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Viewing changes to roms/u-boot/drivers/net/phy/davicom.c

  • Committer: Phil Dennis-Jordan
  • Date: 2017-07-21 08:03:43 UTC
  • mfrom: (1.1.1)
  • Revision ID: phil@philjordan.eu-20170721080343-2yr2vdj7713czahv
New upstream release 2.9.0.

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roms/u-boot/drivers/net/phy/davicom.c
 
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/*
 
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 * Davicom PHY drivers
 
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 *
 
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 * SPDX-License-Identifier:     GPL-2.0+
 
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 *
 
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 * Copyright 2010-2011 Freescale Semiconductor, Inc.
 
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 * author Andy Fleming
 
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 */
 
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#include <phy.h>
 
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#define MIIM_DM9161_SCR                0x10
 
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#define MIIM_DM9161_SCR_INIT   0x0610
 
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/* DM9161 Specified Configuration and Status Register */
 
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#define MIIM_DM9161_SCSR       0x11
 
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#define MIIM_DM9161_SCSR_100F  0x8000
 
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#define MIIM_DM9161_SCSR_100H  0x4000
 
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#define MIIM_DM9161_SCSR_10F   0x2000
 
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#define MIIM_DM9161_SCSR_10H   0x1000
 
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/* DM9161 10BT Configuration/Status */
 
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#define MIIM_DM9161_10BTCSR    0x12
 
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#define MIIM_DM9161_10BTCSR_INIT       0x7800
 
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/* Davicom DM9161E */
 
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static int dm9161_config(struct phy_device *phydev)
 
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{
 
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        phy_write(phydev, MDIO_DEVAD_NONE, MII_BMCR, BMCR_ISOLATE);
 
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        /* Do not bypass the scrambler/descrambler */
 
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        phy_write(phydev, MDIO_DEVAD_NONE, MIIM_DM9161_SCR,
 
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                        MIIM_DM9161_SCR_INIT);
 
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        /* Clear 10BTCSR to default */
 
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        phy_write(phydev, MDIO_DEVAD_NONE, MIIM_DM9161_10BTCSR,
 
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                        MIIM_DM9161_10BTCSR_INIT);
 
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        genphy_config_aneg(phydev);
 
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        return 0;
 
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}
 
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static int dm9161_parse_status(struct phy_device *phydev)
 
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{
 
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        int mii_reg;
 
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        mii_reg = phy_read(phydev, MDIO_DEVAD_NONE, MIIM_DM9161_SCSR);
 
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        if (mii_reg & (MIIM_DM9161_SCSR_100F | MIIM_DM9161_SCSR_100H))
 
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                phydev->speed = SPEED_100;
 
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        else
 
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                phydev->speed = SPEED_10;
 
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        if (mii_reg & (MIIM_DM9161_SCSR_100F | MIIM_DM9161_SCSR_10F))
 
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                phydev->duplex = DUPLEX_FULL;
 
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        else
 
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                phydev->duplex = DUPLEX_HALF;
 
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        return 0;
 
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}
 
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static int dm9161_startup(struct phy_device *phydev)
 
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{
 
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        genphy_update_link(phydev);
 
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        dm9161_parse_status(phydev);
 
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        return 0;
 
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}
 
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static struct phy_driver DM9161_driver = {
 
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        .name = "Davicom DM9161E",
 
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        .uid = 0x181b880,
 
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        .mask = 0xffffff0,
 
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        .features = PHY_BASIC_FEATURES,
 
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        .config = &dm9161_config,
 
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        .startup = &dm9161_startup,
 
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        .shutdown = &genphy_shutdown,
 
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};
 
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int phy_davicom_init(void)
 
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{
 
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        phy_register(&DM9161_driver);
 
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        return 0;
 
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}