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Viewing changes to roms/u-boot/arch/arm/cpu/arm926ejs/davinci/et1011c.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/arch/arm/cpu/arm926ejs/davinci/et1011c.c
 
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/*
 
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 * LSI ET1011C PHY Driver for TI DaVinci(TMS320DM6467) board.
 
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 *
 
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 * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
 
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 *
 
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 * SPDX-License-Identifier:     GPL-2.0+
 
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 */
 
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#include <common.h>
 
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#include <net.h>
 
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#include <miiphy.h>
 
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#include <asm/arch/emac_defs.h>
 
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#include "../../../../../drivers/net/davinci_emac.h"
 
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#ifdef CONFIG_DRIVER_TI_EMAC
 
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#ifdef CONFIG_CMD_NET
 
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/* LSI PHYSICAL LAYER TRANSCEIVER ET1011C */
 
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#define MII_PHY_CONFIG_REG              22
 
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/* PHY Config bits */
 
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#define PHY_SYS_CLK_EN                  (1 << 4)
 
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int et1011c_get_link_speed(int phy_addr)
 
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{
 
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        u_int16_t       data;
 
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        if (davinci_eth_phy_read(phy_addr, MII_STATUS_REG, &data) && (data & 0x04)) {
 
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                davinci_eth_phy_read(phy_addr, MII_PHY_CONFIG_REG, &data);
 
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                /* Enable 125MHz clock sourced from PHY */
 
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                davinci_eth_phy_write(phy_addr, MII_PHY_CONFIG_REG,
 
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                        data | PHY_SYS_CLK_EN);
 
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                return (1);
 
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        }
 
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        return (0);
 
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}
 
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#endif  /* CONFIG_CMD_NET */
 
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#endif  /* CONFIG_DRIVER_ETHER */