--- /dev/null
+/*
+ * Copyright(c) 2007 Atheros Corporation. All rights reserved.
+ *
+ * Derived from Intel e1000 driver
+ * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along with
+ * this program; if not, write to the Free Software Foundation, Inc., 59
+ * Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ */
+#include <linux/pci.h>
+#include <linux/delay.h>
+#include <linux/mii.h>
+#include <linux/crc32.h>
+
+#include "atl1c.h"
+
+/*
+ * check_eeprom_exist
+ * return 1 if eeprom exist
+ */
+int atl1c_check_eeprom_exist(struct atl1c_hw *hw)
+{
+ u32 data;
+
+ AT_READ_REG(hw, REG_TWSI_DEBUG, &data);
+ if (data & TWSI_DEBUG_DEV_EXIST)
+ return 1;
+
+ AT_READ_REG(hw, REG_MASTER_CTRL, &data);
+ if (data & MASTER_CTRL_OTP_SEL)
+ return 1;
+ return 0;
+}
+
+void atl1c_hw_set_mac_addr(struct atl1c_hw *hw, u8 *mac_addr)
+{
+ u32 value;
+ /*
+ * 00-0B-6A-F6-00-DC
+ * 0: 6AF600DC 1: 000B
+ * low dword
+ */
+ value = mac_addr[2] << 24 |
+ mac_addr[3] << 16 |
+ mac_addr[4] << 8 |
+ mac_addr[5];
+ AT_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 0, value);
+ /* hight dword */
+ value = mac_addr[0] << 8 |
+ mac_addr[1];
+ AT_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 1, value);
+}
+
+/* read mac address from hardware register */
+static bool atl1c_read_current_addr(struct atl1c_hw *hw, u8 *eth_addr)
+{
+ u32 addr[2];
+
+ AT_READ_REG(hw, REG_MAC_STA_ADDR, &addr[0]);
+ AT_READ_REG(hw, REG_MAC_STA_ADDR + 4, &addr[1]);
+
+ *(u32 *) ð_addr[2] = htonl(addr[0]);
+ *(u16 *) ð_addr[0] = htons((u16)addr[1]);
+
+ return is_valid_ether_addr(eth_addr);
+}
+
+/*
+ * atl1c_get_permanent_address
+ * return 0 if get valid mac address,
+ */
+static int atl1c_get_permanent_address(struct atl1c_hw *hw)
+{
+ u32 i;
+ u32 otp_ctrl_data;
+ u32 twsi_ctrl_data;
+ u16 phy_data;
+ bool raise_vol = false;
+
+ /* MAC-address from BIOS is the 1st priority */
+ if (atl1c_read_current_addr(hw, hw->perm_mac_addr))
+ return 0;
+
+ /* init */
+ AT_READ_REG(hw, REG_OTP_CTRL, &otp_ctrl_data);
+ if (atl1c_check_eeprom_exist(hw)) {
+ if (hw->nic_type == athr_l1c || hw->nic_type == athr_l2c) {
+ /* Enable OTP CLK */
+ if (!(otp_ctrl_data & OTP_CTRL_CLK_EN)) {
+ otp_ctrl_data |= OTP_CTRL_CLK_EN;
+ AT_WRITE_REG(hw, REG_OTP_CTRL, otp_ctrl_data);
+ AT_WRITE_FLUSH(hw);
+ msleep(1);
+ }
+ }
+ /* raise voltage temporally for l2cb */
+ if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l2c_b2) {
+ atl1c_read_phy_dbg(hw, MIIDBG_ANACTRL, &phy_data);
+ phy_data &= ~ANACTRL_HB_EN;
+ atl1c_write_phy_dbg(hw, MIIDBG_ANACTRL, phy_data);
+ atl1c_read_phy_dbg(hw, MIIDBG_VOLT_CTRL, &phy_data);
+ phy_data |= VOLT_CTRL_SWLOWEST;
+ atl1c_write_phy_dbg(hw, MIIDBG_VOLT_CTRL, phy_data);
+ udelay(20);
+ raise_vol = true;
+ }
+
+ AT_READ_REG(hw, REG_TWSI_CTRL, &twsi_ctrl_data);
+ twsi_ctrl_data |= TWSI_CTRL_SW_LDSTART;
+ AT_WRITE_REG(hw, REG_TWSI_CTRL, twsi_ctrl_data);
+ for (i = 0; i < AT_TWSI_EEPROM_TIMEOUT; i++) {
+ msleep(10);
+ AT_READ_REG(hw, REG_TWSI_CTRL, &twsi_ctrl_data);
+ if ((twsi_ctrl_data & TWSI_CTRL_SW_LDSTART) == 0)
+ break;
+ }
+ if (i >= AT_TWSI_EEPROM_TIMEOUT)
+ return -1;
+ }
