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d678a59d2d
When bringing in the series 'arm: dts: am62-beagleplay: Fix Beagleplay Ethernet"' I failed to notice that b4 noticed it was based on next and so took that as the base commit and merged that part of next to master. This reverts commitc8ffd1356d, reversing changes made to2ee6f3a5f7. Reported-by: Jonas Karlman <jonas@kwiboo.se> Signed-off-by: Tom Rini <trini@konsulko.com>
81 lines
1.8 KiB
C
81 lines
1.8 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* Davicom PHY drivers
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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 <common.h>
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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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int ret;
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ret = genphy_update_link(phydev);
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if (ret)
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return ret;
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return dm9161_parse_status(phydev);
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}
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U_BOOT_PHY_DRIVER(dm9161) = {
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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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