// SPDX-License-Identifier: GPL-2.0-only /**************************************************************************** * Driver for Solarflare network controllers and boards * Copyright 2007-2012 Solarflare Communications Inc. */ #include <linux/rtnetlink.h> #include "net_driver.h" #include "phy.h" #include "efx.h" #include "nic.h" #include "workarounds.h" /* Macros for unpacking the board revision */ /* The revision info is in host byte order. */ #define FALCON_BOARD_TYPE(_rev) … #define FALCON_BOARD_MAJOR(_rev) … #define FALCON_BOARD_MINOR(_rev) … /* Board types */ #define FALCON_BOARD_SFE4001 … #define FALCON_BOARD_SFE4002 … #define FALCON_BOARD_SFE4003 … #define FALCON_BOARD_SFN4112F … /* Board temperature is about 15°C above ambient when air flow is * limited. The maximum acceptable ambient temperature varies * depending on the PHY specifications but the critical temperature * above which we should shut down to avoid damage is 80°C. */ #define FALCON_BOARD_TEMP_BIAS … #define FALCON_BOARD_TEMP_CRIT … /* SFC4000 datasheet says: 'The maximum permitted junction temperature * is 125°C; the thermal design of the environment for the SFC4000 * should aim to keep this well below 100°C.' */ #define FALCON_JUNC_TEMP_MIN … #define FALCON_JUNC_TEMP_MAX … #define FALCON_JUNC_TEMP_CRIT … /***************************************************************************** * Support for LM87 sensor chip used on several boards */ #define LM87_REG_TEMP_HW_INT_LOCK … #define LM87_REG_TEMP_HW_EXT_LOCK … #define LM87_REG_TEMP_HW_INT … #define LM87_REG_TEMP_HW_EXT … #define LM87_REG_TEMP_EXT1 … #define LM87_REG_TEMP_INT … #define LM87_REG_ALARMS1 … #define LM87_REG_ALARMS2 … #define LM87_IN_LIMITS(nr, _min, _max) … #define LM87_AIN_LIMITS(nr, _min, _max) … #define LM87_TEMP_INT_LIMITS(_min, _max) … #define LM87_TEMP_EXT1_LIMITS(_min, _max) … #define LM87_ALARM_TEMP_INT … #define LM87_ALARM_TEMP_EXT1 … #if IS_ENABLED(CONFIG_SENSORS_LM87) static int ef4_poke_lm87(struct i2c_client *client, const u8 *reg_values) { … } static const u8 falcon_lm87_common_regs[] = …; static int ef4_init_lm87(struct ef4_nic *efx, const struct i2c_board_info *info, const u8 *reg_values) { … } static void ef4_fini_lm87(struct ef4_nic *efx) { … } static int ef4_check_lm87(struct ef4_nic *efx, unsigned mask) { … } #else /* !CONFIG_SENSORS_LM87 */ static inline int ef4_init_lm87(struct ef4_nic *efx, const struct i2c_board_info *info, const u8 *reg_values) { return 0; } static inline void ef4_fini_lm87(struct ef4_nic *efx) { } static inline int ef4_check_lm87(struct ef4_nic *efx, unsigned mask) { return 0; } #endif /* CONFIG_SENSORS_LM87 */ /***************************************************************************** * Support for the SFE4001 NIC. * * The SFE4001 does not power-up fully at reset due to its high power * consumption. We control its power via a PCA9539 I/O expander. * It also has a MAX6647 temperature monitor which we expose to * the lm90 driver. * * This also provides minimal support for reflashing the PHY, which is * initiated by resetting it with the FLASH_CFG_1 pin pulled down. * On SFE4001 rev A2 and later this is connected to the 3V3X output of * the IO-expander. * We represent reflash mode as PHY_MODE_SPECIAL and make it mutually * exclusive with the network device being open. */ /************************************************************************** * Support for I2C IO Expander device on SFE4001 */ #define PCA9539 … #define P0_IN … #define P0_OUT … #define P0_INVERT … #define P0_CONFIG … #define P0_EN_1V0X_LBN … #define P0_EN_1V0X_WIDTH … #define P0_EN_1V2_LBN … #define P0_EN_1V2_WIDTH … #define P0_EN_2V5_LBN … #define P0_EN_2V5_WIDTH … #define