diff options
Diffstat (limited to 'drivers/net/phy/mxl-86110.c')
| -rw-r--r-- | drivers/net/phy/mxl-86110.c | 392 |
1 files changed, 377 insertions, 15 deletions
diff --git a/drivers/net/phy/mxl-86110.c b/drivers/net/phy/mxl-86110.c index ff2a3a22bd5b..e5d137a37a1d 100644 --- a/drivers/net/phy/mxl-86110.c +++ b/drivers/net/phy/mxl-86110.c @@ -15,6 +15,7 @@ /* PHY ID */ #define PHY_ID_MXL86110 0xc1335580 +#define PHY_ID_MXL86111 0xc1335588 /* required to access extended registers */ #define MXL86110_EXTD_REG_ADDR_OFFSET 0x1E @@ -22,7 +23,15 @@ #define PHY_IRQ_ENABLE_REG 0x12 #define PHY_IRQ_ENABLE_REG_WOL BIT(6) -/* SyncE Configuration Register - COM_EXT SYNCE_CFG */ +/* different pages for EXTD access for MXL86111 */ +/* SerDes/PHY Control Access Register - COM_EXT_SMI_SDS_PHY */ +#define MXL86111_EXT_SMI_SDS_PHY_REG 0xA000 +#define MXL86111_EXT_SMI_SDS_PHYSPACE_MASK BIT(1) +#define MXL86111_EXT_SMI_SDS_PHYFIBER_SPACE (0x1 << 1) +#define MXL86111_EXT_SMI_SDS_PHYUTP_SPACE (0x0 << 1) +#define MXL86111_EXT_SMI_SDS_PHY_AUTO 0xff + +/* SyncE Configuration Register - COM_EXT_SYNCE_CFG */ #define MXL86110_EXT_SYNCE_CFG_REG 0xA012 #define MXL86110_EXT_SYNCE_CFG_CLK_FRE_SEL BIT(4) #define MXL86110_EXT_SYNCE_CFG_EN_SYNC_E_DURING_LNKDN BIT(5) @@ -71,6 +80,11 @@ #define MXL86110_MAX_LEDS 3 /* LED registers and defines */ +#define MXL86110_COM_EXT_LED_GEN_CFG 0xA00B +# define MXL86110_COM_EXT_LED_GEN_CFG_LFM(x) ((BIT(0) | BIT(1)) << (3 * (x))) +# define MXL86110_COM_EXT_LED_GEN_CFG_LFME(x) (BIT(0) << (3 * (x))) +# define MXL86110_COM_EXT_LED_GEN_CFG_LFE(x) (BIT(2) << (3 * (x))) + #define MXL86110_LED0_CFG_REG 0xA00C #define MXL86110_LED1_CFG_REG 0xA00D #define MXL86110_LED2_CFG_REG 0xA00E @@ -110,9 +124,67 @@ /* Chip Configuration Register - COM_EXT_CHIP_CFG */ #define MXL86110_EXT_CHIP_CFG_REG 0xA001 +#define MXL86111_EXT_CHIP_CFG_MODE_SEL_MASK GENMASK(2, 0) +#define MXL86111_EXT_CHIP_CFG_MODE_UTP_TO_RGMII 0 +#define MXL86111_EXT_CHIP_CFG_MODE_FIBER_TO_RGMII 1 +#define MXL86111_EXT_CHIP_CFG_MODE_UTP_FIBER_TO_RGMII 2 +#define MXL86111_EXT_CHIP_CFG_MODE_UTP_TO_SGMII 3 +#define MXL86111_EXT_CHIP_CFG_MODE_SGPHY_TO_RGMAC 4 +#define MXL86111_EXT_CHIP_CFG_MODE_SGMAC_TO_RGPHY 5 +#define MXL86111_EXT_CHIP_CFG_MODE_UTP_TO_FIBER_AUTO 6 +#define MXL86111_EXT_CHIP_CFG_MODE_UTP_TO_FIBER_FORCE 7 + +#define MXL86111_EXT_CHIP_CFG_CLDO_MASK GENMASK(5, 4) +#define MXL86111_EXT_CHIP_CFG_CLDO_3V3 0 +#define MXL86111_EXT_CHIP_CFG_CLDO_2V5 1 +#define MXL86111_EXT_CHIP_CFG_CLDO_1V8_2 2 +#define MXL86111_EXT_CHIP_CFG_CLDO_1V8_3 3 +#define MXL86111_EXT_CHIP_CFG_CLDO_SHIFT 4 +#define MXL86111_EXT_CHIP_CFG_ELDO BIT(6) #define MXL86110_EXT_CHIP_CFG_RXDLY_ENABLE BIT(8) #define MXL86110_EXT_CHIP_CFG_SW_RST_N_MODE BIT(15) +/* Specific Status Register - PHY_STAT */ +#define MXL86111_PHY_STAT_REG 0x11 +#define MXL86111_PHY_STAT_SPEED_MASK