+ /* Disable OTP_CLK */
+ if ((hw->nic_type == athr_l1c || hw->nic_type == athr_l2c)) {
+ otp_ctrl_data &= ~OTP_CTRL_CLK_EN;
+ AT_WRITE_REG(hw, REG_OTP_CTRL, otp_ctrl_data);
+ msleep(1);
+ }
+ if (raise_vol) {
+ atl1c_read_phy_dbg(hw, MIIDBG_ANACTRL, &phy_data);
+ phy_data |= ANACTRL_HB_EN;
+ atl1c_write_phy_dbg(hw, MIIDBG_ANACTRL, phy_data);
+ atl1c_read_phy_dbg(hw, MIIDBG_VOLT_CTRL, &phy_data);
+ phy_data &= ~VOLT_CTRL_SWLOWEST;
+ atl1c_write_phy_dbg(hw, MIIDBG_VOLT_CTRL, phy_data);
+ udelay(20);
+ }
+
+ if (atl1c_read_current_addr(hw, hw->perm_mac_addr))
+ return 0;
+
+ return -1;
+}
+
+bool atl1c_read_eeprom(struct atl1c_hw *hw, u32 offset, u32 *p_value)
+{
+ int i;
+ bool ret = false;
+ u32 otp_ctrl_data;
+ u32 control;
+ u32 data;
+
+ if (offset & 3)
+ return ret; /* address do not align */
+
+ AT_READ_REG(hw, REG_OTP_CTRL, &otp_ctrl_data);
+ if (!(otp_ctrl_data & OTP_CTRL_CLK_EN))
+ AT_WRITE_REG(hw, REG_OTP_CTRL,
+ (otp_ctrl_data | OTP_CTRL_CLK_EN));
+
+ AT_WRITE_REG(hw, REG_EEPROM_DATA_LO, 0);
+ control = (offset & EEPROM_CTRL_ADDR_MASK) << EEPROM_CTRL_ADDR_SHIFT;
+ AT_WRITE_REG(hw, REG_EEPROM_CTRL, control);
+
+ for (i = 0; i < 10; i++) {
+ udelay(100);
+ AT_READ_REG(hw, REG_EEPROM_CTRL, &control);
+ if (control & EEPROM_CTRL_RW)
+ break;
+ }
+ if (control & EEPROM_CTRL_RW) {
+ AT_READ_REG(hw, REG_EEPROM_CTRL, &data);
+ AT_READ_REG(hw, REG_EEPROM_DATA_LO, p_value);
+ data = data & 0xFFFF;
+ *p_value = swab32((data << 16) | (*p_value >> 16));
+ ret = true;
+ }
+ if (!(otp_ctrl_data & OTP_CTRL_CLK_EN))
+ AT_WRITE_REG(hw, REG_OTP_CTRL, otp_ctrl_data);
+
+ return ret;
+}
+/*
+ * Reads the adapter's MAC address from the EEPROM
+ *
+ * hw - Struct containing variables accessed by shared code
+ */
+int atl1c_read_mac_addr(struct atl1c_hw *hw)
+{
+ int err = 0;
+
+ err = atl1c_get_permanent_address(hw);
+ if (err)
+ eth_random_addr(hw->perm_mac_addr);
+
+ memcpy(hw->mac_addr, hw->perm_mac_addr, sizeof(hw->perm_mac_addr));
+ return err;
+}
+
+/*
+ * atl1c_hash_mc_addr
+ * purpose
+ * set hash value for a multicast address
+ * hash calcu processing :
+ * 1. calcu 32bit CRC for multicast address
+ * 2. reverse crc with MSB to LSB
+ */
+u32 atl1c_hash_mc_addr(struct atl1c_hw *hw, u8 *mc_addr)
+{
+ u32 crc32;
+ u32 value = 0;
+ int i;
+
+ crc32 = ether_crc_le(6, mc_addr);
+ for (i = 0; i < 32; i++)
+ value |= (((crc32 >> i) & 1) << (31 - i));
+
+ return value;
+}
+
+/*
+ * Sets the bit in the multicast table corresponding to the hash value.
+ * hw - Struct containing variables accessed by shared code
+ * hash_value - Multicast address hash value
+ */
+void atl1c_hash_set(struct atl1c_hw *hw, u32 hash_value)
+{
+ u32 hash_bit, hash_reg;
+ u32 mta;
+
+ /*
+ * The HASH Table is a register array of 2 32-bit registers.
+ * It is treated like an array of 64 bits. We want to set
+ * bit BitArray[hash_value]. So we figure out what register
+ * the bit is in, read it, OR in the new bit, then write
+ * back the new value. The register is determined by the
+ * upper bit of the hash value and the bit within that
+ * register are determined by the lower 5 bits of the value.
