diff options
author | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-15 14:52:16 -0300 |
---|---|---|
committer | André Fabian Silva Delgado <emulatorman@parabola.nu> | 2015-12-15 14:52:16 -0300 |
commit | 8d91c1e411f55d7ea91b1183a2e9f8088fb4d5be (patch) | |
tree | e9891aa6c295060d065adffd610c4f49ecf884f3 /drivers/net/phy | |
parent | a71852147516bc1cb5b0b3cbd13639bfd4022dc8 (diff) |
Linux-libre 4.3.2-gnu
Diffstat (limited to 'drivers/net/phy')
-rw-r--r-- | drivers/net/phy/Kconfig | 32 | ||||
-rw-r--r-- | drivers/net/phy/Makefile | 4 | ||||
-rw-r--r-- | drivers/net/phy/aquantia.c | 201 | ||||
-rw-r--r-- | drivers/net/phy/dp83640.c | 10 | ||||
-rw-r--r-- | drivers/net/phy/dp83848.c | 99 | ||||
-rw-r--r-- | drivers/net/phy/dp83867.c | 6 | ||||
-rw-r--r-- | drivers/net/phy/fixed_phy.c | 112 | ||||
-rw-r--r-- | drivers/net/phy/marvell.c | 62 | ||||
-rw-r--r-- | drivers/net/phy/mdio-bcm-unimac.c | 1 | ||||
-rw-r--r-- | drivers/net/phy/mdio-gpio.c | 1 | ||||
-rw-r--r-- | drivers/net/phy/mdio-mux-mmioreg.c | 2 | ||||
-rw-r--r-- | drivers/net/phy/mdio-mux.c | 20 | ||||
-rw-r--r-- | drivers/net/phy/mdio-octeon.c | 136 | ||||
-rw-r--r-- | drivers/net/phy/mdio_bus.c | 31 | ||||
-rw-r--r-- | drivers/net/phy/micrel.c | 23 | ||||
-rw-r--r-- | drivers/net/phy/microchip.c | 148 | ||||
-rw-r--r-- | drivers/net/phy/phy.c | 7 | ||||
-rw-r--r-- | drivers/net/phy/phy_device.c | 70 | ||||
-rw-r--r-- | drivers/net/phy/realtek.c | 14 | ||||
-rw-r--r-- | drivers/net/phy/smsc.c | 19 | ||||
-rw-r--r-- | drivers/net/phy/spi_ks8995.c | 22 | ||||
-rw-r--r-- | drivers/net/phy/teranetics.c | 135 | ||||
-rw-r--r-- | drivers/net/phy/vitesse.c | 14 |
23 files changed, 1019 insertions, 150 deletions
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index cb86d7a01..436972b2a 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -14,6 +14,11 @@ if PHYLIB comment "MII PHY device drivers" +config AQUANTIA_PHY + tristate "Drivers for the Aquantia PHYs" + ---help--- + Currently supports the Aquantia AQ1202, AQ2104, AQR105, AQR405 + config AT803X_PHY tristate "Drivers for Atheros AT803X PHYs" ---help--- @@ -54,6 +59,11 @@ config VITESSE_PHY ---help--- Currently supports the vsc8244 +config TERANETICS_PHY + tristate "Drivers for the Teranetics PHYs" + ---help--- + Currently supports the Teranetics TN2020 + config SMSC_PHY tristate "Drivers for SMSC PHYs" ---help--- @@ -112,11 +122,21 @@ config MICREL_PHY ---help--- Supports the KSZ9021, VSC8201, KS8001 PHYs. +config DP83848_PHY + tristate "Driver for Texas Instruments DP83848 PHY" + ---help--- + Supports the DP83848 PHY. + config DP83867_PHY tristate "Drivers for Texas Instruments DP83867 Gigabit PHY" ---help--- Currently supports the DP83867 PHY. +config MICROCHIP_PHY + tristate "Drivers for Microchip PHYs" + help + Supports the LAN88XX PHYs. + config FIXED_PHY tristate "Driver for MDIO Bus/PHY emulation with fixed speed/link PHYs" depends on PHYLIB @@ -145,15 +165,13 @@ config MDIO_GPIO will be called mdio-gpio. config MDIO_OCTEON - tristate "Support for MDIO buses on Octeon SOCs" - depends on CAVIUM_OCTEON_SOC - default y + tristate "Support for MDIO buses on Octeon and ThunderX SOCs" + depends on 64BIT help - This module provides a driver for the Octeon MDIO busses. - It is required by the Octeon Ethernet device drivers. - - If in doubt, say Y. + This module provides a driver for the Octeon and ThunderX MDIO + busses. It is required by the Octeon and ThunderX ethernet device + drivers. config MDIO_SUN4I tristate "Allwinner sun4i MDIO interface support" diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile index fcc25a0c4..b74822463 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile @@ -3,12 +3,14 @@ libphy-objs := phy.o phy_device.o mdio_bus.o obj-$(CONFIG_PHYLIB) += libphy.o +obj-$(CONFIG_AQUANTIA_PHY) += aquantia.o obj-$(CONFIG_MARVELL_PHY) += marvell.o obj-$(CONFIG_DAVICOM_PHY) += davicom.o obj-$(CONFIG_CICADA_PHY) += cicada.o obj-$(CONFIG_LXT_PHY) += lxt.o obj-$(CONFIG_QSEMI_PHY) += qsemi.o obj-$(CONFIG_SMSC_PHY) += smsc.o +obj-$(CONFIG_TERANETICS_PHY) += teranetics.o obj-$(CONFIG_VITESSE_PHY) += vitesse.o obj-$(CONFIG_BROADCOM_PHY) += broadcom.o obj-$(CONFIG_BCM63XX_PHY) += bcm63xx.o @@ -22,6 +24,7 @@ obj-$(CONFIG_MDIO_BITBANG) += mdio-bitbang.o obj-$(CONFIG_MDIO_GPIO) += mdio-gpio.o obj-$(CONFIG_NATIONAL_PHY) += national.o obj-$(CONFIG_DP83640_PHY) += dp83640.o +obj-$(CONFIG_DP83848_PHY) += dp83848.o obj-$(CONFIG_DP83867_PHY) += dp83867.o obj-$(CONFIG_STE10XP) += ste10Xp.o obj-$(CONFIG_MICREL_PHY) += micrel.o @@ -35,3 +38,4 @@ obj-$(CONFIG_MDIO_BUS_MUX_MMIOREG) += mdio-mux-mmioreg.o obj-$(CONFIG_MDIO_SUN4I) += mdio-sun4i.o obj-$(CONFIG_MDIO_MOXART) += mdio-moxart.o obj-$(CONFIG_MDIO_BCM_UNIMAC) += mdio-bcm-unimac.o +obj-$(CONFIG_MICROCHIP_PHY) += microchip.o diff --git a/drivers/net/phy/aquantia.c b/drivers/net/phy/aquantia.c new file mode 100644 index 000000000..d6111affb --- /dev/null +++ b/drivers/net/phy/aquantia.c @@ -0,0 +1,201 @@ +/* + * Driver for Aquantia PHY + * + * Author: Shaohui Xie <Shaohui.Xie@freescale.com> + * + * Copyright 2015 Freescale Semiconductor, Inc. + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/delay.h> +#include <linux/mii.h> +#include <linux/ethtool.h> +#include <linux/phy.h> +#include <linux/mdio.h> + +#define PHY_ID_AQ1202 0x03a1b445 +#define PHY_ID_AQ2104 0x03a1b460 +#define PHY_ID_AQR105 0x03a1b4a2 +#define PHY_ID_AQR405 0x03a1b4b0 + +#define PHY_AQUANTIA_FEATURES (SUPPORTED_10000baseT_Full | \ + SUPPORTED_1000baseT_Full | \ + SUPPORTED_100baseT_Full | \ + PHY_DEFAULT_FEATURES) + +static int aquantia_config_aneg(struct phy_device *phydev) +{ + phydev->supported = PHY_AQUANTIA_FEATURES; + phydev->advertising = phydev->supported; + + return 0; +} + +static int aquantia_aneg_done(struct phy_device *phydev) +{ + int reg; + + reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1); + return (reg < 0) ? reg : (reg & BMSR_ANEGCOMPLETE); +} + +static int aquantia_config_intr(struct phy_device *phydev) +{ + int err; + + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { + err = phy_write_mmd(phydev, MDIO_MMD_AN, 0xd401, 1); + if (err < 0) + return err; + + err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff00, 1); + if (err < 0) + return err; + + err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff01, 0x1001); + } else { + err = phy_write_mmd(phydev, MDIO_MMD_AN, 0xd401, 0); + if (err < 0) + return err; + + err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff00, 0); + if (err < 0) + return err; + + err = phy_write_mmd(phydev, MDIO_MMD_VEND1, 0xff01, 0); + } + + return