GENMASK(15, 14) +#define MXL86111_PHY_STAT_SPEED_OFFSET 14 +#define MXL86111_PHY_STAT_SPEED_10M 0x0 +#define MXL86111_PHY_STAT_SPEED_100M 0x1 +#define MXL86111_PHY_STAT_SPEED_1000M 0x2 +#define MXL86111_PHY_STAT_DPX_OFFSET 13 +#define MXL86111_PHY_STAT_DPX BIT(13) +#define MXL86111_PHY_STAT_LSRT BIT(10) + +/* 3 phy reg page modes,auto mode combines utp and fiber mode*/ +#define MXL86111_MODE_FIBER 0x1 +#define MXL86111_MODE_UTP 0x2 +#define MXL86111_MODE_AUTO 0x3 + +/* FIBER Auto-Negotiation link partner ability - SDS_AN_LPA */ +#define MXL86111_SDS_AN_LPA_PAUSE (0x3 << 7) +#define MXL86111_SDS_AN_LPA_ASYM_PAUSE (0x2 << 7) + +/* Miscellaneous Control Register - COM_EXT _MISC_CFG */ +#define MXL86111_EXT_MISC_CONFIG_REG 0xa006 +#define MXL86111_EXT_MISC_CONFIG_FIB_SPEED_SEL BIT(0) +#define MXL86111_EXT_MISC_CONFIG_FIB_SPEED_SEL_1000BX (0x1 << 0) +#define MXL86111_EXT_MISC_CONFIG_FIB_SPEED_SEL_100BX (0x0 << 0) + +/* Phy fiber Link timer cfg2 Register - EXT_SDS_LINK_TIMER_CFG2 */ +#define MXL86111_EXT_SDS_LINK_TIMER_CFG2_REG 0xA5 +#define MXL86111_EXT_SDS_LINK_TIMER_CFG2_EN_AUTOSEN BIT(15) + +/* default values of PHY register, required for Dual Media mode */ +#define MII_BMSR_DEFAULT_VAL 0x7949 +#define MII_ESTATUS_DEFAULT_VAL 0x2000 + +/* Timeout in ms for PHY SW reset check in STD_CTRL/SDS_CTRL */ +#define BMCR_RESET_TIMEOUT 500 + +/* PL P1 requires optimized RGMII timing for 1.8V RGMII voltage + */ +#define MXL86111_PL_P1 0x500 + /** * __mxl86110_write_extended_reg() - write to a PHY's extended register * @phydev: pointer to the PHY device structure @@ -236,6 +308,29 @@ static int mxl86110_read_extended_reg(struct phy_device *phydev, u16 regnum) } /** + * mxl86110_modify_extended_reg() - modify bits of a PHY's extended register + * @phydev: pointer to the PHY device structure + * @regnum: register number to write + * @mask: bit mask of bits to clear + * @set: bit mask of bits to set + * + * Note: register value = (old register value & ~mask) | set. + * + * Return: 0 or negative error code + */ +static int mxl86110_modify_extended_reg(struct phy_device *phydev, + u16 regnum, u16 mask, u16 set) +{ + int ret; + + phy_lock_mdio_bus(phydev); + ret = __mxl86110_modify_extended_reg(phydev, regnum, mask, set); + phy_unlock_mdio_bus(phydev); + + return ret; +} + +/** * mxl86110_get_wol() - report if wake-on-lan is enabled * @phydev: pointer to the phy_device * @wol: a pointer to a &struct ethtool_wolinfo @@ -394,6 +489,7 @@ static int mxl86110_led_hw_control_set(struct phy_device *phydev, u8 index, unsigned long rules) { u16 val = 0; + int ret; if (index >= MXL86110_MAX_LEDS) return -EINVAL; @@ -423,8 +519,43 @@ static int mxl86110_led_hw_control_set(struct phy_device *phydev, u8 index, rules & BIT(TRIGGER_NETDEV_RX)) val |= MXL86110_LEDX_CFG_BLINK; - return mxl86110_write_extended_reg(phydev, + ret = mxl86110_write_extended_reg(phydev, MXL86110_LED0_CFG_REG + index, val); + if (ret) + return ret; + + /* clear manual control bit */ + ret = mxl86110_modify_extended_reg(phydev, + MXL86110_COM_EXT_LED_GEN_CFG, + MXL86110_COM_EXT_LED_GEN_CFG_LFE(index), + 0); + + return ret; +} + +static int mxl86110_led_brightness_set(struct phy_device *phydev, + u8 index, enum led_brightness value) +{ + u16 mask, set; + int ret; + + if (index >= MXL86110_MAX_LEDS) + return -EINVAL; + + /* force manual control */ + set = MXL86110_COM_EXT_LED_GEN_CFG_LFE(index); + /* clear previous force mode */ + mask = MXL86110_COM_EXT_LED_GEN_CFG_LFM(index); + + /* force LED to be permanently on */ + if (value != LED_OFF) + set |= MXL86110_COM_EXT_LED_GEN_CFG_LFME(index); + + ret = mxl86110_modify_extended_reg(phydev, + MXL86110_COM_EXT_LED_GEN_CFG, + mask, set); + + return ret; } /** @@ -521,22 +652,15 @@ static int mxl86110_enable_led_activity_blink(struct phy_device *phydev) } /** - * mxl86110_config_init() - initialize the PHY + * mxl86110_config_rgmii_delay() - configure RGMII delays * @phydev: pointer to the phy_device * * Return: 0 or negative errno code */ -static int mxl86110_config_init(struct phy_device *phydev) +static int mxl86110_config_rgmii_delay(struct phy_device *phydev) { - u16 val = 0; int ret; - - phy_lock_mdio_bus(phydev); - - /* configure syncE / clk output */ - ret = mxl86110_synce_clk_cfg(phydev); - if (ret < 0) - goto out; + u16 val; switch (phydev->interface) { case PHY_INTERFACE_MODE_RGMII: @@ -578,6 +702,31 @@ static int mxl86110_config_init(struct phy_device *phydev) if (ret < 0) goto out; +out: + return ret; +} + +/** + * mxl86110_config_init() - initialize the MXL86110 PHY + * @phydev: pointer to the phy_device + * + * Return: 0 or negative errno code + */ +static int mxl86110_config_init(struct phy_device *phydev) +{ + int ret; + + phy_lock_mdio_bus(phydev); + + /* configure syncE / clk output */ + ret = mxl86110_synce_clk_cfg(phydev); + if (ret < 0) + goto out; + + ret = mxl86110_config_rgmii_delay(phydev); + if (ret < 0) + goto out; + ret = mxl86110_enable_led_activity_blink(phydev); if (ret < 0) goto out; @@ -589,6 +738,201 @@ out: return ret; } +/** + * mxl86111_probe() - validate bootstrap chip config and set UTP page + * @phydev: pointer to the phy_device + * + * Return: 0 or negative errno code + */ +static int mxl86111_probe(struct phy_device *phydev) +{ + int chip_config; + u16 reg_page; + int ret; + + chip_config = mxl86110_read_extended_reg(phydev, MXL86110_EXT_CHIP_CFG_REG); + if (chip_config < 0) + return chip_config; + + switch (chip_config & MXL86111_EXT_CHIP_CFG_MODE_SEL_MASK) { + case MXL86111_EXT_CHIP_CFG_MODE_UTP_TO_SGMII: + case MXL86111_EXT_CHIP_CFG_MODE_UTP_TO_RGMII: + phydev->port = PORT_TP; + reg_page = MXL86111_EXT_SMI_SDS_PHYUTP_SPACE; + break; + default: + return -EOPNOTSUPP; + } + + ret = mxl86110_write_extended_reg(phydev, + MXL86111_EXT_SMI_SDS_PHY_REG, + reg_page); + if (ret < 0) + return ret; + + return 0; +} + +/** + * mxl86111_config_init() - initialize the MXL86111 PHY + * @phydev: pointer to the phy_device + * + * Return: 0 or negative errno code + */ +static int mxl86111_config_init(struct phy_device *phydev) +{ + int ret; + + phy_lock_mdio_bus(phydev); + + /* configure syncE / clk output */ + ret = mxl86110_synce_clk_cfg(phydev); + if (ret < 0) + goto out; + + switch (phydev->interface) { + case PHY_INTERFACE_MODE_100BASEX: + ret = __mxl86110_modify_extended_reg(phydev, + MXL86111_EXT_MISC_CONFIG_REG, + MXL86111_EXT_MISC_CONFIG_FIB_SPEED_SEL, + MXL86111_EXT_MISC_CONFIG_FIB_SPEED_SEL_100BX); + if (ret < 0) + goto out; + break; + case PHY_INTERFACE_MODE_1000BASEX: + case PHY_INTERFACE_MODE_SGMII: + ret = __mxl86110_modify_extended_reg(phydev, + MXL86111_EXT_MISC_CONFIG_REG, + MXL86111_EXT_MISC_CONFIG_FIB_SPEED_SEL, + MXL86111_EXT_MISC_CONFIG_FIB_SPEED_SEL_1000BX); + if (ret < 0) + goto out; + break; + default: + /* RGMII modes */ + ret = mxl86110_config_rgmii_delay(phydev); + if (ret < 0) + goto out; + ret = __mxl86110_modify_extended_reg(phydev, MXL86110_EXT_RGMII_CFG1_REG, + MXL86110_EXT_RGMII_CFG1_FULL_MASK, ret); + + /* PL P1 requires optimized RGMII timing for 1.8V RGMII voltage + */ + ret = __mxl86110_read_extended_reg(phydev, 0xf); + if (ret < 0) + goto out; + + if (ret == MXL86111_PL_P1) { + ret = __mxl86110_read_extended_reg(phydev, MXL86110_EXT_CHIP_CFG_REG); + if (ret < 0) + goto out; + + /* check if LDO is in 1.8V mode */ + switch (FIELD_GET(MXL86111_EXT_CHIP_CFG_CLDO_MASK, ret)) { + case MXL86111_EXT_CHIP_CFG_CLDO_1V8_3: + case MXL86111_EXT_CHIP_CFG_CLDO_1V8_2: + ret = __mxl86110_write_extended_reg(phydev, 0xa010, 0xabff); + if (ret < 0) + goto out; + break; + default: + break; + } + } + break; + } + + ret = mxl86110_enable_led_activity_blink(phydev); + if (ret < 0) + goto out; + + ret = mxl86110_broadcast_cfg(phydev); +out: + phy_unlock_mdio_bus(phydev); + + return ret; +} + +/** + * mxl86111_read_page() - read reg page + * @phydev: pointer to the phy_device + * + * Return: current reg space of mxl86111 or negative errno code + */ +static int mxl86111_read_page(struct phy_device *phydev) +{ + int page; + + page = __mxl86110_read_extended_reg(phydev, MXL86111_EXT_SMI_SDS_PHY_REG); + if (page < 0) + return page; + + return page & MXL86111_EXT_SMI_SDS_PHYSPACE_MASK; +}; + +/** + * mxl86111_write_page() - Set reg page + * @phydev: pointer to the phy_device + * @page: The reg page to set + * + * Return: 0 or negative errno code + */ +static int mxl86111_write_page(struct phy_device *phydev, int page) +{ + return __mxl86110_modify_extended_reg(phydev, MXL86111_EXT_SMI_SDS_PHY_REG, + MXL86111_EXT_SMI_SDS_PHYSPACE_MASK, page); +}; + +static int mxl86111_config_inband(struct phy_device *phydev, unsigned int modes) +{ + int ret; + + ret = phy_modify_paged(phydev, MXL86111_EXT_SMI_SDS_PHYFIBER_SPACE, + MII_BMCR, BMCR_ANENABLE, + (modes == LINK_INBAND_DISABLE) ? 