diff options
| -rw-r--r-- | drivers/net/phy/Kconfig | 5 | ||||
| -rw-r--r-- | drivers/net/phy/Makefile | 1 | ||||
| -rw-r--r-- | drivers/net/phy/teranetics.c | 128 |
3 files changed, 134 insertions, 0 deletions
diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index cb86d7a01542..d6aff873803c 100644 --- a/drivers/net/phy/Kconfig +++ b/drivers/net/phy/Kconfig @@ -54,6 +54,11 @@ 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--- diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile index fcc25a0c45cd..16aac1c3e703 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile @@ -9,6 +9,7 @@ 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 diff --git a/drivers/net/phy/teranetics.c b/drivers/net/phy/teranetics.c new file mode 100644 index 000000000000..7dcb5aada1c4 --- /dev/null +++ b/drivers/net/phy/teranetics.c @@ -0,0 +1,128 @@ +/* + * 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; + + reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1); + return (reg < 0) ? reg : (reg & BMSR_ANEGCOMPLETE); +} + +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); |