+ */
+ hash_reg = (hash_value >> 31) & 0x1;
+ hash_bit = (hash_value >> 26) & 0x1F;
+
+ mta = AT_READ_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg);
+
+ mta |= (1 << hash_bit);
+
+ AT_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, hash_reg, mta);
+}
+
+/*
+ * wait mdio module be idle
+ * return true: idle
+ * false: still busy
+ */
+bool atl1c_wait_mdio_idle(struct atl1c_hw *hw)
+{
+ u32 val;
+ int i;
+
+ for (i = 0; i < MDIO_MAX_AC_TO; i++) {
+ AT_READ_REG(hw, REG_MDIO_CTRL, &val);
+ if (!(val & (MDIO_CTRL_BUSY | MDIO_CTRL_START)))
+ break;
+ udelay(10);
+ }
+
+ return i != MDIO_MAX_AC_TO;
+}
+
+void atl1c_stop_phy_polling(struct atl1c_hw *hw)
+{
+ if (!(hw->ctrl_flags & ATL1C_FPGA_VERSION))
+ return;
+
+ AT_WRITE_REG(hw, REG_MDIO_CTRL, 0);
+ atl1c_wait_mdio_idle(hw);
+}
+
+void atl1c_start_phy_polling(struct atl1c_hw *hw, u16 clk_sel)
+{
+ u32 val;
+
+ if (!(hw->ctrl_flags & ATL1C_FPGA_VERSION))
+ return;
+
+ val = MDIO_CTRL_SPRES_PRMBL |
+ FIELDX(MDIO_CTRL_CLK_SEL, clk_sel) |
+ FIELDX(MDIO_CTRL_REG, 1) |
+ MDIO_CTRL_START |
+ MDIO_CTRL_OP_READ;
+ AT_WRITE_REG(hw, REG_MDIO_CTRL, val);
+ atl1c_wait_mdio_idle(hw);
+ val |= MDIO_CTRL_AP_EN;
+ val &= ~MDIO_CTRL_START;
+ AT_WRITE_REG(hw, REG_MDIO_CTRL, val);
+ udelay(30);
+}
+
+
+/*
+ * atl1c_read_phy_core
+ * core function to read register in PHY via MDIO control regsiter.
+ * ext: extension register (see IEEE 802.3)
+ * dev: device address (see IEEE 802.3 DEVAD, PRTAD is fixed to 0)
+ * reg: reg to read
+ */
+int atl1c_read_phy_core(struct atl1c_hw *hw, bool ext, u8 dev,
+ u16 reg, u16 *phy_data)
+{
+ u32 val;
+ u16 clk_sel = MDIO_CTRL_CLK_25_4;
+
+ atl1c_stop_phy_polling(hw);
+
+ *phy_data = 0;
+
+ /* only l2c_b2 & l1d_2 could use slow clock */
+ if ((hw->nic_type == athr_l2c_b2 || hw->nic_type == athr_l1d_2) &&
+ hw->hibernate)
+ clk_sel = MDIO_CTRL_CLK_25_128;
+ if (ext) {
+ val = FIELDX(MDIO_EXTN_DEVAD, dev) | FIELDX(MDIO_EXTN_REG, reg);
+ AT_WRITE_REG(hw, REG_MDIO_EXTN, val);
+ val = MDIO_CTRL_SPRES_PRMBL |
+ FIELDX(MDIO_CTRL_CLK_SEL, clk_sel) |
+ MDIO_CTRL_START |
+ MDIO_CTRL_MODE_EXT |
+ MDIO_CTRL_OP_READ;
+ } else {
+ val = MDIO_CTRL_SPRES_PRMBL |
+ FIELDX(MDIO_CTRL_CLK_SEL, clk_sel) |
+ FIELDX(MDIO_CTRL_REG, reg) |
+ MDIO_CTRL_START |
+ MDIO_CTRL_OP_READ;
+ }
+ AT_WRITE_REG(hw, REG_MDIO_CTRL, val);
+
+ if (!atl1c_wait_mdio_idle(hw))
+ return -1;
+
+ AT_READ_REG(hw, REG_MDIO_CTRL, &val);
+ *phy_data = (u16)FIELD_GETX(val, MDIO_CTRL_DATA);
+
+ atl1c_start_phy_polling(hw, clk_sel);
+
+ return 0;
+}
+
+/*
+ * atl1c_write_phy_core
+ * core function to write to register in PHY via MDIO control register.
