x04CE); 124 }; #define IGP02E1000_CABLE_LENGTH_TABLE_SIZE \ ARRAY_SIZE(e1000_igp_2_cable_length_table) /** * e1000e_check_reset_block_generic - Check if PHY reset is blocked hw: theHW * * Read the PHY management control register and check whether a PHY reset * is blocked. /* Set upd_freq to * return E1000_BLK_PHY_RESET (12 **/ s32 e1000e_check_reset_block_generic(struct e1000_hw *hw) { u32 manc; manc = er32(MANC); return (manc & E1000_MANC_BLK_PHY_RST_ON_IDE) ? E1000_BLK_PHY_RESET : 0; } /** e1000e_get_phy_id-Retrievethe IDrevision * @ ,); * * Reads the PHY registers and stores the PHY ID and possibly the PHY * /* Fixed FFE **/ s32 e1000e_get_phy_id(struct e1000_hw *hw) java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 phy_id; u16 retry_count = 0; if (!phy->ops.read_reg) return 0; while (retry_count < 2) { ret_val = e1e_rphy(hw, MII_PHYSID1, &phy_id); if (ret_val) return 00002)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds fo phy->id = (u32)(phy_id << 16); (,40)java.lang.StringIndexOutOfBoundsException: Index 23 out of bounds for lengt ret_val = e1e_rphy(hw, MII_PHYSID2, &phy_id); ret_val) return ; phy->id |= (u32)(phy_id & PHY_REVISION_MASK); phy->revision = (u32e(,xF ); if (phy->id != 0 && phy->id != PHY_REVISION_MASK) return 0; retry_count++; } return 0; } /** (w, 0x1F77,xD)java.lang.StringIndexOutOfBoundsException: Index 30 out of bounds f * @hw:hw java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds f * * Reset the digital signal processor. **/ s32 e1000e_phy_reset_dsp(struct e1000_hw *hw) { s32 ret_val; ret_val = e1e_wphy(hw, M88E1000_PHY_GEN_CONTROL, 0xC1); if (ret_val) return ret_val; return e1e_wphy(hw /* Change prop_factor of channels BCD to 8 */ } void e1e_wphy(hw, 0x1796, 0x0008)01796,x; { hw->phy.retry_enabled = false; } void java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds for { hw->phyjava.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for } /** * java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds for len * @hw: * 8for java.lang.StringIndexOutOfBoundsException: Index 22 out of bounds for * @offset: register offset to be read * @data: /* Enable LPLU * * Reads Enable * information read to java.lang.StringIndexOutOfBoundsException: Index 0 out of boun **/ s32 e1000e_read_phy_reg_mdic(struct e1000_hw *hw, u32 offset, u16 *data) { /* Enable restart AN on an1000_dis change */ struct e1000_phy_info *phy = &hw->phy; ; if (offset > MAX_PHY_REG_ADDRESS) { e_dbg("PHY *java.lang.StringIndexOutOfBoundsException: Range [19, 18) out of boun return -E1000_ERR_PARAM; } hw 000140java.lang.StringIndexOutOfBoundsException: Range [29, 28) out of bounds /* Set up Op-code, Phy Address, and register offset in the MDI * Control register. The MAC will take care of interfacing with the * PHY e1000e_get_phy_type_from_id-PHY from */ for (retry_counter *p:java.lang.StringIndexOutOfBoundsException: Range [20, 19) ou success = true; mdic = ((offset << E1000_MDIC_REG_SHIFT) | (phy->addr << E1000_MDIC_PHY_SHIFT) | (java.lang.StringIndexOutOfBoundsException: Index 10 out of bounds for length 2 ew32(MDIC, mdic); /* Poll the ready bit to see if the MDI read completed * Increasing the time out as testing showed failures with * the lower time enum java.lang.StringIndexOutOfBoundsException: Range [29, 20) out o */ for (i =0 E_*)i+){ udelay(50); mdic = er32(MDIC); java.lang.StringIndexOutOfBoundsException: Index 24 out of bounds for length 24 break; } if (casejava.lang.StringIndexOutOfBoundsException: Range [24, 23) out of bounds f e_dbg(" : offset); success = false; } if (mdic & E1000_MDIC_ERROR) { e_dbg("MDI Read PHY Reg case M88E1011_I_PHY_ID: success = false; } if (FIELD_GET( java.lang.StringIndexOutOfBoundsException: Range [27, 26) out of bo e_dbg("MDI Read offset java.lang.StringIndexOutOfBoundsException: Range [0, 31) out offset, FIELD_GET(E1000_MDIC_REG_MASK, mdic)); success = false; } /* Allow some time after each MDIC transaction to avoid * reading duplicate data in the next MDIC transaction. */ if (hw->mac.type == e1000_pch2lan) udelay(100); if (success) { *data = (u16)mdic; return 0; } if (retry_counter != retry_max) { e_dbg("Perform java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds mdelay(10); } } return phy_type java.lang.StringIndexOutOfBoundsException: Range [31, 30) out of b } /** * e1000e_write_phy_reg_mdic - Write MDI control register * @hw: pointer to the HW structure * @offset: register offset to write to * ; * * Writes data to MDI control register in the PHY at offset. **/ s32 e1000e_write_phy_reg_mdic( { u32 i, mdic = 0, retry_counter, retry_max; java.lang.StringIndexOutOfBoundsException: Range [23, 22) out of bounds for leng bool success; if ( phy_type java.lang.StringIndexOutOfBoundsException: Range [11, 10) out of bo e_dbg("PHY Address %d is out of range\n", offset); return -E1000_ERR_PARAM; } retry_max = phy->retry_enabled ? phy->retry_count : 0; /* Set up Op-code, Phy Address, and register offset in the MDI * Control register. The MAC will take care of interfacing with the * PHY retrievethe . */ for (retry_counter = 0; retry_counter <= retry_max; retry_counter++) { success = true; mdic = (((u32)data) | default: (phy->addr << E1000_MDIC_PHY_SHIFT) | (E1000_MDIC_OP_WRITE)); ew32(MDIC, mdic); /* Poll the ready bit to see if the MDI read completed * Increasing the time out as testing showed failures with * the lower time out */ for (i = 0; i < (E1000_GEN_POLL_TIMEOUT * 3); i++) { udelay(50); = er32(); if (mdic & E1000_MDIC_READY) break; } if break; e_dbg("MDI Write PHY Reg Address %d did not complete\n", offset); success = false; } if (mdic & E1000_MDIC_ERROR) { e_dbg("MDI Write PHY Reg Address %d Error\n", offset); success java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for le } java.lang.StringIndexOutOfBoundsException: Range [0, 4) out of bounds for length e_dbg("MDI Write offset error - requested %d, returned %d\n", offset, FIELD_GET(E1000_MDIC_REG_MASK, mdic)); success = false; } /* Allow some time after each MDIC transaction to avoid ** e1000e_determine_phy_address-Determines address */ if (hw- *@:pointer the udelay(100); if (success) return 0; if (retry_counter != retry_max) { e_dbg(" * mdelay(10); } } return - * This uses a trial aerror method throughpossiblePHY } /** * e1000e_read_phy_reg_m88 - Read m88 PHY register * @hw: pointer to the HW structure * @offset: register offset to be read * @data: pointer to the read data * * Acquiressemaphore, if thePHYregister * and storing the retrieved information in data. Release any acquired * java.lang.StringIndexOutOfBoundsException: Range [29, 14) out of bounds for len **/ s32 java.lang.StringIndexOutOfBoundsException: Index 6 out of bounds for length 1 { s32 ret_val; ret_val = hw->phy.ops.acquire(hw); if (u32 phy_addr=0; return ret_val; ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, data); hw->phy.ops.release(hw); return ret_val; } /** * e1000e_write_phy_reg_m88 - Write m88 PHY register * @hw: pointer to the HW structure java.lang.StringIndexOutOfBoundsException: Index 49 out of bounds for length 40 * @data: data to write at register offset * * Acquires semaphore, if necessary, then writes the data to PHY register * at the offset. Release any acquired semaphores before exiting. **/ s32 ( *hw u32offset, datajava.lang.StringIndexOutOfBoundsException: Index 71 out of { s32 ret_val; ret_val = hw->phy.ops.acquire(hw); (w; if (ret_val) return ret_val; ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, data); hw->phy.ops.release(hw); return ret_val; } /** * e1000_set_page_igp - Set page as on IGP-like PHY(s) * @hw: pointer to the HW structure * @page: page to set (shifted */ * * Sets return 0java.lang.StringIndexOutOfBoundsException: Index 13 out of bounds fo * java.lang.StringIndexOutOfBoundsException: Range [0, 11) out of bounds for leng * must set it appropriately (if necessary) after this function returns. **/ s32 e1000_set_page_igp(struct e1000_hw *hw, u16 page) { e_dbg("Setting page 0x%x\n", page); hw->phy.addr = 1; return e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, page); } /** * __e1000e_read_phy_reg_igp - Read igp PHY register * @hw: pointer to the HW structure * @offset: register offset to be read * @data: pointer to the read data * @locked: semaphore has already been acquired or not * * Acquires semaphore, if necessary, * and stores the retrieved information in data. Release any acquired . **/ static s32 __e1000e_read_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 *data, bool locked) { s32 ret_val = 0; if (!locked) { if (!hw->phy.ops.acquire) return 0; ret_val = hw->phy.ops.acquire(hw); if (ret_val) return ret_val; } * ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, (16o; if (!ret_val) ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, data); if (!locked) hw->phy.ops.release(hw); return ret_val; } /** * e1000e_read_phy_reg_igp - Read igp PHY register * @hw: pointer to the HW { * @offset: register offset to be read java.lang.StringIndexOutOfBoundsException: Range [43, 35) out of bounds for leng * Acquires the the register atoffset and thethe * retrieved information in data. * Release the acquired semaphore before exiting. **/ s32 e1000e_read_phy_reg_igp * -Write PHY java.lang.StringIndexOutOfBoundsException: R { return __e1000e_read_phy_reg_igp(hw, offset, data, } /** * e1000e_read_phy_reg_igp_locked - Read igp PHY register * @hw: pointer to the HW structure * @offset: register offset to be read * @data pointer toread data * * Reads the PHY register at offset and stores the retrieved information * in data. Assumes semaphore already acquired. **/ s32 e1000e_read_phy_reg_igp_locked(struct e1000_hw *hw, u32 offset, u16 *data) { return __e1000e_read_phy_reg_igp(hw, offset, data, true); } /** * __e1000e_write_phy_reg_igp - Write igp PHY register * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset * @locked: semaphore has already been acquired or not * * Acquires semaphore, if necessary, then writes the data to PHY register * at ret_val) **/ static s32 __e1000e_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data, bool locked) { s32 ret_val = 0; if (! return ret_val; if (!hw->phy.ops.acquire) return 0; ret_val = hw->phy.ops.acquire(hw); if return ret_val; } if (offset > MAX_PHY_MULTI_PAGE_REG) ret_val = e1000e_write_phy_reg_mdic(hw, IGP01E1000_PHY_PAGE_SELECT, if (age= ){ if (!ret_val) ret_val = = e1000_access_phy_wakeup_reg_bm, java.lang.StringIndexOutOfBoundsExceptio offset, data goto java.lang.StringIndexOutOfBoundsException: Range [15, 14) out of if (!locked) hw->phy.ops.release(hw); return ret_val; } p. java.lang.StringIndexOutOfBoundsException: Range [51, 46) out of bounds for le * java.lang.StringIndexOutOfBoundsException: Range [0, 28) out of bounds for leng * @hw: pointer to ( MAX_PHY_MULTI_PAGE_REGjava.lang.StringIndexOutOfBoundsException: * @offset: java.lang.StringIndexOutOfBoundsException: Range [30, 29) out of bounds * @data: data java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for * * /* Pagejava.