upstream u-boot with additional patches for our devices/boards: https://lists.denx.de/pipermail/u-boot/2017-March/282789.html (AXP crashes) ; Gbit ethernet patch for some LIME2 revisions ; with SPI flash support
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u-boot/drivers/net/phy/natsemi.c

120 lines
2.4 KiB

/*
* National Semiconductor PHY drivers
*
* SPDX-License-Identifier: GPL-2.0+
*
* Copyright 2010-2011 Freescale Semiconductor, Inc.
* author Andy Fleming
*/
#include <phy.h>
/* NatSemi DP83630 */
#define DP83630_PHY_PAGESEL_REG 0x13
#define DP83630_PHY_PTP_COC_REG 0x14
#define DP83630_PHY_PTP_CLKOUT_EN (1<<15)
#define DP83630_PHY_RBR_REG 0x17
static int dp83630_config(struct phy_device *phydev)
{
int ptp_coc_reg;
phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
phy_write(phydev, MDIO_DEVAD_NONE, DP83630_PHY_PAGESEL_REG, 0x6);
ptp_coc_reg = phy_read(phydev, MDIO_DEVAD_NONE,
DP83630_PHY_PTP_COC_REG);
ptp_coc_reg &= ~DP83630_PHY_PTP_CLKOUT_EN;
phy_write(phydev, MDIO_DEVAD_NONE, DP83630_PHY_PTP_COC_REG,
ptp_coc_reg);
phy_write(phydev, MDIO_DEVAD_NONE, DP83630_PHY_PAGESEL_REG, 0);
genphy_config_aneg(phydev);
return 0;
}
static struct phy_driver DP83630_driver = {
.name = "NatSemi DP83630",
.uid = 0x20005ce1,
.mask = 0xfffffff0,
.features = PHY_BASIC_FEATURES,
.config = &dp83630_config,
.startup = &genphy_startup,
.shutdown = &genphy_shutdown,
};
/* DP83865 Link and Auto-Neg Status Register */
#define MIIM_DP83865_LANR 0x11
#define MIIM_DP83865_SPD_MASK 0x0018
#define MIIM_DP83865_SPD_1000 0x0010
#define MIIM_DP83865_SPD_100 0x0008
#define MIIM_DP83865_DPX_FULL 0x0002
/* NatSemi DP83865 */
static int dp83865_config(struct phy_device *phydev)
{
phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_RESET);
genphy_config_aneg(phydev);
return 0;
}
static int dp83865_parse_status(struct phy_device *phydev)
{
int mii_reg;
mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_DP83865_LANR);
switch (mii_reg & MIIM_DP83865_SPD_MASK) {
case MIIM_DP83865_SPD_1000:
phydev->speed = SPEED_1000;
break;
case MIIM_DP83865_SPD_100:
phydev->speed = SPEED_100;
break;
default:
phydev->speed = SPEED_10;
break;
}
if (mii_reg & MIIM_DP83865_DPX_FULL)
phydev->duplex = DUPLEX_FULL;
else
phydev->duplex = DUPLEX_HALF;
return 0;
}
static int dp83865_startup(struct phy_device *phydev)
{
genphy_update_link(phydev);
dp83865_parse_status(phydev);
return 0;
}
static struct phy_driver DP83865_driver = {
.name = "NatSemi DP83865",
.uid = 0x20005c70,
.mask = 0xfffffff0,
.features = PHY_GBIT_FEATURES,
.config = &dp83865_config,
.startup = &dp83865_startup,
.shutdown = &genphy_shutdown,
};
int phy_natsemi_init(void)
{
phy_register(&DP83630_driver);
phy_register(&DP83865_driver);
return 0;
}