+ * ext: extension register (see IEEE 802.3)
+ * dev: device address (see IEEE 802.3 DEVAD, PRTAD is fixed to 0)
+ * reg: reg to write
+ */
+int atl1c_write_phy_core(struct atl1c_hw *hw, bool ext, u8 dev,
+ u16 reg, u16 phy_data)
+{
+ u32 val;
+ u16 clk_sel = MDIO_CTRL_CLK_25_4;
+
+ atl1c_stop_phy_polling(hw);
+
+
+ /* only l2c_b2 & l1d_2 could use slow clock */
+ if ((hw->nic_type == athr_l2c_b2 || hw->nic_type == athr_l1d_2) &&
+ hw->hibernate)
+ clk_sel = MDIO_CTRL_CLK_25_128;
+
+ if (ext) {
+ val = FIELDX(MDIO_EXTN_DEVAD, dev) | FIELDX(MDIO_EXTN_REG, reg);
+ AT_WRITE_REG(hw, REG_MDIO_EXTN, val);
+ val = MDIO_CTRL_SPRES_PRMBL |
+ FIELDX(MDIO_CTRL_CLK_SEL, clk_sel) |
+ FIELDX(MDIO_CTRL_DATA, phy_data) |
+ MDIO_CTRL_START |
+ MDIO_CTRL_MODE_EXT;
+ } else {
+ val = MDIO_CTRL_SPRES_PRMBL |
+ FIELDX(MDIO_CTRL_CLK_SEL, clk_sel) |
+ FIELDX(MDIO_CTRL_DATA, phy_data) |
+ FIELDX(MDIO_CTRL_REG, reg) |
+ MDIO_CTRL_START;
+ }
+ AT_WRITE_REG(hw, REG_MDIO_CTRL, val);
+
+ if (!atl1c_wait_mdio_idle(hw))
+ return -1;
+
+ atl1c_start_phy_polling(hw, clk_sel);
+
+ return 0;
+}
+
+/*
+ * Reads the value from a PHY register
+ * hw - Struct containing variables accessed by shared code
+ * reg_addr - address of the PHY register to read
+ */
+int atl1c_read_phy_reg(struct atl1c_hw *hw, u16 reg_addr, u16 *phy_data)
+{
+ return atl1c_read_phy_core(hw, false, 0, reg_addr, phy_data);
+}
+
+/*
+ * Writes a value to a PHY register
+ * hw - Struct containing variables accessed by shared code
+ * reg_addr - address of the PHY register to write
+ * data - data to write to the PHY
+ */
+int atl1c_write_phy_reg(struct atl1c_hw *hw, u32 reg_addr, u16 phy_data)
+{
+ return atl1c_write_phy_core(hw, false, 0, reg_addr, phy_data);
+}
+
+/* read from PHY extension register */
+int atl1c_read_phy_ext(struct atl1c_hw *hw, u8 dev_addr,
+ u16 reg_addr, u16 *phy_data)
+{
+ return atl1c_read_phy_core(hw, true, dev_addr, reg_addr, phy_data);
+}
+
+/* write to PHY extension register */
+int atl1c_write_phy_ext(struct atl1c_hw *hw, u8 dev_addr,
+ u16 reg_addr, u16 phy_data)
+{
+ return atl1c_write_phy_core(hw, true, dev_addr, reg_addr, phy_data);
+}
+
+int atl1c_read_phy_dbg(struct atl1c_hw *hw, u16 reg_addr, u16 *phy_data)
+{
+ int err;
+
+ err = atl1c_write_phy_reg(hw, MII_DBG_ADDR, reg_addr);
+ if (unlikely(err))
+ return err;
+ else
+ err = atl1c_read_phy_reg(hw, MII_DBG_DATA, phy_data);
+
+ return err;
+}
+
+int atl1c_write_phy_dbg(struct atl1c_hw *hw, u16 reg_addr, u16 phy_data)
+{
+ int err;
+
+ err = atl1c_write_phy_reg(hw, MII_DBG_ADDR, reg_addr);
+ if (unlikely(err))
+ return err;
+ else
+ err = atl1c_write_phy_reg(hw, MII_DBG_DATA, phy_data);
+
+ return err;
+}
+
+/*
+ * Configures PHY autoneg and flow control advertisement settings
+ *
+ * hw - Struct containing variables accessed by shared code
+ */
+static int atl1c_phy_setup_adv(struct atl1c_hw *hw)
+{
+ u16 mii_adv_data = ADVERTISE_DEFAULT_CAP & ~ADVERTISE_ALL;