P0_EN_3V3X_LBN … #define P0_EN_3V3X_WIDTH … #define P0_EN_5V_LBN … #define P0_EN_5V_WIDTH … #define P0_SHORTEN_JTAG_LBN … #define P0_SHORTEN_JTAG_WIDTH … #define P0_X_TRST_LBN … #define P0_X_TRST_WIDTH … #define P0_DSP_RESET_LBN … #define P0_DSP_RESET_WIDTH … #define P1_IN … #define P1_OUT … #define P1_INVERT … #define P1_CONFIG … #define P1_AFE_PWD_LBN … #define P1_AFE_PWD_WIDTH … #define P1_DSP_PWD25_LBN … #define P1_DSP_PWD25_WIDTH … #define P1_RESERVED_LBN … #define P1_RESERVED_WIDTH … #define P1_SPARE_LBN … #define P1_SPARE_WIDTH … /* Temperature Sensor */ #define MAX664X_REG_RSL … #define MAX664X_REG_WLHO … static void sfe4001_poweroff(struct ef4_nic *efx) { … } static int sfe4001_poweron(struct ef4_nic *efx) { … } static ssize_t phy_flash_cfg_show(struct device *dev, struct device_attribute *attr, char *buf) { … } static ssize_t phy_flash_cfg_store(struct device *dev, struct device_attribute *attr, const char *buf, size_t count) { … } static DEVICE_ATTR_RW(phy_flash_cfg); static void sfe4001_fini(struct ef4_nic *efx) { … } static int sfe4001_check_hw(struct ef4_nic *efx) { … } static const struct i2c_board_info sfe4001_hwmon_info = …; /* This board uses an I2C expander to provider power to the PHY, which needs to * be turned on before the PHY can be used. * Context: Process context, rtnl lock held */ static int sfe4001_init(struct ef4_nic *efx) { … } /***************************************************************************** * Support for the SFE4002 * */ static u8 sfe4002_lm87_channel = …; /* use AIN not FAN inputs */ static const u8 sfe4002_lm87_regs[] = …; static const struct i2c_board_info sfe4002_hwmon_info = …; /****************************************************************************/ /* LED allocations. Note that on rev A0 boards the schematic and the reality * differ: red and green are swapped. Below is the fixed (A1) layout (there * are only 3 A0 boards in existence, so no real reason to make this * conditional). */ #define SFE4002_FAULT_LED … #define SFE4002_RX_LED … #define SFE4002_TX_LED … static void sfe4002_init_phy(struct ef4_nic *efx) { … } static void sfe4002_set_id_led(struct ef4_nic *efx, enum ef4_led_mode mode) { … } static int sfe4002_check_hw(struct ef4_nic *efx) { … } static int sfe4002_init(struct ef4_nic *efx) { … } /***************************************************************************** * Support for the SFN4112F * */ static u8 sfn4112f_lm87_channel = …; /* use AIN not FAN inputs */ static const u8 sfn4112f_lm87_regs[] = …; static const struct i2c_board_info sfn4112f_hwmon_info = …; #define SFN4112F_ACT_LED … #define SFN4112F_LINK_LED … static void sfn4112f_init_phy(struct ef4_nic *efx) { … } static void sfn4112f_set_id_led(struct ef4_nic *efx, enum ef4_led_mode mode) { … } static int sfn4112f_check_hw(struct ef4_nic *efx) { … } static int sfn4112f_init(struct ef4_nic *efx) { … } /***************************************************************************** * Support for the SFE4003 * */ static u8 sfe4003_lm87_channel = …; /* use AIN not FAN inputs */ static const u8 sfe4003_lm87_regs[] = …; static const struct i2c_board_info sfe4003_hwmon_info = …; /* Board-specific LED info. */ #define SFE4003_RED_LED_GPIO … #define SFE4003_LED_ON … #define SFE4003_LED_OFF … static void sfe4003_set_id_led(struct ef4_nic *efx, enum ef4_led_mode mode) { … } static void sfe4003_init_phy(struct ef4_nic *efx) { … } static int sfe4003_check_hw(struct ef4_nic *efx) { … } static int sfe4003_init(struct ef4_nic *efx) { … } static const struct falcon_board_type board_types[] = …; int falcon_probe_board(struct ef4_nic *efx, u16 revision_info) { … }
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