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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 <Shaohui.Xie@freescale.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Shaohui Xie
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/* | ||
* 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. | ||
*/ | ||
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#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> | ||
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#define PHY_ID_AQ1202 0x03a1b445 | ||
#define PHY_ID_AQ2104 0x03a1b460 | ||
#define PHY_ID_AQR105 0x03a1b4a2 | ||
#define PHY_ID_AQR405 0x03a1b4b0 | ||
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#define PHY_AQUANTIA_FEATURES (SUPPORTED_10000baseT_Full | \ | ||
SUPPORTED_1000baseT_Full | \ | ||
SUPPORTED_100baseT_Full | \ | ||
PHY_DEFAULT_FEATURES) | ||
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static int aquantia_config_aneg(struct phy_device *phydev) | ||
{ | ||
phydev->supported = PHY_AQUANTIA_FEATURES; | ||
phydev->advertising = phydev->supported; | ||
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return 0; | ||
} | ||
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static int aquantia_aneg_done(struct phy_device *phydev) | ||
{ | ||
int reg; | ||
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reg = phy_read_mmd(phydev, MDIO_MMD_AN, MDIO_STAT1); | ||
return (reg < 0) ? reg : (reg & BMSR_ANEGCOMPLETE); | ||
} | ||
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static int aquantia_read_status(struct phy_device *phydev) | ||
{ | ||
int reg; | ||
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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; | ||
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reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xc800); | ||
mdelay(10); | ||
reg = phy_read_mmd(phydev, MDIO_MMD_AN, 0xc800); | ||
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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; | ||
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return 0; | ||
} | ||
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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,}, | ||
}, | ||
}; | ||
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static int __init aquantia_init(void) | ||
{ | ||
return phy_drivers_register(aquantia_driver, | ||
ARRAY_SIZE(aquantia_driver)); | ||
} | ||
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static void __exit aquantia_exit(void) | ||
{ | ||
return phy_drivers_unregister(aquantia_driver, | ||
ARRAY_SIZE(aquantia_driver)); | ||
} | ||
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module_init(aquantia_init); | ||
module_exit(aquantia_exit); | ||
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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 }, | ||
{ } | ||
}; | ||
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MODULE_DEVICE_TABLE(mdio, aquantia_tbl); | ||
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MODULE_DESCRIPTION("Aquantia PHY driver"); | ||
MODULE_AUTHOR("Shaohui Xie <Shaohui.Xie@freescale.com>"); | ||
MODULE_LICENSE("GPL v2"); |