+ u16 mii_giga_ctrl_data = GIGA_CR_1000T_DEFAULT_CAP &
+ ~GIGA_CR_1000T_SPEED_MASK;
+
+ if (hw->autoneg_advertised & ADVERTISED_10baseT_Half)
+ mii_adv_data |= ADVERTISE_10HALF;
+ if (hw->autoneg_advertised & ADVERTISED_10baseT_Full)
+ mii_adv_data |= ADVERTISE_10FULL;
+ if (hw->autoneg_advertised & ADVERTISED_100baseT_Half)
+ mii_adv_data |= ADVERTISE_100HALF;
+ if (hw->autoneg_advertised & ADVERTISED_100baseT_Full)
+ mii_adv_data |= ADVERTISE_100FULL;
+
+ if (hw->autoneg_advertised & ADVERTISED_Autoneg)
+ mii_adv_data |= ADVERTISE_10HALF | ADVERTISE_10FULL |
+ ADVERTISE_100HALF | ADVERTISE_100FULL;
+
+ if (hw->link_cap_flags & ATL1C_LINK_CAP_1000M) {
+ if (hw->autoneg_advertised & ADVERTISED_1000baseT_Half)
+ mii_giga_ctrl_data |= ADVERTISE_1000HALF;
+ if (hw->autoneg_advertised & ADVERTISED_1000baseT_Full)
+ mii_giga_ctrl_data |= ADVERTISE_1000FULL;
+ if (hw->autoneg_advertised & ADVERTISED_Autoneg)
+ mii_giga_ctrl_data |= ADVERTISE_1000HALF |
+ ADVERTISE_1000FULL;
+ }
+
+ if (atl1c_write_phy_reg(hw, MII_ADVERTISE, mii_adv_data) != 0 ||
+ atl1c_write_phy_reg(hw, MII_CTRL1000, mii_giga_ctrl_data) != 0)
+ return -1;
+ return 0;
+}
+
+void atl1c_phy_disable(struct atl1c_hw *hw)
+{
+ atl1c_power_saving(hw, 0);
+}
+
+
+int atl1c_phy_reset(struct atl1c_hw *hw)
+{
+ struct atl1c_adapter *adapter = hw->adapter;
+ struct pci_dev *pdev = adapter->pdev;
+ u16 phy_data;
+ u32 phy_ctrl_data, lpi_ctrl;
+ int err;
+
+ /* reset PHY core */
+ AT_READ_REG(hw, REG_GPHY_CTRL, &phy_ctrl_data);
+ phy_ctrl_data &= ~(GPHY_CTRL_EXT_RESET | GPHY_CTRL_PHY_IDDQ |
+ GPHY_CTRL_GATE_25M_EN | GPHY_CTRL_PWDOWN_HW | GPHY_CTRL_CLS);
+ phy_ctrl_data |= GPHY_CTRL_SEL_ANA_RST;
+ if (!(hw->ctrl_flags & ATL1C_HIB_DISABLE))
+ phy_ctrl_data |= (GPHY_CTRL_HIB_EN | GPHY_CTRL_HIB_PULSE);
+ else
+ phy_ctrl_data &= ~(GPHY_CTRL_HIB_EN | GPHY_CTRL_HIB_PULSE);
+ AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl_data);
+ AT_WRITE_FLUSH(hw);
+ udelay(10);
+ AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl_data | GPHY_CTRL_EXT_RESET);
+ AT_WRITE_FLUSH(hw);
+ udelay(10 * GPHY_CTRL_EXT_RST_TO); /* delay 800us */
+
+ /* switch clock */
+ if (hw->nic_type == athr_l2c_b) {
+ atl1c_read_phy_dbg(hw, MIIDBG_CFGLPSPD, &phy_data);
+ atl1c_write_phy_dbg(hw, MIIDBG_CFGLPSPD,
+ phy_data & ~CFGLPSPD_RSTCNT_CLK125SW);
+ }
+
+ /* tx-half amplitude issue fix */
+ if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l2c_b2) {
+ atl1c_read_phy_dbg(hw, MIIDBG_CABLE1TH_DET, &phy_data);
+ phy_data |= CABLE1TH_DET_EN;
+ atl1c_write_phy_dbg(hw, MIIDBG_CABLE1TH_DET, phy_data);
+ }
+
+ /* clear bit3 of dbgport 3B to lower voltage */
+ if (!(hw->ctrl_flags & ATL1C_HIB_DISABLE)) {
+ if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l2c_b2) {
+ atl1c_read_phy_dbg(hw, MIIDBG_VOLT_CTRL, &phy_data);
+ phy_data &= ~VOLT_CTRL_SWLOWEST;
+ atl1c_write_phy_dbg(hw, MIIDBG_VOLT_CTRL, phy_data);
+ }
+ /* power saving config */
+ phy_data =
+ hw->nic_type == athr_l1d || hw->nic_type == athr_l1d_2 ?
