mirror of
https://github.com/smaeul/u-boot.git
synced 2025-11-03 21:48:15 +00:00
c624d168bf
This patch adds support for Realtek PHY modules RTL8211DN and RTL8211E (variants: RTL8211E-VB-CG, RTL8211E-VL-CG, RTL8211EG-VB-CG), which can be found on Freescale's T1040RDB boards. To make the driver more generic across 8211 family, a generic name 8211x is added for macros and function names. Signed-off-by: Bhupesh Sharma <bhupesh.sharma@freescale.com> Acked-by: York Sun <yorksun@freescale.com>
142 lines
3.2 KiB
C
142 lines
3.2 KiB
C
/*
|
|
* RealTek PHY drivers
|
|
*
|
|
* SPDX-License-Identifier: GPL-2.0+
|
|
*
|
|
* Copyright 2010-2011 Freescale Semiconductor, Inc.
|
|
* author Andy Fleming
|
|
*/
|
|
#include <config.h>
|
|
#include <common.h>
|
|
#include <phy.h>
|
|
|
|
#define PHY_AUTONEGOTIATE_TIMEOUT 5000
|
|
|
|
/* RTL8211x PHY Status Register */
|
|
#define MIIM_RTL8211x_PHY_STATUS 0x11
|
|
#define MIIM_RTL8211x_PHYSTAT_SPEED 0xc000
|
|
#define MIIM_RTL8211x_PHYSTAT_GBIT 0x8000
|
|
#define MIIM_RTL8211x_PHYSTAT_100 0x4000
|
|
#define MIIM_RTL8211x_PHYSTAT_DUPLEX 0x2000
|
|
#define MIIM_RTL8211x_PHYSTAT_SPDDONE 0x0800
|
|
#define MIIM_RTL8211x_PHYSTAT_LINK 0x0400
|
|
|
|
|
|
/* RealTek RTL8211x */
|
|
static int rtl8211x_config(struct phy_device *phydev)
|
|
{
|
|
phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
|
|
|
|
genphy_config_aneg(phydev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8211x_parse_status(struct phy_device *phydev)
|
|
{
|
|
unsigned int speed;
|
|
unsigned int mii_reg;
|
|
|
|
mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_RTL8211x_PHY_STATUS);
|
|
|
|
if (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) {
|
|
int i = 0;
|
|
|
|
/* in case of timeout ->link is cleared */
|
|
phydev->link = 1;
|
|
puts("Waiting for PHY realtime link");
|
|
while (!(mii_reg & MIIM_RTL8211x_PHYSTAT_SPDDONE)) {
|
|
/* Timeout reached ? */
|
|
if (i > PHY_AUTONEGOTIATE_TIMEOUT) {
|
|
puts(" TIMEOUT !\n");
|
|
phydev->link = 0;
|
|
break;
|
|
}
|
|
|
|
if ((i++ % 1000) == 0)
|
|
putc('.');
|
|
udelay(1000); /* 1 ms */
|
|
mii_reg = phy_read(phydev, MDIO_DEVAD_NONE,
|
|
MIIM_RTL8211x_PHY_STATUS);
|
|
}
|
|
puts(" done\n");
|
|
udelay(500000); /* another 500 ms (results in faster booting) */
|
|
} else {
|
|
if (mii_reg & MIIM_RTL8211x_PHYSTAT_LINK)
|
|
phydev->link = 1;
|
|
else
|
|
phydev->link = 0;
|
|
}
|
|
|
|
if (mii_reg & MIIM_RTL8211x_PHYSTAT_DUPLEX)
|
|
phydev->duplex = DUPLEX_FULL;
|
|
else
|
|
phydev->duplex = DUPLEX_HALF;
|
|
|
|
speed = (mii_reg & MIIM_RTL8211x_PHYSTAT_SPEED);
|
|
|
|
switch (speed) {
|
|
case MIIM_RTL8211x_PHYSTAT_GBIT:
|
|
phydev->speed = SPEED_1000;
|
|
break;
|
|
case MIIM_RTL8211x_PHYSTAT_100:
|
|
phydev->speed = SPEED_100;
|
|
break;
|
|
default:
|
|
phydev->speed = SPEED_10;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int rtl8211x_startup(struct phy_device *phydev)
|
|
{
|
|
/* Read the Status (2x to make sure link is right) */
|
|
genphy_update_link(phydev);
|
|
rtl8211x_parse_status(phydev);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* Support for RTL8211B PHY */
|
|
static struct phy_driver RTL8211B_driver = {
|
|
.name = "RealTek RTL8211B",
|
|
.uid = 0x1cc910,
|
|
.mask = 0xfffff0,
|
|
.features = PHY_GBIT_FEATURES,
|
|
.config = &rtl8211x_config,
|
|
.startup = &rtl8211x_startup,
|
|
.shutdown = &genphy_shutdown,
|
|
};
|
|
|
|
/* Support for RTL8211E-VB-CG, RTL8211E-VL-CG and RTL8211EG-VB-CG PHYs */
|
|
static struct phy_driver RTL8211E_driver = {
|
|
.name = "RealTek RTL8211E",
|
|
.uid = 0x1cc915,
|
|
.mask = 0xfffff0,
|
|
.features = PHY_GBIT_FEATURES,
|
|
.config = &rtl8211x_config,
|
|
.startup = &rtl8211x_startup,
|
|
.shutdown = &genphy_shutdown,
|
|
};
|
|
|
|
/* Support for RTL8211DN PHY */
|
|
static struct phy_driver RTL8211DN_driver = {
|
|
.name = "RealTek RTL8211DN",
|
|
.uid = 0x1cc914,
|
|
.mask = 0xfffff0,
|
|
.features = PHY_GBIT_FEATURES,
|
|
.config = &rtl8211x_config,
|
|
.startup = &rtl8211x_startup,
|
|
.shutdown = &genphy_shutdown,
|
|
};
|
|
|
|
int phy_realtek_init(void)
|
|
{
|
|
phy_register(&RTL8211B_driver);
|
|
phy_register(&RTL8211E_driver);
|
|
phy_register(&RTL8211DN_driver);
|
|
|
|
return 0;
|
|
}
|