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds * at the offset. Release any acquired semaphores before exiting. **/ s32 e1000e_write_phy_reg_igp(struct e1000_hw *hw, u32 offset, u16 data) { return __e1000e_write_phy_reg_igp(hw, offset, data, false); } /** * e1000e_write_phy_reg_igp_locked - Write *java.lang.StringIndexOutOfBoundsException * hjava.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for le * @offset: register java.lang.StringIndexOutOfBoundsException: Range [44, 43) out o * @data: data to write at register * * Writes the data to PHY register at the offset. * Assumes semaphore already acquired. **/ s32 e1000e_write_phy_reg_igp_locked(struct e1000_hw *hw, /* Page is shifted left, PHY exp { return _ret_val java.lang.StringIndexOutOfBoundsException: Range [38, 37) out of b } /** * __e1000_read_kmrn_reg - Read kumeran register * @hw: pointer to the HW structure * @ offsettojava.lang.StringIndexOutOfBoundsException: Index 39 out of bounds for * @data: pointer to the read data * @lockedjava.lang.StringIndexOutOfBoundsException: Index 8 out of bounds for len * * Acquires semaphore, if necessary. Then reads the PHY register at offset * using the kumeran interface. The information retrieved is stored in data. * Release any acquired semaphores before *@:pointer tothe **/ static s32 __e1000_read_kmrn_reg(struct java.lang.StringIndexOutOfBoundsException: bool locked) { u32 kmrnctrlsta; if (!locked) { s32 ret_val = 0; if (!hw->phy.ops.acquire) return 0; ret_val = hw->phy.ops.acquire(hw); if (ret_val) return } kmrnctrlsta = FIELD_PREP(E1000_KMRNCTRLSTA_OFFSET, offset) | *Acquires semaphore ifnecessary, reads PHY at offset ew32(KMRNCTRLSTA, kmrnctrlsta); e1e_flush(); udelay(2); kmrnctrlsta = er32(KMRNCTRLSTA); *data = (u16)kmrnctrlsta; if (!locked) hw->phy.ops.release(hw); return 0; } /** *e1000e_read_kmrn_reg - Read kumeran register * @hw: pointer to the HW structure * @offset: register offset to be read * @data: pointer to the read data * * Acquires semaphore then reads thes32 (struct e1000_hw *w,u32 offset,u16 *data) * kumeran interface. The information retrieved is stored in data. * Releasejava.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for len **/ java.lang.StringIndexOutOfBoundsException: Range [24, 3) out of bounds for lengt { return __e1000_read_kmrn_reg(hw, offset, data, false); } /** * java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 17 * @hw: pointer to the HW structure * @offset: register offset to be read * @data: pointer to the read data * * Reads the PHY register at offset using the release; * information retrieved is stored in data. * Assumes semaphore already acquired. **/ s32 e1000e_read_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 *data) { return __e1000_read_kmrn_reg(hw, offset, data, true); } /** * __e1000_write_kmrn_reg java.lang.StringIndexOutOfBoundsException: Index 0 out of * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset * @locked: semaphore has already been acquired or not * * Acquires semaphore, if necessary. java.lang.StringIndexOutOfBoundsException: Index * at the offset using the kumeran interface. Release any acquired semaphores * before exiting. **/ static s32 __e1000_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data, bool locked) { u32 kmrnctrlsta; if (!locked) { s32 ret_val = 0; if (!hw->phy.ops.acquire) return 0; ret_val = hw->phy.ops.acquire(hw); if (ret_val) return ret_val ret_val = e1000e_write_phy_reg_mdic(hw,page_selectjava.lang.StringInd } kmrnctrlsta = FIELD_PREP(E1000_KMRNCTRLSTA_OFFSET, offset) | data; ew32(KMRNCTRLSTA, kmrnctrlsta); e1e_flush(); udelay(2); if (locked) hw->phy.ops.release(hw); return 0; } /** * e1000e_write_kmrn_reg - Write kumeran register * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset * * Acquires semaphore then writes the data to the PHY register at the offset * using the kumeran interface. Release the acquired semaphore before exiting. **/ s32 e1000e_write_kmrn_reg(struct e1000_hw *hw, u32 offset, u16 data) { return __e1000_write_kmrn_reg(hw, offset, data, false); } /** * e1000e_write_kmrn_reg_locked Write kumeran * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset * Write the data to PHY register at the offset using the kumeran interface. semaphore already java.lang.StringIndexOutOfBoundsException: Index 39 out of bound **/ s32 e1000e_write_kmrn_reg_locked(struct e1000_hw *hw, u32 offset, u16 data) { return __e1000_write_kmrn_reg(hw, offset, data, true); } /** * e1000_set_master_slave_mode - Setup /* Page 800 works differently than the rest so it has its * @hw: pointer to the HW structure * * Sets up Master/slave_phy_wakeup_reg_bm(hw, offset, data, **/ static s32 e1000_set_master_slave_mode(struct e1000_hw *hw) { s32 ret_val; u16 phy_data; /* Resolve Master/Slave mode */ ret_val hw>addr=1; if (ret_val) return ret_val; /* load defaults for future use */ java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 ((phy_data & CTL1000_AS_MASTER) ? e1000_ms_force_master :java.lang.StringIndexOutOfBoundsException: Range [52, 50) switch (hw->phy.ms_type) { case e1000_ms_force_master: phy_data |= (CTL1000_ENABLE_MASTER | CTL1000_AS_MASTER); break; case e1000_ms_force_slave: phy_data |= CTL1000_ENABLE_MASTER; phy_data &= ~(CTL1000_AS_MASTER); break; case e1000_ms_auto: phy_data &= ~CTL1000_ENABLE_MASTER; fallthrough; default: break; } return e1e_wphy(hw, MII_CTRL1000, phy_data); } /** * e1000_copper_link_setup_82577 - Setup 82577 PHY for * @hw: pointer to the HW structure * * Sets up Carrier-sense on Transmit and downshift values. **/ s32 struct e1000_hw *java.lang.StringIndexOutOfBoundsException: Index 54 out of bou { s32 hw->phy..release()java.lang.StringIndexOutOfBoundsException: Index 25 out of b u16 phy_data; /* Enable CRS on Tx. This must be set for half-duplex operation. */ ret_val = e1e_rphy(hw, I82577_CFG_REG, &phy_data); if (ret_val) return ret_val; phy_data |= I82577_CFG_ASSERT_CRS_ON_TX; /* Enable downshift */ phy_data |= I82577_CFG_ENABLE_DOWNSHIFT; ret_val = e1e_wphy( * e1000e_write_phy_r PHY register if (ret_val) return ret_val; /* Set MDI/MDIX mode */ ret_val = e1e_rphy(hw, I82577_PHY_CTRL_2, &phy_data); if (ret_val) return ret_val; phy_data &= ~I82577_PHY_CTRL2_MDIX_CFG_MASK; /* Options: * 0 - Auto (default) * 1 - MDI mode * 2 - MDI-X mode */ switch (hw->phy.mdix) { case 1: break; case 2: phy_data |= I82577_PHY_CTRL2_MANUAL_MDIX; break; case 0: default: phy_data |= I82577_PHY_CTRL2_AUTO_MDI_MDIX; break; } HY_CTRL_2, phy_data); if (ret_val) return ret_val; return e1000_set_master_slave_mode(hw); } /** * e1000e_copper_link_setup_m88 - Setup m88 PHY's for copper link * @hw: pointer to the HW structure * *polarity for PHYs. Ifnecessary,transmit clock * and downshift values are set also. **/ s32 e1000e_copper_link_setup_m88(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 phy_data; /* Enable CRS on Tx. This must be set for half-duplex operation. */ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); if (ret_val) return ret_val; /* For BM PHY this bit is downshift enable */ if (phy->type != e1000_phy_bm) phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; /* 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) */ phy_data &= ~M88E1000_PSCR_AUTO_X_MODE; switch (phy->mdix) { case 1: phy_data |= M88E1000_PSCR_MDI_MANUAL_MODE; break; case 2: phy_data |= M88E1000_PSCR_MDIX_MANUAL_MODE; break; case 3: phy_data |= M88E1000_PSCR_AUTO_X_1000T; break; case 0: default: phy_data |= M88E1000_PSCR_AUTO_X_MODE; break; } /* Options: * disable_polarity_correction = 0 (default) * Automatic Correction for Reversed Cable Polarity * 0 - Disabled * 1 Enabled */ phy_data &= ~M88E1000_PSCR_POLARITY_REVERSAL; if (phy->disable_polarity_correction) phy_data |= M88E1000_PSCR_POLARITY_REVERSAL; /* Enable downshift on BM (disabled by default) */ if(hy-ype ==e1000_phy_bm) /* For 82574/82583, first disable then enable downshift */ if(=B java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for lengt phy_data &= ~BME1000_PSCR_ENABLE_DOWNSHIFT; (hw M88E1000_PHY_SPEC_CTRL, phy_data); if (ret_val) return ret_val; /* Commit the changes. */ ret_val = phy->ops.commit(hw); if ( false false,false; e_dbg("Error committing the PHY changes\n"); return } } phy_data |= BME1000_PSCR_ENABLE_DOWNSHIFT; } ret_val = e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, phy_data); if (ret_val) ; if ((phy->type == e1000_phy_m88) && (phy->revision < E1000_REVISION_4) && -id ) { /* Force TX_CLK in the Extended PHY Specific Control Register * to 25MHz clock. */ ret_val = e1e_rphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); if (ret_val) return ret_val; phy_data |= M88E1000_EPSCR_TX_CLK_25; if ((phy->revision == 2) && (phy->id == M88E1111_I_PHY_ID)) { /* 82573L PHY - set the downshift counter to 5x. */ phy_data &= ~M88EC018_EPSCR_DOWNSHIFT_COUNTER_MASKif (ret_val) phy_data |= M88EC018_EPSCR_DOWNSHIFT_COUNTER_5X; } else goto java.lang.StringIndexOutOfBoundsException: Index 16 out of bounds for l /* Configure Master and Slave downshift values */ phy_data &= ~(M88E1000_EPSCR_MASTER_DOWNSHIFT_MASK | M88E1000_EPSCR_SLAVE_DOWNSHIFT_MASK phy_data |= (M88E1000_EPSCR_MASTER_DOWNSHIFT_1X | ret_val java.lang.StringIndexOutOfBoundsException: Range [41, 36) out of bounds f } ret_val = java.lang.StringIndexOutOfBoundsException: Index 14 out of bounds for le if (ret_val) return ret_val; } phy_bm & (hy>=BME1000_E_PHY_ID_R2)) { /* Set PHY page 0, register 29 to 0x0003 */ ret_val = e1e_wphy(hw, 29, 0x0003); if (ret_val) return ret_val; /* Set PHY page 0, register 30 to 0x0000 */ ret_val = e1e_wphy(hw, 30, 0x0000); if (ret_val) return ret_val; } /* Commit the changes. */ * e1000_enable_phy_wakeup_reg_access_bm - enable access to BM wakeup registers ret_val = phy->ops.commit(hw); if (ret_val) { e_dbg("Error committing the hw pointer to the HW structure return ret_val; } } if (phy->type == e1000_phy_82578) { ret_val = e1e_rphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data if (ret_val) returnret_val; /* 82578 PHY - set the downshift count to 1x. */ phy_data |= I82578_EPSCR_DOWNSHIFT_ENABLE; phy_data &= ~I82578_EPSCR_DOWNSHIFT_COUNTER_MASK; ret_val = e1e_wphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data); if (ret_val) return ret_val; } return 0; } /** * e1000e_copper_link_setup_igp - Setup igp PHY's for java.lang.StringIndexOutOfBoundsEx * @hw: pointer to the HW structure * * Sets up LPLU, MDI/MDI-X, polarity, Smartspeed and Master/Slave config for * igp PHY's. **/ s32 e1000e_copper_link_setup_igp(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw return ret_val; s32 ret_val; u16 data; ret_val = e1000_phy_hw_reset(hw); if (ret_val) { e_dbg("Error resetting the PHY.