diff options
Diffstat (limited to 'drivers/net/atl1e/atl1e_hw.c')
| -rw-r--r-- | drivers/net/atl1e/atl1e_hw.c | 651 |
1 files changed, 0 insertions, 651 deletions
diff --git a/drivers/net/atl1e/atl1e_hw.c b/drivers/net/atl1e/atl1e_hw.c deleted file mode 100644 index 923063d2e5b..00000000000 --- a/drivers/net/atl1e/atl1e_hw.c +++ /dev/null @@ -1,651 +0,0 @@ -/* - * 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 "atl1e.h" - -/* - * check_eeprom_exist - * return 0 if eeprom exist - */ -int atl1e_check_eeprom_exist(struct atl1e_hw *hw) -{ - u32 value; - - value = AT_READ_REG(hw, REG_SPI_FLASH_CTRL); - if (value & SPI_FLASH_CTRL_EN_VPD) { - value &= ~SPI_FLASH_CTRL_EN_VPD; - AT_WRITE_REG(hw, REG_SPI_FLASH_CTRL, value); - } - value = AT_READ_REGW(hw, REG_PCIE_CAP_LIST); - return ((value & 0xFF00) == 0x6C00) ? 0 : 1; -} - -void atl1e_hw_set_mac_addr(struct atl1e_hw *hw) -{ - u32 value; - /* - * 00-0B-6A-F6-00-DC - * 0: 6AF600DC 1: 000B - * low dword - */ - value = (((u32)hw->mac_addr[2]) << 24) | - (((u32)hw->mac_addr[3]) << 16) | - (((u32)hw->mac_addr[4]) << 8) | - (((u32)hw->mac_addr[5])) ; - AT_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 0, value); - /* hight dword */ - value = (((u32)hw->mac_addr[0]) << 8) | - (((u32)hw->mac_addr[1])) ; - AT_WRITE_REG_ARRAY(hw, REG_MAC_STA_ADDR, 1, value); -} - -/* - * atl1e_get_permanent_address - * return 0 if get valid mac address, - */ -static int atl1e_get_permanent_address(struct atl1e_hw *hw) -{ - u32 addr[2]; - u32 i; - u32 twsi_ctrl_data; - u8 eth_addr[ETH_ALEN]; - - if (is_valid_ether_addr(hw->perm_mac_addr)) - return 0; - - /* init */ - addr[0] = addr[1] = 0; - - if (!atl1e_check_eeprom_exist(hw)) { - /* eeprom exist */ - twsi_ctrl_data = AT_READ_REG(hw, REG_TWSI_CTRL); - 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); - twsi_ctrl_data = AT_READ_REG(hw, REG_TWSI_CTRL); - if ((twsi_ctrl_data & TWSI_CTRL_SW_LDSTART) == 0) - break; - } - if (i >= AT_TWSI_EEPROM_TIMEOUT) - return AT_ERR_TIMEOUT; - } - - /* maybe MAC-address is from BIOS */ - addr[0] = AT_READ_REG(hw, REG_MAC_STA_ADDR); - addr[1] = AT_READ_REG(hw, REG_MAC_STA_ADDR + 4); - *(u32 *) ð_addr[2] = swab32(addr[0]); - *(u16 *) ð_addr[0] = swab16(*(u16 *)&addr[1]); - - if (is_valid_ether_addr(eth_addr)) { - memcpy(hw->perm_mac_addr, eth_addr, ETH_ALEN); - return 0; - } - - return AT_ERR_EEPROM; -} - -bool atl1e_write_eeprom(struct atl1e_hw *hw, u32 offset, u32 value) -{ - return true; -} - -bool atl1e_read_eeprom(struct atl1e_hw *hw, u32 offset, u32 *p_value) -{ - int i; - u32 control; - - if (offset & 3) - return false; /* address do not align */ - - AT_WRITE_REG(hw, REG_VPD_DATA, 0); - control = (offset & VPD_CAP_VPD_ADDR_MASK) << VPD_CAP_VPD_ADDR_SHIFT; - AT_WRITE_REG(hw, REG_VPD_CAP, control); - - for (i = 0; i < 10; i++) { - msleep(2); - control = AT_READ_REG(hw, REG_VPD_CAP); - if (control & VPD_CAP_VPD_FLAG) - break; - } - if (control & VPD_CAP_VPD_FLAG) { - *p_value = AT_READ_REG(hw, REG_VPD_DATA); - return true; - } - return false; /* timeout */ -} - -void atl1e_force_ps(struct atl1e_hw *hw) -{ - AT_WRITE_REGW(hw, REG_GPHY_CTRL, - GPHY_CTRL_PW_WOL_DIS | GPHY_CTRL_EXT_RESET); -} - -/* - * Reads the adapter's MAC address from the EEPROM - * - * hw - Struct containing variables accessed by shared code - */ -int atl1e_read_mac_addr(struct atl1e_hw *hw) -{ - int err = 0; - - err = atl1e_get_permanent_address(hw); - if (err) - return AT_ERR_EEPROM; - memcpy(hw->mac_addr, hw->perm_mac_addr, sizeof(hw->perm_mac_addr)); - return 0; -} - -/* - * atl1e_hash_mc_addr - * purpose - * set hash value for a multicast address - */ -u32 atl1e_hash_mc_addr(struct atl1e_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 atl1e_hash_set(struct atl1e_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 7 bits 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); -} -/* - * 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 atl1e_read_phy_reg(struct atl1e_hw *hw, u16 reg_addr, u16 *phy_data) -{ - u32 val; - int i; - - val = ((u32)(reg_addr & MDIO_REG_ADDR_MASK)) << MDIO_REG_ADDR_SHIFT | - MDIO_START | MDIO_SUP_PREAMBLE | MDIO_RW | - MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT; - - AT_WRITE_REG(hw, REG_MDIO_CTRL, val); - - wmb(); - - for (i = 0; i < MDIO_WAIT_TIMES; i++) { - udelay(2); - val = AT_READ_REG(hw, REG_MDIO_CTRL); - if (!(val & (MDIO_START | MDIO_BUSY))) - break; - wmb(); - } - if (!(val & (MDIO_START | MDIO_BUSY))) { - *phy_data = (u16)val; - return 0; - } - - return AT_ERR_PHY; -} - -/* - * 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 atl1e_write_phy_reg(struct atl1e_hw *hw, u32 reg_addr, u16 phy_data) -{ - int i; - u32 val; - - val = ((u32)(phy_data & MDIO_DATA_MASK)) << MDIO_DATA_SHIFT | - (reg_addr&MDIO_REG_ADDR_MASK) << MDIO_REG_ADDR_SHIFT | - MDIO_SUP_PREAMBLE | - MDIO_START | - MDIO_CLK_25_4 << MDIO_CLK_SEL_SHIFT; - - AT_WRITE_REG(hw, REG_MDIO_CTRL, val); - wmb(); - - for (i = 0; i < MDIO_WAIT_TIMES; i++) { - udelay(2); - val = AT_READ_REG(hw, REG_MDIO_CTRL); - if (!(val & (MDIO_START | MDIO_BUSY))) - break; - wmb(); - } - - if (!(val & (MDIO_START | MDIO_BUSY))) - return 0; - - return AT_ERR_PHY; -} - -/* - * atl1e_init_pcie - init PCIE module - */ -static void atl1e_init_pcie(struct atl1e_hw *hw) -{ - u32 value; - /* comment 2lines below to save more power when sususpend - value = LTSSM_TEST_MODE_DEF; - AT_WRITE_REG(hw, REG_LTSSM_TEST_MODE, value); - */ - - /* pcie flow control mode change */ - value = AT_READ_REG(hw, 0x1008); - value |= 0x8000; - AT_WRITE_REG(hw, 0x1008, value); -} -/* - * Configures PHY autoneg and flow control advertisement settings - * - * hw - Struct containing variables accessed by shared code - */ -static int atl1e_phy_setup_autoneg_adv(struct atl1e_hw *hw) -{ - s32 ret_val; - u16 mii_autoneg_adv_reg; - u16 mii_1000t_ctrl_reg; - - if (0 != hw->mii_autoneg_adv_reg) - return 0; - /* Read the MII Auto-Neg Advertisement Register (Address 4/9). */ - mii_autoneg_adv_reg = MII_AR_DEFAULT_CAP_MASK; - mii_1000t_ctrl_reg = MII_AT001_CR_1000T_DEFAULT_CAP_MASK; - - /* - * Need to parse autoneg_advertised 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_ALL; - mii_1000t_ctrl_reg &= ~MII_AT001_CR_1000T_SPEED_MASK; - - /* - * Need to parse MediaType and setup the - * appropriate PHY registers. - */ - switch (hw->media_type) { - case MEDIA_TYPE_AUTO_SENSOR: - mii_autoneg_adv_reg |= ADVERTISE_ALL; - hw->autoneg_advertised = ADVERTISE_ALL; - if (hw->nic_type == athr_l1e) { - mii_1000t_ctrl_reg |= ADVERTISE_1000FULL; - hw->autoneg_advertised |= ADVERTISE_1000_FULL; - } - break; - - case MEDIA_TYPE_100M_FULL: - mii_autoneg_adv_reg |= ADVERTISE_100FULL; - hw->autoneg_advertised = ADVERTISE_100_FULL; - break; - - case MEDIA_TYPE_100M_HALF: - mii_autoneg_adv_reg |= ADVERTISE_100_HALF; - hw->autoneg_advertised = ADVERTISE_100_HALF; - break; - - case MEDIA_TYPE_10M_FULL: - mii_autoneg_adv_reg |= ADVERTISE_10_FULL; - hw->autoneg_advertised = ADVERTISE_10_FULL; - break; - - default: - mii_autoneg_adv_reg |= ADVERTISE_10_HALF; - hw->autoneg_advertised = ADVERTISE_10_HALF; - break; - } - - /* flow control fixed to enable all */ - mii_autoneg_adv_reg |= (ADVERTISE_PAUSE_ASYM | ADVERTISE_PAUSE_CAP); - - hw->mii_autoneg_adv_reg = mii_autoneg_adv_reg; - hw->mii_1000t_ctrl_reg = mii_1000t_ctrl_reg; - - ret_val = atl1e_write_phy_reg(hw, MII_ADVERTISE, mii_autoneg_adv_reg); - if (ret_val) - return ret_val; - - if (hw->nic_type == athr_l1e || hw->nic_type == athr_l2e_revA) { - ret_val = atl1e_write_phy_reg(hw, MII_CTRL1000, - mii_1000t_ctrl_reg); - if (ret_val) - return ret_val; - } - - return 0; -} - - -/* - * Resets the PHY and make all config validate - * - * hw - Struct containing variables accessed by shared code - * - * Sets bit 15 and 12 of the MII control regiser (for F001 bug) - */ -int atl1e_phy_commit(struct atl1e_hw *hw) -{ - struct atl1e_adapter *adapter = hw->adapter; - int ret_val; - u16 phy_data; - - phy_data = BMCR_RESET | BMCR_ANENABLE | BMCR_ANRESTART; - - ret_val = atl1e_write_phy_reg(hw, MII_BMCR, phy_data); - if (ret_val) { - u32 val; - int i; - /************************************** - * pcie serdes link may be down ! - **************************************/ - for (i = 0; i < 25; i++) { - msleep(1); - val = AT_READ_REG(hw, REG_MDIO_CTRL); - if (!