+ L1D_LEGCYPS_DEF : L1C_LEGCYPS_DEF;
+ atl1c_write_phy_dbg(hw, MIIDBG_LEGCYPS, phy_data);
+ /* hib */
+ atl1c_write_phy_dbg(hw, MIIDBG_SYSMODCTRL,
+ SYSMODCTRL_IECHOADJ_DEF);
+ } else {
+ /* disable pws */
+ atl1c_read_phy_dbg(hw, MIIDBG_LEGCYPS, &phy_data);
+ atl1c_write_phy_dbg(hw, MIIDBG_LEGCYPS,
+ phy_data & ~LEGCYPS_EN);
+ /* disable hibernate */
+ atl1c_read_phy_dbg(hw, MIIDBG_HIBNEG, &phy_data);
+ atl1c_write_phy_dbg(hw, MIIDBG_HIBNEG,
+ phy_data & HIBNEG_PSHIB_EN);
+ }
+ /* disable AZ(EEE) by default */
+ if (hw->nic_type == athr_l1d || hw->nic_type == athr_l1d_2 ||
+ hw->nic_type == athr_l2c_b2) {
+ AT_READ_REG(hw, REG_LPI_CTRL, &lpi_ctrl);
+ AT_WRITE_REG(hw, REG_LPI_CTRL, lpi_ctrl & ~LPI_CTRL_EN);
+ atl1c_write_phy_ext(hw, MIIEXT_ANEG, MIIEXT_LOCAL_EEEADV, 0);
+ atl1c_write_phy_ext(hw, MIIEXT_PCS, MIIEXT_CLDCTRL3,
+ L2CB_CLDCTRL3);
+ }
+
+ /* other debug port to set */
+ atl1c_write_phy_dbg(hw, MIIDBG_ANACTRL, ANACTRL_DEF);
+ atl1c_write_phy_dbg(hw, MIIDBG_SRDSYSMOD, SRDSYSMOD_DEF);
+ atl1c_write_phy_dbg(hw, MIIDBG_TST10BTCFG, TST10BTCFG_DEF);
+ /* UNH-IOL test issue, set bit7 */
+ atl1c_write_phy_dbg(hw, MIIDBG_TST100BTCFG,
+ TST100BTCFG_DEF | TST100BTCFG_LITCH_EN);
+
+ /* set phy interrupt mask */
+ phy_data = IER_LINK_UP | IER_LINK_DOWN;
+ err = atl1c_write_phy_reg(hw, MII_IER, phy_data);
+ if (err) {
+ if (netif_msg_hw(adapter))
+ dev_err(&pdev->dev,
+ "Error enable PHY linkChange Interrupt\n");
+ return err;
+ }
+ return 0;
+}
+
+int atl1c_phy_init(struct atl1c_hw *hw)
+{
+ struct atl1c_adapter *adapter = hw->adapter;
+ struct pci_dev *pdev = adapter->pdev;
+ int ret_val;
+ u16 mii_bmcr_data = BMCR_RESET;
+
+ if ((atl1c_read_phy_reg(hw, MII_PHYSID1, &hw->phy_id1) != 0) ||
+ (atl1c_read_phy_reg(hw, MII_PHYSID2, &hw->phy_id2) != 0)) {
+ dev_err(&pdev->dev, "Error get phy ID\n");
+ return -1;
+ }
+ switch (hw->media_type) {
+ case MEDIA_TYPE_AUTO_SENSOR:
+ ret_val = atl1c_phy_setup_adv(hw);
+ if (ret_val) {
+ if (netif_msg_link(adapter))
+ dev_err(&pdev->dev,
+ "Error Setting up Auto-Negotiation\n");
+ return ret_val;
+ }
+ mii_bmcr_data |= BMCR_ANENABLE | BMCR_ANRESTART;
+ break;
+ case MEDIA_TYPE_100M_FULL:
+ mii_bmcr_data |= BMCR_SPEED100 | BMCR_FULLDPLX;
+ break;
+ case MEDIA_TYPE_100M_HALF:
+ mii_bmcr_data |= BMCR_SPEED100;
+ break;
+ case MEDIA_TYPE_10M_FULL:
+ mii_bmcr_data |= BMCR_FULLDPLX;
+ break;
+ case MEDIA_TYPE_10M_HALF:
+ break;
+ default:
+ if (netif_msg_link(adapter))
+ dev_err(&pdev->dev, "Wrong Media type %d\n",
+ hw->media_type);
+ return -1;
+ }
+
+ ret_val = atl1c_write_phy_reg(hw, MII_BMCR, mii_bmcr_data);
+ if (ret_val)
+ return ret_val;
+ hw->phy_configured = true;
+
+ return 0;
+}
+
+/*
+ * Detects the current speed and duplex settings of the hardware.