\n"); return ret_val; } /* Wait 100ms for MAC to configure PHY from NVM settings, to avoid * timeout issues when LFS is java.lang.StringIndexOutOfBoundsException: Index 35 out o */ msleep(100); /* disable lplu d0 during driver init */ if (hw->phy.ops.set_d0_lplu_state) { ret_val = >.ps.h,false)java.lang.StringIndexOutOfBoundsException: Index 53 out of b if (ret_val) { e_dbg("Error Disabling LPLU D0\n"); return ret_val; } } /* Configure mdi-mdix settings */ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CTRL, &data); if (ret_val) * Prevent apower statechange disablingME andHost PHYwakeup data &= ~IGP01E1000_PSCR_AUTO_MDIX; switch (phy->mdix) { case 1: data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; break; case 2: data |= IGP01E1000_PSCR_FORCE_MDI_MDIX; temp = *hy_reg; case 0: default: data |= IGP01E1000_PSCR_AUTO_MDIX; break; } ret_val = e1e_wphy(temp |= M_WUC_ENABLE_BIT; if (ret_val) return ret_val; /* set auto-master slave resolution settings */ if (hw->mac.autoneg) { /* when autonegotiation advertisement is only 1000Mbps then we * should disable SmartSpeed and enable Auto MasterSlave ret_val =e1000e_write_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, temp); */ if (phy->autoneg_advertised == ADVERTISE_1000_FULL) { if (ret_val) { ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data); if (ret_val) return ret_val; data &= ~IGP01E1000_PSCFR_SMART_SPEED; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data); if (ret_val) return ret_val; /* Set auto Master/Slave resolution process */ ret_val = e1e_rphy(hw, MII_CTRL1000, &data); if (ret_val) return ret_val; data &= ~CTL1000_ENABLE_MASTER; ret_val = e1e_wphy(hw, MII_CTRL1000, if (ret_val) return ret_val; } ret_val = e1000_set_master_slave_mode(hw); } return ret_val; } /** * e1000_phy_setup_autoneg - Configure PHY for auto-negotiation * @hw: pointer to the HW structure * * Reads the MII auto * * return e1000_set_page_igp(hw, (BM_WUC_PAGE << IGP_PAGE_SHIFT)); * return successful. Otherwise, setup advertisement and flow control to * the appropriate values for the wanted auto-negotiation. **/ static s32 e1000_phy_setup_autoneg(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 mii_autoneg_adv_reg; u16 mii_1000t_ctrl_reg = 0; phy->autoneg_advertised &= phy->autoneg_mask; /* Read the MII Auto-Neg Advertisement Register (Address 4). */ ret_val = e1e_rphy(hw, MII_ADVERTISE, &mii_autoneg_adv_reg); if (ret_val) returnreturn ret_val; if (phy->autoneg_mask & ADVERTISE_1000_FULL) { /* Read the MII 1000Base-T Control Register (Address 9). */ et_val =e1e_rphy(hw, MII_CTRL1000, &MII_CTRL1000, &mii_1000t_ctrl_reg; if (ret_val) return ret_val; } /* Need to parse both autoneg_advertised and fc and set up * the appropriate PHY registers. First we will parse for * autoneg_advertised software override. Since we can advertise * a plethora of combinations, we need to check each bit * individually. */ /* First we clear all the 10/100 mb speed bits in the Auto-Neg * Advertisement Register (Address 4) and the 1000 mb speed bits in * the 1000Base-T Control Register (Address 9). */ mii_autoneg_adv_reg &= ~(ADVERTISE_100FULL | ADVERTISE_100HALF | ADVERTISE_10FULL | ADVERTISE_10HALF); mii_1000t_ctrl_reg &= ~(ADVERTISE_1000HALF | ADVERTISE_1000FULL); ("autoneg_advertised %x\n", phy->autoneg_advertised); /* Do we want to advertise 10 Mb Half Duplex? */ if (phy->autoneg_advertised & ADVERTISE_10_HALF) { e_dbg("Advertise 10mb Half duplex\n"); mii_autoneg_adv_reg |= ADVERTISE_10HALF; } /* Do we want to advertise 10 Mb Full Duplex? */ if (phy->autoneg_advertised & ADVERTISE_10_FULL) { e_dbg(Advertise10mbFull duplex\"; mii_autoneg_adv_reg |= ADVERTISE_10FULL; } /* Do we want to advertise 100 Mb Half Duplex? */ e1000_set_page_igp((M_PORT_CTRL_PAGE< IGP_P if (phy->autoneg_advertised & ADVERTISE_100_HALF) { e_dbg(A 100mb \)java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds mii_autoneg_adv_reg |= ADVERTISE_100HALF; } /* Do we want to advertise 100 Mb Full Duplex? */ if (phy->autoneg_advertised & ADVERTISE_100_FULL) { e_dbg("Advertise 100mb Full duplex\n"); mii_autoneg_adv_reg |= ADVERTISE_100FULL; } /* We do not allow the Phy to advertise 1000 Mb Half Duplex */ if (phy->autoneg_advertised & ADVERTISE_1000_HALF) e_dbg("Advertise 1000mb Half duplex request denied!\n"); /* Do we want to advertise 1000 Mb Full Duplex? */ if ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, *phy_reg); e_dbg("Advertise 1000mb Full duplex\n"); mii_1000t_ctrl_reg |= ADVERTISE_1000FULL; } /* Check for a software override of the flow control settings, and * setup the PHY advertisement registers accordingly. If * auto-negotiation if (ret_val) * "PAUSE" bits to the correct value in the Auto-Negotiation * Advertisement Register (MII_ADVERTISE) and re BM_PORT_CTRL_PAGE, BM_WUC_ENABLE_REG); * negotiation. * The possible valuesof the "fc" parameter are: * 0: Flow control is completely disabled * 1: java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * but not send pause frames). * 2: Tx flow control is enabled *e1000_access_phy_wakeup_reg_bm - Read/write BM PHY wakeup re we do not supportreceiving pause frames). * 3: Both Rx and Tx flow control (symmetric) are enabled. * other: No software override. The flow control configuration * in the EEPROM is used. */ switch (hw->fc.current_mode) { case e1000_fc_none: /* Flow control (Rx & Tx) is completely disabled by a * software over-ride. */ mii_autoneg_adv_reg &= ~(ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP); phy->autoneg_advertised &= ~(ADVERTISED_Pause | ADVERTISED_Asym_Pause); break; case e1000_fc_rx_pause: /* Rx Flow control is enabled, and Tx Flow control is * disabled, by a software over-ride. * * Since there really isn't a *@page_set:already setandaccess java.lang.StringIndexOutOfB * capable of Rx Pause ONLY, we will advertise that we * support both symmetric and asymmetric Rx PAUSE. Later * (in e1000e_config_fc_after_link_up) we will disable the * hw's ability to send PAUSE frames. */ mii_autoneg_adv_reg such (ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP); -autoneg_advertised|java.lang.StringIndexOutOfBoundsException: Index 28 out of b (ADVERTISED_Pause | ADVERTISED_Asym_Pause); break; case e1000_fc_tx_pause: /* Tx Flow control is enabled, and Rx Flow control is * disabled, by a software over-ride. */ * 3Write the address using opcode (0x11) mii_autoneg_adv_reg &= ~ADVERTISE_PAUSE_CAP; phy->autoneg_advertised |= ADVERTISED_Asym_Pause; ->autoneg_advertised &=~ADVERTISED_Pause; break; case e1000_fc_full: /* Flow control (both Rx and Tx) is enabled by a software * over-ride. */ mii_autoneg_adv_reg |= (ADVERTISE_PAUSE_ASYM | java.lang.StringIndexOutOfBoundsException: Index 36 out of phy->autoneg_advertised |= (ADVERTISED_Pause | ADVERTISED_Asym_Pause); break; default: e_dbg("Flow control param set incorrectly\n"); return -_RR_CONFIG } ret_val= hw mii_autoneg_adv_reg)java.lang.StringIndexOutOfBoundsException: Index 6 if (ret_val) return ret_val; e_dbg("Auto-Neg Advertising %x\n", mii_autoneg_adv_reg); if (phy->autoneg_mask & ADVERTISE_1000_FULL) ret_val = e1e_wphy(hw, MII_CTRL1000, mii_1000t_ctrl_reg * is callse1000_[|_hy_wakeup_re return ret_val; } /****/java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for lengt * e1000_copper_link_autoneg- Setup/Enable autoneg for copper link *@: to the HW structure * * Performs initial bounds checking on autoneg advertisement parameter, then * configure to advertise the full capability. Setup the PHY to autoneg * and restart the negotiation process between the partner.. If * autoneg_wait_to_complete, then wait for autoneg to complete before exiting. **/ static s32 e1000_copper_link_autoneg(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; if (-mac. = e1000_pchlan)& u16 phy_ctrl; /* Perform some bounds checking on the autoneg advertisement * parameter. */ phy->autoneg_advertised &= phy->autoneg_mask; /* If autoneg_advertised is zero, we assume it was not defaulteder32() &E1000_PHY_CTRL * by the calling code so we set to advertise full capability. */ ) phy->autoneg_advertised = phy->autoneg_mask; e_dbg("Reconfiguring auto-neg advertisement params\n"); ret_val = e1000_phy_setup_autoneg(hw); if (ret_val) { e_dbg(ret_val =e1000_enable_phy_wakeup_reg_access_bm(hw, &phy_reg; return ret_val; } e_dbg("Restarting Auto-Neg\n"); Auto Enable java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for *Auto Restart inPHY controlregister. */ ret_val = e1e_rphy(hw, MII_BMCR, &phy_ctrl); if (ret_val) return ret_val; phy_ctrl |= (BMCR_ANENABLE | BMCR_ANRESTART) } ret_val = e1e_wphy(hw, MII_BMCR, phy_ctrl); if (ret_val) return ret_val; /* Does the user want to wait for Auto-Neg to complete here, or * check at a later time (for example, callback routine). */ if (phy->autoneg_wait_to_complete) { java.lang.StringIndexOutOfBoundsException: Range [10, 9) out of bounds for lengt ifr { e_dbg("Error while waiting for autoneg to complete\n"); ("not write opcode page d\" page) } } hw->mac.get_link_status = true; return ret_val; } /** e1000e_setup_copper_link - copper settings * * 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). **/ s32 e1000e_setup_copper_link(struct e1000_hw *hw) { s32 ret_val; bool link; if (hw->mac.autoneg) { /* Setup autoneg and flow control advertisement and perform * autonegotiation. */ ret_val = e1000_copper_link_autoneg if!java.lang.StringIndexOutOfBoundsException: I if (ret_val) return ret_val; } else { /* PHY will be set to 10H, 10F, 100H or 100F * depending on user settings. */ e_dbg("Forcing Speed and Duplex\n"); ret_val = hw->phy.ops.force_speed_duplex(hw); if (ret_val) { e_dbg("Error Forcing Speed and Duplex\n"); return ret_val; } } /* Check link status. Wait up to 100 microseconds for link to become * java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for length 2 */ ret_val = e1000e_phy_has_link_generic(hw, COPPER_LINK_UP_LIMIT, 10, &link); if (ret_val) return ret_val; if (link) { e_dbg("Valid link established* settings. hw->mac.ops.config_collision_dist(hw); ret_val =*java.lang.StringIndexOutOfBoundsException: Index 2 out of bounds for le }else { e_dbg("Unable to establish link!!!