From bee8259dd31f419a883174556b11edc6f9a153d1 Mon Sep 17 00:00:00 2001 From: Shaohui Xie Date: Fri, 31 Jul 2015 16:58:42 +0800 Subject: [PATCH] net: phy: add driver for aquantia phy This patch added driver to support Aquantia PHYs AQ1202, AQ2104, AQR105, AQR405, which accessed through clause 45. Signed-off-by: Shaohui Xie Signed-off-by: David S. Miller --- drivers/net/phy/Kconfig | 5 ++ drivers/net/phy/Makefile | 1 + drivers/net/phy/aquantia.c | 152 +++++++++++++++++++++++++++++++++++++ 3 files changed, 158 insertions(+) create mode 100644 drivers/net/phy/aquantia.c diff --git a/drivers/net/phy/Kconfig b/drivers/net/phy/Kconfig index 8ef819144220..c07030dbe748 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--- diff --git a/drivers/net/phy/Makefile b/drivers/net/phy/Makefile index 16aac1c3e703..9bb103358c74 100644 --- a/drivers/net/phy/Makefile +++ b/drivers/net/phy/Makefile @@ -3,6 +3,7 @@ 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 diff --git a/drivers/net/phy/aquantia.c b/drivers/net/phy/aquantia.c new file mode 100644 index 000000000000..73d347d7cb04 --- /dev/null +++ b/drivers/net/phy/aquantia.c @@ -0,0 +1,152 @@ +/* + * Driver for Aquantia PHY + * + * Author: Shaohui Xie + * + * 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 +#include +#include +#include +#include +#include +#include + +#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_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, + .aneg_done = aquantia_aneg_done, + .config_aneg = aquantia_config_aneg, + .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, + .aneg_done = aquantia_aneg_done, + .config_aneg = aquantia_config_aneg, + .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, + .aneg_done = aquantia_aneg_done, + .config_aneg = aquantia_config_aneg, + .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, + .aneg_done = aquantia_aneg_done, + .config_aneg = aquantia_config_aneg, + .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 "); +MODULE_LICENSE("GPL v2");