err; +} + +static int aquantia_ack_interrupt(struct phy_device *phydev) +{ + int reg; + + reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xcc01); + return (reg < 0) ? reg : 0; +} + +static int aquantia_read_status(struct phy_device *phydev) +{ + int reg; + + reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1); + reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1); + if (reg & MDIO_STAT1_LSTATUS) + phydev->link = 1; + else + phydev->link = 0; + + reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xc800); + mdelay(10); + reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xc800); + + switch (reg) { + case 0x9: + phydev->speed = SPEED_2500; + break; + case 0x5: + phydev->speed = SPEED_1000; + break; + case 0x3: + phydev->speed = SPEED_100; + break; + case 0x7: + default: + phydev->speed = SPEED_10000; + break; + } + phydev->duplex = DUPLEX_FULL; + + return 0; +} + +static struct phy_driver aquantia_driver[] = { +{ + .phy_id = PHY_ID_AQ1202, + .phy_id_mask = 0xfffffff0, + .name = "Aquantia AQ1202", + .features = PHY_AQUANTIA_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .aneg_done = aquantia_aneg_done, + .config_aneg = aquantia_config_aneg, + .config_intr = aquantia_config_intr, + .ack_interrupt = aquantia_ack_interrupt, + .read_status = aquantia_read_status, + .driver = { .owner = THIS_MODULE,}, +}, +{ + .phy_id = PHY_ID_AQ2104, + .phy_id_mask = 0xfffffff0, + .name = "Aquantia AQ2104", + .features = PHY_AQUANTIA_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .aneg_done = aquantia_aneg_done, + .config_aneg = aquantia_config_aneg, + .config_intr = aquantia_config_intr, + .ack_interrupt = aquantia_ack_interrupt, + .read_status = aquantia_read_status, + .driver = { .owner = THIS_MODULE,}, +}, +{ + .phy_id = PHY_ID_AQR105, + .phy_id_mask = 0xfffffff0, + .name = "Aquantia AQR105", + .features = PHY_AQUANTIA_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .aneg_done = aquantia_aneg_done, + .config_aneg = aquantia_config_aneg, + .config_intr = aquantia_config_intr, + .ack_interrupt = aquantia_ack_interrupt, + .read_status = aquantia_read_status, + .driver = { .owner = THIS_MODULE,}, +}, +{ + .phy_id = PHY_ID_AQR405, + .phy_id_mask = 0xfffffff0, + .name = "Aquantia AQR405", + .features = PHY_AQUANTIA_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .aneg_done = aquantia_aneg_done, + .config_aneg = aquantia_config_aneg, + .config_intr = aquantia_config_intr, + .ack_interrupt = aquantia_ack_interrupt, + .read_status = aquantia_read_status, + .driver = { .owner = THIS_MODULE,}, +}, +}; + +static int __init aquantia_init(void) +{ + return phy_drivers_register(aquantia_driver, + ARRAY_SIZE(aquantia_driver)); +} + +static void __exit aquantia_exit(void) +{ + return phy_drivers_unregister(aquantia_driver, + ARRAY_SIZE(aquantia_driver)); +} + +module_init(aquantia_init); +module_exit(aquantia_exit); + +static struct mdio_device_id __maybe_unused aquantia_tbl[] = { + { PHY_ID_AQ1202, 0xfffffff0 }, + { PHY_ID_AQ2104, 0xfffffff0 }, + { PHY_ID_AQR105, 0xfffffff0 }, + { PHY_ID_AQR405, 0xfffffff0 }, + { } +}; + +MODULE_DEVICE_TABLE(mdio, aquantia_tbl); + +MODULE_DESCRIPTION("Aquantia PHY driver"); +MODULE_AUTHOR("Shaohui Xie <Shaohui.Xie@freescale.com>"); +MODULE_LICENSE("GPL v2"); diff --git a/drivers/net/phy/dp83640.c b/drivers/net/phy/dp83640.c index 00cb41e71..185b03c08 100644 --- a/drivers/net/phy/dp83640.c +++ b/drivers/net/phy/dp83640.c @@ -1449,17 +1449,9 @@ static int dp83640_ts_info(struct phy_device *dev, struct ethtool_ts_info *info) info->rx_filters = (1 << HWTSTAMP_FILTER_NONE) | (1 << HWTSTAMP_FILTER_PTP_V1_L4_EVENT) | - (1 << HWTSTAMP_FILTER_PTP_V1_L4_SYNC) | - (1 << HWTSTAMP_FILTER_PTP_V1_L4_DELAY_REQ) | (1 << HWTSTAMP_FILTER_PTP_V2_L4_EVENT) | - (1 << HWTSTAMP_FILTER_PTP_V2_L4_SYNC) | - (1 << HWTSTAMP_FILTER_PTP_V2_L4_DELAY_REQ) | (1 << HWTSTAMP_FILTER_PTP_V2_L2_EVENT) | - (1 << HWTSTAMP_FILTER_PTP_V2_L2_SYNC) | - (1 << HWTSTAMP_FILTER_PTP_V2_L2_DELAY_REQ) | - (1 << HWTSTAMP_FILTER_PTP_V2_EVENT) | - (1 << HWTSTAMP_FILTER_PTP_V2_SYNC) | - (1 << HWTSTAMP_FILTER_PTP_V2_DELAY_REQ); + (1 << HWTSTAMP_FILTER_PTP_V2_EVENT); return 0; } diff --git a/drivers/net/phy/dp83848.c b/drivers/net/phy/dp83848.c new file mode 100644 index 000000000..5ce9bef54 --- /dev/null +++ b/drivers/net/phy/dp83848.c @@ -0,0 +1,99 @@ +/* + * Driver for the Texas Instruments DP83848 PHY + * + * Copyright (C) 2015 Texas Instruments Inc. + * + * 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. + * + * 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. + */ + +#include <linux/module.h> +#include <linux/phy.h> + +#define DP83848_PHY_ID 0x20005c90 + +/* Registers */ +#define DP83848_MICR 0x11 +#define DP83848_MISR 0x12 + +/* MICR Register Fields */ +#define DP83848_MICR_INT_OE BIT(0) /* Interrupt Output Enable */ +#define DP83848_MICR_INTEN BIT(1) /* Interrupt Enable */ + +/* MISR Register Fields */ +#define DP83848_MISR_RHF_INT_EN BIT(0) /* Receive Error Counter */ +#define DP83848_MISR_FHF_INT_EN BIT(1) /* False Carrier Counter */ +#define DP83848_MISR_ANC_INT_EN BIT(2) /* Auto-negotiation complete */ +#define DP83848_MISR_DUP_INT_EN BIT(3) /* Duplex Status */ +#define DP83848_MISR_SPD_INT_EN BIT(4) /* Speed status */ +#define DP83848_MISR_LINK_INT_EN BIT(5) /* Link status */ +#define DP83848_MISR_ED_INT_EN BIT(6) /* Energy detect */ +#define DP83848_MISR_LQM_INT_EN BIT(7) /* Link Quality Monitor */ + +static int dp83848_ack_interrupt(struct phy_device *phydev) +{ + int err = phy_read(phydev, DP83848_MISR); + + return err < 0 ? err : 0; +} + +static int dp83848_config_intr(struct phy_device *phydev) +{ + int err; + + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { + err = phy_write(phydev, DP83848_MICR, + DP83848_MICR_INT_OE | + DP83848_MICR_INTEN); + if (err < 0) + return err; + + return phy_write(phydev, DP83848_MISR, + DP83848_MISR_ANC_INT_EN | + DP83848_MISR_DUP_INT_EN | + DP83848_MISR_SPD_INT_EN | + DP83848_MISR_LINK_INT_EN); + } + + return phy_write(phydev, DP83848_MICR, 0x0); +} + +static struct mdio_device_id __maybe_unused dp83848_tbl[] = { + { DP83848_PHY_ID, 0xfffffff0 }, + { } +}; +MODULE_DEVICE_TABLE(mdio, dp83848_tbl); + +static struct phy_driver dp83848_driver[] = { + { + .phy_id = DP83848_PHY_ID, + .phy_id_mask = 0xfffffff0, + .name = "TI DP83848", + .features = PHY_BASIC_FEATURES, + .flags = PHY_HAS_INTERRUPT, + + .soft_reset = genphy_soft_reset, + .config_init = genphy_config_init, + .suspend = genphy_suspend, + .resume = genphy_resume, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + + /* IRQ related */ + .ack_interrupt = dp83848_ack_interrupt, + .config_intr = dp83848_config_intr, + + .driver = { .owner = THIS_MODULE, }, + }, +}; +module_phy_driver(dp83848_driver); + +MODULE_DESCRIPTION("Texas Instruments DP83848 PHY driver"); +MODULE_AUTHOR("Andrew F. Davis <afd@ti.com"); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/phy/dp83867.c b/drivers/net/phy/dp83867.c index 8a3bf5469..32f10662f 100644 --- a/drivers/net/phy/dp83867.c +++ b/drivers/net/phy/dp83867.c @@ -123,12 +123,8 @@ static int dp83867_of_init(struct phy_device *phydev) if (ret) return ret; - ret = of_property_read_u32(of_node, "ti,fifo-depth", + return of_property_read_u32(of_node, "ti,fifo-depth", &dp83867->fifo_depth); - if (ret) - return ret; - - return 0; } #else static int dp83867_of_init(struct phy_device *phydev) diff --git a/drivers/net/phy/fixed_phy.c b/drivers/net/phy/fixed_phy.c index 99d9bc19c..e23bf5b90 100644 --- a/drivers/net/phy/fixed_phy.c +++ b/drivers/net/phy/fixed_phy.c @@ -22,6 +22,7 @@ #include <linux/err.h> #include <linux/slab.h> #include <linux/of.h> +#include <linux/gpio.h> #define MII_REGS_NUM 29 @@ -38,6 +39,7 @@ struct fixed_phy { struct fixed_phy_status status; int (*link_update)(struct net_device *, struct fixed_phy_status *); struct list_head node; + int link_gpio; }; static struct platform_device *pdev; @@ -52,61 +54,87 @@ static int fixed_phy_update_regs(struct fixed_phy *fp) u16 lpagb = 0; u16 lpa = 0; - if (!fp->status.link) - goto done; - bmsr |= BMSR_LSTATUS | BMSR_ANEGCOMPLETE; + if (gpio_is_valid(fp->link_gpio)) + fp->status.link = !!gpio_get_value_cansleep(fp->link_gpio); if (fp->status.duplex) { - bmcr |= BMCR_FULLDPLX; - switch (fp->status.speed) { case 1000: bmsr |= BMSR_ESTATEN; - bmcr |= BMCR_SPEED1000; - lpagb |= LPA_1000FULL; break; case 100: bmsr |= BMSR_100FULL; - bmcr |= BMCR_SPEED100; - lpa |= LPA_100FULL; break; case 10: bmsr |= BMSR_10FULL; - lpa |= LPA_10FULL; break; default: - pr_warn("fixed phy: unknown speed\n"); - return -EINVAL; + break; } } else { switch (fp->status.speed) { case 1000: bmsr |= BMSR_ESTATEN; - bmcr |= BMCR_SPEED1000; - lpagb |= LPA_1000HALF; break; case 100: bmsr |= BMSR_100HALF; - bmcr |= BMCR_SPEED100; - lpa |= LPA_100HALF; break; case 10: bmsr |= BMSR_10HALF; - lpa |= LPA_10HALF; break; default: - pr_warn("fixed phy: unknown speed\n"); - return -EINVAL; + break; } } - if (fp->status.pause) - lpa |= LPA_PAUSE_CAP; + if (fp->status.link) { + bmsr |= BMSR_LSTATUS | BMSR_ANEGCOMPLETE; + + if (fp->status.duplex) { + bmcr |= BMCR_FULLDPLX; + + switch (fp->status.speed) { + case 1000: + bmcr |= BMCR_SPEED1000; + lpagb |= LPA_1000FULL; + break; + case 100: + bmcr |= BMCR_SPEED100; + lpa |= LPA_100FULL; + break; + case 10: + lpa |= LPA_10FULL; + break; + default: + pr_warn("fixed phy: unknown speed\n"); + return -EINVAL; + } + } else { + switch (fp->status.speed) { + case 1000: + bmcr |= BMCR_SPEED1000; + lpagb |= LPA_1000HALF; + break; + case 100: + bmcr |= BMCR_SPEED100; + lpa |= LPA_100HALF; + break; + case 10: + lpa |= LPA_10HALF; + break; + default: + pr_warn("fixed phy: unknown speed\n"); + return -EINVAL; + } + } - if (fp->status.asym_pause) - lpa |= LPA_PAUSE_ASYM; + if (fp->status.pause) + lpa |= LPA_PAUSE_CAP; + + if (fp->status.asym_pause) + lpa |= LPA_PAUSE_ASYM; + } -done: fp->regs[MII_PHYSID1] = 0; fp->regs[MII_PHYSID2] = 0; @@ -192,7 +220,7 @@ int fixed_phy_update_state(struct phy_device *phydev, struct fixed_mdio_bus *fmb = &platform_fmb; struct fixed_phy *fp; - if (!phydev || !phydev->bus) + if (!phydev || phydev->bus != fmb->mii_bus) return -EINVAL; list_for_each_entry(fp, &fmb->phys, node) { @@ -215,7 +243,8 @@ int fixed_phy_update_state(struct phy_device *phydev, EXPORT_SYMBOL(fixed_phy_update_state); int fixed_phy_add(unsigned int irq, int phy_addr, - struct fixed_phy_status *status) + struct fixed_phy_status *status, + int link_gpio) { int ret; struct fixed_mdio_bus *fmb = &platform_fmb; @@ -231,15 +260,26 @@ int fixed_phy_add(unsigned int irq, int phy_addr, fp->addr = phy_addr; fp->status = *status; + fp->link_gpio = link_gpio; + + if (gpio_is_valid(fp->link_gpio)) { + ret = gpio_request_one(fp->link_gpio, GPIOF_DIR_IN, + "fixed-link-gpio-link"); + if (ret) + goto err_regs; + } ret = fixed_phy_update_regs(fp); if (ret) - goto err_regs; + goto err_gpio; list_add_tail(&fp->node, &fmb->phys); return 0; +err_gpio: + if (gpio_is_valid(fp->link_gpio)) + gpio_free(fp->link_gpio); err_regs: kfree(fp); return ret; @@ -254,6 +294,8 @@ void fixed_phy_del(int phy_addr) list_for_each_entry_safe(fp, tmp, &fmb->phys, node) { if (fp->addr == phy_addr) { list_del(&fp->node); + if (gpio_is_valid(fp->link_gpio)) + gpio_free(fp->link_gpio); kfree(fp); return; } @@ -266,6 +308,7 @@ static DEFINE_SPINLOCK(phy_fixed_addr_lock); struct phy_device *fixed_phy_register(unsigned int irq, struct fixed_phy_status *status, + int link_gpio, struct device_node *np) { struct fixed_mdio_bus *fmb = &platform_fmb; @@ -282,7 +325,7 @@ struct phy_device *fixed_phy_register(unsigned int irq, phy_addr = phy_fixed_addr++; spin_unlock(&phy_fixed_addr_lock); - ret = fixed_phy_add(PHY_POLL, phy_addr, status); + ret = fixed_phy_add(irq, phy_addr, status, link_gpio); if (ret < 0) return ERR_PTR(ret); @@ -303,6 +346,19 @@ struct phy_device *fixed_phy_register(unsigned int irq, of_node_get(np); phy->dev.of_node = np; + phy->is_pseudo_fixed_link = true; + + switch (status->speed) { + case SPEED_1000: + phy->supported = PHY_1000BT_FEATURES; + break; + case SPEED_100: + phy->supported = PHY_100BT_FEATURES; + break; + case SPEED_10: + default: + phy->supported = PHY_10BT_FEATURES; + } ret = phy_device_register(phy); if (ret) { diff --git a/drivers/net/phy/marvell.c b/drivers/net/phy/marvell.c index f721444c2..5de8d5827 100644 --- a/drivers/net/phy/marvell.c +++ b/drivers/net/phy/marvell.c @@ -48,8 +48,11 @@ #define MII_M1011_IMASK_CLEAR 0x0000 #define MII_M1011_PHY_SCR 0x10 +#define MII_M1011_PHY_SCR_MDI 0x0000 +#define MII_M1011_PHY_SCR_MDI_X 0x0020 #define MII_M1011_PHY_SCR_AUTO_CROSS 0x0060 +#define MII_M1145_PHY_EXT_ADDR_PAGE 0x16 #define MII_M1145_PHY_EXT_SR 0x1b #define MII_M1145_PHY_EXT_CR 0x14 #define MII_M1145_RGMII_RX_DELAY 0x0080 @@ -159,6 +162,43 @@ static int marvell_config_intr(struct phy_device *phydev) return err; } +static int marvell_set_polarity(struct phy_device *phydev, int polarity) +{ + int reg; + int err; + int val; + + /* get the current settings */ + reg = phy_read(phydev, MII_M1011_PHY_SCR); + if (reg < 0) + return reg; + + val = reg; + val &= ~MII_M1011_PHY_SCR_AUTO_CROSS; + switch (polarity) { + case ETH_TP_MDI: + val |= MII_M1011_PHY_SCR_MDI; + break; + case ETH_TP_MDI_X: + val |= MII_M1011_PHY_SCR_MDI_X; + break; + case ETH_TP_MDI_AUTO: + case ETH_TP_MDI_INVALID: + default: + val |= MII_M1011_PHY_SCR_AUTO_CROSS; + break; + } + + if (val != reg) { + /* Set the new polarity value in the register */ + err = phy_write(phydev, MII_M1011_PHY_SCR, val); + if (err) + return err; + } + + return 0; +} + static int marvell_config_aneg(struct phy_device *phydev) { int err; @@ -191,8 +231,7 @@ static int marvell_config_aneg(struct phy_device *phydev) if (err < 0) return err; - err = phy_write(phydev, MII_M1011_PHY_SCR, - MII_M1011_PHY_SCR_AUTO_CROSS); + err = marvell_set_polarity(phydev, phydev->mdix); if (err < 0) return err; @@ -514,6 +553,16 @@ static int m88e1111_config_init(struct phy_device *phydev) err = phy_write(phydev, MII_M1111_PHY_EXT_SR, temp); if (err < 0) return err; + + /* make sure copper is selected */ + err = phy_read(phydev, MII_M1145_PHY_EXT_ADDR_PAGE); + if (err < 0) + return err; + + err = phy_write(phydev, MII_M1145_PHY_EXT_ADDR_PAGE, + err & (~0xff)); + if (err < 0) + return err; } if (phydev->interface == PHY_INTERFACE_MODE_RTBI) { @@ -736,6 +785,7 @@ static int marvell_read_status(struct phy_device *phydev) int adv; int err; int lpa; + int lpagb; int status = 0; /* Update the link, but return if there @@ -753,10 +803,17 @@ static int marvell_read_status(struct phy_device *phydev) if (lpa < 0) return lpa; + lpagb = phy_read(phydev, MII_STAT1000); + if (lpagb < 0) + return lpagb; + adv = phy_read(phydev, MII_ADVERTISE); if (adv < 0) return adv; + phydev->lp_advertising = mii_stat1000_to_ethtool_lpa_t(lpagb) | + mii_lpa_to_ethtool_lpa_t(lpa); + lpa &= adv; if (status & MII_M1011_PHY_STATUS_FULLDUPLEX) @@ -804,6 +861,7 @@ static int marvell_read_status(struct phy_device *phydev) phydev->speed = SPEED_10; phydev->pause = phydev->asym_pause = 0; + phydev->lp_advertising = 0; } return 0; diff --git a/drivers/net/phy/mdio-bcm-unimac.c b/drivers/net/phy/mdio-bcm-unimac.c index 6a52a7f0f..4bde5e728 100644 --- a/drivers/net/phy/mdio-bcm-unimac.c +++ b/drivers/net/phy/mdio-bcm-unimac.c @@ -244,6 +244,7 @@ static const struct of_device_id unimac_mdio_ids[] = { { .compatible = "brcm,unimac-mdio", }, { /* sentinel */ }, }; +MODULE_DEVICE_TABLE(of, unimac_mdio_ids); static struct platform_driver unimac_mdio_driver = { .driver = { diff --git a/drivers/net/phy/mdio-gpio.c b/drivers/net/phy/mdio-gpio.c index 7dc21e56a..3bc9f0334 100644 --- a/drivers/net/phy/mdio-gpio.c +++ b/drivers/net/phy/mdio-gpio.c @@ -261,6 +261,7 @@ static const struct of_device_id mdio_gpio_of_match[] = { { .compatible = "virtual,mdio-gpio", }, { /* sentinel */ } }; +MODULE_DEVICE_TABLE(of, mdio_gpio_of_match); static struct platform_driver mdio_gpio_driver = { .probe = mdio_gpio_probe, diff --git a/drivers/net/phy/mdio-mux-mmioreg.c b/drivers/net/phy/mdio-mux-mmioreg.c index 2377c1341..7fde454fb 100644 --- a/drivers/net/phy/mdio-mux-mmioreg.c +++ b/drivers/net/phy/mdio-mux-mmioreg.c @@ -113,12 +113,14 @@ static int mdio_mux_mmioreg_probe(struct platform_device *pdev) if (!iprop || len != sizeof(uint32_t)) { dev_err(&pdev->dev, "mdio-mux child node %s is " "missing a 'reg' property\n", np2->full_name); + of_node_put(np2); return -ENODEV; } if (be32_to_cpup(iprop) & ~s->mask) { dev_err(&pdev->dev, "mdio-mux child node %s has " "a 'reg' value with unmasked bits\n", np2->full_name); + of_node_put(np2); return -ENODEV; } } diff --git a/drivers/net/phy/mdio-mux.c b/drivers/net/phy/mdio-mux.c index 4d4d25efc..908e8d486 100644 --- a/drivers/net/phy/mdio-mux.c +++ b/drivers/net/phy/mdio-mux.c @@ -113,18 +113,18 @@ int mdio_mux_init(struct device *dev, if (!parent_bus_node) return -ENODEV; - parent_bus = of_mdio_find_bus(parent_bus_node); - if (parent_bus == NULL) { - ret_val = -EPROBE_DEFER; - goto err_parent_bus; - } - pb = devm_kzalloc(dev, sizeof(*pb), GFP_KERNEL); if (pb == NULL) { ret_val = -ENOMEM; goto err_parent_bus; } + parent_bus = of_mdio_find_bus(parent_bus_node); + if (parent_bus == NULL) { + ret_val = -EPROBE_DEFER; + goto err_parent_bus; + } + pb->switch_data = data; pb->switch_fn = switch_fn; pb->current_child = -1; @@ -144,6 +144,7 @@ int mdio_mux_init(struct device *dev, dev_err(dev, "Error: Failed to allocate memory for child\n"); ret_val = -ENOMEM; + of_node_put(child_bus_node); break; } cb->bus_number = v; @@ -173,6 +174,10 @@ int mdio_mux_init(struct device *dev, dev_info(dev, "Version " DRV_VERSION "\n"); return 0; } + + /* balance the reference of_mdio_find_bus() took */ + put_device(&pb->mii_bus->dev); + err_parent_bus: of_node_put(parent_bus_node); return ret_val; @@ -189,6 +194,9 @@ void mdio_mux_uninit(void *mux_handle) mdiobus_free(cb->mii_bus); cb = cb->next; } + + /* balance the reference of_mdio_find_bus() in mdio_mux_init() took */ + put_device(&pb->mii_bus->dev); } EXPORT_SYMBOL_GPL(mdio_mux_uninit); diff --git a/drivers/net/phy/mdio-octeon.c b/drivers/net/phy/mdio-octeon.c index c838ad615..fcf4e4df7 100644 --- a/drivers/net/phy/mdio-octeon.c +++ b/drivers/net/phy/mdio-octeon.c @@ -7,6 +7,7 @@ */ #include <linux/platform_device.h> +#include <linux/of_address.h> #include <linux/of_mdio.h> #include <linux/delay.h> #include <linux/module.h> @@ -14,11 +15,12 @@ #include <linux/phy.h> #include <linux/io.h> +#ifdef CONFIG_CAVIUM_OCTEON_SOC #include <asm/octeon/octeon.h> -#include <asm/octeon/cvmx-smix-defs.h> +#endif -#define DRV_VERSION "1.0" -#define DRV_DESCRIPTION "Cavium Networks Octeon SMI/MDIO driver" +#define DRV_VERSION "1.1" +#define DRV_DESCRIPTION "Cavium Networks Octeon/ThunderX SMI/MDIO driver" #define SMI_CMD 0x0 #define SMI_WR_DAT 0x8 @@ -26,6 +28,79 @@ #define SMI_CLK 0x18 #define SMI_EN 0x20 +#ifdef __BIG_ENDIAN_BITFIELD +#define OCT_MDIO_BITFIELD_FIELD(field, more) \ + field; \ + more + +#else +#define OCT_MDIO_BITFIELD_FIELD(field, more) \ + more \ + field; + +#endif + +union cvmx_smix_clk { + u64 u64; + struct cvmx_smix_clk_s { + OCT_MDIO_BITFIELD_FIELD(u64 reserved_25_63:39, + OCT_MDIO_BITFIELD_FIELD(u64 mode:1, + OCT_MDIO_BITFIELD_FIELD(u64 reserved_21_23:3, + OCT_MDIO_BITFIELD_FIELD(u64 sample_hi:5, + OCT_MDIO_BITFIELD_FIELD(u64 sample_mode:1, + OCT_MDIO_BITFIELD_FIELD(u64 reserved_14_14:1, + OCT_MDIO_BITFIELD_FIELD(u64 clk_idle:1, + OCT_MDIO_BITFIELD_FIELD(u64 preamble:1, + OCT_MDIO_BITFIELD_FIELD(u64 sample:4, + OCT_MDIO_BITFIELD_FIELD(u64 phase:8, + ;)))))))))) + } s; +}; + +union cvmx_smix_cmd { + u64 u64; + struct cvmx_smix_cmd_s { + OCT_MDIO_BITFIELD_FIELD(u64 reserved_18_63:46, + OCT_MDIO_BITFIELD_FIELD(u64 phy_op:2, + OCT_MDIO_BITFIELD_FIELD(u64 