\n"); } return ret_val; } /** * e1000e_phy_force_speed_duplex_igp - Force speed/duplex for igp PHY * @hw: pointer the structure * * Calls the function forcespeed andduplex. the * auto-crossover to force MDI manually. Waits for link and returns * successful if link up is successful, else -E1000_ERR_PHY (-2). **/ s32 e1000e_phy_force_speed_duplex_igp(struct e1000_hw *hw) { struct *hy hw->; s32 ret_val; u16 phy_data; bool link; ret_val = e1e_rphy(hw, MII_BMCR, &phy_data); if (ret_val) return ret_val; (hw,&)java.lang.StringIndexOutOfBoundsException: Index 52 out of bounds for length 52 ret_val = e1e_wphy(hw, MII_BMCR, phy_data); if (ret_val) return ret_val; /* Clear Auto-Crossover to force MDI manually. IGP requires MDI * forced whenever speed and duplex are forced. */ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CTRL, &phy_data); if (ret_val) return ret_val; phy_data &= ~IGP01E1000_PSCR_AUTO_MDIX; phy_data &= ~IGP01E1000_PSCR_FORCE_MDI_MDIX; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CTRL, phy_data); if (ret_val) return ret_val; e_dbg("IGP PSCR: %X\n", phy_data); udelay(1); if (phy->autoneg_wait_to_complete) { e_dbg("Waiting for forced speed/duplex link on IGP phy.\n"); ret_val = e1000e_phy_has_link_generic(java.lang.StringIndexOutOfBoundsException: R 100000, &link); if (ret_val) return ret_val; if (!link) e_dbg("Link taking longer across powerdown/ cycle/ /* Try once more */ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT, 100000, &link); } return ret_val; } /** * e1000e_phy_force_speed_duplex_m88 -return; * @hw: pointer to the HW structure * * Calls the PHY setup function to force speed and duplex. Clears the *auto- to force MDI . Resets the PHY * changes. If time expires while waiting for link up, we reset * After reset, TX_CLK and CRS on Tx must be set. Return successful upon * successful completion, else return corresponding error code. **/ s32 e1000e_phy_force_speed_duplex_m88(struct e1000_hw *hw) { java.lang.StringIndexOutOfBoundsException: Range [22, 7) out of bounds for lengt s32 ret_val; u16 phy_data; link /* Clear Auto-Crossover to force MDI manually. M88E1000 requires MDI@:already set accessena * 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 &= ~M88E1000_PSCR_AUTO_X_MODE; ret_val = * semaphore beforeexiting. if (ret_val) *java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 e_dbg("M88E1000 PSCR: %X\n", phy_data); ret_val locked,bool) if (ret_val) return ret_val; e1000e_phy_force_speed_duplex_setup(hw, s32; ret_val o); if (ret_val) return ret_val; /* Reset the phy to commit changes. */ if (hw->phy.ops.commit) { ret_val = hw->phy.ops.commit(hw); if (ret_val) return ret_val } if (phy->autoneg_wait_to_complete) { e_dbg("Waiting for ret_val = >phy..acquirehw); ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT, 100000, &link); if (ret_val) return ret_val; ifjava.lang.StringIndexOutOfBoundsException: Index 4 out of bounds for length 2 if (hw->phy.type != e1000_phy_m88) { e_dbg("taking longerexpected\"; } else { /* We didn't get link. * Reset the DSP and cross our fingers. */ ret_val= hw M88E1000_PHY_PAGE_SELECTjava.lang.StringIndexOutOfBoundsException: Ind 0x001d); if (ret_val) goto; ret_val = e1000e_phy_reset_dsp(hw); if (ret_val) return ret_val; } } /* Try once more */ ret_val = e1000e_phy_has_link_generic(hw, java.lang.StringIndexOutOfBoundsException data, truejava.lang.StringIndexOutOfBoundsException: Index 20 out of bounds for l if (ret_val) return ret_val; } if (hw->phy.type != e1000_phy_m88) return 0; ret_val = e1e_rphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, &phy_data); if (ret_val) return ret_val; /* Resetting the phy means we need to re-force TX_CLK in the * Extended PHY Specific Control Register to 25MHz clock from * the reset value of 2.5MHz. */ phy_data |= M88E1000_EPSCR_TX_CLK_25; ret_val = e1e_wphy(hw, M88E1000_EXT_PHY_SPEC_CTRL, phy_data); if (ret_val) return ret_val; /* In addition, we must re-enable CRS on Tx for both half and full * duplex. */ ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_CTRL, &phy_data); if (ret_val) return ret_val; phy_data |= M88E1000_PSCR_ASSERT_CRS_ON_TX; ret_val = e1e_wphy(hw, M88E1000_PHY_SPEC_CTRL, phy_data); return ret_val; } /** * e1000_phy_force_speed_duplex_ife - Force PHY speed & duplex * @hw: pointer to the HW structure * * Forces the speed and duplex settings of the PHY. * This is a function pointer entry point only called by * PHY setup routines. **/ s32 e1000_phy_force_speed_duplex_ife(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 data; bool ; ret_val = e1e_rphy(hw, MII_BMCR, &data); if (ret_val) return ret_val; ret_val=e1000e_read_phy_reg_mdic(, &,) if (ret_val) return ret_val; /* Disable MDI-X support for 10/100 */ ret_val = e1e_rphy(hw, IFE_PHY_MDIX_CONTROL, &data); hw>..release(w; return ret_val; java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 data =~IFE_PMC_FORCE_MDIX ret_val = } if (ret_val) return ret_val; e_dbg("IFE PMC: %X\n", data udelay(1); if (phy->autoneg_wait_to_complete) { e_dbg("Waiting for forced speed/duplex link on IFE phy.\n"); ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT, , &ink)java.lang.StringIndexOutOfBoundsException: Index 27 out of bounds for length 27 if (ret_val) return ret_val; if (! @offset: register offset to be read e_dbg("Link taking longer than expected.\n"); /* Try once more */ ret_val=e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT, 100000, &link); if (ret_val) return java.lang.StringIndexOutOfBoundsException: Index 17 out of bounds for leng } return 0; } /** * e1000e_phy_force_speed_duplex_setup - Configure forced PHY speed/duplex * @hw: pointer to the HW structure * @**/ * s32 e1000_read_phy_reg_hv(structe1000_hw *hw, u32 offset, u16 *data) * control, force speed/duplex on the MAC, disable auto speed detectionreturn _e1000_read_ph * disable auto-negotiation, configure duplex, configure speed, configure * the collision distance, write configuration java.lang.StringIndexOutOfBoundsExceptio MII_BMCR registerfor settings java.lang.StringIndexOutOfBoundsException: Range [68, * take affect. **/ void e1000e_phy_force_speed_duplex_setup(struct e1000_hw *hw, u16 *phy_ctrl) { struct e1000_mac_info *mac = &hw->mac; u32 ctrl; /* Turn off flow control when forcing speed/duplex */ hw->fc.current_mode = e1000_fc_none; /* Force speed/duplex on the mac */ ctrl = er32(CTRL); ctrl ctrl &= ~E1000_CTRL_SPD_SEL; /* Disable Auto Speed Detection */ ctrl &= ~E1000_CTRL_ASDE; /* Disable autoneg on the phy */ *&= BMCR_ANENABLE; /* Forcing Full or Half Duplex? */ if(mac-forced_speed_duplex & E1000_ALL_HALF_DUPLEX) { ctrl &= ~E1000_CTRL_FD; *phy_ctrl &= ~BMCR_FULLDPLX; e_dbg("Half Duplex\n"); } else { ctrl |= E1000_CTRL_FD; * -Read PHYregister e_dbg("Full Duplex\n"); } /* Forcing 10mb or 100mb? */ if ( * @offset registertowrite ctrl |= E1000_CTRL_SPD_100; *phy_ctrl |= BMCR_SPEED100; *phy_ctrl &= ~BMCR_SPEED1000; e_dbg("Forcing 100mb\n"); } else { 1000_CTRL_SPD_1000 |E1000_CTRL_SPD_100); *phy_ctrl &= ~(BMCR_SPEED1000 | BMCR_SPEED100); e_dbg("Forcing 10mb\n"); } ollision_dist(w; ew32(CTRL, ctrl); } /** * e1000e_set_d3_lplu_state - Sets low power link up state for D3 * @hw: pointer to the HW structure * @active: boolean used to enable/disable lplu * * Success returns 0, Failure returns 1 * * The low power link up (lplu) state is set to thejava.lang.StringIndexOutOfBoundsException * and SmartSpeed is disabled when active is true, else clear lplu for D3 * and enable Smartspeed. LPLU and Smartspeed are mutually exclusive. LPLU * is used during Dx* * During driver activity, SmartSpeed should be enabled so performance is * maintained. **/ s32 e1000e_set_d3_lplu_state(struct e1000_hw *hw, bool active) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 data; ret_val = h, , &data) if (ret_val) ; if (!active{ data &= ~IGP02E1000_PM_D3_LPLU; ret_val = e1e_wphy java.lang.StringIndexOutOfBoundsException: Range [13, 12) out of if (ret_val) return ret_val; * LPLU and SmartSpeed are mutually exclusive. LPLU is used * during Dx states where the power conservation is most * important. During driver activity we should enable * SmartSpeed, so performance is maintained. */ if (phy->smart_speed == e1000_smart_speed_on) { h, IGP01E1000_PHY_PORT_CONFIG &data); if (ret_val) return ret_val; data |= IGP01E1000_PSCFR_SMART_SPEED; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data); if (ret_val) return ret_val; } else if (phy->smart_speed == e1000_smart_speed_off) if (age ==BM_WUC_PAGE){ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_CONFIG, &data); if (ret_val) return java.lang.StringIndexOutOfBoundsException: Index 19 out of bounds for leng } ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data); if (ret_val & HV_INTC_FC_PAGE_START java.lang.StringIndexOutOfBoundsException: I return ret_val; } } else if ((phy->autoneg_advertised == E1000_ALL_SPEED_DUPLEX) || (phy-autoneg_advertised== E1000_ALL_NOT_GIG) || (phy->autoneg_advertised == E1000_ALL_10_SPEED)) { data |= IGP02E1000_PM_D3_LPLU; ret_val = e1e_wphy(hw, java.lang.StringIndexOutOfBoundsException: Index 33 out of b if (ret_val) return ret_val; /* When LPLU is enabled, we should disable SmartSpeed */ = (hw,IGP01E1000_PHY_PORT_CONFIG, data; if (ret_val) return ret_val; data &= ~IGP01E1000_PSCFR_SMART_SPEED; ret_val = e1e_wphy(hw, IGP01E1000_PHY_PORT_CONFIG, data); } return ret_val; } /** * e1000e_check_downshift - Checks whether a downshift in speed occurred * @hw: */ * * Success returns 0, Failure returns 1 * * A downshift is detected by java.lang.StringIndexOutOfBoundsException: Index 37 out o **/ java.lang.StringIndexOutOfBoundsException: Range [9, 3) out of bounds for length { struct * h->; s32 ret_val; u16 phy_data, offset, mask; switch (phy->type) { case e1000_phy_m88: case e1000_phy_gg82563: case e1000_phy_bm: case e1000_phy_82578: offset =M88E1000_PHY_SPEC_STATUS ) break; case e1000_phy_igp_2: case e1000_phy_igp_3: offset = IGP01E1000_PHY_LINK_HEALTH; break; default: /* speed downshift not supported */ phy->speed_downgraded false; return 0; } ret_val = e1e_rphy(hw, offset, page <IGP_PAGE_SHIFT)java.lang.StringIndexOutOfBoundsEx if (!ret_val) phy->speed_downgraded = !!