+ *
+ * hw - Struct containing variables accessed by shared code
+ * speed - Speed of the connection
+ * duplex - Duplex setting of the connection
+ */
+int atl1c_get_speed_and_duplex(struct atl1c_hw *hw, u16 *speed, u16 *duplex)
+{
+ int err;
+ u16 phy_data;
+
+ /* Read PHY Specific Status Register (17) */
+ err = atl1c_read_phy_reg(hw, MII_GIGA_PSSR, &phy_data);
+ if (err)
+ return err;
+
+ if (!(phy_data & GIGA_PSSR_SPD_DPLX_RESOLVED))
+ return -1;
+
+ switch (phy_data & GIGA_PSSR_SPEED) {
+ case GIGA_PSSR_1000MBS:
+ *speed = SPEED_1000;
+ break;
+ case GIGA_PSSR_100MBS:
+ *speed = SPEED_100;
+ break;
+ case GIGA_PSSR_10MBS:
+ *speed = SPEED_10;
+ break;
+ default:
+ return -1;
+ }
+
+ if (phy_data & GIGA_PSSR_DPLX)
+ *duplex = FULL_DUPLEX;
+ else
+ *duplex = HALF_DUPLEX;
+
+ return 0;
+}
+
+/* select one link mode to get lower power consumption */
+int atl1c_phy_to_ps_link(struct atl1c_hw *hw)
+{
+ struct atl1c_adapter *adapter = hw->adapter;
+ struct pci_dev *pdev = adapter->pdev;
+ int ret = 0;
+ u16 autoneg_advertised = ADVERTISED_10baseT_Half;
+ u16 save_autoneg_advertised;
+ u16 phy_data;
+ u16 mii_lpa_data;
+ u16 speed = SPEED_0;
+ u16 duplex = FULL_DUPLEX;
+ int i;
+
+ atl1c_read_phy_reg(hw, MII_BMSR, &phy_data);
+ atl1c_read_phy_reg(hw, MII_BMSR, &phy_data);
+ if (phy_data & BMSR_LSTATUS) {
+ atl1c_read_phy_reg(hw, MII_LPA, &mii_lpa_data);
+ if (mii_lpa_data & LPA_10FULL)
+ autoneg_advertised = ADVERTISED_10baseT_Full;
+ else if (mii_lpa_data & LPA_10HALF)
+ autoneg_advertised = ADVERTISED_10baseT_Half;
+ else if (mii_lpa_data & LPA_100HALF)
+ autoneg_advertised = ADVERTISED_100baseT_Half;
+ else if (mii_lpa_data & LPA_100FULL)
+ autoneg_advertised = ADVERTISED_100baseT_Full;
+
+ save_autoneg_advertised = hw->autoneg_advertised;
+ hw->phy_configured = false;
+ hw->autoneg_advertised = autoneg_advertised;
+ if (atl1c_restart_autoneg(hw) != 0) {
+ dev_dbg(&pdev->dev, "phy autoneg failed\n");
+ ret = -1;
+ }
+ hw->autoneg_advertised = save_autoneg_advertised;
+
+ if (mii_lpa_data) {
+ for (i = 0; i < AT_SUSPEND_LINK_TIMEOUT; i++) {
+ mdelay(100);
+ atl1c_read_phy_reg(hw, MII_BMSR, &phy_data);
+ atl1c_read_phy_reg(hw, MII_BMSR, &phy_data);
+ if (phy_data & BMSR_LSTATUS) {
+ if (atl1c_get_speed_and_duplex(hw, &speed,
+ &duplex) != 0)
+ dev_dbg(&pdev->dev,
+ "get speed and duplex failed\n");
+ break;
+ }
+ }
+ }
+ } else {
+ speed = SPEED_10;
+ duplex = HALF_DUPLEX;
+ }
+ adapter->link_speed = speed;
+ adapter->link_duplex = duplex;
+
+ return ret;
+}
+
+int atl1c_restart_autoneg(struct atl1c_hw *hw)
+{
+ int err = 0;
+ u16 mii_bmcr_data = BMCR_RESET;
+
+ err = atl1c_phy_setup_adv(hw);
+ if (err)
+ return err;
+ mii_bmcr_data |= BMCR_ANENABLE | BMCR_ANRESTART;
+
+ return atl1c_write_phy_reg(hw, MII_BMCR, mii_bmcr_data);
+}
+
+int atl1c_power_saving(struct atl1c_hw *hw, u32 wufc)
+{
+ struct atl1c_adapter *adapter = hw->adapter;
+ struct pci_dev *pdev = adapter->pdev;
+ u32 master_ctrl, mac_ctrl, phy_ctrl;
+ u32 wol_ctrl, speed;
+ u16 phy_data;
+
+ wol_ctrl = 0;
+ speed = adapter->link_speed == SPEED_1000 ?
