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/*
* drivers/net/phy/at803x.c
*
* Driver for Atheros 803x PHY
*
* Author: Matus Ujhelyi <ujhelyi.m@gmail.com>
*
* 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.
*/
#include <linux/phy.h>
#include <linux/module.h>
#include <linux/string.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#define AT803X_INTR_ENABLE 0x12
#define AT803X_INTR_STATUS 0x13
#define AT803X_WOL_ENABLE 0x01
#define AT803X_DEVICE_ADDR 0x03
#define AT803X_LOC_MAC_ADDR_0_15_OFFSET 0x804C
#define AT803X_LOC_MAC_ADDR_16_31_OFFSET 0x804B
#define AT803X_LOC_MAC_ADDR_32_47_OFFSET 0x804A
#define AT803X_MMD_ACCESS_CONTROL 0x0D
#define AT803X_MMD_ACCESS_CONTROL_DATA 0x0E
#define AT803X_FUNC_DATA 0x4003
MODULE_DESCRIPTION("Atheros 803x PHY driver");
MODULE_AUTHOR("Matus Ujhelyi");
MODULE_LICENSE("GPL");
static void at803x_set_wol_mac_addr(struct phy_device *phydev)
{
struct net_device *ndev = phydev->attached_dev;
const u8 *mac;
unsigned int i, offsets[] = {
AT803X_LOC_MAC_ADDR_32_47_OFFSET,
AT803X_LOC_MAC_ADDR_16_31_OFFSET,
AT803X_LOC_MAC_ADDR_0_15_OFFSET,
};
if (!ndev)
return;
mac = (const u8 *) ndev->dev_addr;
if (!is_valid_ether_addr(mac))
return;
for (i = 0; i < 3; i++) {
phy_write(phydev, AT803X_MMD_ACCESS_CONTROL,
AT803X_DEVICE_ADDR);
phy_write(phydev, AT803X_MMD_ACCESS_CONTROL_DATA,
offsets[i]);
phy_write(phydev, AT803X_MMD_ACCESS_CONTROL,
AT803X_FUNC_DATA);
phy_write(phydev, AT803X_MMD_ACCESS_CONTROL_DATA,
mac[(i * 2) + 1] | (mac[(i * 2)] << 8));
}
}
static int at803x_config_init(struct phy_device *phydev)
{
int val;
u32 features;
int status;
features = SUPPORTED_TP | SUPPORTED_MII | SUPPORTED_AUI |
SUPPORTED_FIBRE | SUPPORTED_BNC;
val = phy_read(phydev, MII_BMSR);
if (val < 0)
return val;
if (val & BMSR_ANEGCAPABLE)
features |= SUPPORTED_Autoneg;
if (val & BMSR_100FULL)
features |= SUPPORTED_100baseT_Full;
if (val & BMSR_100HALF)
features |= SUPPORTED_100baseT_Half;
if (val & BMSR_10FULL)
features |= SUPPORTED_10baseT_Full;
if (val & BMSR_10HALF)
features |= SUPPORTED_10baseT_Half;
if (val & BMSR_ESTATEN) {
val = phy_read(phydev, MII_ESTATUS);
if (val < 0)
return val;
if (val & ESTATUS_1000_TFULL)
features |= SUPPORTED_1000baseT_Full;
if (val & ESTATUS_1000_THALF)
features |= SUPPORTED_1000baseT_Half;
}
phydev->supported = features;
phydev->advertising = features;
/* enable WOL */
at803x_set_wol_mac_addr(phydev);
status = phy_write(phydev, AT803X_INTR_ENABLE, AT803X_WOL_ENABLE);
status = phy_read(phydev, AT803X_INTR_STATUS);
return 0;
}
/* ATHEROS 8035 */
static struct phy_driver at8035_driver = {
.phy_id = 0x004dd072,
.name = "Atheros 8035 ethernet",
.phy_id_mask = 0xffffffef,
.config_init = at803x_config_init,
.features = PHY_GBIT_FEATURES,
.flags = PHY_HAS_INTERRUPT,
.config_aneg = &genphy_config_aneg,
.read_status = &genphy_read_status,
.driver = {
.owner = THIS_MODULE,
},
};
/* ATHEROS 8030 */
static struct phy_driver at8030_driver = {
.phy_id = 0x004dd076,
.name = "Atheros 8030 ethernet",
.phy_id_mask = 0xffffffef,
.config_init = at803x_config_init,
.features = PHY_GBIT_FEATURES,
.flags = PHY_HAS_INTERRUPT,
.config_aneg = &genphy_config_aneg,
.read_status = &genphy_read_status,
.driver = {
.owner = THIS_MODULE,
},
};
static int __init atheros_init(void)
{
int ret;
ret = phy_driver_register(&at8035_driver);
if (ret)
goto err1;
ret = phy_driver_register(&at8030_driver);
if (ret)
goto err2;
return 0;
err2:
phy_driver_unregister(&at8035_driver);
err1:
return ret;
}
static void __exit atheros_exit(void)
{
phy_driver_unregister(&at8035_driver);
phy_driver_unregister(&at8030_driver);
}
module_init(atheros_init);
module_exit(atheros_exit);
static struct mdio_device_id __maybe_unused atheros_tbl[] = {
{ 0x004dd076, 0xffffffef },
{ 0x004dd072, 0xffffffef },
{ }
};
MODULE_DEVICE_TABLE(mdio, atheros_tbl);
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