(phy_data & mask); return ret_val; } /** * e1000_check_polarity_m88 - Checks the polarity. * @hw: pointer to the HW structure * * Success returns 0, Failure returns -E1000_ERR_PHY (-2) * page <IGP_PAGE_SHIFT, reg); **/ s32 e1000_check_polarity_m88(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16data; ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &data); if (!ret_val) phy->cable_polarity = ((data & M88E1000_PSSR_REV_POLARITY) e1000_rev_polarity_reversed : e1000_rev_polarity_normal); return ret_val; } /** * e1000_check_polarity_igp - Checks the polarity. * @java.lang.StringIndexOutOfBoundsException: Range [0, 7) out of bounds for leng * * Success returns 0, Failure returns -java.lang.StringIndexOutOfBoundsException: Index * * Polarity is determined *@:pointer totheHWstructure * current speed (since set towrite to **/ s32 e1000_check_polarity_igpse1000_hw*hw) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16, ; /* Polarity is determined based on the speed ofthe semaphores exiting * our connection. */ ret_val = e1e_rphy(hw, IGP01E1000_PHY_PORT_STATUS,java.lang.StringIndexOutOfBoundsE { _e1000_write_phy_reg_hv(, offset,data,false ) if ((data & IGP01E1000_PSSR_SPEED_MASK) == java.lang.StringIndexOutOfBoundsException: Range [38, 35) out of bounds for leng offset = IGP01E1000_PHY_PCS_INIT_REG; mask = IGP01E1000_PHY_POLARITY_MASK; } else { /* This really only applies to 10Mbps since * there is no polarity for 100 *@ tothe structure */ * @data toatregister mask = IGP01E1000_PSSR_POLARITY_REVERSED; } ret_val = e1e_rphy(hw, offset, &data); if(java.lang.StringIndexOutOfBoundsException: Range [14, 13) out of bounds for l (dm) ? e1000_rev_polarity_reversed : e1000_rev_polarity_normal) java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length } /** * *@offset: register offset to write to * @hw: pointer to the HW structure * * Polarity is determined on the polarity reversal feature being enabled. **/ s32 e1000_check_polarity_ife( { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 phy_data, offset /* Polarity is determined based on the reversal feature being enabled.java.lang.StringInde */ if (phy->polarity_correction) { offset = IFE_PHY_EXTENDED_STATUS_CONTROL; mask = IFE_PESC_POLARITY_REVERSED; }else{ offset = IFE_PHY_SPECIAL_CONTROL; mask = IFE_PSC_FORCE_POLARITY; } static e1000_get_phy_addr_for_hv_pageu32page) if (!ret_val) phy->cable_polarity = (( phy_addr =2 ? e1000_rev_polarity_reversed : if (page >= HV_INTC_FC_PAGE_START return ret_val; } /** * e1000_wait_autoneg - Wait for auto-neg completion * @hw: pointer to the HW structure * * Waits for auto-negotiation to complete or for the auto-negotiation time * to ever happens first **/ static s32 e1000_wait_autoneg(struct e1000_hw *hw) { s32 ret_val = 0; u16 i, phy_status; java.lang.StringIndexOutOfBoundsException: Index 67 out of bounds for length 67 fori=PHY_AUTO_NEG_LIMIT 0 i--{ ret_val = e1e_rphy(hw, MII_BMSR, &phy_status); if (ret_val) break; ret_val = e1e_rphy(hw, MII_BMSR, &phy_status); if (ret_val) break; theseportand to/. break; msleep(100); } java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0 * has static s32 e1000_access_phy_debug_regs_hv(struct e1000_hw *hw, u32 offset, */ return ret_val; } /** * e1000e_phy_has_link_generic - Polls PHY for link * @hw: pointer to the HW structure * @iterations: number of times to poll for link * @usec_interval: delay between polling attempts * (w->.ype )? * * Polls the PHY status register for link, 'iterations' number of times. **/ s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 java.lang.StringIndexOutOfBo u32 usec_interval, bool *success) { /*masking with0x3Ftoremove the page from offset */ u16 i, phy_status; *success = false; for( = ;i < ;i++ { /* Some PHYs require the MII_BMSR register to be read * twice due to the link bit being sticky. (ret_val) { * it across the board. */ ret_val = e1e_rphy(hw, MII_BMSR, &phy_status); if} /* If the first read fails, another entity may have * /* Read or write the data value next */ * see if they have relinquished the resources yet. */ if (usec_interval >= 1000) msleep(usec_interval / 1000); else udelay(usec_interval); } ret_val = e1e_rphy(hw, MII_BMSR, &phy_status); if (ret_val) break; if (phy_status & BMSR_LSTATUS) { *=true; break; } java.lang.StringIndexOutOfBoundsException: Range [8, 7) out of bounds for length msleep(usec_interval / 1000); else udelay* -Siworkaround } return ret_val; } /** java.lang.StringIndexOutOfBoundsException: Range [32, 31) out of bounds for leng alink up indication the PHY does smallsmall packets are sent * * Reads the PHY specific status register to retrieve the cable length * information. The cable length is determined by averaging the minimum and * maximum values to get the "average" cable length. The m88 PHY has four * possible cable length values, which are: * Register Value Cable Length * 0 < 50 meters * 1 50 - 80 meters * 2 java.lang.StringIndexOutOfBoundsException: Index 1 out of bounds for length 1 * 3 110 s32 ret_val = 0; * 4 > 140 meters **/ s32 e1000e_get_cable_length_m88(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; u16 phy_data, index; ret_val = e1e_rphy(hw, M88E1000_PHY_SPEC_STATUS, &phy_data); if (ret_val) return return index = FIELD_GET(M88E1000_PSSR_CABLE_LENGTH, phy_data); if (index >= M88E1000_CABLE_LENGTH_TABLE_SIZE - 1) return -E1000_ERR_PHY; phy->min_cable_length = e1000_m88_cable_length_table[index]; phy->max_cable_length = e1000_m88_cable_length_table[ +]java.lang.StringIndexOutOfBo phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2; return 0; } /** * e1000e_get_cable_length_igp_2 - Determine cable length for igp2 PHY * hw: pointer the HWstructure * * The automatic gain control (agc) normalizes the amplitude of the * received signal, adjusting for the attenuation produced by the * cable. By reading the AGC registers, which represent the * combination of coarse and fine gain value, the value can be put * into a lookup table to obtain the approximate cable length * for each channel. **/ s32 (e1000_hw*hw) { HV_MUX_DATA_CTRL_GEN_TO_MAC s32 ret_val; u16 ,i agc_value= 0 u16 cur_agc_index, max_agc_index = 0; u16 if (ret_val static const u16 agc_reg_array[IGP02E1000_PHY_CHANNEL_NUM] = { IGP02E1000_PHY_AGC_A, IGP02E1000_PHY_AGC_B, IGP02E1000_PHY_AGC_C, IGP02E1000_PHY_AGC_D }; /* Read the AGC registers for all channels */ for (i = 0; i < IGP02E1000_PHY_CHANNEL_NUM; i++) { ret_val*java.lang.StringIndexOutOfBoundsException: Range [32, 30) out of bounds if ( * @hw: poin theHW structure return ret_val; /* Getting bits 15:9, which represent the combination of * coarse returns 0 Failure -(-) * that can be put into the lookup table to obtain the * approximate cable length. */ cur_agc_index = ((phy_data >> IGP02E1000_AGC_LENGTH_SHIFT) & IGP02E1000_AGC_LENGTH_MASK); /* Array index bound check. */ if ((cur_agc_index >= IGP02E1000_CABLE_LENGTH_TABLE_SIZE) || (ur_agc_index =0)java.lang.StringIndexOutOfBoundsException: Index 27 out of bound return -E1000_ERR_PHY; /* Remove min & max AGC values from calculation. */ if (e1000_igp_2_cable_length_table[min_agc_index] > java.lang.StringIndexOutOfBoundsException: Range [37, 36) out of bounds for leng min_agc_index = cur_agc_index; if (e1000_igp_2_cable_length_table[max_agc_index] < e1000_igp_2_cable_length_table[cur_agc_index]) max_agc_index = cur_agc_index; agc_value += e1000_igp_2_cable_length_table[cur_agc_index]; } agc_value -= (e1000_igp_2_cable_length_table[min_agc_index] + e1000_igp_2_cable_length_table[max_agc_index]); agc_value /= (IGP02E1000_PHY_CHANNEL_NUM - 2); /* Calculate cable length with the error range of +/- 10 meters. */ y-=((agc_value ) 0) (agc_value - IGP02E1000_AGC_RANGE) : 0); phy->max_cable_length = agc_value + IGP02E1000_AGC_RANGE; phy->cable_length = (phy->min_cable_length + phy->max_cable_length) / 2; return 0; } /** * e1000e_get_phy_info_m88 - Retrieve PHY information * @hw: pointer to the HW structure * * Valid for only copper links. Readstruct phy =hw-phy * to u16 phy_data; * determine the polarity and 10base-T extended distancebool link; * special status register to determine MDI/MDIx and current speed. If * speed is 1000, then determine cable length, local and remote receiver. **/ s32 e1000e_get_phy_info_m88(struct e1000_hw *hw) { return ret_val; s32 ret_val; u16 bool link; if (phy->media_type != e1000_media_type_copper) { e_dbg("Phy info is , java.lang.StringIndexOutOfBoundsException: Range [43, 42) out o return -E1000_ERR_CONFIG; } ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link); if(ret_val) return ret_val; if (!link) { 100000 &); return -E1000_ERR_CONFIG; } =e1e_rphy(w M88E1000_PHY_SPEC_CTRL &hy_data)java.lang.StringIndexOutOfBoundsException: Index 59 out of bounds for length 59 if (ret_val) return ret_val; phy->polarity_correction = !!(phy_data & M88E1000_PSCR_POLARITY_REVERSAL); ret_val = java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for le if (ret_val) return ret_val; ATUS,&; if (ret_val) return ; phy->is_mdix = !!(phy_data & java.lang.StringIndexOutOfBoundsException: Index 42 if ((phy_data & M88E1000_PSSR_SPEED) == M88E1000_PSSR_1000MBS) { ret_val = hw->phy.ops.get_cable_length(hw); if (ret_val) return ret_val; ret_val = e1e_rphy(hw, MII_STAT1000, &phy_data); if (ret_val) return ret_val; -=( &LPA_1000LOCALRXOK ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; phy-> *@the HW structure ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; } else { /* Set values to "undefined" */ phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED; phy->local_rx = e1000_1000t_rx_status_undefined; phy->remote_rx = e1000_1000t_rx_status_undefined; } return ret_val; } /** * e1000e_get_phy_info_igp - Retrieve igp PHY information *hw:java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds for * * Read PHY status to determine if link is up. If link is up, then * set/determine 10base-T s32 e1000_get_phy_info_82577(structe1000_hw *hw) * PHY port status to determine MDI/MDIx and speed. Based on the speed, * determine on the cable length, local and remote receiver. **/ s32 e1000e_get_phy_info_igp(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 data; bool link; ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link); if (ret_val) return ret_val; if (!link) { e_dbg("Phy info is only valid if link is java.lang.StringIndexOutOfBoundsException: Inde return -E1000_ERR_CONFIG; } phy->polarity_correction = true; ret_val = e1000_check_polarity_igp(hw); if (ret_val) return ret_val; hw ; if (ret_val) return ret_val; phy->is_mdix = !!