reserved_13_15:3, + OCT_MDIO_BITFIELD_FIELD(u64 phy_adr:5, + OCT_MDIO_BITFIELD_FIELD(u64 reserved_5_7:3, + OCT_MDIO_BITFIELD_FIELD(u64 reg_adr:5, + ;)))))) + } s; +}; + +union cvmx_smix_en { + u64 u64; + struct cvmx_smix_en_s { + OCT_MDIO_BITFIELD_FIELD(u64 reserved_1_63:63, + OCT_MDIO_BITFIELD_FIELD(u64 en:1, + ;)) + } s; +}; + +union cvmx_smix_rd_dat { + u64 u64; + struct cvmx_smix_rd_dat_s { + OCT_MDIO_BITFIELD_FIELD(u64 reserved_18_63:46, + OCT_MDIO_BITFIELD_FIELD(u64 pending:1, + OCT_MDIO_BITFIELD_FIELD(u64 val:1, + OCT_MDIO_BITFIELD_FIELD(u64 dat:16, + ;)))) + } s; +}; + +union cvmx_smix_wr_dat { + u64 u64; + struct cvmx_smix_wr_dat_s { + OCT_MDIO_BITFIELD_FIELD(u64 reserved_18_63:46, + OCT_MDIO_BITFIELD_FIELD(u64 pending:1, + OCT_MDIO_BITFIELD_FIELD(u64 val:1, + OCT_MDIO_BITFIELD_FIELD(u64 dat:16, + ;)))) + } s; +}; + enum octeon_mdiobus_mode { UNINIT = 0, C22, @@ -41,6 +116,21 @@ struct octeon_mdiobus { int phy_irq[PHY_MAX_ADDR]; }; +#ifdef CONFIG_CAVIUM_OCTEON_SOC +static void oct_mdio_writeq(u64 val, u64 addr) +{ + cvmx_write_csr(addr, val); +} + +static u64 oct_mdio_readq(u64 addr) +{ + return cvmx_read_csr(addr); +} +#else +#define oct_mdio_writeq(val, addr) writeq_relaxed(val, (void *)addr) +#define oct_mdio_readq(addr) readq_relaxed((void *)addr) +#endif + static void octeon_mdiobus_set_mode(struct octeon_mdiobus *p, enum octeon_mdiobus_mode m) { @@ -49,10 +139,10 @@ static void octeon_mdiobus_set_mode(struct octeon_mdiobus *p, if (m == p->mode) return; - smi_clk.u64 = cvmx_read_csr(p->register_base + SMI_CLK); + smi_clk.u64 = oct_mdio_readq(p->register_base + SMI_CLK); smi_clk.s.mode = (m == C45) ? 1 : 0; smi_clk.s.preamble = 1; - cvmx_write_csr(p->register_base + SMI_CLK, smi_clk.u64); + oct_mdio_writeq(smi_clk.u64, p->register_base + SMI_CLK); p->mode = m; } @@ -67,7 +157,7 @@ static int octeon_mdiobus_c45_addr(struct octeon_mdiobus *p, smi_wr.u64 = 0; smi_wr.s.dat = regnum & 0xffff; - cvmx_write_csr(p->register_base + SMI_WR_DAT, smi_wr.u64); + oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT); regnum = (regnum >> 16) & 0x1f; @@ -75,14 +165,14 @@ static int octeon_mdiobus_c45_addr(struct octeon_mdiobus *p, smi_cmd.s.phy_op = 0; /* MDIO_CLAUSE_45_ADDRESS */ smi_cmd.s.phy_adr = phy_id; smi_cmd.s.reg_adr = regnum; - cvmx_write_csr(p->register_base + SMI_CMD, smi_cmd.u64); + oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD); do { /* Wait 1000 clocks so we don't saturate the RSL bus * doing reads. */ __delay(1000); - smi_wr.u64 = cvmx_read_csr(p->register_base + SMI_WR_DAT); + smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT); } while (smi_wr.s.pending && --timeout); if (timeout <= 0) @@ -114,14 +204,14 @@ static int octeon_mdiobus_read(struct mii_bus *bus, int phy_id, int regnum) smi_cmd.s.phy_op = op; smi_cmd.s.phy_adr = phy_id; smi_cmd.s.reg_adr = regnum; - cvmx_write_csr(p->register_base + SMI_CMD, smi_cmd.u64); + oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD); do { /* Wait 1000 clocks so we don't saturate the RSL bus * doing reads. */ __delay(1000); - smi_rd.u64 = cvmx_read_csr(p->register_base + SMI_RD_DAT); + smi_rd.u64 = oct_mdio_readq(p->register_base + SMI_RD_DAT); } while (smi_rd.s.pending && --timeout); if (smi_rd.s.val) @@ -153,20 +243,20 @@ static int octeon_mdiobus_write(struct mii_bus *bus, int phy_id, smi_wr.u64 = 0; smi_wr.s.dat = val; - cvmx_write_csr(p->register_base + SMI_WR_DAT, smi_wr.u64); + oct_mdio_writeq(smi_wr.u64, p->register_base + SMI_WR_DAT); smi_cmd.u64 = 0; smi_cmd.s.phy_op = op; smi_cmd.s.phy_adr = phy_id; smi_cmd.s.reg_adr = regnum; - cvmx_write_csr(p->register_base + SMI_CMD, smi_cmd.u64); + oct_mdio_writeq(smi_cmd.u64, p->register_base + SMI_CMD); do { /* Wait 1000 clocks so we don't saturate the RSL bus * doing reads. */ __delay(1000); - smi_wr.u64 = cvmx_read_csr(p->register_base + SMI_WR_DAT); + smi_wr.u64 = oct_mdio_readq(p->register_base + SMI_WR_DAT); } while (smi_wr.s.pending && --timeout); if (timeout <= 0) @@ -187,30 +277,34 @@ static int octeon_mdiobus_probe(struct platform_device *pdev) return -ENOMEM; res_mem = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (res_mem == NULL) { dev_err(&pdev->dev, "found no memory resource\n"); - err = -ENXIO; - goto fail; + return -ENXIO; } + bus->mdio_phys = res_mem->start; bus->regsize = resource_size(res_mem); + if (!devm_request_mem_region(&pdev->dev, bus->mdio_phys, bus->regsize, res_mem->name)) { dev_err(&pdev->dev, "request_mem_region failed\n"); - goto fail; + return -ENXIO; } + bus->register_base = (u64)devm_ioremap(&pdev->dev, bus->mdio_phys, bus->regsize); + if (!bus->register_base) { + dev_err(&pdev->dev, "dev_ioremap failed\n"); + return -ENOMEM; + } bus->mii_bus = mdiobus_alloc(); - if (!bus->mii_bus) goto fail; smi_en.u64 = 0; smi_en.s.en = 1; - cvmx_write_csr(bus->register_base + SMI_EN, smi_en.u64); + oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN); bus->mii_bus->priv = bus; bus->mii_bus->irq = bus->phy_irq; @@ -234,7 +328,7 @@ fail_register: mdiobus_free(bus->mii_bus); fail: smi_en.u64 = 0; - cvmx_write_csr(bus->register_base + SMI_EN, smi_en.u64); + oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN); return err; } @@ -248,7 +342,7 @@ static int octeon_mdiobus_remove(struct platform_device *pdev) mdiobus_unregister(bus->mii_bus); mdiobus_free(bus->mii_bus); smi_en.u64 = 0; - cvmx_write_csr(bus->register_base + SMI_EN, smi_en.u64); + oct_mdio_writeq(smi_en.u64, bus->register_base + SMI_EN); return 0; } diff --git a/drivers/net/phy/mdio_bus.c b/drivers/net/phy/mdio_bus.c index 02a4615b6..12f44c53c 100644 --- a/drivers/net/phy/mdio_bus.c +++ b/drivers/net/phy/mdio_bus.c @@ -167,7 +167,9 @@ static int of_mdio_bus_match(struct device *dev, const void *mdio_bus_np) * of_mdio_find_bus - Given an mii_bus node, find the mii_bus. * @mdio_bus_np: Pointer to the mii_bus. * - * Returns a pointer to the mii_bus, or NULL if none found. + * Returns a reference to the mii_bus, or NULL if none found. The + * embedded struct device will have its reference count incremented, + * and this must be put once the bus is finished with. * * Because the association of a device_node and mii_bus is made via * of_mdiobus_register(), the mii_bus cannot be found before it is @@ -234,15 +236,18 @@ static inline void of_mdiobus_link_phydev(struct mii_bus *mdio, #endif /** - * mdiobus_register - bring up all the PHYs on a given bus and attach them to bus + * __mdiobus_register - bring up all the PHYs on a given bus and attach them to bus * @bus: target mii_bus + * @owner: module containing bus accessor functions * * Description: Called by a bus driver to bring up all the PHYs - * on a given bus, and attach them to the bus. + * on a given bus, and attach them to the bus. Drivers should use + * mdiobus_register() rather than __mdiobus_register() unless they + * need to pass a specific owner module. * * Returns 0 on success or < 0 on error. */ -int mdiobus_register(struct mii_bus *bus) +int __mdiobus_register(struct mii_bus *bus, struct module *owner) { int i, err; @@ -253,6 +258,7 @@ int mdiobus_register(struct mii_bus *bus) BUG_ON(bus->state != MDIOBUS_ALLOCATED && bus->state != MDIOBUS_UNREGISTERED); + bus->owner = owner; bus->dev.parent = bus->parent; bus->dev.class = &mdio_bus_class; bus->dev.groups = NULL; @@ -288,13 +294,16 @@ int mdiobus_register(struct mii_bus *bus) error: while (--i >= 0) { - if (bus->phy_map[i]) - device_unregister(&bus->phy_map[i]->dev); + struct phy_device *phydev = bus->phy_map[i]; + if (phydev) { + phy_device_remove(phydev); + phy_device_free(phydev); + } } device_del(&bus->dev); return err; } -EXPORT_SYMBOL(mdiobus_register); +EXPORT_SYMBOL(__mdiobus_register); void mdiobus_unregister(struct mii_bus *bus) { @@ -304,9 +313,11 @@ void mdiobus_unregister(struct mii_bus *bus) bus->state = MDIOBUS_UNREGISTERED; for (i = 0; i < PHY_MAX_ADDR; i++) { - if (bus->phy_map[i]) - device_unregister(&bus->phy_map[i]->dev); - bus->phy_map[i] = NULL; + struct phy_device *phydev = bus->phy_map[i]; + if (phydev) { + phy_device_remove(phydev); + phy_device_free(phydev); + } } device_del(&bus->dev); } diff --git a/drivers/net/phy/micrel.c b/drivers/net/phy/micrel.c index 499185eaf..cf6312faf 100644 --- a/drivers/net/phy/micrel.c +++ b/drivers/net/phy/micrel.c @@ -514,6 +514,27 @@ static int ksz8873mll_read_status(struct phy_device *phydev) return 0; } +static int ksz9031_read_status(struct phy_device *phydev) +{ + int err; + int regval; + + err = genphy_read_status(phydev); + if (err) + return err; + + /* Make sure the PHY is not broken. Read idle error count, + * and reset the PHY if it is maxed out. + */ + regval = phy_read(phydev, MII_STAT1000); + if ((regval & 0xFF) == 0xFF) { + phy_init_hw(phydev); + phydev->link = 0; + } + + return 0; +} + static int ksz8873mll_config_aneg(struct phy_device *phydev) { return 0; @@ -772,7 +793,7 @@ static struct phy_driver ksphy_driver[] = { .driver_data = &ksz9021_type, .config_init = ksz9031_config_init, .config_aneg = genphy_config_aneg, - .read_status = genphy_read_status, + .read_status = ksz9031_read_status, .ack_interrupt = kszphy_ack_interrupt, .config_intr = kszphy_config_intr, .suspend = genphy_suspend, diff --git a/drivers/net/phy/microchip.c b/drivers/net/phy/microchip.c new file mode 100644 index 000000000..c0a20ebd0 --- /dev/null +++ b/drivers/net/phy/microchip.c @@ -0,0 +1,148 @@ +/* + * Copyright (C) 2015 Microchip Technology + * + * 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, see <http://www.gnu.org/licenses/>. + */ +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/mii.h> +#include <linux/ethtool.h> +#include <linux/phy.h> +#include <linux/microchipphy.h> + +#define DRIVER_AUTHOR "WOOJUNG HUH <woojung.huh@microchip.com>" +#define DRIVER_DESC "Microchip LAN88XX PHY driver" + +struct lan88xx_priv { + int chip_id; + int chip_rev; + __u32 wolopts; +}; + +static int lan88xx_phy_config_intr(struct phy_device *phydev) +{ + int rc; + + if (phydev->interrupts == PHY_INTERRUPT_ENABLED) { + /* unmask all source and clear them before enable */ + rc = phy_write(phydev, LAN88XX_INT_MASK, 0x7FFF); + rc = phy_read(phydev, LAN88XX_INT_STS); + rc = phy_write(phydev, LAN88XX_INT_MASK, + LAN88XX_INT_MASK_MDINTPIN_EN_ | + LAN88XX_INT_MASK_LINK_CHANGE_); + } else { + rc = phy_write(phydev, LAN88XX_INT_MASK, 0); + } + + return rc < 0 ? rc : 0; +} + +static int lan88xx_phy_ack_interrupt(struct phy_device *phydev) +{ + int rc = phy_read(phydev, LAN88XX_INT_STS); + + return rc < 0 ? rc : 0; +} + +int lan88xx_suspend(struct phy_device *phydev) +{ + struct lan88xx_priv *priv = phydev->priv; + + /* do not power down PHY when WOL is enabled */ + if (!priv->wolopts) + genphy_suspend(phydev); + + return 0; +} + +static int lan88xx_probe(struct phy_device *phydev) +{ + struct device *dev = &phydev->dev; + struct lan88xx_priv *priv; + + priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL); + if (!priv) + return -ENOMEM; + + priv->wolopts = 0; + + /* these values can be used to identify internal PHY */ + priv->chip_id = phy_read_mmd_indirect(phydev, LAN88XX_MMD3_CHIP_ID, + 3, phydev->addr); + priv->chip_rev = phy_read_mmd_indirect(phydev, LAN88XX_MMD3_CHIP_REV, + 3, phydev->addr); + + phydev->priv = priv; + + return 0; +} + +static void lan88xx_remove(struct phy_device *phydev) +{ + struct device *dev = &phydev->dev; + struct lan88xx_priv *priv = phydev->priv; + + if (priv) + devm_kfree(dev, priv); +} + +static int lan88xx_set_wol(struct phy_device *phydev, + struct ethtool_wolinfo *wol) +{ + struct lan88xx_priv *priv = phydev->priv; + + priv->wolopts = wol->wolopts; + + return 0; +} + +static struct phy_driver microchip_phy_driver[] = { +{ + .phy_id = 0x0007c130, + .phy_id_mask = 0xfffffff0, + .name = "Microchip LAN88xx", + + .features = (PHY_GBIT_FEATURES | + SUPPORTED_Pause | SUPPORTED_Asym_Pause), + .flags = PHY_HAS_INTERRUPT | PHY_HAS_MAGICANEG, + + .probe = lan88xx_probe, + .remove = lan88xx_remove, + + .config_init = genphy_config_init, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + + .ack_interrupt = lan88xx_phy_ack_interrupt, + .config_intr = lan88xx_phy_config_intr, + + .suspend = lan88xx_suspend, + .resume = genphy_resume, + .set_wol = lan88xx_set_wol, + + .driver = { .owner = THIS_MODULE, } +} }; + +module_phy_driver(microchip_phy_driver); + +static struct mdio_device_id __maybe_unused microchip_tbl[] = { + { 0x0007c130, 0xfffffff0 }, + { } +}; + +MODULE_DEVICE_TABLE(mdio, microchip_tbl); + +MODULE_AUTHOR(DRIVER_AUTHOR); +MODULE_DESCRIPTION(DRIVER_DESC); +MODULE_LICENSE("GPL"); diff --git a/drivers/net/phy/phy.c b/drivers/net/phy/phy.c index 34fe339f4..adb48abaf 100644 --- a/drivers/net/phy/phy.c +++ b/drivers/net/phy/phy.c @@ -353,6 +353,8 @@ int phy_ethtool_sset(struct phy_device *phydev, struct ethtool_cmd *cmd) phydev->duplex = cmd->duplex; + phydev->mdix = cmd->eth_tp_mdix_ctrl; + /* Restart the PHY */ phy_start_aneg(phydev); @@ -377,6 +379,7 @@ int phy_ethtool_gset(struct phy_device *phydev, struct ethtool_cmd *cmd) cmd->transceiver = phy_is_internal(phydev) ? XCVR_INTERNAL : XCVR_EXTERNAL; cmd->autoneg = phydev->autoneg; + cmd->eth_tp_mdix_ctrl = phydev->mdix; return 0; } @@ -1037,7 +1040,7 @@ int