+ MAC_CTRL_SPEED_1000 : MAC_CTRL_SPEED_10_100;
+
+ AT_READ_REG(hw, REG_MASTER_CTRL, &master_ctrl);
+ AT_READ_REG(hw, REG_MAC_CTRL, &mac_ctrl);
+ AT_READ_REG(hw, REG_GPHY_CTRL, &phy_ctrl);
+
+ master_ctrl &= ~MASTER_CTRL_CLK_SEL_DIS;
+ mac_ctrl = FIELD_SETX(mac_ctrl, MAC_CTRL_SPEED, speed);
+ mac_ctrl &= ~(MAC_CTRL_DUPLX | MAC_CTRL_RX_EN | MAC_CTRL_TX_EN);
+ if (adapter->link_duplex == FULL_DUPLEX)
+ mac_ctrl |= MAC_CTRL_DUPLX;
+ phy_ctrl &= ~(GPHY_CTRL_EXT_RESET | GPHY_CTRL_CLS);
+ phy_ctrl |= GPHY_CTRL_SEL_ANA_RST | GPHY_CTRL_HIB_PULSE |
+ GPHY_CTRL_HIB_EN;
+ if (!wufc) { /* without WoL */
+ master_ctrl |= MASTER_CTRL_CLK_SEL_DIS;
+ phy_ctrl |= GPHY_CTRL_PHY_IDDQ | GPHY_CTRL_PWDOWN_HW;
+ AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl);
+ AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl);
+ AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl);
+ AT_WRITE_REG(hw, REG_WOL_CTRL, 0);
+ hw->phy_configured = false; /* re-init PHY when resume */
+ return 0;
+ }
+ phy_ctrl |= GPHY_CTRL_EXT_RESET;
+ if (wufc & AT_WUFC_MAG) {
+ mac_ctrl |= MAC_CTRL_RX_EN | MAC_CTRL_BC_EN;
+ wol_ctrl |= WOL_MAGIC_EN | WOL_MAGIC_PME_EN;
+ if (hw->nic_type == athr_l2c_b && hw->revision_id == L2CB_V11)
+ wol_ctrl |= WOL_PATTERN_EN | WOL_PATTERN_PME_EN;
+ }
+ if (wufc & AT_WUFC_LNKC) {
+ wol_ctrl |= WOL_LINK_CHG_EN | WOL_LINK_CHG_PME_EN;
+ if (atl1c_write_phy_reg(hw, MII_IER, IER_LINK_UP) != 0) {
+ dev_dbg(&pdev->dev, "%s: write phy MII_IER failed.\n",
+ atl1c_driver_name);
+ }
+ }
+ /* clear PHY interrupt */
+ atl1c_read_phy_reg(hw, MII_ISR, &phy_data);
+
+ dev_dbg(&pdev->dev, "%s: suspend MAC=%x,MASTER=%x,PHY=0x%x,WOL=%x\n",
+ atl1c_driver_name, mac_ctrl, master_ctrl, phy_ctrl, wol_ctrl);
+ AT_WRITE_REG(hw, REG_MASTER_CTRL, master_ctrl);
+ AT_WRITE_REG(hw, REG_MAC_CTRL, mac_ctrl);
+ AT_WRITE_REG(hw, REG_GPHY_CTRL, phy_ctrl);
+ AT_WRITE_REG(hw, REG_WOL_CTRL, wol_ctrl);
+
+ return 0;
+}
+
+
+/* configure phy after Link change Event */
+void atl1c_post_phy_linkchg(struct atl1c_hw *hw, u16 link_speed)
+{
+ u16 phy_val;
+ bool adj_thresh = false;
+
+ if (hw->nic_type == athr_l2c_b || hw->nic_type == athr_l2c_b2 ||
+ hw->nic_type == athr_l1d || hw->nic_type == athr_l1d_2)
+ adj_thresh = true;
+
+ if (link_speed != SPEED_0) { /* link up */
+ /* az with brcm, half-amp */
+ if (hw->nic_type == athr_l1d_2) {
+ atl1c_read_phy_ext(hw, MIIEXT_PCS, MIIEXT_CLDCTRL6,
+ &phy_val);
+ phy_val = FIELD_GETX(phy_val, CLDCTRL6_CAB_LEN);
+ phy_val = phy_val > CLDCTRL6_CAB_LEN_SHORT ?
+ AZ_ANADECT_LONG : AZ_ANADECT_DEF;
+ atl1c_write_phy_dbg(hw, MIIDBG_AZ_ANADECT, phy_val);
+ }
+ /* threshold adjust */
+ if (adj_thresh && link_speed == SPEED_100 && hw->msi_lnkpatch) {
+ atl1c_write_phy_dbg(hw, MIIDBG_MSE16DB, L1D_MSE16DB_UP);
+ atl1c_write_phy_dbg(hw, MIIDBG_SYSMODCTRL,
+ L1D_SYSMODCTRL_IECHOADJ_DEF);
+ }
+ } else { /* link down */
+ if (adj_thresh && hw->msi_lnkpatch) {
+ atl1c_write_phy_dbg(hw, MIIDBG_SYSMODCTRL,
+ SYSMODCTRL_IECHOADJ_DEF);
+ atl1c_write_phy_dbg(hw, MIIDBG_MSE16DB,
+ L1D_MSE16DB_DOWN);
+ }
+ }
+}
Code Review / kvmfornfv.git / blobdiff