(val & (MDIO_START | MDIO_BUSY))) - break; - } - - if (0 != (val & (MDIO_START | MDIO_BUSY))) { - netdev_err(adapter->netdev, - "pcie linkdown at least for 25ms\n"); - return ret_val; - } - - netdev_err(adapter->netdev, "pcie linkup after %d ms\n", i); - } - return 0; -} - -int atl1e_phy_init(struct atl1e_hw *hw) -{ - struct atl1e_adapter *adapter = hw->adapter; - s32 ret_val; - u16 phy_val; - - if (hw->phy_configured) { - if (hw->re_autoneg) { - hw->re_autoneg = false; - return atl1e_restart_autoneg(hw); - } - return 0; - } - - /* RESET GPHY Core */ - AT_WRITE_REGW(hw, REG_GPHY_CTRL, GPHY_CTRL_DEFAULT); - msleep(2); - AT_WRITE_REGW(hw, REG_GPHY_CTRL, GPHY_CTRL_DEFAULT | - GPHY_CTRL_EXT_RESET); - msleep(2); - - /* patches */ - /* p1. eable hibernation mode */ - ret_val = atl1e_write_phy_reg(hw, MII_DBG_ADDR, 0xB); - if (ret_val) - return ret_val; - ret_val = atl1e_write_phy_reg(hw, MII_DBG_DATA, 0xBC00); - if (ret_val) - return ret_val; - /* p2. set Class A/B for all modes */ - ret_val = atl1e_write_phy_reg(hw, MII_DBG_ADDR, 0); - if (ret_val) - return ret_val; - phy_val = 0x02ef; - /* remove Class AB */ - /* phy_val = hw->emi_ca ? 0x02ef : 0x02df; */ - ret_val = atl1e_write_phy_reg(hw, MII_DBG_DATA, phy_val); - if (ret_val) - return ret_val; - /* p3. 10B ??? */ - ret_val = atl1e_write_phy_reg(hw, MII_DBG_ADDR, 0x12); - if (ret_val) - return ret_val; - ret_val = atl1e_write_phy_reg(hw, MII_DBG_DATA, 0x4C04); - if (ret_val) - return ret_val; - /* p4. 1000T power */ - ret_val = atl1e_write_phy_reg(hw, MII_DBG_ADDR, 0x4); - if (ret_val) - return ret_val; - ret_val = atl1e_write_phy_reg(hw, MII_DBG_DATA, 0x8BBB); - if (ret_val) - return ret_val; - - ret_val = atl1e_write_phy_reg(hw, MII_DBG_ADDR, 0x5); - if (ret_val) - return ret_val; - ret_val = atl1e_write_phy_reg(hw, MII_DBG_DATA, 0x2C46); - if (ret_val) - return ret_val; - - msleep(1); - - /*Enable PHY LinkChange Interrupt */ - ret_val = atl1e_write_phy_reg(hw, MII_INT_CTRL, 0xC00); - if (ret_val) { - netdev_err(adapter->netdev, - "Error enable PHY linkChange Interrupt\n"); - return ret_val; - } - /* setup AutoNeg parameters */ - ret_val = atl1e_phy_setup_autoneg_adv(hw); - if (ret_val) { - netdev_err(adapter->netdev, - "Error Setting up Auto-Negotiation\n"); - return ret_val; - } - /* SW.Reset & En-Auto-Neg to restart Auto-Neg*/ - netdev_dbg(adapter->netdev, "Restarting Auto-Negotiation\n"); - ret_val = atl1e_phy_commit(hw); - if (ret_val) { - netdev_err(adapter->netdev, "Error resetting the phy\n"); - return ret_val; - } - - hw->phy_configured = true; - - return 0; -} - -/* - * Reset the transmit and receive units; mask and clear all interrupts. - * hw - Struct containing variables accessed by shared code - * return : 0 or idle status (if error) - */ -int atl1e_reset_hw(struct atl1e_hw *hw) -{ - struct atl1e_adapter *adapter = hw->adapter; - struct pci_dev *pdev = adapter->pdev; - - u32 idle_status_data = 0; - u16 pci_cfg_cmd_word = 0; - int timeout = 0; - - /* Workaround for PCI problem when BIOS sets MMRBC incorrectly. */ - pci_read_config_word(pdev, PCI_REG_COMMAND, &pci_cfg_cmd_word); - if ((pci_cfg_cmd_word & (CMD_IO_SPACE | - CMD_MEMORY_SPACE | CMD_BUS_MASTER)) - != (CMD_IO_SPACE | CMD_MEMORY_SPACE | CMD_BUS_MASTER)) { - pci_cfg_cmd_word |= (CMD_IO_SPACE | - CMD_MEMORY_SPACE | CMD_BUS_MASTER); - pci_write_config_word(pdev, PCI_REG_COMMAND, pci_cfg_cmd_word); - } - - /* - * Issue Soft Reset to the MAC. This will reset the chip's - * transmit, receive, DMA. It will not effect - * the current PCI configuration. The global reset bit is self- - * clearing, and should clear within a microsecond. - */ - AT_WRITE_REG(hw, REG_MASTER_CTRL, - MASTER_CTRL_LED_MODE | MASTER_CTRL_SOFT_RST); - wmb(); - msleep(1); - - /* Wait at least 10ms for All module to be Idle */ - for (timeout = 0; timeout < AT_HW_MAX_IDLE_DELAY; timeout++) { - idle_status_data = AT_READ_REG(hw, REG_IDLE_STATUS); - if (idle_status_data == 0) - break; - msleep(1); - cpu_relax(); - } - - if (timeout >= AT_HW_MAX_IDLE_DELAY) { - netdev_err(adapter->netdev, - "MAC state machine can't be idle since disabled for 10ms second\n"); - return AT_ERR_TIMEOUT; - } - - return 0; -} - - -/* - * Performs basic configuration of the adapter. - * - * hw - Struct containing variables accessed by shared code - * Assumes that the controller has previously been reset and is in a - * post-reset uninitialized state. Initializes multicast table, - * and Calls routines to setup link - * Leaves the transmit and receive units disabled and uninitialized. - */ -int atl1e_init_hw(struct atl1e_hw *hw) -{ - s32 ret_val = 0; - - atl1e_init_pcie(hw); - - /* Zero out the Multicast HASH table */ - /* clear the old settings from the multicast hash table */ - AT_WRITE_REG(hw, REG_RX_HASH_TABLE, 0); - AT_WRITE_REG_ARRAY(hw, REG_RX_HASH_TABLE, 1, 0); - - ret_val = atl1e_phy_init(hw); - - return ret_val; -} - -/* - * 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 atl1e_get_speed_and_duplex(struct atl1e_hw *hw, u16 *speed, u16 *duplex) -{ - int err; - u16 phy_data; - - /* Read PHY Specific Status Register (17) */ - err = atl1e_read_phy_reg(hw, MII_AT001_PSSR, &phy_data); - if (err) - return err; - - if (!(phy_data & MII_AT001_PSSR_SPD_DPLX_RESOLVED)) - return AT_ERR_PHY_RES; - - switch (phy_data & MII_AT001_PSSR_SPEED) { - case MII_AT001_PSSR_1000MBS: - *speed = SPEED_1000; - break; - case MII_AT001_PSSR_100MBS: - *speed = SPEED_100; - break; - case MII_AT001_PSSR_10MBS: - *speed = SPEED_10; - break; - default: - return AT_ERR_PHY_SPEED; - break; - } - - if (phy_data & MII_AT001_PSSR_DPLX) - *duplex = FULL_DUPLEX; - else - *duplex = HALF_DUPLEX; - - return 0; -} - -int atl1e_restart_autoneg(struct atl1e_hw *hw) -{ - int err = 0; - - err = atl1e_write_phy_reg(hw, MII_ADVERTISE, hw->mii_autoneg_adv_reg); - if (err) - return err; - - if (hw->nic_type == athr_l1e || hw->nic_type == athr_l2e_revA) { - err = atl1e_write_phy_reg(hw, MII_CTRL1000, - hw->mii_1000t_ctrl_reg); - if (err) - return err; - } - - err = atl1e_write_phy_reg(hw, MII_BMCR, - BMCR_RESET | BMCR_ANENABLE | BMCR_ANRESTART); - return err; -} - |