0 : BMCR_ANENABLE); + if (ret < 0) + goto out; + + phy_lock_mdio_bus(phydev); + + ret = __mxl86110_modify_extended_reg(phydev, MXL86111_EXT_SDS_LINK_TIMER_CFG2_REG, + MXL86111_EXT_SDS_LINK_TIMER_CFG2_EN_AUTOSEN, + (modes == LINK_INBAND_DISABLE) ? 0 : + MXL86111_EXT_SDS_LINK_TIMER_CFG2_EN_AUTOSEN); + if (ret < 0) + goto out; + + ret = __mxl86110_modify_extended_reg(phydev, MXL86110_EXT_CHIP_CFG_REG, + MXL86110_EXT_CHIP_CFG_SW_RST_N_MODE, 0); + if (ret < 0) + goto out; + + /* For fiber forced mode, power down/up to re-aneg */ + if (modes != LINK_INBAND_DISABLE) { + __phy_modify(phydev, MII_BMCR, 0, BMCR_PDOWN); + usleep_range(1000, 1050); + __phy_modify(phydev, MII_BMCR, BMCR_PDOWN, 0); + } + +out: + phy_unlock_mdio_bus(phydev); + + return ret; +} + +static unsigned int mxl86111_inband_caps(struct phy_device *phydev, + phy_interface_t interface) +{ + switch (interface) { + case PHY_INTERFACE_MODE_100BASEX: + case PHY_INTERFACE_MODE_1000BASEX: + case PHY_INTERFACE_MODE_SGMII: + return LINK_INBAND_DISABLE | LINK_INBAND_ENABLE; + default: + return 0; + } +} + static struct phy_driver mxl_phy_drvs[] = { { PHY_ID_MATCH_EXACT(PHY_ID_MXL86110), @@ -596,9 +940,26 @@ static struct phy_driver mxl_phy_drvs[] = { .config_init = mxl86110_config_init, .get_wol = mxl86110_get_wol, .set_wol = mxl86110_set_wol, + .led_brightness_set = mxl86110_led_brightness_set, + .led_hw_is_supported = mxl86110_led_hw_is_supported, + .led_hw_control_get = mxl86110_led_hw_control_get, + .led_hw_control_set = mxl86110_led_hw_control_set, + }, + { + PHY_ID_MATCH_EXACT(PHY_ID_MXL86111), + .name = "MXL86111 Gigabit Ethernet", + .probe = mxl86111_probe, + .config_init = mxl86111_config_init, + .get_wol = mxl86110_get_wol, + .set_wol = mxl86110_set_wol, + .inband_caps = mxl86111_inband_caps, + .config_inband = mxl86111_config_inband, + .read_page = mxl86111_read_page, + .write_page = mxl86111_write_page, + .led_brightness_set = mxl86110_led_brightness_set, .led_hw_is_supported = mxl86110_led_hw_is_supported, - .led_hw_control_get = mxl86110_led_hw_control_get, - .led_hw_control_set = mxl86110_led_hw_control_set, + .led_hw_control_get = mxl86110_led_hw_control_get, + .led_hw_control_set = mxl86110_led_hw_control_set, }, }; @@ -606,11 +967,12 @@ module_phy_driver(mxl_phy_drvs); static const struct mdio_device_id __maybe_unused mxl_tbl[] = { { PHY_ID_MATCH_EXACT(PHY_ID_MXL86110) }, + { PHY_ID_MATCH_EXACT(PHY_ID_MXL86111) }, { } }; MODULE_DEVICE_TABLE(mdio, mxl_tbl); -MODULE_DESCRIPTION("MaxLinear MXL86110 PHY driver"); +MODULE_DESCRIPTION("MaxLinear MXL86110/MXL86111 PHY driver"); MODULE_AUTHOR("Stefano Radaelli"); MODULE_LICENSE("GPL"); |