phy_read_mmd_indirect(struct phy_device *phydev, int prtad, struct phy_driver *phydrv = phydev->drv; int value = -1; - if (phydrv->read_mmd_indirect == NULL) { + if (!phydrv->read_mmd_indirect) { struct mii_bus *bus = phydev->bus; mutex_lock(&bus->mdio_lock); @@ -1074,7 +1077,7 @@ void phy_write_mmd_indirect(struct phy_device *phydev, int prtad, { struct phy_driver *phydrv = phydev->drv; - if (phydrv->write_mmd_indirect == NULL) { + if (!phydrv->write_mmd_indirect) { struct mii_bus *bus = phydev->bus; mutex_lock(&bus->mdio_lock); diff --git a/drivers/net/phy/phy_device.c b/drivers/net/phy/phy_device.c index 55f01788d..f761288ab 100644 --- a/drivers/net/phy/phy_device.c +++ b/drivers/net/phy/phy_device.c @@ -156,8 +156,8 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id, /* We allocate the device, and initialize the default values */ dev = kzalloc(sizeof(*dev), GFP_KERNEL); - if (NULL == dev) - return (struct phy_device *)PTR_ERR((void *)-ENOMEM); + if (!dev) + return ERR_PTR(-ENOMEM); dev->dev.release = phy_device_release; @@ -178,7 +178,7 @@ struct phy_device *phy_device_create(struct mii_bus *bus, int addr, int phy_id, dev->bus = bus; dev->dev.parent = &bus->dev; dev->dev.bus = &mdio_bus_type; - dev->irq = bus->irq != NULL ? bus->irq[addr] : PHY_POLL; + dev->irq = bus->irq ? bus->irq[addr] : PHY_POLL; dev_set_name(&dev->dev, PHY_ID_FMT, bus->id, addr); dev->state = PHY_DOWN; @@ -384,6 +384,24 @@ int phy_device_register(struct phy_device *phydev) EXPORT_SYMBOL(phy_device_register); /** + * phy_device_remove - Remove a previously registered phy device from the MDIO bus + * @phydev: phy_device structure to remove + * + * This doesn't free the phy_device itself, it merely reverses the effects + * of phy_device_register(). Use phy_device_free() to free the device + * after calling this function. + */ +void phy_device_remove(struct phy_device *phydev) +{ + struct mii_bus *bus = phydev->bus; + int addr = phydev->addr; + + device_del(&phydev->dev); + bus->phy_map[addr] = NULL; +} +EXPORT_SYMBOL(phy_device_remove); + +/** * phy_find_first - finds the first PHY device on the bus * @bus: the target MII bus */ @@ -578,18 +596,26 @@ EXPORT_SYMBOL(phy_init_hw); * generic driver is used. The phy_device is given a ptr to * the attaching device, and given a callback for link status * change. The phy_device is returned to the attaching driver. + * This function takes a reference on the phy device. */ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, u32 flags, phy_interface_t interface) { + struct mii_bus *bus = phydev->bus; struct device *d = &phydev->dev; - struct module *bus_module; int err; + if (!try_module_get(bus->owner)) { + dev_err(&dev->dev, "failed to get the bus module\n"); + return -EIO; + } + + get_device(d); + /* Assume that if there is no driver, that it doesn't * exist, and we should use the genphy driver. */ - if (NULL == d->driver) { + if (!d->driver) { if (phydev->is_c45) d->driver = &genphy_driver[GENPHY_DRV_10G].driver; else @@ -600,20 +626,13 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, err = device_bind_driver(d); if (err) - return err; + goto error; } if (phydev->attached_dev) { dev_err(&dev->dev, "PHY already attached\n"); - return -EBUSY; - } - - /* Increment the bus module reference count */ - bus_module = phydev->bus->dev.driver ? - phydev->bus->dev.driver->owner : NULL; - if (!try_module_get(bus_module)) { - dev_err(&dev->dev, "failed to get the bus module\n"); - return -EIO; + err = -EBUSY; + goto error; } phydev->attached_dev = dev; @@ -636,6 +655,11 @@ int phy_attach_direct(struct net_device *dev, struct phy_device *phydev, phy_resume(phydev); return err; + +error: + put_device(d); + module_put(bus->owner); + return err; } EXPORT_SYMBOL(phy_attach_direct); @@ -677,14 +701,15 @@ EXPORT_SYMBOL(phy_attach); /** * phy_detach - detach a PHY device from its network device * @phydev: target phy_device struct + * + * This detaches the phy device from its network device and the phy + * driver, and drops the reference count taken in phy_attach_direct(). */ void phy_detach(struct phy_device *phydev) { + struct mii_bus *bus; int i; - if (phydev->bus->dev.driver) - module_put(phydev->bus->dev.driver->owner); - phydev->attached_dev->phydev = NULL; phydev->attached_dev = NULL; phy_suspend(phydev); @@ -700,6 +725,15 @@ void phy_detach(struct phy_device *phydev) break; } } + + /* + * The phydev might go away on the put_device() below, so avoid + * a use-after-free bug by reading the underlying bus first. + */ + bus = phydev->bus; + + put_device(&phydev->dev); + module_put(bus->owner); } EXPORT_SYMBOL(phy_detach); diff --git a/drivers/net/phy/realtek.c b/drivers/net/phy/realtek.c index 45353613b..43ab69136 100644 --- a/drivers/net/phy/realtek.c +++ b/drivers/net/phy/realtek.c @@ -137,6 +137,19 @@ static struct phy_driver realtek_drvs[] = { .config_intr = &rtl8211b_config_intr, .driver = { .owner = THIS_MODULE,}, }, { + .phy_id = 0x001cc914, + .name = "RTL8211DN Gigabit Ethernet", + .phy_id_mask = 0x001fffff, + .features = PHY_GBIT_FEATURES, + .flags = PHY_HAS_INTERRUPT, + .config_aneg = genphy_config_aneg, + .read_status = genphy_read_status, + .ack_interrupt = rtl821x_ack_interrupt, + .config_intr = rtl8211e_config_intr, + .suspend = genphy_suspend, + .resume = genphy_resume, + .driver = { .owner = THIS_MODULE,}, + }, { .phy_id = 0x001cc915, .name = "RTL8211E Gigabit Ethernet", .phy_id_mask = 0x001fffff, @@ -170,6 +183,7 @@ module_phy_driver(realtek_drvs); static struct mdio_device_id __maybe_unused realtek_tbl[] = { { 0x001cc912, 0x001fffff }, + { 0x001cc914, 0x001fffff }, { 0x001cc915, 0x001fffff }, { 0x001cc916, 0x001fffff }, { } diff --git a/drivers/net/phy/smsc.c b/drivers/net/phy/smsc.c index 70b089587..dc2da8770 100644 --- a/drivers/net/phy/smsc.c +++ b/drivers/net/phy/smsc.c @@ -43,16 +43,25 @@ static int smsc_phy_ack_interrupt(struct phy_device *phydev) static int smsc_phy_config_init(struct phy_device *phydev) { + int __maybe_unused len; + struct device *dev __maybe_unused = &phydev->dev; + struct device_node *of_node __maybe_unused = dev->of_node; int rc = phy_read(phydev, MII_LAN83C185_CTRL_STATUS); + int enable_energy = 1; if (rc < 0) return rc; - /* Enable energy detect mode for this SMSC Transceivers */ - rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS, - rc | MII_LAN83C185_EDPWRDOWN); - if (rc < 0) - return rc; + if (of_find_property(of_node, "smsc,disable-energy-detect", &len)) + enable_energy = 0; + + if (enable_energy) { + /* Enable energy detect mode for this SMSC Transceivers */ + rc = phy_write(phydev, MII_LAN83C185_CTRL_STATUS, + rc | MII_LAN83C185_EDPWRDOWN); + if (rc < 0) + return rc; + } return smsc_phy_ack_interrupt(phydev); } diff --git a/drivers/net/phy/spi_ks8995.c b/drivers/net/phy/spi_ks8995.c index 465301592..f091d691c 100644 --- a/drivers/net/phy/spi_ks8995.c +++ b/drivers/net/phy/spi_ks8995.c @@ -209,8 +209,6 @@ static int ks8995_reset(struct ks8995_switch *ks) return ks8995_start(ks); } -/* ------------------------------------------------------------------------ */ - static ssize_t ks8995_registers_read(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { @@ -220,19 +218,9 @@ static ssize_t ks8995_registers_read(struct file *filp, struct kobject *kobj, dev = container_of(kobj, struct device, kobj); ks8995 = dev_get_drvdata(dev); - if (unlikely(off > ks8995->regs_attr.size)) - return 0; - - if ((off + count) > ks8995->regs_attr.size) - count = ks8995->regs_attr.size - off; - - if (unlikely(!count)) - return count; - return ks8995_read(ks8995, buf, off, count); } - static ssize_t ks8995_registers_write(struct file *filp, struct kobject *kobj, struct bin_attribute *bin_attr, char *buf, loff_t off, size_t count) { @@ -242,19 +230,9 @@ static ssize_t ks8995_registers_write(struct file *filp, struct kobject *kobj, dev = container_of(kobj, struct device, kobj); ks8995 = dev_get_drvdata(dev); - if (unlikely(off >= ks8995->regs_attr.size)) - return -EFBIG; - - if ((off + count) > ks8995->regs_attr.size) - count = ks8995->regs_attr.size - off; - - if (unlikely(!count)) - return count; - return ks8995_write(ks8995, buf, off, count); } - static const struct bin_attribute ks8995_registers_attr = { .attr = { .name = "registers", diff --git a/drivers/net/phy/teranetics.c b/drivers/net/phy/teranetics.c new file mode 100644 index 000000000..91e1bec60 --- /dev/null +++ b/drivers/net/phy/teranetics.c @@ -0,0 +1,135 @@ +/* + * Driver for Teranetics PHY + * + * Author: Shaohui Xie <Shaohui.Xie@freescale.com> + * + * Copyright 2015 Freescale Semiconductor, Inc. + * + * This file is licensed under the terms of the GNU General Public License + * version 2. This program is licensed "as is" without any warranty of any + * kind, whether express or implied. + */ + +#include <linux/kernel.h> +#include <linux/module.h> +#include <linux/mii.h> +#include <linux/ethtool.h> +#include <linux/mdio.h> +#include <linux/phy.h> + +MODULE_DESCRIPTION("Teranetics PHY driver"); +MODULE_AUTHOR("Shaohui Xie <Shaohui.Xie@freescale.com>"); +MODULE_LICENSE("GPL v2"); + +#define PHY_ID_TN2020 0x00a19410 +#define MDIO_PHYXS_LNSTAT_SYNC0 0x0001 +#define MDIO_PHYXS_LNSTAT_SYNC1 0x0002 +#define MDIO_PHYXS_LNSTAT_SYNC2 0x0004 +#define MDIO_PHYXS_LNSTAT_SYNC3 0x0008 +#define MDIO_PHYXS_LNSTAT_ALIGN 0x1000 + +#define MDIO_PHYXS_LANE_READY (MDIO_PHYXS_LNSTAT_SYNC0 | \ + MDIO_PHYXS_LNSTAT_SYNC1 | \ + MDIO_PHYXS_LNSTAT_SYNC2 | \ + MDIO_PHYXS_LNSTAT_SYNC3 | \ + MDIO_PHYXS_LNSTAT_ALIGN) + +static int teranetics_config_init(struct phy_device *phydev) +{ + phydev->supported = SUPPORTED_10000baseT_Full; + phydev->advertising = SUPPORTED_10000baseT_Full; + + return 0; +} + +static int teranetics_soft_reset(struct phy_device *phydev) +{ + return 0; +} + +static int teranetics_aneg_done(struct phy_device *phydev) +{ + int reg; + + /* auto negotiation state can only be checked when using copper + * port, if using fiber port, just lie it's done. + */ + if (!phy_read_mmd(phydev, MDIO_MMD_VEND1, 93)) { + reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1); + return (reg < 0) ? reg : (reg & BMSR_ANEGCOMPLETE); + } + + return 1; +} + +static int teranetics_config_aneg(struct phy_device *phydev) +{ + return 0; +} + +static int teranetics_read_status(struct phy_device *phydev) +{ + int reg; + + phydev->link = 1; + + phydev->speed = SPEED_10000; + phydev->duplex = DUPLEX_FULL; + + if (!phy_read_mmd(phydev, MDIO_MMD_VEND1, 93)) { + reg = phy_read_mmd(phydev, MDIO_MMD_PHYXS, MDIO_PHYXS_LNSTAT); + if (reg < 0 || + !((reg & MDIO_PHYXS_LANE_READY) == MDIO_PHYXS_LANE_READY)) { + phydev->link = 0; + return 0; + } + + reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1); + if (reg < 0 || !(reg & MDIO_STAT1_LSTATUS)) + phydev->link = 0; + } + + return 0; +} + +static int teranetics_match_phy_device(struct phy_device *phydev) +{ + return phydev->c45_ids.device_ids[3] == PHY_ID_TN2020; +} + +static struct phy_driver teranetics_driver[] = { +{ + .phy_id = PHY_ID_TN2020, + .phy_id_mask = 0xffffffff, + .name = "Teranetics TN2020", + .soft_reset = teranetics_soft_reset, + .aneg_done = teranetics_aneg_done, + .config_init = teranetics_config_init, + .config_aneg = teranetics_config_aneg, + .read_status = teranetics_read_status, + .match_phy_device = teranetics_match_phy_device, + .driver = { .owner = THIS_MODULE,}, +}, +}; + +static int __init teranetics_init(void) +{ + return phy_drivers_register(teranetics_driver, + ARRAY_SIZE(teranetics_driver)); +} + +static void __exit teranetics_exit(void) +{ + return phy_drivers_unregister(teranetics_driver, + ARRAY_SIZE(teranetics_driver)); +} + +module_init(teranetics_init); +module_exit(teranetics_exit); + +static struct mdio_device_id __maybe_unused teranetics_tbl[] = { + { PHY_ID_TN2020, 0xffffffff }, + { } +}; + +MODULE_DEVICE_TABLE(mdio, teranetics_tbl); diff --git a/drivers/net/phy/vitesse.c b/drivers/net/phy/vitesse.c index 17cad1851..76cad712d 100644 --- a/drivers/net/phy/vitesse.c +++ b/drivers/net/phy/vitesse.c @@ -66,7 +66,6 @@ #define PHY_ID_VSC8244 0x000fc6c0 #define PHY_ID_VSC8514 0x00070670 #define PHY_ID_VSC8574 0x000704a0 -#define PHY_ID_VSC8641 0x00070431 #define PHY_ID_VSC8662 0x00070660 #define PHY_ID_VSC8221 0x000fc550 #define PHY_ID_VSC8211 0x000fc4b0 @@ -273,18 +272,6 @@ static struct phy_driver vsc82xx_driver[] = { .config_intr = &vsc82xx_config_intr, .driver = { .owner = THIS_MODULE,}, }, { - .phy_id = PHY_ID_VSC8641, - .name = "Vitesse VSC8641", - .phy_id_mask = 0x000ffff0, - .features = PHY_GBIT_FEATURES, - .flags = PHY_HAS_INTERRUPT, - .config_init = &vsc824x_config_init, - .config_aneg = &vsc82x4_config_aneg, - .read_status = &genphy_read_status, - .ack_interrupt = &vsc824x_ack_interrupt, - .config_intr = &vsc82xx_config_intr, - .driver = { .owner = THIS_MODULE,}, -}, { .phy_id = PHY_ID_VSC8662, .name = "Vitesse VSC8662", .phy_id_mask = 0x000ffff0, @@ -331,7 +318,6 @@ static struct mdio_device_id __maybe_unused vitesse_tbl[] = { { PHY_ID_VSC8244, 0x000fffc0 }, { PHY_ID_VSC8514, 0x000ffff0 }, { PHY_ID_VSC8574, 0x000ffff0 }, - { PHY_ID_VSC8641, 0x000ffff0 }, { PHY_ID_VSC8662, 0x000ffff0 }, { PHY_ID_VSC8221, 0x000ffff0 }, { PHY_ID_VSC8211, 0x000ffff0 }, |