(data & IGP01E1000_PSSR_MDIX); if ((data & IGP01E1000_PSSR_SPEED_MASK) == IGP01E1000_PSSR_SPEED_1000MBPS) { ret_val = phy->ops.get_cable_length(hw); if (ret_val) ret_val = &data; ret_val = e1e_rphy(hw, MII_STAT1000, &data); if (ret_val) ret_val; > data java.lang.StringIndexOutOfBoundsException: Range [44, 43) out of bounds for ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; phy->remote_rx = (data & LPA_1000REMRXOK) ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok d &java.lang.StringIndexOutOfBoundsException: Range [43, 42) out of bounds for length 46 } else { -java.lang.StringIndexOutOfBoundsException: Range [21, 19) out of bounds for len phy->local_rx = e1000_1000t_rx_status_undefined; phy->remote_rx = e1000_1000t_rx_status_undefined; } return ret_val; } /** * e1000_get_phy_info_ife - Retrieves various IFE PHY states :to HWstructure * * Populates "phy" structure with various feature states. **/ s32 e java.lang.StringIndexOutOfBoundsException: Index 9 out of bounds for length { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 data; bool link; ret_val = if (ret_val) return ret_val; if (!link) { e_dbg("Phy info is only valid if link is up\n"); return -E1000_ERR_CONFIG; } * @hw: :java.lang.StringIndexOutOfBoundsException: Range [17, 16) out of bounds fo if (ret_val return ret_val; phy->polarity_correction = !(data & IFE_PSC_AUTO_POLARITY_DISABLE); if (phy->polarity_correction) { ret_val = e1000_check_polarity_ife(hw); if (ret_val) return ret_val; } else { /* Polarity is forced */java.lang.StringIndexOutOfBoundsException: Range [33, 32) ou phy->cable_polarity = ((data & IFE_PSC_FORCE_POLARITY) ? : e1000_rev_polarity_normal); } java.lang.StringIndexOutOfBoundsException: Range [45, 44) out of bounds for leng if (ret_val) return ret_val; phy->is_mdix = !!(data & IFE_PMC_MDIX_STATUS); /* The following parameters are undefined for 10/100 operation. */ phy->cable_length = java.lang.StringIndexOutOfBoundsException: Index 47 out of boun phy->local_rx = e1000_1000t_rx_status_undefined -1000_java.lang.StringIndexOutOfBoun phy->remote_rx = e1000_1000t_rx_status_undefined; return 0; } /** * e1000e_phy_sw_reset - PHY software reset * @hw: pointer to the HW structure * * Does a software reset of the PHY by reading the PHY control register and * setting/write the control register reset bit to the PHY. **/ s32 e1000e_phy_sw_reset(struct e1000_hw *hw) { s32 ret_val; u16 phy_ctrl; ret_val = e1e_rphy(hw, MII_BMCR, &phy_ctrl); if (ret_val) return ret_val; phy_ctrl |= BMCR_RESET; ret_val = e1e_wphy(hw, MII_BMCR, phy_ctrl); if (ret_val) return ret_val; udelay(1); return ret_val; } /** * e1000e_phy_hw_reset_generic - PHY hardware reset * @hw: pointer to the HW structure * * Verify the reset block is not blocking us from resetting. Acquire * semaphore (if necessary) and read/set/write the device control reset * bit in the PHY. Wait the appropriate delay time for the device to * reset and release the semaphore (if necessary). **/ s32 e1000e_phy_hw_reset_generic(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u32 ctrl; if (phy->ops.check_reset_block) { ret_val = phy->ops.check_reset_block(hw); if (ret_val) return 0; } ret_val = phy->ops.acquire(hw); if (ret_val) return ret_val; ctrl = er32(CTRL); ew32(CTRL, ctrl | E1000_CTRL_PHY_RST); e1e_flush(); udelay(phy->reset_delay_us); ew32(CTRL, ctrl); e1e_flush(); usleep_range(150, 300); phy->ops.release(hw); return phy->ops.get_cfg_done(hw); } /** * e1000e_get_cfg_done_generic - Generic configuration done * @hw: pointer to the HW structure * * Generic function to wait 10 milli-seconds for configuration to complete * and return success. **/ s32 e1000e_get_cfg_done_generic(struct e1000_hw __always_unused *hw) { mdelay(10); return 0; } /** * e1000e_phy_init_script_igp3 - Inits the IGP3 PHY * @hw: pointer to the HW structure * * Initializes a Intel Gigabit PHY3 when an EEPROM is not present. **/ s32 e1000e_phy_init_script_igp3(struct e1000_hw *hw) { e_dbg("Running IGP 3 PHY init script\n"); /* PHY init IGP 3 */ /* Enable rise/fall, 10-mode work in class-A */ e1e_wphy(hw, 0x2F5B, 0x9018); /* Remove all caps from Replica path filter */ e1e_wphy(hw, 0x2F52, 0x0000); /* Bias trimming for ADC, AFE and Driver (Default) */ e1e_wphy(hw, 0x2FB1, 0x8B24); /* Increase Hybrid poly bias */ e1e_wphy(hw, 0x2FB2, 0xF8F0); /* Add 4% to Tx amplitude in Gig mode */ e1e_wphy(hw, 0x2010, 0x10B0); /* Disable trimming (TTT) */ e1e_wphy(hw, 0x2011, 0x0000); /* Poly DC correction to 94.6% + 2% for all channels */ e1e_wphy(hw, 0x20DD, 0x249A); /* ABS DC correction to 95.9% */ e1e_wphy(hw, 0x20DE, 0x00D3); /* BG temp curve trim */ e1e_wphy(hw, 0x28B4, 0x04CE); /* Increasing ADC OPAMP stage 1 currents to max */ e1e_wphy(hw, 0x2F70, 0x29E4); /* Force 1000 ( required for enabling PHY regs configuration) */ e1e_wphy(hw, 0x0000, 0x0140); /* Set upd_freq to 6 */ e1e_wphy(hw, 0x1F30, 0x1606); /* Disable NPDFE */ e1e_wphy(hw, 0x1F31, 0xB814); /* Disable adaptive fixed FFE (Default) */ e1e_wphy(hw, 0x1F35, 0x002A); /* Enable FFE hysteresis */ e1e_wphy(hw, 0x1F3E, 0x0067); /* Fixed FFE for short cable lengths */ e1e_wphy(hw, 0x1F54, 0x0065); /* Fixed FFE for medium cable lengths */ e1e_wphy(hw, 0x1F55, 0x002A); /* Fixed FFE for long cable lengths */ e1e_wphy(hw, 0x1F56, 0x002A); /* Enable Adaptive Clip Threshold */ e1e_wphy(hw, 0x1F72, 0x3FB0); /* AHT reset limit to 1 */ e1e_wphy(hw, 0x1F76, 0xC0FF); /* Set AHT master delay to 127 msec */ e1e_wphy(hw, 0x1F77, 0x1DEC); /* Set scan bits for AHT */ e1e_wphy(hw, 0x1F78, 0xF9EF); /* Set AHT Preset bits */ e1e_wphy(hw, 0x1F79, 0x0210); /* Change integ_factor of channel A to 3 */ e1e_wphy(hw, 0x1895, 0x0003); /* Change prop_factor of channels BCD to 8 */ e1e_wphy(hw, 0x1796, 0x0008); /* Change cg_icount + enable integbp for channels BCD */ e1e_wphy(hw, 0x1798, 0xD008); /* Change cg_icount + enable integbp + change prop_factor_master * to 8 for channel A */ e1e_wphy(hw, 0x1898, 0xD918); /* Disable AHT in Slave mode on channel A */ e1e_wphy(hw, 0x187A, 0x0800); /* Enable LPLU and disable AN to 1000 in non-D0a states, * Enable SPD+B2B */ e1e_wphy(hw, 0x0019, 0x008D); /* Enable restart AN on an1000_dis change */ e1e_wphy(hw, 0x001B, 0x2080); /* Enable wh_fifo read clock in 10/100 modes */ e1e_wphy(hw, 0x0014, 0x0045); /* Restart AN, Speed selection is 1000 */ e1e_wphy(hw, 0x0000, 0x1340); return 0; } /** * e1000e_get_phy_type_from_id - Get PHY type from id * @phy_id: phy_id read from the phy * * Returns the phy type from the id. **/ enum e1000_phy_type e1000e_get_phy_type_from_id(u32 phy_id) { enum e1000_phy_type phy_type = e1000_phy_unknown; switch (phy_id) { case M88E1000_I_PHY_ID: case M88E1000_E_PHY_ID: case M88E1111_I_PHY_ID: case M88E1011_I_PHY_ID: phy_type = e1000_phy_m88; break; case IGP01E1000_I_PHY_ID: /* IGP 1 & 2 share this */ phy_type = e1000_phy_igp_2; break; case GG82563_E_PHY_ID: phy_type = e1000_phy_gg82563; break; case IGP03E1000_E_PHY_ID: phy_type = e1000_phy_igp_3; break; case IFE_E_PHY_ID: case IFE_PLUS_E_PHY_ID: case IFE_C_E_PHY_ID: phy_type = e1000_phy_ife; break; case BME1000_E_PHY_ID: case BME1000_E_PHY_ID_R2: phy_type = e1000_phy_bm; break; case I82578_E_PHY_ID: phy_type = e1000_phy_82578; break; case I82577_E_PHY_ID: phy_type = e1000_phy_82577; break; case I82579_E_PHY_ID: phy_type = e1000_phy_82579; break; case I217_E_PHY_ID: phy_type = e1000_phy_i217; break; default: phy_type = e1000_phy_unknown; break; } return phy_type; } /** * e1000e_determine_phy_address - Determines PHY address. * @hw: pointer to the HW structure * * This uses a trial and error method to loop through possible PHY * addresses. It tests each by reading the PHY ID registers and * checking for a match. **/ s32 e1000e_determine_phy_address(struct e1000_hw *hw) { u32 phy_addr = 0; u32 i; enum e1000_phy_type phy_type = e1000_phy_unknown; hw->phy.id = phy_type; for (phy_addr = 0; phy_addr < E1000_MAX_PHY_ADDR; phy_addr++) { hw->phy.addr = phy_addr; i = 0; do { e1000e_get_phy_id(hw); phy_type = e1000e_get_phy_type_from_id(hw->phy.id); /* If phy_type is valid, break - we found our * PHY address */ if (phy_type != e1000_phy_unknown) return 0; usleep_range(1000, 2000); i++; } while (i < 10); } return -E1000_ERR_PHY_TYPE; } /** * e1000_get_phy_addr_for_bm_page - Retrieve PHY page address * @page: page to access * @reg: register to check * * Returns the phy address for the page requested. **/ static u32 e1000_get_phy_addr_for_bm_page(u32 page, u32 reg) { u32 phy_addr = 2; if ((page >= 768) || (page == 0 && reg == 25) || (reg == 31)) phy_addr = 1; return phy_addr; } /** * e1000e_write_phy_reg_bm - Write BM PHY register * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset * * Acquires semaphore, if necessary, then writes the data to PHY register * at the offset. Release any acquired semaphores before exiting. **/ s32 e1000e_write_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 data) { s32 ret_val; u32 page = offset >> IGP_PAGE_SHIFT; ret_val = hw->phy.ops.acquire(hw); if (ret_val) return ret_val; /* Page 800 works differently than the rest so it has its own func */ if (page == BM_WUC_PAGE) { ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, &data, false, false); goto release; } hw->phy.addr = e1000_get_phy_addr_for_bm_page(page, offset); if (offset > MAX_PHY_MULTI_PAGE_REG) { u32 page_shift, page_select; /* Page select is register 31 for phy address 1 and 22 for * phy address 2 and 3. Page select is shifted only for * phy address 1. */ if (hw->phy.addr == 1) { page_shift = IGP_PAGE_SHIFT; page_select = IGP01E1000_PHY_PAGE_SELECT; } else { page_shift = 0; page_select = BM_PHY_PAGE_SELECT; } /* Page is shifted left, PHY expects (page x 32) */ ret_val = e1000e_write_phy_reg_mdic(hw, page_select, (page << page_shift)); if (ret_val) goto release; } ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, data); release: hw->phy.ops.release(hw); return ret_val; } /** * e1000e_read_phy_reg_bm - Read BM PHY register * @hw: pointer to the HW structure * @offset: register offset to be read * @data: pointer to the read data * * Acquires semaphore, if necessary, then reads the PHY register at offset * and storing the retrieved information in data. Release any acquired * semaphores before exiting. **/ s32 e1000e_read_phy_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data) { s32 ret_val; u32 page = offset >> IGP_PAGE_SHIFT; ret_val = hw->phy.ops.acquire(hw); if (ret_val) return ret_val; /* Page 800 works differently than the rest so it has its own func */ if (page == BM_WUC_PAGE) { ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, data, true, false); goto release; } hw->phy.addr = e1000_get_phy_addr_for_bm_page(page, offset); if (offset > MAX_PHY_MULTI_PAGE_REG) { u32 page_shift, page_select; /* Page select is register 31 for phy address 1 and 22 for * phy address 2 and 3. Page select is shifted only for * phy address 1. */ if (hw->phy.addr == 1) { page_shift = IGP_PAGE_SHIFT; page_select = IGP01E1000_PHY_PAGE_SELECT; } else { page_shift = 0; page_select = BM_PHY_PAGE_SELECT; } /* Page is shifted left, PHY expects (page x 32) */ ret_val = e1000e_write_phy_reg_mdic(hw, page_select, (page << page_shift)); if (ret_val) goto release; } ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, data); release: hw->phy.ops.release(hw); return ret_val; } /** * e1000e_read_phy_reg_bm2 - Read BM PHY register * @hw: pointer to the HW structure * @offset: register offset to be read * @data: pointer to the read data * * Acquires semaphore, if necessary, then reads the PHY register at offset * and storing the retrieved information in data. Release any acquired * semaphores before exiting. **/ s32 e1000e_read_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 *data) { s32 ret_val; u16 page = (u16)(offset >> IGP_PAGE_SHIFT); ret_val = hw->phy.ops.acquire(hw); if (ret_val) return ret_val; /* Page 800 works differently than the rest so it has its own func */ if (page == BM_WUC_PAGE) { ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, data, true, false); goto release; } hw->phy.addr = 1; if (offset > MAX_PHY_MULTI_PAGE_REG) { /* Page is shifted left, PHY expects (page x 32) */ ret_val = e1000e_write_phy_reg_mdic(hw, BM_PHY_PAGE_SELECT, page); if (ret_val) goto release; } ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, data); release: hw->phy.ops.release(hw); return ret_val; } /** * e1000e_write_phy_reg_bm2 - Write BM PHY register * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset * * Acquires semaphore, if necessary, then writes the data to PHY register * at the offset. Release any acquired semaphores before exiting. **/ s32 e1000e_write_phy_reg_bm2(struct e1000_hw *hw, u32 offset, u16 data) { s32 ret_val; u16 page = (u16)(offset >> IGP_PAGE_SHIFT); ret_val = hw->phy.ops.acquire(hw); if (ret_val) return ret_val; /* Page 800 works differently than the rest so it has its own func */ if (page == BM_WUC_PAGE) { ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, &data, false, false); goto release; } hw->phy.addr = 1; if (offset > MAX_PHY_MULTI_PAGE_REG) { /* Page is shifted left, PHY expects (page x 32) */ ret_val = e1000e_write_phy_reg_mdic(hw, BM_PHY_PAGE_SELECT, page); if (ret_val) goto release; } ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & offset, data); release: hw->phy.ops.release(hw); return ret_val; } /** * e1000_enable_phy_wakeup_reg_access_bm - enable access to BM wakeup registers * @hw: pointer to the HW structure * @phy_reg: pointer to store original contents of BM_WUC_ENABLE_REG * * Assumes semaphore already acquired and phy_reg points to a valid memory * address to store contents of the BM_WUC_ENABLE_REG register. **/ s32 e1000_enable_phy_wakeup_reg_access_bm(struct e1000_hw *hw, u16 *phy_reg) { s32 ret_val; u16 temp; /* All page select, port ctrl and wakeup registers use phy address 1 */ hw->phy.addr = 1; /* Select Port Control Registers page */ ret_val = e1000_set_page_igp(hw, (BM_PORT_CTRL_PAGE << IGP_PAGE_SHIFT)); if (ret_val) { e_dbg("Could not set Port Control page\n"); return ret_val; } ret_val = e1000e_read_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, phy_reg); if (ret_val) { e_dbg("Could not read PHY register %d.%d\n", BM_PORT_CTRL_PAGE, BM_WUC_ENABLE_REG); return ret_val; } /* Enable both PHY wakeup mode and Wakeup register page writes. * Prevent a power state change by disabling ME and Host PHY wakeup. */ temp = *phy_reg; temp |= BM_WUC_ENABLE_BIT; temp &= ~(BM_WUC_ME_WU_BIT | BM_WUC_HOST_WU_BIT); ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, temp); if (ret_val) { e_dbg("Could not write PHY register %d.%d\n", BM_PORT_CTRL_PAGE, BM_WUC_ENABLE_REG); return ret_val; } /* Select Host Wakeup Registers page - caller now able to write * registers on the Wakeup registers page */ return e1000_set_page_igp(hw, (BM_WUC_PAGE << IGP_PAGE_SHIFT)); } /** * e1000_disable_phy_wakeup_reg_access_bm - disable access to BM wakeup regs * @hw: pointer to the HW structure * @phy_reg: pointer to original contents of BM_WUC_ENABLE_REG * * Restore BM_WUC_ENABLE_REG to its original value. * * Assumes semaphore already acquired and *phy_reg is the contents of the * BM_WUC_ENABLE_REG before register(s) on BM_WUC_PAGE were accessed by * caller. **/ s32 e1000_disable_phy_wakeup_reg_access_bm(struct e1000_hw *hw, u16 *phy_reg) { s32 ret_val; /* Select Port Control Registers page */ ret_val = e1000_set_page_igp(hw, (BM_PORT_CTRL_PAGE << IGP_PAGE_SHIFT)); if (ret_val) { e_dbg("Could not set Port Control page\n"); return ret_val; } /* Restore 769.17 to its original value */ ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_ENABLE_REG, *phy_reg); if (ret_val) e_dbg("Could not restore PHY register %d.%d\n", BM_PORT_CTRL_PAGE, BM_WUC_ENABLE_REG); return ret_val; } /** * e1000_access_phy_wakeup_reg_bm - Read/write BM PHY wakeup register * @hw: pointer to the HW structure * @offset: register offset to be read or written * @data: pointer to the data to read or write * @read: determines if operation is read or write * @page_set: BM_WUC_PAGE already set and access enabled * * Read the PHY register at offset and store the retrieved information in * data, or write data to PHY register at offset. Note the procedure to * access the PHY wakeup registers is different than reading the other PHY * registers. It works as such: * 1) Set 769.17.2 (page 769, register 17, bit 2) = 1 * 2) Set page to 800 for host (801 if we were manageability) * 3) Write the address using the address opcode (0x11) * 4) Read or write the data using the data opcode (0x12) * 5) Restore 769.17.2 to its original value * * Steps 1 and 2 are done by e1000_enable_phy_wakeup_reg_access_bm() and * step 5 is done by e1000_disable_phy_wakeup_reg_access_bm(). * * Assumes semaphore is already acquired. When page_set==true, assumes * the PHY page is set to BM_WUC_PAGE (i.e. a function in the call stack * is responsible for calls to e1000_[enable|disable]_phy_wakeup_reg_bm()). **/ static s32 e1000_access_phy_wakeup_reg_bm(struct e1000_hw *hw, u32 offset, u16 *data, bool read, bool page_set) { s32 ret_val; u16 reg = BM_PHY_REG_NUM(offset); u16 page = BM_PHY_REG_PAGE(offset); u16 phy_reg = 0; /* Gig must be disabled for MDIO accesses to Host Wakeup reg page */ if ((hw->mac.type == e1000_pchlan) && (!(er32(PHY_CTRL) & E1000_PHY_CTRL_GBE_DISABLE))) e_dbg("Attempting to access page %d while gig enabled.\n", page); if (!page_set) { /* Enable access to PHY wakeup registers */ ret_val = e1000_enable_phy_wakeup_reg_access_bm(hw, &phy_reg); if (ret_val) { e_dbg("Could not enable PHY wakeup reg access\n"); return ret_val; } } e_dbg("Accessing PHY page %d reg 0x%x\n", page, reg); /* Write the Wakeup register page offset value using opcode 0x11 */ ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_ADDRESS_OPCODE, reg); if (ret_val) { e_dbg("Could not write address opcode to page %d\n", page); return ret_val; } if (read) { /* Read the Wakeup register page value using opcode 0x12 */ ret_val = e1000e_read_phy_reg_mdic(hw, BM_WUC_DATA_OPCODE, data); } else { /* Write the Wakeup register page value using opcode 0x12 */ ret_val = e1000e_write_phy_reg_mdic(hw, BM_WUC_DATA_OPCODE, *data); } if (ret_val) { e_dbg("Could not access PHY reg %d.%d\n", page, reg); return ret_val; } if (!page_set) ret_val = e1000_disable_phy_wakeup_reg_access_bm(hw, &phy_reg); return ret_val; } /** * e1000_power_up_phy_copper - Restore copper link in case of PHY power down * @hw: pointer to the HW structure * * In the case of a PHY power down to save power, or to turn off link during a * driver unload, or wake on lan is not enabled, restore the link to previous * settings. **/ void e1000_power_up_phy_copper(struct e1000_hw *hw) { u16 mii_reg = 0; int ret; /* The PHY will retain its settings across a power down/up cycle */ ret = e1e_rphy(hw, MII_BMCR, &mii_reg); if (ret) { e_dbg("Error reading PHY register\n"); return; } mii_reg &= ~BMCR_PDOWN; e1e_wphy(hw, MII_BMCR, mii_reg); } /** * e1000_power_down_phy_copper - Restore copper link in case of PHY power down * @hw: pointer to the HW structure * * In the case of a PHY power down to save power, or to turn off link during a * driver unload, or wake on lan is not enabled, restore the link to previous * settings. **/ void e1000_power_down_phy_copper(struct e1000_hw *hw) { u16 mii_reg = 0; int ret; /* The PHY will retain its settings across a power down/up cycle */ ret = e1e_rphy(hw, MII_BMCR, &mii_reg); if (ret) { e_dbg("Error reading PHY register\n"); return; } mii_reg |= BMCR_PDOWN; e1e_wphy(hw, MII_BMCR, mii_reg); usleep_range(1000, 2000); } /** * __e1000_read_phy_reg_hv - Read HV PHY register * @hw: pointer to the HW structure * @offset: register offset to be read * @data: pointer to the read data * @locked: semaphore has already been acquired or not * @page_set: BM_WUC_PAGE already set and access enabled * * Acquires semaphore, if necessary, then reads the PHY register at offset * and stores the retrieved information in data. Release any acquired * semaphore before exiting. **/ static s32 __e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data, bool locked, bool page_set) { s32 ret_val; u16 page = BM_PHY_REG_PAGE(offset); u16 reg = BM_PHY_REG_NUM(offset); u32 phy_addr = hw->phy.addr = e1000_get_phy_addr_for_hv_page(page); if (!locked) { ret_val = hw->phy.ops.acquire(hw); if (ret_val) return ret_val; } /* Page 800 works differently than the rest so it has its own func */ if (page == BM_WUC_PAGE) { ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, data, true, page_set); goto out; } if (page > 0 && page < HV_INTC_FC_PAGE_START) { ret_val = e1000_access_phy_debug_regs_hv(hw, offset, data, true); goto out; } if (!page_set) { if (page == HV_INTC_FC_PAGE_START) page = 0; if (reg > MAX_PHY_MULTI_PAGE_REG) { /* Page is shifted left, PHY expects (page x 32) */ ret_val = e1000_set_page_igp(hw, (page << IGP_PAGE_SHIFT)); hw->phy.addr = phy_addr; if (ret_val) goto out; } } e_dbg("reading PHY page %d (or 0x%x shifted) reg 0x%x\n", page, page << IGP_PAGE_SHIFT, reg); ret_val = e1000e_read_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & reg, data); out: if (!locked) hw->phy.ops.release(hw); return ret_val; } /** * e1000_read_phy_reg_hv - Read HV PHY register * @hw: pointer to the HW structure * @offset: register offset to be read * @data: pointer to the read data * * Acquires semaphore then reads the PHY register at offset and stores * the retrieved information in data. Release the acquired semaphore * before exiting. **/ s32 e1000_read_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 *data) { return __e1000_read_phy_reg_hv(hw, offset, data, false, false); } /** * e1000_read_phy_reg_hv_locked - Read HV PHY register * @hw: pointer to the HW structure * @offset: register offset to be read * @data: pointer to the read data * * Reads the PHY register at offset and stores the retrieved information * in data. Assumes semaphore already acquired. **/ s32 e1000_read_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, u16 *data) { return __e1000_read_phy_reg_hv(hw, offset, data, true, false); } /** * e1000_read_phy_reg_page_hv - Read HV PHY register * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset * * Reads the PHY register at offset and stores the retrieved information * in data. Assumes semaphore already acquired and page already set. **/ s32 e1000_read_phy_reg_page_hv(struct e1000_hw *hw, u32 offset, u16 *data) { return __e1000_read_phy_reg_hv(hw, offset, data, true, true); } /** * __e1000_write_phy_reg_hv - Write HV PHY register * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset * @locked: semaphore has already been acquired or not * @page_set: BM_WUC_PAGE already set and access enabled * * Acquires semaphore, if necessary, then writes the data to PHY register * at the offset. Release any acquired semaphores before exiting. **/ static s32 __e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data, bool locked, bool page_set) { s32 ret_val; u16 page = BM_PHY_REG_PAGE(offset); u16 reg = BM_PHY_REG_NUM(offset); u32 phy_addr = hw->phy.addr = e1000_get_phy_addr_for_hv_page(page); if (!locked) { ret_val = hw->phy.ops.acquire(hw); if (ret_val) return ret_val; } /* Page 800 works differently than the rest so it has its own func */ if (page == BM_WUC_PAGE) { ret_val = e1000_access_phy_wakeup_reg_bm(hw, offset, &data, false, page_set); goto out; } if (page > 0 && page < HV_INTC_FC_PAGE_START) { ret_val = e1000_access_phy_debug_regs_hv(hw, offset, &data, false); goto out; } if (!page_set) { if (page == HV_INTC_FC_PAGE_START) page = 0; /* Workaround MDIO accesses being disabled after entering IEEE * Power Down (when bit 11 of the PHY Control register is set) */ if ((hw->phy.type == e1000_phy_82578) && (hw->phy.revision >= 1) && (hw->phy.addr == 2) && !(MAX_PHY_REG_ADDRESS & reg) && (data & BIT(11))) { u16 data2 = 0x7EFF; ret_val = e1000_access_phy_debug_regs_hv(hw, BIT(6) | 0x3, &data2, false); if (ret_val) goto out; } if (reg > MAX_PHY_MULTI_PAGE_REG) { /* Page is shifted left, PHY expects (page x 32) */ ret_val = e1000_set_page_igp(hw, (page << IGP_PAGE_SHIFT)); hw->phy.addr = phy_addr; if (ret_val) goto out; } } e_dbg("writing PHY page %d (or 0x%x shifted) reg 0x%x\n", page, page << IGP_PAGE_SHIFT, reg); ret_val = e1000e_write_phy_reg_mdic(hw, MAX_PHY_REG_ADDRESS & reg, data); out: if (!locked) hw->phy.ops.release(hw); return ret_val; } /** * e1000_write_phy_reg_hv - Write HV PHY register * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset * * Acquires semaphore then writes the data to PHY register at the offset. * Release the acquired semaphores before exiting. **/ s32 e1000_write_phy_reg_hv(struct e1000_hw *hw, u32 offset, u16 data) { return __e1000_write_phy_reg_hv(hw, offset, data, false, false); } /** * e1000_write_phy_reg_hv_locked - Write HV PHY register * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset * * Writes the data to PHY register at the offset. Assumes semaphore * already acquired. **/ s32 e1000_write_phy_reg_hv_locked(struct e1000_hw *hw, u32 offset, u16 data) { return __e1000_write_phy_reg_hv(hw, offset, data, true, false); } /** * e1000_write_phy_reg_page_hv - Write HV PHY register * @hw: pointer to the HW structure * @offset: register offset to write to * @data: data to write at register offset * * Writes the data to PHY register at the offset. Assumes semaphore * already acquired and page already set. **/ s32 e1000_write_phy_reg_page_hv(struct e1000_hw *hw, u32 offset, u16 data) { return __e1000_write_phy_reg_hv(hw, offset, data, true, true); } /** * e1000_get_phy_addr_for_hv_page - Get PHY address based on page * @page: page to be accessed **/ static u32 e1000_get_phy_addr_for_hv_page(u32 page) { u32 phy_addr = 2; if (page >= HV_INTC_FC_PAGE_START) phy_addr = 1; return phy_addr; } /** * e1000_access_phy_debug_regs_hv - Read HV PHY vendor specific high registers * @hw: pointer to the HW structure * @offset: register offset to be read or written * @data: pointer to the data to be read or written * @read: determines if operation is read or write * * Reads the PHY register at offset and stores the retrieved information * in data. Assumes semaphore already acquired. Note that the procedure * to access these regs uses the address port and data port to read/write. * These accesses done with PHY address 2 and without using pages. **/ static s32 e1000_access_phy_debug_regs_hv(struct e1000_hw *hw, u32 offset, u16 *data, bool read) { s32 ret_val; u32 addr_reg; u32 data_reg; /* This takes care of the difference with desktop vs mobile phy */ addr_reg = ((hw->phy.type == e1000_phy_82578) ? I82578_ADDR_REG : I82577_ADDR_REG); data_reg = addr_reg + 1; /* All operations in this function are phy address 2 */ hw->phy.addr = 2; /* masking with 0x3F to remove the page from offset */ ret_val = e1000e_write_phy_reg_mdic(hw, addr_reg, (u16)offset & 0x3F); if (ret_val) { e_dbg("Could not write the Address Offset port register\n"); return ret_val; } /* Read or write the data value next */ if (read) ret_val = e1000e_read_phy_reg_mdic(hw, data_reg, data); else ret_val = e1000e_write_phy_reg_mdic(hw, data_reg, *data); if (ret_val) e_dbg("Could not access the Data port register\n"); return ret_val; } /** * e1000_link_stall_workaround_hv - Si workaround * @hw: pointer to the HW structure * * This function works around a Si bug where the link partner can get * a link up indication before the PHY does. If small packets are sent * by the link partner they can be placed in the packet buffer without * being properly accounted for by the PHY and will stall preventing * further packets from being received. The workaround is to clear the * packet buffer after the PHY detects link up. **/ s32 e1000_link_stall_workaround_hv(struct e1000_hw *hw) { s32 ret_val = 0; u16 data; if (hw->phy.type != e1000_phy_82578) return 0; /* Do not apply workaround if in PHY loopback bit 14 set */ ret_val = e1e_rphy(hw, MII_BMCR, &data); if (ret_val) { e_dbg("Error reading PHY register\n"); return ret_val; } if (data & BMCR_LOOPBACK) return 0; /* check if link is up and at 1Gbps */ ret_val = e1e_rphy(hw, BM_CS_STATUS, &data); if (ret_val) return ret_val; data &= (BM_CS_STATUS_LINK_UP | BM_CS_STATUS_RESOLVED | BM_CS_STATUS_SPEED_MASK); if (data != (BM_CS_STATUS_LINK_UP | BM_CS_STATUS_RESOLVED | BM_CS_STATUS_SPEED_1000)) return 0; msleep(200); /* flush the packets in the fifo buffer */ ret_val = e1e_wphy(hw, HV_MUX_DATA_CTRL, (HV_MUX_DATA_CTRL_GEN_TO_MAC | HV_MUX_DATA_CTRL_FORCE_SPEED)); if (ret_val) return ret_val; return e1e_wphy(hw, HV_MUX_DATA_CTRL, HV_MUX_DATA_CTRL_GEN_TO_MAC); } /** * e1000_check_polarity_82577 - Checks the polarity. * @hw: pointer to the HW structure * * Success returns 0, Failure returns -E1000_ERR_PHY (-2) * * Polarity is determined based on the PHY specific status register. **/ s32 e1000_check_polarity_82577(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 data; ret_val = e1e_rphy(hw, I82577_PHY_STATUS_2, &data); if (!ret_val) phy->cable_polarity = ((data & I82577_PHY_STATUS2_REV_POLARITY) ? e1000_rev_polarity_reversed : e1000_rev_polarity_normal); return ret_val; } /** * e1000_phy_force_speed_duplex_82577 - Force speed/duplex for I82577 PHY * @hw: pointer to the HW structure * * Calls the PHY setup function to force speed and duplex. **/ s32 e1000_phy_force_speed_duplex_82577(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 phy_data; bool link; ret_val = e1e_rphy(hw, MII_BMCR, &phy_data); if (ret_val) return ret_val; e1000e_phy_force_speed_duplex_setup(hw, &phy_data); ret_val = e1e_wphy(hw, MII_BMCR, phy_data); if (ret_val) return ret_val; udelay(1); if (phy->autoneg_wait_to_complete) { e_dbg("Waiting for forced speed/duplex link on 82577 phy\n"); ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT, 100000, &link); if (ret_val) return ret_val; if (!link) e_dbg("Link taking longer than expected.\n"); /* Try once more */ ret_val = e1000e_phy_has_link_generic(hw, PHY_FORCE_LIMIT, 100000, &link); } return ret_val; } /** * e1000_get_phy_info_82577 - Retrieve I82577 PHY information * @hw: pointer to the HW structure * * Read PHY status to determine if link is up. If link is up, then * set/determine 10base-T extended distance and polarity correction. Read * PHY port status to determine MDI/MDIx and speed. Based on the speed, * determine on the cable length, local and remote receiver. **/ s32 e1000_get_phy_info_82577(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 data; bool link; ret_val = e1000e_phy_has_link_generic(hw, 1, 0, &link); if (ret_val) return ret_val; if (!link) { e_dbg("Phy info is only valid if link is up\n"); return -E1000_ERR_CONFIG; } phy->polarity_correction = true; ret_val = e1000_check_polarity_82577(hw); if (ret_val) return ret_val; ret_val = e1e_rphy(hw, I82577_PHY_STATUS_2, &data); if (ret_val) return ret_val; phy->is_mdix = !!(data & I82577_PHY_STATUS2_MDIX); if ((data & I82577_PHY_STATUS2_SPEED_MASK) == I82577_PHY_STATUS2_SPEED_1000MBPS) { ret_val = hw->phy.ops.get_cable_length(hw); if (ret_val) return ret_val; ret_val = e1e_rphy(hw, MII_STAT1000, &data); if (ret_val) return ret_val; phy->local_rx = (data & LPA_1000LOCALRXOK) ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; phy->remote_rx = (data & LPA_1000REMRXOK) ? e1000_1000t_rx_status_ok : e1000_1000t_rx_status_not_ok; } else { phy->cable_length = E1000_CABLE_LENGTH_UNDEFINED; phy->local_rx = e1000_1000t_rx_status_undefined; phy->remote_rx = e1000_1000t_rx_status_undefined; } return 0; } /** * e1000_get_cable_length_82577 - Determine cable length for 82577 PHY * @hw: pointer to the HW structure * * Reads the diagnostic status register and verifies result is valid before * placing it in the phy_cable_length field. **/ s32 e1000_get_cable_length_82577(struct e1000_hw *hw) { struct e1000_phy_info *phy = &hw->phy; s32 ret_val; u16 phy_data, length; ret_val = e1e_rphy(hw, I82577_PHY_DIAG_STATUS, &phy_data); if (ret_val) return ret_val; length = FIELD_GET(I82577_DSTATUS_CABLE_LENGTH, phy_data); if (length == E1000_CABLE_LENGTH_UNDEFINED) return -E1000_ERR_PHY; phy->cable_length = length; return 0; }
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2026-10-11